/// Setup our environment (e.g., tty modes), process key strokes, then reset the environment.
static void setup_and_process_keys(bool continuous_mode) {
is_interactive_session = 1; // by definition this program is interactive
set_main_thread();
setup_fork_guards();
proc_push_interactive(1);
env_init();
reader_init();
// We need to set the shell-modes for ICRNL,
// in fish-proper this is done once a command is run.
tcsetattr(STDIN_FILENO, TCSANOW, &shell_modes);
install_our_signal_handlers();
if (continuous_mode) {
std::fwprintf(stderr, L"\n");
std::fwprintf(stderr,
L"To terminate this program type \"exit\" or \"quit\" in this window,\n");
std::fwprintf(stderr, L"or press [ctrl-%c] or [ctrl-%c] twice in a row.\n",
shell_modes.c_cc[VINTR] + 0x40, shell_modes.c_cc[VEOF] + 0x40);
std::fwprintf(stderr, L"\n");
}
process_input(continuous_mode);
restore_term_mode();
restore_term_foreground_process_group();
}
/// Setup our environment (e.g., tty modes), process key strokes, then reset the environment.
void setup_and_process_keys(bool continuous_mode) {
is_interactive_session = 1; // by definition this is interactive
set_main_thread();
setup_fork_guards();
wsetlocale(LC_ALL, L"POSIX");
program_name = L"fish_key_reader";
env_init();
reader_init();
input_init();
// Installing our handler for every signal (e.g., SIGSEGV) is dubious because it means that
// signals that might generate a core dump will not do so. On the other hand this allows us
// to restore the tty modes so the terminal is still usable when we die.
for (int signo = 1; signo < 32; signo++) {
signal(signo, signal_handler);
}
if (continuous_mode) {
printf("\n");
printf("Type 'exit' or 'quit' to terminate this program.\n");
printf("\n");
printf("Characters such as [ctrl-D] (EOF) and [ctrl-C] (interrupt)\n");
printf("have no special meaning and will not terminate this program.\n");
printf("\n");
} else {
set_wait_on_escape_ms(500);
}
// TODO: We really should enable keypad mode but see issue #838.
process_input(continuous_mode);
restore_term_mode();
}
/// Setup our environment (e.g., tty modes), process key strokes, then reset the environment.
static void setup_and_process_keys(bool continuous_mode) {
is_interactive_session = 1; // by definition this program is interactive
setenv("LC_ALL", "POSIX", 1); // ensure we're in a single-byte locale
set_main_thread();
setup_fork_guards();
env_init();
reader_init();
input_init();
proc_push_interactive(1);
signal_set_handlers();
install_our_signal_handlers();
if (continuous_mode) {
printf("\n");
printf("To terminate this program type \"exit\" or \"quit\" in this window,\n");
printf("or press [ctrl-C] or [ctrl-D] twice in a row.\n");
printf("\n");
}
process_input(continuous_mode);
restore_term_mode();
restore_term_foreground_process_group();
input_destroy();
reader_destroy();
}
/// This function is similar to launch_process, except it is not called after a fork (i.e. it only
/// calls exec) and therefore it can allocate memory.
static void launch_process_nofork(process_t *p) {
ASSERT_IS_MAIN_THREAD();
ASSERT_IS_NOT_FORKED_CHILD();
null_terminated_array_t<char> argv_array;
convert_wide_array_to_narrow(p->get_argv_array(), &argv_array);
const char *const *envv = env_export_arr();
char *actual_cmd = wcs2str(p->actual_cmd);
// Ensure the terminal modes are what they were before we changed them.
restore_term_mode();
// Bounce to launch_process. This never returns.
safe_launch_process(p, actual_cmd, argv_array.get(), envv);
}
/// Make sure we cleanup before exiting if we're signaled.
void signal_handler(int signo) {
printf("\nExiting on receipt of signal #%d\n", signo);
restore_term_mode();
exit(1);
}
int main(int argc, char **argv) {
int res = 1;
int my_optind = 0;
program_name = L"fish";
set_main_thread();
setup_fork_guards();
signal_unblock_all();
setlocale(LC_ALL, "");
fish_setlocale();
// struct stat tmp;
// stat("----------FISH_HIT_MAIN----------", &tmp);
if (!argv[0]) {
static const char *dummy_argv[2] = {"fish", NULL};
argv = (char **)dummy_argv; //!OCLINT(parameter reassignment)
argc = 1; //!OCLINT(parameter reassignment)
}
fish_cmd_opts_t opts;
my_optind = fish_parse_opt(argc, argv, &opts);
// No-exec is prohibited when in interactive mode.
if (is_interactive_session && no_exec) {
debug(1, _(L"Can not use the no-execute mode when running an interactive session"));
no_exec = 0;
}
// Only save (and therefore restore) the fg process group if we are interactive. See issues
// #197 and #1002.
if (is_interactive_session) {
save_term_foreground_process_group();
}
const struct config_paths_t paths = determine_config_directory_paths(argv[0]);
env_init(&paths);
// Set features early in case other initialization depends on them.
