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 Foundation,
19 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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
main(int argc,char ** argv)31 int 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 }
83