source: MondoRescue/trunk/mindi-busybox/coreutils/realpath.c@ 929

/* vi: set sw=4 ts=4: */

/* BB_AUDIT SUSv3 N/A -- Apparently a busybox extension. */

/* Mar 16, 2003      Manuel Novoa III   (mjn3@codepoet.org)
 *
 * Now does proper error checking on output and returns a failure exit code
 * if one or more paths can not be resolved.
 *
 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
 */

#include <limits.h>
#include <stdlib.h>
#include "busybox.h"

int realpath_main(int argc, char **argv)
{
    int retval = EXIT_SUCCESS;

#if PATH_MAX > (BUFSIZ+1)
    RESERVE_CONFIG_BUFFER(resolved_path, PATH_MAX);
# define resolved_path_MUST_FREE 1
#else
#define resolved_path bb_common_bufsiz1
# define resolved_path_MUST_FREE 0
#endif

    if (--argc == 0) {
        bb_show_usage();
    }

    do {
        argv++;
        if (realpath(*argv, resolved_path) != NULL) {
            puts(resolved_path);
        } else {
            retval = EXIT_FAILURE;
            bb_perror_msg("%s", *argv);
        }
    } while (--argc);

#if ENABLE_FEATURE_CLEAN_UP && resolved_path_MUST_FREE
    RELEASE_CONFIG_BUFFER(resolved_path);
#endif

    bb_fflush_stdout_and_exit(retval);
}