/* vi: set sw=4 ts=4: */
/*
- * $Id: hostname.c,v 1.13 2000/09/25 21:45:57 andersen Exp $
+ * $Id: hostname.c,v 1.26 2001/03/09 21:24:12 andersen Exp $
* Mini hostname implementation for busybox
*
* Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
#include <arpa/inet.h>
#include <netdb.h>
#include <unistd.h>
+#include <string.h>
#include <stdio.h>
+#include <stdlib.h>
-void do_sethostname(char *s, int isfile)
+static void do_sethostname(char *s, int isfile)
{
FILE *f;
char buf[255];
if (!isfile) {
if (sethostname(s, strlen(s)) < 0) {
if (errno == EPERM)
- errorMsg("you must be root to change the hostname\n");
+ error_msg_and_die("you must be root to change the hostname");
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);
+ chomp(buf);
+ if (sethostname(buf, strlen(buf)) < 0)
+ perror_msg_and_die("sethostname");
}
}
char *s = NULL;
if (argc < 1)
- usage(hostname_usage);
+ show_usage();
while (--argc > 0 && **(++argv) == '-') {
while (*(++(*argv))) {
break;
case 'F':
if (--argc == 0) {
- usage(hostname_usage);
+ show_usage();
+ }
+ filename = *(++argv);
+ break;
+ case '-':
+ if (strcmp(++(*argv), "file") || --argc ==0 ) {
+ show_usage();
}
filename = *(++argv);
break;
default:
- usage(hostname_usage);
+ show_usage();
}
if (filename != NULL)
break;