xref: /trunk/main/sal/osl/unx/socket.c (revision cdf0e10c4e3984b49a9502b011690b615761d4a3)
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27 
28 #include "system.h"
29 
30 #include <osl/socket.h>
31 #include <osl/diagnose.h>
32 #include <osl/mutex.h>
33 #include <osl/signal.h>
34 
35 #include <rtl/alloc.h>
36 
37 #include <ctype.h>
38 #include <sal/types.h>
39 
40 #include "sockimpl.h"
41 
42 
43 /* defines for poll */
44 #ifdef HAVE_POLL_H
45 #undef HAVE_POLL_H
46 #endif
47 
48 #if defined(LINUX) || defined(NETBSD) || defined ( FREEBSD ) || defined (MACOSX)
49 #include <sys/poll.h>
50 #define HAVE_POLL_H
51 #endif /* HAVE_POLL_H */
52 
53 #if defined(SOLARIS)
54 #include <poll.h>
55 #define HAVE_POLL_H
56 #endif /* SOLARIS */
57 
58 #ifndef HAVE_POLL_H
59 #define POLLIN  0x0001
60 #define POLLOUT 0x0002
61 #define POLLPRI 0x0004
62 #endif /* HAVE_POLL_H */
63 
64 
65 /* defines for shutdown */
66 #define SD_RECEIVE 0
67 #define SD_SEND 1
68 #define SD_BOTH 2
69 
70 
71 /*
72     oslSocketAddr is a pointer to a Berkeley struct sockaddr.
73     I refrained from using sockaddr_in because of possible further
74     extensions of this socket-interface (IP-NG?).
75     The intention was to hide all Berkeley data-structures from
76     direct access past the osl-interface.
77 
78     The current implementation is internet (IP) centered. All
79     the constructor-functions (osl_create...) take parameters
80     that will probably make sense only in the IP-environment
81     (e.g. because of using the dotted-address-format).
82 
83     If the interface will be extended to host other protocol-
84     families, I expect no externally visible changes in the
85     existing functions. You'll probably need only new
86     constructor-functions who take the different address
87     formats into consideration (maybe a long dotted address
88     or whatever).
89 */
90 
91 /* _Note_ that I rely on the fact that oslSocketAddr and struct sockaddr */
92 /* are the same! I don't like it very much but see no other easy way to  */
93 /* conceal the struct sockaddr from the eyes of the user. */
94 
95 
96 #define OSL_INVALID_SOCKET      -1
97 #define OSL_SOCKET_ERROR        -1
98 
99 
100 /* Buffer size for gethostbyname */
101 #define MAX_HOSTBUFFER_SIZE 2048
102 
103 /*****************************************************************************/
104 /* enum oslAddrFamily */
105 /*****************************************************************************/
106 
107 /* map */
108 static unsigned long FamilyMap[]= {
109     AF_INET,                    /* osl_Socket_FamilyInet    */
110     AF_IPX,                     /* osl_Socket_FamilyIpx     */
111     0                           /* osl_Socket_FamilyInvalid */
112 };
113 
114 /* reverse map */
115 static oslAddrFamily osl_AddrFamilyFromNative(sal_uInt32 nativeType)
116 {
117     oslAddrFamily i= (oslAddrFamily)0;
118 
119     while(i != osl_Socket_FamilyInvalid)
120     {
121         if(FamilyMap[i] == nativeType)
122             return i;
123         i = (oslAddrFamily) ( i + 1 );
124     }
125 
126     return i;
127 }
128 
129 /* macros */
130 #define FAMILY_FROM_NATIVE(y) osl_AddrFamilyFromNative(y)
131 #define FAMILY_TO_NATIVE(x) (short)FamilyMap[x]
132 
133 /*****************************************************************************/
134 /* enum oslProtocol */
135 /*****************************************************************************/
136 
137 /* map */
138 static sal_uInt32 ProtocolMap[]= {
139     0,                          /* osl_Socket_ProtocolIp      */
140     NSPROTO_IPX,                /* osl_Socket_ProtocolIpx     */
141     NSPROTO_SPX,                /* osl_Socket_ProtocolSpx     */
142     NSPROTO_SPXII,              /* osl_Socket_ProtocolSpxII   */
143     0                           /* osl_Socket_ProtocolInvalid */
144 };
145 
146 /* reverse map */
147 /* mfe: NOT USED
148 static oslProtocol osl_ProtocolFromNative(sal_uInt32 nativeType)
149 {
150     oslProtocol i= (oslProtocol)0;
151 
152     while(i != osl_Socket_ProtocolInvalid)
153     {
154         if(ProtocolMap[i] == nativeType)
155             return i;
156         i = (oslProtocol) ( i + 1);
157     }
158 
159     return i;
160 }
161 */
162 
163 /* macros */
164 #define PROTOCOL_FROM_NATIVE(y) osl_ProtocolFromNative(y)
165 #define PROTOCOL_TO_NATIVE(x)   ProtocolMap[x]
166 
167 
168 /*****************************************************************************/
169 /* enum oslSocketType */
170 /*****************************************************************************/
171 
172 /* map */
173 static sal_uInt32 TypeMap[]= {
174     SOCK_STREAM,                /* osl_Socket_TypeStream    */
175     SOCK_DGRAM,                 /* osl_Socket_TypeDgram     */
176     SOCK_RAW,                   /* osl_Socket_TypeRaw       */
177     SOCK_RDM,                   /* osl_Socket_TypeRdm       */
178     SOCK_SEQPACKET,             /* osl_Socket_TypeSeqPacket */
179     0                           /* osl_Socket_TypeInvalid   */
180 };
181 
182 /* reverse map */
183 static oslSocketType osl_SocketTypeFromNative(sal_uInt32 nativeType)
184 {
185     oslSocketType i= (oslSocketType)0;
186 
187     while(i != osl_Socket_TypeInvalid)
188     {
189         if(TypeMap[i] == nativeType)
190             return i;
191         i = (oslSocketType)(i + 1);
192     }
193 
194     return i;
195 }
196 
197 /* macros */
198 #define TYPE_TO_NATIVE(x)       TypeMap[x]
199 #define TYPE_FROM_NATIVE(y)     osl_SocketTypeFromNative(y)
200 
201 
202 /*****************************************************************************/
203 /* enum oslSocketOption */
204 /*****************************************************************************/
205 
206 /* map */
207 static sal_uInt32 OptionMap[]= {
208     SO_DEBUG,                   /* osl_Socket_OptionDebug       */
209     SO_ACCEPTCONN,              /* osl_Socket_OptionAcceptConn  */
210     SO_REUSEADDR,               /* osl_Socket_OptionReuseAddr   */
211     SO_KEEPALIVE,               /* osl_Socket_OptionKeepAlive   */
212     SO_DONTROUTE,               /* osl_Socket_OptionDontRoute   */
213     SO_BROADCAST,               /* osl_Socket_OptionBroadcast   */
214     SO_USELOOPBACK,             /* osl_Socket_OptionUseLoopback */
215     SO_LINGER,                  /* osl_Socket_OptionLinger      */
216     SO_OOBINLINE,               /* osl_Socket_OptionOOBinLine   */
217     SO_SNDBUF,                  /* osl_Socket_OptionSndBuf      */
218     SO_RCVBUF,                  /* osl_Socket_OptionRcvBuf      */
219     SO_SNDLOWAT,                /* osl_Socket_OptionSndLowat    */
220     SO_RCVLOWAT,                /* osl_Socket_OptionRcvLowat    */
221     SO_SNDTIMEO,                /* osl_Socket_OptionSndTimeo    */
222     SO_RCVTIMEO,                /* osl_Socket_OptionRcvTimeo    */
223     SO_ERROR,                   /* osl_Socket_OptionError       */
224     SO_TYPE,                    /* osl_Socket_OptionType        */
225     TCP_NODELAY,                /* osl_Socket_OptionTcpNoDelay  */
226     0                           /* osl_Socket_OptionInvalid     */
227 };
228 
229 /* reverse map */
230 /* mfe: NOT USED
231 static oslSocketOption osl_SocketOptionFromNative(sal_uInt32 nativeType)
232 {
233     oslSocketOption i= (oslSocketOption)0;
234 
235     while(i != osl_Socket_OptionInvalid)
236     {
237         if(OptionMap[i] == nativeType)
238             return i;
239         i = (oslSocketOption) ( i + 1 );
240     }
241 
242     return i;
243 }
244 */
245 /* macros */
246 #define OPTION_TO_NATIVE(x)     OptionMap[x]
247 #define OPTION_FROM_NATIVE(y)       osl_SocketOptionFromNative(y)
248 
249 
250 /*****************************************************************************/
251 /* enum oslSocketOptionLevel */
252 /*****************************************************************************/
253 
254 static sal_uInt32 OptionLevelMap[]= {
255     SOL_SOCKET,                 /* osl_Socket_LevelSocket  */
256     IPPROTO_TCP,                /* osl_Socket_LevelTcp     */
257     0                           /* osl_Socket_LevelInvalid */
258 };
259 
260 /* reverse map */
261 /* mfe: NOT USED
262 static oslSocketOptionLevel osl_SocketOptionLevelFromNative(sal_uInt32 nativeType)
263 {
264     oslSocketOptionLevel i= (oslSocketOptionLevel)0;
265 
266     while(i != osl_Socket_LevelInvalid)
267     {
268         if(OptionLevelMap[i] == nativeType)
269             return i;
270         i = (oslSocketOptionLevel) ( i + 1 );
271     }
272 
273     return i;
274 }
275 */
276 /* macros */
277 #define OPTION_LEVEL_TO_NATIVE(x)       OptionLevelMap[x]
278 #define OPTION_LEVEL_FROM_NATIVE(y)     osl_SocketOptionLevelFromNative(y)
279 
280 /*****************************************************************************/
281 /* enum oslSocketMsgFlag */
282 /*****************************************************************************/
283 
284 static sal_uInt32 SocketMsgFlagMap[]= {
285     0,                          /* osl_Socket_MsgNormal    */
286     MSG_OOB,                    /* osl_Socket_MsgOOB       */
287     MSG_PEEK,                   /* osl_Socket_MsgPeek      */
288     MSG_DONTROUTE,              /* osl_Socket_MsgDontRoute */
289     MSG_MAXIOVLEN,              /* osl_Socket_MsgMaxIOVLen */
290     0                           /* osl_Socket_MsgInvalid   */
291 };
292 
293 /* reverse map */
294 /* mfe: NOT USED
295 static oslSocketMsgFlag osl_SocketMsgFlagFromNative(sal_uInt32 nativeType)
296 {
297     oslSocketMsgFlag i= (oslSocketMsgFlag)0;
298 
299     while(i != osl_Socket_MsgInvalid)
300     {
301         if(SocketMsgFlagMap[i] == nativeType)
302             return i;
303         i = (oslSocketMsgFlag) ( i + 1 );
304     }
305 
306     return i;
307 }
308 */
309 
310 /* macros */
311 #define MSG_FLAG_TO_NATIVE(x)       SocketMsgFlagMap[x]
312 #define MSG_FLAG_FROM_NATIVE(y)     osl_SocketMsgFlagFromNative(y)
313 
314 
315 /*****************************************************************************/
316 /* enum oslSocketDirection */
317 /*****************************************************************************/
318 
319 static sal_uInt32 SocketDirection[]= {
320     SD_RECEIVE,                 /* osl_Socket_DirRead      */
321     SD_SEND,                    /* osl_Socket_DirWrite     */
322     SD_BOTH,                    /* osl_Socket_DirReadWrite */
323     0                           /* osl_Socket_DirInvalid   */
324 };
325 
326 /* reverse map */
327 /* mfe: NOT USED
328 static oslSocketDirection osl_SocketDirectionFromNative(sal_uInt32 nativeType)
329 {
330     oslSocketDirection i= (oslSocketDirection)0;
331 
332     while(i != osl_Socket_DirInvalid)
333     {
334         if(SocketDirection[i] == nativeType)
335             return i;
336         i = (oslSocketDirection) ( i + 1 );
337     }
338 
339     return i;
340 }
341 */
342 
343 /* macros */
344 #define DIRECTION_TO_NATIVE(x)      SocketDirection[x]
345 #define DIRECTION_FROM_NATIVE(y)    osl_SocketDirectionFromNative(y)
346 
347 /*****************************************************************************/
348 /* enum oslSocketError */
349 /*****************************************************************************/
350 
351 static struct
352 {
353     int            errcode;
354     oslSocketError error;
355 } SocketError[]= {
356     { 0,               osl_Socket_E_None              }, /* no error */
357     { ENOTSOCK,        osl_Socket_E_NotSocket         }, /* Socket operation on non-socket */
358     { EDESTADDRREQ,    osl_Socket_E_DestAddrReq       }, /* Destination address required */
359     { EMSGSIZE,        osl_Socket_E_MsgSize           }, /* Message too long */
360     { EPROTOTYPE,      osl_Socket_E_Prototype         }, /* Protocol wrong type for socket */
361     { ENOPROTOOPT,     osl_Socket_E_NoProtocol        }, /* Protocol not available */
362     { EPROTONOSUPPORT, osl_Socket_E_ProtocolNoSupport }, /* Protocol not supported */
363     { ESOCKTNOSUPPORT, osl_Socket_E_TypeNoSupport     }, /* Socket type not supported */
364     { EOPNOTSUPP,      osl_Socket_E_OpNotSupport      }, /* Operation not supported on socket */
365     { EPFNOSUPPORT,    osl_Socket_E_PfNoSupport       }, /* Protocol family not supported */
366     { EAFNOSUPPORT,    osl_Socket_E_AfNoSupport       }, /* Address family not supported by */
367                                                          /* protocol family */
368     { EADDRINUSE,      osl_Socket_E_AddrInUse         }, /* Address already in use */
369     { EADDRNOTAVAIL,   osl_Socket_E_AddrNotAvail      }, /* Can't assign requested address */
370     { ENETDOWN,        osl_Socket_E_NetDown           }, /* Network is down */
371     { ENETUNREACH,     osl_Socket_E_NetUnreachable    }, /* Network is unreachable */
372     { ENETRESET,       osl_Socket_E_NetReset          }, /* Network dropped connection because */
373                                                          /* of reset */
374     { ECONNABORTED,    osl_Socket_E_ConnAborted       }, /* Software caused connection abort */
375     { ECONNRESET,      osl_Socket_E_ConnReset         }, /* Connection reset by peer */
376     { ENOBUFS,         osl_Socket_E_NoBufferSpace     }, /* No buffer space available */
377     { EISCONN,         osl_Socket_E_IsConnected       }, /* Socket is already connected */
378     { ENOTCONN,        osl_Socket_E_NotConnected      }, /* Socket is not connected */
379     { ESHUTDOWN,       osl_Socket_E_Shutdown          }, /* Can't send after socket shutdown */
380     { ETOOMANYREFS,    osl_Socket_E_TooManyRefs       }, /* Too many references: can't splice */
381     { ETIMEDOUT,       osl_Socket_E_TimedOut          }, /* Connection timed out */
382     { ECONNREFUSED,    osl_Socket_E_ConnRefused       }, /* Connection refused */
