mirror of
https://github.com/guanzhi/GmSSL.git
synced 2026-06-20 03:44:15 +08:00
457 lines
11 KiB
C
457 lines
11 KiB
C
/*
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* Copyright 2014-2026 The GmSSL Project. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* not use this file except in compliance with the License.
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <gmssl/mem.h>
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#include <gmssl/sm2.h>
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#include <gmssl/tls.h>
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#include <gmssl/error.h>
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static const char *options = "[-port num] -cert pem -key pem -pass str [-cacert pem] [-verbose]";
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static const char *help =
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"Options\n"
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"\n"
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" -port num Listening port number, default 443\n"
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" -cipher_suite str Supported cipher suites, may appear multiple times, higher priority first\n"
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" -supported_group str Supported elliptic curves, may appear multiple times, higher priority first\n"
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" -sig_alg str Supported signature algorithms\n"
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" -cert pem Server's certificate chain in PEM format\n"
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" -key pem Server's encrypted private key in PEM format\n"
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" -pass str Password to decrypt private key\n"
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" -cert_request Client certificate request\n"
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" -cacert pem CA certificate for client certificate verification\n"
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" -verify_depth num Certificate verification depth\n"
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" -client_cert_optional Allow client send empty Certificate\n"
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" -renegotiation_info Send renegotiation_info response when client supports RFC 5746\n"
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" -verbose Print TLS handshake messages\n"
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"\n"
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#include "tls12_help.h"
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"\n";
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static int do_handshake_select(TLS_CONNECT *conn)
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{
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int ret;
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fd_set rfds;
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fd_set wfds;
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for (;;) {
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ret = tls_do_handshake(conn);
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if (ret == 1) {
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return 1;
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}
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FD_ZERO(&rfds);
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FD_ZERO(&wfds);
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if (ret == TLS_ERROR_RECV_AGAIN) {
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FD_SET(conn->sock, &rfds);
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} else if (ret == TLS_ERROR_SEND_AGAIN) {
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FD_SET(conn->sock, &wfds);
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} else {
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error_print();
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return -1;
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}
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if (select((int)(conn->sock + 1), &rfds, &wfds, NULL, NULL) < 0) {
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error_print();
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return -1;
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}
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}
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}
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static int do_shutdown_select(TLS_CONNECT *conn)
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{
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int ret;
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fd_set rfds;
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fd_set wfds;
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for (;;) {
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ret = tls_shutdown(conn);
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if (ret == 1) {
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return 1;
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}
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FD_ZERO(&rfds);
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FD_ZERO(&wfds);
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if (ret == TLS_ERROR_RECV_AGAIN) {
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FD_SET(conn->sock, &rfds);
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} else if (ret == TLS_ERROR_SEND_AGAIN) {
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FD_SET(conn->sock, &wfds);
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} else {
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error_print();
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return -1;
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}
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if (select((int)(conn->sock + 1), &rfds, &wfds, NULL, NULL) < 0) {
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error_print();
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return -1;
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}
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}
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}
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static int do_send_select(TLS_CONNECT *conn, const uint8_t *buf, size_t len)
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{
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int ret;
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size_t offset = 0;
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fd_set rfds;
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fd_set wfds;
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while (offset < len) {
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size_t sentlen = 0;
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ret = tls_send(conn, buf + offset, len - offset, &sentlen);
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if (ret == 1) {
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offset += sentlen;
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continue;
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}
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FD_ZERO(&rfds);
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FD_ZERO(&wfds);
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if (ret == TLS_ERROR_RECV_AGAIN) {
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FD_SET(conn->sock, &rfds);
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} else if (ret == TLS_ERROR_SEND_AGAIN) {
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FD_SET(conn->sock, &wfds);
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} else {
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error_print();
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return -1;
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}
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if (select((int)(conn->sock + 1), &rfds, &wfds, NULL, NULL) < 0) {
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error_print();
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return -1;
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}
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}
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return 1;
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}
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int tls12_server_main(int argc , char **argv)
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{
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int ret = 1;
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char *prog = argv[0];
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int port = 443;
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int cipher_suites[4];
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size_t cipher_suites_cnt = 0;
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int supported_groups[4];
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size_t supported_groups_cnt = 0;
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int sig_algs[4];
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size_t sig_algs_cnt = 0;
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char *certfiles[4];
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size_t certfiles_cnt = 0;
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char *keyfiles[sizeof(certfiles)/sizeof(certfiles[0])];
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size_t keyfiles_cnt = 0;
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char *passes[sizeof(certfiles)/sizeof(certfiles[0])];
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size_t passes_cnt = 0;
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int cert_request = 0;
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char *cacertfile = NULL;
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int verify_depth = TLS_DEFAULT_VERIFY_DEPTH;
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int client_cert_optional = 0;
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int renegotiation_info = 0;
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int verbose = 0;
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TLS_CTX ctx;
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TLS_CONNECT conn;
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char buf[1600] = {0};
