From: Stefan Esser <sesser@php.net>
Date: Wed, 1 Dec 2004 22:56:33 +0000 (+0000)
Subject: MFH
X-Git-Tag: php-4.3.10RC2~22
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=8aa0e898011a5bb460e004f536cb569c3f44d6c9;p=php

MFH
---

diff --git a/TSRM/tsrm_virtual_cwd.c b/TSRM/tsrm_virtual_cwd.c
index f1edfe2e85..26104f262f 100644
--- a/TSRM/tsrm_virtual_cwd.c
+++ b/TSRM/tsrm_virtual_cwd.c
@@ -301,15 +301,21 @@ CWD_API int virtual_file_ex(cwd_state *state, const char *path, verify_path_func
 
 	if (path_length == 0) 
 		return (0);
+	if (path_length >= MAXPATHLEN)
+		return (1);
 
 #if !defined(TSRM_WIN32) && !defined(NETWARE)
 	/* cwd_length can be 0 when getcwd() fails.
 	 * This can happen under solaris when a dir does not have read permissions
 	 * but *does* have execute permissions */
 	if (IS_ABSOLUTE_PATH(path, path_length) || (state->cwd_length < 1)) {
-		if (use_realpath && realpath(path, resolved_path)) {
-			path = resolved_path;
-			path_length = strlen(path);
+		if (use_realpath)
+			if (realpath(path, resolved_path)) {
+				path = resolved_path;
+				path_length = strlen(path);
+			} else {
+				return 1;
+			}
 		}
 	} else { /* Concat current directory with relative path and then run realpath() on it */
 		char *tmp;
@@ -325,9 +331,18 @@ CWD_API int virtual_file_ex(cwd_state *state, const char *path, verify_path_func
 		memcpy(ptr, path, path_length);
 		ptr += path_length;
 		*ptr = '\0';
-		if (use_realpath && realpath(tmp, resolved_path)) {
-			path = resolved_path;
-			path_length = strlen(path);
+		if (strlen(tmp) >= MAXPATHLEN) {
+			free(tmp);
+			return 1;
+		}
+		if (use_realpath) {
+			if (realpath(tmp, resolved_path)) {
+				path = resolved_path;
+				path_length = strlen(path);
+			} else {
+				free(tmp);
+				return 1;
+			}
 		}
 		free(tmp);
 	}