X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=fs%2Fsandbox%2Fsandboxfs.c;h=5acfc03704a9b35d9f823637ffac86e06f051208;hb=6e2f1538959d79b54a0ceeed2f24643cf98ebaa4;hp=89769e8ce680cf5bac206c2dff83e131a6120577;hpb=cac423a730d3506154744485af1bbc1cd3a1e6a8;p=u-boot

diff --git a/fs/sandbox/sandboxfs.c b/fs/sandbox/sandboxfs.c
index 89769e8ce6..5acfc03704 100644
--- a/fs/sandbox/sandboxfs.c
+++ b/fs/sandbox/sandboxfs.c
@@ -1,20 +1,7 @@
 /*
  * Copyright (c) 2012, Google Inc.
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
@@ -23,13 +10,17 @@
 
 int sandbox_fs_set_blk_dev(block_dev_desc_t *rbdd, disk_partition_t *info)
 {
-	return 0;
+	/*
+	 * Only accept a NULL block_dev_desc_t for the sandbox, which is when
+	 * hostfs interface is used
+	 */
+	return rbdd != NULL;
 }
 
-long sandbox_fs_read_at(const char *filename, unsigned long pos,
-			     void *buffer, unsigned long maxsize)
+int sandbox_fs_read_at(const char *filename, loff_t pos, void *buffer,
+		       loff_t maxsize, loff_t *actread)
 {
-	ssize_t size;
+	loff_t size;
 	int fd, ret;
 
 	fd = os_open(filename, OS_O_RDONLY);
@@ -40,16 +31,31 @@ long sandbox_fs_read_at(const char *filename, unsigned long pos,
 		os_close(fd);
 		return ret;
 	}
-	if (!maxsize)
-		maxsize = os_get_filesize(filename);
+	if (!maxsize) {
+		ret = os_get_filesize(filename, &size);
+		if (ret) {
+			os_close(fd);
+			return ret;
+		}
+
+		maxsize = size;
+	}
+
 	size = os_read(fd, buffer, maxsize);
 	os_close(fd);
 
-	return size;
+	if (size < 0) {
+		ret = -1;
+	} else {
+		ret = 0;
+		*actread = size;
+	}
+
+	return ret;
 }
 
-long sandbox_fs_write_at(const char *filename, unsigned long pos,
-			 void *buffer, unsigned long towrite)
+int sandbox_fs_write_at(const char *filename, loff_t pos, void *buffer,
+			loff_t towrite, loff_t *actwrite)
 {
 	ssize_t size;
 	int fd, ret;
@@ -65,7 +71,14 @@ long sandbox_fs_write_at(const char *filename, unsigned long pos,
 	size = os_write(fd, buffer, towrite);
 	os_close(fd);
 
-	return size;
+	if (size == -1) {
+		ret = -1;
+	} else {
+		ret = 0;
+		*actwrite = size;
+	}
+
+	return ret;
 }
 
 int sandbox_fs_ls(const char *dirname)
@@ -85,32 +98,44 @@ int sandbox_fs_ls(const char *dirname)
 	return 0;
 }
 
+int sandbox_fs_exists(const char *filename)
+{
+	loff_t size;
+	int ret;
+
+	ret = os_get_filesize(filename, &size);
+	return ret == 0;
+}
+
+int sandbox_fs_size(const char *filename, loff_t *size)
+{
+	return os_get_filesize(filename, size);
+}
+
 void sandbox_fs_close(void)
 {
 }
 
-int fs_read_sandbox(const char *filename, void *buf, int offset, int len)
+int fs_read_sandbox(const char *filename, void *buf, loff_t offset, loff_t len,
+		    loff_t *actread)
 {
-	int len_read;
+	int ret;
 
-	len_read = sandbox_fs_read_at(filename, offset, buf, len);
-	if (len_read == -1) {
+	ret = sandbox_fs_read_at(filename, offset, buf, len, actread);
+	if (ret)
 		printf("** Unable to read file %s **\n", filename);
-		return -1;
-	}
 
-	return len_read;
+	return ret;
 }
 
-int fs_write_sandbox(const char *filename, void *buf, int offset, int len)
+int fs_write_sandbox(const char *filename, void *buf, loff_t offset,
+		     loff_t len, loff_t *actwrite)
 {
-	int len_written;
+	int ret;
 
-	len_written = sandbox_fs_write_at(filename, offset, buf, len);
-	if (len_written == -1) {
+	ret = sandbox_fs_write_at(filename, offset, buf, len, actwrite);
+	if (ret)
 		printf("** Unable to write file %s **\n", filename);
-		return -1;
-	}
 
-	return len_written;
+	return ret;
 }