From: Roy Marples <roy@marples.name>
Date: Fri, 29 Jul 2022 07:00:09 +0000 (+0100)
Subject: options: Ensure that we correctly read auth tokens.
X-Git-Tag: v9.5.0~30
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f4d4df5169492b5e9cac0f7f568f86db51691260;p=thirdparty%2Fdhcpcd.git

options: Ensure that we correctly read auth tokens.
---

diff --git a/src/if-options.c b/src/if-options.c
index dd70c806..46ea7ea0 100644
--- a/src/if-options.c
+++ b/src/if-options.c
@@ -266,6 +266,8 @@ parse_str(char *sbuf, size_t slen, const char *str, int flags)
 		}
 	} else {
 		l = (size_t)hwaddr_aton(NULL, str);
+		if (sbuf == NULL)
+			return (ssize_t)l;
 		if ((ssize_t) l != -1 && l > 1) {
 			if (l > slen) {
 				errno = ENOBUFS;