net.c File Reference

#include "config.h"
#include "ws2tcpip.h"
#include <stdarg.h>
#include <stdio.h>
#include <assert.h>
#include "windef.h"
#include "winbase.h"
#include "winhttp.h"
#include "schannel.h"
#include "wine/debug.h"
#include "wine/library.h"
#include "winhttp_private.h"

Include dependency graph for net.c:

Go to the source code of this file.

Classes
struct	async_resolve

Macros
#define	NONAMELESSUNION

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (winhttp)
static int	sock_send (int fd, const void *msg, size_t len, int flags)
static int	sock_recv (int fd, void *msg, size_t len, int flags)
static DWORD	netconn_verify_cert (PCCERT_CONTEXT cert, WCHAR *server, DWORD security_flags, BOOL check_revocation)
void	netconn_unload (void)
static BOOL WINAPI	winsock_startup (INIT_ONCE *once, void *param, void **ctx)
static void	winsock_init (void)
static void	set_blocking (struct netconn *conn, BOOL blocking)
struct netconn *	netconn_create (struct hostdata *host, const struct sockaddr_storage *sockaddr, int timeout)
void	netconn_close (struct netconn *conn)
BOOL	netconn_secure_connect (struct netconn *conn, WCHAR *hostname, DWORD security_flags, CredHandle *cred_handle, BOOL check_revocation)
static BOOL	send_ssl_chunk (struct netconn *conn, const void *msg, size_t size)
BOOL	netconn_send (struct netconn *conn, const void *msg, size_t len, int *sent)
static BOOL	read_ssl_chunk (struct netconn *conn, void *buf, SIZE_T buf_size, SIZE_T *ret_size, BOOL *eof)
BOOL	netconn_recv (struct netconn *conn, void *buf, size_t len, int flags, int *recvd)
ULONG	netconn_query_data_available (struct netconn *conn)
DWORD	netconn_set_timeout (struct netconn *netconn, BOOL send, int value)
BOOL	netconn_is_alive (struct netconn *netconn)
static DWORD	resolve_hostname (const WCHAR *name, INTERNET_PORT port, struct sockaddr_storage *sa)
static void CALLBACK	resolve_proc (TP_CALLBACK_INSTANCE *instance, void *ctx)
BOOL	netconn_resolve (WCHAR *hostname, INTERNET_PORT port, struct sockaddr_storage *addr, int timeout)
const void *	netconn_get_certificate (struct netconn *conn)
int	netconn_get_cipher_strength (struct netconn *conn)

Variables
static BOOL	winsock_loaded

Macro Definition Documentation

NONAMELESSUNION

#define NONAMELESSUNION

Definition at line 21 of file net.c.

Function Documentation

netconn_close()

void netconn_close

(

struct netconn *

conn

)

Definition at line 250 of file net.c.

{
    if (conn->secure)
    {
        heap_free( conn->peek_msg_mem );
        heap_free(conn->ssl_buf);
        heap_free(conn->extra_buf);
        DeleteSecurityContext(&conn->ssl_ctx);
    }
    closesocket( conn->socket );
    release_host( conn->host );
    heap_free(conn);
}

Referenced by close_connection(), connection_collector(), handle_redirect(), and open_connection().

netconn_create()

struct netconn * netconn_create	(	struct hostdata *	host,
		const struct sockaddr_storage *	sockaddr,
		int	timeout
	)

Definition at line 186 of file net.c.

{
    struct netconn *conn;
    unsigned int addr_len;
    BOOL ret = FALSE;
 
