In addition to checking if the provided port is numeric, also check that the string isn't empty and that the port number is within the valid range. Incidentally, this silences a compiler warning about ignoring strtol's return value. Signed-off-by: Rene Scharfe <rene.scharfe@xxxxxxxxxxxxxx> --- connect.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/connect.c b/connect.c index 584e04c..2f55ad2 100644 --- a/connect.c +++ b/connect.c @@ -480,8 +480,8 @@ char *get_port(char *host) char *p = strchr(host, ':'); if (p) { - strtol(p+1, &end, 10); - if (*end == '\0') { + long port = strtol(p + 1, &end, 10); + if (end != p + 1 && *end == '\0' && 0 <= port && port < 65536) { *p = '\0'; return p+1; } -- 1.6.1.rc3.52.g589372 -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html