Add build system scaffolding and libc headers

1 files changed, 32 insertions, 0 deletions

diff --git a/lib/libc/wctype/wctype.c b/lib/libc/wctype/wctype.c
new file mode 100644
index 00000000..0495ba8c
--- /dev/null
+++ b/lib/libc/wctype/wctype.c
@@ -0,0 +1,32 @@
+#include <libc.h>
+#include <wctype.h>
+#include <string.h>
+
+wctype_t wctype(const char *property)
+{
+	int i;
+	const char *ptr;
+	static const char n[] = "alnum\0"
+				"alpha\0"
+				"blank\0"
+				"cntrl\0"
+				"digit\0"
+				"graph\0"
+				"lower\0"
+				"print\0"
+				"punct\0"
+				"space\0"
+				"upper\0"
+				"xdigit";
+
+	for (i = 1, ptr = n; *ptr; i++, ptr += strlen(ptr) + 1)
+		if (!strcmp(property, ptr))
+			return i;
+
+	return 0;
+}
+
+weak wctype_t wctype_l(const char *property, locale_t unused locale)
+{
+	return wctype(property);
+}