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main.c
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main.c
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#define _POSIX_C_SOURCE 200809L
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <poll.h>
#include <signal.h>
#include <spawn.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <time.h>
#include <unistd.h>
#include <wayland-client.h>
#include <wayland-server-core.h>
#include <wayland-server-protocol.h>
#include <wordexp.h>
#include "background-image.h"
#include "cairo.h"
#include "comm.h"
#include "log.h"
#include "loop.h"
#include "password-buffer.h"
#include "pool-buffer.h"
#include "seat.h"
#include "swaylock.h"
#include "ext-session-lock-v1-client-protocol.h"
#include "xdg-output-unstable-v1-client-protocol.h"
#include "fullscreen-shell-unstable-v1-client-protocol.h"
#include "xdg-output-unstable-v1-server-protocol.h"
#include "wlr-layer-shell-unstable-v1-server-protocol.h"
#include "linux-dmabuf-unstable-v1-client-protocol.h"
#define WL_OUTPUT_MM_PER_PIX 0.264
#define WL_OUTPUT_VERSION 4
#define TIMEOUT_CONNECT 5000
#define TIMEOUT_SURFACE 10000
static void bind_wl_output(struct wl_client *client, void *data,
uint32_t version, uint32_t id);
static void render_fallback_surface(struct swaylock_surface *surface);
static void output_redraw_timeout(void *data);
static bool run_plugin_command(struct swaylock_state *state, struct swaylock_surface *output);
static void setup_clientless_mode(struct swaylock_state *state);
extern char **environ;
static uint32_t parse_color(const char *color) {
if (color[0] == '#') {
++color;
}
int len = strlen(color);
if (len != 6 && len != 8) {
swaylock_log(LOG_DEBUG, "Invalid color %s, defaulting to 0xFFFFFFFF",
color);
return 0xFFFFFFFF;
}
uint32_t res = (uint32_t)strtoul(color, NULL, 16);
if (strlen(color) == 6) {
res = (res << 8) | 0xFF;
}
return res;
}
bool set_cloexec(int fd) {
int flags = fcntl(fd, F_GETFD);
if (flags == -1) {
return false;
}
flags = flags | FD_CLOEXEC;
if (fcntl(fd, F_SETFD, flags) == -1) {
return false;
}
return true;
}
int lenient_strcmp(char *a, char *b) {
if (a == b) {
return 0;
} else if (!a) {
return -1;
} else if (!b) {
return 1;
} else {
return strcmp(a, b);
}
}
static void daemonize(void) {
int fds[2];
if (pipe(fds) != 0) {
swaylock_log(LOG_ERROR, "Failed to pipe");
exit(1);
}
if (fork() == 0) {
setsid();
close(fds[0]);
int devnull = open("/dev/null", O_RDWR);
dup2(STDOUT_FILENO, devnull);
dup2(STDERR_FILENO, devnull);
close(devnull);
uint8_t success = 0;
if (chdir("/") != 0) {
write(fds[1], &success, 1);
exit(1);
}
success = 1;
if (write(fds[1], &success, 1) != 1) {
exit(1);
}
close(fds[1]);
} else {
close(fds[1]);
uint8_t success;
if (read(fds[0], &success, 1) != 1 || !success) {
swaylock_log(LOG_ERROR, "Failed to daemonize");
exit(1);
}
close(fds[0]);
exit(0);
}
}
static void destroy_surface(struct swaylock_surface *surface) {
struct swaylock_state *state = surface->state;
wl_list_remove(&surface->link);
if (surface->plugin_surface) {
// todo: proper cleanup
zwlr_layer_surface_v1_send_closed(surface->plugin_surface->layer_surface);
surface->plugin_surface->sway_surface = NULL;
surface->plugin_surface->inert = true;
}
if (surface->nested_server_output) {
wl_global_remove(surface->nested_server_output);
// Unlink the resources; calling wl_resource_remove might be unsafe?
