commit 664711c1f4cc218073783ff6ce362093debd7b53
author Ulrich Weber <ulrich.weber@sophos.com> Wed Dec 21 02:24:11 2011 +0400
committer Denis Ovsienko <infrastation@yandex.ru> Mon Jan 02 19:13:28 2012 +0400
tree 5566b0c8b9d22de55772717ad6c701ea85b6241e
parent 6fd16207fee6d4d09f29ed7ecf26303a7220e473

lib: fix some strtoul() use cases

...otherwise 4294967295 is not a valid value on 32bit systems

bgpd/bgp_mplsvpn.c

diff --git a/bgpd/bgp_mplsvpn.c b/bgpd/bgp_mplsvpn.c
index 72ad089..c1f1fbb 100644
--- a/bgpd/bgp_mplsvpn.c
+++ b/bgpd/bgp_mplsvpn.c
@@ -233,9 +233,13 @@
   char *endptr;
   u_int32_t t;
 
-  l = strtoul (str, &endptr, 10);
+  if (*str == '-')
+    return 0;
   
-  if (*endptr == '\0' || l == ULONG_MAX || l > UINT32_MAX)
+  errno = 0;
+  l = strtoul (str, &endptr, 10);
+
+  if (*endptr != '\0' || errno || l > UINT32_MAX)
     return 0;
 
   t = (u_int32_t) l;