#ifndef __REACTOS__
    winsock_init();
#endif
 
    conn = heap_alloc_zero(sizeof(*conn));
    if (!conn) return NULL;
    conn->host = host;
    conn->sockaddr = *sockaddr;
    if ((conn->socket = socket( sockaddr->ss_family, SOCK_STREAM, 0 )) == -1)
    {
        WARN("unable to create socket (%u)\n", WSAGetLastError());
        heap_free(conn);
        return NULL;
    }
 
    switch (conn->sockaddr.ss_family)
    {
    case AF_INET:
        addr_len = sizeof(struct sockaddr_in);
        break;
    case AF_INET6:
        addr_len = sizeof(struct sockaddr_in6);
        break;
    default:
        assert(0);
    }
 
    if (timeout > 0) set_blocking( conn, FALSE );
 
    if (!connect( conn->socket, (const struct sockaddr *)&conn->sockaddr, addr_len )) ret = TRUE;
    else
    {
        DWORD err = WSAGetLastError();
        if (err == WSAEWOULDBLOCK || err == WSAEINPROGRESS)
        {
            FD_SET set;
            TIMEVAL timeval = { 0, timeout * 1000 };
            int res;
 
            FD_ZERO( &set );
            FD_SET( conn->socket, &set );
            if ((res = select( conn->socket + 1, NULL, &set, NULL, &timeval )) > 0) ret = TRUE;
            else if (!res) SetLastError( ERROR_WINHTTP_TIMEOUT );
        }
    }
 
    if (timeout > 0) set_blocking( conn, TRUE );
 
    if (!ret)
    {
        WARN("unable to connect to host (%u)\n", GetLastError());
        closesocket( conn->socket );
        heap_free( conn );
        return NULL;
    }
    return conn;
}

Referenced by open_connection().

netconn_get_certificate()

const void * netconn_get_certificate

(

struct netconn *

conn

)

Definition at line 758 of file net.c.

{
    const CERT_CONTEXT *ret;
    SECURITY_STATUS res;
 
    if (!conn->secure) return NULL;
    res = QueryContextAttributesW(&conn->ssl_ctx, SECPKG_ATTR_REMOTE_CERT_CONTEXT, (void*)&ret);
    return res == SEC_E_OK ? ret : NULL;
}

Referenced by open_connection().

netconn_get_cipher_strength()

int netconn_get_cipher_strength

(

struct netconn *

conn

)

Definition at line 768 of file net.c.

{
    SecPkgContext_ConnectionInfo conn_info;
    SECURITY_STATUS res;
 
    if (!conn->secure) return 0;
    res = QueryContextAttributesW(&conn->ssl_ctx, SECPKG_ATTR_CONNECTION_INFO, (void*)&conn_info);
    if(res != SEC_E_OK)
        WARN("QueryContextAttributesW failed: %08x\n", res);
    return res == SEC_E_OK ? conn_info.dwCipherStrength : 0;
}

Referenced by request_query_option().

netconn_is_alive()

BOOL netconn_is_alive

(

struct netconn *

netconn

)

Definition at line 608 of file net.c.

{
    int len;
    char b;
    DWORD err;
 
    set_blocking( netconn, FALSE );
    len = sock_recv( netconn->socket, &b, 1, MSG_PEEK );
    err = WSAGetLastError();
    set_blocking( netconn, TRUE );
 
    return len == 1 || (len == -1 && err == WSAEWOULDBLOCK);
}

Referenced by open_connection().

netconn_query_data_available()

ULONG netconn_query_data_available

(

struct netconn *

conn

)

Definition at line 591 of file net.c.

{
    return conn->secure ? conn->peek_len : 0;
}

Referenced by query_data_available().

netconn_recv()

BOOL netconn_recv	(	struct netconn *	conn,
		void *	buf,
		size_t	len,
		int	flags,
		int *	recvd
	)

Definition at line 539 of file net.c.

{
    *recvd = 0;
    if (!len) return TRUE;
 
    if (conn->secure)
    {
        SIZE_T size, cread;
        BOOL res, eof;
 
        if (conn->peek_msg)
        {
            *recvd = min( len, conn->peek_len );
            memcpy( buf, conn->peek_msg, *recvd );
            conn->peek_len -= *recvd;
            conn->peek_msg += *recvd;
 
            if (conn->peek_len == 0)
            {
                heap_free( conn->peek_msg_mem );
                conn->peek_msg_mem = NULL;
                conn->peek_msg = NULL;
            }
            /* check if we have enough data from the peek buffer */
            if (!(flags & MSG_WAITALL) || *recvd == len) return TRUE;
        }
        size = *recvd;
 
        do {
            res = read_ssl_chunk(conn, (BYTE*)buf+size, len-size, &cread, &eof);
            if(!res) {
                WARN("read_ssl_chunk failed\n");
                if(!size)
                    return FALSE;
                break;
            }
 
            if(eof) {
                TRACE("EOF\n");
                break;
            }
 
            size += cread;
        }while(!size || ((flags & MSG_WAITALL) && size < len));
 
