/* * Server-side console management * * Copyright (C) 1998 Alexandre Julliard * 2001 Eric Pouech * * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include "wine/port.h" #include <assert.h> #include <string.h> #include <stdio.h> #include <unistd.h> #include <signal.h> #include "ntstatus.h" #define WIN32_NO_STATUS #include "handle.h" #include "process.h" #include "request.h" #include "unicode.h" #include "wincon.h" #include "winternl.h" /* specific access rights (FIXME: should use finer-grained access rights) */ #define CONSOLE_READ 0x01 #define CONSOLE_WRITE 0x02 struct screen_buffer; struct console_input_events; struct console_input { struct object obj; /* object header */ int num_proc; /* number of processes attached to this console */ struct thread *renderer; /* console renderer thread */ int mode; /* input mode */ struct screen_buffer *active; /* active screen buffer */ int recnum; /* number of input records */ INPUT_RECORD *records; /* input records */ struct console_input_events *evt; /* synchronization event with renderer */ WCHAR *title; /* console title */ WCHAR **history; /* lines history */ int history_size; /* number of entries in history array */ int history_index; /* number of used entries in history array */ int history_mode; /* mode of history (non zero means remove doubled strings */ int edition_mode; /* index to edition mode flavors */ int input_cp; /* console input codepage */ int output_cp; /* console output codepage */ user_handle_t win; /* window handle if backend supports it */ struct event *event; /* event to wait on for input queue */ }; static unsigned int console_map_access( struct object *obj, unsigned int access ); static void console_input_dump( struct object *obj, int verbose ); static void console_input_destroy( struct object *obj ); static const struct object_ops console_input_ops = { sizeof(struct console_input), /* size */ console_input_dump, /* dump */ no_get_type, /* get_type */ no_add_queue, /* add_queue */ NULL, /* remove_queue */ NULL, /* signaled */ no_satisfied, /* satisfied */ no_signal, /* signal */ no_get_fd, /* get_fd */ console_map_access, /* map_access */ default_get_sd, /* get_sd */ default_set_sd, /* set_sd */ no_lookup_name, /* lookup_name */ no_open_file, /* open_file */ no_close_handle, /* close_handle */ console_input_destroy /* destroy */ }; static void console_input_events_dump( struct object *obj, int verbose ); static void console_input_events_destroy( struct object *obj ); static int console_input_events_signaled( struct object *obj, struct thread *thread ); struct console_input_events { struct object obj; /* object header */ int num_alloc; /* number of allocated events */ int num_used; /* number of actually used events */ struct console_renderer_event* events; }; static const struct object_ops console_input_events_ops = { sizeof(struct console_input_events), /* size */ console_input_events_dump, /* dump */ no_get_type, /* get_type */ add_queue, /* add_queue */ remove_queue, /* remove_queue */ console_input_events_signaled, /* signaled */ no_satisfied, /* satisfied */ no_signal, /* signal */ no_get_fd, /* get_fd */ console_map_access, /* map_access */ default_get_sd, /* get_sd */ default_set_sd, /* set_sd */ no_lookup_name, /* lookup_name */ no_open_file, /* open_file */ no_close_handle, /* close_handle */ console_input_events_destroy /* destroy */ }; struct screen_buffer { struct object obj; /* object header */ struct list entry; /* entry in list of all screen buffers */ struct console_input *input; /* associated console input */ int mode; /* output mode */ int cursor_size; /* size of cursor (percentage filled) */ int cursor_visible;/* cursor visibility flag */ int cursor_x; /* position of cursor */ int cursor_y; /* position of cursor */ int width; /* size (w-h) of the screen buffer */ int height; int max_width; /* size (w-h) of the window given font size */ int max_height; char_info_t *data; /* the data for each cell - a width x height matrix */ unsigned short attr; /* default attribute for screen buffer */ rectangle_t win; /* current visible window on the screen buffer * * as seen in wineconsole */ }; static void screen_buffer_dump( struct object *obj, int verbose ); static void screen_buffer_destroy( struct object *obj ); static const struct object_ops screen_buffer_ops = { sizeof(struct screen_buffer), /* size */ screen_buffer_dump, /* dump */ no_get_type, /* get_type */ no_add_queue, /* add_queue */ NULL, /* remove_queue */ NULL, /* signaled */ NULL, /* satisfied */ no_signal, /* signal */ no_get_fd, /* get_fd */ console_map_access, /* map_access */ default_get_sd, /* get_sd */ default_set_sd, /* set_sd */ no_lookup_name, /* lookup_name */ no_open_file, /* open_file */ no_close_handle, /* close_handle */ screen_buffer_destroy /* destroy */ }; static struct list screen_buffer_list = LIST_INIT(screen_buffer_list); static const char_info_t empty_char_info = { ' ', 0x000f }; /* white on black space */ /* access mapping for all console objects */ static unsigned int console_map_access( struct object *obj, unsigned int access ) { if (access & GENERIC_READ) access |= SYNCHRONIZE | STANDARD_RIGHTS_READ | CONSOLE_READ; if (access & GENERIC_WRITE) access |= SYNCHRONIZE | STANDARD_RIGHTS_WRITE | CONSOLE_WRITE; if (access & GENERIC_EXECUTE) access |= SYNCHRONIZE | STANDARD_RIGHTS_EXECUTE; if (access & GENERIC_ALL) access |= STANDARD_RIGHTS_ALL | CONSOLE_READ | CONSOLE_WRITE; return access & ~(GENERIC_READ | GENERIC_WRITE | GENERIC_EXECUTE | GENERIC_ALL); } /* dumps the renderer events of a console */ static void console_input_events_dump( struct object *obj, int verbose ) { struct console_input_events *evts = (struct