u-boot/cmd/unzip.c
Simon Glass 7e5f460ec4 global: Convert simple_strtoul() with hex to hextoul()
It is a pain to have to specify the value 16 in each call. Add a new
hextoul() function and update the code to use it.

Add a proper comment to simple_strtoul() while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-08-02 13:32:14 -04:00

91 lines
2.1 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*/
#include <common.h>
#include <command.h>
#include <env.h>
#include <gzip.h>
#include <part.h>
static int do_unzip(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
unsigned long src, dst;
unsigned long src_len = ~0UL, dst_len = ~0UL;
switch (argc) {
case 4:
dst_len = hextoul(argv[3], NULL);
/* fall through */
case 3:
src = hextoul(argv[1], NULL);
dst = hextoul(argv[2], NULL);
break;
default:
return CMD_RET_USAGE;
}
if (gunzip((void *) dst, dst_len, (void *) src, &src_len) != 0)
return 1;
printf("Uncompressed size: %lu = 0x%lX\n", src_len, src_len);
env_set_hex("filesize", src_len);
return 0;
}
U_BOOT_CMD(
unzip, 4, 1, do_unzip,
"unzip a memory region",
"srcaddr dstaddr [dstsize]"
);
static int do_gzwrite(struct cmd_tbl *cmdtp, int flag,
int argc, char *const argv[])
{
struct blk_desc *bdev;
int ret;
unsigned char *addr;
unsigned long length;
unsigned long writebuf = 1<<20;
u64 startoffs = 0;
u64 szexpected = 0;
if (argc < 5)
return CMD_RET_USAGE;
ret = blk_get_device_by_str(argv[1], argv[2], &bdev);
if (ret < 0)
return CMD_RET_FAILURE;
addr = (unsigned char *)hextoul(argv[3], NULL);
length = hextoul(argv[4], NULL);
if (5 < argc) {
writebuf = hextoul(argv[5], NULL);
if (6 < argc) {
startoffs = simple_strtoull(argv[6], NULL, 16);
if (7 < argc)
szexpected = simple_strtoull(argv[7],
NULL, 16);
}
}
ret = gzwrite(addr, length, bdev, writebuf, startoffs, szexpected);
return ret ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
}
U_BOOT_CMD(
gzwrite, 8, 0, do_gzwrite,
"unzip and write memory to block device",
"<interface> <dev> <addr> length [wbuf=1M [offs=0 [outsize=0]]]\n"
"\twbuf is the size in bytes (hex) of write buffer\n"
"\t\tand should be padded to erase size for SSDs\n"
"\toffs is the output start offset in bytes (hex)\n"
"\toutsize is the size of the expected output (hex bytes)\n"
"\t\tand is required for files with uncompressed lengths\n"
"\t\t4 GiB or larger\n"
);