Revert last commit due to changed semantics found by make release.

1 files changed, 10 insertions, 10 deletions

diff --git a/src/lib/libc/stdlib/realpath.c b/src/lib/libc/stdlib/realpath.c
index 8c83ec2b81..e06db59088 100644
--- a/src/lib/libc/stdlib/realpath.c
+++ b/src/lib/libc/stdlib/realpath.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: realpath.c,v 1.17 2014/10/18 20:43:52 doug Exp $ */
+/*      $OpenBSD: realpath.c,v 1.18 2014/10/19 03:56:28 doug Exp $ */
 /*
  * Copyright (c) 2003 Constantin S. Svintsoff <kostik@iclub.nsu.ru>
  *
@@ -54,10 +54,6 @@ realpath(const char *path, char *resolved)
         int serrno, slen, mem_allocated;
         char left[PATH_MAX], next_token[PATH_MAX], symlink[PATH_MAX];
 
-        if (path == NULL) {
-                errno = EINVAL;
-                return (NULL);
-        }
         if (path[0] == '\0') {
                 errno = ENOENT;
                 return (NULL);
@@ -143,15 +139,22 @@ realpath(const char *path, char *resolved)
                 }
 
                 /*
-                 * Append the next path component and lstat() it.
+                 * Append the next path component and lstat() it. If
+                 * lstat() fails we still can return successfully if
+                 * there are no more path components left.
                  */
                 resolved_len = strlcat(resolved, next_token, PATH_MAX);
                 if (resolved_len >= PATH_MAX) {
                         errno = ENAMETOOLONG;
                         goto err;
                 }
-                if (lstat(resolved, &sb) != 0)
+                if (lstat(resolved, &sb) != 0) {
+                        if (errno == ENOENT && p == NULL) {
+                                errno = serrno;
+                                return (resolved);
+                        }
                         goto err;
+                }
                 if (S_ISLNK(sb.st_mode)) {
                         if (symlinks++ > MAXSYMLINKS) {
                                 errno = ELOOP;
@@ -193,9 +196,6 @@ realpath(const char *path, char *resolved)
                                 }
                         }
                         left_len = strlcpy(left, symlink, sizeof(left));
-                } else if (!S_ISDIR(sb.st_mode) && p != NULL) {
-                        errno = ENOTDIR;
-                        goto err;
                 }
         }