console_input_events *)obj; assert( obj->ops == &console_input_events_ops ); fprintf( stderr, "Console input events: %d/%d events\n", evts->num_used, evts->num_alloc ); } /* destroys the renderer events of a console */ static void console_input_events_destroy( struct object *obj ) { struct console_input_events *evts = (struct console_input_events *)obj; assert( obj->ops == &console_input_events_ops ); free( evts->events ); } /* the renderer events list is signaled when it's not empty */ static int console_input_events_signaled( struct object *obj, struct thread *thread ) { struct console_input_events *evts = (struct console_input_events *)obj; assert( obj->ops == &console_input_events_ops ); return (evts->num_used != 0); } /* add an event to the console's renderer events list */ static void console_input_events_append( struct console_input_events* evts, struct console_renderer_event* evt) { int collapsed = FALSE; /* to be done even when evt has been generated by the rendere ? */ /* try to collapse evt into current queue's events */ if (evts->num_used) { struct console_renderer_event* last = &evts->events[evts->num_used - 1]; if (last->event == CONSOLE_RENDERER_UPDATE_EVENT && evt->event == CONSOLE_RENDERER_UPDATE_EVENT) { /* if two update events overlap, collapse them into a single one */ if (last->u.update.bottom + 1 >= evt->u.update.top && evt->u.update.bottom + 1 >= last->u.update.top) { last->u.update.top = min(last->u.update.top, evt->u.update.top); last->u.update.bottom = max(last->u.update.bottom, evt->u.update.bottom); collapsed = TRUE; } } } if (!collapsed) { if (evts->num_used == evts->num_alloc) { evts->num_alloc += 16; evts->events = realloc( evts->events, evts->num_alloc * sizeof(*evt) ); assert(evts->events); } evts->events[evts->num_used++] = *evt; } wake_up( &evts->obj, 0 ); } /* retrieves events from the console's renderer events list */ static void console_input_events_get( struct console_input_events* evts ) { data_size_t num = get_reply_max_size() / sizeof(evts->events[0]); if (num > evts->num_used) num = evts->num_used; set_reply_data( evts->events, num * sizeof(evts->events[0]) ); if (num < evts->num_used) { memmove( &evts->events[0], &evts->events[num], (evts->num_used - num) * sizeof(evts->events[0]) ); } evts->num_used -= num; } static struct console_input_events *create_console_input_events(void) { struct console_input_events* evt; if (!(evt = alloc_object( &console_input_events_ops ))) return NULL; evt->num_alloc = evt->num_used = 0; evt->events = NULL; return evt; } static struct object *create_console_input( struct thread* renderer ) { struct console_input *console_input; if (!(console_input = alloc_object( &console_input_ops ))) return NULL; console_input->renderer = renderer; console_input->mode = ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT | ENABLE_MOUSE_INPUT; console_input->num_proc = 0; console_input->active = NULL; console_input->recnum = 0; console_input->records = NULL; console_input->evt = create_console_input_events(); console_input->title = NULL; console_input->history_size = 50; console_input->history = calloc( console_input->history_size, sizeof(WCHAR*) ); console_input->history_index = 0; console_input->history_mode = 0; console_input->edition_mode = 0; console_input->input_cp = 0; console_input->output_cp = 0; console_input->win = 0; console_input->event = create_event( NULL, NULL, 0, 1, 0, NULL ); if (!console_input->history || !console_input->evt) { release_object( console_input ); return NULL; } return &console_input->obj; } static void generate_sb_initial_events( struct console_input *console_input ) { struct screen_buffer *screen_buffer = console_input->active; struct console_renderer_event evt; evt.event = CONSOLE_RENDERER_ACTIVE_SB_EVENT; memset(&evt.u, 0, sizeof(evt.u)); console_input_events_append( console_input->evt, &evt ); evt.event = CONSOLE_RENDERER_SB_RESIZE_EVENT; evt.u.resize.width = screen_buffer->width; evt.u.resize.height = screen_buffer->height; console_input_events_append( console_input->evt, &evt ); evt.event = CONSOLE_RENDERER_DISPLAY_EVENT; evt.u.display.left = screen_buffer->win.left; evt.u.display.top = screen_buffer->win.top; evt.u.display.width = screen_buffer->win.right - screen_buffer->win.left + 1; evt.u.display.height = screen_buffer->win.bottom - screen_buffer->win.top + 1; console_input_events_append( console_input->evt, &evt ); evt.event = CONSOLE_RENDERER_UPDATE_EVENT; evt.u.update.top = 0; evt.u.update.bottom = screen_buffer->height - 1; console_input_events_append( console_input->evt, &evt ); evt.event = CONSOLE_RENDERER_CURSOR_GEOM_EVENT; evt.u.cursor_geom.size = screen_buffer->cursor_size; evt.u.cursor_geom.visible = screen_buffer->cursor_visible; console_input_events_append( console_input->evt, &evt ); evt.event = CONSOLE_RENDERER_CURSOR_POS_EVENT; evt.u.cursor_pos.x = screen_buffer->cursor_x; evt.u.cursor_pos.y = screen_buffer->cursor_y; console_input_events_append( console_input->evt, &evt ); } static struct screen_buffer *create_console_output( struct console_input *console_input ) { struct screen_buffer *screen_buffer; int i; if (!(screen_buffer = alloc_object( &screen_buffer_ops ))) return NULL; screen_buffer->mode = ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT; screen_buffer->input = console_input; screen_buffer->cursor_size = 100; screen_buffer->cursor_visible = 1; screen_buffer->width = 80; screen_buffer->height = 150; screen_buffer->max_width = 80; screen_buffer->max_height = 25; screen_buffer->cursor_x = 0; screen_buffer->cursor_y = 0; screen_buffer->attr = 0x0F; screen_buffer->win.left = 0; screen_buffer->win.right = screen_buffer->max_width - 1; screen_buffer->win.top = 0; screen_buffer->win.bottom = screen_buffer->max_height - 1; list_add_head( &screen_buffer_list, &screen_buffer->entry ); if (!