Don't read more data from ifname than fits in the result buffer.

svn path=/trunk/; revision=4149

diff --git a/interface.c b/interface.c
index 45706c0f4920f31c4e330ed67d1343c99b922449..b4e7f063c5ccbafcef230ad7bd511afab0664af0 100644 (file)
--- a/interface.c
+++ b/interface.c
@@ -227,9 +227,9 @@ openkvm(void)
 static int 
 get_ifinfo(const char *ifname, ifinfo_t *ifinfo)
 {
-       char                    tname[16];
+       char                    tname[16];
        char                    iname[16];
-       struct ifnet            ifnet;
+       struct ifnet            ifnet;
        unsigned long           ifnet_addr = ifnet_savedaddr;
 #if __FreeBSD_version >= 300001
        struct ifnethead        ifnethead;
@@ -244,7 +244,7 @@ get_ifinfo(const char *ifname, ifinfo_t *ifinfo)
        if (if_egid)
                setegid(if_egid);
        
-       for (i = 0; ifname[i] && ifname[i] != '/'; i++)
+       for (i = 0; ifname[i] && ifname[i] != '/' && i < sizeof(iname) - 1; i++)
                iname[i] = ifname[i];
                
        iname[i] = '\0';