        TRACE("received %ld bytes\n", size);
        *recvd = size;
        return TRUE;
    }
    return ((*recvd = sock_recv( conn->socket, buf, len, flags )) != -1);
}

Referenced by read_more_data().

netconn_resolve()

BOOL netconn_resolve	(	WCHAR *	hostname,
		INTERNET_PORT	port,
		struct sockaddr_storage *	addr,
		int	timeout
	)

Definition at line 725 of file net.c.

{
    DWORD ret;
 
    if (!timeout) ret = resolve_hostname( hostname, port, addr );
    else
    {
        struct async_resolve async;
 
        async.hostname = hostname;
        async.port     = port;
        async.addr     = addr;
        if (!(async.done = CreateEventW( NULL, FALSE, FALSE, NULL ))) return FALSE;
        if (!TrySubmitThreadpoolCallback( resolve_proc, &async, NULL ))
        {
            CloseHandle( async.done );
            return FALSE;
        }
        if (WaitForSingleObject( async.done, timeout ) != WAIT_OBJECT_0) ret = ERROR_WINHTTP_TIMEOUT;
        else ret = async.result;
        CloseHandle( async.done );
    }
 
    if (ret)
    {
        SetLastError( ret );
        return FALSE;
    }
    return TRUE;
}

Referenced by open_connection().

netconn_secure_connect()

BOOL netconn_secure_connect	(	struct netconn *	conn,
		WCHAR *	hostname,
		DWORD	security_flags,
		CredHandle *	cred_handle,
		BOOL	check_revocation
	)

Definition at line 264 of file net.c.

{
    SecBuffer out_buf = {0, SECBUFFER_TOKEN, NULL}, in_bufs[2] = {{0, SECBUFFER_TOKEN}, {0, SECBUFFER_EMPTY}};
    SecBufferDesc out_desc = {SECBUFFER_VERSION, 1, &out_buf}, in_desc = {SECBUFFER_VERSION, 2, in_bufs};
    BYTE *read_buf;
    SIZE_T read_buf_size = 2048;
    ULONG attrs = 0;
    CtxtHandle ctx;
    SSIZE_T size;
    const CERT_CONTEXT *cert;
    SECURITY_STATUS status;
    DWORD res = ERROR_SUCCESS;
 
    const DWORD isc_req_flags = ISC_REQ_ALLOCATE_MEMORY|ISC_REQ_USE_SESSION_KEY|ISC_REQ_CONFIDENTIALITY
        |ISC_REQ_SEQUENCE_DETECT|ISC_REQ_REPLAY_DETECT|ISC_REQ_MANUAL_CRED_VALIDATION;
 
    read_buf = heap_alloc(read_buf_size);
    if(!read_buf)
        return FALSE;
 
    status = InitializeSecurityContextW(cred_handle, NULL, hostname, isc_req_flags, 0, 0, NULL, 0,
            &ctx, &out_desc, &attrs, NULL);
 
    assert(status != SEC_E_OK);
 
    while(status == SEC_I_CONTINUE_NEEDED || status == SEC_E_INCOMPLETE_MESSAGE) {
        if(out_buf.cbBuffer) {
            assert(status == SEC_I_CONTINUE_NEEDED);
 
            TRACE("sending %u bytes\n", out_buf.cbBuffer);
 
            size = sock_send(conn->socket, out_buf.pvBuffer, out_buf.cbBuffer, 0);
            if(size != out_buf.cbBuffer) {
                ERR("send failed\n");
                res = ERROR_WINHTTP_SECURE_CHANNEL_ERROR;
                break;
            }
 
