From 1edcee2141c48a6bd767e9400b0883e6de9d14e5 Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Sat, 7 Jun 2014 06:45:19 +0200
Subject: check if dhcpd exists and is executable

---
 dyndhcpd.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'dyndhcpd.c')

diff --git a/dyndhcpd.c b/dyndhcpd.c
index 993b3ed..dde769b 100644
--- a/dyndhcpd.c
+++ b/dyndhcpd.c
@@ -108,6 +108,12 @@ int main(int argc, char ** argv) {
 		goto out;
 	}
 
+	/* check if dhcpd exists and is executable */
+	if (access(DHCPDFILE, X_OK) == -1) {
+		fprintf(stderr, "The dhcp daemon is not execatable!\n");
+		goto out;
+	}
+
 	/* get the domainname */
 	gethostname(hostname, 254);
 	hp = gethostbyname(hostname);
@@ -268,7 +274,7 @@ int main(int argc, char ** argv) {
 			if (verbose > 1)
 				printf("Running: dhcpd -f -d -q -4 -pf %s -lf %s -cf %s %s\n",
 					pidfile, leasesfile, filename, interface);
-			execlp("/usr/bin/dhcpd", "dhcpd", "-f", "-d", "-q", "-4",
+			execlp(DHCPDFILE, "dhcpd", "-f", "-d", "-q", "-4",
 				"-pf", pidfile, "-lf", leasesfile, "-cf", filename, interface, NULL);
 
 			rc = EXIT_SUCCESS;
-- 
cgit v1.2.3-54-g00ecf