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Diffstat (limited to 'inet/getnameinfo.c')
-rw-r--r--inet/getnameinfo.c71
1 files changed, 30 insertions, 41 deletions
diff --git a/inet/getnameinfo.c b/inet/getnameinfo.c
index 5057fd221a..b7b2b151b2 100644
--- a/inet/getnameinfo.c
+++ b/inet/getnameinfo.c
@@ -203,48 +203,40 @@ getnameinfo (const struct sockaddr *sa, socklen_t addrlen, char *host,
if (!(flags & NI_NUMERICHOST))
{
struct hostent *h = NULL;
+ if (sa->sa_family == AF_INET6)
+ {
+ while (__gethostbyaddr_r ((const void *) &(((const struct sockaddr_in6 *) sa)->sin6_addr),
+ sizeof(struct in6_addr),
+ AF_INET6, &th, tmpbuf, tmpbuflen,
+ &h, &herrno))
+ if (herrno == NETDB_INTERNAL && errno == ERANGE)
+ tmpbuf = extend_alloca (tmpbuf, tmpbuflen, 2 * tmpbuflen);
+ else
+ break;
+ }
+ else
+ {
+ while (__gethostbyaddr_r ((const void *) &(((const struct sockaddr_in *)sa)->sin_addr),
+ sizeof(struct in_addr), AF_INET,
+ &th, tmpbuf, tmpbuflen,
+ &h, &herrno))
+ if (herrno == NETDB_INTERNAL && errno == ERANGE)
+ tmpbuf = extend_alloca (tmpbuf, tmpbuflen, 2 * tmpbuflen);
+ else
+ break;
+ }
+
if (h == NULL)
{
- if (sa->sa_family == AF_INET6)
+ if (herrno == NETDB_INTERNAL)
{
- while (__gethostbyaddr_r ((const void *) &(((const struct sockaddr_in6 *) sa)->sin6_addr),
- sizeof(struct in6_addr),
- AF_INET6, &th, tmpbuf, tmpbuflen,
- &h, &herrno))
- {
- if (herrno == NETDB_INTERNAL)
- {
- if (errno == ERANGE)
- tmpbuf = extend_alloca (tmpbuf, tmpbuflen,
- 2 * tmpbuflen);
- else
- {
- __set_h_errno (herrno);
- __set_errno (serrno);
- return EAI_SYSTEM;
- }
- }
- else
- {
- break;
- }
- }
+ __set_h_errno (herrno);
+ return EAI_SYSTEM;
}
- else
+ if (herrno == TRY_AGAIN)
{
- while (__gethostbyaddr_r ((const void *) &(((const struct sockaddr_in *)sa)->sin_addr),
- sizeof(struct in_addr), AF_INET,
- &th, tmpbuf, tmpbuflen,
- &h, &herrno))
- {
- if (errno == ERANGE)
- tmpbuf = extend_alloca (tmpbuf, tmpbuflen,
- 2 * tmpbuflen);
- else
- {
- break;
- }
- }
+ __set_h_errno (herrno);
+ return EAI_AGAIN;
}
}
@@ -361,10 +353,7 @@ getnameinfo (const struct sockaddr *sa, socklen_t addrlen, char *host,
(const void *) &(((const struct sockaddr_in *) sa)->sin_addr),
host, hostlen);
if (c == NULL)
- {
- __set_errno (serrno);
- return EAI_SYSTEM;
- }
+ return EAI_SYSTEM;
}
ok = 1;
}