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Update TLCP/TLS1.2 state machine

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This commit is contained in:
Zhi Guan
2026-06-12 13:39:42 +08:00
parent 6f42fdf31f
commit 473498ad93
6 changed files with 370 additions and 156 deletions
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64
tools/tls12_client.c
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@@ -49,6 +49,53 @@ static const char *help =
#include "tls12_help.h"
"\n";
static int set_socket_nonblocking(tls_socket_t sock)
{
#ifdef WIN32
u_long mode = 1;
if (ioctlsocket(sock, FIONBIO, &mode) != 0) {
error_print();
return -1;
}
#else
int flags;
if ((flags = fcntl(sock, F_GETFL)) < 0
|| fcntl(sock, F_SETFL, flags | O_NONBLOCK) < 0) {
error_print();
return -1;
}
#endif
return 1;
}
static int do_handshake_select(TLS_CONNECT *conn)
{
int ret;
fd_set rfds;
fd_set wfds;
for (;;) {
ret = tls_do_handshake(conn);
if (ret == 1) {
return 1;
}
FD_ZERO(&rfds);
FD_ZERO(&wfds);
if (ret == TLS_ERROR_RECV_AGAIN) {
FD_SET(conn->sock, &rfds);
} else if (ret == TLS_ERROR_SEND_AGAIN) {
FD_SET(conn->sock, &wfds);
} else {
error_print();
return -1;
}
if (select((int)(conn->sock + 1), &rfds, &wfds, NULL, NULL) < 0) {
error_print();
return -1;
}
}
}
int tls12_client_main(int argc, char *argv[])
{
int ret = -1;
@@ -298,7 +345,12 @@ bad:
goto end;
}
if (tls_do_handshake(&conn) != 1) {
if (set_socket_nonblocking(sock) != 1) {
error_print();
goto end;
}
if (do_handshake_select(&conn) != 1) {
fprintf(stderr, "%s: error\n", prog);
goto end;
}
@@ -334,8 +386,16 @@ bad:
if (FD_ISSET(conn.sock, &fds)) {
for (;;) {
int rv;
memset(buf, 0, sizeof(buf));
if (tls_recv(&conn, (uint8_t *)buf, sizeof(buf), &len) != 1) {
len = sizeof(buf);
if ((rv = tls_recv(&conn, (uint8_t *)buf, sizeof(buf), &len)) != 1) {
if (rv == -EAGAIN
|| rv == TLS_ERROR_RECV_AGAIN
|| rv == TLS_ERROR_SEND_AGAIN) {
break;
}
goto end;
}
fwrite(buf, 1, len, stdout);