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Load the proper getaddrinfo functions from ws2_32.dll, if they're present.

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Patch by Martin Storsjö <martin at martin dot st>.

Originally committed as revision 21443 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Martin Storsjö 2010-01-25 01:28:01 +00:00 committed by Ramiro Polla
parent 3debf366c8
commit 6023d84a2b
1 changed files with 31 additions and 0 deletions
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31
libavformat/os_support.c
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@ -68,6 +68,16 @@ int ff_getaddrinfo(const char *node, const char *service,
struct addrinfo *ai;
struct sockaddr_in *sin;
#if HAVE_WINSOCK2_H
int (WSAAPI *win_getaddrinfo)(const char *node, const char *service,
const struct addrinfo *hints,
struct addrinfo **res);
HMODULE ws2mod = GetModuleHandle("ws2_32.dll");
win_getaddrinfo = GetProcAddress(ws2mod, "getaddrinfo");
if (win_getaddrinfo)
return win_getaddrinfo(node, service, hints, res);
#endif
sin = av_mallocz(sizeof(struct sockaddr_in));
if (!sin)
return EAI_FAIL;
@ -124,6 +134,17 @@ int ff_getaddrinfo(const char *node, const char *service,
void ff_freeaddrinfo(struct addrinfo *res)
{
#if HAVE_WINSOCK2_H
void (WSAAPI *win_freeaddrinfo)(struct addrinfo *res);
HMODULE ws2mod = GetModuleHandle("ws2_32.dll");
win_freeaddrinfo = (void (WSAAPI *)(struct addrinfo *res))
GetProcAddress(ws2mod, "freeaddrinfo");
if (win_freeaddrinfo) {
win_freeaddrinfo(res);
return;
}
#endif
av_free(res->ai_canonname);
av_free(res->ai_addr);
av_free(res);
@ -135,6 +156,16 @@ int ff_getnameinfo(const struct sockaddr *sa, int salen,
{
const struct sockaddr_in *sin = (const struct sockaddr_in *)sa;
#if HAVE_WINSOCK2_H
int (WSAAPI *win_getnameinfo)(const struct sockaddr *sa, socklen_t salen,
char *host, DWORD hostlen,
char *serv, DWORD servlen, int flags);
HMODULE ws2mod = GetModuleHandle("ws2_32.dll");
win_getnameinfo = GetProcAddress(ws2mod, "getnameinfo");
if (win_getnameinfo)
return win_getnameinfo(sa, salen, host, hostlen, serv, servlen, flags);
#endif
if (sa->sa_family != AF_INET)
return EAI_FAMILY;
if (!host && !serv)