383     { EHOSTDOWN,       osl_Socket_E_HostDown          }, /* Host is down */
384     { EHOSTUNREACH,    osl_Socket_E_HostUnreachable   }, /* No route to host */
385     { EWOULDBLOCK,     osl_Socket_E_WouldBlock        }, /* call would block on non-blocking socket */
386     { EALREADY,        osl_Socket_E_Already           }, /* operation already in progress */
387     { EINPROGRESS,     osl_Socket_E_InProgress        }, /* operation now in progress */
388     { EAGAIN,          osl_Socket_E_WouldBlock        }, /* same as EWOULDBLOCK */
389     { -1,              osl_Socket_E_InvalidError      }
390 };
391 
392 /* map */
393 /* mfe: NOT USED
394 static int osl_NativeFromSocketError(oslSocketError errorCode)
395 {
396     int i = 0;
397 
398     while ((SocketError[i].error != osl_Socket_E_InvalidError) &&
399            (SocketError[i].error != errorCode)) i++;
400 
401     return SocketError[i].errcode;
402 }
403 */
404 
405 /* reverse map */
406 static oslSocketError osl_SocketErrorFromNative(int nativeType)
407 {
408     int i = 0;
409 
410     while ((SocketError[i].error != osl_Socket_E_InvalidError) &&
411            (SocketError[i].errcode != nativeType)) i++;
412 
413     return SocketError[i].error;
414 }
415 
416 /* macros */
417 #define ERROR_TO_NATIVE(x)      osl_NativeFromSocketError(x)
418 #define ERROR_FROM_NATIVE(y)    osl_SocketErrorFromNative(y)
419 
420 /*****************************************************************************/
421 /* local function prototypes */
422 /*****************************************************************************/
423 
424 oslSocketAddr SAL_CALL osl_psz_createInetSocketAddr (
425     const sal_Char* pszDottedAddr, sal_Int32 Port);
426 
427 oslSocketAddr SAL_CALL osl_psz_createIpxSocketAddr (
428     const sal_Char NetNumber[4],
429     const sal_Char NodeNumber[6],
430     sal_uInt32 SocketNumber);
431 
432 oslHostAddr SAL_CALL osl_psz_createHostAddr (
433     const sal_Char *pszHostname, const oslSocketAddr Addr);
434 
435 oslHostAddr SAL_CALL osl_psz_createHostAddrByName (
436     const sal_Char *pszHostname);
437 
438 const sal_Char* SAL_CALL osl_psz_getHostnameOfHostAddr (
439     const oslHostAddr Addr);
440 
441 oslSocketResult SAL_CALL osl_psz_getLocalHostname (
442     sal_Char *pBuffer, sal_uInt32 nBufLen);
443 
444 oslSocketAddr SAL_CALL osl_psz_resolveHostname (
445     const sal_Char* pszHostname);
446 
447 sal_Int32 SAL_CALL osl_psz_getServicePort (
448     const sal_Char* pszServicename, const sal_Char* pszProtocol);
449 
450 oslSocketResult SAL_CALL osl_psz_getHostnameOfSocketAddr (
451     oslSocketAddr Addr, sal_Char *pBuffer, sal_uInt32 BufferSize);
452 
453 oslSocketResult SAL_CALL osl_psz_getDottedInetAddrOfSocketAddr (
454     oslSocketAddr Addr, sal_Char *pBuffer, sal_uInt32 BufferSize);
455 
456 void SAL_CALL osl_psz_getLastSocketErrorDescription (
457     oslSocket Socket, sal_Char* pBuffer, sal_uInt32 BufferSize);
458 
459 /*****************************************************************************/
460 /* osl_create/destroy-SocketImpl */
461 /*****************************************************************************/
462 
463 #if OSL_DEBUG_LEVEL > 1
464 static sal_uInt32 g_nSocketImpl = 0;
465 static sal_uInt32 g_nSocketAddr = 0;
466 
467 /* sorry, must be implemented otherwise */
468 #if 0
469 struct LeakWarning
470 {
471     ~LeakWarning()
472     {
473         if( g_nSocketImpl )
474             OSL_TRACE( "sal_socket: %d socket instances leak\n" , g_nSocketImpl );
475         if( g_nSocketAddr )
476             OSL_TRACE( "sal_socket: %d socket address instances leak\n" , g_nSocketAddr );
477     }
478 };
479 LeakWarning socketWarning;
480 #endif
481 
482 #endif /* OSL_DEBUG_LEVEL */
483 
484 
485 oslSocket __osl_createSocketImpl(int Socket)
486 {
487     oslSocket pSocket;
488 
489     pSocket = (oslSocket)calloc(1, sizeof(struct oslSocketImpl));
490 
491     pSocket->m_Socket = Socket;
492     pSocket->m_nLastError = 0;
493     pSocket->m_CloseCallback = 0;
494     pSocket->m_CallbackArg = 0;
495     pSocket->m_nRefCount = 1;
496 
497 #if defined(LINUX)
498     pSocket->m_bIsAccepting = sal_False;
499 #endif
500 
501 #if OSL_DEBUG_LEVEL > 1
502     g_nSocketImpl ++;
503 #endif
504     return pSocket;
505 }
506 
507 void __osl_destroySocketImpl(oslSocket Socket)
508 {
509     if ( Socket != NULL)
510         free((struct oslSocketImpl *) Socket);
511 #if OSL_DEBUG_LEVEL > 1
512     g_nSocketImpl --;
513 #endif
514 }
515 
516 static oslSocketAddr __osl_createSocketAddr(  )
517 {
518     oslSocketAddr pAddr = (oslSocketAddr) rtl_allocateZeroMemory( sizeof( struct oslSocketAddrImpl ));
519 #if OSL_DEBUG_LEVEL > 1
520     g_nSocketAddr ++;
521 #endif
522     return pAddr;
523 }
524 
525 static oslSocketAddr __osl_createSocketAddrWithFamily(
526     oslAddrFamily family, sal_Int32 port, sal_uInt32 nAddr )
527 {
528     oslSocketAddr pAddr;
529 
530     OSL_ASSERT( family == osl_Socket_FamilyInet );
531 
532     pAddr = __osl_createSocketAddr();
533     switch( family )
534     {
535     case osl_Socket_FamilyInet:
536     {
537         struct sockaddr_in* pInetAddr= (struct sockaddr_in*)&(pAddr->m_sockaddr);
538 
539         pInetAddr->sin_family = FAMILY_TO_NATIVE(osl_Socket_FamilyInet);
540         pInetAddr->sin_addr.s_addr = nAddr;
541         pInetAddr->sin_port = (sal_uInt16)(port&0xffff);
542         break;
543     }
544     default:
545         pAddr->m_sockaddr.sa_family = FAMILY_TO_NATIVE(family);
546     }
547     return pAddr;
548 }
549 
550 static oslSocketAddr __osl_createSocketAddrFromSystem( struct sockaddr *pSystemSockAddr )
551 {
552     oslSocketAddr pAddr = __osl_createSocketAddr();
553     memcpy( &(pAddr->m_sockaddr), pSystemSockAddr, sizeof( struct sockaddr ) );
554     return pAddr;
555 }
556 
557 static void __osl_destroySocketAddr( oslSocketAddr addr )
558 {
559 #if OSL_DEBUG_LEVEL > 1
560     g_nSocketAddr --;
561 #endif
562     rtl_freeMemory( addr );
563 }
564 
565 /*****************************************************************************/
566 /* osl_createEmptySocketAddr */
567 /*****************************************************************************/
568 oslSocketAddr SAL_CALL osl_createEmptySocketAddr(oslAddrFamily Family)
569 {
570     oslSocketAddr pAddr = 0;
571 
572     /* is it an internet-Addr? */
573     if (Family == osl_Socket_FamilyInet)
574     {
575         pAddr = __osl_createSocketAddrWithFamily(Family, 0 , htonl(INADDR_ANY) );
576     }
577     else
578     {
579         pAddr = __osl_createSocketAddrWithFamily( Family , 0 , 0 );
580     }
581 
582     return pAddr;
583 }
584 
585 /*****************************************************************************/
586 /* osl_copySocketAddr */
587 /*****************************************************************************/
588 oslSocketAddr SAL_CALL osl_copySocketAddr(oslSocketAddr Addr)
589 {
590     oslSocketAddr pCopy = 0;
591     if (Addr)
592     {
593         pCopy = __osl_createSocketAddr();
594 
595         if (pCopy)
596             memcpy(&(pCopy->m_sockaddr),&(Addr->m_sockaddr), sizeof(struct sockaddr));
597     }
598     return pCopy;
599 }
600 
601 /*****************************************************************************/
602 /* osl_isEqualSocketAddr */
603 /*****************************************************************************/
604 sal_Bool SAL_CALL osl_isEqualSocketAddr (
605     oslSocketAddr Addr1,
606     oslSocketAddr Addr2)
607 {
608     OSL_ASSERT((0 != Addr1) && (0 != Addr2));
609     if ((0 != Addr1) || (0 != Addr2))
610     {
611       struct sockaddr* pAddr1= &(Addr1->m_sockaddr);
612       struct sockaddr* pAddr2= &(Addr2->m_sockaddr);
613 
614       if (pAddr1->sa_family == pAddr2->sa_family)
615       {
616           switch (pAddr1->sa_family)
617           {
618             case AF_INET:
619             {
620                 struct sockaddr_in* pInetAddr1= (struct sockaddr_in*)pAddr1;
621                 struct sockaddr_in* pInetAddr2= (struct sockaddr_in*)pAddr2;
622 
623                 if ((pInetAddr1->sin_family == pInetAddr2->sin_family) &&
624                     (pInetAddr1->sin_addr.s_addr == pInetAddr2->sin_addr.s_addr) &&
625                     (pInetAddr1->sin_port == pInetAddr2->sin_port))
626                   return (sal_True);
627             }
628 
629             default:
630             {
631                 return (memcmp(pAddr1, pAddr2, sizeof(struct sockaddr)) == 0);
632             }
633           }
634       }
635     }
636     return (sal_False);
637 }
638 
639 /*****************************************************************************/
640 /* osl_createInetBroadcastAddr */
641 /*****************************************************************************/
642 oslSocketAddr SAL_CALL osl_createInetBroadcastAddr (
643     rtl_uString *strDottedAddr,
644     sal_Int32    Port)
645 {
646     sal_uInt32    nAddr = OSL_INADDR_NONE;
647     oslSocketAddr pAddr;
648 
649     if (strDottedAddr && strDottedAddr->length)
650     {
651         /* Dotted host address for limited broadcast */
652         rtl_String *pDottedAddr = NULL;
653 
654         rtl_uString2String (
655             &pDottedAddr, strDottedAddr->buffer, strDottedAddr->length,
656             RTL_TEXTENCODING_UTF8, OUSTRING_TO_OSTRING_CVTFLAGS);
657 
658         nAddr = inet_addr (pDottedAddr->buffer);
659         rtl_string_release (pDottedAddr);
660     }
661 
662     if (nAddr != OSL_INADDR_NONE)
663     {
664         /* Limited broadcast */
665         nAddr = ntohl(nAddr);
666         if (IN_CLASSA(nAddr))
667         {
668             nAddr &= IN_CLASSA_NET;
669             nAddr |= IN_CLASSA_HOST;
670         }
671         else if (IN_CLASSB(nAddr))
672         {
673             nAddr &= IN_CLASSB_NET;
674             nAddr |= IN_CLASSB_HOST;
675         }
676         else if (IN_CLASSC(nAddr))
677         {
678             nAddr &= IN_CLASSC_NET;
679             nAddr |= IN_CLASSC_HOST;
680         }
681         else
682         {
683             /* No broadcast in class D */
684             return ((oslSocketAddr)NULL);
685         }
686         nAddr = htonl(nAddr);
687     }
688 
689     pAddr = __osl_createSocketAddrWithFamily( osl_Socket_FamilyInet, htons(Port), nAddr );
690     return pAddr;
691 }
692 
693 /*****************************************************************************/
694 /* osl_createInetSocketAddr */
695 /*****************************************************************************/
696 oslSocketAddr SAL_CALL osl_createInetSocketAddr (
697     rtl_uString *ustrDottedAddr,
698     sal_Int32    Port)
699 {
700     rtl_String* strDottedAddr=0;
701     oslSocketAddr Addr;
702     sal_Char* pszDottedAddr=0;
703 
704     if ( ustrDottedAddr != 0 )
705     {
706         rtl_uString2String( &strDottedAddr,
707                             rtl_uString_getStr(ustrDottedAddr),
708                             rtl_uString_getLength(ustrDottedAddr),
709                             RTL_TEXTENCODING_UTF8,
710                             OUSTRING_TO_OSTRING_CVTFLAGS);
711         pszDottedAddr = rtl_string_getStr(strDottedAddr);
712     }
713 
714 
715     Addr = osl_psz_createInetSocketAddr(pszDottedAddr, Port);
716 
717     if ( strDottedAddr != 0 )
718     {
719         rtl_string_release(strDottedAddr);
720     }
721 
722     return Addr;
723 }
724 
725 oslSocketAddr SAL_CALL osl_psz_createInetSocketAddr (
726     const sal_Char* pszDottedAddr,
727     sal_Int32       Port)
728 {
729     oslSocketAddr pAddr = 0;
730     sal_Int32 Addr = inet_addr(pszDottedAddr);
731     if(Addr != -1)
732     {
733         /* valid dotted addr */
734         pAddr = __osl_createSocketAddrWithFamily( osl_Socket_FamilyInet, htons(Port) , Addr );
735     }
736     return pAddr;
737 }
738 
739 /*****************************************************************************/
740 /* osl_setAddrOfSocketAddr */
741 /*****************************************************************************/
742 oslSocketResult SAL_CALL osl_setAddrOfSocketAddr( oslSocketAddr pAddr, sal_Sequence *pByteSeq )
743 {
744     oslSocketResult res = osl_Socket_Error;
745 
746     OSL_ASSERT( pAddr );
747     OSL_ASSERT( pByteSeq );
748 
749     if( pAddr && pByteSeq )
750     {
751         struct sockaddr_in * pSystemInetAddr;
752 
753         OSL_ASSERT( pAddr->m_sockaddr.sa_family == FAMILY_TO_NATIVE( osl_Socket_FamilyInet ) );
754         OSL_ASSERT( pByteSeq->nElements == 4 );
755 
756         pSystemInetAddr = (struct sockaddr_in * ) &(pAddr->m_sockaddr);
757         memcpy( &(pSystemInetAddr->sin_addr) , pByteSeq->elements , 4 );
758         res = osl_Socket_Ok;
759     }
760     return res;
761 }
762 
763 /*****************************************************************************/
764 /* osl_getAddrOfSocketAddr */
765 /*****************************************************************************/
766 oslSocketResult SAL_CALL osl_getAddrOfSocketAddr( oslSocketAddr pAddr, sal_Sequence **ppByteSeq )
767 {
768     oslSocketResult res = osl_Socket_Error;
769 
770     OSL_ASSERT( pAddr );
771     OSL_ASSERT( ppByteSeq );
772 
773     if( pAddr && ppByteSeq )
774     {
775         struct sockaddr_in * pSystemInetAddr = (struct sockaddr_in * ) &(pAddr->m_sockaddr);
776         rtl_byte_sequence_constructFromArray( ppByteSeq , (sal_Int8 *) &(pSystemInetAddr->sin_addr),4);
777         res = osl_Socket_Ok;
778     }
779     return res;
780 }
781 
782 
783 /*****************************************************************************/
784 /* _osl_getFullQualifiedDomainName */
785 /*****************************************************************************/
786 
787 /** try to figure out a full-qualified hostname, by adding the current domain
788     as given by the domainname program to the given hostname.
