source: MondoRescue/branches/2.2.5/mindi-busybox/debianutils/which.c@ 1765

/* vi: set sw=4 ts=4: */
/*
 * Which implementation for busybox
 *
 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
 * Copyright (C) 2006 Gabriel Somlo <somlo at cmu.edu>
 *
 * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
 *
 * Based on which from debianutils
 */

#include "libbb.h"

int which_main(int argc, char **argv);
int which_main(int argc, char **argv)
{
    int status = EXIT_SUCCESS;
    char *p;

    if (argc <= 1 || argv[1][0] == '-') {
        bb_show_usage();
    }

/* We shouldn't do this. Ever. Not our business.
    if (!getenv("PATH")) {
        putenv((char*)bb_PATH_root_path);
    }
*/

    while (--argc > 0) {
        argv++;
        if (strchr(*argv, '/')) {
            if (execable_file(*argv)) {
                puts(*argv);
                continue;
            }
        } else {
            p = find_execable(*argv);
            if (p) {
                puts(p);
                free(p);
                continue;
            }
        }
        status = EXIT_FAILURE;
    }

    fflush_stdout_and_exit(status);
}