Kernel/LibC/Userspace: Implement mkdir and creat

Touch now uses creat insteadd of open with O_CREAT flag

userspace/CMakeLists.txt

@@ -13,6 +13,7 @@ set(USERSPACE_PROJECTS
 	init
 	ls
 	meminfo
+	mkdir
 	mmap-shared-test
 	poweroff
 	Shell

userspace/mkdir/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.26)
+
+project(mkdir CXX)
+
+set(SOURCES
+	main.cpp
+)
+
+add_executable(mkdir ${SOURCES})
+target_compile_options(mkdir PUBLIC -O2 -g)
+target_link_libraries(mkdir PUBLIC libc)
+
+add_custom_target(mkdir-install
+	COMMAND sudo cp ${CMAKE_CURRENT_BINARY_DIR}/mkdir ${BANAN_BIN}/
+	DEPENDS mkdir
+	USES_TERMINAL
+)

userspace/mkdir/main.cpp

@@ -0,0 +1,23 @@
+#include <stdio.h>
+#include <sys/stat.h>
+
+int main(int argc, char** argv)
+{
+	if (argc <= 1)
+	{
+		fprintf(stderr, "Missing operand\n");
+		return 1;
+	}
+
+	int ret = 0;
+	for (int i = 1; i < argc; i++)
+	{
+		if (mkdir(argv[i], 0755) == -1)
+		{
+			perror("mkdir");
+			ret = 1;
+		}
+	}
+
+	return ret;
+}

userspace/touch/main.cpp

@@ -4,18 +4,14 @@
 
 int main(int argc, char** argv)
 {
+	int ret = 0;
 	for (int i = 1; i < argc; i++)
 	{
-		int fd = open(argv[i], O_WRONLY | O_CREAT, 0644);
-		if (fd == -1)
+		if (creat(argv[i], 0644) == -1 && errno != EEXIST)
 		{
-			if (errno != EEXISTS)
-				perror(argv[i]);
-		}
-		else
-		{
-			close(fd);
+			perror(argv[i]);
+			ret = 1;
 		}
 	}
-	return 0;
+	return ret;
 }