diff mbox series

[Concept,04/34] sandbox: Add various helpers for mkdir, rmdir, etc.

Message ID 20260403140523.1998228-5-sjg@u-boot.org
State New
Headers
Series Add a virtual filesystem (VFS) layer to U-Boot |

Commit Message

Simon Glass April 3, 2026, 2:04 p.m. UTC 
  From: Simon Glass <sjg@chromium.org>

Add os_mkdir(), os_rmdir(), os_rename(), os_symlink() and os_readlink()
wrappers around POSIX calls for sandbox use.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

 arch/sandbox/cpu/os.c | 44 ++++++++++++++++++++++++++++++++++++++++++
 include/os.h          | 45 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 89 insertions(+)
diff mbox series

Patch

diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index 8f751d69cf0..7088d8eb5e3 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -152,6 +152,50 @@  int os_unlink(const char *pathname)
 	return unlink(pathname);
 }
 
+int os_mkdir(const char *pathname, int mode)
+{
+	if (mkdir(pathname, mode))
+		return -errno;
+
+	return 0;
+}
+
+int os_rmdir(const char *pathname)
+{
+	if (rmdir(pathname))
+		return -errno;
+
+	return 0;
+}
+
+int os_rename(const char *old_path, const char *new_path)
+{
+	if (rename(old_path, new_path))
+		return -errno;
+
+	return 0;
+}
+
+int os_symlink(const char *target, const char *linkpath)
+{
+	if (symlink(target, linkpath))
+		return -errno;
+
+	return 0;
+}
+
+int os_readlink(const char *pathname, char *buf, int size)
+{
+	ssize_t len;
+
+	len = readlink(pathname, buf, size - 1);
+	if (len < 0)
+		return -errno;
+	buf[len] = '\0';
+
+	return len;
+}
+
 char *os_fgets(char *str, int size, int fd)
 {
 	char *s = str;
diff --git a/include/os.h b/include/os.h
index 41e3022657c..495ab3a9d0a 100644
--- a/include/os.h
+++ b/include/os.h
@@ -108,6 +108,51 @@  int os_isatty(int fd);
  */
 int os_unlink(const char *pathname);
 
+/**
+ * os_mkdir() - Create a directory
+ *
+ * @pathname:	Path of directory to create
+ * @mode:	Permissions (e.g. 0755)
+ * Return:	0 for success, -errno on error
+ */
+int os_mkdir(const char *pathname, int mode);
+
+/**
+ * os_rmdir() - Remove an empty directory
+ *
+ * @pathname:	Path of directory to remove
+ * Return:	0 for success, -errno on error
+ */
+int os_rmdir(const char *pathname);
+
+/**
+ * os_readlink() - Read the target of a symbolic link
+ *
+ * @pathname:	Path of the symbolic link
+ * @buf:	Buffer to receive the target path
+ * @size:	Size of buffer
+ * Return:	length of target on success, -errno on error
+ */
+int os_readlink(const char *pathname, char *buf, int size);
+
+/**
+ * os_symlink() - Create a symbolic link
+ *
+ * @target:	Target path
+ * @linkpath:	Path of the symbolic link to create
+ * Return:	0 for success, -errno on error
+ */
+int os_symlink(const char *target, const char *linkpath);
+
+/**
+ * os_rename() - Rename or move a file or directory
+ *
+ * @old_path:	Current path
+ * @new_path:	New path
+ * Return:	0 for success, -errno on error
+ */
+int os_rename(const char *old_path, const char *new_path);
+
 /**
  * os_fgets() - read a string from a file stream
  *