+++ /dev/null
-/* $Id$ */
-
-/* File transport - send/receive a bunch of bytes from a file */
-
-/* Authors: Martin Quinson */
-/* Copyright (C) 2004 Martin Quinson. */
-
-/* This program is free software; you can redistribute it and/or modify it
- under the terms of the license (GNU LGPL) which comes with this package. */
-
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-
-#include "gras_private.h"
-#include "transport_private.h"
-
-GRAS_LOG_NEW_DEFAULT_SUBCATEGORY(trp_file,transport);
-
-typedef struct {
- int buffsize;
-} gras_trp_tcp_sock_specific_t;
-
-/***
- *** Prototypes
- ***/
-void gras_trp_file_close(gras_socket_t *sd);
-
-gras_error_t gras_trp_file_chunk_send(gras_socket_t *sd,
- char *data,
- size_t size);
-
-gras_error_t gras_trp_file_chunk_recv(gras_socket_t *sd,
- char *data,
- size_t size);
-
-void gras_trp_file_free_specific(void *s);
-
-/***
- *** Specific plugin part
- ***/
-
-typedef struct {
- fd_set incoming_socks;
-} gras_trp_file_specific_t;
-
-/***
- *** Specific socket part
- ***/
-
-
-/***
- *** Code
- ***/
-gras_error_t
-gras_trp_file_init(gras_trp_plugin_t **dst) {
-
- gras_trp_plugin_t *res=malloc(sizeof(gras_trp_plugin_t));
- gras_trp_file_specific_t *specif = malloc(sizeof(gras_trp_file_specific_t));
- if (!res || !specif)
- RAISE_MALLOC;
-
- FD_ZERO(&(specif->incoming_socks));
-
- res->name = strdup("file");
- res->socket_client = NULL;
- res->socket_server = NULL;
- res->socket_accept = NULL;
- res->socket_close = gras_trp_file_close;
-
- res->chunk_send = gras_trp_file_chunk_send;
- res->chunk_recv = gras_trp_file_chunk_recv;
-
- res->specific = (void*)specif;
- res->free_specific = gras_trp_file_free_specific;
-
- *dst = res;
- return no_error;
-}
-
-void gras_trp_file_free_specific(void *s) {
- gras_trp_file_specific_t *specific = s;
- free(specific);
-}
-
-/**
- * gras_socket_client_from_file:
- *
- * Create a client socket from a file path.
- *
- * This only possible in RL, and is mainly for debugging.
- */
-gras_error_t
-gras_socket_client_from_file(const char*path,
- /* OUT */ gras_socket_t **dst) {
- gras_error_t errcode;
- gras_trp_plugin_t *trp;
-
- gras_assert0(gras_if_RL(),
- "Cannot use file as socket in the simulator");
-
- TRY(gras_trp_socket_new(0,dst));
-
- TRY(gras_trp_plugin_get_by_name("file",&trp));
- (*dst)->plugin=trp;
-
- if (strcmp("-", path)) {
- (*dst)->sd = open(path, O_WRONLY|O_CREAT, S_IRUSR|S_IWUSR|S_IRGRP );
-
- if ( (*dst)->sd < 0) {
- RAISE2(system_error,
- "Cannot create a client socket from file %s: %s",
- path, strerror(errno));
- }
- } else {
- (*dst)->sd = 1; /* stdout */
- }
-
- DEBUG5("sock_client_from_file(%s): sd=%d in=%c out=%c accept=%c",
- path,
- (*dst)->sd,
- (*dst)->incoming?'y':'n',
- (*dst)->outgoing?'y':'n',
- (*dst)->accepting?'y':'n');
- /* register socket */
- errcode = gras_dynar_push(_gras_trp_sockets,dst);
- if (errcode != no_error) {
- free(*dst);
- *dst = NULL;
- return errcode;
- }
-
- return no_error;
-}
-
-/**
- * gras_socket_server_from_file:
- *
- * Create a server socket from a file path.
