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Copy pathtls12_client.c
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192 lines (167 loc) · 4.58 KB
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/*
* Copyright 2014-2022 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 <errno.h>
#include <string.h>
#include <stdlib.h>
#include <gmssl/tls.h>
#include <gmssl/error.h>
// TLSv1.2客户单和TLCP客户端可能没有什么区别
static int client_ciphers[] = { TLS_cipher_ecdhe_sm4_cbc_sm3 };
static const char *http_get =
"GET / HTTP/1.1\r\n"
"Hostname: aaa\r\n"
"\r\n\r\n";
static const char *options = "-host str [-port num] [-cacert file] [-cert file -key file -pass str]";
int tls12_client_main(int argc, char *argv[])
{
int ret = -1;
char *prog = argv[0];
char *host = NULL;
int port = 443;
char *cacertfile = NULL;
char *certfile = NULL;
char *keyfile = NULL;
char *pass = NULL;
struct hostent *hp;
struct sockaddr_in server;
tls_socket_t sock;
TLS_CTX ctx;
TLS_CONNECT conn;
char buf[1024] = {0};
size_t len = sizeof(buf);
char send_buf[1024] = {0};
argc--;
argv++;
if (argc < 1) {
fprintf(stderr, "usage: %s %s\n", prog, options);
return 1;
}
while (argc >= 1) {
if (!strcmp(*argv, "-help")) {
printf("usage: %s %s\n", prog, options);
return 0;
} else if (!strcmp(*argv, "-host")) {
if (--argc < 1) goto bad;
host = *(++argv);
} else if (!strcmp(*argv, "-port")) {
if (--argc < 1) goto bad;
port = atoi(*(++argv));
} else if (!strcmp(*argv, "-cacert")) {
if (--argc < 1) goto bad;
cacertfile = *(++argv);
} else if (!strcmp(*argv, "-cert")) {
if (--argc < 1) goto bad;
certfile = *(++argv);
} else if (!strcmp(*argv, "-key")) {
if (--argc < 1) goto bad;
keyfile = *(++argv);
} else if (!strcmp(*argv, "-pass")) {
if (--argc < 1) goto bad;
pass = *(++argv);
} else {
fprintf(stderr, "%s: invalid option '%s'\n", prog, *argv);
return 1;
bad:
fprintf(stderr, "%s: option '%s' argument required\n", prog, *argv);
return 0;
}
argc--;
argv++;
}
if (!host) {
fprintf(stderr, "%s: '-in' option required\n", prog);
return -1;
}
if (!(hp = gethostbyname(host))) {
//herror("tls12_client: '-host' invalid"); // herror() not in winsock2, use WSAGetLastError() instead
goto end;
}
memset(&ctx, 0, sizeof(ctx));
memset(&conn, 0, sizeof(conn));
server.sin_addr = *((struct in_addr *)hp->h_addr_list[0]);
server.sin_family = AF_INET;
server.sin_port = htons(port);
if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
//fprintf(stderr, "%s: open socket error : %s\n", prog, strerror(errno)); //FIXME: WIN32 use WSAGetLastError()
goto end;
}
if (connect(sock, (struct sockaddr *)&server , sizeof(server)) < 0) {
//fprintf(stderr, "%s: connect error : %s\n", prog, strerror(errno)); //
goto end;
}
if (tls_ctx_init(&ctx, TLS_protocol_tls12, TLS_client_mode) != 1
|| tls_ctx_set_cipher_suites(&ctx, client_ciphers, sizeof(client_ciphers)/sizeof(client_ciphers[0])) != 1) {
fprintf(stderr, "%s: context init error\n", prog);
goto end;
}
if (cacertfile) {
if (tls_ctx_set_ca_certificates(&ctx, cacertfile, TLS_DEFAULT_VERIFY_DEPTH) != 1) {
fprintf(stderr, "%s: context init error\n", prog);
goto end;
}
}
if (certfile) {
if (tls_ctx_set_certificate_and_key(&ctx, certfile, keyfile, pass) != 1) {
fprintf(stderr, "%s: context init error\n", prog);
goto end;
}
}
if (tls_init(&conn, &ctx) != 1
|| tls_set_socket(&conn, sock) != 1
|| tls_do_handshake(&conn) != 1) {
fprintf(stderr, "%s: error\n", prog);
goto end;
}
for (;;) {
fd_set fds;
size_t sentlen;
FD_ZERO(&fds);
FD_SET(conn.sock, &fds);
FD_SET(fileno(stdin), &fds);
if (select((int)(conn.sock + 1), &fds, NULL, NULL, NULL) < 0) {
fprintf(stderr, "%s: select failed\n", prog);
goto end;
}
if (FD_ISSET(conn.sock, &fds)) {
for (;;) {
memset(buf, 0, sizeof(buf));
if (tls_recv(&conn, (uint8_t *)buf, sizeof(buf), &len) != 1) {
goto end;
}
fwrite(buf, 1, len, stdout);
fflush(stdout);
// 应该调整tls_recv 逻辑、API或者其他方式
if (conn.datalen == 0) {
break;
}
}
}
if (FD_ISSET(fileno(stdin), &fds)) {
memset(send_buf, 0, sizeof(send_buf));
if (!fgets(send_buf, sizeof(send_buf), stdin)) {
if (feof(stdin)) {
tls_shutdown(&conn);
goto end;
} else {
continue;
}
}
if (tls_send(&conn, (uint8_t *)send_buf, strlen(send_buf), &sentlen) != 1) {
fprintf(stderr, "%s: send error\n", prog);
goto end;
}
}
}
end:
tls_socket_close(sock);
tls_ctx_cleanup(&ctx);
tls_cleanup(&conn);
return 0;
}