struct wl_resource *output, *tmp;
wl_resource_for_each_safe(output, tmp, &surface->nested_server_xdg_output_resources) {
wl_list_remove(wl_resource_get_link(output));
wl_list_insert(&state->stale_xdg_output_resources, wl_resource_get_link(output));
}
wl_resource_for_each_safe(output, tmp, &surface->nested_server_wl_output_resources) {
wl_list_remove(wl_resource_get_link(output));
wl_list_insert(&state->stale_wl_output_resources, wl_resource_get_link(output));
}
}
if (surface->client_submission_timer) {
loop_remove_timer(state->eventloop, surface->client_submission_timer);
}
if (surface->ext_session_lock_surface_v1 != NULL) {
ext_session_lock_surface_v1_destroy(surface->ext_session_lock_surface_v1);
}
if (surface->subsurface) {
wl_subsurface_destroy(surface->subsurface);
}
if (surface->child) {
wl_surface_destroy(surface->child);
}
if (surface->surface != NULL) {
wl_surface_destroy(surface->surface);
}
destroy_buffer(&surface->indicator_buffers[0]);
destroy_buffer(&surface->indicator_buffers[1]);
wl_output_release(surface->output);
free(surface);
}
static const struct ext_session_lock_surface_v1_listener ext_session_lock_surface_v1_listener;
static cairo_surface_t *select_image(struct swaylock_state *state,
struct swaylock_surface *surface);
static bool surface_is_opaque(struct swaylock_surface *surface) {
if (surface->image) {
return cairo_surface_get_content(surface->image) == CAIRO_CONTENT_COLOR;
}
return (surface->state->args.colors.background & 0xff) == 0xff;
}
static void create_surface(struct swaylock_surface *surface) {
struct swaylock_state *state = surface->state;
surface->image = select_image(state, surface);
surface->surface = wl_compositor_create_surface(state->compositor);
assert(surface->surface);
surface->child = wl_compositor_create_surface(state->compositor);
assert(surface->child);
surface->subsurface = wl_subcompositor_get_subsurface(state->subcompositor, surface->child, surface->surface);
assert(surface->subsurface);
wl_subsurface_set_sync(surface->subsurface);
surface->ext_session_lock_surface_v1 = ext_session_lock_v1_get_lock_surface(
state->ext_session_lock_v1, surface->surface, surface->output);
ext_session_lock_surface_v1_add_listener(surface->ext_session_lock_surface_v1,
&ext_session_lock_surface_v1_listener, surface);
if (surface_is_opaque(surface) &&
surface->state->args.mode != BACKGROUND_MODE_CENTER &&
surface->state->args.mode != BACKGROUND_MODE_FIT) {
struct wl_region *region =
wl_compositor_create_region(surface->state->compositor);
wl_region_add(region, 0, 0, INT32_MAX, INT32_MAX);
wl_surface_set_opaque_region(surface->surface, region);
wl_region_destroy(region);
}
// Plugin should provide a surface quickly enough, after compositor
// has made the necessary details available
surface->client_submission_timer = loop_add_timer(state->eventloop,
TIMEOUT_SURFACE, output_redraw_timeout, surface);
// Run command, now that we know the output's name and description,
// and can pass these along to the plugin program using environment
// variables, so it can e.g. decide which wallpaper program to run.
if (state->args.plugin_per_output) {
if (!run_plugin_command(state, surface)) {
setup_clientless_mode(state);
}
}
surface->created = true;
}
static void forward_configure(struct swaylock_surface *surface, bool first_configure, uint32_t serial) {
if (first_configure && (surface->width > 0 && surface->height > 0)) {
// delay output creation until we know exactly what layer
// surface size we are provided with.
surface->nested_server_output = wl_global_create(
surface->state->server.display, &wl_output_interface,
WL_OUTPUT_VERSION, surface, bind_wl_output);
surface->first_configure_serial = serial;
surface->used_first_configure = false;
} else if (surface->width > 0 && surface->height > 0) {
struct wl_resource *output;
wl_resource_for_each(output, &surface->nested_server_wl_output_resources) {
wl_output_send_geometry(output, 0, 0, surface->physical_width,
surface->physical_height, surface->subpixel,
"swaylock", "swaylock", surface->output_transform);
wl_output_send_mode(output, 1, surface->mode_width, surface->mode_height, 0);
wl_output_send_scale(output, surface->scale);
wl_output_send_done(output);
}
struct wl_resource *xdg_output;
wl_resource_for_each(xdg_output, &surface->nested_server_xdg_output_resources) {
zxdg_output_v1_send_logical_size(xdg_output, surface->width, surface->height);
zxdg_output_v1_send_done(xdg_output);
}
if (surface->plugin_surface) {
/* reconfigure plugin surface with new size */
if (surface->plugin_surface->has_been_configured) {
/* wait until the first commit/configure cycle is over */
struct swaylock_bg_client *bg_client = surface->client ?
surface->client : surface->state->server.main_client;
uint32_t plugin_serial = bg_client->serial++;
add_serial_pair(surface->plugin_surface, serial, plugin_serial, false);
zwlr_layer_surface_v1_send_configure(surface->plugin_surface->layer_surface,
plugin_serial,
surface->width, surface->height);
}
}
}
}
static void ext_session_lock_surface_v1_handle_configure(void *data,
struct ext_session_lock_surface_v1 *lock_surface, uint32_t serial,
uint32_t width, uint32_t height) {
struct swaylock_surface *surface = data;
bool first_configure = surface->width <= 0 || surface->height <= 0;
bool size_change = surface->width != width || surface->height != height;
surface->width = width;
surface->height = height;
surface->newest_serial = serial;
/* Quoting the spec:
* Sending an ack_configure request consumes the configure event
* referenced by the given serial, as well as all older configure
* events sent on this object.
