/* * usleep * * Written by Donald Barnes 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * */ #include #include #include #include #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; }