+++ /dev/null
-/* getparam.c
- *
- * Copyright (C) 2002 Simone Piccardi
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-/****************************************************************
- *
- * Program getparam.c:
- * Program to test function fopen
- *
- * Author: Simone Piccardi
- * Jan. 2002
- *
- * Usage: getparam -h give all info's
- *
- * $Id: getparam.c,v 1.1 2002/01/03 23:44:14 piccardi Exp $
- *
- ****************************************************************/
-/*
- * Include needed headers
- */
-#define _GNU_SOURCE
-#include <errno.h> /* error definitions and routines */
-#include <stdlib.h> /* C standard library */
-#include <unistd.h> /* unix standard library */
-#include <string.h> /* string functions */
-#include <limits.h>
-#include <stdio.h>
-
-
-#include <time.h> /* for CLK_TCK e CLOCKS_PER_SEC */
-
-/* Table of constants for sysconf() */
-char *sc_names[]={"_SC_ARG_MAX",
- "_SC_CHILD_MAX",
- "_SC_OPEN_MAX",
- "_SC_STREAM_MAX",
- "_SC_TZNAME_MAX",
- "_SC_NGROUPS_MAX",
- "_SC_SSIZE_MAX",
- "_SC_CLK_TCK",
- "_SC_JOB_CONTROL",
- "_SC_SAVED_IDS",
- "_SC_VERSION"};
-
-int sc_argument[]={_SC_ARG_MAX,
- _SC_CHILD_MAX,
- _SC_OPEN_MAX,
- _SC_STREAM_MAX,
- _SC_TZNAME_MAX,
- _SC_NGROUPS_MAX,
- _SC_SSIZE_MAX,
- _SC_CLK_TCK,
- _SC_JOB_CONTROL,
- _SC_SAVED_IDS,
- _SC_VERSION};
-
-/*
- Set the defined[] array to true if the macro is defined else set it
- to false and define the macro to -1 as a marker
-*/
-int defined[]={
-#ifdef ARG_MAX
- 1,
-#else
-#define ARG_MAX -1
- 0,
-#endif
-#ifdef CHILD_MAX
- 1,
-#else
-#define CHILD_MAX -1
- 0,
-#endif
-#ifdef OPEN_MAX
- 1,
-#else
-#define OPEN_MAX -1
- 0,
-#endif
-#ifdef STREAM_MAX
- 1,
-#else
-#define STREAM_MAX -1
- 0,
-#endif
-#ifdef NGROUPS_MAX
- 1,
-#else
-#define NGROUPS_MAX -1
- 0,
-#endif
-#ifdef TZNAME_MAX
- 1,
-#else
-#define TZNAME_MAX -1
- 0,
-#endif
-#ifdef SSIZE_MAX
- 1
-#else
-#define SSIZE_MAX -1
- 0
-};
-
-
-
-/* values of stadard macros */
-long values[]={ARG_MAX,
- CHILD_MAX,
- OPEN_MAX,
- STREAM_MAX,
- TZNAME_MAX,
- NGROUPS_MAX,
- SSIZE_MAX,
- CLOCKS_PER_SEC,
- _POSIX_JOB_CONTROL,
- _POSIX_SAVED_IDS,
- _POSIX_VERSION};
-
-/* Help printing routine */
-void usage(void);
-
-int main(int argc, char *argv[])
-{
-/*
- * Variables definition
- */
- int i;
- /*
- * Input section: decode command line parameters
- * Use getopt function
- */
- opterr = 0; /* don't want writing to stderr */
- while ( (i = getopt(argc, argv, "h")) != -1) {
- switch (i) {
- /*
- * Handling options
- */
- case 'h': /* help option */
- printf("Wrong -h option use\n");
- usage();
- return -1;
- break;
- case '?': /* unrecognized options */
- printf("Unrecognized options -%c\n",optopt);
- usage();
- default: /* should not reached */
- usage();
- }
- }
- /* ***********************************************************
- *
- * Options processing completed
- *
- * Main code beginning
- *
- * ***********************************************************/
- /* There must be 2 remaing parameters */
- if ( (argc-optind) != 1 ) {
- printf("From %d arguments, removed %d options\n", argc, optind);
- usage();
- }
- for (i=0; i<=4; i++) {
- printf("Response for %s is %ld, values is %ld\n", names[i],
- sysconf(argument[i]), values[i]);
- }
- return 0;
-}
-/*
- * routine to print usage info and exit
- */
-void usage(void) {
- printf("Program testfopen : test fopen for a file \n");
- printf("Usage:\n");
- printf(" testfopen [-h] file mode \n");
- printf(" -h print this help\n");
-
- exit(1);
-}
-