From: Andrei Zmievski <andrei@php.net>
Date: Tue, 8 Feb 2000 17:19:43 +0000 (+0000)
Subject: Patches from Walter for strncmp() stuff.
X-Git-Tag: BEFORE_SAPIFICATION_FEB_10_2000~45
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=c2fd6752cf57d3dbe1094d04a9b3b70ae69379f8;p=php

Patches from Walter for strncmp() stuff.
---

diff --git a/Zend/zend_builtin_functions.c b/Zend/zend_builtin_functions.c
index 15a875e0e5..102ab24df8 100644
--- a/Zend/zend_builtin_functions.c
+++ b/Zend/zend_builtin_functions.c
@@ -31,6 +31,7 @@ static ZEND_FUNCTION(func_get_arg);
 static ZEND_FUNCTION(func_get_args);
 static ZEND_FUNCTION(strlen);
 static ZEND_FUNCTION(strcmp);
+static ZEND_FUNCTION(strncmp);
 static ZEND_FUNCTION(strcasecmp);
 static ZEND_FUNCTION(each);
 static ZEND_FUNCTION(error_reporting);
@@ -55,6 +56,7 @@ static zend_function_entry builtin_functions[] = {
 	ZEND_FE(func_get_args,		NULL)
 	ZEND_FE(strlen,				NULL)
 	ZEND_FE(strcmp,				NULL)
+	ZEND_FE(strncmp,			NULL)
 	ZEND_FE(strcasecmp,			NULL)
 	ZEND_FE(each,				first_arg_force_ref)
 	ZEND_FE(error_reporting,	NULL)
@@ -197,6 +199,22 @@ ZEND_FUNCTION(strcmp)
 }
 /* }}} */
 
+/* {{{ proto int strncmp(string str1, string str2, int len)
+   Binary safe string comparison */
+ZEND_FUNCTION(strncmp)
+{
+	zval **s1, **s2, **s3;
+	
+	if (ZEND_NUM_ARGS() != 3 || zend_get_parameters_ex(3, &s1, &s2, &s3) == FAILURE) {
+		WRONG_PARAM_COUNT;
+	}
+	convert_to_string_ex(s1);
+	convert_to_string_ex(s2);
+	convert_to_long_ex(s3);
+	RETURN_LONG(zend_binary_zval_strncmp(*s1,*s2,*s3));
+}
+/* }}} */
+
 /* {{{ proto int strcasecmp(string str1, string str2)
    Binary safe case-insensitive string comparison */
 ZEND_FUNCTION(strcasecmp)
diff --git a/Zend/zend_operators.c b/Zend/zend_operators.c
index 7bbf4ccc3f..b8de6d3562 100644
--- a/Zend/zend_operators.c
+++ b/Zend/zend_operators.c
@@ -1230,6 +1230,18 @@ ZEND_API int zend_binary_strcmp(char *s1, uint len1, char *s2, uint len2)
 	}
 }
 
+ZEND_API int zend_binary_strncmp(char *s1, uint len1, char *s2, uint len2, int length)
+{
+	int retval;
+	
+	retval = memcmp(s1, s2, MIN(length, MIN(len1, len2)));
+	if (!retval) {
+		return (len1 - len2);
+	} else {
+		return retval;
+	}
+}
+
 
 ZEND_API int zend_binary_strcasecmp(char *s1, uint len1, char *s2, uint len2)
 {
@@ -1256,6 +1268,11 @@ ZEND_API int zend_binary_zval_strcmp(zval *s1, zval *s2)
 	return zend_binary_strcmp(s1->value.str.val, s1->value.str.len, s2->value.str.val, s2->value.str.len);
 }
 
+ZEND_API int zend_binary_zval_strncmp(zval *s1, zval *s2, zval *s3)
+{
+	return zend_binary_strncmp(s1->value.str.val, s1->value.str.len, s2->value.str.val, s2->value.str.len, s3->value.lval);
+}
+
 
 ZEND_API int zend_binary_zval_strcasecmp(zval *s1, zval *s2)
 {
@@ -1263,7 +1280,6 @@ ZEND_API int zend_binary_zval_strcasecmp(zval *s1, zval *s2)
 }
 
 
-
 ZEND_API void zendi_smart_strcmp(zval *result, zval *s1, zval *s2)
 {
 	int ret1,ret2;
diff --git a/Zend/zend_operators.h b/Zend/zend_operators.h
index 82c4f7cbd0..e106f1481b 100644
--- a/Zend/zend_operators.h
+++ b/Zend/zend_operators.h
@@ -70,6 +70,7 @@ ZEND_API int compare_function(zval *result, zval *op1, zval *op2);
 
 ZEND_API void zend_str_tolower(char *str, unsigned int length);
 ZEND_API int zend_binary_zval_strcmp(zval *s1, zval *s2);
+ZEND_API int zend_binary_zval_strncmp(zval *s1, zval *s2, zval *s3);
 ZEND_API int zend_binary_zval_strcasecmp(zval *s1, zval *s2);
 ZEND_API int zend_binary_strcmp(char *s1, uint len1, char *s2, uint len2);
 ZEND_API int zend_binary_strcasecmp(char *s1, uint len1, char *s2, uint len2);