- Renamed include directory to polarssl
diff --git a/library/net.c b/library/net.c
new file mode 100644
index 0000000..78525c3
--- /dev/null
+++ b/library/net.c
@@ -0,0 +1,346 @@
+/*
+ * TCP networking functions
+ *
+ * Copyright (C) 2006-2007 Christophe Devine
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "xyssl/config.h"
+
+#if defined(XYSSL_NET_C)
+
+#include "xyssl/net.h"
+
+#if defined(WIN32) || defined(_WIN32_WCE)
+
+#include <winsock2.h>
+#include <windows.h>
+
+#if defined(_WIN32_WCE)
+#pragma comment( lib, "ws2.lib" )
+#else
+#pragma comment( lib, "ws2_32.lib" )
+#endif
+
+#define read(fd,buf,len) recv(fd,buf,len,0)
+#define write(fd,buf,len) send(fd,buf,len,0)
+#define close(fd) closesocket(fd)
+
+static int wsa_init_done = 0;
+
+#else
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <netdb.h>
+#include <errno.h>
+
+#endif
+
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+
+/*
+ * htons() is not always available
+ */
+static unsigned short net_htons( int port )
+{
+ unsigned char buf[4];
+
+ buf[0] = (unsigned char)( port >> 8 );
+ buf[1] = (unsigned char)( port );
+ buf[2] = buf[3] = 0;
+
+ return( *(unsigned short *) buf );
+}
+
+/*
+ * Initiate a TCP connection with host:port
+ */
+int net_connect( int *fd, char *host, int port )
+{
+ struct sockaddr_in server_addr;
+ struct hostent *server_host;
+
+#if defined(WIN32) || defined(_WIN32_WCE)
+ WSADATA wsaData;
+
+ if( wsa_init_done == 0 )
+ {
+ if( WSAStartup( MAKEWORD(2,0), &wsaData ) == SOCKET_ERROR )
+ return( XYSSL_ERR_NET_SOCKET_FAILED );
+
+ wsa_init_done = 1;
+ }
+#else
+ signal( SIGPIPE, SIG_IGN );
+#endif
+
+ if( ( server_host = gethostbyname( host ) ) == NULL )
+ return( XYSSL_ERR_NET_UNKNOWN_HOST );
+
+ if( ( *fd = socket( AF_INET, SOCK_STREAM, IPPROTO_IP ) ) < 0 )
+ return( XYSSL_ERR_NET_SOCKET_FAILED );
+
+ memcpy( (void *) &server_addr.sin_addr,
+ (void *) server_host->h_addr,
+ server_host->h_length );
+
+ server_addr.sin_family = AF_INET;
+ server_addr.sin_port = net_htons( port );
+
+ if( connect( *fd, (struct sockaddr *) &server_addr,
+ sizeof( server_addr ) ) < 0 )
+ {
+ close( *fd );
+ return( XYSSL_ERR_NET_CONNECT_FAILED );
+ }
+
+ return( 0 );
+}
+
+/*
+ * Create a listening socket on bind_ip:port
+ */
+int net_bind( int *fd, char *bind_ip, int port )
+{
+ int n, c[4];
+ struct sockaddr_in server_addr;
+
+#if defined(WIN32) || defined(_WIN32_WCE)
+ WSADATA wsaData;
+
+ if( wsa_init_done == 0 )
+ {
+ if( WSAStartup( MAKEWORD(2,0), &wsaData ) == SOCKET_ERROR )
+ return( XYSSL_ERR_NET_SOCKET_FAILED );
+
+ wsa_init_done = 1;
+ }
+#else
+ signal( SIGPIPE, SIG_IGN );
+#endif
+
+ if( ( *fd = socket( AF_INET, SOCK_STREAM, IPPROTO_IP ) ) < 0 )
+ return( XYSSL_ERR_NET_SOCKET_FAILED );
+
+ n = 1;
+ setsockopt( *fd, SOL_SOCKET, SO_REUSEADDR,
+ (const char *) &n, sizeof( n ) );
+
+ server_addr.sin_addr.s_addr = INADDR_ANY;
+ server_addr.sin_family = AF_INET;
+ server_addr.sin_port = net_htons( port );
+
+ if( bind_ip != NULL )
+ {
+ memset( c, 0, sizeof( c ) );
+ sscanf( bind_ip, "%d.%d.%d.%d", &c[0], &c[1], &c[2], &c[3] );
+
+ for( n = 0; n < 4; n++ )
+ if( c[n] < 0 || c[n] > 255 )
+ break;
+
+ if( n == 4 )
+ server_addr.sin_addr.s_addr =
+ ( (unsigned long) c[0] << 24 ) |
+ ( (unsigned long) c[1] << 16 ) |
+ ( (unsigned long) c[2] << 8 ) |
+ ( (unsigned long) c[3] );
+ }
+
