summaryrefslogtreecommitdiff
path: root/src/unix/system.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/unix/system.c')
-rw-r--r--src/unix/system.c492
1 files changed, 11 insertions, 481 deletions
diff --git a/src/unix/system.c b/src/unix/system.c
index 443eefa..0911627 100644
--- a/src/unix/system.c
+++ b/src/unix/system.c
@@ -20,26 +20,22 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "common/cmd.h"
#include "common/common.h"
#include "common/cvar.h"
-#include "common/field.h"
#include "common/files.h"
-#include "common/net/net.h"
-#include "common/prompt.h"
#if USE_REF
#include "client/video.h"
#endif
#include "system/system.h"
+#include "tty.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/mman.h>
-#include <sys/ioctl.h>
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#include <dirent.h>
#include <dlfcn.h>
-#include <termios.h>
#include <errno.h>
cvar_t *sys_basedir;
@@ -52,419 +48,6 @@ cvar_t *sys_parachute;
/*
===============================================================================
-TERMINAL SUPPORT
-
-===============================================================================
-*/
-
-#if USE_SYSCON
-
-cvar_t *sys_console;
-
-static qboolean tty_enabled;
-static struct termios tty_orig;
-static commandPrompt_t tty_prompt;
-static int tty_hidden;
-static ioentry_t *tty_io;
-
-static int stdout_sleep(void)
-{
- struct timeval tv;
- fd_set fd;
-
- tv.tv_sec = 0;
- tv.tv_usec = 10000;
-
- FD_ZERO(&fd);
- FD_SET(STDOUT_FILENO, &fd);
-
- return select(STDOUT_FILENO + 1, NULL, &fd, NULL, &tv);
-}
-
-// handles partial writes correctly, but never spins too much
-// blocks for 100 ms before giving up and losing data
-static void stdout_write(const char *buf, size_t len)
-{
- const char *what;
- int ret, spins;
-
- for (spins = 0; spins < 10; spins++) {
- if (len == 0)
- break;
-
- ret = write(STDOUT_FILENO, buf, len);
- if (q_unlikely(ret < 0)) {
- if (errno == EINTR)
- continue;
-
- if (errno == EAGAIN) {
- ret = stdout_sleep();
- if (ret >= 0)
- continue;
- what = "select";
- } else {
- what = "write";
- }
-
- // avoid recursive calls
- sys_console = NULL;
- tty_enabled = qfalse;
-
- Com_Error(ERR_FATAL, "%s: %s() failed: %s",
- __func__, what, strerror(errno));
- }
-
- buf += ret;
- len -= ret;
- }
-}
-
-static void tty_hide_input(void)
-{
- int i;
-
- if (!tty_hidden) {
- for (i = 0; i <= tty_prompt.inputLine.cursorPos; i++) {
- stdout_write("\b \b", 3);
- }
- }
- tty_hidden++;
-}
-
-static void tty_show_input(void)
-{
- if (!tty_hidden) {
- return;
- }
-
- tty_hidden--;
- if (!tty_hidden) {
- stdout_write("]", 1);
- stdout_write(tty_prompt.inputLine.text,
- tty_prompt.inputLine.cursorPos);
- }
-}
-
-static void tty_init_input(void)
-{
- struct termios tty;
-#ifdef TIOCGWINSZ
- struct winsize ws;
-#endif
- int width;
-
- if (!isatty(STDIN_FILENO) || !isatty(STDOUT_FILENO)) {
- Com_Printf("stdin/stdout don't both refer to a TTY\n");
- Cvar_Set("sys_console", "1");
- return;
- }
-
- tcgetattr(STDIN_FILENO, &tty_orig);
- tty = tty_orig;
- tty.c_iflag &= ~(INPCK | ISTRIP);
- tty.c_lflag &= ~(ICANON | ECHO);
- tty.c_cc[VMIN] = 1;
- tty.c_cc[VTIME] = 0;
- tcsetattr(STDIN_FILENO, TCSADRAIN, &tty);
-
- // determine terminal width
- width = 80;
-#ifdef TIOCGWINSZ
- if (ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) == 0) {
- if (ws.ws_col) {
- width = ws.ws_col;
- }
- }
-#endif
- tty_prompt.widthInChars = width;
- tty_prompt.printf = Sys_Printf;
- tty_enabled = qtrue;
-
- // figure out input line width
- width--;
- if (width > MAX_FIELD_TEXT - 1) {
- width = MAX_FIELD_TEXT - 1;
- }
- IF_Init(&tty_prompt.inputLine, width, width);
-
- // display command prompt
- stdout_write("]", 1);
-}
-
-static void tty_shutdown_input(void)
-{
- if (tty_io) {
- NET_RemoveFd(STDIN_FILENO);
- tty_io = NULL;
- }
- if (tty_enabled) {
- tty_hide_input();
- tcsetattr(STDIN_FILENO, TCSADRAIN, &tty_orig);
- tty_enabled = qfalse;
- }
-}
-
-void Sys_SetConsoleColor(color_index_t color)
-{
- static const char color_to_ansi[8] =
- { '0', '1', '2', '3', '4', '6', '5', '7' };
- char buf[5];
- size_t len;
-
- if (!sys_console || !sys_console->integer) {
- return;
- }
-
- if (!tty_enabled) {
- return;
- }
-
- buf[0] = '\033';