// Start with the ones set in the environment, then those set on the command line (so the
// command line takes precedence).
if (auto features_var = env_get(L"fish_features")) {
for (const wcstring &s : features_var->as_list()) {
mutable_fish_features().set_from_string(s);
}
}
mutable_fish_features().set_from_string(opts.features);
proc_init();
builtin_init();
misc_init();
reader_init();
parser_t &parser = parser_t::principal_parser();
const io_chain_t empty_ios;
if (read_init(paths)) {
// Stomp the exit status of any initialization commands (issue #635).
proc_set_last_status(STATUS_CMD_OK);
// Run post-config commands specified as arguments, if any.
if (!opts.postconfig_cmds.empty()) {
res = run_command_list(&opts.postconfig_cmds, empty_ios);
}
if (!opts.batch_cmds.empty()) {
// Run the commands specified as arguments, if any.
if (is_login) {
// Do something nasty to support OpenSUSE assuming we're bash. This may modify cmds.
fish_xdm_login_hack_hack_hack_hack(&opts.batch_cmds, argc - my_optind,
argv + my_optind);
}
res = run_command_list(&opts.batch_cmds, empty_ios);
reader_exit(0, 0);
} else if (my_optind == argc) {
// Implicitly interactive mode.
res = reader_read(STDIN_FILENO, empty_ios);
} else {
char *file = *(argv + (my_optind++));
int fd = open(file, O_RDONLY);
if (fd == -1) {
perror(file);
} else {
// OK to not do this atomically since we cannot have gone multithreaded yet.
set_cloexec(fd);
wcstring_list_t list;
for (char **ptr = argv + my_optind; *ptr; ptr++) {
list.push_back(str2wcstring(*ptr));
}
env_set(L"argv", ENV_DEFAULT, list);
const wcstring rel_filename = str2wcstring(file);
reader_push_current_filename(rel_filename.c_str());
res = reader_read(fd, empty_ios);
if (res) {
debug(1, _(L"Error while reading file %ls\n"),
reader_current_filename() ? reader_current_filename()
: _(L"Standard input"));
}
reader_pop_current_filename();
}
}
}
int exit_status = res ? STATUS_CMD_UNKNOWN : proc_get_last_status();
// TODO: The generic process-exit event is useless and unused.
// Remove this in future.
proc_fire_event(L"PROCESS_EXIT", EVENT_EXIT, getpid(), exit_status);
event_fire_generic(L"fish_exit");
restore_term_mode();
restore_term_foreground_process_group();
if (g_profiling_active) {
parser.emit_profiling(s_profiling_output_filename);
}
history_save_all();
proc_destroy();
exit_without_destructors(exit_status);
return EXIT_FAILURE; // above line should always exit
}
int main(int argc, char **argv)
{
int res=1;
int my_optind=0;
set_main_thread();
setup_fork_guards();
wsetlocale(LC_ALL, L"");
is_interactive_session=1;
program_name=L"fish";
//struct stat tmp;
//stat("----------FISH_HIT_MAIN----------", &tmp);
std::vector<std::string> cmds;
my_optind = fish_parse_opt(argc, argv, &cmds);
/*
No-exec is prohibited when in interactive mode
*/
if (is_interactive_session && no_exec)
{
debug(1, _(L"Can not use the no-execute mode when running an interactive session"));
no_exec = 0;
}
/* Only save (and therefore restore) the fg process group if we are interactive. See #197, #1002 */
if (is_interactive_session)
{
save_term_foreground_process_group();
}
const struct config_paths_t paths = determine_config_directory_paths(argv[0]);
proc_init();
event_init();
wutil_init();
builtin_init();
function_init();
env_init(&paths);
reader_init();
history_init();
/* For setcolor to support term256 in config.fish (#1022) */
update_fish_term256();
parser_t &parser = parser_t::principal_parser();
if (g_log_forks)
printf("%d: g_fork_count: %d\n", __LINE__, g_fork_count);
const io_chain_t empty_ios;
if (read_init(paths))
{
/* Stop the exit status of any initialization commands (#635) */
proc_set_last_status(STATUS_BUILTIN_OK);
/* Run the commands specified as arguments, if any */
if (! cmds.empty())
{
/* Do something nasty to support OpenSUSE assuming we're bash. This may modify cmds. */