*
* wlr-layer-shell and xdg-shell do not have equivalent language.
*
* This makes mixing client vs plugin rendering tricky.
*
*/
if (surface->state->server.display) {
forward_configure(surface, first_configure, serial);
surface->has_newer_serial = true;
} else {
ext_session_lock_surface_v1_ack_configure(surface->ext_session_lock_surface_v1, serial);
render_fallback_surface(surface);
}
if (surface->has_buffer) {
render_frame(surface);
}
if (size_change && !first_configure) {
// Only start timer if the old one has entirely elapsed.
// todo: eventually launch timers for every-configure that
// needs an update. Problem: do noop-configures or reverted
// configures need acknowledgement?
if (!surface->client_submission_timer) {
surface->client_submission_timer = loop_add_timer(surface->state->eventloop,
TIMEOUT_SURFACE, output_redraw_timeout, surface);
}
}
}
static const struct ext_session_lock_surface_v1_listener ext_session_lock_surface_v1_listener = {
.configure = ext_session_lock_surface_v1_handle_configure,
};
static const struct wl_callback_listener surface_frame_listener;
static void surface_frame_handle_done(void *data, struct wl_callback *callback,
uint32_t time) {
struct swaylock_surface *surface = data;
wl_callback_destroy(callback);
surface->frame_pending = false;
if (surface->dirty) {
// Schedule a frame in case the surface is damaged again
struct wl_callback *callback = wl_surface_frame(surface->surface);
wl_callback_add_listener(callback, &surface_frame_listener, surface);
surface->frame_pending = true;
if (surface->has_buffer) {
render_frame(surface);
}
surface->dirty = false;
}
}
static const struct wl_callback_listener surface_frame_listener = {
.done = surface_frame_handle_done,
};
void damage_surface(struct swaylock_surface *surface) {
if (!surface->created) {
return;
}
if (surface->width == 0 || surface->height == 0) {
// Not yet configured
return;
}
surface->dirty = true;
if (surface->frame_pending) {
return;
}
if (surface->has_buffer) {
struct wl_callback *callback = wl_surface_frame(surface->surface);
wl_callback_add_listener(callback, &surface_frame_listener, surface);
surface->frame_pending = true;
wl_surface_commit(surface->surface);
}
}
void damage_state(struct swaylock_state *state) {
struct swaylock_surface *surface;
wl_list_for_each(surface, &state->surfaces, link) {
damage_surface(surface);
}
}
static void handle_wl_output_geometry(void *data, struct wl_output *wl_output,
int32_t x, int32_t y, int32_t width_mm, int32_t height_mm,
int32_t subpixel, const char *make, const char *model,
int32_t transform) {
struct swaylock_surface *surface = data;
surface->subpixel = subpixel;
surface->physical_width = width_mm;
surface->physical_height = height_mm;
surface->output_transform = transform;
if (surface->state->run_display) {
damage_surface(surface);
}
}
static void handle_wl_output_mode(void *data, struct wl_output *output,
uint32_t flags, int32_t width, int32_t height, int32_t refresh) {
struct swaylock_surface *surface = data;
if (flags & WL_OUTPUT_MODE_CURRENT) {
surface->mode_width = width;
surface->mode_height = height;
}
}
static void handle_wl_output_done(void *data, struct wl_output *output) {
struct swaylock_surface *surface = data;
if (!surface->created && surface->state->run_display) {
if (!surface->output_name || !surface->output_description) {
swaylock_log(LOG_ERROR, "wl_output::done received, but no name/desription pair yet. Delaying surface creation until these arrived.");
return;
}
create_surface(surface);
}
}
static void handle_wl_output_scale(void *data, struct wl_output *output,
int32_t factor) {
struct swaylock_surface *surface = data;
surface->scale = factor;
if (surface->state->run_display) {
damage_surface(surface);
}
}
static void handle_wl_output_name(void *data, struct wl_output *output,
const char *name) {
struct swaylock_surface *surface = data;
free(surface->output_name);
surface->output_name = strdup(name);
}
static void handle_wl_output_description(void *data, struct wl_output *output,
const char *description) {
struct swaylock_surface *surface = data;
free(surface->output_description);
surface->output_description = strdup(description);
}
struct wl_output_listener _wl_output_listener = {
.geometry = handle_wl_output_geometry,
.mode = handle_wl_output_mode,
.done = handle_wl_output_done,
.scale = handle_wl_output_scale,
.name = handle_wl_output_name,
.description = handle_wl_output_description,
};
static void ext_session_lock_v1_handle_locked(void *data, struct ext_session_lock_v1 *lock) {
struct swaylock_state *state = data;
state->locked = true;
}
static void ext_session_lock_v1_handle_finished(void *data, struct ext_session_lock_v1 *lock) {
swaylock_log(LOG_ERROR, "Failed to lock session -- "
"is another lockscreen running?");
exit(2);
}
static const struct ext_session_lock_v1_listener ext_session_lock_v1_listener = {
.locked = ext_session_lock_v1_handle_locked,
.finished = ext_session_lock_v1_handle_finished,
};
static void wl_shm_handle_format(void *data, struct wl_shm *wl_shm, uint32_t format) {
struct forward_state *forward = data;
uint32_t *new_fmts = realloc(forward->shm_formats, sizeof(uint32_t) * (forward->shm_formats_len + 1));
if (new_fmts) {
forward->shm_formats = new_fmts;
forward->shm_formats[forward->shm_formats_len] = format;
forward->shm_formats_len++;
}
}
static const struct wl_shm_listener shm_listener = {
.format = wl_shm_handle_format,
};
static void linux_dmabuf_handle_format(void *data, struct zwp_linux_dmabuf_v1 *linux_dmabuf,
uint32_t format) {
/* ignore, can be reconstructed from modifier list */
}
static void linux_dmabuf_handle_modifier(void *data, struct zwp_linux_dmabuf_v1 *linux_dmabuf,
uint32_t format, uint32_t modifier_hi, uint32_t modifier_lo) {
/* ignore, can be reconstructed from modifier list */
struct forward_state *forward = data;
// todo: quadratic runtime, fix. also sort these?
