From: Joseph Sutton <josephsutton@catalyst.net.nz>
Date: Wed, 8 Nov 2023 23:39:02 +0000 (+1300)
Subject: util/charset: Add utf16_len()
X-Git-Tag: talloc-2.4.2~681
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=516f35b5a114136eaae283a53a6281b9895e29ed;p=thirdparty%2Fsamba.git

util/charset: Add utf16_len()

This function returns the length in bytes of a UTF‐16 string excluding
the null terminator.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
---

diff --git a/lib/util/charset/charset.h b/lib/util/charset/charset.h
index f350e748c07..0f3c6750a4f 100644
--- a/lib/util/charset/charset.h
+++ b/lib/util/charset/charset.h
@@ -103,6 +103,11 @@ struct smb_iconv_handle;
 
 size_t ucs2_align(const void *base_ptr, const void *p, int flags);
 
+/**
+return the number of bytes occupied by a buffer in CH_UTF16 format
+**/
+size_t utf16_len(const void *buf);
+
 /**
 return the number of bytes occupied by a buffer in CH_UTF16 format
 the result includes the null termination
diff --git a/lib/util/charset/util_unistr.c b/lib/util/charset/util_unistr.c
index c94068819ce..d81a9c3b70f 100644
--- a/lib/util/charset/util_unistr.c
+++ b/lib/util/charset/util_unistr.c
@@ -193,15 +193,23 @@ size_t ucs2_align(const void *base_ptr, const void *p, int flags)
 
 /**
 return the number of bytes occupied by a buffer in CH_UTF16 format
-the result includes the null termination
 **/
-size_t utf16_null_terminated_len(const void *buf)
+size_t utf16_len(const void *buf)
 {
 	size_t len;
 
 	for (len = 0; SVAL(buf,len); len += 2) ;
 
-	return len + 2;
+	return len;
+}
+
+/**
+return the number of bytes occupied by a buffer in CH_UTF16 format
+the result includes the null termination
+**/
+size_t utf16_null_terminated_len(const void *buf)
+{
+	return utf16_len(buf) + 2;
 }
 
 /**