1 files changed, 10 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/ipc/ftok.c b/libc-top-half/musl/src/ipc/ftok.c
new file mode 100644
index 0000000..c36b4b6
--- /dev/null
+++ b/libc-top-half/musl/src/ipc/ftok.c
@@ -0,0 +1,10 @@
+#include <sys/ipc.h>
+#include <sys/stat.h>
+
+key_t ftok(const char *path, int id)
+{
+	struct stat st;
+	if (stat(path, &st) < 0) return -1;
+
+	return ((st.st_ino & 0xffff) | ((st.st_dev & 0xff) << 16) | ((id & 0xffu) << 24));
+}