d726f225f5
The previous commit ("add a new command to show .config contents")
improves the basic infrastructure of "embed a compressed file into
the U-Boot image, and print it by a command". The same pattern for
the "license" command.
This commit reworks the command to improve the following:
[1] Improve log style
Kbuild style log
GZIP cmd/license_data.gz
CHK cmd/license_data_gz.h
UPD cmd/license_data_gz.h
CHK cmd/license_data_size.h
UPD cmd/license_data_size.h
instead of the bare Make log:
cat ./Licenses/gpl-2.0.txt | gzip -9 -c | \
tools/bin2header license_gzip > ./include/license.h
[2] Collect related code into the "cmd" directory
Prior to this commit, the license.h was created by tools/Makefile,
placed under the "include" directory, included from cmd/license.c,
and deleted by the top-level Makefile. It is not a good idea to
scatter related code.
[3] Drop the fixed-malloc size LICENSE_MAX
Just allocate the minimum required size of buffer because we know
the size of the original gpl-2.0.txt.
[4] Fix more issues
Terminate the buffer with zero to prevent puts() from over-running.
Add "static" to do_license.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
46 lines
790 B
C
46 lines
790 B
C
/*
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* (C) Copyright 2007 by OpenMoko, Inc.
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* Author: Harald Welte <laforge@openmoko.org>
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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 <command.h>
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#include <malloc.h>
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#include "license_data_gz.h"
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#include "license_data_size.h"
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static int do_license(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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char *dst;
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unsigned long len = data_size;
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int ret = CMD_RET_SUCCESS;
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dst = malloc(data_size + 1);
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if (!dst)
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return CMD_RET_FAILURE;
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ret = gunzip(dst, data_size, (unsigned char *)data_gz, &len);
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if (ret) {
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printf("Error uncompressing license text\n");
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ret = CMD_RET_FAILURE;
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goto free;
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}
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dst[data_size] = 0;
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puts(dst);
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free:
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free(dst);
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return ret;
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}
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U_BOOT_CMD(
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license, 1, 1, do_license,
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"print GPL license text",
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""
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);
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