From ca574cb5173760bee624bceb403d8b181728041a Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Sat, 8 Jan 2011 17:30:33 +0000 Subject: package/swconfig: add sanity checks to prevent a segfault git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24932 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- package/swconfig/src/swlib.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'package/swconfig/src') diff --git a/package/swconfig/src/swlib.c b/package/swconfig/src/swlib.c index 59456a33d9..c2316d0686 100644 --- a/package/swconfig/src/swlib.c +++ b/package/swconfig/src/swlib.c @@ -368,11 +368,26 @@ int swlib_set_attr_string(struct switch_dev *dev, struct switch_attr *a, int por ptr = (char *)str; while(ptr && *ptr) { + while(*ptr && isspace(*ptr)) + ptr++; + + if (!*ptr) + break; + + if (!isdigit(*ptr)) + return -1; + + if (val.len >= dev->ports) + return -1; + ports[val.len].flags = 0; ports[val.len].id = strtoul(ptr, &ptr, 10); while(*ptr && !isspace(*ptr)) { if (*ptr == 't') ports[val.len].flags |= SWLIB_PORT_FLAG_TAGGED; + else + return -1; + ptr++; } if (*ptr) -- cgit v1.2.3