From f504b1a5e883ac99a6c3f4058a150fb8c2b59c52 Mon Sep 17 00:00:00 2001 From: Michael Jumper Date: Sat, 1 Jul 2017 15:51:15 -0700 Subject: [PATCH] GUACAMOLE-337: Move libguacd functionality into libguac. --- Makefile.am | 2 - configure.ac | 5 - src/guacd/Makefile.am | 2 - src/guacd/connection.c | 1 - src/guacd/daemon.c | 1 - src/guacd/proc-map.c | 1 - src/guacd/proc-map.h | 1 - src/guacd/proc.c | 3 +- src/libguac/Makefile.am | 3 +- src/libguac/guacamole/user.h | 24 +++ .../user.c => libguac/user-handshake.c} | 151 ++++++++++++------ src/libguacd/Makefile.am | 47 ------ src/libguacd/libguacd/user.h | 48 ------ src/libguacd/log.c | 71 -------- src/libguacd/log.h | 42 ----- 15 files changed, 131 insertions(+), 271 deletions(-) rename src/{libguacd/user.c => libguac/user-handshake.c} (69%) delete mode 100644 src/libguacd/Makefile.am delete mode 100644 src/libguacd/libguacd/user.h delete mode 100644 src/libguacd/log.c delete mode 100644 src/libguacd/log.h diff --git a/Makefile.am b/Makefile.am index d67db2a3..3ba1e34e 100644 --- a/Makefile.am +++ b/Makefile.am @@ -22,7 +22,6 @@ ACLOCAL_AMFLAGS = -I m4 # Subprojects DIST_SUBDIRS = \ src/libguac \ - src/libguacd \ src/common \ src/common-ssh \ src/terminal \ @@ -38,7 +37,6 @@ DIST_SUBDIRS = \ SUBDIRS = \ src/libguac \ src/common \ - src/libguacd \ tests if ENABLE_COMMON_SSH diff --git a/configure.ac b/configure.ac index b4cc2d37..08002509 100644 --- a/configure.ac +++ b/configure.ac @@ -123,10 +123,6 @@ AC_SUBST([COMMON_INCLUDE], '-I$(top_srcdir)/src/common') AC_SUBST([PULSE_LTLIB], '$(top_builddir)/src/pulse/libguac_pulse.la') AC_SUBST([PULSE_INCLUDE], '-I$(top_srcdir)/src/pulse') -# Common utility library for guacd implementations -AC_SUBST([LIBGUACD_LTLIB], '$(top_builddir)/src/libguacd/libguacd.la') -AC_SUBST([LIBGUACD_INCLUDE], '-I$(top_srcdir)/src/libguacd') - # Common base SSH client AC_SUBST([COMMON_SSH_LTLIB], '$(top_builddir)/src/common-ssh/libguac_common_ssh.la') AC_SUBST([COMMON_SSH_INCLUDE], '-I$(top_srcdir)/src/common-ssh') @@ -1172,7 +1168,6 @@ AC_CONFIG_FILES([Makefile src/common-ssh/Makefile src/terminal/Makefile src/libguac/Makefile - src/libguacd/Makefile src/guacd/Makefile src/guacenc/Makefile src/pulse/Makefile diff --git a/src/guacd/Makefile.am b/src/guacd/Makefile.am index b9433e8c..14ab5db6 100644 --- a/src/guacd/Makefile.am +++ b/src/guacd/Makefile.am @@ -49,12 +49,10 @@ guacd_SOURCES = \ guacd_CFLAGS = \ -Werror -Wall -pedantic \ @COMMON_INCLUDE@ \ - @LIBGUACD_INCLUDE@ \ @LIBGUAC_INCLUDE@ guacd_LDADD = \ @COMMON_LTLIB@ \ - @LIBGUACD_LTLIB@ \ @LIBGUAC_LTLIB@ guacd_LDFLAGS = \ diff --git a/src/guacd/connection.c b/src/guacd/connection.c index 6c517bfa..ef767acb 100644 --- a/src/guacd/connection.c +++ b/src/guacd/connection.c @@ -22,7 +22,6 @@ #include "connection.h" #include "log.h" #include "move-fd.h" -#include "libguacd/user.h" #include "proc.h" #include "proc-map.h" diff --git a/src/guacd/daemon.c b/src/guacd/daemon.c index 3adf4332..2e80ef38 100644 --- a/src/guacd/daemon.c +++ b/src/guacd/daemon.c @@ -22,7 +22,6 @@ #include "connection.h" #include "conf-args.h" #include "conf-file.h" -#include "libguacd/user.h" #include "log.h" #include "proc-map.h" diff --git a/src/guacd/proc-map.c b/src/guacd/proc-map.c index bbe50b3a..ac87196a 100644 --- a/src/guacd/proc-map.c +++ b/src/guacd/proc-map.c @@ -19,7 +19,6 @@ #include "config.h" #include "common/list.h" -#include "libguacd/user.h" #include "proc.h" #include "proc-map.h" diff --git a/src/guacd/proc-map.h b/src/guacd/proc-map.h index 5d8ce972..a2421885 100644 --- a/src/guacd/proc-map.h +++ b/src/guacd/proc-map.h @@ -23,7 +23,6 @@ #include "config.h" #include "common/list.h" -#include "libguacd/user.h" #include "proc.h" #include diff --git a/src/guacd/proc.c b/src/guacd/proc.c index e5e95866..0a359103 100644 --- a/src/guacd/proc.c +++ b/src/guacd/proc.c @@ -19,7 +19,6 @@ #include "config.h" -#include "libguacd/user.h" #include "log.h" #include "move-fd.h" #include "proc.h" @@ -92,7 +91,7 @@ static void* guacd_user_thread(void* data) { user->owner = params->owner; /* Handle user connection from handshake until disconnect/completion */ - guacd_handle_user(user, GUACD_USEC_TIMEOUT); + guac_user_handle_connection(user, GUACD_USEC_TIMEOUT); /* Stop client and prevent future users if all users are disconnected */ if (client->connected_users == 0) { diff --git a/src/libguac/Makefile.am b/src/libguac/Makefile.am index 0bfa4094..a1f47edc 100644 --- a/src/libguac/Makefile.am +++ b/src/libguac/Makefile.am @@ -91,7 +91,8 @@ libguac_la_SOURCES = \ timestamp.c \ unicode.c \ user.c \ - user-handlers.c + user-handlers.c \ + user-handshake.c # Compile WebP support if available if ENABLE_WEBP diff --git a/src/libguac/guacamole/user.h b/src/libguac/guacamole/user.h index c791c2d4..b445f625 100644 --- a/src/libguac/guacamole/user.h +++ b/src/libguac/guacamole/user.h @@ -492,6 +492,30 @@ guac_user* guac_user_alloc(); */ void guac_user_free(guac_user* user); +/** + * Handles the portion of a user's Guacamole protocol handshake following the + * "select" instruction all subsequent I/O, automatically populating the + * handshake-related properties of the given guac_user and invoking + * guac_user_handle_instruction() for received instructions after the handshake + * has completed. This function blocks until the connection/user is aborted or + * the user disconnects. + * + * @param user + * The user whose handshake and entire Guacamole protocol exchange should + * be handled. The user must already be associated with a guac_socket and + * guac_client, and the guac_client must already be fully initialized. + * + * @param usec_timeout + * The number of microseconds to wait for instructions from the given + * user before closing the connection with an error. + * + * @return + * Zero if the user's Guacamole connection was successfully handled and + * the user has disconnected, or non-zero if an error prevented the user's + * connection from being handled properly. + */ +int guac_user_handle_connection(guac_user* user, int usec_timeout); + /** * Call the appropriate handler defined by the given user for the given * instruction. A comparison is made between the instruction opcode and the diff --git a/src/libguacd/user.c b/src/libguac/user-handshake.c similarity index 69% rename from src/libguacd/user.c rename to src/libguac/user-handshake.c index 04f0f491..b6018888 100644 --- a/src/libguacd/user.c +++ b/src/libguac/user-handshake.c @@ -19,15 +19,12 @@ #include "config.h" -#include "libguacd/user.h" -#include "log.h" - -#include -#include -#include -#include -#include -#include +#include "client.h" +#include "error.h" +#include "parser.h" +#include "protocol.h" +#include "socket.h" +#include "user.h" #include #include @@ -36,7 +33,7 @@ /** * Parameters required by the user input thread. */ -typedef struct guacd_user_input_thread_params { +typedef struct guac_user_input_thread_params { /** * The parser which will be used throughout the user's session. @@ -54,12 +51,72 @@ typedef struct guacd_user_input_thread_params { */ int usec_timeout; -} guacd_user_input_thread_params; +} guac_user_input_thread_params; + +/** + * Prints an error message using the logging facilities of the given user, + * automatically including any information present in guac_error. + * + * @param