From 7e4bd9fb606a1564390e3b5359e13f21bc1a963f Mon Sep 17 00:00:00 2001
From: Andrei Zmievski <andrei@php.net>
Date: Thu, 9 Dec 1999 23:45:30 +0000
Subject: [PATCH] (PHP strtoupper, strtolower, substr_replace) Made
 binary-safe. @Made strtoupper(), strtolower(), substr_replace() binary-safe.
 (Andrei)

---
 TODO                      |  3 ---
 ext/ldap/ldap.c           |  4 +++-
 ext/standard/php_string.h |  4 ++--
 ext/standard/string.c     | 22 ++++++++++++----------
 ext/xml/xml.c             |  2 +-
 5 files changed, 18 insertions(+), 17 deletions(-)

diff --git a/TODO b/TODO
index 47ecd11c5d..3749336e49 100644
--- a/TODO
+++ b/TODO
@@ -29,15 +29,12 @@ ext/standard
 		strcspn()
 		implode()
 		strtok()
-		strtoupper()
-		strtolower()
 		basename()
 		dirname()
 		stristr()
 		strstr()
 		strrpos()
 		strrchr()
-		substr_replace()
 		quotemeta()
 		ucwords()
 		strip_tags()
diff --git a/ext/ldap/ldap.c b/ext/ldap/ldap.c
index 0ca3d18c40..45f3494dbc 100644
--- a/ext/ldap/ldap.c
+++ b/ext/ldap/ldap.c
@@ -774,6 +774,7 @@ PHP_FUNCTION(ldap_get_entries)
 	int attr_count, entry_count;
 	BerElement *ber;
 	char *attribute;
+	size_t attr_len;
 	char **ldap_value;
 	char *dn;
 
@@ -826,7 +827,8 @@ PHP_FUNCTION(ldap_get_entries)
 			}	
 			ldap_value_free(ldap_value);
 
-			zend_hash_update(tmp1->value.ht, php_strtolower(attribute), strlen(attribute)+1, (void *) &tmp2, sizeof(pval *), NULL);
+			attr_len = strlen(attribute);
+			zend_hash_update(tmp1->value.ht, php_strtolower(attribute, attr_len), attr_len+1, (void *) &tmp2, sizeof(pval *), NULL);
 			add_index_string(tmp1, attr_count, attribute, 1);
 
 			attr_count++;
diff --git a/ext/standard/php_string.h b/ext/standard/php_string.h
index 93e4ab18c1..2f9041491d 100644
--- a/ext/standard/php_string.h
+++ b/ext/standard/php_string.h
@@ -84,8 +84,8 @@ PHP_FUNCTION(strip_tags);
 PHP_FUNCTION(str_repeat);
 PHP_FUNCTION(substr_replace);
 
-extern PHPAPI char *php_strtoupper(char *s);
-extern PHPAPI char *php_strtolower(char *s);
+extern PHPAPI char *php_strtoupper(char *s, size_t len);
+extern PHPAPI char *php_strtolower(char *s, size_t len);
 extern PHPAPI char *php_strtr(char *string, int len, char *str_from, char *str_to, int trlen);
 extern PHPAPI char *php_addslashes(char *string, int length, int *new_length, int freeit);
 extern PHPAPI char *php_addcslashes(char *string, int length, int *new_length, int freeit, char *what, int wlength);
diff --git a/ext/standard/string.c b/ext/standard/string.c
index 84665836a8..53b6a9063a 100644
--- a/ext/standard/string.c
+++ b/ext/standard/string.c
@@ -389,13 +389,14 @@ PHP_FUNCTION(strtok)
 }
 /* }}} */
 
-PHPAPI char *php_strtoupper(char *s)
+PHPAPI char *php_strtoupper(char *s, size_t len)
 {
 	char *c;
 	int ch;
+	int i;
 
 	c = s;
-	while (*c) {
+	for (i=0; i<len; i++) {
 		ch = toupper((unsigned char)*c);
 		*c++ = ch;
 	}
@@ -415,18 +416,18 @@ PHP_FUNCTION(strtoupper)
 
 	*return_value = **arg;
 	zval_copy_ctor(return_value);
-	php_strtoupper(return_value->value.str.val);
+	php_strtoupper(return_value->value.str.val, return_value->value.str.len);
 }
 /* }}} */
 
 
-PHPAPI char *php_strtolower(char *s)
+PHPAPI char *php_strtolower(char *s, size_t len)
 {
 	register int ch;
 	char *c;
 
 	c = s;
-	while (*c) {
+	for (i=0; i<len; i++) {
 		ch = tolower((unsigned char)*c);
 		*c++ = ch;
 	}
@@ -447,7 +448,7 @@ PHP_FUNCTION(strtolower)
 
 	*return_value = **str;
 	zval_copy_ctor(return_value);
-	ret = php_strtolower(return_value->value.str.val);
+	ret = php_strtolower(return_value->value.str.val, return_value->value.str.len);
 }
 /* }}} */
 
@@ -933,11 +934,12 @@ PHP_FUNCTION(substr_replace)
 	result_len = (*string)->value.str.len - l + (*repl)->value.str.len;
 	result = (char *)ecalloc(result_len + 1, sizeof(char *));
 
-	strncat(result, (*string)->value.str.val, f);
-	strcat(result, (*repl)->value.str.val);
-	strcat(result, (*string)->value.str.val + f + l);
+	memcpy(result, (*string)->value.str.val, f);
+	memcpy(&result[f], (*repl)->value.str.val, (*repl)->value.str.len);
+	memcpy(&result[f + (*repl)->value.str.len], (*string)->value.str.val + f + l,
+          (*string)->value.str.len - f - l);
 
-	RETVAL_STRING(result, 0);
+	RETVAL_STRINGL(result, result_len, 0);
 }
 /* }}} */
 
diff --git a/ext/xml/xml.c b/ext/xml/xml.c
index 7547a9bff2..15f1638c56 100644
--- a/ext/xml/xml.c
+++ b/ext/xml/xml.c
@@ -628,7 +628,7 @@ void _xml_startElementHandler(void *userData, const char *name,
 		parser->level++;
 
 		if (parser->case_folding) {
-			name = php_strtoupper(estrdup(name));
+			name = php_strtoupper(estrdup(name), strlen(name));
 		}
 
 		if (parser->startElementHandler) {
-- 
2.40.0