source: vendor/bash/3.1/examples/loadables/unlink.c

/* unlink - remove a directory entry */

/* Should only be used to remove directories by a superuser prepared to let
   fsck clean up the file system. */

#include <config.h>

#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

#include <stdio.h>
#include <errno.h>

#include "builtins.h"
#include "shell.h"

#ifndef errno
extern int errno;
#endif

unlink_builtin (list)
     WORD_LIST *list;
{
  if (list == 0)
    {
      builtin_usage ();
      return (EX_USAGE);
    }

  if (unlink (list->word->word) != 0)
    {
      builtin_error ("%s: cannot unlink: %s", list->word->word, strerror (errno));
      return (EXECUTION_FAILURE);
    }

  return (EXECUTION_SUCCESS);
}

char *unlink_doc[] = {
        "Remove a directory entry.",
        (char *)NULL
};

struct builtin unlink_struct = {
        "unlink",               /* builtin name */
        unlink_builtin,         /* function implementing the builtin */
        BUILTIN_ENABLED,        /* initial flags for builtin */
        unlink_doc,             /* array of long documentation strings. */
        "unlink name",          /* usage synopsis; becomes short_doc */
        0                       /* reserved for internal use */
};