user + * The guac_user associated with the error that occurred. + * + * @param level + * The level at which to log this message. + * + * @param message + * The message to log. + */ +static void guac_user_log_guac_error(guac_user* user, + guac_client_log_level level, const char* message) { + + if (guac_error != GUAC_STATUS_SUCCESS) { + + /* If error message provided, include in log */ + if (guac_error_message != NULL) + guac_user_log(user, level, "%s: %s", message, + guac_error_message); + + /* Otherwise just log with standard status string */ + else + guac_user_log(user, level, "%s: %s", message, + guac_status_string(guac_error)); + + } + + /* Just log message if no status code */ + else + guac_user_log(user, level, "%s", message); + +} + +/** + * Logs a reasonable explanatory message regarding handshake failure based on + * the current value of guac_error. + * + * @param user + * The guac_user associated with the failed Guacamole protocol handshake. + */ +static void guac_user_log_handshake_failure(guac_user* user) { + + if (guac_error == GUAC_STATUS_CLOSED) + guac_user_log(user, GUAC_LOG_INFO, + "Guacamole connection closed during handshake"); + else if (guac_error == GUAC_STATUS_PROTOCOL_ERROR) + guac_user_log(user, GUAC_LOG_ERROR, + "Guacamole protocol violation. Perhaps the version of " + "guacamole-client is incompatible with this version of " + "libguac?"); + else + guac_user_log(user, GUAC_LOG_WARNING, + "Guacamole handshake failed: %s", + guac_status_string(guac_error)); + +} /** * Copies the given array of mimetypes (strings) into a newly-allocated NULL- * terminated array of strings. Both the array and the strings within the array - * are newly-allocated and must be later freed via guacd_free_mimetypes(). + * are newly-allocated and must be later freed via guac_free_mimetypes(). * * @param mimetypes * The array of mimetypes to copy. @@ -72,7 +129,7 @@ typedef struct guacd_user_input_thread_params { * copies of each of the mimetypes provided in the original mimetypes * array. */ -static char** guacd_copy_mimetypes(char** mimetypes, int count) { +static char** guac_copy_mimetypes(char** mimetypes, int count) { int i; @@ -93,13 +150,13 @@ static char** guacd_copy_mimetypes(char** mimetypes, int count) { /** * Frees the given array of mimetypes, including the space allocated to each * mimetype string within the array. The provided array of mimetypes MUST have - * been allocated with guacd_copy_mimetypes(). + * been allocated with guac_copy_mimetypes(). * * @param mimetypes * The NULL-terminated array of mimetypes to free. This array MUST have - * been previously allocated with guacd_copy_mimetypes(). + * been previously allocated with guac_copy_mimetypes(). */ -static void guacd_free_mimetypes(char** mimetypes) { +static void guac_free_mimetypes(char** mimetypes) { char** current_mimetype = mimetypes; @@ -119,17 +176,17 @@ static void guacd_free_mimetypes(char** mimetypes) { * instructions. * * @param data - * A pointer to a guacd_user_input_thread_params structure describing the + * A pointer to a guac_user_input_thread_params structure describing the * user whose input is being handled and the guac_parser with which to * handle it. * * @return * Always NULL. */ -static void* guacd_user_input_thread(void* data) { +static void* guac_user_input_thread(void* data) { - guacd_user_input_thread_params* params = - (guacd_user_input_thread_params*) data; + guac_user_input_thread_params* params = + (guac_user_input_thread_params*) data; int usec_timeout = params->usec_timeout; guac_user* user = params->user; @@ -148,7 +205,7 @@ static void* guacd_user_input_thread(void* data) { else { if (guac_error != GUAC_STATUS_CLOSED) - guacd_client_log_guac_error(client, GUAC_LOG_WARNING, + guac_user_log_guac_error(user, GUAC_LOG_WARNING, "Guacamole connection failure"); guac_user_stop(user); } @@ -165,7 +222,7 @@ static void* guacd_user_input_thread(void* data) { if (guac_user_handle_instruction(user, parser->opcode, parser->argc, parser->argv) < 0) { /* Log error */ - guacd_client_log_guac_error(client, GUAC_LOG_WARNING, + guac_user_log_guac_error(user, GUAC_LOG_WARNING, "User connection aborted"); /* Log handler details */ @@ -200,10 +257,10 @@ static void* guacd_user_input_thread(void* data) { * Zero if the I/O threads started successfully and user has disconnected, * or non-zero if the I/O threads could not be started. */ -static int guacd_user_start(guac_parser* parser, guac_user* user, +static int guac_user_start(guac_parser* parser, guac_user* user, int usec_timeout) { - guacd_user_input_thread_params params = { + guac_user_input_thread_params params = { .parser = parser, .user = user, .usec_timeout = usec_timeout @@ -211,7 +268,7 @@ static int guacd_user_start(guac_parser* parser, guac_user* user, pthread_t input_thread; - if (pthread_create(&input_thread, NULL, guacd_user_input_thread, (void*) ¶ms)) { + if (pthread_create(&input_thread, NULL, guac_user_input_thread, (void*) ¶ms)) { guac_user_log(user, GUAC_LOG_ERROR, "Unable to start input thread"); guac_user_stop(user); return -1; @@ -229,7 +286,7 @@ static int guacd_user_start(guac_parser* parser, guac_user* user, } -int guacd_handle_user(guac_user* user, int usec_timeout) { +int guac_user_handle_connection(guac_user* user, int usec_timeout) { guac_socket* socket = user->socket; guac_client* client = user->client; @@ -239,8 +296,8 @@ int guacd_handle_user(guac_user* user, int usec_timeout) { || guac_socket_flush(socket)) { /* Log error */ - guacd_client_log_handshake_failure(client); - guacd_client_log_guac_error(client, GUAC_LOG_DEBUG, + guac_user_log_handshake_failure(user); + guac_user_log_guac_error(user, GUAC_LOG_DEBUG, "Error sending \"args\" to new user"); return 1; @@ -252,8 +309,8 @@ int guacd_handle_user(guac_user* user, int usec_timeout) { if (guac_parser_expect(parser, socket, usec_timeout, "size")) { /* Log error */ - guacd_client_log_handshake_failure(client); - guacd_client_log_guac_error(client, GUAC_LOG_DEBUG, + guac_user_log_handshake_failure(user); + guac_user_log_guac_error(user, GUAC_LOG_DEBUG, "Error reading \"size\""); guac_parser_free(parser); @@ -262,7 +319,7 @@ int guacd_handle_user(guac_user* user, int usec_timeout) { /* Validate content of size instruction */ if (parser->argc < 2) { - guac_client_log(client, GUAC_LOG_ERROR, "Received \"size\" " + guac_user_log(user, GUAC_LOG_ERROR, "Received \"size\" " "instruction lacked required arguments."); guac_parser_free(parser); return 1; @@ -272,7 +329,7 @@ int guacd_handle_user(guac_user* user, int usec_timeout) { user->info.optimal_width = atoi(parser->argv[0]); user->info.optimal_height = atoi(parser->argv[1]); - /* If DPI given, set the client resolution */ + /* If DPI given, set the user resolution */ if (parser->argc >= 3) user->info.optimal_resolution = atoi(parser->argv[2]); @@ -284,8 +341,8 @@ int guacd_handle_user(guac_user* user, int usec_timeout) { if (guac_parser_expect(parser, socket, usec_timeout, "audio")) { /* Log error */ - guacd_client_log_handshake_failure(client); - guacd_client_log_guac_error(client, GUAC_LOG_DEBUG, + guac_user_log_handshake_failure(user); + guac_user_log_guac_error(user, GUAC_LOG_DEBUG, "Error reading \"audio\""); guac_parser_free(parser); @@ -293,15 +350,15 @@ int guacd_handle_user(guac_user* user, int