/* vi: set sw=4 ts=4: */ /* * Mini readlink implementation for busybox * * Copyright (C) 2000,2001 Matt Kraai <kraai@alumni.carnegiemellon.edu> * * Licensed under GPL v2, see file LICENSE in this tarball for details. */ #include <errno.h> #include <unistd.h> #include <stdlib.h> #include <getopt.h> #include "busybox.h" #define READLINK_FLAG_f (1 << 0) int readlink_main(int argc, char **argv) { char *buf; unsigned long opt = ENABLE_FEATURE_READLINK_FOLLOW ? bb_getopt_ulflags(argc, argv, "f") : 0; if (argc != (ENABLE_FEATURE_READLINK_FOLLOW ? optind + 1 : 2)) bb_show_usage(); if (opt & READLINK_FLAG_f) buf = realpath(argv[optind], NULL); else buf = xreadlink(argv[ENABLE_FEATURE_READLINK_FOLLOW ? optind : 1]); if (!buf) return EXIT_FAILURE; puts(buf); if (ENABLE_FEATURE_CLEAN_UP) free(buf); return EXIT_SUCCESS; }