789     This function MUST NOT call gethostbyname since pHostName allready points
790     to data returned by gethostname and would be garbled: use gethostname_r
791     instead!
792  */
793 
794 /* wrap around different interfaces to reentrant gethostbyname */
795 static struct hostent* _osl_gethostbyname_r (
796     const char *name, struct hostent *result,
797     char *buffer, int buflen, int *h_errnop)
798 {
799 #if defined(LINUX) || (defined(FREEBSD) && (__FreeBSD_version >= 601103))
800     struct hostent *__result; /* will be the same as result */
801     int __error;
802     __error = gethostbyname_r (name, result, buffer, buflen,
803                  &__result, h_errnop);
804     return __error ? NULL : __result ;
805 #else
806     return gethostbyname_r( name, result, buffer, buflen, h_errnop);
807 #endif
808 }
809 
810 static sal_Bool  _osl_getDomainName (sal_Char *buffer, sal_Int32 bufsiz)
811 {
812     sal_Bool result;
813     int      p[2];
814 
815     result = sal_False;
816     if (pipe (p) == 0)
817     {
818         pid_t pid;
819         int nStatus;
820 
821         pid = fork();
822         if (pid == 0)
823         {
824             char *argv[] =
825             {
826                 "/bin/domainname",
827                 NULL
828             };
829 
830             close (p[0]);
831             dup2  (p[1], 1);
832             close (p[1]);
833 
834             execv ("/bin/domainname", argv);
835             // arriving here means exec failed
836             _exit(-1);
837         }
838         else if (pid > 0)
839         {
840             sal_Int32 k = 0, n = bufsiz;
841 
842             close (p[1]);
843             if ((k = read (p[0], buffer, n - 1)) > 0)
844             {
845                 buffer[k] = 0;
846                 if (buffer[k - 1] == '\n')
847                     buffer[k - 1] = 0;
848                 result = sal_True;
849             }
850             close (p[0]);
851             waitpid (pid, &nStatus, 0);
852         }
853         else
854         {
855             close (p[0]);
856             close (p[1]);
857         }
858     }
859     return (result);
860 }
861 
862 static sal_Char* _osl_getFullQualifiedDomainName (const sal_Char *pHostName)
863 {
864 #   define DOMAINNAME_LENGTH 512
865     sal_uInt32          nLengthOfHostName;
866     static sal_uInt32   nLengthOfDomainName = 0;
867     static sal_Char    *pDomainName = NULL;
868 
869     sal_Char  *pFullQualifiedName;
870 #if 0  /* OBSOLETE */
871     FILE      *pPipeToDomainnameExe;
872 #endif /* OBSOLETE */
873 
874     /* get a '\0' terminated domainname */
875 
876     /* read default domainname default from environment */
877     if (nLengthOfDomainName == 0)
878     {
879         sal_Char *pEnvDomain;
880 
881         pEnvDomain = getenv ("STAR_OVERRIDE_DOMAINNAME");
882         if (pEnvDomain)
883         {
884             pDomainName = strdup (pEnvDomain);
885             nLengthOfDomainName = strlen (pDomainName);
886         }
887     }
888 
889 #if 1  /* NEW */
890     if (nLengthOfDomainName == 0)
891     {
892         sal_Char pDomainNameBuffer[ DOMAINNAME_LENGTH ];
893 
894         pDomainNameBuffer[0] = '\0';
895 
896         if (_osl_getDomainName (pDomainNameBuffer, DOMAINNAME_LENGTH))
897         {
898             pDomainName = strdup (pDomainNameBuffer);
899             nLengthOfDomainName = strlen (pDomainName);
900         }
901     }
902 
903 #endif /* NEW */
904 #if 0  /* OBSOLETE */
905 #ifdef SCO
906 
907     /* call 'domainname > /usr/tmp/some-tmp-file', since
908        popen read pclose do block or core-dump,
909        (even the pipe-stuff that comes with pthreads) */
910     if (nLengthOfDomainName == 0)
911     {
912         sal_Char  tmp_name[ L_tmpnam ];
913         FILE     *tmp_file;
914         sal_Char  domain_call [ L_tmpnam + 16 ] = "domainname > ";
915 
916         tmp_name[0] = '\0';
917 
918         tmpnam ( tmp_name );
919         strcat ( domain_call, tmp_name );
920         if (   (system ( domain_call ) == 0)
921             && ((tmp_file = fopen( tmp_name, "r" )) != NULL ) )
922         {
923             sal_Char  pDomainNameBuffer[ DOMAINNAME_LENGTH ];
924 
925             pDomainNameBuffer[0] = '\0';
926 
927             if ( fgets ( pDomainNameBuffer, DOMAINNAME_LENGTH, tmp_file ) )
928             {
929                 pDomainName = strdup( pDomainNameBuffer );
930                 nLengthOfDomainName = strlen( pDomainName );
931                 if (   ( nLengthOfDomainName > 0 )
932                     && ( pDomainName[ nLengthOfDomainName - 1] == '\n' ) )
933                     pDomainName[ --nLengthOfDomainName ] = '\0';
934             }
935             fclose ( tmp_file );
936         }
937         unlink( tmp_name );
938     }
939 
940 #else /* !SCO */
941 
942     /* read the domainname from pipe to the program domainname */
943     if (   (nLengthOfDomainName == 0)
944         && (pPipeToDomainnameExe = popen( "domainname", "r")) )
945     {
946         sal_Char  c;
947         sal_Char  pDomainNameBuffer[ DOMAINNAME_LENGTH ];
948         sal_Char *pDomainNamePointer;
949 
950         pDomainNameBuffer[0] = '\0';
951 
952         pDomainNamePointer = pDomainNameBuffer;
953         while (    ((c = getc( pPipeToDomainnameExe )) != EOF)
954                 && (nLengthOfDomainName < (DOMAINNAME_LENGTH - 1)) )
955         {
956             if (! isspace(c))
957             {
958                  nLengthOfDomainName++ ;
959                 *pDomainNamePointer++ = (sal_Char)c;
960             }
961         }
962         *pDomainNamePointer = '\0';
963         pDomainName = strdup( pDomainNameBuffer );
964 
965         pclose( pPipeToDomainnameExe );
966     }
967 
968 #endif /* !SCO */
969 #endif /* OBSOLETE */
970 
971     /* compose hostname and domainname */
972     nLengthOfHostName = strlen( pHostName );
973     pFullQualifiedName = (sal_Char*) malloc( (nLengthOfHostName + 1
974                             + nLengthOfDomainName + 1) * sizeof(sal_Char) );
975     memcpy( pFullQualifiedName, pHostName,
976         (nLengthOfHostName + 1) * sizeof(sal_Char) );
977 
978     if ( nLengthOfDomainName > 0 )
979     {
980         /* fqdn = hostname + '.' + domainname + '\0' */
981         pFullQualifiedName[ nLengthOfHostName ] = '.';
982         memcpy( pFullQualifiedName + nLengthOfHostName + 1, pDomainName,
983             nLengthOfDomainName + 1 );
984     }
985 
986     /* check whether full-qualified name and hostname point to the same host
987      * should almost always be true */
988     if ( nLengthOfDomainName > 0 )
989     {
990         struct hostent *pQualifiedHostByName;
991         struct hostent *pHostByName;
992         sal_Bool        bHostsAreEqual;
993 
994         /* buffer for calls to reentrant version of gethostbyname */
995         struct hostent  aHostByName, aQualifiedHostByName;
996         sal_Char        pHostBuffer[ MAX_HOSTBUFFER_SIZE ];
997         sal_Char        pQualifiedHostBuffer[ MAX_HOSTBUFFER_SIZE ];
998         int     nErrorNo;
999 
1000         pHostBuffer[0] = '\0';
1001         pQualifiedHostBuffer[0] = '\0';
1002 
1003         /* get list of addresses */
1004         pQualifiedHostByName = _osl_gethostbyname_r (
1005             pFullQualifiedName,
1006             &aQualifiedHostByName, pQualifiedHostBuffer,
1007             sizeof(pQualifiedHostBuffer), &nErrorNo );
1008         pHostByName = _osl_gethostbyname_r (
1009             pHostName,
1010             &aHostByName, pHostBuffer,
1011             sizeof(pHostBuffer), &nErrorNo );
1012 
1013         /* compare addresses */
1014         bHostsAreEqual = sal_False;
1015         if ( pQualifiedHostByName && pHostByName )
1016         {
1017             sal_Char **p, **q;
1018             struct in_addr in;
1019 
1020             /* lists are expected to be (very) short */
1021             for ( p = pQualifiedHostByName->h_addr_list; *p != NULL; p++ )
1022             {
1023                 for ( q = pHostByName->h_addr_list; *q != NULL; q++ )
1024                 {
1025                     /* in.s_addr may be in_addr_t or uint32_t or heaven knows */
1026                     if ( memcmp( *p, *q, sizeof(in.s_addr) ) == 0 )
1027                     {
1028                         bHostsAreEqual = sal_True;
1029                         break;
1030                     }
1031                 }
1032                 if ( bHostsAreEqual )
1033                     break;
1034             }
1035         }
1036 
1037         /* very strange case, but have to believe it: reduce the
1038          * full qualified name to the unqualified host name */
1039         if ( !bHostsAreEqual )
1040         {
1041             OSL_TRACE("_osl_getFullQualifiedDomainName: "
1042                       "suspect FQDN: %s\n", pFullQualifiedName);
1043 
1044             pFullQualifiedName[ nLengthOfHostName ] = '\0';
1045             pFullQualifiedName = (sal_Char*)realloc ( pFullQualifiedName,
1046                                 (nLengthOfHostName + 1) * sizeof( sal_Char ));
1047         }
1048     }
1049 
1050     /* always return a hostname looked up as carefully as possible
1051      * this string must be freed by the caller */
1052     return pFullQualifiedName;
1053 }
1054 
1055 /*****************************************************************************/
1056 /* _osl_isFullQualifiedDomainName */
1057 /*****************************************************************************/
1058 static sal_Bool _osl_isFullQualifiedDomainName (const sal_Char *pHostName)
1059 {
1060     /* a FQDN (aka 'hostname.domain.top_level_domain' )
1061      * is a name which contains a dot '.' in it ( would
1062      * match as well for 'hostname.' but is good enough
1063      * for now )*/
1064     return (sal_Bool)( strchr( pHostName, (int)'.' ) != NULL );
1065 }
1066 
1067 /*****************************************************************************/
1068 /* oslHostAddr */
1069 /*****************************************************************************/
1070 struct oslHostAddrImpl
1071 {
1072     sal_Char        *pHostName;
1073     oslSocketAddr   pSockAddr;
1074 };
1075 
1076 static oslHostAddr _osl_hostentToHostAddr (const struct hostent *he)
1077 {
1078     oslHostAddr pAddr= NULL;
1079     oslSocketAddr pSockAddr = 0;
1080 
1081     sal_Char        *cn;
1082 
1083     if ((he == NULL) || (he->h_name == NULL) || (he->h_addr_list[0] == NULL))
1084         return ((oslHostAddr)NULL);
1085 
1086     if (_osl_isFullQualifiedDomainName(he->h_name))
1087     {
1088         cn= (sal_Char *)malloc(strlen (he->h_name) + 1);
1089         OSL_ASSERT(cn);
1090         if (cn == NULL)
1091             return ((oslHostAddr)NULL);
1092 
1093         strcpy(cn, he->h_name);
1094     }
1095     else
1096     {
1097         cn =_osl_getFullQualifiedDomainName (he->h_name);
1098         OSL_ASSERT(cn);
1099         if (cn == NULL)
1100             return ((oslHostAddr)NULL);
1101     }
1102 
1103     pSockAddr = __osl_createSocketAddr();
1104     OSL_ASSERT(pSockAddr);
1105     if (pSockAddr == NULL)
1106     {
1107         free(cn);
1108         return ((oslHostAddr)NULL);
1109     }
1110 
1111     pSockAddr->m_sockaddr.sa_family= he->h_addrtype;
1112     if (pSockAddr->m_sockaddr.sa_family == FAMILY_TO_NATIVE(osl_Socket_FamilyInet))
1113     {
1114         struct sockaddr_in *sin= (struct sockaddr_in *)&(pSockAddr->m_sockaddr);
1115         memcpy (
1116             &(sin->sin_addr.s_addr),
1117             he->h_addr_list[0],
1118             he->h_length);
1119     }
1120     else
1121     {
1122         /* unknown address family */
1123         /* future extensions for new families might be implemented here */
1124 
1125         OSL_TRACE("_osl_hostentToHostAddr: unknown address family.\n");
1126         OSL_ASSERT(sal_False);
1127 
1128         __osl_destroySocketAddr( pSockAddr );
1129         free (cn);
1130         return ((oslHostAddr)NULL);
1131     }
1132 
1133     pAddr= (oslHostAddr) malloc(sizeof(struct oslHostAddrImpl));
1134     OSL_ASSERT(pAddr);
1135     if (pAddr == NULL)
1136     {
1137         __osl_destroySocketAddr( pSockAddr );
1138         free (cn);
1139         return ((oslHostAddr)NULL);
1140     }
1141 
1142     pAddr->pHostName= cn;
1143     pAddr->pSockAddr= pSockAddr;
1144 
1145     return pAddr;
1146 }
1147 
1148 /*****************************************************************************/