if (is_login)
{
fish_xdm_login_hack_hack_hack_hack(&cmds, argc - my_optind, argv + my_optind);
}
for (size_t i=0; i < cmds.size(); i++)
{
const wcstring cmd_wcs = str2wcstring(cmds.at(i));
res = parser.eval(cmd_wcs, empty_ios, TOP);
}
reader_exit(0, 0);
}
else
{
if (my_optind == argc)
{
res = reader_read(STDIN_FILENO, empty_ios);
}
else
{
char **ptr;
char *file = *(argv+(my_optind++));
int i;
int fd;
if ((fd = open(file, O_RDONLY)) == -1)
{
wperror(L"open");
return 1;
}
// OK to not do this atomically since we cannot have gone multithreaded yet
set_cloexec(fd);
if (*(argv+my_optind))
{
wcstring sb;
for (i=1,ptr = argv+my_optind; *ptr; i++, ptr++)
{
if (i != 1)
sb.append(ARRAY_SEP_STR);
sb.append(str2wcstring(*ptr));
}
env_set(L"argv", sb.c_str(), 0);
}
const wcstring rel_filename = str2wcstring(file);
const wchar_t *abs_filename = wrealpath(rel_filename, NULL);
if (!abs_filename)
{
abs_filename = wcsdup(rel_filename.c_str());
}
reader_push_current_filename(intern(abs_filename));
free((void *)abs_filename);
res = reader_read(fd, empty_ios);
if (res)
{
debug(1,
_(L"Error while reading file %ls\n"),
reader_current_filename()?reader_current_filename(): _(L"Standard input"));
}
reader_pop_current_filename();
}
}
}
proc_fire_event(L"PROCESS_EXIT", EVENT_EXIT, getpid(), res);
restore_term_mode();
restore_term_foreground_process_group();
history_destroy();
proc_destroy();
builtin_destroy();
reader_destroy();
parser.destroy();
wutil_destroy();
event_destroy();
env_destroy();
if (g_log_forks)
printf("%d: g_fork_count: %d\n", __LINE__, g_fork_count);
exit_without_destructors(res ? STATUS_UNKNOWN_COMMAND : proc_get_last_status());
return EXIT_FAILURE; //above line should always exit
}
int main(int argc, char **argv) {
int res = 1;
int my_optind = 0;
program_name = L"fish";
set_main_thread();
setup_fork_guards();
setlocale(LC_ALL, "");
fish_setlocale();
// struct stat tmp;
// stat("----------FISH_HIT_MAIN----------", &tmp);
if (!argv[0]) {
static const char *dummy_argv[2] = {"fish", NULL};
argv = (char **)dummy_argv; //!OCLINT(parameter reassignment)
argc = 1; //!OCLINT(parameter reassignment)
}
std::vector<std::string> cmds;
my_optind = fish_parse_opt(argc, argv, &cmds);
// No-exec is prohibited when in interactive mode.
if (is_interactive_session && no_exec) {
debug(1, _(L"Can not use the no-execute mode when running an interactive session"));
no_exec = 0;
}
// Only save (and therefore restore) the fg process group if we are interactive. See issues
// #197 and #1002.
if (is_interactive_session) {
save_term_foreground_process_group();
}
const struct config_paths_t paths = determine_config_directory_paths(argv[0]);
proc_init();
event_init();
builtin_init();
function_init();
env_init(&paths);
reader_init();
history_init();
// For set_color to support term256 in config.fish (issue #1022).
update_fish_color_support();
misc_init();
parser_t &parser = parser_t::principal_parser();
const io_chain_t empty_ios;
if (read_init(paths)) {
// Stomp the exit status of any initialization commands (issue #635).
proc_set_last_status(STATUS_BUILTIN_OK);
// Run the commands specified as arguments, if any.
if (!cmds.empty()) {
// Do something nasty to support OpenSUSE assuming we're bash. This may modify cmds.
if (is_login) {
fish_xdm_login_hack_hack_hack_hack(&cmds, argc - my_optind, argv + my_optind);
}
for (size_t i = 0; i < cmds.size(); i++) {
const wcstring cmd_wcs = str2wcstring(cmds.at(i));
res = parser.eval(cmd_wcs, empty_ios, TOP);
}
reader_exit(0, 0);
} else if (my_optind == argc) {
// Interactive mode
check_running_fishd();
res = reader_read(STDIN_FILENO, empty_ios);
} else {
char *file = *(argv + (my_optind++));
int fd = open(file, O_RDONLY);
if (fd == -1) {
perror(file);
} else {
// OK to not do this atomically since we cannot have gone multithreaded yet.