            FreeContextBuffer(out_buf.pvBuffer);
            out_buf.pvBuffer = NULL;
            out_buf.cbBuffer = 0;
        }
 
        if(status == SEC_I_CONTINUE_NEEDED) {
            assert(in_bufs[1].cbBuffer < read_buf_size);
 
            memmove(read_buf, (BYTE*)in_bufs[0].pvBuffer+in_bufs[0].cbBuffer-in_bufs[1].cbBuffer, in_bufs[1].cbBuffer);
            in_bufs[0].cbBuffer = in_bufs[1].cbBuffer;
 
            in_bufs[1].BufferType = SECBUFFER_EMPTY;
            in_bufs[1].cbBuffer = 0;
            in_bufs[1].pvBuffer = NULL;
        }
 
        assert(in_bufs[0].BufferType == SECBUFFER_TOKEN);
        assert(in_bufs[1].BufferType == SECBUFFER_EMPTY);
 
        if(in_bufs[0].cbBuffer + 1024 > read_buf_size) {
            BYTE *new_read_buf;
 
            new_read_buf = heap_realloc(read_buf, read_buf_size + 1024);
            if(!new_read_buf) {
                status = E_OUTOFMEMORY;
                break;
            }
 
            in_bufs[0].pvBuffer = read_buf = new_read_buf;
            read_buf_size += 1024;
        }
 
        size = sock_recv(conn->socket, read_buf+in_bufs[0].cbBuffer, read_buf_size-in_bufs[0].cbBuffer, 0);
        if(size < 1) {
            status = ERROR_WINHTTP_SECURE_CHANNEL_ERROR;
            break;
        }
 
        TRACE("recv %lu bytes\n", size);
 
        in_bufs[0].cbBuffer += size;
        in_bufs[0].pvBuffer = read_buf;
        status = InitializeSecurityContextW(cred_handle, &ctx, hostname,  isc_req_flags, 0, 0, &in_desc,
                0, NULL, &out_desc, &attrs, NULL);
        TRACE("InitializeSecurityContext ret %08x\n", status);
 
        if(status == SEC_E_OK) {
            if(in_bufs[1].BufferType == SECBUFFER_EXTRA)
                FIXME("SECBUFFER_EXTRA not supported\n");
 
            status = QueryContextAttributesW(&ctx, SECPKG_ATTR_STREAM_SIZES, &conn->ssl_sizes);
            if(status != SEC_E_OK) {
                WARN("Could not get sizes\n");
                break;
            }
 
            status = QueryContextAttributesW(&ctx, SECPKG_ATTR_REMOTE_CERT_CONTEXT, (void*)&cert);
            if(status == SEC_E_OK) {
                res = netconn_verify_cert(cert, hostname, security_flags, check_revocation);
                CertFreeCertificateContext(cert);
                if(res != ERROR_SUCCESS) {
                    WARN("cert verify failed: %u\n", res);
                    break;
                }
            }else {
                WARN("Could not get cert\n");
                break;
            }
 
            conn->ssl_buf = heap_alloc(conn->ssl_sizes.cbHeader + conn->ssl_sizes.cbMaximumMessage + conn->ssl_sizes.cbTrailer);
            if(!conn->ssl_buf) {
                res = GetLastError();
                break;
            }
        }
    }
 
    heap_free(read_buf);
 
    if(status != SEC_E_OK || res != ERROR_SUCCESS) {
        WARN("Failed to initialize security context failed: %08x\n", status);
        heap_free(conn->ssl_buf);
        conn->ssl_buf = NULL;
        DeleteSecurityContext(&ctx);
        SetLastError(res ? res : ERROR_WINHTTP_SECURE_CHANNEL_ERROR);
        return FALSE;
    }
 
 
    TRACE("established SSL connection\n");
    conn->secure = TRUE;
    conn->ssl_ctx = ctx;
    return TRUE;
}

Referenced by open_connection().

netconn_send()

BOOL netconn_send	(	struct netconn *	conn,
		const void *	msg,
		size_t	len,
		int *	sent
	)

Definition at line 424 of file net.c.

