Add simplified toupper, tolower, str[n]casecmp to core

(Missing from previous checkin)

Add simplified toupper(), tolower() and str[n]casecmp()
implementations to the core, good enough for ASCII e.g. for use in URL
parsing, or in config file decoding.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/core/strcasecmp.c b/core/strcasecmp.c
new file mode 100644
index 00000000..2f7480d4
--- /dev/null
+++ b/core/strcasecmp.c
@@ -0,0 +1,11 @@
+/*
+ * strcasecmp.c
+ */
+
+#include <string.h>
+#include <ctype.h>
+
+int strcasecmp(const char *s1, const char *s2)
+{
+    return strncasecmp(s1, s2, -1);
+}