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Always call res_init() before getaddrinfo().

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Unfortunately, glibc assumes that /etc/resolv.conf is a static file that
never changes. Even on servers, /etc/resolv.conf might be a dynamically
generated file, and we never know when it changes. So just call
res_init() every time, so glibc uses up-to-date nameserver information.
This commit is contained in:
Guus Sliepen 2015-02-09 15:16:36 +01:00
parent 268e3ffca7
commit 0b310bf406
4 changed files with 18 additions and 7 deletions
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7
src/net.c
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@ -36,10 +36,6 @@
#include "subnet.h"
#include "xalloc.h"
#ifdef HAVE_RESOLV_H
#include <resolv.h>
#endif
int contradicting_add_edge = 0;
int contradicting_del_edge = 0;
static int sleeptime = 10;
@ -313,9 +309,6 @@ static void sighup_handler(void *data) {
static void sigalrm_handler(void *data) {
logger(DEBUG_ALWAYS, LOG_NOTICE, "Got %s signal", strsignal(((signal_t *)data)->signum));
#ifdef HAVE_DECL_RES_INIT
res_init();
#endif
retry();
}
#endif