usec_timeout) { } /* Store audio mimetypes */ - char** audio_mimetypes = guacd_copy_mimetypes(parser->argv, parser->argc); + char** audio_mimetypes = guac_copy_mimetypes(parser->argv, parser->argc); user->info.audio_mimetypes = (const char**) audio_mimetypes; /* Get supported video formats */ if (guac_parser_expect(parser, socket, usec_timeout, "video")) { /* Log error */ - guacd_client_log_handshake_failure(client); - guacd_client_log_guac_error(client, GUAC_LOG_DEBUG, + guac_user_log_handshake_failure(user); + guac_user_log_guac_error(user, GUAC_LOG_DEBUG, "Error reading \"video\""); guac_parser_free(parser); @@ -309,15 +366,15 @@ int guacd_handle_user(guac_user* user, int usec_timeout) { } /* Store video mimetypes */ - char** video_mimetypes = guacd_copy_mimetypes(parser->argv, parser->argc); + char** video_mimetypes = guac_copy_mimetypes(parser->argv, parser->argc); user->info.video_mimetypes = (const char**) video_mimetypes; /* Get supported image formats */ if (guac_parser_expect(parser, socket, usec_timeout, "image")) { /* Log error */ - guacd_client_log_handshake_failure(client); - guacd_client_log_guac_error(client, GUAC_LOG_DEBUG, + guac_user_log_handshake_failure(user); + guac_user_log_guac_error(user, GUAC_LOG_DEBUG, "Error reading \"image\""); guac_parser_free(parser); @@ -325,15 +382,15 @@ int guacd_handle_user(guac_user* user, int usec_timeout) { } /* Store image mimetypes */ - char** image_mimetypes = guacd_copy_mimetypes(parser->argv, parser->argc); + char** image_mimetypes = guac_copy_mimetypes(parser->argv, parser->argc); user->info.image_mimetypes = (const char**) image_mimetypes; /* Get args from connect instruction */ if (guac_parser_expect(parser, socket, usec_timeout, "connect")) { /* Log error */ - guacd_client_log_handshake_failure(client); - guacd_client_log_guac_error(client, GUAC_LOG_DEBUG, + guac_user_log_handshake_failure(user); + guac_user_log_guac_error(user, GUAC_LOG_DEBUG, "Error reading \"connect\""); guac_parser_free(parser); @@ -357,7 +414,7 @@ int guacd_handle_user(guac_user* user, int usec_timeout) { client->connection_id, client->connected_users); /* Handle user I/O, wait for connection to terminate */ - guacd_user_start(parser, user, usec_timeout); + guac_user_start(parser, user, usec_timeout); /* Remove/free user */ guac_client_remove_user(client, user); @@ -367,9 +424,9 @@ int guacd_handle_user(guac_user* user, int usec_timeout) { } /* Free mimetype lists */ - guacd_free_mimetypes(audio_mimetypes); - guacd_free_mimetypes(video_mimetypes); - guacd_free_mimetypes(image_mimetypes); + guac_free_mimetypes(audio_mimetypes); + guac_free_mimetypes(video_mimetypes); + guac_free_mimetypes(image_mimetypes); guac_parser_free(parser); diff --git a/src/libguacd/Makefile.am b/src/libguacd/Makefile.am deleted file mode 100644 index c0373f1c..00000000 --- a/src/libguacd/Makefile.am +++ /dev/null @@ -1,47 +0,0 @@ -# -# Licensed to the Apache Software Foundation (ASF) under one -# or more contributor license agreements. See the NOTICE file -# distributed with this work for additional information -# regarding copyright ownership. The ASF licenses this file -# to you under the Apache License, Version 2.0 (the -# "License"); you may not use this file except in compliance -# with the License. You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, -# software distributed under the License is distributed on an -# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY -# KIND, either express or implied. See the License for the -# specific language governing permissions and limitations -# under the License. -# - -AUTOMAKE_OPTIONS = foreign - -lib_LTLIBRARIES = libguacd.la - -libguacdincdir = $(includedir)/libguacd - -libguacdinc_HEADERS = \ - libguacd/user.h - -noinst_HEADERS = \ - log.h - -libguacd_la_SOURCES = \ - log.c \ - user.c - -libguacd_la_CFLAGS = \ - -Werror -Wall -pedantic \ - @LIBGUAC_INCLUDE@ - -libguacd_la_LIBADD = \ - @LIBGUAC_LTLIB@ - -libguacd_la_LDFLAGS = \ - -version-info 0:0:0 \ - -no-undefined \ - @PTHREAD_LIBS@ - diff --git a/src/libguacd/libguacd/user.h b/src/libguacd/libguacd/user.h deleted file mode 100644 index 4404a6cc..00000000 --- a/src/libguacd/libguacd/user.h +++ /dev/null @@ -1,48 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ - - -#ifndef LIBGUACD_USER_H -#define LIBGUACD_USER_H - -#include -#include -#include - -/** - * Handles the initial handshake of a user and all subsequent I/O. This - * function blocks until the user disconnects. - * - * @param user - * The user whose handshake and entire Guacamole protocol exchange should - * be handled. - * - * @param usec_timeout - * The number of microseconds to wait for instructions from the given - * user before closing the connection with an error. - * - * @return - * Zero if the user's Guacamole connection was successfully handled and - * the user has disconnected, or non-zero if an error prevented the user's - * connection from being handled properly. - */ -int guacd_handle_user(guac_user* user, int usec_timeout); - -#endif - diff --git a/src/libguacd/log.c b/src/libguacd/log.c deleted file mode 100644 index 180cc977..00000000 --- a/src/libguacd/log.c +++ /dev/null @@ -1,71 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ - -#include "config.h" -#include "log.h" - -#include -#include - -#include -#include -#include - -void guacd_client_log_guac_error(guac_client* client, - guac_client_log_level level, const char* message) { - - if (guac_error != GUAC_STATUS_SUCCESS) { - - /* If error message provided, include in log */ - if (guac_error_message != NULL) - guac_client_log(client, level, "%s: %s", - message, - guac_error_message); - - /* Otherwise just log with standard status string */ - else - guac_client_log(client, level, "%s: %s", - message, - guac_status_string(guac_error)); - - } - - /* Just log message if no status code */ - else - guac_client_log(client, level, "%s", message); - -} - -void guacd_client_log_handshake_failure(guac_client* client) { - - if (guac_error == GUAC_STATUS_CLOSED) - guac_client_log(client, GUAC_LOG_INFO, - "Guacamole connection closed during handshake"); - else if (guac_error == GUAC_STATUS_PROTOCOL_ERROR) - guac_client_log(client, GUAC_LOG_ERROR, - "Guacamole protocol violation. Perhaps the version of " - "guacamole-client is incompatible with this version of " - "guacd?"); - else - guac_client_log(client, GUAC_LOG_WARNING, - "Guacamole handshake failed: %s", - guac_status_string(guac_error)); - -} - diff --git a/src/libguacd/log.h b/src/libguacd/log.h deleted file mode 100644 index 76509e32..00000000 --- a/src/libguacd/log.h +++ /dev/null @@ -1,42 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ - -#ifndef LIBGUACD_LOG_H -#define LIBGUACD_LOG_H - -#include "config.h" - -#include - -/** - * Prints an error message using the logging facilities of the given client, - * automatically including any information present in guac_error. This function - * accepts parameters identically to printf. - */ -void guacd_client_log_guac_error(guac_client* client, - guac_client_log_level level, const char* message); - -/** - * Logs a reasonable explanatory message regarding handshake failure based on - * the current value of guac_error. - */ -void guacd_client_log_handshake_failure(guac_client* client); - -#endif -