(screen_buffer->data = malloc( screen_buffer->width * screen_buffer->height * sizeof(*screen_buffer->data) ))) { release_object( screen_buffer ); return NULL; } /* clear the first row */ for (i = 0; i < screen_buffer->width; i++) screen_buffer->data[i] = empty_char_info; /* and copy it to all other rows */ for (i = 1; i < screen_buffer->height; i++) memcpy( &screen_buffer->data[i * screen_buffer->width], screen_buffer->data, screen_buffer->width * sizeof(char_info_t) ); if (!console_input->active) { console_input->active = (struct screen_buffer*)grab_object( screen_buffer ); generate_sb_initial_events( console_input ); } return screen_buffer; } /* free the console for this process */ int free_console( struct process *process ) { struct console_input* console = process->console; if (!console || !console->renderer) return 0; process->console = NULL; if (--console->num_proc == 0) { /* all processes have terminated... tell the renderer to terminate too */ struct console_renderer_event evt; evt.event = CONSOLE_RENDERER_EXIT_EVENT; memset(&evt.u, 0, sizeof(evt.u)); console_input_events_append( console->evt, &evt ); } release_object( console ); return 1; } /* let process inherit the console from parent... this handle two cases : * 1/ generic console inheritance * 2/ parent is a renderer which launches process, and process should attach to the console * renderered by parent */ void inherit_console(struct thread *parent_thread, struct process *process, obj_handle_t hconin) { int done = 0; struct process* parent = parent_thread->process; /* if parent is a renderer, then attach current process to its console * a bit hacky.... */ if (hconin) { struct console_input* console; /* FIXME: should we check some access rights ? */ if ((console = (struct console_input*)get_handle_obj( parent, hconin, 0, &console_input_ops ))) { if (console->renderer == parent_thread) { process->console = (struct console_input*)grab_object( console ); process->console->num_proc++; done = 1; } release_object( console ); } else clear_error(); /* ignore error */ } /* otherwise, if parent has a console, attach child to this console */ if (!done && parent->console) { assert(parent->console->renderer); process->console = (struct console_input*)grab_object( parent->console ); process->console->num_proc++; } } struct thread *console_get_renderer( struct console_input *console ) { return console->renderer; } static struct console_input* console_input_get( obj_handle_t handle, unsigned access ) { struct console_input* console = NULL; if (handle) console = (struct console_input *)get_handle_obj( current->process, handle, access, &console_input_ops ); else if (current->process->console) { assert( current->process->console->renderer ); console = (struct console_input *)grab_object( current->process->console ); } if (!console && !get_error()) set_error(STATUS_INVALID_PARAMETER); return console; } struct console_signal_info { struct console_input *console; process_id_t group; int signal; }; static int propagate_console_signal_cb(struct process *process, void *user) { struct console_signal_info* csi = (struct console_signal_info*)user; if (process->console == csi->console && process->running_threads && (!csi->group || process->group_id == csi->group)) { /* find a suitable thread to signal */ struct thread *thread; LIST_FOR_EACH_ENTRY( thread, &process->thread_list, struct thread, proc_entry ) { if (send_thread_signal( thread, csi->signal )) break; } } return FALSE; } static void propagate_console_signal( struct console_input *console, int sig, process_id_t group_id ) { struct console_signal_info csi; if (!console) { set_error( STATUS_INVALID_PARAMETER ); return; } /* FIXME: should support the other events (like CTRL_BREAK) */ if (sig != CTRL_C_EVENT) { set_error( STATUS_NOT_IMPLEMENTED ); return; } csi.console = console; csi.signal = SIGINT; csi.group = group_id; enum_processes(propagate_console_signal_cb, &csi); } static int get_console_mode( obj_handle_t handle ) { struct object *obj; int ret = 0; if ((obj = get_handle_obj( current->process, handle, CONSOLE_READ, NULL ))) { if (obj->ops == &console_input_ops) ret = ((struct console_input *)obj)->mode; else if (obj->ops == &screen_buffer_ops) ret = ((struct screen_buffer *)obj)->mode; else set_error( STATUS_OBJECT_TYPE_MISMATCH ); release_object( obj ); } return ret; } /* changes the mode of either a console input or a screen buffer */ static int set_console_mode( obj_handle_t handle, int mode ) { struct object *obj; int ret = 0; if (!(obj = get_handle_obj( current->process, handle, CONSOLE_WRITE, NULL ))) return 0; if (obj->ops == &console_input_ops) { /* FIXME: if we remove the edit mode bits, we need (???) to clean up the history */ ((struct console_input *)obj)->mode = mode; ret = 1; } else if (obj->ops == &screen_buffer_ops) { ((struct screen_buffer *)obj)->mode = mode; ret = 1; } else set_error( STATUS_OBJECT_TYPE_MISMATCH ); release_object( obj ); return ret; } /* add input events to a console input queue */ static int write_console_input( struct console_input* console, int count, const INPUT_RECORD *records ) { INPUT_RECORD *new_rec; if (!count) return 0; if (!(new_rec = realloc( console->records, (console->recnum + count) * sizeof(INPUT_RECORD) ))) { set_error( STATUS_NO_MEMORY ); release_object( console ); return -1; } console->records = new_rec; memcpy( new_rec + console->recnum, records, count * sizeof(INPUT_RECORD) ); if (console->mode & ENABLE_PROCESSED_INPUT) { int i = 0; while (i < count) { if (records[i].EventType == KEY_EVENT && records[i].Event.KeyEvent.uChar.UnicodeChar == 'C' - 64 && !