{
    if (conn->secure)
    {
        const BYTE *ptr = msg;
        size_t chunk_size;
 
        *sent = 0;
 
        while(len) {
            chunk_size = min(len, conn->ssl_sizes.cbMaximumMessage);
            if(!send_ssl_chunk(conn, ptr, chunk_size))
                return FALSE;
 
            *sent += chunk_size;
            ptr += chunk_size;
            len -= chunk_size;
        }
 
        return TRUE;
    }
    return ((*sent = sock_send( conn->socket, msg, len, 0 )) != -1);
}

Referenced by secure_proxy_connect(), send_request(), and write_data().

netconn_set_timeout()

DWORD netconn_set_timeout	(	struct netconn *	netconn,
		BOOL	send,
		int	value
	)

Definition at line 596 of file net.c.

{
    int opt = send ? SO_SNDTIMEO : SO_RCVTIMEO;
    if (setsockopt( netconn->socket, SOL_SOCKET, opt, (void *)&value, sizeof(value) ) == -1)
    {
        DWORD err = WSAGetLastError();
        WARN("setsockopt failed (%u)\n", err );
        return err;
    }
    return ERROR_SUCCESS;
}

Referenced by open_connection(), receive_response(), and WinHttpSetTimeouts().

netconn_unload()

void netconn_unload

(

void

)

Definition at line 156 of file net.c.

{
    if (winsock_loaded) WSACleanup();
}

Referenced by DllMain().

netconn_verify_cert()

static DWORD netconn_verify_cert ( PCCERT_CONTEXT  cert, WCHAR *  server, DWORD  security_flags, BOOL  check_revocation  )

static

Definition at line 60 of file net.c.

{
    HCERTSTORE store = cert->hCertStore;
    BOOL ret;
    CERT_CHAIN_PARA chainPara = { sizeof(chainPara), { 0 } };
    PCCERT_CHAIN_CONTEXT chain;
    char oid_server_auth[] = szOID_PKIX_KP_SERVER_AUTH;
    char *server_auth[] = { oid_server_auth };
    DWORD err = ERROR_SUCCESS;
 
    TRACE("verifying %s\n", debugstr_w( server ));
    chainPara.RequestedUsage.Usage.cUsageIdentifier = 1;
    chainPara.RequestedUsage.Usage.rgpszUsageIdentifier = server_auth;
    ret = CertGetCertificateChain( NULL, cert, NULL, store, &chainPara,
                                   check_revocation ? CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT : 0,
                                   NULL, &chain );
    if (ret)
    {
        if (chain->TrustStatus.dwErrorStatus)
        {
            static const DWORD supportedErrors =
                CERT_TRUST_IS_NOT_TIME_VALID |
                CERT_TRUST_IS_UNTRUSTED_ROOT |
                CERT_TRUST_IS_NOT_VALID_FOR_USAGE;
 
            if (chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_NOT_TIME_VALID)
            {
                if (!(security_flags & SECURITY_FLAG_IGNORE_CERT_DATE_INVALID))
                    err = ERROR_WINHTTP_SECURE_CERT_DATE_INVALID;
            }
            else if (chain->TrustStatus.dwErrorStatus &
                     CERT_TRUST_IS_UNTRUSTED_ROOT)
            {
                if (!(security_flags & SECURITY_FLAG_IGNORE_UNKNOWN_CA))
                    err = ERROR_WINHTTP_SECURE_INVALID_CA;
            }
            else if ((chain->TrustStatus.dwErrorStatus &
                      CERT_TRUST_IS_OFFLINE_REVOCATION) ||
                     (chain->TrustStatus.dwErrorStatus &
                      CERT_TRUST_REVOCATION_STATUS_UNKNOWN))
                err = ERROR_WINHTTP_SECURE_CERT_REV_FAILED;
            else if (chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_REVOKED)
                err = ERROR_WINHTTP_SECURE_CERT_REVOKED;
            else if (chain->TrustStatus.dwErrorStatus &
                CERT_TRUST_IS_NOT_VALID_FOR_USAGE)
            {
                if (!(security_flags & SECURITY_FLAG_IGNORE_CERT_WRONG_USAGE))
                    err = ERROR_WINHTTP_SECURE_CERT_WRONG_USAGE;
            }
            else if (chain->TrustStatus.dwErrorStatus & ~supportedErrors)
                err = ERROR_WINHTTP_SECURE_INVALID_CERT;
        }
        if (!err)
        {
            CERT_CHAIN_POLICY_PARA policyPara;
            SSL_EXTRA_CERT_CHAIN_POLICY_PARA sslExtraPolicyPara;
            CERT_CHAIN_POLICY_STATUS policyStatus;
            CERT_CHAIN_CONTEXT chainCopy;
 
