feat: copy, move commands

programs/src/copy/main.cpp

@@ -0,0 +1,98 @@
+/*
+    * main.cpp
+    * copy - command to copy files
+    * Copyright (c) 2026 Daniel Hammer
+*/
+
+#include <montauk/syscall.h>
+#include <montauk/string.h>
+
+extern "C" void _start() {
+    char args[256];
+    montauk::getargs((char *)&args, 256);
+
+    const char* p = montauk::skip_spaces((const char *)&args);
+    if (*p == '\0') {
+        montauk::print("usage: cp [source] [dest]\n");
+        montauk::exit(-1);
+    }
+
+    // Parse source path
+    const char* src = p;
+    while (*p && *p != ' ') p++;
+    if (*p == '\0') {
+        montauk::print("copy: missing destination\n");
+        montauk::exit(-1);
+    }
+    char srcPath[256];
+    size_t len = p - src;
+    if (len >= sizeof(srcPath)) len = sizeof(srcPath) - 1;
+    for (size_t i = 0; i < len; i++) srcPath[i] = src[i];
+    srcPath[len] = '\0';
+
+    // Parse dest path
+    p = montauk::skip_spaces(p);
+    if (*p == '\0') {
+        montauk::print("copy: missing destination\n");
+        montauk::exit(-1);
+    }
+    const char* dst = p;
+
+    // Open source file
+    int srcFd = montauk::open(srcPath);
+    if (srcFd < 0) {
+        montauk::print("copy: cannot open source file\n");
+        montauk::exit(-1);
+    }
+
+    // Get source size
+    uint64_t size = montauk::getsize(srcFd);
+    if (size == 0) {
+        montauk::close(srcFd);
+        // Create empty destination
+        int dstFd = montauk::fcreate(dst);
+        if (dstFd < 0) {
+            montauk::print("copy: cannot create destination file\n");
+            montauk::exit(-1);
+        }
+        montauk::close(dstFd);
+        montauk::exit(0);
+    }
+
+    // Allocate buffer for file contents
+    uint8_t* buf = (uint8_t*)montauk::alloc(size);
+    if (!buf) {
+        montauk::close(srcFd);
+        montauk::print("copy: out of memory\n");
+        montauk::exit(-1);
+    }
+
+    // Read source file
+    int bytesRead = montauk::read(srcFd, buf, 0, size);
+    montauk::close(srcFd);
+    if (bytesRead < 0 || (uint64_t)bytesRead != size) {
+        montauk::free(buf);
+        montauk::print("copy: failed to read source file\n");
+        montauk::exit(-1);
+    }
+
+    // Create destination file
+    int dstFd = montauk::fcreate(dst);
+    if (dstFd < 0) {
+        montauk::free(buf);
+        montauk::print("copy: cannot create destination file\n");
+        montauk::exit(-1);
+    }
+
+    // Write to destination
+    int written = montauk::fwrite(dstFd, buf, 0, size);
+    montauk::close(dstFd);
+    montauk::free(buf);
+
+    if (written < 0 || (uint64_t)written != size) {
+        montauk::print("copy: failed to write destination file\n");
+        montauk::exit(-1);
+    }
+
+    montauk::exit(0);
+}

programs/src/move/main.cpp

@@ -0,0 +1,47 @@
+/*
+    * main.cpp
+    * move - command to move/rename files
+    * Copyright (c) 2026 Daniel Hammer
+*/
+
+#include <montauk/syscall.h>
+#include <montauk/string.h>
+
+extern "C" void _start() {
+    char args[256];
+    montauk::getargs((char *)&args, 256);
+
+    const char* p = montauk::skip_spaces((const char *)&args);
+    if (*p == '\0') {
+        montauk::print("usage: move [source] [dest]\n");
+        montauk::exit(-1);
+    }
+
+    // Parse source path
+    const char* src = p;
+    while (*p && *p != ' ') p++;
+    if (*p == '\0') {
+        montauk::print("move: missing destination\n");
+        montauk::exit(-1);
+    }
+    char srcPath[256];
+    size_t len = p - src;
+    if (len >= sizeof(srcPath)) len = sizeof(srcPath) - 1;
+    for (size_t i = 0; i < len; i++) srcPath[i] = src[i];
+    srcPath[len] = '\0';
+
+    // Parse dest path
+    p = montauk::skip_spaces(p);
+    if (*p == '\0') {
+        montauk::print("move: missing destination\n");
+        montauk::exit(-1);
+    }
+    const char* dst = p;
+
+    if (montauk::frename(srcPath, dst) < 0) {
+        montauk::print("move: failed to move file\n");
+        montauk::exit(-1);
+    }
+
+    montauk::exit(0);
+}