File dhcp-4.1.1-dhclient-send-hostname-rml.diff of Package dhcp

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File dhcp-4.1.1-dhclient-send-hostname-rml.diff of Package dhcp (Revision eb6891f11905fb344201caa2882e2eb0)

Currently displaying revision eb6891f11905fb344201caa2882e2eb0 , Show latest

diff --git a/client/dhclient.8 b/client/dhclient.8
index b805528..d31fa8d 100644
--- a/client/dhclient.8
+++ b/client/dhclient.8
@@ -60,6 +60,9 @@ dhclient - Dynamic Host Configuration Protocol Client
 .I port
 ]
 [
+.B -H hostname
+]
+[
 .B -d
 ]
 [
@@ -227,6 +230,11 @@ If a different port is specified for the client to listen on and
 transmit on, the client will also use a different destination port -
 one less than the specified port.
 .PP
+The
+.B -H
+flag may be used to specify a client hostname that should be sent to
+the DHCP server. Note, that this option is a SUSE/Novell extension.
+.PP
 The DHCP client normally transmits any protocol messages it sends
 before acquiring an IP address to, 255.255.255.255, the IP limited
 broadcast address.   For debugging purposes, it may be useful to have
diff --git a/client/dhclient.c b/client/dhclient.c
index 15c31a5..65e9c23 100644
--- a/client/dhclient.c
+++ b/client/dhclient.c
@@ -108,6 +108,7 @@ main(int argc, char **argv) {
 	int no_dhclient_db = 0;
 	int no_dhclient_pid = 0;
 	int no_dhclient_script = 0;
+	char *dhclient_hostname = NULL;
 #ifdef DHCPv6
 	int local_family_set = 0;
 #endif /* DHCPv6 */
@@ -212,6 +213,16 @@ main(int argc, char **argv) {
 			if (++i == argc)
 				usage();
 			mockup_relay = argv[i];
+		} else if (!strcmp (argv[i], "-H")) {
+			if (++i == argc || !argv[i] || *(argv[i]) == '\0')
+				usage ();
+			if (strlen (argv[i]) > HOST_NAME_MAX) {
+				log_error("-H option host-name string \"%s\" is too long:"
+				          "maximum length is %d characters",
+					  argv[i], HOST_NAME_MAX);
+				exit(1);
+			}
+			dhclient_hostname = argv [i];
 		} else if (!strcmp(argv[i], "-nw")) {
 			nowait = 1;
 		} else if (!strcmp(argv[i], "-n")) {
@@ -445,6 +456,32 @@ main(int argc, char **argv) {
 	/* Parse the dhclient.conf file. */
 	read_client_conf();
 
+	/* If the user specified a hostname, send it here and now */
+	if ((dhclient_hostname != NULL) && (*dhclient_hostname != '\0') ) {
+		struct parse *cfile = NULL;
+		char buf[HOST_NAME_MAX + 40];
+		int len;
+
+		snprintf (buf, sizeof(buf), "send host-name \"%s\";", dhclient_hostname);
+		len = strlen(buf);
+
+		status = new_parse (&cfile, -1, buf, len, "host-name option", 0);
+		if (status != ISC_R_SUCCESS)
+			log_fatal ("Cannot parse send host-name statement!");
+
+		for (;;) {
+			const char *val = NULL;
+			int token;
+
+			token = peek_token (&val, (unsigned *)0, cfile);
+			if (token == END_OF_FILE)
+				break;
+
+			parse_client_statement (cfile, NULL, &top_level_config);
+		}
+		end_parse (&cfile);
+	}
+
 	/* Parse the lease database. */
 	read_client_leases();
 
@@ -653,12 +690,12 @@ static void usage()
 
 	log_error("Usage: dhclient %s %s",
 #ifdef DHCPv6
-		  "[-4|-6] [-SNTP1dvrx] [-nw] [-p <port>]",
+		  "[-4|-6] [-SNTP1dvrx] [-nw] [-H <hostname>] [-p <port>]",
 #else /* DHCPv6 */
 		  "[-1dvrx] [-nw] [-p <port>]",
 #endif /* DHCPv6 */
 		  "[-s server]");
-	log_error("                [-cf config-file] [-lf lease-file]%s",
+	log_error("                [-cf config-file] [-lf lease-file] %s",
 		  "[-pf pid-file] [-e VAR=val]");
 	log_fatal("                [-sf script-file] [interface]");
 }

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File dhcp-4.1.1-dhclient-send-hostname-rml.diff of Package dhcp (Revision eb6891f11905fb344201caa2882e2eb0)

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