1 files changed, 28 insertions, 5 deletions

diff --git a/coreutils/readlink.c b/coreutils/readlink.c
index 721fd8597..bcf352e74 100644
--- a/coreutils/readlink.c
+++ b/coreutils/readlink.c
@@ -6,9 +6,31 @@
  *
  * Licensed under GPL v2 or later, see file LICENSE in this tarball for details.
  */
-
 #include "libbb.h"
 
+/*
+ * # readlink --version
+ * readlink (GNU coreutils) 6.10
+ * # readlink --help
+ *   -f, --canonicalize
+ *      canonicalize by following every symlink in
+ *      every component of the given name recursively;
+ *      all but the last component must exist
+ *   -e, --canonicalize-existing
+ *      canonicalize by following every symlink in
+ *      every component of the given name recursively,
+ *      all components must exist
+ *   -m, --canonicalize-missing
+ *      canonicalize by following every symlink in
+ *      every component of the given name recursively,
+ *      without requirements on components existence
+ *   -n, --no-newline              do not output the trailing newline
+ *   -q, --quiet, -s, --silent     suppress most error messages
+ *   -v, --verbose                 report error messages
+ *
+ * bbox supports: -f -n -v (fully), -q -s (accepts but ignores)
+ */
+
 int readlink_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int readlink_main(int argc UNUSED_PARAM, char **argv)
 {
@@ -20,7 +42,7 @@ int readlink_main(int argc UNUSED_PARAM, char **argv)
                 unsigned opt;
                 /* We need exactly one non-option argument.  */
                 opt_complementary = "=1";
-                opt = getopt32(argv, "f");
+                opt = getopt32(argv, "fnvsq");
                 fname = argv[optind];
         )
         SKIP_FEATURE_READLINK_FOLLOW(
@@ -30,9 +52,10 @@ int readlink_main(int argc UNUSED_PARAM, char **argv)
         )
 
         /* compat: coreutils readlink reports errors silently via exit code */
-        logmode = LOGMODE_NONE;
+        if (!(opt & 4)) /* not -v */
+                logmode = LOGMODE_NONE;
 
-        if (opt) {
+        if (opt & 1) { /* -f */
                 buf = realpath(fname, pathbuf);
         } else {
                 buf = xmalloc_readlink_or_warn(fname);
@@ -40,7 +63,7 @@ int readlink_main(int argc UNUSED_PARAM, char **argv)
 
         if (!buf)
                 return EXIT_FAILURE;
-        puts(buf);
+        printf((opt & 2) ? "%s" : "%s\n", buf);
 
         if (ENABLE_FEATURE_CLEAN_UP && !opt)
                 free(buf);