/* vi: set sw=4 ts=4: */
/*
- * $Id: hostname.c,v 1.7 2000/02/08 19:58:47 erik Exp $
+ * $Id: hostname.c,v 1.20 2001/01/24 18:44:54 andersen Exp $
* Mini hostname implementation for busybox
*
* Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include "internal.h"
+#include "busybox.h"
#include <errno.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <unistd.h>
#include <stdio.h>
-static const char *hostname_usage =
- "hostname [OPTION] {hostname | -F file}\n\n"
- "Get or set the hostname or DNS domain name. If a hostname is given\n"
- "(or a file with the -F parameter), the host name will be set.\n\n"
- "Options:\n"
- "\t-s\t\tShort\n"
-
- "\t-i\t\tAddresses for the hostname\n"
- "\t-d\t\tDNS domain name\n"
- "\t-F FILE\t\tUse the contents of FILE to specify the hostname\n";
-
-
void do_sethostname(char *s, int isfile)
{
FILE *f;
if (!isfile) {
if (sethostname(s, strlen(s)) < 0) {
if (errno == EPERM)
- fprintf(stderr,
- "hostname: you must be root to change the hostname\n");
+ error_msg_and_die("you must be root to change the hostname\n");
else
- perror("sethostname");
- exit(1);
+ perror_msg_and_die("sethostname");
}
} else {
- if ((f = fopen(s, "r")) == NULL) {
- perror(s);
- exit(1);
- } else {
- fgets(buf, 255, f);
- fclose(f);
- if (buf[strlen(buf) - 1] == '\n')
- buf[strlen(buf) - 1] = 0;
- if (sethostname(buf, strlen(buf)) < 0) {
- perror("sethostname");
- exit(1);
- }
- }
+ f = xfopen(s, "r");
+ fgets(buf, 255, f);
+ fclose(f);
+ if (buf[strlen(buf) - 1] == '\n')
+ buf[strlen(buf) - 1] = 0;
+ if (sethostname(buf, strlen(buf)) < 0)
+ perror_msg_and_die("sethostname");
}
}
opt_domain = 1;
break;
case 'F':
- filename = optarg;
if (--argc == 0) {
usage(hostname_usage);
}
filename = *(++argv);
break;
+ case '-':
+ if (strcmp(++(*argv), "file") || --argc ==0 ) {
+ usage(hostname_usage);
+ }
+ filename = *(++argv);
+ break;
default:
usage(hostname_usage);
}
printf("%s\n", buf);
}
}
- exit(0);
+ return(0);
}