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91 lines
1.9 KiB
91 lines
1.9 KiB
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <info.h>
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#include <pack.h>
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#include <sign.h>
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#include <unpack.h>
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#include <verify.h>
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struct entry {
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const char *cmd;
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int (* main)(int argc, char *argv[]);
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void (* show_usage)(const char *prog_name, const char *cmd);
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char *desc;
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};
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struct entry entries[] = {
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{ "get-offset", do_get_offset, show_get_offset_usage,
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"print the offset of the payload within an image" },
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{ "get-size", do_get_size, show_get_size_usage,
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"print the size of the payload within an image" },
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{ "pack", do_pack, show_pack_usage,
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"pack the payload within an image" },
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{ "sign", do_sign, show_sign_usage,
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"sign an image" },
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{ "unpack", do_unpack, show_unpack_usage,
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"unpack the payload of an image" },
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{ "verify", do_verify, show_verify_usage,
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"verify the signatures of an image" },
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{ NULL, NULL, NULL, NULL },
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};
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static void show_usage(const char *prog_name)
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{
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struct entry *entry;
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fprintf(stderr, "usage: %s <command> ...\n\n"
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"ROTS utilities to work with signed images\n\n"
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"Available commands:\n", prog_name);
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for (entry = entries; entry->cmd; ++entry) {
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fprintf(stderr, "\t%-16s %s\n", entry->cmd, entry->desc);
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}
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}
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static void show_cmd_usage(char *prog_name, char *cmd)
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{
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struct entry *entry;
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for (entry = entries; entry->cmd; ++entry) {
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if (strcmp(entry->cmd, cmd) != 0)
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continue;
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if (!entry->show_usage)
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break;
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entry->show_usage(prog_name, cmd);
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return;
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}
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show_usage(prog_name);
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}
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int main(int argc, char *argv[])
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{
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struct entry *entry;
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if (argc < 2) {
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show_usage(argv[0]);
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return -1;
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}
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if (strcmp(argv[1], "-h") == 0 || strcmp(argv[1], "--help") == 0) {
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if (argc < 3)
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show_usage(argv[0]);
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else
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show_cmd_usage(argv[0], argv[2]);
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return -1;
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}
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for (entry = entries; entry->cmd; ++entry) {
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if (strcmp(entry->cmd, argv[1]) == 0)
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return entry->main(argc, argv);
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}
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show_usage(argv[0]);
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return -1;
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}
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