some of Buffalo DHP series use slightly different trx magic, buffalo-enc, buffalo-tag, and factory image begin with 'bgn'. this patch adds support for building those images. Signed-off-by: FUKAUMI Naoki <naobsd@gmail.com>master
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/*
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* Copyright (c) 2016 FUKAUMI Naoki <naobsd@gmail.com> |
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* |
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* This program is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 as published |
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* by the Free Software Foundation. |
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* |
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*/ |
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#include <sys/stat.h> |
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#include <err.h> |
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#include <fcntl.h> |
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#include <stdint.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include "buffalo-lib.h" |
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#define DHP_HEADER_SIZE 20 |
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static char *progname; |
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static void |
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usage(void) |
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{ |
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fprintf(stderr, "usage: %s <in> <out>\n", progname); |
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exit(EXIT_FAILURE); |
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} |
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int |
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main(int argc, char *argv[]) |
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{ |
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struct stat in_st; |
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size_t size; |
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uint32_t crc; |
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int in, out; |
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uint8_t *buf; |
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progname = argv[0]; |
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if (argc != 3) |
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usage(); |
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if ((in = open(argv[1], O_RDONLY)) == -1) |
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err(EXIT_FAILURE, "%s", argv[1]); |
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if (fstat(in, &in_st) == -1) |
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err(EXIT_FAILURE, "%s", argv[1]); |
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size = DHP_HEADER_SIZE + in_st.st_size; |
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if ((buf = malloc(size)) == NULL) |
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err(EXIT_FAILURE, "malloc"); |
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memset(buf, 0, DHP_HEADER_SIZE); |
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buf[0x0] = 0x62; |
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buf[0x1] = 0x67; |
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buf[0x2] = 0x6e; |
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buf[0xb] = 0xb1; |
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buf[0xc] = (size >> 24) & 0xff; |
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buf[0xd] = (size >> 16) & 0xff; |
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buf[0xe] = (size >> 8) & 0xff; |
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buf[0xf] = size & 0xff; |
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read(in, &buf[DHP_HEADER_SIZE], in_st.st_size); |
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close(in); |
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crc = buffalo_crc(buf, size); |
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buf[0x10] = (crc >> 24) & 0xff; |
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buf[0x11] = (crc >> 16) & 0xff; |
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buf[0x12] = (crc >> 8) & 0xff; |
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buf[0x13] = crc & 0xff; |
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if ((out = open(argv[2], O_WRONLY | O_CREAT | O_TRUNC, 0644)) == -1) |
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err(EXIT_FAILURE, "%s", argv[2]); |
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write(out, buf, size); |
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close(out); |
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free(buf); |
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return EXIT_SUCCESS; |
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} |
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