1 files changed, 37 insertions, 0 deletions
diff --git a/src/strfuncs.c b/src/strfuncs.c
new file mode 100644
index 0000000..08b43b2
--- /dev/null
+++ b/src/strfuncs.c
@@ -0,0 +1,37 @@
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "strfuncs.h"
+
+char *strdup(const char *s)
+{
+	size_t len = strlen(s);
+	char *new = malloc(len + 1);
+	if (!new)
+		return 0;
+	memcpy(new, s, len);
+	new[len] = '\0';
+	return new;
+}
+
+char *strndup(const char *s, size_t n)
+{
+	size_t len = strlen(s);
+	if (n < len)
+		len = n;
+	char *new = malloc(len + 1);
+	if (!new)
+		return 0;
+	memcpy(new, s, len);
+	new[len] = '\0';
+	return new;
+}
+
+int strcasecmp(const char *s1, const char *s2)
+{
+	int i;
+	while ((i = tolower(*s1)) && i == tolower(*s2))
+		s1++, s2++;
+	return ((unsigned char) tolower(*s1) - (unsigned char) tolower(*s2));
+}