- buf[1] = '[';
- switch (color) {
- case COLOR_NONE:
- buf[2] = '0';
- buf[3] = 'm';
- len = 4;
- break;
- case COLOR_ALT:
- buf[2] = '3';
- buf[3] = '2';
- buf[4] = 'm';
- len = 5;
- break;
- default:
- buf[2] = '3';
- buf[3] = color_to_ansi[color];
- buf[4] = 'm';
- len = 5;
- break;
- }
-
- if (color != COLOR_NONE) {
- tty_hide_input();
- }
- stdout_write(buf, len);
- if (color == COLOR_NONE) {
- tty_show_input();
- }
-}
-
-static void tty_write_output(const char *text)
-{
- char buf[MAXPRINTMSG];
- size_t len;
-
- for (len = 0; len < MAXPRINTMSG; len++) {
- int c = *text++;
- if (!c) {
- break;
- }
- buf[len] = Q_charascii(c);
- }
-
- stdout_write(buf, len);
-}
-
-/*
-=================
-Sys_ConsoleOutput
-=================
-*/
-void Sys_ConsoleOutput(const char *text)
-{
- if (!sys_console || !sys_console->integer) {
- return;
- }
-
- if (!tty_enabled) {
- tty_write_output(text);
- } else {
- tty_hide_input();
- tty_write_output(text);
- tty_show_input();
- }
-}
-
-void Sys_SetConsoleTitle(const char *title)
-{
- char buf[MAX_STRING_CHARS];
- size_t len;
-
- if (!sys_console || !sys_console->integer) {
- return;
- }
-
- if (!tty_enabled) {
- return;
- }
-
- buf[0] = '\033';
- buf[1] = ']';
- buf[2] = '0';
- buf[3] = ';';
-
- for (len = 4; len < MAX_STRING_CHARS - 1; len++) {
- int c = *title++;
- if (!c) {
- break;
- }
- buf[len] = Q_charascii(c);
- }
-
- buf[len++] = '\007';
-
- stdout_write(buf, len);
-}
-
-static void tty_parse_input(const char *text)
-{
- inputField_t *f;
- char *s;
- int i, key;
-
- f = &tty_prompt.inputLine;
- while (*text) {
- key = *text++;
-
- if (key == tty_orig.c_cc[VERASE] || key == 127 || key == 8) {
- if (f->cursorPos) {
- f->text[--f->cursorPos] = 0;
- stdout_write("\b \b", 3);
- }
- continue;
- }
-
- if (key == tty_orig.c_cc[VKILL]) {
- for (i = 0; i < f->cursorPos; i++) {
- stdout_write("\b \b", 3);
- }
- f->cursorPos = 0;
- continue;
- }
-
- if (key >= 32) {
- if (f->cursorPos == f->maxChars - 1) {
- stdout_write(va("\b \b%c", key), 4);
- f->text[f->cursorPos + 0] = key;
- f->text[f->cursorPos + 1] = 0;
- } else {
- stdout_write(va("%c", key), 1);
- f->text[f->cursorPos + 0] = key;
- f->text[f->cursorPos + 1] = 0;
- f->cursorPos++;
- }
- continue;
- }
-
- if (key == '\n') {
- tty_hide_input();
- s = Prompt_Action(&tty_prompt);
- if (s) {
- if (*s == '\\' || *s == '/') {
- s++;
- }
- Sys_Printf("]%s\n", s);
- Cbuf_AddText(&cmd_buffer, s);
- } else {
- stdout_write("]\n", 2);
- }
- tty_show_input();
- continue;
- }
-
- if (key == '\t') {
- tty_hide_input();
- Prompt_CompleteCommand(&tty_prompt, qfalse);
- f->cursorPos = strlen(f->text); // FIXME
- tty_show_input();
- continue;
- }
-
- if (*text) {
- key = *text++;
- if (key == '[' || key == 'O') {
- if (*text) {
- key = *text++;
- switch (key) {
- case 'A':
- tty_hide_input();
- Prompt_HistoryUp(&tty_prompt);
- tty_show_input();
- break;
- case 'B':
- tty_hide_input();
- Prompt_HistoryDown(&tty_prompt);
- tty_show_input();
- break;
-#if 0
- case 'C':
- if (f->text[f->cursorPos]) {
- stdout_write("\033[C", 3);
- f->cursorPos++;
- }
- break;
- case 'D':
- if (f->cursorPos) {
- stdout_write("\033[D", 3);
- f->cursorPos--;
- }
- break;
-#endif
- }
- }
- }
- }
- }
-}
-
-void Sys_RunConsole(void)
-{
- char text[MAX_STRING_CHARS];
- ssize_t ret;
-
- if (!sys_console || !sys_console->integer) {
- return;
- }
-
- if (!tty_io || !tty_io->canread) {
- return;
- }
-
- ret = read(STDIN_FILENO, text, sizeof(text) - 1);
- if (!ret) {
- Com_DPrintf("Read EOF from stdin.\n");
- tty_shutdown_input();
- Cvar_Set("sys_console", "0");
- return;
- }
-
- // make sure the next call will not block
- tty_io->canread = qfalse;
-
- if (ret < 0) {
- if (errno == EAGAIN || errno == EINTR) {
- return;
- }
- Com_Error(ERR_FATAL, "%s: read() failed: %s",
- __func__, strerror(errno));
- }
-
- text[ret] = 0;
-
- if (!tty_enabled) {
- Cbuf_AddText(&cmd_buffer, text);
- return;
- }
-
- tty_parse_input(text);
-}
-
-#endif // USE_SYSCON
-
-/*
-===============================================================================
-
GENERAL ROUTINES
===============================================================================
@@ -494,9 +77,7 @@ This function never returns.
