source: projects/initscripts/tags/initscripts-8.91.3/src/usleep.c @ 1108

Revision 1108, 2.1 KB checked in by daisuke, 13 years ago (diff)

import initscripts-8.90.6 from internal cvs repository

Line 
1/*
2 * usleep
3 *
4 * Written by Donald Barnes <djb@redhat.com> for Red Hat, Inc.
5 *
6 * Copyright (c) 1997-2003 Red Hat, Inc. All rights reserved.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License, version 2,
10 * as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
20 *
21 */
22
23
24#include <unistd.h>
25#include <stdlib.h>
26#include <string.h>
27#include <stdio.h>
28
29#include "popt.h"
30
31int main(int argc, char **argv) {
32  unsigned long count;
33  poptContext optCon;
34  int showVersion = 0;
35  int showOot = 0;
36  int rc;
37  char * countStr = NULL;
38  struct poptOption options[] = {
39            { "version", 'v', POPT_ARG_NONE, &showVersion, 0, 
40                        "Display the version of this program, and exit" },
41            { "oot", 'o', POPT_ARG_NONE, &showOot, 0, 
42                        "oot says hey!" },
43            POPT_AUTOHELP
44            { 0, 0, 0, 0, 0 }
45        };
46
47  optCon = poptGetContext("usleep", argc, argv, options,0);
48  /*poptReadDefaultConfig(optCon, 1);*/
49  poptSetOtherOptionHelp(optCon, "[microseconds]");
50
51  if ((rc = poptGetNextOpt(optCon)) < -1) {
52        fprintf(stderr, "usleep: bad argument %s: %s\n", 
53                poptBadOption(optCon, POPT_BADOPTION_NOALIAS), 
54                poptStrerror(rc));
55        return 2;
56  }
57
58  if (showVersion) {
59      printf("usleep version 1.2\n      usleep --help for more info\n");
60      return 0;
61  }
62
63  if (showOot) {
64      printf("oot says hey!\n");
65      return 0;
66  }
67
68  countStr = poptGetArg(optCon);
69
70  if (countStr == NULL) count = 1;
71
72  else if (countStr && poptGetArg(optCon)) {
73      fprintf(stderr, "%s: exactly one argument (number of microseconds) "
74                "must be used\n", argv[0]);
75      return 2;
76  }
77
78  else count = strtoul(countStr, NULL, 0); 
79
80  usleep(count);
81  return 0;
82} 
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