1149 /* osl_createHostAddr */
1150 /*****************************************************************************/
1151 oslHostAddr SAL_CALL osl_createHostAddr (
1152     rtl_uString        *ustrHostname,
1153     const oslSocketAddr Addr)
1154 {
1155     oslHostAddr HostAddr;
1156     rtl_String* strHostname=0;
1157     sal_Char* pszHostName=0;
1158 
1159     if ( ustrHostname != 0 )
1160     {
1161         rtl_uString2String( &strHostname,
1162                             rtl_uString_getStr(ustrHostname),
1163                             rtl_uString_getLength(ustrHostname),
1164                             RTL_TEXTENCODING_UTF8,
1165                             OUSTRING_TO_OSTRING_CVTFLAGS );
1166         pszHostName = rtl_string_getStr(strHostname);
1167     }
1168 
1169     HostAddr = osl_psz_createHostAddr(pszHostName,Addr);
1170 
1171     if ( strHostname != 0 )
1172     {
1173         rtl_string_release(strHostname);
1174     }
1175 
1176     return HostAddr;
1177 }
1178 
1179 oslHostAddr SAL_CALL osl_psz_createHostAddr (
1180     const sal_Char     *pszHostname,
1181     const oslSocketAddr pAddr)
1182 {
1183     oslHostAddr pHostAddr;
1184     sal_Char            *cn;
1185 
1186     OSL_ASSERT(pszHostname && pAddr);
1187     if ((pszHostname == NULL) || (pAddr == NULL))
1188         return ((oslHostAddr)NULL);
1189 
1190     cn = (sal_Char *)malloc(strlen (pszHostname) + 1);
1191     OSL_ASSERT(cn);
1192     if (cn == NULL)
1193         return ((oslHostAddr)NULL);
1194 
1195     strcpy (cn, pszHostname);
1196 
1197     pHostAddr= (oslHostAddr) malloc(sizeof(struct oslHostAddrImpl));
1198     OSL_ASSERT(pHostAddr);
1199     if (pHostAddr == NULL)
1200     {
1201         free (cn);
1202         return ((oslHostAddr)NULL);
1203     }
1204 
1205     pHostAddr->pHostName= cn;
1206     pHostAddr->pSockAddr= osl_copySocketAddr( pAddr );
1207 
1208     return pHostAddr;
1209 }
1210 
1211 /*****************************************************************************/
1212 /* osl_createHostAddrByName */
1213 /*****************************************************************************/
1214 oslHostAddr SAL_CALL osl_createHostAddrByName(rtl_uString *ustrHostname)
1215 {
1216     oslHostAddr HostAddr;
1217     rtl_String* strHostname=0;
1218     sal_Char* pszHostName=0;
1219 
1220     if ( ustrHostname != 0 )
1221     {
1222         rtl_uString2String( &strHostname,
1223                             rtl_uString_getStr(ustrHostname),
1224                             rtl_uString_getLength(ustrHostname),
1225                             RTL_TEXTENCODING_UTF8,
1226                             OUSTRING_TO_OSTRING_CVTFLAGS );
1227         pszHostName=rtl_string_getStr(strHostname);
1228     }
1229 
1230     HostAddr = osl_psz_createHostAddrByName(pszHostName);
1231 
1232     if ( strHostname != 0 )
1233     {
1234         rtl_string_release(strHostname);
1235     }
1236 
1237     return HostAddr;
1238 }
1239 
1240 oslHostAddr SAL_CALL osl_psz_createHostAddrByName (const sal_Char *pszHostname)
1241 {
1242     struct hostent *he;
1243         oslHostAddr addr;
1244 
1245     static oslMutex mutex = NULL;
1246 
1247     if (mutex == NULL)
1248         mutex = osl_createMutex();
1249 
1250     osl_acquireMutex(mutex);
1251 
1252     he = gethostbyname((sal_Char *)pszHostname);
1253     addr = _osl_hostentToHostAddr (he);
1254 
1255     osl_releaseMutex(mutex);
1256 
1257     return addr;
1258 }
1259 
1260 /*****************************************************************************/
1261 /* osl_createHostAddrByAddr */
1262 /*****************************************************************************/
1263 oslHostAddr SAL_CALL osl_createHostAddrByAddr (const oslSocketAddr pAddr)
1264 {
1265     OSL_ASSERT(pAddr);
1266 
1267     if (pAddr == NULL)
1268         return ((oslHostAddr)NULL);
1269 
1270     if (pAddr->m_sockaddr.sa_family == FAMILY_TO_NATIVE(osl_Socket_FamilyInet))
1271     {
1272         const struct sockaddr_in *sin= (const struct sockaddr_in *)&(pAddr->m_sockaddr);
1273         struct hostent *he;
1274 
1275         if (sin->sin_addr.s_addr == htonl(INADDR_ANY))
1276             return ((oslHostAddr)NULL);
1277 
1278         he= gethostbyaddr((sal_Char *)&(sin->sin_addr),
1279                           sizeof (sin->sin_addr),
1280                           sin->sin_family);
1281         return _osl_hostentToHostAddr (he);
1282     }
1283 
1284     return ((oslHostAddr)NULL);
1285 }
1286 
1287 /*****************************************************************************/
1288 /* osl_copyHostAddr */
1289 /*****************************************************************************/
1290 oslHostAddr SAL_CALL osl_copyHostAddr (const oslHostAddr pAddr)
1291 {
1292     OSL_ASSERT(pAddr);
1293 
1294     if (pAddr)
1295         return osl_psz_createHostAddr (pAddr->pHostName, pAddr->pSockAddr);
1296     else
1297         return ((oslHostAddr)NULL);
1298 }
1299 
1300 /*****************************************************************************/
1301 /* osl_getHostnameOfHostAddr */
1302 /*****************************************************************************/
1303 void SAL_CALL osl_getHostnameOfHostAddr (
1304     const oslHostAddr   Addr,
1305     rtl_uString       **ustrHostname)
1306 {
1307     const sal_Char* pHostname=0;
1308 
1309     pHostname = osl_psz_getHostnameOfHostAddr(Addr);
1310 
1311     rtl_uString_newFromAscii (ustrHostname, pHostname);
1312 
1313     return;
1314 }
1315 
1316 const sal_Char* SAL_CALL osl_psz_getHostnameOfHostAddr (const oslHostAddr pAddr)
1317 {
1318     OSL_ASSERT(pAddr);
1319 
1320     if (pAddr)
1321         return pAddr->pHostName;
1322     else
1323         return NULL;
1324 }
1325 
1326 /*****************************************************************************/
1327 /* osl_getSocketAddrOfHostAddr */
1328 /*****************************************************************************/
1329 oslSocketAddr SAL_CALL osl_getSocketAddrOfHostAddr (const oslHostAddr pAddr)
1330 {
1331     OSL_ASSERT(pAddr);
1332 
1333     if (pAddr)
1334         return ((oslSocketAddr)(pAddr->pSockAddr));
1335     else
1336         return NULL;
1337 }
1338 
1339 /*****************************************************************************/
1340 /* osl_destroyHostAddr */
1341 /*****************************************************************************/
1342 void SAL_CALL osl_destroyHostAddr (oslHostAddr pAddr)
1343 {
1344     if (pAddr)
1345     {
1346         if (pAddr->pHostName)
1347             free (pAddr->pHostName);
1348         if (pAddr->pSockAddr)
1349             osl_destroySocketAddr (pAddr->pSockAddr);
1350         free (pAddr);
1351     }
1352 }
1353 
1354 /*****************************************************************************/
1355 /* osl_getLocalHostname */
1356 /*****************************************************************************/
1357 oslSocketResult SAL_CALL osl_getLocalHostname(rtl_uString **ustrLocalHostname)
1358 {
1359     oslSocketResult Result;
1360     sal_Char pszHostname[1024];
1361 
1362     pszHostname[0] = '\0';
1363 
1364     Result = osl_psz_getLocalHostname(pszHostname,sizeof(pszHostname));
1365 
1366     rtl_uString_newFromAscii(ustrLocalHostname,pszHostname);
1367 
1368     return Result;
1369 }
1370 
1371 oslSocketResult SAL_CALL osl_psz_getLocalHostname (
1372     sal_Char *pBuffer, sal_uInt32 nBufLen)
1373 {
1374     static sal_Char LocalHostname[256] = "";
1375 
1376     if (strlen(LocalHostname) == 0)
1377     {
1378         const sal_Char *pStr;
1379 
1380 #ifdef SYSV
1381         struct utsname uts;
1382 
1383         if (uname(&uts) < 0)
1384             return osl_Socket_Error;
1385 
1386         if ((strlen(uts.nodename) + 1) > nBufLen)
1387             return osl_Socket_Error;
1388 
1389         strncpy(LocalHostname, uts.nodename, sizeof( LocalHostname ));
1390 #else  /* BSD compatible */
1391 
1392         if (gethostname(LocalHostname, sizeof(LocalHostname)-1) != 0)
1393             return osl_Socket_Error;
1394         LocalHostname[sizeof(LocalHostname)-1] = 0;
1395 #endif /* SYSV */
1396 
1397         /* check if we have an FQDN */
1398         if (strchr(LocalHostname, '.') == NULL)
1399         {
1400             oslHostAddr Addr;
1401 
1402             /* no, determine it via dns */
1403             Addr = osl_psz_createHostAddrByName(LocalHostname);
1404 
1405             if ((pStr = osl_psz_getHostnameOfHostAddr(Addr)) != NULL)
1406             {
1407 #if 0  /* OBSOLETE */
1408                 sal_Char* pChr;
1409 #endif /* OBSOLETE */
1410                 strcpy(LocalHostname, pStr);
1411 
1412 #if 0  /* OBSOLETE */
1413                 /* already done by _osl_getFullQualifiedDomainName() with
1414                    much better heuristics, so this may be contraproductive */
1415 
1416                 /* no FQDN, last try append domain name */
1417                 if ((pChr = strchr(LocalHostname, '.')) == NULL)
1418                 {
1419                     FILE *fp;
1420 
1421                     pChr = &LocalHostname[strlen(LocalHostname)];
1422 
1423                     if ( (fp = popen("domainname", "r")) != 0 )
1424                     {
1425                         int c;
1426 
1427                         *pChr++ = '.';
1428 
1429                         while ((c = getc(fp)) != EOF)
1430                         {
1431                             if (! isspace(c))
1432                                 *pChr++ = (sal_Char)c;
1433                         }
1434 
1435                         *pChr = '\0';
1436 
1437                         fclose(fp);
1438                     }
1439                     else
1440                         LocalHostname[0] = '\0';
1441                 }
1442 #endif /* OBSOLETE */
1443 
1444             }
1445             osl_destroyHostAddr(Addr);
1446         }
1447     }
1448 
1449     if (strlen(LocalHostname) > 0)
1450     {
1451         strncpy(pBuffer, LocalHostname, nBufLen);
1452         pBuffer[nBufLen - 1] = '\0';
1453 
1454         return osl_Socket_Ok;
1455     }
1456 
1457     return osl_Socket_Error;
1458 }
1459 
1460 /*****************************************************************************/
1461 /* osl_resolveHostname */
1462 /*****************************************************************************/
1463 oslSocketAddr SAL_CALL osl_resolveHostname(rtl_uString *ustrHostname)
1464 {
1465     oslSocketAddr Addr;
1466     rtl_String* strHostname=0;
1467     sal_Char* pszHostName=0;
1468 
1469     if ( ustrHostname != 0 )
1470     {
1471         rtl_uString2String( &strHostname,
1472                             rtl_uString_getStr(ustrHostname),
1473                             rtl_uString_getLength(ustrHostname),
1474                             RTL_TEXTENCODING_UTF8,
1475                             OUSTRING_TO_OSTRING_CVTFLAGS );
1476         pszHostName = rtl_string_getStr(strHostname);
1477     }
1478 
1479 
1480     Addr = osl_psz_resolveHostname(pszHostName);
1481 
1482     if ( strHostname != 0 )
1483     {
1484         rtl_string_release(strHostname);
1485     }
1486 
1487 
1488     return Addr;
1489 }
1490 
1491 
1492 oslSocketAddr SAL_CALL osl_psz_resolveHostname(const sal_Char* pszHostname)
1493 {
1494     struct oslHostAddrImpl *pAddr = (oslHostAddr)osl_psz_createHostAddrByName(pszHostname);
1495 
1496     if (pAddr)
1497     {
1498         oslSocketAddr SockAddr = osl_copySocketAddr(pAddr->pSockAddr);
1499 
1500         osl_destroyHostAddr(pAddr);
1501 
1502         return (SockAddr);
1503     }
1504 
1505     return ((oslSocketAddr)NULL);
1506 }
1507 
1508 /*****************************************************************************/
1509 /* osl_getServicePort */
1510 /*****************************************************************************/
1511 sal_Int32 SAL_CALL osl_getServicePort(rtl_uString *ustrServicename, rtl_uString *ustrProtocol)
1512 {
1513     sal_Int32 nPort;
1514     rtl_String* strServicename=0;
1515     rtl_String* strProtocol=0;
1516     sal_Char* pszServiceName=0;
1517     sal_Char* pszProtocol=0;
1518 
1519     if ( ustrServicename != 0 )
1520     {
1521         rtl_uString2String( &strServicename,
1522                             rtl_uString_getStr(ustrServicename),
1523                             rtl_uString_getLength(ustrServicename),
1524                             RTL_TEXTENCODING_UTF8,
1525                             OUSTRING_TO_OSTRING_CVTFLAGS );
