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https://github.com/brain-hackers/u-boot-brain
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d455d8789d
The sandbox/ext4/fat/generic fs commands do not gracefully deal with files greater than 2GB. Negative values are returned in such cases. To handle this, the fs functions have been modified to take an additional parameter of type "* loff_t" which is then populated. The return value of the fs functions are used only for error conditions. Signed-off-by: Suriyan Ramasami <suriyan.r@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> [trini: Update board/gdsys/p1022/controlcenterd-id.c, drivers/fpga/zynqpl.c for changes] Signed-off-by: Tom Rini <trini@ti.com>
138 lines
2.3 KiB
C
138 lines
2.3 KiB
C
/*
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* Copyright (c) 2012, Google Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <fs.h>
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#include <os.h>
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int sandbox_fs_set_blk_dev(block_dev_desc_t *rbdd, disk_partition_t *info)
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{
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return 0;
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}
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int sandbox_fs_read_at(const char *filename, loff_t pos, void *buffer,
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loff_t maxsize, loff_t *actread)
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{
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loff_t size;
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int fd, ret;
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fd = os_open(filename, OS_O_RDONLY);
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if (fd < 0)
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return fd;
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ret = os_lseek(fd, pos, OS_SEEK_SET);
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if (ret == -1) {
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os_close(fd);
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return ret;
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}
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if (!maxsize) {
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ret = os_get_filesize(filename, &size);
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if (ret) {
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os_close(fd);
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return ret;
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}
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maxsize = size;
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}
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size = os_read(fd, buffer, maxsize);
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os_close(fd);
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if (size < 0) {
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ret = -1;
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} else {
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ret = 0;
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*actread = size;
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}
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return ret;
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}
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int sandbox_fs_write_at(const char *filename, loff_t pos, void *buffer,
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loff_t towrite, loff_t *actwrite)
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{
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ssize_t size;
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int fd, ret;
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fd = os_open(filename, OS_O_RDWR | OS_O_CREAT);
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if (fd < 0)
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return fd;
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ret = os_lseek(fd, pos, OS_SEEK_SET);
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if (ret == -1) {
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os_close(fd);
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return ret;
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}
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size = os_write(fd, buffer, towrite);
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os_close(fd);
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if (size == -1) {
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ret = -1;
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} else {
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ret = 0;
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*actwrite = size;
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}
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return ret;
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}
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int sandbox_fs_ls(const char *dirname)
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{
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struct os_dirent_node *head, *node;
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int ret;
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ret = os_dirent_ls(dirname, &head);
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if (ret)
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return ret;
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for (node = head; node; node = node->next) {
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printf("%s %10lu %s\n", os_dirent_get_typename(node->type),
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node->size, node->name);
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}
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return 0;
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}
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int sandbox_fs_exists(const char *filename)
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{
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loff_t size;
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int ret;
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ret = os_get_filesize(filename, &size);
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return ret == 0;
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}
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int sandbox_fs_size(const char *filename, loff_t *size)
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{
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return os_get_filesize(filename, size);
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}
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void sandbox_fs_close(void)
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{
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}
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int fs_read_sandbox(const char *filename, void *buf, loff_t offset, loff_t len,
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loff_t *actread)
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{
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int ret;
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ret = sandbox_fs_read_at(filename, offset, buf, len, actread);
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if (ret)
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printf("** Unable to read file %s **\n", filename);
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return ret;
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}
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int fs_write_sandbox(const char *filename, void *buf, loff_t offset,
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loff_t len, loff_t *actwrite)
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{
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int ret;
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ret = sandbox_fs_write_at(filename, offset, buf, len, actwrite);
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if (ret)
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printf("** Unable to write file %s **\n", filename);
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return ret;
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}
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