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Add IPv6 support to wolfSSL_BIO_new_accept and wolfIO_TcpBind. #9308

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Add IPv6 support to wolfSSL_BIO_new_accept and wolfIO_TcpBind. #9308

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8d41d1c
Add IPv6 support to wolfSSL_BIO_new_accept and wolfIO_TcpBind.
kareem-wolfssl Oct 15, 2025
88a55cd
Merge branch 'master' of https://github.com/wolfSSL/wolfssl into zd20603
kareem-wolfssl Oct 15, 2025
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9 changes: 8 additions & 1 deletion src/bio.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2442,7 +2442,14 @@ int wolfSSL_BIO_flush(WOLFSSL_BIO* bio)
WOLFSSL_ENTER("wolfSSL_BIO_new_accept");
bio = wolfSSL_BIO_new(wolfSSL_BIO_s_socket());
if (bio) {
bio->port = (word16)XATOI(port);
const char* portStr = port;
#ifdef WOLFSSL_IPV6
const char* ipv6End = XSTRSTR(port, "]");
if (ipv6End) {
portStr = XSTRSTR(ipv6End, ":");
}
#endif
bio->port = (word16)XATOI(portStr);
bio->type = WOLFSSL_BIO_SOCKET;
}
return bio;
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12 changes: 12 additions & 0 deletions src/wolfio.c
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Expand Up @@ -1508,19 +1508,31 @@ int wolfIO_TcpBind(SOCKET_T* sockfd, word16 port)
#ifdef HAVE_SOCKADDR
int ret = 0;
SOCKADDR_S addr;
#ifdef WOLFSSL_IPV6
socklen_t sockaddr_len = sizeof(SOCKADDR_IN6);
SOCKADDR_IN6 *sin = (SOCKADDR_IN6 *)&addr;
#else
socklen_t sockaddr_len = sizeof(SOCKADDR_IN);
SOCKADDR_IN *sin = (SOCKADDR_IN *)&addr;
#endif

if (sockfd == NULL || port < 1) {
return WOLFSSL_FATAL_ERROR;
}

XMEMSET(&addr, 0, sizeof(addr));

#ifdef WOLFSSL_IPV6
sin->sin6_family = AF_INET6;
sin->sin6_addr = in6addr_any;
sin->sin6_port = XHTONS(port);
*sockfd = (SOCKET_T)socket(AF_INET6, SOCK_STREAM, 0);
#else
sin->sin_family = AF_INET;
sin->sin_addr.s_addr = INADDR_ANY;
sin->sin_port = XHTONS(port);
*sockfd = (SOCKET_T)socket(AF_INET, SOCK_STREAM, 0);
#endif

#ifdef USE_WINDOWS_API
if (*sockfd == SOCKET_INVALID)
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