(records[i].Event.KeyEvent.dwControlKeyState & ENHANCED_KEY)) { if (i != count - 1) memcpy( &console->records[console->recnum + i], &console->records[console->recnum + i + 1], (count - i - 1) * sizeof(INPUT_RECORD) ); count--; if (records[i].Event.KeyEvent.bKeyDown) { /* send SIGINT to all processes attached to this console */ propagate_console_signal( console, CTRL_C_EVENT, 0 ); } } else i++; } } if (!console->recnum && count) set_event( console->event ); console->recnum += count; return count; } /* retrieve a pointer to the console input records */ static int read_console_input( obj_handle_t handle, int count, int flush ) { struct console_input *console; if (!(console = (struct console_input *)get_handle_obj( current->process, handle, CONSOLE_READ, &console_input_ops ))) return -1; if (!count) { /* special case: do not retrieve anything, but return * the total number of records available */ count = console->recnum; } else { if (count > console->recnum) count = console->recnum; set_reply_data( console->records, count * sizeof(INPUT_RECORD) ); } if (flush) { int i; for (i = count; i < console->recnum; i++) console->records[i-count] = console->records[i]; if ((console->recnum -= count) > 0) { INPUT_RECORD *new_rec = realloc( console->records, console->recnum * sizeof(INPUT_RECORD) ); if (new_rec) console->records = new_rec; } else { free( console->records ); console->records = NULL; reset_event( console->event ); } } release_object( console ); return count; } /* set misc console input information */ static int set_console_input_info( const struct set_console_input_info_request *req, const WCHAR *title, data_size_t len ) { struct console_input *console; struct console_renderer_event evt; if (!(console = console_input_get( req->handle, CONSOLE_WRITE ))) goto error; memset(&evt.u, 0, sizeof(evt.u)); if (req->mask & SET_CONSOLE_INPUT_INFO_ACTIVE_SB) { struct screen_buffer *screen_buffer; screen_buffer = (struct screen_buffer *)get_handle_obj( current->process, req->active_sb, CONSOLE_WRITE, &screen_buffer_ops ); if (!screen_buffer || screen_buffer->input != console) { set_error( STATUS_INVALID_HANDLE ); if (screen_buffer) release_object( screen_buffer ); goto error; } if (screen_buffer != console->active) { if (console->active) release_object( console->active ); console->active = screen_buffer; generate_sb_initial_events( console ); } else release_object( screen_buffer ); } if (req->mask & SET_CONSOLE_INPUT_INFO_TITLE) { WCHAR *new_title = mem_alloc( len + sizeof(WCHAR) ); if (new_title) { memcpy( new_title, title, len ); new_title[len / sizeof(WCHAR)] = 0; free( console->title ); console->title = new_title; evt.event = CONSOLE_RENDERER_TITLE_EVENT; console_input_events_append( console->evt, &evt ); } } if (req->mask & SET_CONSOLE_INPUT_INFO_HISTORY_MODE) { console->history_mode = req->history_mode; } if ((req->mask & SET_CONSOLE_INPUT_INFO_HISTORY_SIZE) && console->history_size != req->history_size) { WCHAR** mem = NULL; int i; int delta; if (req->history_size) { mem = mem_alloc( req->history_size * sizeof(WCHAR*) ); if (!mem) goto error; memset( mem, 0, req->history_size * sizeof(WCHAR*) ); } delta = (console->history_index > req->history_size) ? (console->history_index - req->history_size) : 0; for (i = delta; i < console->history_index; i++) { mem[i - delta] = console->history[i]; console->history[i] = NULL; } console->history_index -= delta; for (i = 0; i < console->history_size; i++) free( console->history[i] ); free( console->history ); console->history = mem; console->history_size = req->history_size; } if (req->mask & SET_CONSOLE_INPUT_INFO_EDITION_MODE) { console->edition_mode = req->edition_mode; } if (req->mask & SET_CONSOLE_INPUT_INFO_INPUT_CODEPAGE) { console->input_cp = req->input_cp; } if (req->mask & SET_CONSOLE_INPUT_INFO_OUTPUT_CODEPAGE) { console->output_cp = req->output_cp; } if (req->mask & SET_CONSOLE_INPUT_INFO_WIN) { console->win = req->win; } release_object( console ); return 1; error: if (console) release_object( console ); return 0; } /* resize a screen buffer */ static int change_screen_buffer_size( struct screen_buffer *screen_buffer, int new_width, int new_height ) { int i, old_width, old_height, copy_width, copy_height; char_info_t *new_data; if (!(new_data = malloc( new_width * new_height * sizeof(*new_data) ))) { set_error( STATUS_NO_MEMORY ); return 0; } old_width = screen_buffer->width; old_height = screen_buffer->height; copy_width = min( old_width, new_width ); copy_height = min( old_height, new_height ); /* copy all the rows */ for (i = 0; i < copy_height; i++) { memcpy( &new_data[i * new_width], &screen_buffer->data[i * old_width], copy_width * sizeof(char_info_t) ); } /* clear the end of each row */ if (new_width > old_width) { /* fill first row */ for (i = old_width; i < new_width; i++) new_data[i] = empty_char_info; /* and blast it to the other rows */ for (i = 1; i < copy_height; i++) memcpy( &new_data[i * new_width + old_width], &new_data[old_width], (new_width - old_width) * sizeof(char_info_t) ); } /* clear remaining rows */ if (new_height > old_height) { /* fill first row */ for (i = 0; i < new_width; i++) new_data[old_height * new_width + i] = empty_char_info; /* and blast it to the other rows */ for (i = old_height+1; i < new_height; i++) memcpy( &new_data[i * new_width], &new_data[old_height * new_width], new_width * sizeof(char_info_t) ); } free( screen_buffer->data ); screen_buffer->data = new_data; screen_buffer->width = new_width; screen_buffer->height = new_height; return 1; } /* set misc screen buffer information */ static int set_console_output_info( struct screen_buffer *screen_buffer, const struct set_console_output_info_request *req ) { struct console_renderer_event evt; memset(&evt.u, 0, sizeof(evt.u)); if (req->mask & SET_CONSOLE_OUTPUT_INFO_CURSOR_GEOM) { if (req->cursor_size < 1 || req->cursor_size > 100) { set_error( STATUS_INVALID_PARAMETER ); return 0; } if (screen_buffer->cursor_size != req->cursor_size || screen_buffer->cursor_visible != req->cursor_visible) { screen_buffer->cursor_size = req->cursor_size; screen_buffer->cursor_visible = req->cursor_visible; evt.event = CONSOLE_RENDERER_CURSOR_GEOM_EVENT; evt.u.cursor_geom.size = req->cursor_size; evt.u.cursor_geom.visible = req->cursor_visible; console_input_events_append( screen_buffer->input->evt, &evt ); } } if (req->mask & SET_CONSOLE_OUTPUT_INFO_CURSOR_POS) { if (req->cursor_x < 0 || req->cursor_x >= screen_buffer->width || req->cursor_y < 0 || req->cursor_y >= screen_buffer->height) { set_error( STATUS_INVALID_PARAMETER ); return 0; } if (screen_buffer->cursor_x != req->cursor_x || screen_buffer->cursor_y != req->cursor_y) { screen_buffer->cursor_x = req->cursor_x; screen_buffer->cursor_y = req->cursor_y; evt.event = CONSOLE_RENDERER_CURSOR_POS_EVENT; evt.u.cursor_pos.x = req->cursor_x; evt.u.cursor_pos.y = req->cursor_y; console_input_events_append( screen_buffer->input->evt, &evt ); } } if (req->mask & SET_CONSOLE_OUTPUT_INFO_SIZE) { unsigned cc; /* new screen-buffer cannot be smaller than actual window */ if (req->width < screen_buffer->win.right - screen_buffer->win.left + 1 || req->height < screen_buffer->win.bottom - screen_buffer->win.top + 1) { set_error( STATUS_INVALID_PARAMETER ); return 0; } /* FIXME: there are also some basic minimum and max size to deal with */ if (!change_screen_buffer_size( screen_buffer, req->width, req->height )) return 0; evt.event = CONSOLE_RENDERER_SB_RESIZE_EVENT; evt.u.resize.width = req->width; evt.u.resize.height = req->height; console_input_events_append( screen_buffer->input->evt, &evt ); evt.event = CONSOLE_RENDERER_UPDATE_EVENT; evt.u.update.top = 0; evt.u.update.bottom = screen_buffer->height - 1; console_input_events_append( screen_buffer->input->evt, &evt ); /* scroll window to display sb */ if (screen_buffer->win.right >= req->width) { screen_buffer->win.right -= screen_buffer->win.left; screen_buffer->win.left = 0; } if (screen_buffer->win.bottom >= req->height) { screen_buffer->win.bottom -= screen_buffer->win.top; screen_buffer->win.top = 0; } /* reset cursor if needed (normally, if cursor was outside of new sb, the * window has been shifted so that the new position of the cursor will be * visible */ cc = 0; if (screen_buffer->cursor_x >= req->width) { screen_buffer->cursor_x = req->width - 1; cc++; } if (screen_buffer->cursor_y >= req->height) { screen_buffer->cursor_y = req->height - 1; cc++; } if (cc) { evt.event = CONSOLE_RENDERER_CURSOR_POS_EVENT; evt.u.cursor_pos.x = req->cursor_x; evt.u.cursor_pos.y = req->cursor_y; console_input_events_append( screen_buffer->input->evt, &evt ); } if (screen_buffer == screen_buffer->input->active && screen_buffer->input->mode & ENABLE_WINDOW_INPUT) { INPUT_RECORD ir; ir.EventType = WINDOW_BUFFER_SIZE_EVENT; ir.Event.WindowBufferSizeEvent.dwSize.X = req->width; ir.Event.WindowBufferSizeEvent.dwSize.Y = req->height; write_console_input( screen_buffer->input, 1, &ir ); } } if (req->mask & SET_CONSOLE_OUTPUT_INFO_ATTR) { screen_buffer->attr = req->attr; } if (req->mask & SET_CONSOLE_OUTPUT_INFO_DISPLAY_WINDOW) { if (req->win_left < 0 || req->win_left > req->win_right || req->win_right >= screen_buffer->width || req->win_top < 0 || req->win_top > req->win_bottom || req->win_bottom >= screen_buffer->height) { set_error( STATUS_INVALID_PARAMETER ); return 0; } if (screen_buffer->win.left != req->win_left || screen_buffer->win.top != req->win_top || screen_buffer->win.right != req->win_right || screen_buffer->win.bottom != req->win_bottom) { screen_buffer->win.left = req->win_left; screen_buffer->win.top = req->win_top; screen_buffer->win.right = req->win_right; screen_buffer->win.bottom = req->win_bottom; evt.event = CONSOLE_RENDERER_DISPLAY_EVENT; evt.u.display.left = req->win_left; evt.u.display.top = req->win_top; evt.u.display.width = req->win_right - req->win_left + 1; evt.u.display.height = req->win_bottom - req->win_top + 1; console_input_events_append( screen_buffer->input->evt, &evt ); } } if (req->mask & SET_CONSOLE_OUTPUT_INFO_MAX_SIZE) { /* can only be done by renderer */ if (current->process->console != screen_buffer->input) { set_error( STATUS_INVALID_PARAMETER ); return 0; } screen_buffer->max_width = req->max_width; screen_buffer->max_height = req->max_height; } return 1; } /* appends a new line to history (history is a fixed size array) */ static void console_input_append_hist( struct console_input* console, const WCHAR* buf, data_size_t len ) { WCHAR* ptr = mem_alloc( (len + 1) * sizeof(WCHAR) ); if (!ptr) return; if (!console || !console->history_size) { set_error( STATUS_INVALID_PARAMETER ); /* FIXME */ free( ptr ); return; } memcpy( ptr, buf, len * sizeof(WCHAR) ); ptr[len] = 0; if (console->history_mode && console->history_index && strncmpW( console->history[console->history_index - 1], ptr, len * sizeof(WCHAR) ) == 0) { /* ok, mode ask us to not use twice the same string... * so just free mem and returns */ set_error( STATUS_ALIAS_EXISTS ); free(ptr); return; } if (console->history_index < console->history_size) { console->history[console->history_index++] = ptr; } else { free( console->history[0]) ; memmove( &console->history[0], &console->history[1], (console->history_size - 1) * sizeof(WCHAR*) ); console->history[console->history_size - 1] = ptr; } } /* returns a line