From: Roy Marples <roy@marples.name>
Date: Tue, 15 Dec 2015 19:51:49 +0000 (+0000)
Subject: copy the configured hostname using the buffer length,
X-Git-Tag: v6.10.0~44
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b1128230f7d06ac9fee0fd7d1eee7ee23b87f8b6;p=thirdparty%2Fdhcpcd.git

copy the configured hostname using the buffer length,
Not the size of the pointer.
Thanks to Sem.

Fixes [7da8d97fc4].
---

diff --git a/dhcp-common.c b/dhcp-common.c
index b3d0a27e..aac24efb 100644
--- a/dhcp-common.c
+++ b/dhcp-common.c
@@ -61,7 +61,7 @@ dhcp_get_hostname(char *buf, size_t buf_len, const struct if_options *ifo)
 			return NULL;
 		buf[buf_len - 1] = '\0';
 	} else
-		strlcpy(buf, ifo->hostname, sizeof(buf));
+		strlcpy(buf, ifo->hostname, buf_len);
 
 	/* Deny sending of these local hostnames */
 	if (strcmp(buf, "(none)") == 0 ||