Kernel+Userland: Add the rename() syscall along with a basic /bin/mv.

1 files changed, 32 insertions, 0 deletions

diff --git a/Userland/mv.cpp b/Userland/mv.cpp
new file mode 100644
index 0000000000..486761c00e
--- /dev/null
+++ b/Userland/mv.cpp
@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <AK/AKString.h>
+#include <AK/FileSystemPath.h>
+
+int main(int argc, char** argv)
+{
+    if (argc != 3) {
+        printf("usage: mv <old-path> <new-path>\n");
+        return 1;
+    }
+
+    String old_path = argv[1];
+    String new_path = argv[2];
+
+    struct stat st;
+    int rc = lstat(new_path.characters(), &st);
+    if (rc == 0) {
+        if (S_ISDIR(st.st_mode)) {
+            auto old_basename = FileSystemPath(old_path).basename();
+            new_path = String::format("%s/%s", new_path.characters(), old_basename.characters());
+        }
+    }
+
+    rc = rename(old_path.characters(), new_path.characters());
+    if (rc < 0) {
+        perror("rename");
+        return 1;
+    }
+    return 0;
+}