from the cache */ static data_size_t console_input_get_hist( struct console_input *console, int index ) { data_size_t ret = 0; if (index >= console->history_index) set_error( STATUS_INVALID_PARAMETER ); else { ret = strlenW( console->history[index] ) * sizeof(WCHAR); set_reply_data( console->history[index], min( ret, get_reply_max_size() )); } return ret; } /* dumb dump */ static void console_input_dump( struct object *obj, int verbose ) { struct console_input *console = (struct console_input *)obj; assert( obj->ops == &console_input_ops ); fprintf( stderr, "Console input active=%p evt=%p\n", console->active, console->evt ); } static void console_input_destroy( struct object *obj ) { struct console_input* console_in = (struct console_input *)obj; struct screen_buffer* curr; int i; assert( obj->ops == &console_input_ops ); free( console_in->title ); free( console_in->records ); if (console_in->active) release_object( console_in->active ); console_in->active = NULL; LIST_FOR_EACH_ENTRY( curr, &screen_buffer_list, struct screen_buffer, entry ) { if (curr->input == console_in) curr->input = NULL; } release_object( console_in->evt ); console_in->evt = NULL; release_object( console_in->event ); for (i = 0; i < console_in->history_size; i++) free( console_in->history[i] ); free( console_in->history ); } static void screen_buffer_dump( struct object *obj, int verbose ) { struct screen_buffer *screen_buffer = (struct screen_buffer *)obj; assert( obj->ops == &screen_buffer_ops ); fprintf(stderr, "Console screen buffer input=%p\n", screen_buffer->input ); } static void screen_buffer_destroy( struct object *obj ) { struct screen_buffer *screen_buffer = (struct screen_buffer *)obj; assert( obj->ops == &screen_buffer_ops ); list_remove( &screen_buffer->entry ); if (screen_buffer->input && screen_buffer->input->active == screen_buffer) { struct screen_buffer *sb; screen_buffer->input->active = NULL; LIST_FOR_EACH_ENTRY( sb, &screen_buffer_list, struct screen_buffer, entry ) { if (sb->input == screen_buffer->input) { sb->input->active = sb; break; } } } free( screen_buffer->data ); } /* write data into a screen buffer */ static int write_console_output( struct screen_buffer *screen_buffer, data_size_t size, const void* data, enum char_info_mode mode, int x, int y, int wrap ) { unsigned int i; char_info_t *end, *dest = screen_buffer->data + y * screen_buffer->width + x; if (y >= screen_buffer->height) return 0; if (wrap) end = screen_buffer->data + screen_buffer->height * screen_buffer->width; else end = screen_buffer->data + (y+1) * screen_buffer->width; switch(mode) { case CHAR_INFO_MODE_TEXT: { const WCHAR *ptr = data; for (i = 0; i < size/sizeof(*ptr) && dest < end; dest++, i++) dest->ch = ptr[i]; } break; case CHAR_INFO_MODE_ATTR: { const unsigned short *ptr = data; for (i = 0; i < size/sizeof(*ptr) && dest < end; dest++, i++) dest->attr = ptr[i]; } break; case CHAR_INFO_MODE_TEXTATTR: { const char_info_t *ptr = data; for (i = 0; i < size/sizeof(*ptr) && dest < end; dest++, i++) *dest = ptr[i]; } break; case CHAR_INFO_MODE_TEXTSTDATTR: { const WCHAR *ptr = data; for (i = 0; i < size/sizeof(*ptr) && dest < end; dest++, i++) { dest->ch = ptr[i]; dest->attr = screen_buffer->attr; } } break; default: set_error( STATUS_INVALID_PARAMETER ); return 0; } if (i && screen_buffer == screen_buffer->input->active) { struct console_renderer_event evt; evt.event = CONSOLE_RENDERER_UPDATE_EVENT; memset(&evt.u, 0, sizeof(evt.u)); evt.u.update.top = y + x / screen_buffer->width; evt.u.update.bottom = y + (x + i - 1) / screen_buffer->width; console_input_events_append( screen_buffer->input->evt, &evt ); } return i; } /* fill a screen buffer with uniform data */ static int fill_console_output( struct screen_buffer *screen_buffer, char_info_t data, enum char_info_mode mode, int x, int y, int count, int wrap ) { int i; char_info_t *end, *dest = screen_buffer->data + y * screen_buffer->width + x; if (y >= screen_buffer->height) return 0; if (wrap) end = screen_buffer->data + screen_buffer->height * screen_buffer->width; else end = screen_buffer->data + (y+1) * screen_buffer->width; if (count > end - dest) count = end - dest; switch(mode) { case CHAR_INFO_MODE_TEXT: for (i = 0; i < count; i++) dest[i].ch = data.ch; break; case CHAR_INFO_MODE_ATTR: for (i = 0; i < count; i++) dest[i].attr = data.attr; break; case CHAR_INFO_MODE_TEXTATTR: for (i = 0; i < count; i++) dest[i] = data; break; case CHAR_INFO_MODE_TEXTSTDATTR: for (i = 0; i < count; i++) { dest[i].ch = data.ch; dest[i].attr = screen_buffer->attr; } break; default: set_error( STATUS_INVALID_PARAMETER ); return 0; } if (count && screen_buffer == screen_buffer->input->active) { struct console_renderer_event evt; evt.event = CONSOLE_RENDERER_UPDATE_EVENT; memset(&evt.u, 0, sizeof(evt.u)); evt.u.update.top = y; evt.u.update.bottom = (y * screen_buffer->width + x + count - 1) / screen_buffer->width; console_input_events_append( screen_buffer->input->evt, &evt ); } return i; } /* read data from a screen buffer */ static void read_console_output( struct screen_buffer *screen_buffer, int x, int y, enum char_info_mode mode, int wrap ) { int i; char_info_t *end, *src = screen_buffer->data + y * screen_buffer->width + x; if (y >= screen_buffer->height) return; if (wrap) end = screen_buffer->data + screen_buffer->height * screen_buffer->width; else end = screen_buffer->data + (y+1) * screen_buffer->width; switch(mode) { case CHAR_INFO_MODE_TEXT: { WCHAR *data; int count = min( end - src, get_reply_max_size() / sizeof(*data) ); if ((data = set_reply_data_size( count * sizeof(*data) ))) { for (i = 0; i < count; i++) data[i] = src[i].ch; } } break; case CHAR_INFO_MODE_ATTR: { unsigned short *data; int count = min( end - src, get_reply_max_size() / sizeof(*data) ); if ((data = set_reply_data_size( count * sizeof(*data) ))) { for (i = 0; i < count; i++) data[i] = src[i].attr; } } break; case CHAR_INFO_MODE_TEXTATTR: { char_info_t *data; int count = min( end - src, get_reply_max_size() / sizeof(*data) ); if ((data = set_reply_data_size( count * sizeof(*data) ))) { for (i = 0; i < count; i++) data[i] = src[i]; } } break; default: set_error( STATUS_INVALID_PARAMETER ); break; } } /* scroll parts of a screen buffer */ static void scroll_console_output( obj_handle_t handle, int xsrc, int ysrc, int xdst, int ydst, int w, int h ) { struct screen_buffer *screen_buffer; int j; char_info_t *psrc, *pdst; struct console_renderer_event evt; if (!