Towards working mkdir.

tasks/libposix/mkdir.c

@@ -0,0 +1,55 @@
+/*
+ * l4/posix glue for mkdir()
+ *
+ * Copyright (C) 2008 Bahadir Balban
+ */
+#include <errno.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include <sys/shm.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <l4lib/arch/syscalls.h>
+#include <l4lib/arch/syslib.h>
+#include <l4lib/ipcdefs.h>
+#include <l4lib/utcb.h>
+#include <fcntl.h>
+#include <l4/macros.h>
+#include INC_GLUE(memory.h)
+
+static inline int l4_mkdir(const char *pathname, mode_t mode)
+{
+	int fd;
+
+	// write_mr(L4SYS_ARG0, (unsigned long)pathname);
+	copy_to_utcb((void *)pathname, 0, strlen(pathname));
+	write_mr(L4SYS_ARG0, (unsigned long)utcb_page);
+	write_mr(L4SYS_ARG1, (u32)mode);
+
+	/* Call pager with shmget() request. Check ipc error. */
+	if ((fd = l4_sendrecv(VFS_TID, VFS_TID, L4_IPC_TAG_MKDIR)) < 0) {
+		printf("%s: L4 IPC Error: %d.\n", __FUNCTION__, fd);
+		return fd;
+	}
+	/* Check if syscall itself was successful */
+	if ((fd = l4_get_retval()) < 0) {
+		printf("%s: MKDIR Error: %d.\n", __FUNCTION__, fd);
+		return fd;
+	}
+	return fd;
+}
+
+int mkdir(const char *pathname, mode_t mode)
+{
+	int ret;
+
+	/* If error, return positive error code */
+	if ((ret = l4_mkdir(pathname, mode)) < 0) {
+		errno = -ret;
+		return -1;
+	}
+	/* else return value */
+	return ret;
+}
+