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authorUlrich Drepper <drepper@redhat.com>2006-11-27 21:58:18 +0000
committerUlrich Drepper <drepper@redhat.com>2006-11-27 21:58:18 +0000
commitb1a758f32b630104e68823604d2e0e9738fe2849 (patch)
treed5147123f8a8c18d2289247ff2a39ad0695a7529 /sunrpc
parent854d11248e195d7f880c50dec439d71ad9095fae (diff)
downloadglibc-b1a758f32b630104e68823604d2e0e9738fe2849.tar.gz
2006-11-27 Jakub Jelinek <jakub@redhat.com> [BZ #3559] * sunrpc/svc_run.c (svc_run): Fail instead of segfaulting if malloc crashed. Don't allocate memory unnecessarily in each loop.
Diffstat (limited to 'sunrpc')
-rw-r--r--sunrpc/svc_run.c35
1 files changed, 25 insertions, 10 deletions
diff --git a/sunrpc/svc_run.c b/sunrpc/svc_run.c
index 017910b453..feb1bf958e 100644
--- a/sunrpc/svc_run.c
+++ b/sunrpc/svc_run.c
@@ -51,36 +51,51 @@ void
svc_run (void)
{
int i;
+ struct pollfd *my_pollfd = NULL;
+ int last_max_pollfd = 0;
for (;;)
{
- struct pollfd *my_pollfd;
+ int max_pollfd = svc_max_pollfd;
+ if (max_pollfd == 0 && svc_pollfd == NULL)
+ break;
- if (svc_max_pollfd == 0 && svc_pollfd == NULL)
- return;
+ if (last_max_pollfd != max_pollfd)
+ {
+ struct pollfd *new_pollfd
+ = realloc (my_pollfd, sizeof (struct pollfd) * max_pollfd);
+
+ if (new_pollfd == NULL)
+ {
+ perror (_("svc_run: - out of memory"));
+ break;
+ }
+
+ last_max_pollfd = max_pollfd;
+ }
- my_pollfd = malloc (sizeof (struct pollfd) * svc_max_pollfd);
- for (i = 0; i < svc_max_pollfd; ++i)
+ for (i = 0; i < max_pollfd; ++i)
{
my_pollfd[i].fd = svc_pollfd[i].fd;
my_pollfd[i].events = svc_pollfd[i].events;
my_pollfd[i].revents = 0;
}
- switch (i = __poll (my_pollfd, svc_max_pollfd, -1))
+ switch (i = __poll (my_pollfd, max_pollfd, -1))
{
case -1:
- free (my_pollfd);
if (errno == EINTR)
continue;
perror (_("svc_run: - poll failed"));
- return;
+ break;
case 0:
- free (my_pollfd);
continue;
default:
INTUSE(svc_getreq_poll) (my_pollfd, i);
- free (my_pollfd);
+ continue;
}
+ break;
}
+
+ free (my_pollfd);
}