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Viewing changes to ros-privexp/mingw-w64-crt/libsrc/wspiapi/WspiapiLegacyGetAddrInfo.c

  • Committer: NightStrike
  • Date: 2010-08-11 22:20:57 UTC
  • Revision ID: svn-v4:4407c894-4637-0410-b4f5-ada5f102cad1:experimental:3266
Branch for adding option for supporting ros

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ros-privexp/mingw-w64-crt/libsrc/wspiapi/WspiapiLegacyGetAddrInfo.c
 
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#ifndef WIN32_LEAN_AND_MEAN
 
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#define WIN32_LEAN_AND_MEAN
 
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#endif
 
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#undef  __CRT__NO_INLINE
 
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#define __CRT__NO_INLINE
 
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#include <winsock2.h>
 
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#include <wspiapi.h>
 
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int WINAPI
 
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WspiapiLegacyGetAddrInfo(const char *pszNodeName,
 
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                         const char *pszServiceName,
 
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                         const struct addrinfo *ptHints,
 
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                         struct addrinfo **pptResult)
 
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{
 
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  int err = 0, iFlags = 0, iFamily = PF_UNSPEC, iSocketType = 0, iProtocol = 0;
 
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  struct in_addr inAddress;
 
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  struct servent *svc = NULL;
 
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  char *pc = NULL;
 
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  WINBOOL isCloned = FALSE;
 
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  WORD tcpPort = 0, udpPort = 0, port = 0;
 
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  *pptResult = NULL;
 
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  if (!pszNodeName && !pszServiceName)
 
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    return EAI_NONAME;
 
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  if (ptHints)
 
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    {
 
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        if (ptHints->ai_addrlen != 0 || ptHints->ai_canonname != NULL
 
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            || ptHints->ai_addr!=NULL || ptHints->ai_next != NULL)
 
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          return EAI_FAIL;
 
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        iFlags = ptHints->ai_flags;
 
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        if ((iFlags & AI_CANONNAME) != 0 && !pszNodeName)
 
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          return EAI_BADFLAGS;
 
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        iFamily = ptHints->ai_family;
 
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        if (iFamily != PF_UNSPEC && iFamily != PF_INET)
 
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          return EAI_FAMILY;
 
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        iSocketType = ptHints->ai_socktype;
 
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        if (iSocketType != 0 && iSocketType != SOCK_STREAM && iSocketType != SOCK_DGRAM
 
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            && iSocketType != SOCK_RAW)
 
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          return EAI_SOCKTYPE;
 
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        iProtocol = ptHints->ai_protocol;
 
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    }
 
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  if (pszServiceName)
 
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    {
 
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        port = (WORD) strtoul (pszServiceName, &pc, 10);
 
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        if(*pc == 0)
 
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          {
 
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            port = tcpPort = udpPort = htons (port);
 
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            if (iSocketType == 0)
 
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              {
 
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                isCloned = TRUE;
 
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                iSocketType = SOCK_STREAM;
 
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              }
 
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          }
 
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        else
 
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          {
 
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            if (iSocketType == 0 || iSocketType == SOCK_DGRAM)
 
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              {
 
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                svc = getservbyname(pszServiceName, "udp");
 
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                if (svc)
 
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                  port = udpPort = svc->s_port;
 
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              }
 
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            if (iSocketType == 0 || iSocketType == SOCK_STREAM)
 
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              {
 
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                svc = getservbyname(pszServiceName, "tcp");
 
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                if (svc)
 
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                  port = tcpPort = svc->s_port;
 
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              }
 
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            if (port == 0)
 
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              return (iSocketType ? EAI_SERVICE : EAI_NONAME);
 
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            if (iSocketType==0)
 
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              {
 
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                iSocketType = (tcpPort) ? SOCK_STREAM : SOCK_DGRAM;
 
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                isCloned = (tcpPort && udpPort);
 
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              }
 
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          }
 
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    }
 
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  if (!pszNodeName || WspiapiParseV4Address(pszNodeName,&inAddress.s_addr))
 
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    {
 
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        if (!pszNodeName)
 
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          {
 
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            inAddress.s_addr = htonl ((iFlags & AI_PASSIVE) ? INADDR_ANY : INADDR_LOOPBACK);
 
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          }
 
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      *pptResult = WspiapiNewAddrInfo(iSocketType, iProtocol, port, inAddress.s_addr);
 
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      if (!(*pptResult))
 
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          err = EAI_MEMORY;
 
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        if (!err && pszNodeName)
 
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          {
 
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            (*pptResult)->ai_flags |= AI_NUMERICHOST;
 
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            if (iFlags & AI_CANONNAME)
 
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              {
 
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                (*pptResult)->ai_canonname =
 
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                  WspiapiStrdup (inet_ntoa (inAddress));
 
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                if (!(*pptResult)->ai_canonname)
 
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                  err = EAI_MEMORY;
 
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              }
 
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          }
 
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    }
 
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  else if (iFlags & AI_NUMERICHOST)
 
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    err = EAI_NONAME;
 
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  else
 
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    err = WspiapiLookupNode (pszNodeName, iSocketType, iProtocol, port,
 
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                               (iFlags & AI_CANONNAME), pptResult);
 
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  if (!err && isCloned)
 
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    err = WspiapiClone(udpPort, *pptResult);
 
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  if (err)
 
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    {
 
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        WspiapiLegacyFreeAddrInfo (*pptResult);
 
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        *pptResult = NULL;
 
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    }
 
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  return err;
 
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}