mirror of
https://gitlab.com/apparmor/apparmor.git
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87 lines
1.9 KiB
C
87 lines
1.9 KiB
C
/* $Id$ */
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/*
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* Copyright (C) 2002-2005 Novell/SUSE
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, version 2 of the
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* License.
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <string.h>
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/* this implicitly tests gethostname, too. */
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#define RESET_HOSTNAME_WHEN_DONE
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#define BUFSIZE 4096
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int main(int argc, char *argv[])
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{
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char saved_hostname[BUFSIZE];
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char new_hostname[BUFSIZE];
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size_t len = sizeof(saved_hostname);
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size_t newlen;
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int error = 0;
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if (argc != 2) {
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fprintf(stderr, "usage: %s hostname\n",
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argv[0]);
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return 1;
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}
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newlen = strlen(argv[1]);
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if (newlen <= 0 || newlen >= BUFSIZE) {
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fprintf(stderr, "FAIL: invalid hostname '%s'\n",
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argv[1]);
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return 1;
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}
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if (gethostname(saved_hostname, len) == -1) {
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fprintf(stderr, "FAIL: gethostname failed - %s\n",
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strerror(errno));
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return 1;
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}
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/* printf("old hostname is %s\n", saved_hostname); */
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if (sethostname(argv[1], strlen(argv[1])) == -1) {
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fprintf(stderr, "FAIL: sethostname failed - %s\n",
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strerror(errno));
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return 1;
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}
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len = sizeof(new_hostname);
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if (gethostname(new_hostname, len) == -1) {
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fprintf(stderr, "FAIL: gethostname failed - %s\n",
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strerror(errno));
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error = 1;
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goto cleanup;
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}
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if (strcmp(new_hostname, argv[1]) != 0) {
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fprintf(stderr, "FAIL: attempted to set hostname to '%s', but "
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"'%s' was the result\n",
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argv[1],
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new_hostname);
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error = 1;
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goto cleanup;
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}
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cleanup:
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#ifdef RESET_HOSTNAME_WHEN_DONE
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if (sethostname(saved_hostname, strlen(saved_hostname)) == -1) {
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fprintf(stderr, "FAIL: sethostname failed restting to old name - %s\n",
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strerror(errno));
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error = 1;
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}
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#endif /* RESET_HOSTNAME_WHEN_DONE */
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if (error == 0)
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printf("PASS\n");
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return error;
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}
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