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tetex-bin  3.0
access.c File Reference
#include <stdio.h>
#include <kpathsea/config.h>
#include <kpathsea/c-unistd.h>
#include <kpathsea/c-memstr.h>

Go to the source code of this file.


int main P2C (int, argc, char **, argv)

Function Documentation

int main P2C ( int  ,
argc  ,
char **  ,

Definition at line 31 of file access.c.

    int mode;
    int status;
    char * i;

    if (argc > 1 && strcmp (argv[1], "--help") == 0) {
        printf("Usage: %s -MODE FILE\n\
  MODE is one or more of rwx.  Exit successfully if FILE exists and is\n\
  readable (r), writable (w), or executable (x).\n\
--help      display this help and exit\n\
--version   output version information and exit\n\n", argv[0]);
        fputs ("Email bug reports to\n", stdout);
    } else if (argc > 1 && strcmp (argv[1], "--version") == 0) {
        printf ("%s (%s)\n\
Copyright (C) 1997 Olaf Weber.\n\
There is NO warranty.  You may redistribute this software\n\
under the terms of the GNU General Public License\n\
For more information about these matters, see the file named COPYING.\n\
Primary author of %s: Olaf Weber.\n",
argv[0], KPSEVERSION, argv[0]);
        exit (0);

    /* insist on exactly two args */
    if (argc != 3) {
        fprintf(stderr, "%s: Need exactly two arguments.\n\
Try `%s --help' for more information.\n", argv[0], argv[0]);

    /* The option parsing is somewhat primitive: '-' need not be the first
     * character of the mode.  The mode must be specified in a single
     * option.  Both of these may change.
    mode = 0;
    i = argv[1];
    for (i = argv[1]; *i; ++i)
        switch (*i) {
        case 'r': mode |= R_OK; break;
        case 'w': mode |= W_OK; break;
        case 'x': mode |= X_OK; break;
        case '-': if (i == argv[1]) break;
            fprintf(stderr, "%s: Invalid MODE.\n", argv[0]);
    status = access(argv[2], mode);
    /* fail if the access call failed */
    if (status != 0) {
        return 1;
    /* otherwise, succeed */
    return 0;

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