cmd: rework "license" command

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>

1 files changed, 0 insertions, 41 deletions

diff --git a/tools/bin2header.c b/tools/bin2header.c
deleted file mode 100644
index 6c2c23f624..0000000000
--- a/tools/bin2header.c
+++ /dev/null
@@ -1,41 +0,0 @@
-/* bin2header.c - program to convert binary file into a C structure
- * definition to be included in a header file.
- *
- * (C) Copyright 2008 by Harald Welte <laforge@openmoko.org>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-
-int main(int argc, char **argv)
-{
-	if (argc < 2) {
-		fprintf(stderr, "%s needs one argument: the structure name\n",
-			argv[0]);
-		exit(1);
-	}
-
-	printf("/* bin2header output - automatically generated */\n");
-	printf("unsigned char %s[] = {\n", argv[1]);
-
-	while (1) {
-		int i, nread;
-		unsigned char buf[10];
-		nread = read(0, buf, sizeof(buf));
-		if (nread <= 0)
-			break;
-
-		printf("\t");
-		for (i = 0; i < nread - 1; i++)
-			printf("0x%02x, ", buf[i]);
-
-		printf("0x%02x,\n", buf[nread-1]);
-	}
-
-	printf("};\n");
-
-	exit(0);
-}