summaryrefslogtreecommitdiff
path: root/sysdeps/unix/sysv/linux/getipv4sourcefilter.c
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>2004-08-06 09:25:59 +0000
committerUlrich Drepper <drepper@redhat.com>2004-08-06 09:25:59 +0000
commit9030e7c44aa75345336673c0252974ead4eb8364 (patch)
treec898cc7e9f7f6e5559cacaa0c1dc78893628bd54 /sysdeps/unix/sysv/linux/getipv4sourcefilter.c
parenta55bda85baca5feee69b7bc01b9c76f89a6347dd (diff)
Update.
2004-07-30 Guido Guenther <agx@sigxcpu.org> * nss/getent.c (passwd_keys): Use strtoul instead of isdigit to test if the key is numeric or not. (group_keys): Likewise.
Diffstat (limited to 'sysdeps/unix/sysv/linux/getipv4sourcefilter.c')
-rw-r--r--sysdeps/unix/sysv/linux/getipv4sourcefilter.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/sysdeps/unix/sysv/linux/getipv4sourcefilter.c b/sysdeps/unix/sysv/linux/getipv4sourcefilter.c
index 7fad6a7c82..1a4e16cdbd 100644
--- a/sysdeps/unix/sysv/linux/getipv4sourcefilter.c
+++ b/sysdeps/unix/sysv/linux/getipv4sourcefilter.c
@@ -23,6 +23,7 @@
#include <stdlib.h>
#include <string.h>
#include <netinet/in.h>
+#include <sys/param.h>
#include <sys/socket.h>
@@ -33,20 +34,21 @@ getipv4sourcefilter (int s, struct in_addr interface, struct in_addr group,
/* We have to create an struct ip_msfilter object which we can pass
to the kernel. */
socklen_t needed = IP_MSFILTER_SIZE (*numsrc);
- int use_malloc = __libc_use_alloca (needed);
+ int use_alloca = __libc_use_alloca (needed);
struct ip_msfilter *imsf;
- if (use_malloc)
+ if (use_alloca)
+ imsf = (struct ip_msfilter *) alloca (needed);
+ else
{
imsf = (struct ip_msfilter *) malloc (needed);
if (imsf == NULL)
return -1;
}
- else
- imsf = (struct ip_msfilter *) alloca (needed);
imsf->imsf_multiaddr = group;
imsf->imsf_interface = interface;
+ imsf->imsf_numsrc = *numsrc;
int result = __getsockopt (s, SOL_IP, IP_MSFILTER, imsf, &needed);
@@ -55,12 +57,12 @@ getipv4sourcefilter (int s, struct in_addr interface, struct in_addr group,
if (result == 0)
{
*fmode = imsf->imsf_fmode;
- *numsrc = imsf->imsf_numsrc;
memcpy (slist, imsf->imsf_slist,
- imsf->imsf_numsrc * sizeof (struct in_addr));
+ MIN (*numsrc, imsf->imsf_numsrc) * sizeof (struct in_addr));
+ *numsrc = imsf->imsf_numsrc;
}
- if (use_malloc)
+ if (! use_alloca)
{
int save_errno = errno;
free (imsf);