struct dmabuf_modifier_pair *new_fmts = realloc(forward->dmabuf_formats, sizeof(struct dmabuf_modifier_pair) * (forward->dmabuf_formats_len + 1));
if (new_fmts) {
forward->dmabuf_formats = new_fmts;
forward->dmabuf_formats[forward->dmabuf_formats_len].format = format;
forward->dmabuf_formats[forward->dmabuf_formats_len].modifier_lo = modifier_lo;
forward->dmabuf_formats[forward->dmabuf_formats_len].modifier_hi = modifier_hi;
forward->dmabuf_formats_len++;
}
}
static const struct zwp_linux_dmabuf_v1_listener linux_dmabuf_listener = {
.format = linux_dmabuf_handle_format,
.modifier = linux_dmabuf_handle_modifier,
};
static void dmabuf_feedback_done(void *data,
struct zwp_linux_dmabuf_feedback_v1 *zwp_linux_dmabuf_feedback_v1) {
/* cleanup outdated tranches */
struct forward_state *forward = data;
for (size_t i = 0; i < forward->current.tranches_len; i++) {
wl_array_release(&forward->current.tranches[i].indices);
}
free(forward->current.tranches);
if (forward->current.table_fd != -1) {
close(forward->current.table_fd);
}
forward->current = forward->pending;
/* reset pending, keeping last main_device/table_fd values */
forward->pending.tranches = NULL;
forward->pending.tranches_len = 0;
if (forward->current.table_fd != -1) {
forward->pending.table_fd = dup(forward->current.table_fd);
if (!set_cloexec(forward->pending.table_fd)) {
swaylock_log(LOG_ERROR, "Failed to set cloexec for dmabuf fd");
}
}
/* notify all the client's feedback objects */
struct wl_resource *resource;
wl_resource_for_each(resource, &forward->feedback_instances) {
send_dmabuf_feedback_data(resource, &forward->current);
}
}
static void dmabuf_feedback_format_table(void *data,
struct zwp_linux_dmabuf_feedback_v1 *zwp_linux_dmabuf_feedback_v1,
int32_t fd, uint32_t size) {
struct forward_state *forward = data;
if (forward->pending.table_fd != -1) {
close(forward->pending.table_fd);
}
forward->pending.table_fd = fd;
forward->pending.table_fd_size = size;
}
static void dmabuf_feedback_main_device(void *data,
struct zwp_linux_dmabuf_feedback_v1 *zwp_linux_dmabuf_feedback_v1,
struct wl_array *device) {
struct forward_state *forward = data;
memcpy(&forward->pending.main_device, device->data, sizeof(forward->pending.main_device));
}
static void dmabuf_feedback_tranche_done(void *data,
struct zwp_linux_dmabuf_feedback_v1 *zwp_linux_dmabuf_feedback_v1) {
struct forward_state *forward = data;
struct feedback_tranche *new_tranches = realloc(forward->pending.tranches, sizeof(struct feedback_tranche) * (forward->pending.tranches_len + 1));
if (!new_tranches) {
swaylock_log(LOG_ERROR, "failed to expand tranche list");
return;
}
forward->pending.tranches = new_tranches;
forward->pending.tranches[forward->pending.tranches_len] = forward->pending_tranche;
forward->pending.tranches_len++;
/* reset the pending tranche state */
memset(&forward->pending_tranche.tranche_device, 0, sizeof(dev_t));
wl_array_init(&forward->pending_tranche.indices);
forward->pending_tranche.flags = 0;
}
static void dmabuf_feedback_tranche_target_device(void *data,
struct zwp_linux_dmabuf_feedback_v1 *zwp_linux_dmabuf_feedback_v1,
struct wl_array *device) {
struct forward_state *forward = data;
memcpy(&forward->pending_tranche.tranche_device, device->data, sizeof(forward->pending_tranche.tranche_device));
}
static void dmabuf_feedback_tranche_formats(void *data,
struct zwp_linux_dmabuf_feedback_v1 *zwp_linux_dmabuf_feedback_v1,
struct wl_array *indices) {
struct forward_state *forward = data;
if (wl_array_copy(&forward->pending_tranche.indices, indices) == -1) {
swaylock_log(LOG_ERROR, "failed to copy tranche format list");
}
}
static void dmabuf_feedback_tranche_flags(void *data,
struct zwp_linux_dmabuf_feedback_v1 *zwp_linux_dmabuf_feedback_v1,
