From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 13 Jan 2016 01:21:16 +0000 (+0100)
Subject: basic: add new ascii_strcasecmp_n() call
X-Git-Tag: v229.1~1^2~57
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=7c1b422919819e9e7af4652b52d5f122a090ce53;hp=039c931bcd7a6aaf7fb7a8b48b41e2bfb0e6f485;ds=sidebyside

basic: add new ascii_strcasecmp_n() call
---

diff --git a/src/basic/string-util.c b/src/basic/string-util.c
index e2bdb8976..dfcb29235 100644
--- a/src/basic/string-util.c
+++ b/src/basic/string-util.c
@@ -341,6 +341,21 @@ char *ascii_strlower_n(char *t, size_t n) {
         return t;
 }
 
+int ascii_strcasecmp_n(const char *a, const char *b, size_t n) {
+
+        for (; n > 0; a++, b++, n--) {
+                int x, y;
+
+                x = (int) (uint8_t) ascii_tolower(*a);
+                y = (int) (uint8_t) ascii_tolower(*b);
+
+                if (x != y)
+                        return x - y;
+        }
+
+        return 0;
+}
+
 bool chars_intersect(const char *a, const char *b) {
         const char *p;
 
diff --git a/src/basic/string-util.h b/src/basic/string-util.h
index 8b87c1e23..48cdc736f 100644
--- a/src/basic/string-util.h
+++ b/src/basic/string-util.h
@@ -132,6 +132,8 @@ char ascii_tolower(char x);
 char *ascii_strlower(char *s);
 char *ascii_strlower_n(char *s, size_t n);
 
+int ascii_strcasecmp_n(const char *a, const char *b, size_t n);
+
 bool chars_intersect(const char *a, const char *b) _pure_;
 
 static inline bool _pure_ in_charset(const char *s, const char* charset) {