Patch from Michael Tokarev:

Scenario:

  touch x -- creates plain file name `x'
  mkdir x -- exits successefully

libbb/make_directory.c, bb_make_directory(), contains
the following code:

        if (mkdir(path, 0777) < 0) {
            /* If we failed for any other reason than the directory
             * already exists, output a diagnostic and return -1.*/
            if (errno != EEXIST) {
                fail_msg = "create";
                umask(mask);
                break;
            }
            /* Since the directory exists, don't attempt to change
             * permissions if it was the full target.  Note that
             * this is not an error conditon. */
            if (!c) {
                umask(mask);
                return 0;
            }
        }

The assumption that EEXIST error is due to that the *directory*
already exists is wrong: any file type with that name will cause
this error to be returned.  Proper way IMHO will be is to stat()
the path and check whenever this is really a directory.  Below
(attached) is a patch to fix this issue.

1 files changed, 5 insertions, 1 deletions

diff --git a/libbb/make_directory.c b/libbb/make_directory.c
index 710537dd1..d07ccb93c 100644
--- a/libbb/make_directory.c
+++ b/libbb/make_directory.c
@@ -37,6 +37,7 @@
 
 #include <errno.h>
 #include <unistd.h>
+#include <sys/stat.h>
 #include "libbb.h"
 
 int bb_make_directory (char *path, long mode, int flags)
@@ -45,6 +46,7 @@ int bb_make_directory (char *path, long mode, int flags)
         const char *fail_msg;
         char *s = path;
         char c;
+        struct stat st;
 
         mask = umask(0);
         umask(mask & ~0300);
@@ -70,7 +72,9 @@ int bb_make_directory (char *path, long mode, int flags)
                 if (mkdir(path, 0777) < 0) {
                         /* If we failed for any other reason than the directory
                          * already exists, output a diagnostic and return -1.*/
-                        if (errno != EEXIST) {
+                        if (errno != EEXIST
+                                || !(flags & FILEUTILS_RECUR)
+                                || (stat(path, &st) < 0 || !S_ISDIR(st.st_mode))) {
                                 fail_msg = "create";
                                 umask(mask);
                                 break;