uint32_t flags) {
struct forward_state *forward = data;
forward->pending_tranche.flags = flags;
}
static const struct zwp_linux_dmabuf_feedback_v1_listener dmabuf_feedback_listener = {
.done = dmabuf_feedback_done,
.format_table = dmabuf_feedback_format_table,
.main_device = dmabuf_feedback_main_device,
.tranche_done = dmabuf_feedback_tranche_done,
.tranche_target_device = dmabuf_feedback_tranche_target_device,
.tranche_formats = dmabuf_feedback_tranche_formats,
.tranche_flags = dmabuf_feedback_tranche_flags,
};
static void handle_global(void *data, struct wl_registry *registry,
uint32_t name, const char *interface, uint32_t version) {
struct swaylock_state *state = data;
if (strcmp(interface, wl_compositor_interface.name) == 0) {
/* version 5 required for wl_surface::offset */
state->compositor = wl_registry_bind(registry, name,
&wl_compositor_interface, version >= 5 ? 5 : 4);
state->forward.compositor = state->compositor;
} else if (strcmp(interface, wl_subcompositor_interface.name) == 0) {
state->subcompositor = wl_registry_bind(registry, name,
&wl_subcompositor_interface, 1);
} else if (strcmp(interface, wl_shm_interface.name) == 0) {
state->shm = wl_registry_bind(registry, name,
&wl_shm_interface, 1);
state->forward.shm = state->shm;
wl_shm_add_listener(state->shm, &shm_listener, &state->forward);
} else if (strcmp(interface, zwp_linux_dmabuf_v1_interface.name) == 0 && version >= 3) {
/* ^^ version >= 3 is needed to acquire the modifier list in some form */
/* this instance is used to route forwarded requests/events through */
state->forward.linux_dmabuf = wl_registry_bind(
registry, name, &zwp_linux_dmabuf_v1_interface, version >= 4 ? 4 : version);
zwp_linux_dmabuf_v1_add_listener(state->forward.linux_dmabuf, &linux_dmabuf_listener, &state->forward);
if (version >= 4) {
state->dmabuf_default_feedback = zwp_linux_dmabuf_v1_get_default_feedback(state->forward.linux_dmabuf);
zwp_linux_dmabuf_feedback_v1_add_listener(state->dmabuf_default_feedback, &dmabuf_feedback_listener, &state->forward);
memset(&state->forward.pending, 0, sizeof(state->forward.pending));
memset(&state->forward.current, 0, sizeof(state->forward.current));
state->forward.pending.table_fd = -1;
state->forward.current.table_fd = -1;
}
} else if (strcmp(interface, wl_drm_interface.name) == 0) {
state->forward.drm = wl_registry_bind(registry, name,
&wl_drm_interface, 2);
} else if (strcmp(interface, wl_seat_interface.name) == 0) {
struct wl_seat *seat = wl_registry_bind(
registry, name, &wl_seat_interface, 4);
struct swaylock_seat *swaylock_seat =
calloc(1, sizeof(struct swaylock_seat));
swaylock_seat->state = state;
wl_seat_add_listener(seat, &seat_listener, swaylock_seat);
} else if (strcmp(interface, wl_output_interface.name) == 0) {
struct swaylock_surface *surface =
calloc(1, sizeof(struct swaylock_surface));
surface->state = state;
/* version 4 needed to learn name/description */
surface->output = wl_registry_bind(registry, name,
&wl_output_interface, 4);
surface->output_global_name = name;
wl_output_add_listener(surface->output, &_wl_output_listener, surface);
wl_list_insert(&state->surfaces, &surface->link);
wl_list_init(&surface->nested_server_wl_output_resources);
wl_list_init(&surface->nested_server_xdg_output_resources);
} else if (strcmp(interface, ext_session_lock_manager_v1_interface.name) == 0) {
state->ext_session_lock_manager_v1 = wl_registry_bind(registry, name,
&ext_session_lock_manager_v1_interface, 1);
}
}
static void handle_global_remove(void *data, struct wl_registry *registry,
uint32_t name) {
struct swaylock_state *state = data;
struct swaylock_surface *surface;
wl_list_for_each(surface, &state->surfaces, link) {
if (surface->output_global_name == name) {
destroy_surface(surface);