*/
void Sys_Quit(void)
{
-#if USE_SYSCON
tty_shutdown_input();
-#endif
exit(EXIT_SUCCESS);
}
@@ -567,9 +148,7 @@ static void term_handler(int signum)
static void kill_handler(int signum)
{
-#if USE_SYSCON
tty_shutdown_input();
-#endif
#if USE_CLIENT && USE_REF
VID_FatalShutdown();
@@ -619,40 +198,11 @@ void Sys_Init(void)
sys_libdir = Cvar_Get("libdir", LIBDIR, CVAR_NOSET);
sys_forcegamelib = Cvar_Get("sys_forcegamelib", "", CVAR_NOSET);
-#if USE_SYSCON
- // we want TTY support enabled if started from terminal,
- // but don't want any output by default if launched without one
- // (from X session for example)
- sys_console = Cvar_Get("sys_console", isatty(STDIN_FILENO) &&
- isatty(STDOUT_FILENO) ? "2" : "0", CVAR_NOSET);
-
- if (sys_console->integer > 0) {
- int ret;
-
- // change stdin to non-blocking
- ret = fcntl(STDIN_FILENO, F_GETFL, 0);
- if (!(ret & O_NONBLOCK))
- fcntl(STDIN_FILENO, F_SETFL, ret | O_NONBLOCK);
-
- // change stdout to non-blocking
- ret = fcntl(STDOUT_FILENO, F_GETFL, 0);
- if (!(ret & O_NONBLOCK))
- fcntl(STDOUT_FILENO, F_SETFL, ret | O_NONBLOCK);
-
- // add stdin to the list of descriptors to wait on
- tty_io = NET_AddFd(STDIN_FILENO);
- tty_io->wantread = qtrue;
-
- // init optional TTY support
- if (sys_console->integer > 1)
- tty_init_input();
-
+ if (tty_init_input()) {
signal(SIGHUP, term_handler);
- } else
-#endif
- if (COM_DEDICATED) {
- signal(SIGHUP, hup_handler);
- }
+ } else if (COM_DEDICATED) {
+ signal(SIGHUP, hup_handler);
+ }
sys_parachute = Cvar_Get("sys_parachute", "1", CVAR_NOSET);
@@ -665,25 +215,6 @@ void Sys_Init(void)
}
}
-#if USE_SYSCON
-/*
-================
-Sys_Printf
-================
-*/
-void Sys_Printf(const char *fmt, ...)
-{
- va_list argptr;
- char msg[MAXPRINTMSG];
-
- va_start(argptr, fmt);
- Q_vsnprintf(msg, sizeof(msg), fmt, argptr);
- va_end(argptr);
-
- Sys_ConsoleOutput(msg);
-}
-#endif
-
/*
=================
Sys_Error
@@ -694,9 +225,7 @@ void Sys_Error(const char *error, ...)
va_list argptr;
char text[MAXERRORMSG];
-#if USE_SYSCON
tty_shutdown_input();
-#endif
#if USE_CLIENT && USE_REF
VID_FatalShutdown();
@@ -706,7 +235,8 @@ void Sys_Error(const char *error, ...)
Q_vsnprintf(text, sizeof(text), error, argptr);
va_end(argptr);
- fprintf(stderr, "********************\n"
+ fprintf(stderr,
+ "********************\n"
"FATAL: %s\n"
"********************\n", text);
exit(EXIT_FAILURE);
@@ -916,18 +446,18 @@ int main(int argc, char **argv)
if (argc > 1) {
if (!strcmp(argv[1], "-v") || !strcmp(argv[1], "--version")) {
fprintf(stderr, "%s\n", com_version_string);
- return 0;
+ return EXIT_SUCCESS;
}
if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) {
fprintf(stderr, "Usage: %s [+command arguments] [...]\n", argv[0]);
- return 0;
+ return EXIT_SUCCESS;
}
}
if (!getuid() || !geteuid()) {
- fprintf(stderr, "You can not run " PRODUCT " as superuser "
+ fprintf(stderr, "You can not run " PRODUCT " as superuser "
"for security reasons!\n");
- return 1;
+ return EXIT_FAILURE;
}
Qcommon_Init(argc, argv);
generated by cgit v1.2.3 (git 2.46.0) at 2025-09-08 20:52:07 +0000