| Patrick Williams | b48b7b4 | 2016-08-17 15:04:38 -0500 | [diff] [blame^] | 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 | |
| 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 | } |