break;
}
}
}
static const struct wl_registry_listener registry_listener = {
.global = handle_global,
.global_remove = handle_global_remove,
};
static int sigusr_fds[2] = {-1, -1};
void do_sigusr(int sig) {
(void)write(sigusr_fds[1], "1", 1);
}
static cairo_surface_t *select_image(struct swaylock_state *state,
struct swaylock_surface *surface) {
struct swaylock_image *image;
cairo_surface_t *default_image = NULL;
wl_list_for_each(image, &state->images, link) {
if (lenient_strcmp(image->output_name, surface->output_name) == 0) {
return image->cairo_surface;
} else if (!image->output_name) {
default_image = image->cairo_surface;
}
}
return default_image;
}
static char *join_args(char **argv, int argc) {
assert(argc > 0);
int len = 0, i;
for (i = 0; i < argc; ++i) {
len += strlen(argv[i]) + 1;
}
char *res = malloc(len);
len = 0;
for (i = 0; i < argc; ++i) {
strcpy(res + len, argv[i]);
len += strlen(argv[i]);
res[len++] = ' ';
}
res[len - 1] = '\0';
return res;
}
static void load_image(char *arg, struct swaylock_state *state) {
// [[<output>]:]<path>
struct swaylock_image *image = calloc(1, sizeof(struct swaylock_image));
char *separator = strchr(arg, ':');
if (separator) {
*separator = '\0';
image->output_name = separator == arg ? NULL : strdup(arg);
image->path = strdup(separator + 1);
} else {
image->output_name = NULL;
image->path = strdup(arg);
}
struct swaylock_image *iter_image, *temp;
wl_list_for_each_safe(iter_image, temp, &state->images, link) {
if (lenient_strcmp(iter_image->output_name, image->output_name) == 0) {
if (image->output_name) {
swaylock_log(LOG_DEBUG,
"Replacing image defined for output %s with %s",
image->output_name, image->path);
} else {
swaylock_log(LOG_DEBUG, "Replacing default image with %s",
image->path);
}
wl_list_remove(&iter_image->link);
free(iter_image->cairo_surface);
free(iter_image->output_name);
free(iter_image->path);
free(iter_image);
break;
}
}
// The shell will not expand ~ to the value of $HOME when an output name is
// given. Also, any image paths given in the config file need to have shell
// expansions performed
wordexp_t p;
while (strstr(image->path, " ")) {
image->path = realloc(image->path, strlen(image->path) + 2);
char *ptr = strstr(image->path, " ") + 1;
memmove(ptr + 1, ptr, strlen(ptr) + 1);
*ptr = '\\';
}
if (wordexp(image->path, &p, 0) == 0) {
free(image->path);
image->path = join_args(p.we_wordv, p.we_wordc);
wordfree(&p);
}
// Load the actual image
image->cairo_surface = load_background_image(image->path);
if (!image->cairo_surface) {
free(image);
return;
}
wl_list_insert(&state->images, &image->link);
swaylock_log(LOG_DEBUG, "Loaded image %s for output %s", image->path,
image->output_name ? image->output_name : "*");
}
static void set_default_colors(struct swaylock_colors *colors) {
colors->background = 0xFFFFFFFF;
colors->bs_highlight = 0xDB3300FF;
colors->key_highlight = 0x33DB00FF;
colors->caps_lock_bs_highlight = 0xDB3300FF;
colors->caps_lock_key_highlight = 0x33DB00FF;
colors->separator = 0x000000FF;
colors->layout_background = 0x000000C0;
colors->layout_border = 0x00000000;
colors->layout_text = 0xFFFFFFFF;
colors->inside = (struct swaylock_colorset){
.input = 0x000000C0,
.cleared = 0xE5A445C0,
.caps_lock = 0x000000C0,
.verifying = 0x0072FFC0,
.wrong = 0xFA0000C0,
};
colors->line = (struct swaylock_colorset){
.input = 0x000000FF,
.cleared = 0x000000FF,
.caps_lock = 0x000000FF,
.verifying = 0x000000FF,
.wrong = 0x000000FF,
};
colors->ring = (struct swaylock_colorset){
.input = 0x337D00FF,
.cleared = 0xE5A445FF,
.caps_lock = 0xE5A445FF,
.verifying = 0x3300FFFF,
.wrong = 0x7D3300FF,
};
colors->text = (struct swaylock_colorset){
.input = 0xE5A445FF,
.cleared = 0x000000FF,
.caps_lock = 0xE5A445FF,