1526         pszServiceName = rtl_string_getStr(strServicename);
1527     }
1528 
1529     if ( ustrProtocol != 0 )
1530     {
1531         rtl_uString2String( &strProtocol,
1532                             rtl_uString_getStr(ustrProtocol),
1533                             rtl_uString_getLength(ustrProtocol),
1534                             RTL_TEXTENCODING_UTF8,
1535                             OUSTRING_TO_OSTRING_CVTFLAGS );
1536         pszProtocol = rtl_string_getStr(strProtocol);
1537     }
1538 
1539     nPort = osl_psz_getServicePort(pszServiceName,pszProtocol);
1540 
1541     if ( strServicename != 0 )
1542     {
1543         rtl_string_release(strServicename);
1544     }
1545 
1546     if ( strProtocol != 0 )
1547     {
1548         rtl_string_release(strProtocol);
1549     }
1550 
1551 
1552     return nPort;
1553 }
1554 
1555 
1556 sal_Int32 SAL_CALL osl_psz_getServicePort(const sal_Char* pszServicename,
1557                         const sal_Char* pszProtocol)
1558 {
1559     struct servent* ps;
1560 
1561     ps= getservbyname(pszServicename, pszProtocol);
1562 
1563     if (ps != 0)
1564         return ntohs(ps->s_port);
1565 
1566     return OSL_INVALID_PORT;
1567 }
1568 
1569 /*****************************************************************************/
1570 /* osl_destroySocketAddr */
1571 /*****************************************************************************/
1572 void SAL_CALL osl_destroySocketAddr(oslSocketAddr pAddr)
1573 {
1574     __osl_destroySocketAddr( pAddr );
1575 }
1576 
1577 /*****************************************************************************/
1578 /* osl_getFamilyOfSocketAddr */
1579 /*****************************************************************************/
1580 oslAddrFamily SAL_CALL osl_getFamilyOfSocketAddr(oslSocketAddr pAddr)
1581 {
1582     OSL_ASSERT(pAddr);
1583 
1584     if (pAddr)
1585         return FAMILY_FROM_NATIVE(pAddr->m_sockaddr.sa_family);
1586     else
1587         return osl_Socket_FamilyInvalid;
1588 }
1589 
1590 /*****************************************************************************/
1591 /* osl_getInetPortOfSocketAddr */
1592 /*****************************************************************************/
1593 sal_Int32 SAL_CALL osl_getInetPortOfSocketAddr(oslSocketAddr pAddr)
1594 {
1595     OSL_ASSERT(pAddr);
1596     if( pAddr )
1597     {
1598         struct sockaddr_in* pSystemInetAddr= (struct sockaddr_in*)&(pAddr->m_sockaddr);
1599 
1600         if ( pSystemInetAddr->sin_family == FAMILY_TO_NATIVE(osl_Socket_FamilyInet))
1601             return ntohs(pSystemInetAddr->sin_port);
1602     }
1603     return OSL_INVALID_PORT;
1604 }
1605 
1606 /*****************************************************************************/
1607 /* osl_setInetPortOfSocketAddr */
1608 /*****************************************************************************/
1609 sal_Bool SAL_CALL osl_setInetPortOfSocketAddr(oslSocketAddr pAddr, sal_Int32 Port)
1610 {
1611     OSL_ASSERT(pAddr);
1612     if( pAddr )
1613     {
1614         struct sockaddr_in* pSystemInetAddr= (struct sockaddr_in*)&(pAddr->m_sockaddr);
1615         if ( pSystemInetAddr->sin_family == FAMILY_TO_NATIVE(osl_Socket_FamilyInet))
1616         {
1617             pSystemInetAddr->sin_port= htons((short)Port);
1618             return sal_True;
1619         }
1620     }
1621 
1622     /* this is not a inet-addr => can't set port */
1623     return sal_False;
1624 }
1625 
1626 /*****************************************************************************/
1627 /* osl_getHostnameOfSocketAddr */
1628 /*****************************************************************************/
1629 oslSocketResult SAL_CALL osl_getHostnameOfSocketAddr(oslSocketAddr Addr, rtl_uString **ustrHostname)
1630 {
1631     oslSocketResult Result;
1632     sal_Char pszHostname[1024];
1633 
1634     pszHostname[0] = '\0';
1635 
1636     Result = osl_psz_getHostnameOfSocketAddr(Addr,pszHostname,sizeof(pszHostname));
1637 
1638     rtl_uString_newFromAscii(ustrHostname,pszHostname);
1639 
1640     return Result;
1641 }
1642 
1643 
1644 oslSocketResult SAL_CALL osl_psz_getHostnameOfSocketAddr(oslSocketAddr pAddr,
1645                                             sal_Char *pBuffer, sal_uInt32 BufferSize)
1646 {
1647     oslHostAddr pHostAddr= (oslHostAddr )osl_createHostAddrByAddr(pAddr);
1648 
1649     if (pHostAddr)
1650     {
1651         strncpy(pBuffer, pHostAddr->pHostName, BufferSize);
1652 
1653         pBuffer[BufferSize - 1] = '\0';
1654 
1655         osl_destroyHostAddr(pHostAddr);
1656 
1657         return osl_Socket_Ok;
1658     }
1659 
1660     return osl_Socket_Error;
1661 }
1662 
1663 /*****************************************************************************/
1664 /* osl_getDottedInetAddrOfSocketAddr */
1665 /*****************************************************************************/
1666 oslSocketResult SAL_CALL osl_getDottedInetAddrOfSocketAddr(oslSocketAddr Addr, rtl_uString **ustrDottedInetAddr)
1667 {
1668     oslSocketResult Result;
1669     sal_Char pszDottedInetAddr[1024];
1670 
1671     pszDottedInetAddr[0] = '\0';
1672 
1673     Result = osl_psz_getDottedInetAddrOfSocketAddr(Addr,pszDottedInetAddr,sizeof(pszDottedInetAddr));
1674 
1675     rtl_uString_newFromAscii(ustrDottedInetAddr,pszDottedInetAddr);
1676 
1677     return Result;
1678 
1679 }
1680 
1681 oslSocketResult SAL_CALL osl_psz_getDottedInetAddrOfSocketAddr(oslSocketAddr pAddr,
1682                                                   sal_Char *pBuffer, sal_uInt32 BufferSize)
1683 {
1684     OSL_ASSERT(pAddr);
1685 
1686     if( pAddr )
1687     {
1688         struct sockaddr_in* pSystemInetAddr = ( struct sockaddr_in * ) &(pAddr->m_sockaddr);
1689 
1690         if (pSystemInetAddr->sin_family == FAMILY_TO_NATIVE(osl_Socket_FamilyInet))
1691         {
1692             strncpy(pBuffer, inet_ntoa(pSystemInetAddr->sin_addr), BufferSize);
1693             pBuffer[BufferSize - 1] = '\0';
1694 
1695             return osl_Socket_Ok;
1696         }
1697     }
1698 
1699     return osl_Socket_Error;
1700 }
1701 
1702 #if 0  /* OBSOLETE */
1703 /*****************************************************************************/
1704 /* osl_getIpxNetNumber  */
1705 /*****************************************************************************/
1706 oslSocketResult SAL_CALL osl_getIpxNetNumber(oslSocketAddr Addr,
1707                                     oslSocketIpxNetNumber NetNumber)
1708 
1709 {
1710     struct sockaddr_ipx* pAddr;
1711 
1712     pAddr= (struct sockaddr_ipx*)Addr;
1713 
1714     OSL_ASSERT(pAddr);
1715 
1716     if (pAddr && (pAddr->sa_family == FAMILY_TO_NATIVE(osl_Socket_FamilyIpx)))
1717     {
1718         memcpy(NetNumber, pAddr->sa_netnum, sizeof(NetNumber));
1719 
1720         return osl_Socket_Ok;
1721     }
1722     else
1723         return osl_Socket_Error;
1724 }
1725 
1726 
1727 /*****************************************************************************/
1728 /* osl_getIpxNodeNumber  */
1729 /*****************************************************************************/
1730 oslSocketResult SAL_CALL osl_getIpxNodeNumber(oslSocketAddr Addr,
1731                                      oslSocketIpxNodeNumber NodeNumber)
1732 
1733 {
1734     struct sockaddr_ipx* pAddr;
1735 
1736     pAddr= (struct sockaddr_ipx*)Addr;
1737 
1738     OSL_ASSERT(pAddr);
1739 
1740     if (pAddr && (pAddr->sa_family == FAMILY_TO_NATIVE(osl_Socket_FamilyIpx)))
1741     {
1742         memcpy(NodeNumber, pAddr->sa_nodenum, sizeof(NodeNumber));
1743 
1744         return osl_Socket_Ok;
1745     }
1746     else
1747         return osl_Socket_Error;
1748 }
1749 
1750 
1751 /*****************************************************************************/
1752 /* osl_getIpxSocketNumber  */
1753 /*****************************************************************************/
1754 sal_Int32 SAL_CALL osl_getIpxSocketNumber(oslSocketAddr Addr)
1755 {
1756     struct sockaddr_ipx* pAddr= (struct sockaddr_ipx*)Addr;
1757     OSL_ASSERT(pAddr);
1758 
1759     if (pAddr && (pAddr->sa_family == FAMILY_TO_NATIVE(osl_Socket_FamilyIpx)))
1760         return pAddr->sa_socket;
1761     else
1762         return OSL_INVALID_IPX_SOCKET_NO;
1763 }
1764 
1765 #endif /* OBSOLETE */
1766 
1767 /*****************************************************************************/
1768 /* osl_createSocket  */
1769 /*****************************************************************************/
1770 oslSocket SAL_CALL osl_createSocket(oslAddrFamily   Family,
1771                            oslSocketType    Type,
1772                            oslProtocol      Protocol)
1773 {
1774     int            Flags;
1775     oslSocket pSocket;
1776 
1777     /* alloc memory */
1778     pSocket= __osl_createSocketImpl(OSL_INVALID_SOCKET);
1779 
1780     /* create socket */
1781     pSocket->m_Socket= socket(FAMILY_TO_NATIVE(Family),
1782                                 TYPE_TO_NATIVE(Type),
1783                                 PROTOCOL_TO_NATIVE(Protocol));
1784 
1785     /* creation failed => free memory */
1786     if(pSocket->m_Socket == OSL_INVALID_SOCKET)
1787     {
1788         OSL_TRACE("osl_createSocket failed. Errno: %d; %s\n",
1789                   errno,
1790                   strerror(errno));
1791 
1792         __osl_destroySocketImpl((pSocket));
1793         pSocket= 0;
1794     }
1795     else
1796     {
1797         /* set close-on-exec flag */
1798         if ((Flags = fcntl(pSocket->m_Socket, F_GETFD, 0)) != -1)
1799         {
1800             Flags |= FD_CLOEXEC;
1801             if (fcntl(pSocket->m_Socket, F_SETFD, Flags) == -1)
1802             {
1803                 pSocket->m_nLastError=errno;
1804                 OSL_TRACE("osl_createSocket failed changing socket flags. Errno: %d; %s\n",
1805                           errno,
1806                           strerror(errno));
1807             }
1808         }
1809         else
1810         {
1811             pSocket->m_nLastError=errno;
1812         }
1813 
1814 
1815         pSocket->m_CloseCallback    = NULL;
1816         pSocket->m_CallbackArg  = NULL;
1817     }
1818 
1819     return pSocket;
1820 }
1821 
1822 void SAL_CALL osl_acquireSocket(oslSocket pSocket)
1823 {
1824     osl_incrementInterlockedCount( &(pSocket->m_nRefCount ) );
1825 }
1826 
1827 void SAL_CALL osl_releaseSocket( oslSocket pSocket )
1828 {
1829     if( pSocket && 0 == osl_decrementInterlockedCount( &(pSocket->m_nRefCount) ) )
1830     {
1831 #if defined(LINUX)
1832     if ( pSocket->m_bIsAccepting == sal_True )
1833     {
1834         OSL_ENSURE(0, "osl_destroySocket : attempt to destroy socket while accepting\n");
1835         return;
1836     }
1837 #endif /* LINUX */
1838         osl_closeSocket( pSocket );
1839         __osl_destroySocketImpl( pSocket );
1840     }
1841 }
1842 
1843 
1844 
1845 /*****************************************************************************/
1846 /* osl_closeSocket  */
1847 /*****************************************************************************/
1848 void SAL_CALL osl_closeSocket(oslSocket pSocket)
1849 {
1850     int nRet;
1851     int nFD;
1852 
1853     /* socket already invalid */
1854     if(pSocket==0)
1855         return;
1856 
1857     pSocket->m_nLastError=0;
1858     nFD = pSocket->m_Socket;
1859 
1860     if (nFD == OSL_INVALID_SOCKET)
1861         return;
1862 
1863     pSocket->m_Socket = OSL_INVALID_SOCKET;
1864 
1865 #if defined(LINUX)
1866     pSocket->m_bIsInShutdown = sal_True;
1867 
1868     if ( pSocket->m_bIsAccepting == sal_True )
1869     {
1870         int nConnFD;
1871         union {
1872             struct sockaddr aSockAddr;
1873             struct sockaddr_in aSockAddrIn;
1874         } s;
1875         socklen_t nSockLen = sizeof(s.aSockAddr);
1876 
1877         nRet = getsockname(nFD, &s.aSockAddr, &nSockLen);
1878 #if OSL_DEBUG_LEVEL > 1
1879         if ( nRet < 0 )
1880         {
1881             perror("getsockname");
1882         }
1883 #endif /* OSL_DEBUG_LEVEL */
1884 
1885         if ( s.aSockAddr.sa_family == AF_INET )
1886         {
1887             if ( s.aSockAddrIn.sin_addr.s_addr == htonl(INADDR_ANY) )
1888             {
1889                 s.aSockAddrIn.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
1890             }
1891 
1892             nConnFD = socket(AF_INET, SOCK_STREAM, 0);
1893 #if OSL_DEBUG_LEVEL > 1
1894             if ( nConnFD < 0 )
1895             {
