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124 lines
2.4 KiB
124 lines
2.4 KiB
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <getopt.h>
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#include <image.h>
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#include <info.h>
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#include <macros.h>
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#include <option.h>
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#include <sign.h>
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enum {
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OPTION_HELP = 'h',
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OPTION_IMAGE = 'i',
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};
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struct args {
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const char *image;
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};
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static struct opt_desc opt_descs[] = {
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{ "-i", "--image=PATH", "the image in ROTS format" },
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{ "-h", "--help", "display this help and exit" },
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{ NULL, NULL, NULL },
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};
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static int parse_args(struct args *args, int argc, char *argv[])
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{
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struct option options[] = {
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{ "help", no_argument, NULL, OPTION_HELP },
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{ "image", required_argument, 0, OPTION_IMAGE },
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{ NULL, 0, 0, 0 },
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};
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int ret;
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while ((ret = getopt_long(argc, (char * const *)argv, "hi:d:k:", options,
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NULL)) >= 0) {
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switch (ret) {
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case OPTION_HELP: return -1;
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case OPTION_IMAGE: args->image = optarg; break;
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default: break;
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}
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}
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return 0;
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}
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void show_get_offset_usage(const char *prog_name, const char *cmd)
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{
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fprintf(stderr, "usage: %s %s [option]...\n\n"
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"print the offset of the payload within an image\n\n", prog_name, cmd);
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format_options(opt_descs);
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}
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void show_get_size_usage(const char *prog_name, const char *cmd)
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{
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fprintf(stderr, "usage: %s %s [option]...\n\n"
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"print the size of the payload within an image\n\n", prog_name, cmd);
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format_options(opt_descs);
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}
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int do_get_offset(int argc, char *argv[])
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{
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struct args args;
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struct rots_hdr hdr;
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FILE *fp;
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if (parse_args(&args, argc, argv) < 0) {
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show_get_offset_usage(argv[0], argv[1]);
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return -1;
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}
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if (!(fp = fopen(args.image, "rb"))) {
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fprintf(stderr, "error: file '%s' not found.\n", args.image);
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return -1;
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}
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if (rots_read_hdr(fp, &hdr) < 0) {
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fprintf(stderr, "error: file '%s' is not a ROTS-image.\n", args.image);
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goto err_close_fp;
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}
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printf("%zu\n", ftell(fp));
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fclose(fp);
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return 0;
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err_close_fp:
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fclose(fp);
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return -1;
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}
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int do_get_size(int argc, char *argv[])
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{
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struct args args;
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struct rots_hdr hdr;
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FILE *fp;
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if (parse_args(&args, argc, argv) < 0) {
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show_get_size_usage(argv[0], argv[1]);
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return -1;
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}
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if (!(fp = fopen(args.image, "rb"))) {
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fprintf(stderr, "error: file '%s' not found.\n", args.image);
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return -1;
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}
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if (rots_read_hdr(fp, &hdr) < 0) {
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fprintf(stderr, "error: file '%s' is not a ROTS-image.\n", args.image);
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goto err_close_fp;
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}
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printf("%zu\n", hdr.size);
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fclose(fp);
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return 0;
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err_close_fp:
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fclose(fp);
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return -1;
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}
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