.verifying = 0x000000FF,
.wrong = 0x000000FF,
};
}
enum line_mode {
LM_LINE,
LM_INSIDE,
LM_RING,
};
static int parse_options(int argc, char **argv, struct swaylock_state *state,
enum line_mode *line_mode, char **config_path) {
enum long_option_codes {
LO_BS_HL_COLOR = 256,
LO_CAPS_LOCK_BS_HL_COLOR,
LO_CAPS_LOCK_KEY_HL_COLOR,
LO_FONT,
LO_FONT_SIZE,
LO_IND_IDLE_VISIBLE,
LO_IND_RADIUS,
LO_IND_X_POSITION,
LO_IND_Y_POSITION,
LO_IND_THICKNESS,
LO_INSIDE_COLOR,
LO_INSIDE_CLEAR_COLOR,
LO_INSIDE_CAPS_LOCK_COLOR,
LO_INSIDE_VER_COLOR,
LO_INSIDE_WRONG_COLOR,
LO_KEY_HL_COLOR,
LO_LAYOUT_TXT_COLOR,
LO_LAYOUT_BG_COLOR,
LO_LAYOUT_BORDER_COLOR,
LO_LINE_COLOR,
LO_LINE_CLEAR_COLOR,
LO_LINE_CAPS_LOCK_COLOR,
LO_LINE_VER_COLOR,
LO_LINE_WRONG_COLOR,
LO_RING_COLOR,
LO_RING_CLEAR_COLOR,
LO_RING_CAPS_LOCK_COLOR,
LO_RING_VER_COLOR,
LO_RING_WRONG_COLOR,
LO_SEP_COLOR,
LO_TEXT_COLOR,
LO_TEXT_CLEAR_COLOR,
LO_TEXT_CAPS_LOCK_COLOR,
LO_TEXT_VER_COLOR,
LO_TEXT_WRONG_COLOR,
LO_PLUGIN_COMMAND,
LO_PLUGIN_COMMAND_EACH,
};
static struct option long_options[] = {
{"config", required_argument, NULL, 'C'},
{"color", required_argument, NULL, 'c'},
{"debug", no_argument, NULL, 'd'},
{"ignore-empty-password", no_argument, NULL, 'e'},
{"daemonize", no_argument, NULL, 'f'},
{"ready-fd", required_argument, NULL, 'R'},
{"help", no_argument, NULL, 'h'},
{"image", required_argument, NULL, 'i'},
{"disable-caps-lock-text", no_argument, NULL, 'L'},
{"indicator-caps-lock", no_argument, NULL, 'l'},
{"line-uses-inside", no_argument, NULL, 'n'},
{"line-uses-ring", no_argument, NULL, 'r'},
{"scaling", required_argument, NULL, 's'},
{"tiling", no_argument, NULL, 't'},
{"no-unlock-indicator", no_argument, NULL, 'u'},
{"show-keyboard-layout", no_argument, NULL, 'k'},
{"hide-keyboard-layout", no_argument, NULL, 'K'},
{"show-failed-attempts", no_argument, NULL, 'F'},
{"version", no_argument, NULL, 'v'},
{"bs-hl-color", required_argument, NULL, LO_BS_HL_COLOR},
{"caps-lock-bs-hl-color", required_argument, NULL, LO_CAPS_LOCK_BS_HL_COLOR},
{"caps-lock-key-hl-color", required_argument, NULL, LO_CAPS_LOCK_KEY_HL_COLOR},
{"font", required_argument, NULL, LO_FONT},
{"font-size", required_argument, NULL, LO_FONT_SIZE},
{"indicator-idle-visible", no_argument, NULL, LO_IND_IDLE_VISIBLE},
{"indicator-radius", required_argument, NULL, LO_IND_RADIUS},
{"indicator-thickness", required_argument, NULL, LO_IND_THICKNESS},
{"indicator-x-position", required_argument, NULL, LO_IND_X_POSITION},
{"indicator-y-position", required_argument, NULL, LO_IND_Y_POSITION},
{"inside-color", required_argument, NULL, LO_INSIDE_COLOR},
{"inside-clear-color", required_argument, NULL, LO_INSIDE_CLEAR_COLOR},
{"inside-caps-lock-color", required_argument, NULL, LO_INSIDE_CAPS_LOCK_COLOR},
{"inside-ver-color", required_argument, NULL, LO_INSIDE_VER_COLOR},
{"inside-wrong-color", required_argument, NULL, LO_INSIDE_WRONG_COLOR},
{"key-hl-color", required_argument, NULL, LO_KEY_HL_COLOR},
{"layout-bg-color", required_argument, NULL, LO_LAYOUT_BG_COLOR},
{"layout-border-color", required_argument, NULL, LO_LAYOUT_BORDER_COLOR},
{"layout-text-color", required_argument, NULL, LO_LAYOUT_TXT_COLOR},
{"line-color", required_argument, NULL, LO_LINE_COLOR},
{"line-clear-color", required_argument, NULL, LO_LINE_CLEAR_COLOR},
{"line-caps-lock-color", required_argument, NULL, LO_LINE_CAPS_LOCK_COLOR},
{"line-ver-color", required_argument, NULL, LO_LINE_VER_COLOR},
{"line-wrong-color", required_argument, NULL, LO_LINE_WRONG_COLOR},
{"ring-color", required_argument, NULL, LO_RING_COLOR},
{"ring-clear-color", required_argument, NULL, LO_RING_CLEAR_COLOR},
{"ring-caps-lock-color", required_argument, NULL, LO_RING_CAPS_LOCK_COLOR},
{"ring-ver-color", required_argument, NULL, LO_RING_VER_COLOR},
