/*
 *  Copyright 2014-2023 The GmSSL Project. All Rights Reserved.
 *
 *  Licensed under the Apache License, Version 2.0 (the License); you may
 *  not use this file except in compliance with the License.
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 */


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


extern int version_main(int argc, char **argv);
extern int rand_main(int argc, char **argv);
extern int certgen_main(int argc, char **argv);
extern int certparse_main(int argc, char **argv);
extern int certverify_main(int argc, char **argv);
extern int certrevoke_main(int argc, char **argv);
extern int crlget_main(int argc, char **argv);
extern int crlgen_main(int argc, char **argv);
extern int crlparse_main(int argc, char **argv);
extern int crlverify_main(int argc, char **argv);
extern int pbkdf2_main(int argc, char **argv);
extern int reqgen_main(int argc, char **argv);
extern int reqparse_main(int argc, char **argv);
extern int reqsign_main(int argc, char **argv);
extern int sm2keygen_main(int argc, char **argv);
extern int sm2keyparse_main(int argc,char **argv);
extern int sm2sign_main(int argc, char **argv);
extern int sm2verify_main(int argc, char **argv);
extern int sm2encrypt_main(int argc, char **argv);
extern int sm2decrypt_main(int argc, char **argv);
extern int sm3_main(int argc, char **argv);
extern int sm3hmac_main(int argc, char **argv);
extern int sm4_main(int argc, char **argv);
extern int zuc_main(int argc, char **argv);
extern int sm9setup_main(int argc, char **argv);
extern int sm9keygen_main(int argc, char **argv);
extern int sm9sign_main(int argc, char **argv);
extern int sm9verify_main(int argc, char **argv);
extern int sm9encrypt_main(int argc, char **argv);
extern int sm9decrypt_main(int argc, char **argv);
extern int cmsparse_main(int argc, char **argv);
extern int cmsencrypt_main(int argc, char **argv);
extern int cmsdecrypt_main(int argc, char **argv);
extern int cmssign_main(int argc, char **argv);
extern int cmsverify_main(int argc, char **argv);
extern int tlcp_client_main(int argc, char **argv);
extern int tlcp_server_main(int argc, char **argv);
extern int tls12_client_main(int argc, char **argv);
extern int tls12_server_main(int argc, char **argv);
extern int tls13_client_main(int argc, char **argv);
extern int tls13_server_main(int argc, char **argv);
extern int sdfutil_main(int argc, char **argv);
extern int skfutil_main(int argc, char **argv);


static const char *options =
	"command [options]\n"
	"command -help\n"
	"\n"
	"Commands:\n"
	"  help            Print this help message\n"
	"  version         Print version\n"
	"  rand            Generate random bytes\n"
	"  sm2keygen       Generate SM2 keypair\n"
	"  sm2keyparse     Parse SM2 key to hex plaintext\n"
	"  sm2sign         Generate SM2 signature\n"
	"  sm2verify       Verify SM2 signature\n"
	"  sm2encrypt      Encrypt with SM2 public key\n"
	"  sm2decrypt      Decrypt with SM2 private key\n"
	"  sm3             Generate SM3 hash\n"
	"  sm3hmac         Generate SM3 HMAC tag\n"
	"  sm4             Encrypt or decrypt with SM4\n"
	"  zuc             Encrypt or decrypt with ZUC\n"
	"  sm9setup        Generate SM9 master secret\n"
	"  sm9keygen       Generate SM9 private key\n"
	"  sm9sign         Generate SM9 signature\n"
	"  sm9verify       Verify SM9 signature\n"
	"  sm9encrypt      SM9 public key encryption\n"
	"  sm9decrypt      SM9 decryption\n"
	"  pbkdf2          Generate key from password\n"
	"  reqgen          Generate certificate signing request (CSR)\n"
	"  reqsign         Generate certificate from CSR\n"
	"  reqparse        Parse and print a CSR\n"
	"  crlget          Download the CRL of given certificate\n"
	"  crlgen          Sign a CRL with CA certificate and private key\n"
	"  crlverify       Verify a CRL with issuer's certificate\n"
	"  crlparse        Parse and print CRL\n"
	"  certgen         Generate a self-signed certificate\n"
	"  certparse       Parse and print certificates\n"
	"  certverify      Verify certificate chain\n"
	"  certrevoke      Revoke certificate and output RevokedCertificate record\n"
	"  cmsparse        Parse CMS (cryptographic message syntax) file\n"
	"  cmsencrypt      Generate CMS EnvelopedData\n"
	"  cmsdecrypt      Decrypt CMS EnvelopedData\n"
	"  cmssign         Generate CMS SignedData\n"
	"  cmsverify       Verify CMS SignedData\n"
	"  sdfutil         SDF crypto device utility\n"
	"  skfutil         SKF crypto device utility\n"
	"  tlcp_client     TLCP client\n"
	"  tlcp_server     TLCP server\n"
	"  tls12_client    TLS 1.2 client\n"
	"  tls12_server    TLS 1.2 server\n"
	"  tls13_client    TLS 1.3 client\n"
	"  tls13_server    TLS 1.3 server\n"
	"\n"
	"run `gmssl <command> -help` to print help of the given command\n"
	"\n";


