From: Roy Marples <roy@marples.name>
Date: Fri, 8 Aug 2008 12:26:05 +0000 (+0000)
Subject: Ensure that hostname does not begin with a .
X-Git-Tag: v4.0.2~73
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=caf08c91c9df09401fe1233706122210acb7d07e;p=thirdparty%2Fdhcpcd.git

Ensure that hostname does not begin with a .
---

diff --git a/dhcpcd.c b/dhcpcd.c
index 889cf777..59de265e 100644
--- a/dhcpcd.c
+++ b/dhcpcd.c
@@ -332,6 +332,10 @@ parse_option(int opt, char *oarg, struct options *options)
 			logger(LOG_ERR, "hostname: %s", strerror(errno));
 			return -1;
 		}
+		if (s != 0 && options->hostname[1] == '.') {
+			logger(LOG_ERR, "hostname cannot begin with a .");
+			return -1;
+		}
 		options->hostname[0] = (uint8_t)s;
 		break;
 	case 'i':