blob: 0c2d544e4ab0af2a373dec7c328879f143659d6c
| 1 | /* vi: set sw=4 ts=4: */ |
| 2 | /* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org) |
| 3 | * |
| 4 | * Now does proper error checking on output and returns a failure exit code |
| 5 | * if one or more paths cannot be resolved. |
| 6 | * |
| 7 | * Licensed under GPLv2 or later, see file LICENSE in this source tree. |
| 8 | */ |
| 9 | //config:config REALPATH |
| 10 | //config: bool "realpath" |
| 11 | //config: default y |
| 12 | //config: help |
| 13 | //config: Return the canonicalized absolute pathname. |
| 14 | //config: This isn't provided by GNU shellutils, but where else does it belong. |
| 15 | |
| 16 | //applet:IF_REALPATH(APPLET(realpath, BB_DIR_USR_BIN, BB_SUID_DROP)) |
| 17 | |
| 18 | //kbuild:lib-$(CONFIG_REALPATH) += realpath.o |
| 19 | |
| 20 | /* BB_AUDIT SUSv3 N/A -- Apparently a busybox extension. */ |
| 21 | |
| 22 | //usage:#define realpath_trivial_usage |
| 23 | //usage: "FILE..." |
| 24 | //usage:#define realpath_full_usage "\n\n" |
| 25 | //usage: "Return the absolute pathnames of given FILE" |
| 26 | |
| 27 | #include "libbb.h" |
| 28 | |
| 29 | int realpath_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
| 30 | int realpath_main(int argc UNUSED_PARAM, char **argv) |
| 31 | { |
| 32 | int retval = EXIT_SUCCESS; |
| 33 | |
| 34 | if (!*++argv) { |
| 35 | bb_show_usage(); |
| 36 | } |
| 37 | |
| 38 | do { |
| 39 | char *resolved_path = xmalloc_realpath(*argv); |
| 40 | if (resolved_path != NULL) { |
| 41 | puts(resolved_path); |
| 42 | free(resolved_path); |
| 43 | } else { |
| 44 | retval = EXIT_FAILURE; |
| 45 | bb_simple_perror_msg(*argv); |
| 46 | } |
| 47 | } while (*++argv); |
| 48 | |
| 49 | fflush_stdout_and_exit(retval); |
| 50 | } |
| 51 |