From 03220cb04a4607ad359847839b143dcf7b20149a Mon Sep 17 00:00:00 2001
From: Patrick Allaert <patrickallaert@php.net>
Date: Mon, 15 Jun 2009 15:03:31 +0000
Subject: [PATCH] Refactoring that will help fixing #48441

---
 ext/ldap/ldap.c | 122 ++++++++++++++++++++++--------------------------
 1 file changed, 56 insertions(+), 66 deletions(-)

diff --git a/ext/ldap/ldap.c b/ext/ldap/ldap.c
index 20867fea32..c93ed8cdad 100644
--- a/ext/ldap/ldap.c
+++ b/ext/ldap/ldap.c
@@ -603,6 +603,7 @@ static void php_ldap_do_search(INTERNAL_FUNCTION_PARAMETERS, int scope)
 	int num_attribs = 0;
 	int i, errno;
 	int myargcount = ZEND_NUM_ARGS();
+	int ret = 1;
 
 	if (zend_parse_parameters(myargcount TSRMLS_CC, "ZZZ|ZZZZZ", &link, &base_dn, &filter, &attrs, &attrsonly, 
 		&sizelimit, &timelimit, &deref) == FAILURE) {
@@ -630,7 +631,8 @@ static void php_ldap_do_search(INTERNAL_FUNCTION_PARAMETERS, int scope)
 		case 4 : 
 			if (Z_TYPE_PP(attrs) != IS_ARRAY) {
 				php_error_docref(NULL TSRMLS_CC, E_WARNING, "Expected Array as last element");
-				RETURN_FALSE;
+				ret = 0;
+				goto cleanup;
 			}
 
 			num_attribs = zend_hash_num_elements(Z_ARRVAL_PP(attrs));
@@ -639,8 +641,8 @@ static void php_ldap_do_search(INTERNAL_FUNCTION_PARAMETERS, int scope)
 			for (i = 0; i<num_attribs; i++) {
 				if (zend_hash_index_find(Z_ARRVAL_PP(attrs), i, (void **) &attr) != SUCCESS) {
 					php_error_docref(NULL TSRMLS_CC, E_WARNING, "Array initialization wrong");
-					efree(ldap_attrs);
-					RETURN_FALSE;
+					ret = 0;
+					goto cleanup;
 				}
 
 				SEPARATE_ZVAL(attr);
@@ -650,16 +652,7 @@ static void php_ldap_do_search(INTERNAL_FUNCTION_PARAMETERS, int scope)
 			ldap_attrs[num_attribs] = NULL;
 		
 		case 3 :
-			/* parallel search? */
-			if (Z_TYPE_PP(link) != IS_ARRAY) {
-				convert_to_string_ex(filter);
-				ldap_filter = Z_STRVAL_PP(filter);
-
-				/* If anything else than string is passed, ldap_base_dn = NULL */
-				if (Z_TYPE_PP(base_dn) == IS_STRING) {
-					ldap_base_dn = Z_STRVAL_PP(base_dn);
-				}
-			}
+		
 		break;
 
 		default:
@@ -676,20 +669,16 @@ static void php_ldap_do_search(INTERNAL_FUNCTION_PARAMETERS, int scope)
 		nlinks = zend_hash_num_elements(Z_ARRVAL_PP(link));
 		if (nlinks == 0) {
 			php_error_docref(NULL TSRMLS_CC, E_WARNING, "No links in link array");
-			if (ldap_attrs != NULL) {
-				efree(ldap_attrs);
-			}
-			RETURN_FALSE;
+			ret = 0;
+			goto cleanup;
 		}
 
 		if (Z_TYPE_PP(base_dn) == IS_ARRAY) {
 			nbases = zend_hash_num_elements(Z_ARRVAL_PP(base_dn));
 			if (nbases != nlinks) {
 				php_error_docref(NULL TSRMLS_CC, E_WARNING, "Base must either be a string, or an array with the same number of elements as the links array");
-				if (ldap_attrs != NULL) {
-					efree(ldap_attrs);
-				}
-				RETURN_FALSE;
+				ret = 0;
+				goto cleanup;
 			}
 			zend_hash_internal_pointer_reset(Z_ARRVAL_PP(base_dn));
 		} else {
@@ -706,10 +695,8 @@ static void php_ldap_do_search(INTERNAL_FUNCTION_PARAMETERS, int scope)
 			nfilters = zend_hash_num_elements(Z_ARRVAL_PP(filter));
 			if (nfilters != nlinks) {
 				php_error_docref(NULL TSRMLS_CC, E_WARNING, "Filter must either be a string, or an array with the same number of elements as the links array");
-				if (ldap_attrs != NULL) {
-					efree(ldap_attrs);
-				}
-				RETURN_FALSE;
+				ret = 0;
+				goto cleanup;
 			}
 			zend_hash_internal_pointer_reset(Z_ARRVAL_PP(filter));
 		} else {
@@ -727,12 +714,8 @@ static void php_ldap_do_search(INTERNAL_FUNCTION_PARAMETERS, int scope)
 
 			ld = (ldap_linkdata *) zend_fetch_resource(entry TSRMLS_CC, -1, "ldap link", NULL, 1, le_link);
 			if (ld == NULL) {
-				efree(lds);
-				efree(rcs);
-				if (ldap_attrs != NULL) {
-					efree(ldap_attrs);
-				}
-				RETURN_FALSE;
+				ret = 0;
+				goto cleanup_parallel;
 			}
 			if (nbases != 0) { /* base_dn an array? */
 				zend_hash_get_current_data(Z_ARRVAL_PP(base_dn), (void **)&entry);
@@ -760,10 +743,6 @@ static void php_ldap_do_search(INTERNAL_FUNCTION_PARAMETERS, int scope)
 			zend_hash_move_forward(Z_ARRVAL_PP(link));
 		}
 		
