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tetex-bin  3.0
Functions
readlink.c File Reference
#include <stdio.h>
#include <kpathsea/config.h>
#include <kpathsea/c-pathmx.h>
#include <kpathsea/c-unistd.h>
#include <kpathsea/c-stat.h>

Go to the source code of this file.

Functions

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

Function Documentation

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

Definition at line 35 of file readlink.c.

{
#ifdef S_ISLNK
    int status;
    char path[PATH_MAX];
#endif
    
    if (argc > 1 && strcmp (argv[1], "--help") == 0) {
        printf("Usage: %s FILE\n\
  If FILE exists and is a symlink, print the contents of the link and\n\
  exit successfully.  Otherwise print nothing and fail.\n\
\n\
--help      display this help and exit\n\
--version   output version information and exit\n\n", argv[0]);
        fputs ("Email bug reports to tex-k@mail.tug.org.\n", stdout);
        exit(0);
    } else if (argc > 1 && strcmp (argv[1], "--version") == 0) {
        printf ("%s (%s)\n\
Copyright (C) 1998 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 one arg */
    if (argc != 2) {
        fprintf(stderr, "%s: Need exactly one argument.\n\
Try `%s --help' for more information.\n", argv[0], argv[0]);
        exit(1);
    }

#ifdef S_ISLNK
    status = readlink(argv[1], path, PATH_MAX);
    if (status != -1) {
        printf("%.*s\n", status, path);
        return 0;
    }
#endif
    return 1;
}

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