apps: Add mkdir, chown and chmod

apps/CMakeLists.txt

@@ -3,26 +3,18 @@ function(luna_app SOURCE_FILE APP_NAME)
     target_compile_options(${APP_NAME} PRIVATE -Os ${COMMON_FLAGS} -Wno-write-strings)
     add_dependencies(${APP_NAME} libc)
     target_include_directories(${APP_NAME} PRIVATE ${LUNA_BASE}/usr/include)
+    target_link_libraries(${APP_NAME} PRIVATE os)
     install(TARGETS ${APP_NAME} DESTINATION ${LUNA_ROOT}/initrd/bin)
 endfunction()
 
 luna_app(init.cpp init)
 luna_app(env.cpp env)
-
 luna_app(su.cpp su)
-target_link_libraries(su PRIVATE os)
-
 luna_app(sh.cpp sh)
-target_link_libraries(sh PRIVATE os)
-
 luna_app(cat.cpp cat)
-target_link_libraries(cat PRIVATE os)
-
 luna_app(date.cpp date)
-target_link_libraries(date PRIVATE os)
-
 luna_app(edit.cpp edit)
-target_link_libraries(edit PRIVATE os)
-
 luna_app(ls.cpp ls)
-target_link_libraries(ls PRIVATE os)
+luna_app(chown.cpp chown)
+luna_app(chmod.cpp chmod)
+luna_app(mkdir.cpp mkdir)

apps/chmod.cpp

@@ -0,0 +1,23 @@
+#include <os/ArgumentParser.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+int main(int argc, char** argv)
+{
+    StringView mode_string;
+    StringView path;
+
+    os::ArgumentParser parser;
+    parser.add_positional_argument(mode_string, "mode"_sv, true);
+    parser.add_positional_argument(path, "path"_sv, true);
+    parser.parse(argc, argv);
+
+    mode_t mode = (mode_t)strtoul(mode_string.chars(), NULL, 8);
+
+    if (chmod(path.chars(), mode) < 0)
+    {
+        perror("chmod");
+        return 1;
+    }
+}

apps/chown.cpp

@@ -0,0 +1,23 @@
+#include <os/ArgumentParser.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+int main(int argc, char** argv)
+{
+    StringView user;
+    StringView path;
+
+    os::ArgumentParser parser;
+    parser.add_positional_argument(user, "user"_sv, true);
+    parser.add_positional_argument(path, "path"_sv, true);
+    parser.parse(argc, argv);
+
+    u32 id = (u32)strtoul(user.chars(), NULL, 0);
+
+    if (chown(path.chars(), id, id) < 0)
+    {
+        perror("chown");
+        return 1;
+    }
+}

apps/mkdir.cpp

@@ -0,0 +1,23 @@
+#include <os/ArgumentParser.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+
+int main(int argc, char** argv)
+{
+    StringView path;
+    StringView mode_string;
+
+    os::ArgumentParser parser;
+    parser.add_positional_argument(path, "path"_sv, true);
+    parser.add_positional_argument(mode_string, "mode"_sv, "755"_sv);
+    parser.parse(argc, argv);
+
+    mode_t mode = (mode_t)strtoul(mode_string.chars(), NULL, 8);
+
+    if (mkdir(path.chars(), mode) < 0)
+    {
+        perror("mkdir");
+        return 1;
+    }
+}