diff options
| author | Pierre-Yves Ritschard <pyr@cvs.openbsd.org> | 2007-07-30 12:34:31 +0000 |
|---|---|---|
| committer | Pierre-Yves Ritschard <pyr@cvs.openbsd.org> | 2007-07-30 12:34:31 +0000 |
| commit | 22d27f49ba026522dc3aa149e97026326d999abd (patch) | |
| tree | 83c773deb7f176b14738003fe011fe17f8d320d9 /sbin | |
| parent | 61c5794e357f1b86cd14f3590930261ceb0ec055 (diff) | |
avoid segfault when empty string is passed as interface name.
ok henning@
Diffstat (limited to 'sbin')
| -rw-r--r-- | sbin/ifconfig/ifconfig.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sbin/ifconfig/ifconfig.c b/sbin/ifconfig/ifconfig.c index eca72a745db..baabf0cff22 100644 --- a/sbin/ifconfig/ifconfig.c +++ b/sbin/ifconfig/ifconfig.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ifconfig.c,v 1.182 2007/06/19 06:24:28 pyr Exp $ */ +/* $OpenBSD: ifconfig.c,v 1.183 2007/07/30 12:34:30 pyr Exp $ */ /* $NetBSD: ifconfig.c,v 1.40 1997/10/01 02:19:43 enami Exp $ */ /* @@ -777,7 +777,7 @@ printif(char *ifname, int ifaliases) if ((oname = strdup(ifname)) == NULL) err(1, "strdup"); nlen = strlen(oname); - if (!isdigit(oname[nlen - 1])) /* is it a group? */ + if (nlen && !isdigit(oname[nlen - 1])) /* is it a group? */ if (printgroup(oname, ifaliases) != -1) return; } @@ -788,7 +788,7 @@ printif(char *ifname, int ifaliases) namep = NULL; for (ifa = ifap; ifa; ifa = ifa->ifa_next) { if (oname) { - if (isdigit(oname[nlen - 1])) { + if (nlen && isdigit(oname[nlen - 1])) { /* must have exact match */ if (strcmp(oname, ifa->ifa_name) != 0) continue; |