1896                 perror("socket");
1897             }
1898 #endif /* OSL_DEBUG_LEVEL */
1899 
1900             nRet = connect(nConnFD, &s.aSockAddr, sizeof(s.aSockAddr));
1901 #if OSL_DEBUG_LEVEL > 1
1902             if ( nRet < 0 )
1903             {
1904                 perror("connect");
1905             }
1906 #endif /* OSL_DEBUG_LEVEL */
1907             close(nConnFD);
1908         }
1909         pSocket->m_bIsAccepting = sal_False;
1910     }
1911 #endif /* LINUX */
1912 
1913     /* registrierten Callback ausfuehren */
1914     if (pSocket->m_CloseCallback != NULL)
1915     {
1916         pSocket->m_CloseCallback(pSocket->m_CallbackArg);
1917     }
1918 
1919     nRet=close(nFD);
1920     if ( nRet != 0 )
1921     {
1922         pSocket->m_nLastError=errno;
1923         OSL_TRACE("closeSocket close error '%s'\n",strerror(errno));
1924     }
1925 
1926     pSocket->m_Socket = OSL_INVALID_SOCKET;
1927 }
1928 
1929 /*****************************************************************************/
1930 /* osl_getLocalAddrOfSocket  */
1931 /* Note that I rely on the fact that oslSocketAddr and struct sockaddr */
1932 /* are the same! I don't like it very much but see no other easy way to conceal */
1933 /* the struct sockaddr from the eyes of the user. */
1934 /*****************************************************************************/
1935 oslSocketAddr SAL_CALL osl_getLocalAddrOfSocket(oslSocket pSocket)
1936 {
1937     socklen_t AddrLen;
1938     struct sockaddr Addr;
1939     oslSocketAddr  pAddr;
1940 
1941     if (pSocket == NULL) /* ENOTSOCK */
1942         return ((oslSocketAddr)NULL);
1943 
1944     AddrLen= sizeof(struct sockaddr);
1945 
1946     if (getsockname(pSocket->m_Socket, &Addr, &AddrLen) == OSL_SOCKET_ERROR)
1947         return ((oslSocketAddr)NULL);
1948 
1949     pAddr = __osl_createSocketAddrFromSystem( &Addr );
1950     return pAddr;
1951 }
1952 
1953 /*****************************************************************************/
1954 /* osl_getPeerAddrOfSocket  */
1955 /*****************************************************************************/
1956 oslSocketAddr SAL_CALL osl_getPeerAddrOfSocket(oslSocket pSocket)
1957 {
1958     socklen_t AddrLen;
1959     struct sockaddr Addr;
1960 
1961     OSL_ASSERT(pSocket);
1962     if ( pSocket == 0 )
1963     {
1964         return 0;
1965     }
1966 
1967     pSocket->m_nLastError=0;
1968     AddrLen= sizeof(struct sockaddr);
1969 
1970     if(getpeername(pSocket->m_Socket, &Addr, &AddrLen) == OSL_SOCKET_ERROR)
1971     {
1972         pSocket->m_nLastError=errno;
1973         return 0;
1974     }
1975     return __osl_createSocketAddrFromSystem( &Addr );
1976 }
1977 
1978 /*****************************************************************************/
1979 /* osl_bindAddrToSocket  */
1980 /*****************************************************************************/
1981 sal_Bool SAL_CALL osl_bindAddrToSocket(oslSocket pSocket,
1982                              oslSocketAddr pAddr)
1983 {
1984     int nRet;
1985 
1986     OSL_ASSERT(pSocket && pAddr );
1987     if ( pSocket == 0 || pAddr == 0 )
1988     {
1989         return sal_False;
1990     }
1991 
1992     pSocket->m_nLastError=0;
1993 
1994     nRet = bind(pSocket->m_Socket, &(pAddr->m_sockaddr), sizeof(struct sockaddr));
1995 
1996     if ( nRet == OSL_SOCKET_ERROR)
1997     {
1998         pSocket->m_nLastError=errno;
1999         return sal_False;
2000     }
2001 
2002     return sal_True;
2003 }
2004 
2005 
2006 /*****************************************************************************/
2007 /* osl_listenOnSocket  */
2008 /*****************************************************************************/
2009 sal_Bool SAL_CALL osl_listenOnSocket(oslSocket pSocket,
2010                            sal_Int32 MaxPendingConnections)
2011 {
2012     int nRet;
2013 
2014     OSL_ASSERT(pSocket);
2015     if ( pSocket == 0 )
2016     {
2017         return sal_False;
2018     }
2019 
2020     pSocket->m_nLastError=0;
2021 
2022     nRet = listen(pSocket->m_Socket,
2023                   MaxPendingConnections == -1 ?
2024                   SOMAXCONN :
2025                   MaxPendingConnections);
2026     if ( nRet == OSL_SOCKET_ERROR)
2027     {
2028         pSocket->m_nLastError=errno;
2029         return sal_False;
2030     }
2031 
2032     return sal_True;
2033 }
2034 
2035 
2036 /*****************************************************************************/
2037 /* osl_connectSocketTo  */
2038 /*****************************************************************************/
2039 oslSocketResult SAL_CALL osl_connectSocketTo(oslSocket pSocket,
2040                                     oslSocketAddr pAddr,
2041                                     const TimeValue* pTimeout)
2042 {
2043     fd_set   WriteSet;
2044     fd_set   ExcptSet;
2045     int      ReadyHandles;
2046     struct timeval  tv;
2047     oslSocketResult Result= osl_Socket_Ok;
2048 
2049     OSL_PRECOND(pSocket, "osl_connectSocketTo(): need a valid socket!\n");
2050 
2051     if ( pSocket == 0 )
2052     {
2053         return osl_Socket_Error;
2054     }
2055 
2056     pSocket->m_nLastError=0;
2057 
2058     if (osl_isNonBlockingMode(pSocket))
2059     {
2060         if (connect(pSocket->m_Socket,
2061                     &(pAddr->m_sockaddr),
2062                     sizeof(struct sockaddr)) != OSL_SOCKET_ERROR)
2063             return osl_Socket_Ok;
2064         else
2065             if (errno == EWOULDBLOCK || errno == EINPROGRESS)
2066             {
2067                 pSocket->m_nLastError=EINPROGRESS;
2068                 return osl_Socket_InProgress;
2069             }
2070 
2071 
2072         pSocket->m_nLastError=errno;
2073         OSL_TRACE("can't connect : '%s'",strerror(errno));
2074         return osl_Socket_Error;
2075     }
2076 
2077     /* set socket temporarily to non-blocking */
2078     OSL_VERIFY(osl_enableNonBlockingMode(pSocket, sal_True));
2079 
2080     /* initiate connect */
2081     if(connect(pSocket->m_Socket,
2082                &(pAddr->m_sockaddr),
2083                sizeof(struct sockaddr)) != OSL_SOCKET_ERROR)
2084     {
2085        /* immediate connection */
2086         osl_enableNonBlockingMode(pSocket, sal_False);
2087 
2088         return osl_Socket_Ok;
2089     }
2090     else
2091     {
2092         /* really an error or just delayed? */
2093         if (errno != EINPROGRESS)
2094         {
2095             pSocket->m_nLastError=errno;
2096             OSL_TRACE(
2097                 "osl_connectSocketTo(): connect failed: errno: %d (%s)\n",
2098                 errno, strerror(errno));
2099 
2100             osl_enableNonBlockingMode(pSocket, sal_False);
2101             return osl_Socket_Error;
2102         }
2103     }
2104 
2105 
2106     /* prepare select set for socket  */
2107     FD_ZERO(&WriteSet);
2108     FD_ZERO(&ExcptSet);
2109     FD_SET(pSocket->m_Socket, &WriteSet);
2110     FD_SET(pSocket->m_Socket, &ExcptSet);
2111 
2112     /* prepare timeout */
2113     if (pTimeout)
2114     {
2115         /* divide milliseconds into seconds and microseconds */
2116         tv.tv_sec=  pTimeout->Seconds;
2117         tv.tv_usec= pTimeout->Nanosec / 1000L;
2118     }
2119 
2120     /* select */
2121     ReadyHandles= select(pSocket->m_Socket+1,
2122                          0,
2123                          PTR_FD_SET(WriteSet),
2124                          PTR_FD_SET(ExcptSet),
2125                          (pTimeout) ? &tv : 0);
2126 
2127     if (ReadyHandles > 0)  /* connected */
2128     {
2129         if ( FD_ISSET(pSocket->m_Socket, &WriteSet ) )
2130         {
2131             int nErrorCode = 0;
2132             socklen_t nErrorSize = sizeof( nErrorCode );
2133 
2134             int nSockOpt;
2135 
2136             nSockOpt = getsockopt ( pSocket->m_Socket, SOL_SOCKET, SO_ERROR,
2137                                     &nErrorCode, &nErrorSize );
2138             if ( (nSockOpt == 0) && (nErrorCode == 0))
2139                 Result = osl_Socket_Ok;
2140             else
2141                 Result = osl_Socket_Error;
2142         }
2143         else
2144         {
2145             Result= osl_Socket_Error;
2146         }
2147     }
2148     else if (ReadyHandles < 0)  /* error */
2149     {
2150         if (errno == EBADF) /* most probably interrupted by close() */
2151         {
2152             /* do not access pSockImpl because it is about to be or */
2153             /* already destroyed */
2154             return osl_Socket_Interrupted;
2155         }
2156         else
2157         {
2158             pSocket->m_nLastError=errno;
2159             Result= osl_Socket_Error;
2160         }
2161     }
2162     else    /* timeout */
2163     {
2164         pSocket->m_nLastError=errno;
2165         Result= osl_Socket_TimedOut;
2166     }
2167 
2168     osl_enableNonBlockingMode(pSocket, sal_False);
2169 
2170     return Result;
2171 }
2172 
2173 
2174 /*****************************************************************************/
2175 /* osl_acceptConnectionOnSocket  */
2176 /*****************************************************************************/
2177 oslSocket SAL_CALL osl_acceptConnectionOnSocket(oslSocket pSocket,
2178                         oslSocketAddr* ppAddr)
2179 {
2180     struct sockaddr Addr;
2181     int Connection, Flags;
2182     oslSocket pConnectionSockImpl;
2183 
2184     socklen_t AddrLen = sizeof(struct sockaddr);
2185     OSL_ASSERT(pSocket);
2186     if ( pSocket == 0 )
2187     {
2188         return 0;
2189     }
2190 
2191     pSocket->m_nLastError=0;
2192 #if defined(LINUX)
2193     pSocket->m_bIsAccepting = sal_True;
2194 #endif /* LINUX */
2195 
2196     if( ppAddr && *ppAddr )
2197     {
2198         osl_destroySocketAddr( *ppAddr );
2199         *ppAddr = 0;
2200     }
2201 
2202     /* prevent Linux EINTR behaviour */
2203     do
2204     {
2205         Connection = accept(pSocket->m_Socket, &Addr, &AddrLen);
2206     } while (Connection == -1 && errno == EINTR);
2207 
2208 
2209     /* accept failed? */
2210     if( Connection == OSL_SOCKET_ERROR )
2211     {
2212         pSocket->m_nLastError=errno;
2213         OSL_TRACE("osl_acceptConnectionOnSocket : accept error '%s'\n",strerror(errno));
2214 
2215 #if defined(LINUX)
2216         pSocket->m_bIsAccepting = sal_False;
2217 #endif /* LINUX */
2218         return 0;
2219     }
2220 
2221     OSL_ASSERT(AddrLen == sizeof(struct sockaddr));
2222 
2223 
2224 #if defined(LINUX)
2225     if ( pSocket->m_bIsInShutdown == sal_True )
2226     {
2227         close(Connection);
2228         OSL_TRACE("osl_acceptConnectionOnSocket : close while accept\n");
2229         return 0;
2230     }
2231 #endif /* LINUX */
2232 
2233 
2234     if(ppAddr)
2235     {
2236         *ppAddr= __osl_createSocketAddrFromSystem(&Addr);
2237     }
2238 
2239     /* alloc memory */
2240     pConnectionSockImpl= __osl_createSocketImpl(OSL_INVALID_SOCKET);
2241 
2242     /* set close-on-exec flag */
2243     if ((Flags = fcntl(Connection, F_GETFD, 0)) != -1)
2244     {
2245         Flags |= FD_CLOEXEC;
2246         if (fcntl(Connection, F_SETFD, Flags) == -1)
2247         {
2248             pSocket->m_nLastError=errno;
2249             OSL_TRACE("osl_acceptConnectionOnSocket failed changing socket flags. Errno: %d (%s)\n",
2250                       errno,
2251                       strerror(errno));
2252         }
2253 
2254     }
2255 
2256     pConnectionSockImpl->m_Socket           = Connection;
2257     pConnectionSockImpl->m_nLastError       = 0;
2258     pConnectionSockImpl->m_CloseCallback    = NULL;
2259     pConnectionSockImpl->m_CallbackArg      = NULL;
2260 #if defined(LINUX)
2261     pConnectionSockImpl->m_bIsAccepting     = sal_False;
2262 
2263     pSocket->m_bIsAccepting = sal_False;
2264 #endif /* LINUX */
2265     return pConnectionSockImpl;
2266 }
2267 
2268 /*****************************************************************************/
2269 /* osl_receiveSocket  */
2270 /*****************************************************************************/
2271 sal_Int32 SAL_CALL osl_receiveSocket(oslSocket pSocket,
2272                           void* pBuffer,
2273                           sal_uInt32 BytesToRead,
2274                           oslSocketMsgFlag Flag)
2275 {
2276     int nRead;
2277 
2278     OSL_ASSERT(pSocket);
2279     if ( pSocket == 0 )
2280     {
2281         OSL_TRACE("osl_receiveSocket : Invalid socket");
