From afd916c38fda0d70b83015ed867c30bc1578fc14 Mon Sep 17 00:00:00 2001
From: Joursoir <chat@joursoir.net>
Date: Sun, 12 Dec 2021 11:05:07 +0300
Subject: add creation of one or more directories

---
 Library/UefiShellUfmCommandLib/cmds.c | 65 +++++++++++++++++++++++++++++++++++
 Library/UefiShellUfmCommandLib/cmds.h | 20 +++++++++++
 2 files changed, 85 insertions(+)
 create mode 100644 Library/UefiShellUfmCommandLib/cmds.c
 create mode 100644 Library/UefiShellUfmCommandLib/cmds.h

diff --git a/Library/UefiShellUfmCommandLib/cmds.c b/Library/UefiShellUfmCommandLib/cmds.c
new file mode 100644
index 0000000..93c5666
--- /dev/null
+++ b/Library/UefiShellUfmCommandLib/cmds.c
@@ -0,0 +1,65 @@
+#include <Library/UefiLib.h>
+#include <Library/DebugLib.h>
+#include <Library/MemoryAllocationLib.h>
+
+#include "cmds.h"
+
+EFI_STATUS make_directory(CONST CHAR16 *dir_name)
+{
+	EFI_STATUS status = EFI_SUCCESS;
+	CHAR16 *tmp_str = NULL;
+	CHAR16 split_char, *split_name = NULL;
+	SHELL_FILE_HANDLE file_handle = NULL;
+
+	// check if dir already exists
+	status = ShellOpenFileByName(dir_name,
+		&file_handle,
+		EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE,
+		EFI_FILE_DIRECTORY
+	);
+	if(!EFI_ERROR(status)) {
+		ShellCloseFile(&file_handle);
+		return EFI_INVALID_PARAMETER;
+	}
+
+	// create the nested directory from parent to child:
+	// if dir_name = test1\test2\test3, first create "test1\" directory, then "test1\test2\", finally "test1\test2\test3".
+	tmp_str = AllocateCopyPool(StrSize(dir_name), dir_name);
+	tmp_str = PathCleanUpDirectories(tmp_str);
+	if(tmp_str == NULL)
+		return EFI_OUT_OF_RESOURCES;
+
+	split_name = tmp_str;
+	while(split_name != NULL) {
+		split_name = StrStr(split_name + 1, L"\\");
+		if(split_name != NULL) {
+			split_char = *(split_name + 1);
+			*(split_name + 1) = '\0';
+		}
+
+		// check if current nested directory already exists
+		status = ShellOpenFileByName(tmp_str,
+			&file_handle,
+			EFI_FILE_MODE_READ,
+			EFI_FILE_DIRECTORY
+		);
+		if(!EFI_ERROR(status)) {
+			ShellCloseFile(&file_handle);
+		}
+		else {
+			status = ShellCreateDirectory(tmp_str, &file_handle);
+			if(EFI_ERROR(status))
+				break;
+			if(file_handle != NULL)
+				gEfiShellProtocol->CloseFile(file_handle);
+		}
+
+		if(split_name != NULL)
+			*(split_name + 1) = split_char;
+	}
+	if(EFI_ERROR(status))
+		status = EFI_ACCESS_DENIED;
+	
+	SHELL_FREE_NON_NULL(tmp_str);
+	return status;
+}
diff --git a/Library/UefiShellUfmCommandLib/cmds.h b/Library/UefiShellUfmCommandLib/cmds.h
new file mode 100644
index 0000000..d819d47
--- /dev/null
+++ b/Library/UefiShellUfmCommandLib/cmds.h
@@ -0,0 +1,20 @@
+#ifndef UFM_CMDS_H
+#define UFM_CMDS_H
+
+#include <Uefi.h>
+#include <Library/ShellLib.h>
+
+/*
+ * Creates one or more directories.
+ *
+ * dir_name: the name of a directory or directories to create
+ *
+ * return: EFI_SUCCESS           Directory(-ies) was created
+           EFI_INVALID_PARAMETER Parameter has an invalid value
+           EFI_ACCESS_DENIED     Error while creating directory(-ies)
+           EFI_OUT_OF_RESOURCES  Not enough resources were available to open the
+                                 file
+*/
+EFI_STATUS make_directory(CONST CHAR16 *dir_name);
+
+#endif /* UFM_CMDS_H */
-- 
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