            /* Clear chain->TrustStatus.dwErrorStatus so
             * CertVerifyCertificateChainPolicy will verify additional checks
             * rather than stopping with an existing, ignored error.
             */
            memcpy(&chainCopy, chain, sizeof(chainCopy));
            chainCopy.TrustStatus.dwErrorStatus = 0;
            sslExtraPolicyPara.u.cbSize = sizeof(sslExtraPolicyPara);
            sslExtraPolicyPara.dwAuthType = AUTHTYPE_SERVER;
            sslExtraPolicyPara.pwszServerName = server;
            sslExtraPolicyPara.fdwChecks = security_flags;
            policyPara.cbSize = sizeof(policyPara);
            policyPara.dwFlags = 0;
            policyPara.pvExtraPolicyPara = &sslExtraPolicyPara;
            ret = CertVerifyCertificateChainPolicy( CERT_CHAIN_POLICY_SSL,
                                                    &chainCopy, &policyPara,
                                                    &policyStatus );
            /* Any error in the policy status indicates that the
             * policy couldn't be verified.
             */
            if (ret && policyStatus.dwError)
            {
                if (policyStatus.dwError == CERT_E_CN_NO_MATCH)
                    err = ERROR_WINHTTP_SECURE_CERT_CN_INVALID;
                else
                    err = ERROR_WINHTTP_SECURE_INVALID_CERT;
            }
        }
        CertFreeCertificateChain( chain );
    }
    else
        err = ERROR_WINHTTP_SECURE_CHANNEL_ERROR;
    TRACE("returning %08x\n", err);
    return err;
}

Referenced by netconn_secure_connect().

read_ssl_chunk()

static BOOL read_ssl_chunk ( struct netconn *  conn, void *  buf, SIZE_T  buf_size, SIZE_T *  ret_size, BOOL *  eof  )

static

Definition at line 448 of file net.c.

{
    const SIZE_T ssl_buf_size = conn->ssl_sizes.cbHeader+conn->ssl_sizes.cbMaximumMessage+conn->ssl_sizes.cbTrailer;
    SecBuffer bufs[4];
    SecBufferDesc buf_desc = {SECBUFFER_VERSION, ARRAY_SIZE(bufs), bufs};
    SSIZE_T size, buf_len;
    unsigned int i;
    SECURITY_STATUS res;
 
    assert(conn->extra_len < ssl_buf_size);
 
    if(conn->extra_len) {
        memcpy(conn->ssl_buf, conn->extra_buf, conn->extra_len);
        buf_len = conn->extra_len;
        conn->extra_len = 0;
        heap_free(conn->extra_buf);
        conn->extra_buf = NULL;
    }else {
        buf_len = sock_recv(conn->socket, conn->ssl_buf+conn->extra_len, ssl_buf_size-conn->extra_len, 0);
        if(buf_len < 0)
            return FALSE;
 
        if(!buf_len) {
            *eof = TRUE;
            return TRUE;
        }
    }
 
    *ret_size = 0;
    *eof = FALSE;
 
    do {
        memset(bufs, 0, sizeof(bufs));
        bufs[0].BufferType = SECBUFFER_DATA;
        bufs[0].cbBuffer = buf_len;
        bufs[0].pvBuffer = conn->ssl_buf;
 
