SVN-Revision: 18571master
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/*
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* Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org> |
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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 <stdio.h> |
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#include <stdlib.h> |
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#include <stdint.h> |
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#include <string.h> |
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#include <unistd.h> /* for unlink() */ |
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#include <libgen.h> |
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#include <getopt.h> /* for getopt() */ |
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#include <stdarg.h> |
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#include <errno.h> |
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#include <sys/stat.h> |
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#define DNI_HDR_LEN 128 |
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/*
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* Globals |
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*/ |
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static char *ifname; |
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static char *progname; |
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static char *ofname; |
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static char *version = "1.00.00"; |
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static char *region ="NA"; |
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static char *board_id; |
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/*
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* Message macros |
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*/ |
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#define ERR(fmt, ...) do { \ |
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fflush(0); \
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fprintf(stderr, "[%s] *** error: " fmt "\n", \
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progname, ## __VA_ARGS__ ); \
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} while (0) |
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#define ERRS(fmt, ...) do { \ |
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int save = errno; \
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fflush(0); \
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fprintf(stderr, "[%s] *** error: " fmt "\n", \
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progname, ## __VA_ARGS__, strerror(save)); \
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} while (0) |
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void usage(int status) |
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{ |
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FILE *stream = (status != EXIT_SUCCESS) ? stderr : stdout; |
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struct board_info *board; |
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fprintf(stream, "Usage: %s [OPTIONS...]\n", progname); |
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fprintf(stream, |
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"\n" |
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"Options:\n" |
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" -B <board> create image for the board specified with <board>\n" |
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" -i <file> read input from the file <file>\n" |
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" -o <file> write output to the file <file>\n" |
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" -v <version> set image version to <version>\n" |
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" -r <region> set image region to <region>\n" |
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" -h show this screen\n" |
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); |
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exit(status); |
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} |
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int main(int argc, char *argv[]) |
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{ |
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int res = EXIT_FAILURE; |
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int buflen; |
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int err; |
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struct stat st; |
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char *buf; |
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int i; |
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uint8_t csum; |
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FILE *outfile, *infile; |
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progname = basename(argv[0]); |
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while ( 1 ) { |
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int c; |
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c = getopt(argc, argv, "B:i:o:v:r:h"); |
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if (c == -1) |
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break; |
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switch (c) { |
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case 'B': |
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board_id = optarg; |
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break; |
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case 'i': |
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ifname = optarg; |
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break; |
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case 'o': |
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ofname = optarg; |
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break; |
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case 'v': |
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version = optarg; |
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break; |
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case 'r': |
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region = optarg; |
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break; |
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case 'h': |
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usage(EXIT_SUCCESS); |
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break; |
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default: |
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usage(EXIT_FAILURE); |
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break; |
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} |
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} |
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if (board_id == NULL) { |
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ERR("no board specified"); |
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goto err; |
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} |
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if (ifname == NULL) { |
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ERR("no input file specified"); |
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goto err; |
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} |
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if (ofname == NULL) { |
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ERR("no output file specified"); |
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goto err; |
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} |
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err = stat(ifname, &st); |
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if (err){ |
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ERRS("stat failed on %s", ifname); |
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goto err; |
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} |
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buflen = st.st_size + DNI_HDR_LEN + 1; |
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buf = malloc(buflen); |
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if (!buf) { |
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ERR("no memory for buffer\n"); |
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goto err; |
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} |
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memset(buf, 0, DNI_HDR_LEN); |
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snprintf(buf, DNI_HDR_LEN, "device:%s\nversion:V%s\nregion:%s\n", |
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board_id, version, region); |
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infile = fopen(ifname, "r"); |
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if (infile == NULL) { |
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ERRS("could not open \"%s\" for reading", ifname); |
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goto err_free; |
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} |
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errno = 0; |
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fread(buf + DNI_HDR_LEN, st.st_size, 1, infile); |
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if (errno != 0) { |
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ERRS("unable to read from file %s", ifname); |
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goto err_close_in; |
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} |
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csum = 0; |
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for (i = 0; i < (st.st_size + DNI_HDR_LEN); i++) |
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csum += buf[i]; |
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csum = 0xff - csum; |
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buf[st.st_size + DNI_HDR_LEN] = csum; |
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outfile = fopen(ofname, "w"); |
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if (outfile == NULL) { |
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ERRS("could not open \"%s\" for writing", ofname); |
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goto err_close_in; |
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} |
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errno = 0; |
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fwrite(buf, buflen, 1, outfile); |
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if (errno) { |
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ERRS("unable to write to file %s", ofname); |
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goto err_close_out; |
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} |
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res = EXIT_SUCCESS; |
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out_flush: |
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fflush(outfile); |
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err_close_out: |
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fclose(outfile); |
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if (res != EXIT_SUCCESS) { |
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unlink(ofname); |
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} |
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err_close_in: |
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fclose(infile); |
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err_free: |
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free(buf); |
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err: |
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return res; |
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} |
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