This commit was manufactured by cvs2svn to create tag 'busybox_1_00'.

1 files changed, 130 insertions, 0 deletions

diff --git a/busybox/networking/hostname.c b/busybox/networking/hostname.c
new file mode 100644
index 0000000..a00263d
--- /dev/null
+++ b/busybox/networking/hostname.c
@@ -0,0 +1,130 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * $Id: hostname.c,v 1.36 2003/07/14 21:21:01 andersen Exp $
+ * Mini hostname implementation for busybox
+ *
+ * Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
+ *
+ * adjusted by Erik Andersen <andersen@codepoet.org> to remove
+ * use of long options and GNU getopt.  Improved the usage info.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <errno.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include "busybox.h"
+
+extern char *optarg; /* in unistd.h */
+extern int  optind, opterr, optopt; /* in unistd.h */
+
+static void do_sethostname(char *s, int isfile)
+{
+	FILE *f;
+	char buf[255];
+
+	if (!s)
+		return;
+	if (!isfile) {
+		if (sethostname(s, strlen(s)) < 0) {
+			if (errno == EPERM)
+				bb_error_msg_and_die("you must be root to change the hostname");
+			else
+				bb_perror_msg_and_die("sethostname");
+		}
+	} else {
+		f = bb_xfopen(s, "r");
+		while (fgets(buf, 255, f) != NULL) {
+			if (buf[0] =='#') {
+				continue;
+			}
+			chomp(buf);
+			do_sethostname(buf, 0);
+		}
+#ifdef CONFIG_FEATURE_CLEAN_UP
+		fclose(f);
+#endif
+	}
+}
+
+int hostname_main(int argc, char **argv)
+{
+	int opt;
+	int type = 0;
+	struct hostent *hp;
+	char *filename = NULL;
+	char buf[255];
+	char *p = NULL;
+
+	if (argc < 1)
+		bb_show_usage();
+
+        while ((opt = getopt(argc, argv, "dfisF:")) > 0) {
+                switch (opt) {
+		case 'd':
+		case 'f':
+		case 'i':
+		case 's':
+			type = opt;
+			break;
+		case 'F':
+			filename = optarg;
+			break;
+		default:
+			bb_show_usage();
+		}
+	}
+
+	/* Output in desired format */
+	if (type != 0) {
+		gethostname(buf, 255);
+		hp = xgethostbyname(buf);
+		p = strchr(hp->h_name, '.');
+		if (type == 'f') {
+			puts(hp->h_name);
+		} else if (type == 's') {
+			if (p != NULL) {
+				*p = 0;
+			}
+			puts(hp->h_name);
+		} else if (type == 'd') {
+			if (p) puts(p + 1);
+		} else if (type == 'i') {
+			while (hp->h_addr_list[0]) {
+				printf("%s ", inet_ntoa(*(struct in_addr *) (*hp->h_addr_list++)));
+			}
+			printf("\n");
+		}
+	}
+	/* Set the hostname */
+	else if (filename != NULL) {
+		do_sethostname(filename, 1);
+	} else if (optind < argc) {
+		do_sethostname(argv[optind], 0);
+	}
+	/* Or if all else fails,
+	 * just print the current hostname */
+	 else {
+		gethostname(buf, 255);
+		puts(buf);
+	}
+	return(0);
+}