+ if( bind( *fd, (struct sockaddr *) &server_addr,
+ sizeof( server_addr ) ) < 0 )
+ {
+ close( *fd );
+ return( XYSSL_ERR_NET_BIND_FAILED );
+ }
+
+ if( listen( *fd, 10 ) != 0 )
+ {
+ close( *fd );
+ return( XYSSL_ERR_NET_LISTEN_FAILED );
+ }
+
+ return( 0 );
+}
+
+/*
+ * Check if the current operation is blocking
+ */
+static int net_is_blocking( void )
+{
+#if defined(WIN32) || defined(_WIN32_WCE)
+ return( WSAGetLastError() == WSAEWOULDBLOCK );
+#else
+ switch( errno )
+ {
+#if defined EAGAIN
+ case EAGAIN:
+#endif
+#if defined EWOULDBLOCK && EWOULDBLOCK != EAGAIN
+ case EWOULDBLOCK:
+#endif
+ return( 1 );
+ }
+ return( 0 );
+#endif
+}
+
+/*
+ * Accept a connection from a remote client
+ */
+int net_accept( int bind_fd, int *client_fd, void *client_ip )
+{
+ struct sockaddr_in client_addr;
+
+#if defined(__socklen_t_defined)
+ socklen_t n = (socklen_t) sizeof( client_addr );
+#else
+ int n = (int) sizeof( client_addr );
+#endif
+
+ *client_fd = accept( bind_fd, (struct sockaddr *)
+ &client_addr, &n );
+
+ if( *client_fd < 0 )
+ {
+ if( net_is_blocking() != 0 )
+ return( XYSSL_ERR_NET_TRY_AGAIN );
+
+ return( XYSSL_ERR_NET_ACCEPT_FAILED );
+ }
+
+ if( client_ip != NULL )
+ memcpy( client_ip, &client_addr.sin_addr.s_addr,
+ sizeof( client_addr.sin_addr.s_addr ) );
+
+ return( 0 );
+}
+
+/*
+ * Set the socket blocking or non-blocking
+ */
+int net_set_block( int fd )
+{
+#if defined(WIN32) || defined(_WIN32_WCE)
+ long n = 0;
+ return( ioctlsocket( fd, FIONBIO, &n ) );
+#else
+ return( fcntl( fd, F_SETFL, fcntl( fd, F_GETFL ) & ~O_NONBLOCK ) );
+#endif
+}
+
+int net_set_nonblock( int fd )
+{
+#if defined(WIN32) || defined(_WIN32_WCE)
+ long n = 1;
+ return( ioctlsocket( fd, FIONBIO, &n ) );
+#else
+ return( fcntl( fd, F_SETFL, fcntl( fd, F_GETFL ) | O_NONBLOCK ) );
+#endif
+}
+
+/*
+ * Portable usleep helper
+ */
+void net_usleep( unsigned long usec )
+{
+ struct timeval tv;
+ tv.tv_sec = 0;
+ tv.tv_usec = usec;
+ select( 0, NULL, NULL, NULL, &tv );
+}
+
+/*
+ * Read at most 'len' characters
+ */
+int net_recv( void *ctx, unsigned char *buf, int len )
+{
+ int ret = read( *((int *) ctx), buf, len );
+
+ if( len > 0 && ret == 0 )
+ return( XYSSL_ERR_NET_CONN_RESET );
+
+ if( ret < 0 )
+ {
+ if( net_is_blocking() != 0 )
+ return( XYSSL_ERR_NET_TRY_AGAIN );
+
+#if defined(WIN32) || defined(_WIN32_WCE)
+ if( WSAGetLastError() == WSAECONNRESET )
+ return( XYSSL_ERR_NET_CONN_RESET );
+#else
+ if( errno == EPIPE || errno == ECONNRESET )
+ return( XYSSL_ERR_NET_CONN_RESET );
+
+ if( errno == EINTR )
+ return( XYSSL_ERR_NET_TRY_AGAIN );
+#endif
+
+ return( XYSSL_ERR_NET_RECV_FAILED );
+ }
+
+ return( ret );
+}
+
+/*
+ * Write at most 'len' characters
+ */
+int net_send( void *ctx, unsigned char *buf, int len )
+{
+ int ret = write( *((int *) ctx), buf, len );
+
+ if( ret < 0 )
+ {
+ if( net_is_blocking() != 0 )
+ return( XYSSL_ERR_NET_TRY_AGAIN );
+
+#if defined(WIN32) || defined(_WIN32_WCE)
+ if( WSAGetLastError() == WSAECONNRESET )
+ return( XYSSL_ERR_NET_CONN_RESET );
+#else
+ if( errno == EPIPE || errno == ECONNRESET )
+ return( XYSSL_ERR_NET_CONN_RESET );
+
+ if( errno == EINTR )
+ return( XYSSL_ERR_NET_TRY_AGAIN );
+#endif
+
+ return( XYSSL_ERR_NET_SEND_FAILED );
+ }
+
+ return( ret );
+}
+
+/*
+ * Gracefully close the connection
+ */
+void net_close( int fd )
+{
+ shutdown( fd, 2 );
+ close( fd );
+}
+
+#endif