set_cloexec(fd);
if (*(argv + my_optind)) {
wcstring sb;
char **ptr;
int i;
for (i = 1, ptr = argv + my_optind; *ptr; i++, ptr++) {
if (i != 1) sb.append(ARRAY_SEP_STR);
sb.append(str2wcstring(*ptr));
}
env_set(L"argv", sb.c_str(), 0);
}
const wcstring rel_filename = str2wcstring(file);
reader_push_current_filename(rel_filename.c_str());
res = reader_read(fd, empty_ios);
if (res) {
debug(1, _(L"Error while reading file %ls\n"), reader_current_filename()
? reader_current_filename()
: _(L"Standard input"));
}
reader_pop_current_filename();
}
}
}
int exit_status = res ? STATUS_UNKNOWN_COMMAND : proc_get_last_status();
proc_fire_event(L"PROCESS_EXIT", EVENT_EXIT, getpid(), exit_status);
restore_term_mode();
restore_term_foreground_process_group();
if (g_profiling_active) {
parser.emit_profiling(s_profiling_output_filename);
}
history_destroy();
proc_destroy();
builtin_destroy();
reader_destroy();
event_destroy();
exit_without_destructors(exit_status);
return EXIT_FAILURE; // above line should always exit
}
int main (int argc, const char * argv[])
{
struct termios saved_term_mode; /* saved entering terminal mode */
struct itimerval tbuf; /* interval timer structure */
struct sigaction action, nextAction; /* signal action structure */
struct sigaction temp; /* Used for swapping */
char input; /* The character input by user */
char* check; /* Used to check argv[1] */
if(argc != 2)
{
fprintf(stderr,"usage: %s <seconds>\n", argv[0]);
exit(-1);
}
/*
* Initialize ticks to 0.
*/
ticks = 1 + TICKS_PER_SECOND * (int)strtol(argv[1], &check, 10);
if(*check != '\0')
{
/* an error probably occurred */
fprintf(stderr, "%s: malformed time.\n", argv[1]);
fprintf(stderr,"usage: %s <seconds>\n", argv[0]);
exit(-1);
}
if(ticks < 0)
{
fprintf(stderr, "Invalid time(%s). Must be >= 0.\n", argv[1]);
fprintf(stderr,"usage: %s <seconds>\n", argv[0]);
exit(-1);
}
/*
* Set up the SIGALRM handler.
*/
action.sa_handler = tick; /* set tick to be the handler function */
sigemptyset(&action.sa_mask); /* clear out masked functions */
action.sa_flags = 0; /* no special handling */
nextAction = action;
nextAction.sa_handler = SIG_IGN;
/*
* Use the sigaction function to associate the signal action with SIGALRM.
*/
if (sigaction(SIGALRM, &action, NULL) < 0 )
{
perror("SIGALRM");
exit(-1);
}
/*
* Define a 1/25 second timer.
*/
tbuf.it_interval.tv_sec = 0;
tbuf.it_interval.tv_usec = MICROSEC / TICKS_PER_SECOND;
tbuf.it_value.tv_sec = 1;
tbuf.it_value.tv_usec = MICROSEC / TICKS_PER_SECOND;
/*
* Use the setitimer function to start the timer.
*/
if ( setitimer(ITIMER_REAL, &tbuf, NULL) == -1 )
{
perror("setitimer");
exit(-1); /* should only fail for serious reasons */
}
/*
* Set the terminal to raw mode.
*/
saved_term_mode = set_raw_term_mode();
/*
* Busy wait until the user types 'q'.
*/
while ((input = getchar()) != 'q')
{
if(ferror(stdin))
{
clearerr(stdin);
}
else
{
switch (input)
{
case 'c':
ticks = 0;
redraw();
break;
case 'r':
/* Start/stop running the timer */
if (sigaction(SIGALRM, &nextAction, &action) < 0 )
{
perror("SIGALRM");
exit(-1);
}
temp = nextAction;
nextAction = action;
action = temp;
redraw();
break;
case 'h':
ticks += TICKS_PER_SECOND * 60 * 60;
redraw();
break;
case 'H':
ticks -= TICKS_PER_SECOND * 60 * 60;
redraw();
break;
case 'm':
ticks += TICKS_PER_SECOND * 60;
redraw();
break;
case 'M':
ticks -= TICKS_PER_SECOND * 60;
redraw();
break;
case 's':
ticks += TICKS_PER_SECOND;
redraw();
break;
case 'S':
ticks -= TICKS_PER_SECOND;
redraw();
break;
case 't':
tick(SIGALRM);
break;
default:
/* Do nothing */
break;
}
}
}
/*
* Restore the terminal to the mode it was in at program entry.
*/
restore_term_mode(saved_term_mode);
return 0;
}