(screen_buffer = (struct screen_buffer *)get_handle_obj( current->process, handle, CONSOLE_READ, &screen_buffer_ops ))) return; if (xsrc < 0 || ysrc < 0 || xdst < 0 || ydst < 0 || xsrc + w > screen_buffer->width || xdst + w > screen_buffer->width || ysrc + h > screen_buffer->height || ydst + h > screen_buffer->height || w == 0 || h == 0) { set_error( STATUS_INVALID_PARAMETER ); release_object( screen_buffer ); return; } if (ysrc < ydst) { psrc = &screen_buffer->data[(ysrc + h - 1) * screen_buffer->width + xsrc]; pdst = &screen_buffer->data[(ydst + h - 1) * screen_buffer->width + xdst]; for (j = h; j > 0; j--) { memcpy(pdst, psrc, w * sizeof(*pdst) ); pdst -= screen_buffer->width; psrc -= screen_buffer->width; } } else { psrc = &screen_buffer->data[ysrc * screen_buffer->width + xsrc]; pdst = &screen_buffer->data[ydst * screen_buffer->width + xdst]; for (j = 0; j < h; j++) { /* we use memmove here because when psrc and pdst are the same, * copies are done on the same row, so the dst and src blocks * can overlap */ memmove( pdst, psrc, w * sizeof(*pdst) ); pdst += screen_buffer->width; psrc += screen_buffer->width; } } /* FIXME: this could be enhanced, by signalling scroll */ evt.event = CONSOLE_RENDERER_UPDATE_EVENT; memset(&evt.u, 0, sizeof(evt.u)); evt.u.update.top = min(ysrc, ydst); evt.u.update.bottom = max(ysrc, ydst) + h - 1; console_input_events_append( screen_buffer->input->evt, &evt ); release_object( screen_buffer ); } /* allocate a console for the renderer */ DECL_HANDLER(alloc_console) { obj_handle_t in = 0; obj_handle_t evt = 0; struct process *process; struct process *renderer = current->process; struct console_input *console; if (req->pid) { if (!(process = get_process_from_id( req->pid ))) return; } else { if (!(process = renderer->parent)) { set_error( STATUS_ACCESS_DENIED ); return; } grab_object( process ); } if (process != renderer && process->console) { set_error( STATUS_ACCESS_DENIED ); goto the_end; } if ((console = (struct console_input*)create_console_input( current ))) { if ((in = alloc_handle( renderer, console, req->access, req->attributes ))) { if ((evt = alloc_handle( renderer, console->evt, SYNCHRONIZE|GENERIC_READ|GENERIC_WRITE, 0 ))) { if (process != renderer) { process->console = (struct console_input*)grab_object( console ); console->num_proc++; } reply->handle_in = in; reply->event = evt; release_object( console ); goto the_end; } close_handle( renderer, in ); } free_console( process ); } the_end: release_object( process ); } /* free the console of the current process */ DECL_HANDLER(free_console) { free_console( current->process ); } /* let the renderer peek the events it's waiting on */ DECL_HANDLER(get_console_renderer_events) { struct console_input_events *evt; evt = (struct console_input_events *)get_handle_obj( current->process, req->handle, CONSOLE_READ, &console_input_events_ops ); if (!evt) return; console_input_events_get( evt ); release_object( evt ); } /* open a handle to the process console */ DECL_HANDLER(open_console) { struct object *obj = NULL; reply->handle = 0; if (!req->from) { if (current->process->console && current->process->console->renderer) obj = grab_object( (struct object*)current->process->console ); } else if (req->from == (obj_handle_t)1) { if (current->process->console && current->process->console->renderer && current->process->console->active) obj = grab_object( (struct object*)current->process->console->active ); } else if ((obj = get_handle_obj( current->process, req->from, CONSOLE_READ|CONSOLE_WRITE, &console_input_ops ))) { struct console_input *console = (struct console_input *)obj; obj = (console->active) ? grab_object( console->active ) : NULL; release_object( console ); } /* FIXME: req->share is not used (as in screen buffer creation) */ if (obj) { reply->handle = alloc_handle( current->process, obj, req->access, req->attributes ); release_object( obj ); } else if (!get_error()) set_error( STATUS_ACCESS_DENIED ); } /* set info about a console input */ DECL_HANDLER(set_console_input_info) { set_console_input_info( req, get_req_data(), get_req_data_size() ); } /* get info about a console (output only) */ DECL_HANDLER(get_console_input_info) { struct console_input *console; if (!(console = console_input_get( req->handle, CONSOLE_READ ))) return; if (console->title) { data_size_t len = strlenW( console->title ) * sizeof(WCHAR); if (len > get_reply_max_size()) len = get_reply_max_size(); set_reply_data( console->title, len ); } reply->history_mode = console->history_mode; reply->history_size = console->history_size; reply->history_index = console->history_index; reply->edition_mode = console->edition_mode; reply->input_cp = console->input_cp; reply->output_cp = console->output_cp; reply->win = console->win; release_object( console ); } /* get a console mode (input or output) */ DECL_HANDLER(get_console_mode) { reply->mode = get_console_mode( req->handle ); } /* set a console mode (input or output) */ DECL_HANDLER(set_console_mode) { set_console_mode( req->handle, req->mode ); } /* add input records to a console input queue */ DECL_HANDLER(write_console_input) { struct console_input *console; reply->written = 0; if (!