| /* |
| * usleep |
| * |
| * Written by Donald Barnes <djb@redhat.com> for Red Hat, Inc. |
| * |
| * Copyright (c) 1997-2003 Red Hat, Inc. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License, version 2, |
| * as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| */ |
| |
| |
| #include <unistd.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <stdio.h> |
| |
| #include "popt.h" |
| |
| int main(int argc, char **argv) { |
| unsigned long count; |
| poptContext optCon; |
| int showVersion = 0; |
| int showOot = 0; |
| int rc; |
| char * countStr = NULL; |
| struct poptOption options[] = { |
| { "version", 'v', POPT_ARG_NONE, &showVersion, 0, |
| "Display the version of this program, and exit" }, |
| { "oot", 'o', POPT_ARG_NONE, &showOot, 0, |
| "oot says hey!" }, |
| POPT_AUTOHELP |
| { 0, 0, 0, 0, 0 } |
| }; |
| |
| optCon = poptGetContext("usleep", argc, argv, options,0); |
| /*poptReadDefaultConfig(optCon, 1);*/ |
| poptSetOtherOptionHelp(optCon, "[microseconds]"); |
| |
| if ((rc = poptGetNextOpt(optCon)) < -1) { |
| fprintf(stderr, "usleep: bad argument %s: %s\n", |
| poptBadOption(optCon, POPT_BADOPTION_NOALIAS), |
| poptStrerror(rc)); |
| return 2; |
| } |
| |
| if (showVersion) { |
| printf("usleep version 1.2\n usleep --help for more info\n"); |
| return 0; |
| } |
| |
| if (showOot) { |
| printf("oot says hey!\n"); |
| return 0; |
| } |
| |
| countStr = poptGetArg(optCon); |
| |
| if (countStr == NULL) count = 1; |
| |
| else if (countStr && poptGetArg(optCon)) { |
| fprintf(stderr, "%s: exactly one argument (number of microseconds) " |
| "must be used\n", argv[0]); |
| return 2; |
| } |
| |
| else count = strtoul(countStr, NULL, 0); |
| |
| usleep(count); |
| return 0; |
| } |