*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
+//config:config READLINK
+//config: bool "readlink (3.6 kb)"
+//config: default y
+//config: help
+//config: This program reads a symbolic link and returns the name
+//config: of the file it points to
+//config:
+//config:config FEATURE_READLINK_FOLLOW
+//config: bool "Enable canonicalization by following all symlinks (-f)"
+//config: default y
+//config: depends on READLINK
+//config: help
+//config: Enable the readlink option (-f).
+
+//applet:IF_READLINK(APPLET_NOFORK(readlink, readlink, BB_DIR_USR_BIN, BB_SUID_DROP, readlink))
+
+//kbuild:lib-$(CONFIG_READLINK) += readlink.o
//usage:#define readlink_trivial_usage
//usage: IF_FEATURE_READLINK_FOLLOW("[-fnv] ") "FILE"
IF_FEATURE_READLINK_FOLLOW(
unsigned opt;
/* We need exactly one non-option argument. */
- opt_complementary = "=1";
- opt = getopt32(argv, "fnvsq");
+ opt = getopt32(argv, "^" "fnvsq" "\0" "=1");
fname = argv[optind];
)
IF_NOT_FEATURE_READLINK_FOLLOW(
if (!(opt & 4)) /* not -v */
logmode = LOGMODE_NONE;
+ /* NOFORK: only one alloc is allowed; must free */
if (opt & 1) { /* -f */
- buf = xmalloc_realpath(fname);
+ buf = xmalloc_realpath_coreutils(fname);
} else {
buf = xmalloc_readlink_or_warn(fname);
}
if (!buf)
return EXIT_FAILURE;
printf((opt & 2) ? "%s" : "%s\n", buf);
-
- if (ENABLE_FEATURE_CLEAN_UP)
- free(buf);
+ free(buf);
fflush_stdout_and_exit(EXIT_SUCCESS);
}