Jani Taskinen wrote:
Sriram Natarajan wrote:
Hi
I was looking into CR: 48774(http://bugs.php.net/bug.php?id=48774&thanks=3) and was hoping if some one can kindly review this patch. This patch does address the SEGV issue reported in the bug. Can this be applied to PHP 5.3 and PHP 5.2 as well ?



Fix your whitespace first. We use tabs only in .c files..

Please find the updated patch below
--- interface.c.ORIG    2009-07-09 15:24:00.000000000 -0700
+++ interface.c 2009-07-15 16:34:17.000000000 -0700
@@ -1328,6 +1328,7 @@
 {
        php_curl        *ch;
        CURL            *cp;
+       zval            *clone;
        char            *url = NULL;
        int             url_len = 0;
 
@@ -1353,6 +1354,9 @@
 
        ch->uses = 0;
 
+       MAKE_STD_ZVAL(clone);
+       ch->clone = clone;
+
        curl_easy_setopt(ch->cp, CURLOPT_NOPROGRESS,        1);
        curl_easy_setopt(ch->cp, CURLOPT_VERBOSE,           0);
        curl_easy_setopt(ch->cp, CURLOPT_ERRORBUFFER,       ch->err.str);
@@ -1448,6 +1452,10 @@
        zend_llist_copy(&dupch->to_free.slist, &ch->to_free.slist);
        zend_llist_copy(&dupch->to_free.post, &ch->to_free.post);
 
+       /* Keep track of cloned copies to avoid invoking curl destructors for 
every clone */
+       Z_ADDREF_P(ch->clone);
+       dupch->clone = ch->clone;
+
        ZEND_REGISTER_RESOURCE(return_value, dupch, le_curl);
        dupch->id = Z_LVAL_P(return_value);
 }
@@ -2298,8 +2306,19 @@
 #if LIBCURL_VERSION_NUM < 0x071101
        zend_llist_clean(&ch->to_free.str);
 #endif
-       zend_llist_clean(&ch->to_free.slist);
-       zend_llist_clean(&ch->to_free.post);
+
+       /* cURL destructors should be invoked only by last curl handle */
+       if (Z_REFCOUNT_P(ch->clone) <= 1) {
+               zend_llist_clean(&ch->to_free.slist);
+               zend_llist_clean(&ch->to_free.post);
+               zval_ptr_dtor(&ch->clone);
+       } else {
+               Z_DELREF_P(ch->clone);
+               ch->to_free.slist.dtor = NULL;
+               ch->to_free.post.dtor = NULL;
+               zend_llist_clean(&ch->to_free.slist);
+               zend_llist_clean(&ch->to_free.post);
+       }
 
        if (ch->handlers->write->buf.len > 0) {
                smart_str_free(&ch->handlers->write->buf);
--- php_curl.h.ORIG     2009-07-14 23:42:08.000000000 -0700
+++ php_curl.h  2009-07-15 15:25:34.000000000 -0700
@@ -139,6 +139,7 @@
        long                     id;
        unsigned int             uses;
        zend_bool                in_callback;
+       zval                     *clone;
 } php_curl;
 
 typedef struct {
--- /dev/null   2009-05-08 12:42:52.457160733 -0700
+++ tests/curl_copy_handle_basic_007.phpt       2009-07-14 17:40:47.000000000 
-0700
@@ -0,0 +1,44 @@
+--TEST--
+Test curl_copy_handle() with simple POST
+--SKIPIF--
+<?php if (!extension_loaded("curl") || false === 
getenv('PHP_CURL_HTTP_REMOTE_SERVER')) print "skip"; ?>
+--FILE--
+<?php
+  $host = getenv('PHP_CURL_HTTP_REMOTE_SERVER');
+
+  echo '*** Testing curl copy handle with simple POST using array as arguments 
***' . "\n";
+
+  $url = "{$host}/get.php?test=getpost";
+  $ch = curl_init();
+
+  ob_start(); // start output buffering
+  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+  curl_setopt($ch, CURLOPT_POST, 1);
+  curl_setopt($ch, CURLOPT_POSTFIELDS, array("Hello" => "World", "Foo" => 
"Bar", "Person" => "John Doe"));
+  curl_setopt($ch, CURLOPT_URL, $url); //set the url we want to use
+  
+  $copy = curl_copy_handle($ch);
+  curl_close($ch);
+ 
+  $curl_content = curl_exec($copy);
+  curl_close($copy);
+
+  var_dump( $curl_content );
+?>
+===DONE===
+--EXPECTF--
+*** Testing curl copy handle with simple POST using array as arguments ***
+string(163) "array(1) {
+  ["test"]=>
+  string(7) "getpost"
+}
+array(3) {
+  ["Hello"]=>
+  string(5) "World"
+  ["Foo"]=>
+  string(3) "Bar"
+  ["Person"]=>
+  string(8) "John Doe"
+}
+"
+===DONE=== 

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