forked from luakit/luakit
/
luakit.c
193 lines (163 loc) · 5.89 KB
/
luakit.c
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/*
* luakit.c - luakit main functions
*
* Copyright © 2010-2011 Mason Larobina <mason.larobina@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "globalconf.h"
#include "common/util.h"
#include "luah.h"
#include <gtk/gtk.h>
#include <signal.h>
#include <stdlib.h>
#include <sys/wait.h>
#include <unistd.h>
#include <errno.h>
#include <locale.h>
static void sigchld(int sigint);
void
sigchld(int UNUSED(signum)) {
while(0 < waitpid(-1, NULL, WNOHANG));
}
void
init_lua(gchar **uris)
{
gchar *uri;
lua_State *L;
/* init globalconf structs */
globalconf.windows = g_ptr_array_new();
/* init lua */
luaH_init();
L = globalconf.L;
/* push a table of the statup uris */
lua_newtable(L);
for (gint i = 0; uris && (uri = uris[i]); i++) {
lua_pushstring(L, uri);
lua_rawseti(L, -2, i + 1);
}
lua_setglobal(L, "uris");
}
void
init_directories(void)
{
/* create luakit directory */
globalconf.cache_dir = g_build_filename(g_get_user_cache_dir(), "luakit", NULL);
globalconf.config_dir = g_build_filename(g_get_user_config_dir(), "luakit", NULL);
globalconf.data_dir = g_build_filename(g_get_user_data_dir(), "luakit", NULL);
g_mkdir_with_parents(globalconf.cache_dir, 0771);
g_mkdir_with_parents(globalconf.config_dir, 0771);
g_mkdir_with_parents(globalconf.data_dir, 0771);
}
/* load command line options into luakit and return uris to load */
gchar**
parseopts(int *argc, gchar *argv[], gboolean **nonblock) {
GOptionContext *context;
gboolean *version_only = NULL;
gboolean *check_only = NULL;
gchar **uris = NULL;
/* save luakit exec path */
globalconf.execpath = g_strdup(argv[0]);
globalconf.nounique = FALSE;
/* define command line options */
const GOptionEntry entries[] = {
{ "check", 'k', 0, G_OPTION_ARG_NONE, &check_only, "check config and exit", NULL },
{ "config", 'c', 0, G_OPTION_ARG_STRING, &globalconf.confpath, "configuration file to use", "FILE" },
{ "nonblock", 'n', 0, G_OPTION_ARG_NONE, nonblock, "run in background", NULL },
{ "nounique", 'U', 0, G_OPTION_ARG_NONE, &globalconf.nounique, "ignore libunique bindings", NULL },
{ "uri", 'u', 0, G_OPTION_ARG_STRING_ARRAY, &uris, "uri(s) to load at startup", "URI" },
{ "verbose", 'v', 0, G_OPTION_ARG_NONE, &globalconf.verbose, "print debugging output", NULL },
{ "version", 'V', 0, G_OPTION_ARG_NONE, &version_only, "print version and exit", NULL },
{ NULL, 0, 0, 0, NULL, NULL, NULL },
};
/* parse command line options */
context = g_option_context_new("[URI...]");
g_option_context_add_main_entries(context, entries, NULL);
g_option_context_add_group(context, gtk_get_option_group(FALSE));
g_option_context_parse(context, argc, &argv, NULL);
g_option_context_free(context);
/* print version and exit */
if (version_only) {
g_printf("luakit %s\n", VERSION);
exit(EXIT_SUCCESS);
}
/* check config syntax and exit */
if (check_only) {
init_directories();
init_lua(NULL);
if (!luaH_parserc(globalconf.confpath, FALSE)) {
g_fprintf(stderr, "Confiuration file syntax error.\n");
exit(EXIT_FAILURE);
} else {
g_fprintf(stderr, "Configuration file syntax OK.\n");
exit(EXIT_SUCCESS);
}
}
if (uris && argv[1])
fatal("invalid mix of -u and default uri arguments");
if (uris)
return uris;
else
return argv+1;
}
gint
main(gint argc, gchar *argv[]) {
gboolean *nonblock = NULL;
gchar **uris = NULL;
pid_t pid, sid;
globalconf.starttime = l_time();
/* clean up any zombies */
struct sigaction sigact;
sigact.sa_handler=sigchld;
sigemptyset (&sigact.sa_mask);
sigact.sa_flags = SA_NOCLDSTOP;
if (sigaction(SIGCHLD, &sigact, NULL))
fatal("Can't install SIGCHLD handler");
/* set numeric locale to C (required for compatibility with
LuaJIT and luakit scripts) */
gtk_set_locale();
gtk_disable_setlocale();
setlocale(LC_NUMERIC, "C");
/* parse command line opts and get uris to load */
uris = parseopts(&argc, argv, &nonblock);
/* if non block mode - respawn, detach and continue in child */
if (nonblock) {
pid = fork();
if (pid < 0) {
fatal("Cannot fork: %d", errno);
} else if (pid > 0) {
exit(EXIT_SUCCESS);
}
sid = setsid();
if (sid < 0) {
fatal("New SID creation failure: %d", errno);
}
}
gtk_init(&argc, &argv);
init_directories();
init_lua(uris);
/* hide command line parameters so process lists don't leak (possibly
confidential) URLs */
for (gint i = 1; i < argc; i++)
memset(argv[i], 0, strlen(argv[i]));
/* parse and run configuration file */
if(!luaH_parserc(globalconf.confpath, TRUE))
fatal("couldn't find rc file");
if (!globalconf.windows->len)
fatal("no windows spawned by rc file, exiting");
gtk_main();
return EXIT_SUCCESS;
}
// vim: ft=c:et:sw=4:ts=8:sts=4:tw=80