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getnameinfo: Do not preserve errno

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POSIX does not require it, the companion getaddrinfo implementation
does not do it, and this behavior is not documented in the manual
page, either.
This commit is contained in:
Florian Weimer 2016-04-28 17:41:49 +02:00
parent ed3c7876cc
commit 2b54cbce2c
2 changed files with 6 additions and 10 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
2016-04-28 Florian Weimer <fweimer@redhat.com>
* inet/getnameinfo.c (getnameinfo): Do not preserve errno.
2016-04-28 Florian Weimer <fweimer@redhat.com>
* resolv/inet_addr.c: Reindent preprocessor conditionals.

12
inet/getnameinfo.c
View File

@ -175,7 +175,6 @@ getnameinfo (const struct sockaddr *sa, socklen_t addrlen, char *host,
socklen_t hostlen, char *serv, socklen_t servlen,
int flags)
{
int serrno = errno;
int herrno;
struct hostent th;
int ok = 0;
@ -326,10 +325,7 @@ getnameinfo (const struct sockaddr *sa, socklen_t addrlen, char *host,
if (!ok)
{
if (flags & NI_NAMEREQD)
{
__set_errno (serrno);
return EAI_NONAME;
}
return EAI_NONAME;
else
{
const char *c;
@ -406,10 +402,7 @@ getnameinfo (const struct sockaddr *sa, socklen_t addrlen, char *host,
};
if (flags & NI_NAMEREQD)
{
__set_errno (serrno);
return EAI_NONAME;
}
return EAI_NONAME;
strncpy (host, "localhost", hostlen);
break;
@ -463,7 +456,6 @@ getnameinfo (const struct sockaddr *sa, socklen_t addrlen, char *host,
host[hostlen-1] = 0;
if (serv && (servlen > 0))
serv[servlen-1] = 0;
errno = serrno;
return 0;
}
libc_hidden_def (getnameinfo)