2282         return -1;
2283     }
2284 
2285     pSocket->m_nLastError=0;
2286 
2287     do
2288     {
2289         nRead =  recv(pSocket->m_Socket,
2290                       (sal_Char*)pBuffer,
2291                       BytesToRead,
2292                       MSG_FLAG_TO_NATIVE(Flag));
2293     } while ( nRead < 0 && errno == EINTR );
2294 
2295     if ( nRead < 0 )
2296     {
2297         pSocket->m_nLastError=errno;
2298         OSL_TRACE("osl_receiveSocket failed : %i '%s'",nRead,strerror(errno));
2299     }
2300     else if ( nRead == 0 )
2301     {
2302         OSL_TRACE("osl_receiveSocket failed : %i '%s'",nRead,"EOL");
2303     }
2304 
2305     return nRead;
2306 }
2307 
2308 
2309 /*****************************************************************************/
2310 /* osl_receiveFromSocket  */
2311 /*****************************************************************************/
2312 sal_Int32 SAL_CALL osl_receiveFromSocket(oslSocket pSocket,
2313                               oslSocketAddr pSenderAddr,
2314                               void* pBuffer,
2315                               sal_uInt32 BufferSize,
2316                               oslSocketMsgFlag Flag)
2317 {
2318     int nRead;
2319     struct sockaddr *pSystemSockAddr = 0;
2320     socklen_t AddrLen = 0;
2321     if( pSenderAddr )
2322     {
2323         AddrLen = sizeof( struct sockaddr );
2324         pSystemSockAddr = &(pSenderAddr->m_sockaddr);
2325     }
2326 
2327     OSL_ASSERT(pSocket);
2328     if ( pSocket == 0 )
2329     {
2330         OSL_TRACE("osl_receiveFromSocket : Invalid socket");
2331         return -1;
2332     }
2333 
2334     pSocket->m_nLastError=0;
2335 
2336     nRead = recvfrom(pSocket->m_Socket,
2337                      (sal_Char*)pBuffer,
2338                      BufferSize,
2339                      MSG_FLAG_TO_NATIVE(Flag),
2340                      pSystemSockAddr,
2341                      &AddrLen);
2342 
2343     if ( nRead < 0 )
2344     {
2345         pSocket->m_nLastError=errno;
2346         OSL_TRACE("osl_receiveFromSocket failed : %i '%s'",nRead,strerror(errno));
2347     }
2348     else if ( nRead == 0 )
2349     {
2350         OSL_TRACE("osl_receiveSocket failed : %i '%s'",nRead,"EOL");
2351     }
2352 
2353     return nRead;
2354 }
2355 
2356 
2357 /*****************************************************************************/
2358 /* osl_sendSocket  */
2359 /*****************************************************************************/
2360 sal_Int32 SAL_CALL osl_sendSocket(oslSocket pSocket,
2361                        const void* pBuffer,
2362                        sal_uInt32 BytesToSend,
2363                        oslSocketMsgFlag Flag)
2364 {
2365     int nWritten;
2366 
2367     OSL_ASSERT(pSocket);
2368     if ( pSocket == 0 )
2369     {
2370         OSL_TRACE("osl_sendSocket : Invalid socket");
2371         return -1;
2372     }
2373 
2374     pSocket->m_nLastError=0;
2375 
2376     do
2377     {
2378         nWritten = send(pSocket->m_Socket,
2379                         (sal_Char*)pBuffer,
2380                         BytesToSend,
2381                         MSG_FLAG_TO_NATIVE(Flag));
2382     } while ( nWritten < 0 && errno == EINTR );
2383 
2384 
2385     if ( nWritten < 0 )
2386     {
2387         pSocket->m_nLastError=errno;
2388         OSL_TRACE("osl_sendSocket failed : %i '%s'",nWritten,strerror(errno));
2389     }
2390     else if ( nWritten == 0 )
2391     {
2392         OSL_TRACE("osl_sendSocket failed : %i '%s'",nWritten,"EOL");
2393     }
2394 
2395     return nWritten;
2396 }
2397 
2398 /*****************************************************************************/
2399 /* osl_sendToSocket  */
2400 /*****************************************************************************/
2401 sal_Int32 SAL_CALL osl_sendToSocket(oslSocket pSocket,
2402                          oslSocketAddr ReceiverAddr,
2403                          const void* pBuffer,
2404                          sal_uInt32 BytesToSend,
2405                          oslSocketMsgFlag Flag)
2406 {
2407     int nWritten;
2408 
2409     struct sockaddr *pSystemSockAddr = 0;
2410     int AddrLen = 0;
2411     if( ReceiverAddr )
2412     {
2413         pSystemSockAddr = &(ReceiverAddr->m_sockaddr);
2414         AddrLen = sizeof( struct sockaddr );
2415     }
2416 
2417     OSL_ASSERT(pSocket);
2418     if ( pSocket == 0 )
2419     {
2420         OSL_TRACE("osl_sendToSocket : Invalid socket");
2421         return -1;
2422     }
2423 
2424     pSocket->m_nLastError=0;
2425 
2426     /* ReceiverAddr might be 0 when used on a connected socket. */
2427     /* Then sendto should behave like send. */
2428 
2429     nWritten = sendto(pSocket->m_Socket,
2430                       (sal_Char*)pBuffer,
2431                       BytesToSend,
2432                       MSG_FLAG_TO_NATIVE(Flag),
2433                       pSystemSockAddr,
2434                       AddrLen);
2435 
2436     if ( nWritten < 0 )
2437     {
2438         pSocket->m_nLastError=errno;
2439         OSL_TRACE("osl_sendToSocket failed : %i '%s'",nWritten,strerror(errno));
2440     }
2441     else if ( nWritten == 0 )
2442     {
2443         OSL_TRACE("osl_sendToSocket failed : %i '%s'",nWritten,"EOL");
2444     }
2445 
2446     return nWritten;
2447 }
2448 
2449 /*****************************************************************************/
2450 /* osl_readSocket  */
2451 /*****************************************************************************/
2452 sal_Int32 SAL_CALL osl_readSocket (
2453     oslSocket pSocket, void *pBuffer, sal_Int32 n )
2454 {
2455     sal_uInt8 * Ptr = (sal_uInt8 *)pBuffer;
2456     sal_uInt32 BytesRead= 0;
2457     sal_uInt32 BytesToRead= n;
2458 
2459     OSL_ASSERT( pSocket);
2460 
2461     /* loop until all desired bytes were read or an error occured */
2462     while (BytesToRead > 0)
2463     {
2464         sal_Int32 RetVal;
2465         RetVal= osl_receiveSocket(pSocket,
2466                                    Ptr,
2467                                    BytesToRead,
2468                                    osl_Socket_MsgNormal);
2469 
2470         /* error occured? */
2471         if(RetVal <= 0)
2472         {
2473             break;
2474         }
2475 
2476         BytesToRead -= RetVal;
2477         BytesRead += RetVal;
2478         Ptr += RetVal;
2479     }
2480 
2481     return BytesRead;
2482 }
2483 
2484 /*****************************************************************************/
2485 /* osl_writeSocket  */
2486 /*****************************************************************************/
2487 sal_Int32 SAL_CALL osl_writeSocket(
2488     oslSocket pSocket, const void *pBuffer, sal_Int32 n )
2489 {
2490     /* loop until all desired bytes were send or an error occured */
2491     sal_uInt32 BytesSend= 0;
2492     sal_uInt32 BytesToSend= n;
2493     sal_uInt8 *Ptr = ( sal_uInt8 * )pBuffer;
2494 
2495     OSL_ASSERT( pSocket );
2496 
2497     while (BytesToSend > 0)
2498     {
2499         sal_Int32 RetVal;
2500 
2501         RetVal= osl_sendSocket( pSocket,Ptr,BytesToSend,osl_Socket_MsgNormal);
2502 
2503         /* error occured? */
2504         if(RetVal <= 0)
2505         {
2506             break;
2507         }
2508 
2509         BytesToSend -= RetVal;
2510         BytesSend += RetVal;
2511         Ptr += RetVal;
2512 
2513     }
2514     return BytesSend;
2515 }
2516 
2517 /*****************************************************************************/
2518 /* __osl_socket_poll */
2519 /*****************************************************************************/
2520 
2521 #ifdef HAVE_POLL_H /* poll() */
2522 
2523 sal_Bool __osl_socket_poll (
2524     oslSocket        pSocket,
2525     const TimeValue* pTimeout,
2526     short            nEvent)
2527 {
2528     struct pollfd fds;
2529     int           timeout;
2530     int           result;
2531 
2532     OSL_ASSERT(0 != pSocket);
2533     if (0 == pSocket)
2534       return sal_False; /* EINVAL */
2535 
2536     pSocket->m_nLastError = 0;
2537 
2538     fds.fd      = pSocket->m_Socket;
2539     fds.events  = nEvent;
2540     fds.revents = 0;
2541 
2542     timeout = -1;
2543     if (pTimeout)
2544     {
2545         /* Convert to [ms] */
2546         timeout  = pTimeout->Seconds * 1000;
2547         timeout += pTimeout->Nanosec / (1000 * 1000);
2548     }
2549 
2550     result = poll (&fds, 1, timeout);
2551     if (result < 0)
2552     {
2553         pSocket->m_nLastError = errno;
2554         OSL_TRACE("__osl_socket_poll(): poll error: %d (%s)",
2555                   errno, strerror(errno));
2556         return sal_False;
2557     }
2558     if (result == 0)
2559     {
2560         /* Timeout */
2561         return sal_False;
2562     }
2563 
2564     return ((fds.revents & nEvent) == nEvent);
2565 }
2566 
2567 #else  /* select() */
2568 
2569 sal_Bool __osl_socket_poll (
2570     oslSocket        pSocket,
2571     const TimeValue* pTimeout,
2572     short            nEvent)
2573 {
2574     fd_set         fds;
2575     struct timeval tv;
2576     int            result;
2577 
2578     OSL_ASSERT(0 != pSocket);
2579     if (0 == pSocket)
2580       return sal_False; /* EINVAL */
2581 
2582     pSocket->m_nLastError = 0;
2583 
2584     FD_ZERO(&fds);
2585     FD_SET(pSocket->m_Socket, &fds);
2586 
2587     if (pTimeout)
2588     {
2589         /* Convert to 'timeval' */
2590         tv.tv_sec  = pTimeout->Seconds;
2591         tv.tv_usec = pTimeout->Nanosec / 1000;
2592     }
2593 
2594     result = select (
2595         pSocket->m_Socket + 1,
2596         (nEvent == POLLIN ) ? PTR_FD_SET(fds) : NULL,
2597         (nEvent == POLLOUT) ? PTR_FD_SET(fds) : NULL,
2598         (nEvent == POLLPRI) ? PTR_FD_SET(fds) : NULL,
2599         (pTimeout)          ? &tv             : NULL);
2600 
2601     if (result < 0)
2602     {
2603         pSocket->m_nLastError = errno;
2604         OSL_TRACE("__osl_socket_poll(): select error: %d (%s)",
2605                   errno, strerror(errno));
2606         return sal_False;
2607     }
2608     if (result == 0)
2609     {
2610         /* Timeout */
2611         return sal_False;
2612     }
2613 
2614     return (FD_ISSET(pSocket->m_Socket, &fds) ? sal_True : sal_False);
2615 }
2616 
2617 #endif /* HAVE_POLL_H */
2618 
2619 /*****************************************************************************/
2620 /* osl_isReceiveReady  */
2621 /*****************************************************************************/
2622 sal_Bool SAL_CALL osl_isReceiveReady (
2623     oslSocket pSocket, const TimeValue* pTimeout)
2624 {
2625     OSL_ASSERT(pSocket);
2626     if (pSocket == NULL)
2627     {
2628         /* ENOTSOCK */
2629         return sal_False;
2630     }
2631 
2632     return __osl_socket_poll (pSocket, pTimeout, POLLIN);
2633 }
2634 
2635 /*****************************************************************************/
2636 /* osl_isSendReady  */
2637 /*****************************************************************************/
2638 sal_Bool SAL_CALL osl_isSendReady (
2639     oslSocket pSocket, const TimeValue* pTimeout)
2640 {
2641     OSL_ASSERT(pSocket);
2642     if (pSocket == NULL)
2643     {
2644         /* ENOTSOCK */
2645         return sal_False;
2646     }
2647 
2648     return __osl_socket_poll (pSocket, pTimeout, POLLOUT);
2649 }
2650 
2651 /*****************************************************************************/
2652 /* osl_isExceptionPending  */
2653 /*****************************************************************************/
2654 sal_Bool SAL_CALL osl_isExceptionPending (
2655     oslSocket pSocket, const TimeValue* pTimeout)
2656 {
2657     OSL_ASSERT(pSocket);
2658     if (pSocket == NULL)
2659     {
2660         /* ENOTSOCK */
2661         return sal_False;
2662     }
2663 
2664     return __osl_socket_poll (pSocket, pTimeout, POLLPRI);
2665 }
2666 
2667 /*****************************************************************************/
2668 /* osl_shutdownSocket  */
2669 /*****************************************************************************/
2670 sal_Bool SAL_CALL osl_shutdownSocket(oslSocket pSocket,
2671                            oslSocketDirection Direction)
2672 {
2673     int nRet;
2674 
2675     OSL_ASSERT(pSocket);
2676     if ( pSocket == 0 )
2677     {
2678         return sal_False;
2679     }
2680 
2681     pSocket->m_nLastError=0;
2682 
2683     nRet=shutdown(pSocket->m_Socket, DIRECTION_TO_NATIVE(Direction));