- *
- * This only possible in RL, and is mainly for debugging.
- */
-gras_error_t
-gras_socket_server_from_file(const char*path,
- /* OUT */ gras_socket_t **dst) {
- gras_error_t errcode;
- gras_trp_plugin_t *trp;
-
- gras_assert0(gras_if_RL(),
- "Cannot use file as socket in the simulator");
-
- TRY(gras_trp_socket_new(1,dst));
-
- TRY(gras_trp_plugin_get_by_name("file",&trp));
- (*dst)->plugin=trp;
-
-
- if (strcmp("-", path)) {
- (*dst)->sd = open(path, O_RDONLY );
-
- if ( (*dst)->sd < 0) {
- RAISE2(system_error,
- "Cannot create a server socket from file %s: %s",
- path, strerror(errno));
- }
- } else {
- (*dst)->sd = 0; /* stdin */
- }
-
- DEBUG4("sd=%d in=%c out=%c accept=%c",
- (*dst)->sd,
- (*dst)->incoming?'y':'n',
- (*dst)->outgoing?'y':'n',
- (*dst)->accepting?'y':'n');
-
- /* register socket */
- errcode = gras_dynar_push(_gras_trp_sockets,dst);
- if (errcode != no_error) {
- free(*dst);
- *dst = NULL;
- return errcode;
- }
-
- return no_error;
-}
-
-void gras_trp_file_close(gras_socket_t *sock){
- gras_trp_file_specific_t *specific;
-
- if (!sock) return; /* close only once */
- specific=sock->plugin->specific;
-
- if (sock->sd == 0) {
- DEBUG0("Do not close stdin");
- } else if (sock->sd == 1) {
- DEBUG0("Do not close stdout");
- } else {
- DEBUG1("close file connection %d", sock->sd);
-
- /* forget about the socket */
- FD_CLR(sock->sd, &(specific->incoming_socks));
-
- /* close the socket */
- if(close(sock->sd) < 0) {
- WARNING2("error while closing file %d: %s",
- sock->sd, strerror(errno));
- }
- }
-}
-
-/**
- * gras_trp_file_chunk_send:
- *
- * Send data on a file pseudo-socket
- */
-gras_error_t
-gras_trp_file_chunk_send(gras_socket_t *sock,
- char *data,
- size_t size) {
-
- gras_assert0(size >= 0, "Cannot send a negative amount of data");
-
- while (size) {
- int status = 0;
-
- DEBUG3("write(%d, %p, %ld);", sock->sd, data, (size_t)size);
- status = write(sock->sd, data, (size_t)size);
-
- if (status == -1) {
- RAISE4(system_error,"write(%d,%p,%d) failed: %s",
- sock->sd, data, (int)size,
- strerror(errno));
- }
-
- if (status) {
- size -= status;
- data += status;
- } else {
- RAISE0(system_error,"file descriptor closed");
- }
- }
-
- return no_error;
-}
-/**
- * gras_trp_file_chunk_recv:
- *
- * Receive data on a file pseudo-socket.
- */
-gras_error_t
-gras_trp_file_chunk_recv(gras_socket_t *sock,
- char *data,
- size_t size) {
-
- /* TCP sockets are in duplex mode, don't check direction */
- gras_assert0(sock, "Cannot recv on an NULL socket");
- gras_assert0(size >= 0, "Cannot receive a negative amount of data");
-
- while (size) {
- int status = 0;
-
- status = read(sock->sd, data, (size_t)size);
- DEBUG3("read(%d, %p, %ld);", sock->sd, data, size);
-
- if (status == -1) {
- RAISE4(system_error,"read(%d,%p,%d) failed: %s",
- sock->sd, data, (int)size,
- strerror(errno));
- }
-
- if (status) {
- size -= status;
- data += status;
- } else {
- RAISE0(system_error,"file descriptor closed");
- }
- }
-
- return no_error;
-}
-