(console = (struct console_input *)get_handle_obj( current->process, req->handle, CONSOLE_WRITE, &console_input_ops ))) return; reply->written = write_console_input( console, get_req_data_size() / sizeof(INPUT_RECORD), get_req_data() ); release_object( console ); } /* fetch input records from a console input queue */ DECL_HANDLER(read_console_input) { int count = get_reply_max_size() / sizeof(INPUT_RECORD); reply->read = read_console_input( req->handle, count, req->flush ); } /* appends a string to console's history */ DECL_HANDLER(append_console_input_history) { struct console_input *console; if (!(console = console_input_get( req->handle, CONSOLE_WRITE ))) return; console_input_append_hist( console, get_req_data(), get_req_data_size() / sizeof(WCHAR) ); release_object( console ); } /* appends a string to console's history */ DECL_HANDLER(get_console_input_history) { struct console_input *console; if (!(console = console_input_get( req->handle, CONSOLE_WRITE ))) return; reply->total = console_input_get_hist( console, req->index ); release_object( console ); } /* creates a screen buffer */ DECL_HANDLER(create_console_output) { struct console_input* console; struct screen_buffer* screen_buffer; if (!(console = console_input_get( req->handle_in, CONSOLE_WRITE ))) return; screen_buffer = create_console_output( console ); if (screen_buffer) { /* FIXME: should store sharing and test it when opening the CONOUT$ device * see file.c on how this could be done */ reply->handle_out = alloc_handle( current->process, screen_buffer, req->access, req->attributes ); release_object( screen_buffer ); } release_object( console ); } /* set info about a console screen buffer */ DECL_HANDLER(set_console_output_info) { struct screen_buffer *screen_buffer; if ((screen_buffer = (struct screen_buffer*)get_handle_obj( current->process, req->handle, CONSOLE_WRITE, &screen_buffer_ops))) { set_console_output_info( screen_buffer, req ); release_object( screen_buffer ); } } /* get info about a console screen buffer */ DECL_HANDLER(get_console_output_info) { struct screen_buffer *screen_buffer; if ((screen_buffer = (struct screen_buffer *)get_handle_obj( current->process, req->handle, CONSOLE_READ, &screen_buffer_ops))) { reply->cursor_size = screen_buffer->cursor_size; reply->cursor_visible = screen_buffer->cursor_visible; reply->cursor_x = screen_buffer->cursor_x; reply->cursor_y = screen_buffer->cursor_y; reply->width = screen_buffer->width; reply->height = screen_buffer->height; reply->attr = screen_buffer->attr; reply->win_left = screen_buffer->win.left; reply->win_top = screen_buffer->win.top; reply->win_right = screen_buffer->win.right; reply->win_bottom = screen_buffer->win.bottom; reply->max_width = screen_buffer->max_width; reply->max_height = screen_buffer->max_height; release_object( screen_buffer ); } } /* read data (chars & attrs) from a screen buffer */ DECL_HANDLER(read_console_output) { struct screen_buffer *screen_buffer; if ((screen_buffer = (struct screen_buffer*)get_handle_obj( current->process, req->handle, CONSOLE_READ, &screen_buffer_ops ))) { read_console_output( screen_buffer, req->x, req->y, req->mode, req->wrap ); reply->width = screen_buffer->width; reply->height = screen_buffer->height; release_object( screen_buffer ); } } /* write data (char and/or attrs) to a screen buffer */ DECL_HANDLER(write_console_output) { struct screen_buffer *screen_buffer; if ((screen_buffer = (struct screen_buffer*)get_handle_obj( current->process, req->handle, CONSOLE_WRITE, &screen_buffer_ops))) { reply->written = write_console_output( screen_buffer, get_req_data_size(), get_req_data(), req->mode, req->x, req->y, req->wrap ); reply->width = screen_buffer->width; reply->height = screen_buffer->height; release_object( screen_buffer ); } } /* fill a screen buffer with constant data (chars and/or attributes) */ DECL_HANDLER(fill_console_output) { struct screen_buffer *screen_buffer; if ((screen_buffer = (struct screen_buffer*)get_handle_obj( current->process, req->handle, CONSOLE_WRITE, &screen_buffer_ops))) { reply->written = fill_console_output( screen_buffer, req->data, req->mode, req->x, req->y, req->count, req->wrap ); release_object( screen_buffer ); } } /* move a rect of data in a screen buffer */ DECL_HANDLER(move_console_output) { scroll_console_output( req->handle, req->x_src, req->y_src, req->x_dst, req->y_dst, req->w, req->h ); } /* sends a signal to a console (process, group...) */ DECL_HANDLER(send_console_signal) { process_id_t group; group = req->group_id ? req->group_id : current->process->group_id; if (!group) set_error( STATUS_INVALID_PARAMETER ); else propagate_console_signal( current->process->console, req->signal, group ); } /* get console which renderer is 'current' */ static int cgwe_enum( struct process* process, void* user) { if (process->console && process->console->renderer == current) { *(struct console_input**)user = process->console; return 1; } return 0; } DECL_HANDLER(get_console_wait_event) { struct console_input* console = NULL; if (current->process->console && current->process->console->renderer) console = (struct console_input*)grab_object( (struct object*)current->process->console ); else enum_processes(cgwe_enum, &console); if (console) { reply->handle = alloc_handle( current->process, console->event, EVENT_ALL_ACCESS, 0 ); release_object( console ); } else set_error( STATUS_INVALID_PARAMETER ); }