89 lines
1.4 KiB
C
89 lines
1.4 KiB
C
/*
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* creates LOAD/Flash images for Siemens SE505
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*
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* (c) 01/2005 Olaf Rempel <razzor at kopf minus tisch dot de>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/types.h>
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#include "trxhdr.h"
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#include "crc.h"
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int main(int argc, char *argv[]) {
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struct trx_header *trx;
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int i, cnt, fcnt = 0;
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FILE *fp;
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char *buf;
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if (argc <= 1) {
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printf("USAGE: trx file1 [file2] [file3] > outfile.trx\n");
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exit(-1);
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}
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// this is.. ugly, but works :)
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if ((buf = malloc(TRX_MAX_LEN)) == NULL) {
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perror("malloc");
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exit(-1);
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}
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// init main header
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trx = (void *)buf;
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memset(trx, 0, sizeof(struct trx_header));
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trx->magic = TRX_MAGIC;
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trx->flag_version = TRX_VERSION << 16;
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// copy header
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cnt = sizeof(struct trx_header);
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for (i = 1; i < argc; i++) {
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if (fcnt == 2) {
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fprintf(stdout, "max. 3 Files\n");
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free(buf);
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exit(-1);
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}
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// align offsets
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while (cnt % 4)
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buf[cnt++] = 0;
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trx->offsets[fcnt++] = cnt;
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// open file
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if ((fp = fopen(argv[i], "r")) < 0) {
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perror(argv[i]);
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free(buf);
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exit(-1);
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}
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// copy file to buffer
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while (!feof(fp))
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cnt += fread(buf + cnt, 1, 65536, fp);
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// close file
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fclose(fp);
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}
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// align size (to page?)
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while (cnt % 0x1000)
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buf[cnt++] = 0;
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trx->len = cnt;
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// calc crc32
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trx->crc32 = crc32(buf +12, cnt -12, CRC32_INIT_VALUE);
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// flush to output
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write(1, buf, cnt);
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free(buf);
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return 0;
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}
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