#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <pack.h>
#include <sign.h>
#include <unpack.h>
#include <verify.h>

struct entry_point {
	const char *cmd;
	int (* main)(int argc, char *argv[]);
};

struct entry_point entries[] = {
	{ "pack", do_pack },
	{ "sign", do_sign },
	{ "unpack", do_unpack },
	{ "verify", do_verify },
	{ NULL, NULL },
};

int main(int argc, char *argv[])
{
	struct entry_point *entry;

	if (argc < 2) {
		fprintf(stderr, "usage: %s <command>\n", argv[0]);
		return -1;
	}

	for (entry = entries; entry->cmd; ++entry) {
		if (strcmp(entry->cmd, argv[1]) == 0)
			return entry->main(argc, argv);
	}

	fprintf(stderr, "usage: %s <command>\n", argv[0]);
	return -1;
}