2684     if (nRet != 0 )
2685     {
2686         pSocket->m_nLastError=errno;
2687         OSL_TRACE("shutdown error '%s'\n",strerror(errno));
2688     }
2689     return (nRet==0);
2690 }
2691 
2692 
2693 /*****************************************************************************/
2694 /* osl_getSocketOption  */
2695 /*****************************************************************************/
2696 sal_Int32 SAL_CALL osl_getSocketOption(oslSocket pSocket,
2697                             oslSocketOptionLevel    Level,
2698                             oslSocketOption         Option,
2699                             void*                   pBuffer,
2700                             sal_uInt32                  BufferLen)
2701 {
2702     socklen_t nOptLen = (socklen_t) BufferLen;
2703 
2704     OSL_ASSERT(pSocket);
2705     if ( pSocket == 0 )
2706     {
2707         return -1;
2708     }
2709 
2710     pSocket->m_nLastError=0;
2711 
2712     if(getsockopt(pSocket->m_Socket,
2713                   OPTION_LEVEL_TO_NATIVE(Level),
2714                   OPTION_TO_NATIVE(Option),
2715                   (sal_Char*)pBuffer,
2716                   &nOptLen) == -1)
2717     {
2718         pSocket->m_nLastError=errno;
2719         return -1;
2720     }
2721 
2722     return BufferLen;
2723 }
2724 
2725 /*****************************************************************************/
2726 /* osl_setSocketOption  */
2727 /*****************************************************************************/
2728 sal_Bool SAL_CALL osl_setSocketOption(oslSocket pSocket,
2729                             oslSocketOptionLevel    Level,
2730                             oslSocketOption         Option,
2731                             void*                   pBuffer,
2732                             sal_uInt32                  BufferLen)
2733 {
2734     int nRet;
2735 
2736     OSL_ASSERT(pSocket);
2737     if ( pSocket == 0 )
2738     {
2739         return sal_False;
2740     }
2741 
2742     pSocket->m_nLastError=0;
2743 
2744     nRet = setsockopt(pSocket->m_Socket,
2745                       OPTION_LEVEL_TO_NATIVE(Level),
2746                       OPTION_TO_NATIVE(Option),
2747                       (sal_Char*)pBuffer,
2748                       BufferLen);
2749 
2750     if ( nRet < 0 )
2751     {
2752         pSocket->m_nLastError=errno;
2753         return sal_False;
2754     }
2755 
2756     return sal_True;
2757 }
2758 
2759 /*****************************************************************************/
2760 /* osl_enableNonBlockingMode  */
2761 /*****************************************************************************/
2762 sal_Bool SAL_CALL osl_enableNonBlockingMode(oslSocket pSocket,
2763                                   sal_Bool On)
2764 {
2765     int flags;
2766     int nRet;
2767 
2768     OSL_ASSERT(pSocket);
2769     if ( pSocket == 0 )
2770     {
2771         return sal_False;
2772     }
2773 
2774     pSocket->m_nLastError=0;
2775 
2776     flags = fcntl(pSocket->m_Socket, F_GETFL, 0);
2777 
2778     if (On)
2779         flags |= O_NONBLOCK;
2780     else
2781         flags &= ~(O_NONBLOCK);
2782 
2783     nRet = fcntl(pSocket->m_Socket, F_SETFL, flags);
2784 
2785     if  ( nRet < 0 )
2786     {
2787         pSocket->m_nLastError=errno;
2788         return sal_False;
2789     }
2790 
2791     return sal_True;
2792 }
2793 
2794 /*****************************************************************************/
2795 /* osl_isNonBlockingMode  */
2796 /*****************************************************************************/
2797 sal_Bool SAL_CALL osl_isNonBlockingMode(oslSocket pSocket)
2798 {
2799     int flags;
2800 
2801     OSL_ASSERT(pSocket);
2802     if ( pSocket == 0 )
2803     {
2804         return sal_False;
2805     }
2806 
2807     pSocket->m_nLastError=0;
2808 
2809     flags = fcntl(pSocket->m_Socket, F_GETFL, 0);
2810 
2811     if (flags == -1 || !(flags & O_NONBLOCK))
2812         return sal_False;
2813     else
2814         return sal_True;
2815 }
2816 
2817 /*****************************************************************************/
2818 /* osl_getSocketType  */
2819 /*****************************************************************************/
2820 oslSocketType SAL_CALL osl_getSocketType(oslSocket pSocket)
2821 {
2822     int Type=0;
2823     socklen_t TypeSize= sizeof(Type);
2824 
2825     OSL_ASSERT(pSocket);
2826     if ( pSocket == 0 )
2827     {
2828         return osl_Socket_TypeInvalid;
2829     }
2830 
2831     pSocket->m_nLastError=0;
2832 
2833     if(getsockopt(pSocket->m_Socket,
2834                   OPTION_LEVEL_TO_NATIVE(osl_Socket_LevelSocket),
2835                   OPTION_TO_NATIVE(osl_Socket_OptionType),
2836                   (sal_Char*)&Type,
2837                   &TypeSize) == -1)
2838     {
2839         /* error */
2840         pSocket->m_nLastError=errno;
2841         return osl_Socket_TypeInvalid;
2842     }
2843 
2844     return TYPE_FROM_NATIVE(Type);
2845 
2846 }
2847 
2848 /*****************************************************************************/
2849 /* osl_getLastSocketErrorDescription  */
2850 /*****************************************************************************/
2851 void SAL_CALL osl_getLastSocketErrorDescription(oslSocket Socket, rtl_uString **ustrError)
2852 {
2853     sal_Char pszError[1024];
2854 
2855     pszError[0] = '\0';
2856 
2857     osl_psz_getLastSocketErrorDescription(Socket,pszError,sizeof(pszError));
2858 
2859     rtl_uString_newFromAscii(ustrError,pszError);
2860 
2861     return;
2862 }
2863 
2864 
2865 void SAL_CALL osl_psz_getLastSocketErrorDescription(oslSocket pSocket, sal_Char* pBuffer, sal_uInt32 BufferSize)
2866 {
2867     /* make shure pBuffer will be a zero-terminated string even when strncpy has to cut */
2868     pBuffer[BufferSize-1]= '\0';
2869 
2870     if ( pSocket == 0 )
2871     {
2872         strncpy(pBuffer, strerror(EINVAL), BufferSize-1);
2873         return;
2874     }
2875 
2876     strncpy(pBuffer, strerror(pSocket->m_nLastError), BufferSize-1);
2877     return;
2878 }
2879 
2880 /*****************************************************************************/
2881 /* osl_getLastSocketError  */
2882 /*****************************************************************************/
2883 oslSocketError SAL_CALL osl_getLastSocketError(oslSocket pSocket)
2884 {
2885     if ( pSocket == 0 )
2886     {
2887         return ERROR_FROM_NATIVE(EINVAL);
2888     }
2889 
2890     return ERROR_FROM_NATIVE(pSocket->m_nLastError);
2891 }
2892 
2893 /*****************************************************************************/
2894 /* SocketSet                                                                 */
2895 /*****************************************************************************/
2896 typedef struct _TSocketSetImpl
2897 {
2898     int     m_MaxHandle;    /* for select(), the largest descriptor in the set */
2899     fd_set  m_Set;          /* the set of descriptors */
2900 
2901 } TSocketSetImpl;
2902 
2903 /*****************************************************************************/
2904 /* osl_createSocketSet  */
2905 /*****************************************************************************/
2906 oslSocketSet SAL_CALL osl_createSocketSet()
2907 {
2908     TSocketSetImpl* pSet;
2909 
2910     pSet= (TSocketSetImpl*)malloc(sizeof(TSocketSetImpl));
2911 
2912     OSL_ASSERT(pSet);
2913 
2914     if(pSet)
2915     {
2916         pSet->m_MaxHandle= 0;
2917         FD_ZERO(&pSet->m_Set);
2918     }
2919 
2920     return (oslSocketSet)pSet;
2921 }
2922 
2923 /*****************************************************************************/
2924 /* osl_destroySocketSet  */
2925 /*****************************************************************************/
2926 void SAL_CALL osl_destroySocketSet(oslSocketSet Set)
2927 {
2928     if(Set)
2929         free(Set);
2930 }
2931 
2932 /*****************************************************************************/
2933 /* osl_clearSocketSet  */
2934 /*****************************************************************************/
2935 void SAL_CALL osl_clearSocketSet(oslSocketSet Set)
2936 {
2937     TSocketSetImpl* pSet;
2938     OSL_ASSERT(Set);
2939     if ( Set == 0 )
2940     {
2941         return;
2942     }
2943 
2944     pSet= (TSocketSetImpl*)Set;
2945     pSet->m_MaxHandle= 0;
2946 
2947     FD_ZERO(&pSet->m_Set);
2948 }
2949 
2950 /*****************************************************************************/
2951 /* osl_addToSocketSet  */
2952 /*****************************************************************************/
2953 void SAL_CALL osl_addToSocketSet(oslSocketSet Set, oslSocket pSocket)
2954 {
2955     TSocketSetImpl* pSet;
2956 
2957     OSL_ASSERT(Set);
2958     OSL_ASSERT(pSocket);
2959 
2960     if ( Set == 0 || pSocket == 0)
2961     {
2962         return;
2963     }
2964 
2965     pSet= (TSocketSetImpl*)Set;
2966 
2967     /* correct max handle */
2968     if(pSocket->m_Socket > pSet->m_MaxHandle)
2969         pSet->m_MaxHandle= pSocket->m_Socket;
2970     FD_SET(pSocket->m_Socket, &pSet->m_Set);
2971 
2972 }
2973 
2974 /*****************************************************************************/
2975 /* osl_removeFromSocketSet  */
2976 /*****************************************************************************/
2977 void SAL_CALL osl_removeFromSocketSet(oslSocketSet Set, oslSocket pSocket)
2978 {
2979     TSocketSetImpl* pSet;
2980 
2981     OSL_ASSERT(Set);
2982     OSL_ASSERT(pSocket);
2983 
2984     if ( Set == 0 || pSocket == 0)
2985     {
2986         return;
2987     }
2988 
2989     pSet= (TSocketSetImpl*)Set;
2990 
2991     /* correct max handle */
2992     if(pSocket->m_Socket == pSet->m_MaxHandle)
2993     {
2994         /* not optimal, since the next used descriptor might be */
2995         /* much smaller than m_Socket-1, but it will do */
2996         pSet->m_MaxHandle--;
2997         if(pSet->m_MaxHandle < 0)
2998         {
2999             pSet->m_MaxHandle= 0;   /* avoid underflow */
3000         }
3001     }
3002 
3003     FD_CLR(pSocket->m_Socket, &pSet->m_Set);
3004 }
3005 
3006 /*****************************************************************************/
3007 /* osl_isInSocketSet  */
3008 /*****************************************************************************/
3009 sal_Bool SAL_CALL osl_isInSocketSet(oslSocketSet Set, oslSocket pSocket)
3010 {
3011     TSocketSetImpl* pSet;
3012 
3013     OSL_ASSERT(Set);
3014     OSL_ASSERT(pSocket);
3015     if ( Set == 0 || pSocket == 0 )
3016     {
3017         return sal_False;
3018     }
3019 
3020     pSet= (TSocketSetImpl*)Set;
3021 
3022     return (FD_ISSET(pSocket->m_Socket, &pSet->m_Set) != 0);
3023 }
3024 
3025 /*****************************************************************************/
3026 /* osl_demultiplexSocketEvents  */
3027 /*****************************************************************************/
3028 sal_Int32 SAL_CALL osl_demultiplexSocketEvents(oslSocketSet IncomingSet,
3029                                     oslSocketSet OutgoingSet,
3030                                     oslSocketSet OutOfBandSet,
3031                                     const TimeValue* pTimeout)
3032 {
3033     int MaxHandle= 0;
3034     struct timeval  tv;
3035     TSocketSetImpl* pInSet;
3036     TSocketSetImpl* pOutSet;
3037     TSocketSetImpl* pOOBSet;
3038 
3039     if (pTimeout)
3040     {
3041         /* non-blocking call */
3042         tv.tv_sec  = pTimeout->Seconds;
3043         tv.tv_usec = pTimeout->Nanosec / 1000L;
3044     }
3045 
3046     /* map opaque data to impl-types */
3047     pInSet=  (TSocketSetImpl*)IncomingSet;
3048     pOutSet= (TSocketSetImpl*)OutgoingSet;
3049     pOOBSet= (TSocketSetImpl*)OutOfBandSet;
3050 
3051     /* get max handle from all sets */
3052     if (pInSet)
3053         MaxHandle= pInSet->m_MaxHandle;
3054 
3055     if (pOutSet && (pOutSet->m_MaxHandle > MaxHandle))
3056         MaxHandle= pOutSet->m_MaxHandle;
3057 
3058     if (pOOBSet && (pOOBSet->m_MaxHandle > MaxHandle))
3059         MaxHandle= pOOBSet->m_MaxHandle;
3060 
3061     return select(MaxHandle+1,
3062                   pInSet  ? PTR_FD_SET(pInSet->m_Set)  : 0,
3063                   pOutSet ? PTR_FD_SET(pOutSet->m_Set) : 0,
3064                   pOOBSet ? PTR_FD_SET(pOOBSet->m_Set) : 0,
3065                   pTimeout ? &tv : 0);
3066 }
3067 
3068