int main(int argc, char **argv)
{
	int ret = 1;
	char *prog = argv[0];

	argc--;
	argv++;

	if (argc < 1) {
		printf("Usage: %s %s\n", prog, options);
		return 1;
	}

	while (argc > 0) {
		if (!strcmp(*argv, "help")) {
			printf("usage: %s %s\n", prog, options);
			return 0;
		} else if (!strcmp(*argv, "version")) {
			return version_main(argc, argv);
		} else if (!strcmp(*argv, "rand")) {
			return rand_main(argc, argv);
		} else if (!strcmp(*argv, "certgen")) {
			return certgen_main(argc, argv);
		} else if (!strcmp(*argv, "certparse")) {
			return certparse_main(argc, argv);
		} else if (!strcmp(*argv, "certverify")) {
			return certverify_main(argc, argv);
		} else if (!strcmp(*argv, "certrevoke")) {
			return certrevoke_main(argc, argv);
		} else if (!strcmp(*argv, "crlget")) {
			return crlget_main(argc, argv);
		} else if (!strcmp(*argv, "crlgen")) {
			return crlgen_main(argc, argv);
		} else if (!strcmp(*argv, "crlparse")) {
			return crlparse_main(argc, argv);
		} else if (!strcmp(*argv, "crlverify")) {
			return crlverify_main(argc, argv);
		} else if (!strcmp(*argv, "reqgen")) {
			return reqgen_main(argc, argv);
		} else if (!strcmp(*argv, "reqparse")) {
			return reqparse_main(argc, argv);
		} else if (!strcmp(*argv, "reqsign")) {
			return reqsign_main(argc, argv);
		} else if (!strcmp(*argv, "pbkdf2")) {
			return pbkdf2_main(argc, argv);
		} else if (!strcmp(*argv, "sm2keygen")) {
			return sm2keygen_main(argc, argv);
		} else if (!strcmp(*argv, "sm2keyparse")) {
			return sm2keyparse_main(argc, argv);
		} else if (!strcmp(*argv, "sm2sign")) {
			return sm2sign_main(argc, argv);
		} else if (!strcmp(*argv, "sm2verify")) {
			return sm2verify_main(argc, argv);
		} else if (!strcmp(*argv, "sm2encrypt")) {
			return sm2encrypt_main(argc, argv);
		} else if (!strcmp(*argv, "sm2decrypt")) {
			return sm2decrypt_main(argc, argv);
		} else if (!strcmp(*argv, "sm3")) {
			return sm3_main(argc, argv);
		} else if (!strcmp(*argv, "sm3hmac")) {
			return sm3hmac_main(argc, argv);
		} else if (!strcmp(*argv, "sm4")) {
			return sm4_main(argc, argv);
		} else if (!strcmp(*argv, "zuc")) {
			return zuc_main(argc, argv);
		} else if (!strcmp(*argv, "sm9setup")) {
			return sm9setup_main(argc, argv);
		} else if (!strcmp(*argv, "sm9keygen")) {
			return sm9keygen_main(argc, argv);
		} else if (!strcmp(*argv, "sm9sign")) {
			return sm9sign_main(argc, argv);
		} else if (!strcmp(*argv, "sm9verify")) {
			return sm9verify_main(argc, argv);
		} else if (!strcmp(*argv, "sm9encrypt")) {
			return sm9encrypt_main(argc, argv);
		} else if (!strcmp(*argv, "sm9decrypt")) {
			return sm9decrypt_main(argc, argv);
		} else if (!strcmp(*argv, "cmsparse")) {
			return cmsparse_main(argc, argv);
		} else if (!strcmp(*argv, "cmsencrypt")) {
			return cmsencrypt_main(argc, argv);
		} else if (!strcmp(*argv, "cmsdecrypt")) {
			return cmsdecrypt_main(argc, argv);
		} else if (!strcmp(*argv, "cmssign")) {
			return cmssign_main(argc, argv);
		} else if (!strcmp(*argv, "cmsverify")) {
			return cmsverify_main(argc, argv);
		} else if (!strcmp(*argv, "tlcp_client")) {
			return tlcp_client_main(argc, argv);
		} else if (!strcmp(*argv, "tlcp_server")) {
			return tlcp_server_main(argc, argv);
		} else if (!strcmp(*argv, "tls12_client")) {
			return tls12_client_main(argc, argv);
		} else if (!strcmp(*argv, "tls12_server")) {
			return tls12_server_main(argc, argv);
		} else if (!strcmp(*argv, "tls13_client")) {
			return tls13_client_main(argc, argv);
		} else if (!strcmp(*argv, "tls13_server")) {
			return tls13_server_main(argc, argv);
#ifndef WIN32
		} else if (!strcmp(*argv, "sdfutil")) {
			return sdfutil_main(argc, argv);
		} else if (!strcmp(*argv, "skfutil")) {
			return skfutil_main(argc, argv);
#endif
		} else {
			fprintf(stderr, "%s: illegal option '%s'\n", prog, *argv);
			fprintf(stderr, "usage: %s %s\n", prog, options);
			return 1;
		}

		argc--;
		argv++;
	}

	return ret;
}