From: Robert Thompson <ab5602@php.net>
Date: Mon, 8 Oct 2007 02:49:26 +0000 (+0000)
Subject: Fix for bug 41822 and 41899.  expand_filepath() will now return a relative path under... 
X-Git-Tag: php-5.2.5RC1~42
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=477e2b315b7ed884bcfc4981df65ef1ad9bf06db;p=php

Fix for bug 41822 and 41899.  expand_filepath() will now return a relative path under the specific situation where getcwd() returns NULL and the file is
still readable.  As far as I have been able to tell, this fix only applies to the Solaris OS where files in directories with (--x) cannot getcwd().
---

diff --git a/main/fopen_wrappers.c b/main/fopen_wrappers.c
index 63f608fb58..31c983331b 100644
--- a/main/fopen_wrappers.c
+++ b/main/fopen_wrappers.c
@@ -604,18 +604,30 @@ PHPAPI char *expand_filepath(const char *filepath, char *real_path TSRMLS_DC)
 {
 	cwd_state new_state;
 	char cwd[MAXPATHLEN];
-	char *result;
 
 	if (!filepath[0]) {
 		return NULL;
 	} else if (IS_ABSOLUTE_PATH(filepath, strlen(filepath))) {
 		cwd[0] = '\0';
-	} else{
-		result = VCWD_GETCWD(cwd, MAXPATHLEN);
-		if (!result) {
+	} else {
+		const char *iam = SG(request_info).path_translated;
+		char *result = VCWD_GETCWD(cwd, MAXPATHLEN);
+		if (!result && (iam != filepath)) {
+			int fdtest = -1;
+			fdtest = VCWD_OPEN(filepath, O_RDONLY);
+			if (fdtest != -1) {
+				/* return a relative file path if for any reason 
+				   we cannot cannot getcwd() and the requested, 
+				   relatively referenced file is accessible */
+				int copy_len = strlen(filepath)>MAXPATHLEN-1?MAXPATHLEN-1:strlen(filepath);
+				real_path = estrndup(filepath, copy_len);
+				return real_path;
+			    }	
+			 }
+		else {
 			cwd[0] = '\0';
+			}
 		}
-	}
 
 	new_state.cwd = strdup(cwd);
 	new_state.cwd_length = strlen(cwd);