-		if (ldap_attrs != NULL) {
-			efree(ldap_attrs);
-		}
-		
 		array_init(return_value);
 
 		/* Collect results from the searches */
@@ -779,50 +758,61 @@ static void php_ldap_do_search(INTERNAL_FUNCTION_PARAMETERS, int scope)
 				add_next_index_bool(return_value, 0);
 			}
 		}
+
+cleanup_parallel:
 		efree(lds);
 		efree(rcs);
-		return;
-	}
+	} else {
+		convert_to_string_ex(filter);
+		ldap_filter = Z_STRVAL_PP(filter);
 
-	ld = (ldap_linkdata *) zend_fetch_resource(link TSRMLS_CC, -1, "ldap link", NULL, 1, le_link);
-	if (ld == NULL) {
-		if (ldap_attrs != NULL) {
-			efree(ldap_attrs);
+		/* If anything else than string is passed, ldap_base_dn = NULL */
+		if (Z_TYPE_PP(base_dn) == IS_STRING) {
+			ldap_base_dn = Z_STRVAL_PP(base_dn);
 		}
-		RETURN_FALSE;
-	}
-
-	php_set_opts(ld->link, ldap_sizelimit, ldap_timelimit, ldap_deref);
 
-	/* Run the actual search */	
-	errno = ldap_search_s(ld->link, ldap_base_dn, scope, ldap_filter, ldap_attrs, ldap_attrsonly, &ldap_res);
+		ld = (ldap_linkdata *) zend_fetch_resource(link TSRMLS_CC, -1, "ldap link", NULL, 1, le_link);
+		if (ld == NULL) {
+			ret = 0;
+			goto cleanup;
+		}
 
-	if (ldap_attrs != NULL) {
-		efree(ldap_attrs);
-	}
+		php_set_opts(ld->link, ldap_sizelimit, ldap_timelimit, ldap_deref);
 
-	if (errno != LDAP_SUCCESS
-		&& errno != LDAP_SIZELIMIT_EXCEEDED
+		/* Run the actual search */	
+		errno = ldap_search_s(ld->link, ldap_base_dn, scope, ldap_filter, ldap_attrs, ldap_attrsonly, &ldap_res);
+	
+		if (errno != LDAP_SUCCESS
+			&& errno != LDAP_SIZELIMIT_EXCEEDED
 #ifdef LDAP_ADMINLIMIT_EXCEEDED
-		&& errno != LDAP_ADMINLIMIT_EXCEEDED
+			&& errno != LDAP_ADMINLIMIT_EXCEEDED
 #endif
 #ifdef LDAP_REFERRAL
-		&& errno != LDAP_REFERRAL
+			&& errno != LDAP_REFERRAL
 #endif
-	) {
-		php_error_docref(NULL TSRMLS_CC, E_WARNING, "Search: %s", ldap_err2string(errno));
-		RETVAL_FALSE; 
-	} else {
-		if (errno == LDAP_SIZELIMIT_EXCEEDED) {
-			php_error_docref(NULL TSRMLS_CC, E_WARNING, "Partial search results returned: Sizelimit exceeded");
-		}
+		) {
+			php_error_docref(NULL TSRMLS_CC, E_WARNING, "Search: %s", ldap_err2string(errno));
+			ret = 0;
+		} else {
+			if (errno == LDAP_SIZELIMIT_EXCEEDED) {
+				php_error_docref(NULL TSRMLS_CC, E_WARNING, "Partial search results returned: Sizelimit exceeded");
+			}
 #ifdef LDAP_ADMINLIMIT_EXCEEDED
-		else if (errno == LDAP_ADMINLIMIT_EXCEEDED) {
-			php_error_docref(NULL TSRMLS_CC, E_WARNING, "Partial search results returned: Adminlimit exceeded");
-		}
+			else if (errno == LDAP_ADMINLIMIT_EXCEEDED) {
+				php_error_docref(NULL TSRMLS_CC, E_WARNING, "Partial search results returned: Adminlimit exceeded");
+			}
 #endif
-		
-		ZEND_REGISTER_RESOURCE(return_value, ldap_res, le_result);
+			
+			ZEND_REGISTER_RESOURCE(return_value, ldap_res, le_result);
+		}
+	}
+
+cleanup:
+	if (ldap_attrs != NULL) {
+		efree(ldap_attrs);
+	}
+	if (!ret) {
+		RETVAL_BOOL(ret);
 	}
 }
 /* }}} */
-- 
2.40.0