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size_t len = sizeof(buf);
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tls_socket_t sock;
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tls_socket_t conn_sock;
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struct sockaddr_in server_addr;
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struct sockaddr_in client_addr;
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size_t i;
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argc--;
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argv++;
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if (argc < 1) {
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fprintf(stderr, "usage: %s %s\n", prog, options);
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return 1;
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}
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while (argc > 0) {
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if (!strcmp(*argv, "-help")) {
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printf("usage: %s %s\n", prog, options);
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printf("%s\n", help);
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return 0;
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} else if (!strcmp(*argv, "-port")) {
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if (--argc < 1) goto bad;
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port = atoi(*(++argv));
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} else if (!strcmp(*argv, "-cipher_suite")) {
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char *cipher_suite_name;
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int cipher_suite;
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if (cipher_suites_cnt >= sizeof(cipher_suites)/sizeof(cipher_suites[0])) {
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fprintf(stderr, "%s: too many -cipher_suite options\n", prog);
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return -1;
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}
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if (--argc < 1) goto bad;
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cipher_suite_name = *(++argv);
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if ((cipher_suite = tls_cipher_suite_from_name(cipher_suite_name)) == 0) {
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fprintf(stderr, "%s: invalid -cipher_suite '%s' value\n", prog, cipher_suite_name);
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return -1;
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}
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cipher_suites[cipher_suites_cnt] = cipher_suite;
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cipher_suites_cnt++;
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} else if (!strcmp(*argv, "-supported_group")) {
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char *supported_group_name;
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int supported_group;
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if (supported_groups_cnt >= sizeof(supported_groups)/sizeof(supported_groups[0])) {
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fprintf(stderr, "%s: too many -supported_group options\n", prog);
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return -1;
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}
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if (--argc < 1) goto bad;
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supported_group_name = *(++argv);
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if ((supported_group = tls_named_curve_from_name(supported_group_name)) == 0) {
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fprintf(stderr, "%s: -supported_group '%s' not supported\n", prog, supported_group_name);
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return -1;
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}
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supported_groups[supported_groups_cnt++] = supported_group;
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} else if (!strcmp(*argv, "-sig_alg")) {
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char *sig_alg_name;
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int sig_alg;
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if (sig_algs_cnt >= sizeof(sig_algs)/sizeof(sig_algs[0])) {
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fprintf(stderr, "%s: too many -sig_alg options\n", prog);
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return -1;
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}
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if (--argc < 1) goto bad;
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sig_alg_name = *(++argv);
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if ((sig_alg = tls_signature_scheme_from_name(sig_alg_name)) == 0) {
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fprintf(stderr, "%s: -sig_alg '%s' not supported\n", prog, sig_alg_name);
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return -1;
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}
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sig_algs[sig_algs_cnt++] = sig_alg;
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} else if (!strcmp(*argv, "-cert")) {
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if (certfiles_cnt >= sizeof(certfiles)/sizeof(certfiles[0])) {
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fprintf(stderr, "%s: too many -cert options\n", prog);
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return -1;
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}
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if (--argc < 1) goto bad;
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certfiles[certfiles_cnt++] = *(++argv);
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} else if (!strcmp(*argv, "-key")) {
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if (keyfiles_cnt >= sizeof(keyfiles)/sizeof(keyfiles[0])) {
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fprintf(stderr, "%s: too many -key options\n", prog);
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return -1;
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}
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if (--argc < 1) goto bad;
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keyfiles[keyfiles_cnt++] = *(++argv);
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} else if (!strcmp(*argv, "-pass")) {
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if (passes_cnt >= sizeof(passes)/sizeof(passes[0])) {
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fprintf(stderr, "%s: too many -pass options\n", prog);
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return -1;
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}
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if (--argc < 1) goto bad;
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passes[passes_cnt++] = *(++argv);
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} else if (!strcmp(*argv, "-cert_request")) {
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cert_request = 1;
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} else if (!strcmp(*argv, "-cacert")) {
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if (--argc < 1) goto bad;
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cacertfile = *(++argv);
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} else if (!strcmp(*argv, "-verify_depth")) {
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if (--argc < 1) goto bad;
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verify_depth = atoi(*(++argv));
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if (verify_depth < 1) {
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fprintf(stderr, "%s: invalid -verify_depth value '%d'\n", prog, verify_depth);
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return -1;
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}
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} else if (!strcmp(*argv, "-client_cert_optional")) {
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client_cert_optional = 1;
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} else if (!strcmp(*argv, "-renegotiation_info")) {
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renegotiation_info = 1;
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} else if (!strcmp(*argv, "-verbose")) {
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verbose = 5;
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} else {
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fprintf(stderr, "%s: invalid option '%s'\n", prog, *argv);
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return 1;
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bad:
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fprintf(stderr, "%s: option '%s' argument required\n", prog, *argv);
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return 1;
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}
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argc--;
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argv++;
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}
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if (!certfiles_cnt) {
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fprintf(stderr, "%s: '-cert' option required\n", prog);
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return 1;
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}
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if (!keyfiles_cnt) {
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fprintf(stderr, "%s: '-key' option required\n", prog);
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return 1;
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}
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if (!passes_cnt) {
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fprintf(stderr, "%s: '-pass' option required\n", prog);
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return 1;
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}
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if (certfiles_cnt != keyfiles_cnt || keyfiles_cnt != passes_cnt) {
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error_print();
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return -1;
