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Check for working getaddrinfo() function

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At least AIX 4.3.3 and 5.1 have a broken implementation of getaddrinfo()
which doesn't handle "0" as numeric service correctly. This patch adds
a configure check for this case and changes all calling functions to only
use getaddrinfo() if it "works".

See <http://www.stacken.kth.se/lists/heimdal-discuss/2004-05/msg00059.html>
This commit is contained in:
Alexander Barton 2013-11-12 00:28:50 +01:00
parent 5a424f60da
commit b8433e9261
3 changed files with 35 additions and 4 deletions
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35
configure.ng
View File

@ -93,6 +93,35 @@ AC_DEFUN([GCC_STACK_PROTECT_CC],[
fi
])
AC_DEFUN([WORKING_GETADDRINFO],[
AC_CHECK_FUNCS([getaddrinfo],[
AC_MSG_CHECKING([whether getaddrinfo() works])
AC_TRY_RUN([
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
int
main(int argc, char **argv)
{
struct addrinfo hints, *ai;
memset(&hints, 0, sizeof(hints));
hints.ai_flags = AI_PASSIVE;
hints.ai_socktype = SOCK_STREAM;
hints.ai_family = PF_UNSPEC;
if(getaddrinfo(NULL, "0", &hints, &ai) != 0)
return 1;
return 0;
}
],[
AC_DEFINE([HAVE_WORKING_GETADDRINFO], 1, [getaddrinfo(0)])
AC_MSG_RESULT(yes)
],[
AC_MSG_RESULT(no)
])
])
])
# -- Hard coded system and compiler dependencies/features/options ... --
if test "$GCC" = "yes"; then
@ -189,11 +218,13 @@ AC_CHECK_FUNCS([ \
AC_MSG_ERROR([required function missing!]))
# Optional functions
AC_CHECK_FUNCS_ONCE([ \
arc4random arc4random_stir gai_strerror getaddrinfo getnameinfo inet_aton
AC_CHECK_FUNCS_ONCE([
arc4random arc4random_stir gai_strerror getnameinfo inet_aton \
sigaction sigprocmask snprintf vsnprintf strdup strndup strlcpy strlcat \
strtok_r unsetenv waitpid])
WORKING_GETADDRINFO
# -- Configuration options --
# use syslog?

2
src/ipaddr/ng_ipaddr.c
View File

@ -23,7 +23,7 @@
GLOBAL bool
ng_ipaddr_init(ng_ipaddr_t *addr, const char *ip_str, UINT16 port)
{
#ifdef HAVE_GETADDRINFO
#ifdef HAVE_WORKING_GETADDRINFO
int ret;
char portstr[64];
struct addrinfo *res0;

2
src/ngircd/resolve.c
View File

@ -242,7 +242,7 @@ ForwardLookup(const char *hostname, array *IpAddr, int af)
{
ng_ipaddr_t addr;
#ifdef HAVE_GETADDRINFO
#ifdef HAVE_WORKING_GETADDRINFO
int res;
struct addrinfo *a, *ai_results;
static struct addrinfo hints;