{"ring-wrong-color", required_argument, NULL, LO_RING_WRONG_COLOR},
{"separator-color", required_argument, NULL, LO_SEP_COLOR},
{"text-color", required_argument, NULL, LO_TEXT_COLOR},
{"text-clear-color", required_argument, NULL, LO_TEXT_CLEAR_COLOR},
{"text-caps-lock-color", required_argument, NULL, LO_TEXT_CAPS_LOCK_COLOR},
{"text-ver-color", required_argument, NULL, LO_TEXT_VER_COLOR},
{"text-wrong-color", required_argument, NULL, LO_TEXT_WRONG_COLOR},
{"command", required_argument, NULL, LO_PLUGIN_COMMAND},
{"command-each", required_argument, NULL, LO_PLUGIN_COMMAND_EACH},
{0, 0, 0, 0}
};
const char usage[] =
"Usage: swaylock [options...]\n"
"\n"
" -C, --config <config_file> "
"Path to the config file.\n"
" -c, --color <color> "
"Turn the screen into the given color instead of white.\n"
" -d, --debug "
"Enable debugging output.\n"
" -e, --ignore-empty-password "
"When an empty password is provided, do not validate it.\n"
" -F, --show-failed-attempts "
"Show current count of failed authentication attempts.\n"
" -f, --daemonize "
"Detach from the controlling terminal after locking.\n"
" -R, --ready-fd <fd> "
"File descriptor to send readiness notifications to.\n"
" -h, --help "
"Show help message and quit.\n"
" -i, --image [[<output>]:]<path> "
"Display the given image, optionally only on the given output.\n"
" -k, --show-keyboard-layout "
"Display the current xkb layout while typing.\n"
" -K, --hide-keyboard-layout "
"Hide the current xkb layout while typing.\n"
" -L, --disable-caps-lock-text "
"Disable the Caps Lock text.\n"
" -l, --indicator-caps-lock "
"Show the current Caps Lock state also on the indicator.\n"
" -s, --scaling <mode> "
"Image scaling mode: stretch, fill, fit, center, tile, solid_color.\n"
" -t, --tiling "
"Same as --scaling=tile.\n"
" -u, --no-unlock-indicator "
"Disable the unlock indicator.\n"
" -v, --version "
"Show the version number and quit.\n"
" --bs-hl-color <color> "
"Sets the color of backspace highlight segments.\n"
" --caps-lock-bs-hl-color <color> "
"Sets the color of backspace highlight segments when Caps Lock "
"is active.\n"
" --caps-lock-key-hl-color <color> "
"Sets the color of the key press highlight segments when "
"Caps Lock is active.\n"
" --font <font> "
"Sets the font of the text.\n"
" --font-size <size> "
"Sets a fixed font size for the indicator text.\n"
" --indicator-idle-visible "
"Sets the indicator to show even if idle.\n"
" --indicator-radius <radius> "
"Sets the indicator radius.\n"
" --indicator-thickness <thick> "
"Sets the indicator thickness.\n"
" --indicator-x-position <x> "
"Sets the horizontal position of the indicator.\n"
" --indicator-y-position <y> "
"Sets the vertical position of the indicator.\n"
" --inside-color <color> "
"Sets the color of the inside of the indicator.\n"
" --inside-clear-color <color> "
"Sets the color of the inside of the indicator when cleared.\n"
" --inside-caps-lock-color <color> "
"Sets the color of the inside of the indicator when Caps Lock "
"is active.\n"
" --inside-ver-color <color> "
"Sets the color of the inside of the indicator when verifying.\n"
" --inside-wrong-color <color> "
"Sets the color of the inside of the indicator when invalid.\n"
" --key-hl-color <color> "
"Sets the color of the key press highlight segments.\n"
" --layout-bg-color <color> "
"Sets the background color of the box containing the layout text.\n"
" --layout-border-color <color> "
"Sets the color of the border of the box containing the layout text.\n"
" --layout-text-color <color> "
"Sets the color of the layout text.\n"
" --line-color <color> "
"Sets the color of the line between the inside and ring.\n"
" --line-clear-color <color> "
"Sets the color of the line between the inside and ring when "