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}
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if (tls_socket_lib_init() != 1) {
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error_print();
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return -1;
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}
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if (tls_ctx_init(&ctx, TLS_protocol_tls12, TLS_server_mode) != 1) {
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error_print();
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return -1;
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}
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if (verbose && tls_ctx_set_verbose(&ctx, verbose) != 1) {
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error_print();
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goto end;
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}
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if (tls_ctx_set_cipher_suites(&ctx, cipher_suites, cipher_suites_cnt) != 1) {
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fprintf(stderr, "%s: context init error\n", prog);
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goto end;
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}
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// supported_groups
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if (supported_groups_cnt > 0) {
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if (tls_ctx_set_supported_groups(&ctx, supported_groups, supported_groups_cnt) != 1) {
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error_print();
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goto end;
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}
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}
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// signature_algorithms
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if (sig_algs_cnt > 0) {
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if (tls_ctx_set_signature_algorithms(&ctx, sig_algs, sig_algs_cnt) != 1) {
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error_print();
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goto end;
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}
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}
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if (renegotiation_info) {
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if (tls12_ctx_set_renegotiation_info(&ctx, 1) != 1) {
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error_print();
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goto end;
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}
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}
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// Certificate
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for (i = 0; i < certfiles_cnt; i++) {
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if (tls_ctx_add_certificate_chain_and_key(&ctx, certfiles[i], keyfiles[i], passes[i]) != 1) {
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error_print();
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goto end;;
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}
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}
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// CertificateRequest
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if (cert_request) {
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if (!cacertfile) {
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fprintf(stderr, "%s: -cacert required by -cert_request\n", prog);
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goto end;
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}
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if (tls_ctx_set_ca_certificates(&ctx, cacertfile, verify_depth) != 1) {
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error_print();
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goto end;
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}
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if (tls_ctx_enable_certificate_request(&ctx, 1) != 1) {
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error_print();
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goto end;
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}
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if (client_cert_optional) {
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if (tls13_ctx_enable_client_certificate_optional(&ctx, 1) != 1) {
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error_print();
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goto end;
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}
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}
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}
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if (tls_socket_create(&sock, AF_INET, SOCK_STREAM, 0) != 1) {
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fprintf(stderr, "%s: create socket error\n", prog);
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goto end;
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}
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server_addr.sin_family = AF_INET;
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server_addr.sin_addr.s_addr = INADDR_ANY;
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server_addr.sin_port = htons(port);
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if (tls_socket_bind(sock, &server_addr) != 1) {
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fprintf(stderr, "%s: socket bind error\n", prog);
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goto end;
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}
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puts("start listen ...\n");
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tls_socket_listen(sock, 1);
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restart:
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//client_addrlen = sizeof(client_addr);
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if (tls_socket_accept(sock, &client_addr, &conn_sock) != 1) {
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fprintf(stderr, "%s: socket accept error\n", prog);
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goto end;
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}
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puts("socket connected\n");
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if (tls_init(&conn, &ctx) != 1) {
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error_print();
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goto end;
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}
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if (tls_set_socket(&conn, conn_sock) != 1) {
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error_print();
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goto end;
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}
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if (tls_socket_set_nonblocking(conn_sock, 1) != 1) {
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error_print();
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goto end;
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}
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if (do_handshake_select(&conn) != 1) {
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error_print();
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goto end;
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}
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for (;;) {
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int rv;
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fd_set fds;
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do {
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FD_ZERO(&fds);
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FD_SET(conn.sock, &fds);
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if (select((int)(conn.sock + 1), &fds, NULL, NULL, NULL) < 0) {
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fprintf(stderr, "%s: select failed\n", prog);
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goto end;
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}
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len = sizeof(buf);
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if ((rv = tls_recv(&conn, (uint8_t *)buf, sizeof(buf), &len)) != 1) {
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if (rv == TLS_ERROR_RECV_AGAIN
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|| rv == TLS_ERROR_SEND_AGAIN) {
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continue;
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}
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if (rv < 0) {
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fprintf(stderr, "%s: recv failure\n", prog);
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} else {
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if (do_shutdown_select(&conn) != 1) {
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fprintf(stderr, "%s: shutdown failure\n", prog);
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}
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fprintf(stderr, "%s: Disconnected by remote\n", prog);
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}
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//tls_socket_close(conn.sock); // FIXME:
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tls_cleanup(&conn);
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goto restart;
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}
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} while (!len);
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if (do_send_select(&conn, (uint8_t *)buf, len) != 1) {
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fprintf(stderr, "%s: send failure, close connection\n", prog);
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tls_socket_close(conn.sock);
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goto end;
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}
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}
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end:
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return ret;
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}
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