        res = DecryptMessage(&conn->ssl_ctx, &buf_desc, 0, NULL);
        switch(res) {
        case SEC_E_OK:
            break;
        case SEC_I_CONTEXT_EXPIRED:
            TRACE("context expired\n");
            *eof = TRUE;
            return TRUE;
        case SEC_E_INCOMPLETE_MESSAGE:
            assert(buf_len < ssl_buf_size);
 
            size = sock_recv(conn->socket, conn->ssl_buf+buf_len, ssl_buf_size-buf_len, 0);
            if(size < 1)
                return FALSE;
 
            buf_len += size;
            continue;
        default:
            WARN("failed: %08x\n", res);
            return FALSE;
        }
    } while(res != SEC_E_OK);
 
    for(i = 0; i < ARRAY_SIZE(bufs); i++) {
        if(bufs[i].BufferType == SECBUFFER_DATA) {
            size = min(buf_size, bufs[i].cbBuffer);
            memcpy(buf, bufs[i].pvBuffer, size);
            if(size < bufs[i].cbBuffer) {
                assert(!conn->peek_len);
                conn->peek_msg_mem = conn->peek_msg = heap_alloc(bufs[i].cbBuffer - size);
                if(!conn->peek_msg)
                    return FALSE;
                conn->peek_len = bufs[i].cbBuffer-size;
                memcpy(conn->peek_msg, (char*)bufs[i].pvBuffer+size, conn->peek_len);
            }
 
            *ret_size = size;
        }
    }
 
    for(i = 0; i < ARRAY_SIZE(bufs); i++) {
        if(bufs[i].BufferType == SECBUFFER_EXTRA) {
            conn->extra_buf = heap_alloc(bufs[i].cbBuffer);
            if(!conn->extra_buf)
                return FALSE;
 
            conn->extra_len = bufs[i].cbBuffer;
            memcpy(conn->extra_buf, bufs[i].pvBuffer, conn->extra_len);
        }
    }
 
    return TRUE;
}

Referenced by netconn_recv(), and tcp_recv().

resolve_hostname()

static DWORD resolve_hostname ( const WCHAR *  name, INTERNET_PORT  port, struct sockaddr_storage *  sa  )

static

Definition at line 622 of file net.c.

{
    ADDRINFOW *res, hints;
    int ret;
 
    memset( &hints, 0, sizeof(hints) );
    /* Prefer IPv4 to IPv6 addresses, since some web servers do not listen on
     * their IPv6 addresses even though they have IPv6 addresses in the DNS.
     */
    hints.ai_family = AF_INET;
 
    ret = GetAddrInfoW( name, NULL, &hints, &res );
    if (ret != 0)
    {
        TRACE("failed to get IPv4 address of %s, retrying with IPv6\n", debugstr_w(name));
        hints.ai_family = AF_INET6;
        ret = GetAddrInfoW( name, NULL, &hints, &res );
        if (ret != 0)
        {
            TRACE("failed to get address of %s\n", debugstr_w(name));
            return ERROR_WINHTTP_NAME_NOT_RESOLVED;
        }
    }
    memcpy( sa, res->ai_addr, res->ai_addrlen );
    switch (res->ai_family)
    {
    case AF_INET:
        ((struct sockaddr_in *)sa)->sin_port = htons( port );
        break;
    case AF_INET6:
        ((struct sockaddr_in6 *)sa)->sin6_port = htons( port );
        break;
    }
 
    FreeAddrInfoW( res );
    return ERROR_SUCCESS;
}

Referenced by netconn_resolve(), and resolve_proc().

resolve_proc()

static void CALLBACK resolve_proc ( TP_CALLBACK_INSTANCE *  instance, void *  ctx  )

static

Definition at line 718 of file net.c.

