Changeset 6128390 in mainline for uspace/lib/posix/strings.c

Timestamp:

2011-06-18T23:00:14Z (14 years ago)

Author:

Jiří Zárevúcky <zarevucky.jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

63fc519

Parents:

9b1503e

Message:

Implement strcasecmp() and strncasecmp()

File:

• uspace/lib/posix/strings.c (modified) (3 diffs)

uspace/lib/posix/strings.c

@@ -39 +39 @@
 #include "strings.h"
 #include "string.h"
+#include "ctype.h"
 
 /**
@@ -59 +60 @@
 int posix_strcasecmp(const char *s1, const char *s2)
 {
-        // TODO
-        not_implemented();
+        return posix_strncasecmp(s1, s2, STR_NO_LIMIT);
 }
 
@@ -72 +72 @@
 int posix_strncasecmp(const char *s1, const char *s2, size_t n)
 {
-        // TODO
-        not_implemented();
+        for (size_t i = 0; i < n; ++i) {
+                int cmp = tolower(s1[i]) - tolower(s2[i]);
+                if (cmp != 0) {
+                        return cmp;
+                }
+                
+                if (s1[i] == 0) {
+                        return 0;
+                }
+        }
+        
+        return 0;
 }