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djm pushed a commit to branch master
in repository openssh.

commit c71be375a69af00c2d0a0c24d8752bec12d8fd1b
Author: Damien Miller <djm@mindrot.org>
Date: Wed Oct 14 08:27:08 2015 +1100

upstream commit

revision 1.18
date: 2014/10/19 03:56:28; author: doug; state: Exp; lines: +9 -9; commitid: U6QxmtbXrGoc02S5;
Revert last commit due to changed semantics found by make release.
---
openbsd-compat/realpath.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/openbsd-compat/realpath.c b/openbsd-compat/realpath.c
index d2f34dd..e4729a8 100644
--- a/openbsd-compat/realpath.c
+++ b/openbsd-compat/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>
*
@@ -62,10 +62,6 @@ 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);
@@ -151,15 +147,22 @@ 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;
@@ -202,9 +205,6 @@ 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;
}
}


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