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Provide a fallback for getnameinfo() also. Patch by Martin Storsjö

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<$firstname()$firstname,st>.

Originally committed as revision 21150 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Martin Storsjö 2010-01-11 17:45:17 +00:00 committed by Ronald S. Bultje
parent 34a65f1fdd
commit 5d629b72cb
2 changed files with 76 additions and 0 deletions
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32
libavformat/network.h
View File

@ -92,6 +92,14 @@ struct addrinfo {
#define EAI_FAIL 4
#endif
#ifndef EAI_FAMILY
#define EAI_FAMILY 5
#endif
#ifndef EAI_NONAME
#define EAI_NONAME 8
#endif
#ifndef AI_PASSIVE
#define AI_PASSIVE 1
#endif
@ -104,12 +112,36 @@ struct addrinfo {
#define AI_NUMERICHOST 4
#endif
#ifndef NI_NOFQDN
#define NI_NOFQDN 1
#endif
#ifndef NI_NUMERICHOST
#define NI_NUMERICHOST 2
#endif
#ifndef NI_NAMERQD
#define NI_NAMERQD 4
#endif
#ifndef NI_NUMERICSERV
#define NI_NUMERICSERV 8
#endif
#ifndef NI_DGRAM
#define NI_DGRAM 16
#endif
#if !HAVE_GETADDRINFO
int ff_getaddrinfo(const char *node, const char *service,
const struct addrinfo *hints, struct addrinfo **res);
void ff_freeaddrinfo(struct addrinfo *res);
int ff_getnameinfo(const struct sockaddr *sa, int salen,
char *host, int hostlen,
char *serv, int servlen, int flags);
#define getaddrinfo ff_getaddrinfo
#define freeaddrinfo ff_freeaddrinfo
#define getnameinfo ff_getnameinfo
#endif
#endif /* AVFORMAT_NETWORK_H */

44
libavformat/os_support.c
View File

@ -128,6 +128,50 @@ void ff_freeaddrinfo(struct addrinfo *res)
av_free(res->ai_addr);
av_free(res);
}
int ff_getnameinfo(const struct sockaddr *sa, int salen,
char *host, int hostlen,
char *serv, int servlen, int flags)
{
const struct sockaddr_in *sin = (const struct sockaddr_in *)sa;
if (sa->sa_family != AF_INET)
return EAI_FAMILY;
if (!host && !serv)
return EAI_NONAME;
if (host && hostlen > 0) {
struct hostent *ent = NULL;
uint32_t a;
if (!(flags & NI_NUMERICHOST))
ent = gethostbyaddr((const char *)&sin->sin_addr,
sizeof(sin->sin_addr), AF_INET);
if (ent) {
snprintf(host, hostlen, "%s", ent->h_name);
} else if (flags & NI_NAMERQD) {
return EAI_NONAME;
} else {
a = ntohl(sin->sin_addr.s_addr);
snprintf(host, hostlen, "%d.%d.%d.%d",
((a >> 24) & 0xff), ((a >> 16) & 0xff),
((a >> 8) & 0xff), ( a & 0xff));
}
}
if (serv && servlen > 0) {
struct servent *ent = NULL;
if (!(flags & NI_NUMERICSERV))
ent = getservbyport(sin->sin_port, flags & NI_DGRAM ? "udp" : "tcp");
if (ent) {
snprintf(serv, servlen, "%s", ent->s_name);
} else
snprintf(serv, servlen, "%d", ntohs(sin->sin_port));
}
return 0;
}
#endif
/* resolve host with also IP address parsing */