diff options
Diffstat (limited to 'zebra/ipforward_proc.c')
| -rw-r--r-- | zebra/ipforward_proc.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/zebra/ipforward_proc.c b/zebra/ipforward_proc.c index 2834eeeb9c..f823ec4384 100644 --- a/zebra/ipforward_proc.c +++ b/zebra/ipforward_proc.c @@ -42,6 +42,7 @@ static void dropline(FILE *fp) int ipforward(void) { + int ret = 0; FILE *fp; int ipforwarding = 0; char buf[10]; @@ -58,11 +59,11 @@ int ipforward(void) 1 => ip forwarding enabled 2 => ip forwarding off. */ if (fgets(buf, 6, fp)) - sscanf(buf, "Ip: %d", &ipforwarding); + ret = sscanf(buf, "Ip: %d", &ipforwarding); fclose(fp); - if (ipforwarding == 1) + if (ret == 1 && ipforwarding == 1) return 1; return 0; @@ -127,6 +128,7 @@ char proc_ipv6_forwarding[] = "/proc/sys/net/ipv6/conf/all/forwarding"; int ipforward_ipv6(void) { + int ret = 0; FILE *fp; char buf[5]; int ipforwarding = 0; @@ -137,9 +139,13 @@ int ipforward_ipv6(void) return -1; if (fgets(buf, 2, fp)) - sscanf(buf, "%d", &ipforwarding); + ret = sscanf(buf, "%d", &ipforwarding); fclose(fp); + + if (ret != 1) + return 0; + return ipforwarding; } |