diff options
Diffstat (limited to 'src/SocketUtils.h')
| -rw-r--r-- | src/SocketUtils.h | 118 |
1 files changed, 31 insertions, 87 deletions
diff --git a/src/SocketUtils.h b/src/SocketUtils.h index 7f5ddb4..9783351 100644 --- a/src/SocketUtils.h +++ b/src/SocketUtils.h @@ -2,9 +2,10 @@ @header SocketUtils.h @date 1991 @author John Shalf - @desc - - @enddesc + @desc + Header file for thorn Socket which defines routines + to deal with sockets. + @enddesc @version $Header$ @@*/ @@ -16,96 +17,39 @@ extern "C" { #endif -/* #if defined(ANSI) || defined(__STDC__) */ -#ifdef __STDC__ -/* - TCP utilities library (1991) - Last modification Dec 1995 -*/ -/*================================================================== -** name: OpenClientSockTCP -** purpose: Given the hostname of the server and the portnumber of the -** service to connect to, it opens a TCP socket to the host and returns -** the file descriptor of the socket. -** parameters: -** hostname: the name of the server host as a character string (not ip number) -** port: The port number for the server. -** returns: -** integer file descriptor for low level io. Can convert to FILE * -** using the fdopen() system call. -**=================================================================*/ -int Socket_TCPOpenClientSock(const char *hostname, int port); -int Socket_UDPOpenClientSock(const char *hostname, int port); +#include "cctk.h" /* HAVE_WINSOCK2_H */ -/*================================================================== -** name: OpenServerSockTCP -** purpose: Opens a passive TCP connection on "port". After opening -** the socket, the server is automatically set to listen on that socket. -** The programmer need only call accept() to allow connections by clients. -** parameters: -** port: The port number for the server. -** returns: -** integer file descriptor for low level io. Needs to remain a file -** descriptor to accept() client connections. Can convert the client -** connection file descriptor to a FILE * using fdopen(); -**=================================================================*/ -int Socket_TCPOpenServerSock(int port); -int Socket_UDPOpenServerSock(int port); - -/*================================================================== -** name: TCPBlockingWrite -** purpose: Handles error conditions when writing to a file descriptor. -** If a buffer is too large to write in one block, this routine will -** divide the buffer into two segments and recursively call itself to -** send each of the halves. -** parameters: -** fd: file descriptor to write the buffer data to. -** buffer: an array of bytes write to the file stream. -** buflen: number of bytes in the buffer -** returns: -** either the number of characters written or constant describing -** why the write failed. -** notes: If you want the routine to print identifiable errors -** to stderr, define PERRORS. -**=================================================================*/ -int Socket_TCPBlockingWrite(int fd, char *buffer, int buflen); - -/*================================================================== -** name: TCPBlockingRead -** purpose: Handles error conditions when reading from a file descriptor. -** With TCP stream connections, the record size of the recieved stream -** may not coincide with the record written. This routine assembles -** a fragmented record into a single array by blocking until buflen -** characters are recieved, or write returns a premature EOF. -** parameters: -** fd: file descriptor to read the buffer data from. -** buffer: an array of bytes read from the file stream. -** buflen: number of bytes in the buffer -** returns: -** either the number of characters read into the buffer or constant describing -** why the read failed. -** notes: If you want the routine to print out identifiable errors -** to stderr, define PERRORS. -**=================================================================*/ -int Socket_TCPBlockingRead(int fd,char *buffer,int buflen); - - -int Socket_SetNonBlocking(int sock); +/* check what sockets type we have (Unix or Windows sockets) + Note that only MS compilers require to use Windows sockets + but gcc under Windows does not. */ +#if ! defined(HAVE_WINSOCK2_H) || defined(__GNUC__) +#define SOCKET_HAVE_UNIX_SOCKETS 1 +#endif +/* define the socket data type and constants denoting an invalid socket + and an error code returned from a socket call */ +#ifdef SOCKET_HAVE_UNIX_SOCKETS +#define SOCKET int +#define INVALID_SOCKET -1 +#define SOCKET_ERROR -1 #else -int Socket_TCPOpenClientSock(); -int Socket_TCPOpenServerSock(); -int Socket_TCPBlockingWrite(); -int Socket_TCPBlockingRead(); -int Socket_SetNonBlocking(); +/* the SOCKET type and the constants are defined in this header */ +#include <winsock2.h> #endif -#define PERRORS -#ifndef __IN_HEADER -#include <sys/types.h> -#include <netinet/in.h> -#endif +int Socket_InitializeSocketLayer (void); +SOCKET Socket_TCPOpenServerSocket (unsigned int port, unsigned int *hunt, + int backlog); +SOCKET Socket_TCPOpenClientSocket (const char *hostname, unsigned int port); +SOCKET Socket_UDPOpenServerSocket (unsigned int port); +SOCKET Socket_UDPOpenClientSocket (const char *hostname, unsigned int port); +void Socket_CloseSocket (SOCKET s); + +int Socket_TCPBlockingWrite (SOCKET s, const char *buffer, int buflen); +int Socket_TCPBlockingRead (SOCKET s, char *buffer, int buflen); + +int Socket_SetNonBlocking (SOCKET s); #ifdef __cplusplus } |