Merge branch 'unstable' of ssh://guacamole.git.sourceforge.net/gitroot/guacamole/libguac into unstable
This commit is contained in:
commit
903104af20
@ -4,7 +4,7 @@ ACLOCAL_AMFLAGS = -I m4
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AM_CFLAGS = -Werror -Wall -Iinclude
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libguacincdir = $(includedir)/guacamole
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libguacinc_HEADERS = include/client.h include/guacio.h include/protocol.h
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libguacinc_HEADERS = include/client.h include/guacio.h include/protocol.h include/log.h
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lib_LTLIBRARIES = libguac.la
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@ -12,9 +12,10 @@ AC_PROG_LIBTOOL
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# Checks for libraries.
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AC_CHECK_LIB([dl], [dlopen],, AC_MSG_ERROR("libdl is required for loading client plugins"))
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AC_CHECK_LIB([png], [png_write_png],, AC_MSG_ERROR("libpng is required for writing png messages"))
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AC_CHECK_LIB([wsock32], [main])
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# Checks for header files.
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AC_CHECK_HEADERS([fcntl.h stdlib.h string.h sys/socket.h sys/time.h syslog.h unistd.h])
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AC_CHECK_HEADERS([fcntl.h stdlib.h string.h sys/socket.h sys/time.h syslog.h unistd.h pngstruct.h])
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# Checks for typedefs, structures, and compiler characteristics.
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AC_TYPE_SIZE_T
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@ -79,13 +79,6 @@ typedef struct GUACIO {
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*/
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char* instructionbuf;
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/**
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* The transfer limit, in kilobytes per second. If 0, there is no
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* transfer limit. If non-zero, sleep calls are used at the end of
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* a write to ensure output never exceeds the specified limit.
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*/
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unsigned int transfer_limit; /* KB/sec */
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} GUACIO;
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/**
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38
libguac/include/log.h
Normal file
38
libguac/include/log.h
Normal file
@ -0,0 +1,38 @@
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/*
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* Guacamole - Clientless Remote Desktop
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* Copyright (C) 2010 Michael Jumper
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _LOG_H
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#define _LOG_H
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#ifdef HAVE_SYSLOG_H
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/* Logging for UNIX */
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#include <syslog.h>
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#define GUAC_LOG_ERROR(...) syslog(LOG_ERR, __VA_ARGS__)
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#define GUAC_LOG_INFO(...) syslog(LOG_INFO, __VA_ARGS__)
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#else
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/* Logging for W32 */
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#define GUAC_LOG_ERROR(...) fprintf(stderr, __VA_ARGS__); fprintf(stderr, "\n")
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#define GUAC_LOG_INFO(...) fprintf(stderr, __VA_ARGS__); fprintf(stderr, "\n")
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#endif
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#endif
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@ -20,11 +20,9 @@
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <syslog.h>
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#include <dlfcn.h>
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#include "log.h"
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#include "guacio.h"
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#include "protocol.h"
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#include "client.h"
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@ -100,7 +98,7 @@ guac_client* guac_get_client(int client_fd) {
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int result = guac_read_instruction(io, &instruction);
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if (result < 0) {
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syslog(LOG_ERR, "Error reading instruction while waiting for select");
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GUAC_LOG_ERROR("Error reading instruction while waiting for select");
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guac_close(io);
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return NULL;
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}
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@ -122,7 +120,7 @@ guac_client* guac_get_client(int client_fd) {
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/* Load client plugin */
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client->client_plugin_handle = dlopen(protocol_lib, RTLD_LAZY);
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if (!(client->client_plugin_handle)) {
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syslog(LOG_ERR, "Could not open client plugin for protocol \"%s\": %s\n", protocol, dlerror());
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GUAC_LOG_ERROR("Could not open client plugin for protocol \"%s\": %s\n", protocol, dlerror());
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guac_send_error(io, "Could not load server-side client plugin.");
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guac_flush(io);
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guac_close(io);
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@ -136,7 +134,7 @@ guac_client* guac_get_client(int client_fd) {
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alias.obj = dlsym(client->client_plugin_handle, "guac_client_init");
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if ((error = dlerror()) != NULL) {
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syslog(LOG_ERR, "Could not get guac_client_init in plugin: %s\n", error);
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GUAC_LOG_ERROR("Could not get guac_client_init in plugin: %s\n", error);
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guac_send_error(io, "Invalid server-side client plugin.");
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guac_flush(io);
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guac_close(io);
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@ -148,7 +146,7 @@ guac_client* guac_get_client(int client_fd) {
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client_args = (const char**) dlsym(client->client_plugin_handle, "GUAC_CLIENT_ARGS");
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if ((error = dlerror()) != NULL) {
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syslog(LOG_ERR, "Could not get GUAC_CLIENT_ in plugin: %s\n", error);
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GUAC_LOG_ERROR("Could not get GUAC_CLIENT_ in plugin: %s\n", error);
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guac_send_error(io, "Invalid server-side client plugin.");
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guac_flush(io);
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guac_close(io);
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@ -175,7 +173,7 @@ guac_client* guac_get_client(int client_fd) {
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int result = guac_read_instruction(io, &instruction);
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if (result < 0) {
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syslog(LOG_ERR, "Error reading instruction while waiting for connect");
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GUAC_LOG_ERROR("Error reading instruction while waiting for connect");
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guac_close(io);
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return NULL;
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}
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@ -213,14 +211,14 @@ void guac_free_client(guac_client* client) {
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if (client->free_handler) {
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if (client->free_handler(client))
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syslog(LOG_ERR, "Error calling client free handler");
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GUAC_LOG_ERROR("Error calling client free handler");
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}
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guac_close(client->io);
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/* Unload client plugin */
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if (dlclose(client->client_plugin_handle)) {
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syslog(LOG_ERR, "Could not close client plugin while unloading client: %s", dlerror());
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GUAC_LOG_ERROR("Could not close client plugin while unloading client: %s", dlerror());
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}
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free(client);
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@ -241,7 +239,7 @@ void guac_start_client(guac_client* client) {
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int retval = client->handle_messages(client);
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if (retval) {
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syslog(LOG_ERR, "Error handling server messages");
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GUAC_LOG_ERROR("Error handling server messages");
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return;
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}
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@ -270,7 +268,7 @@ void guac_start_client(guac_client* client) {
