1 files changed, 15 insertions, 0 deletions
diff --git a/userland/libc/string/strdup.c b/userland/libc/string/strdup.c
new file mode 100644
index 0000000..9e22f94
--- /dev/null
+++ b/userland/libc/string/strdup.c
@@ -0,0 +1,15 @@
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+// The strdup() function shall return a pointer to a new string, which is a
+// duplicate of the string pointed to by s. The returned pointer can be passed
+// to free(). A null pointer is returned if the new string cannot be created.
+char *strdup(const char *s) {
+  size_t l = strlen(s);
+  char *r = malloc(l + 1);
+  if (!r)
+    return NULL;
+  strcpy(r, s);
+  return r;
+}