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