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)
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) {
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syslog(LOG_ERR, "Error handling mouse instruction");
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GUAC_LOG_ERROR("Error handling mouse instruction");
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guac_free_instruction_data(&instruction);
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return;
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@ -287,7 +285,7 @@ void guac_start_client(guac_client* client) {
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)
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) {
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syslog(LOG_ERR, "Error handling key instruction");
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GUAC_LOG_ERROR("Error handling key instruction");
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guac_free_instruction_data(&instruction);
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return;
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@ -303,7 +301,7 @@ void guac_start_client(guac_client* client) {
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)
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) {
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syslog(LOG_ERR, "Error handling clipboard instruction");
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GUAC_LOG_ERROR("Error handling clipboard instruction");
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guac_free_instruction_data(&instruction);
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return;
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@ -311,7 +309,7 @@ void guac_start_client(guac_client* client) {
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}
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else if (strcmp(instruction.opcode, "disconnect") == 0) {
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syslog(LOG_INFO, "Client requested disconnect");
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GUAC_LOG_INFO("Client requested disconnect");
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guac_free_instruction_data(&instruction);
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return;
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}
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@ -321,13 +319,13 @@ void guac_start_client(guac_client* client) {
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} while ((retval = guac_read_instruction(io, &instruction)) > 0);
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if (retval < 0) {
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syslog(LOG_ERR, "Error reading instruction from stream");
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GUAC_LOG_ERROR("Error reading instruction from stream");
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return;
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}
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}
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if (retval < 0) {
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syslog(LOG_ERR, "Error or end of stream");
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GUAC_LOG_ERROR("Error or end of stream");
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return; /* EOF or error */
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}
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@ -335,7 +333,7 @@ void guac_start_client(guac_client* client) {
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}
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else if (wait_result < 0) {
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syslog(LOG_ERR, "Error waiting for next instruction");
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GUAC_LOG_ERROR("Error waiting for next instruction");
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return;
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}
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@ -23,8 +23,13 @@
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#include <fcntl.h>
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#include <stdio.h>
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#include <time.h>
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#ifdef __MINGW32__
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#include <winsock2.h>
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#else
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#include <sys/select.h>
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#endif
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#include <time.h>
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#include <sys/time.h>
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#include "guacio.h"
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@ -48,9 +53,6 @@ GUACIO* guac_open(int fd) {
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io->instructionbuf = malloc(io->instructionbuf_size);
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io->instructionbuf_used_length = 0;
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/* Set limit */
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io->transfer_limit = 0;
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return io;
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}
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@ -64,41 +66,15 @@ void guac_close(GUACIO* io) {
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/* Write bytes, limit rate */
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ssize_t __guac_write(GUACIO* io, const char* buf, int count) {
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struct timeval start, end;
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int retval;
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/* Write and time how long the write takes (microseconds) */
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gettimeofday(&start, NULL);
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#ifdef __MINGW32__
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/* MINGW32 WINSOCK only works with send() */
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retval = send(io->fd, buf, count, 0);
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#else
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/* Use write() for all other platforms */
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retval = write(io->fd, buf, count);
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gettimeofday(&end, NULL);
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if (retval < 0)
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return retval;
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if (io->transfer_limit > 0) {
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suseconds_t elapsed;
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suseconds_t required_usecs;
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/* Get elapsed time */
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elapsed = (end.tv_sec - start.tv_sec) * 1000000 + end.tv_usec - start.tv_usec;
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/* Calculate how much time we must sleep */
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required_usecs = retval * 1000 / io->transfer_limit - elapsed; /* useconds at transfer_limit KB/s*/
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/* Sleep as necessary */
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if (required_usecs > 0) {
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struct timespec required_sleep;
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required_sleep.tv_sec = required_usecs / 1000000;
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required_sleep.tv_nsec = (required_usecs % 1000000) * 1000;
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nanosleep(&required_sleep, NULL);
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}
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}
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#endif
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return retval;
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}
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@ -136,19 +112,11 @@ ssize_t guac_write_string(GUACIO* io, const char* str) {
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/* Flush when necessary, return on error */
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if (io->written > 8188 /* sizeof(out_buf) - 4 */) {
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struct timeval start, end;
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suseconds_t elapsed;
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gettimeofday(&start, NULL);
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retval = __guac_write(io, out_buf, io->written);
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gettimeofday(&end, NULL);
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if (retval < 0)
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return retval;
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/* Get elapsed time */
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elapsed = (end.tv_sec - start.tv_sec) * 1000000 + end.tv_usec - start.tv_usec;
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io->written = 0;
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}
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@ -23,8 +23,17 @@
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#include <errno.h>
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#include <png.h>
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#ifdef HAVE_PNGSTRUCT_H
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#include <pngstruct.h>
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#endif
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#include <sys/types.h>
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#ifdef __MINGW32__
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#include <winsock2.h>
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#else
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#include <sys/socket.h>
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#endif
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#include "guacio.h"
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#include "protocol.h"
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