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Check ipv6 route flags and sscanf count as well.

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This commit is contained in:
david 2012-09-27 03:06:22 +00:00
parent 95b634d28c
commit 06dcb1c138
1 changed files with 10 additions and 4 deletions
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14
libdnet-stripped/src/route-linux.c
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@ -212,10 +212,10 @@ route_loop(route_t *r, route_handler callback, void *arg)
FILE *fp;
struct route_entry entry;
char buf[BUFSIZ];
char ifbuf[16];
int ret = 0;
if ((fp = fopen(PROC_ROUTE_FILE, "r")) != NULL) {
char ifbuf[16];
int i, iflags, refcnt, use, metric, mss, win, irtt;
uint32_t mask;
@ -244,14 +244,17 @@ route_loop(route_t *r, route_handler callback, void *arg)
}
if (ret == 0 && (fp = fopen(PROC_IPV6_ROUTE_FILE, "r")) != NULL) {
char s[33], d[8][5], n[8][5];
int i, iflags;
u_int slen, dlen;
while (fgets(buf, sizeof(buf), fp) != NULL) {
sscanf(buf, "%04s%04s%04s%04s%04s%04s%04s%04s %02x "
"%32s %02x %04s%04s%04s%04s%04s%04s%04s%04s ",
i = sscanf(buf, "%04s%04s%04s%04s%04s%04s%04s%04s %02x "
"%32s %02x %04s%04s%04s%04s%04s%04s%04s%04s "
"%*x %*x %*x %x %15s",
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
&dlen, s, &slen,
n[0], n[1], n[2], n[3], n[4], n[5], n[6], n[7]);
n[0], n[1], n[2], n[3], n[4], n[5], n[6], n[7],
&iflags, ifbuf);
snprintf(buf, sizeof(buf), "%s:%s:%s:%s:%s:%s:%s:%s/%d",
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
dlen);
@ -261,6 +264,9 @@ route_loop(route_t *r, route_handler callback, void *arg)
IP6_ADDR_BITS);
addr_aton(buf, &entry.route_gw);
if (i < 21 || !(iflags & RTF_UP))
continue;
if ((ret = callback(&entry, arg)) != 0)
break;
}