{
    struct async_resolve *async = ctx;
    async->result = resolve_hostname( async->hostname, async->port, async->addr );
    SetEvent( async->done );
}

Referenced by netconn_resolve().

send_ssl_chunk()

static BOOL send_ssl_chunk ( struct netconn *  conn, const void *  msg, size_t  size  )

static

Definition at line 398 of file net.c.

{
    SecBuffer bufs[4] = {
        {conn->ssl_sizes.cbHeader, SECBUFFER_STREAM_HEADER, conn->ssl_buf},
        {size,  SECBUFFER_DATA, conn->ssl_buf+conn->ssl_sizes.cbHeader},
        {conn->ssl_sizes.cbTrailer, SECBUFFER_STREAM_TRAILER, conn->ssl_buf+conn->ssl_sizes.cbHeader+size},
        {0, SECBUFFER_EMPTY, NULL}
    };
    SecBufferDesc buf_desc = {SECBUFFER_VERSION, ARRAY_SIZE(bufs), bufs};
    SECURITY_STATUS res;
 
    memcpy(bufs[1].pvBuffer, msg, size);
    res = EncryptMessage(&conn->ssl_ctx, 0, &buf_desc, 0);
    if(res != SEC_E_OK) {
        WARN("EncryptMessage failed\n");
        return FALSE;
    }
 
    if(sock_send(conn->socket, conn->ssl_buf, bufs[0].cbBuffer+bufs[1].cbBuffer+bufs[2].cbBuffer, 0) < 1) {
        WARN("send failed\n");
        return FALSE;
    }
 
    return TRUE;
}

Referenced by netconn_send(), and tcp_send().

set_blocking()

static void set_blocking ( struct netconn *  conn, BOOL  blocking  )

static

Definition at line 180 of file net.c.

{
    ULONG state = !blocking;
    ioctlsocket( conn->socket, FIONBIO, &state );
}

Referenced by netconn_create(), and netconn_is_alive().

sock_recv()

static int sock_recv ( int  fd, void *  msg, size_t  len, int  flags  )

static

Definition at line 49 of file net.c.

{
    int ret;
    do
    {
        if ((ret = recv(fd, msg, len, flags)) == -1) WARN("recv error %u\n", WSAGetLastError());
    }
    while(ret == -1 && WSAGetLastError() == WSAEINTR);
    return ret;
}

Referenced by FTP_GetNextLine(), FTP_ReceiveRequestData(), FTP_RetrieveFileData(), FTPFILE_QueryDataAvailable(), FTPFILE_ReadFile(), netconn_is_alive(), netconn_recv(), netconn_secure_connect(), and read_ssl_chunk().

sock_send()

static int sock_send ( int  fd, const void *  msg, size_t  len, int  flags  )

static

Definition at line 38 of file net.c.

{
    int ret;
    do
    {
        if ((ret = send(fd, msg, len, flags)) == -1) WARN("send error %u\n", WSAGetLastError());
    }
    while(ret == -1 && WSAGetLastError() == WSAEINTR);
    return ret;
}

Referenced by FTP_SendCommandA(), FTP_SendData(), FtpCommandW(), FTPFILE_WriteFile(), netconn_secure_connect(), netconn_send(), and send_ssl_chunk().

WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL

(

winhttp

)

winsock_init()

static void winsock_init ( void  )

static

Definition at line 173 of file net.c.

{
    static INIT_ONCE once = INIT_ONCE_STATIC_INIT;
    InitOnceExecuteOnce( &once, winsock_startup, NULL, NULL );
}

Referenced by netconn_create().

winsock_startup()

static BOOL WINAPI winsock_startup ( INIT_ONCE *  once, void *  param, void **  ctx  )

static

Definition at line 161 of file net.c.

{
    int ret;
    WSADATA data;
    if (!(ret = WSAStartup( MAKEWORD(1,1), &data ))) winsock_loaded = TRUE;
    else ERR( "WSAStartup failed: %d\n", ret );
    return TRUE;
}

Referenced by winsock_init().

Variable Documentation

winsock_loaded

BOOL winsock_loaded

static

Definition at line 154 of file net.c.

Referenced by netconn_unload(), and winsock_startup().