fteqw/engine/server/sv_sys_unix.c

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/*
Copyright (C) 1996-1997 Id Software, Inc.
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 2
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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef __linux__
#ifndef _GNU_SOURCE
#define _GNU_SOURCE //we need this in order to fix up broken backtraces. make sure its defined only where needed so we still some posixy conformance test on one plat.
#endif
#endif
#include <signal.h>
#include <sys/types.h>
#include <dlfcn.h>
#include "quakedef.h"
#undef malloc
#ifdef NeXT
#include <libc.h>
#endif
#include <sys/stat.h>
#include <termios.h>
#include <unistd.h>
#include <sys/time.h>
#include <errno.h>
#include <fcntl.h>
#include <dirent.h>
#include <time.h>
#include <unistd.h>
#ifdef MULTITHREAD
#include <pthread.h>
#endif
#if defined(__linux__)
//if we're chrooting, then we need to poke a few other systems to ensure libraries are loaded
#include "netinc.h"
#endif
// callbacks
void Sys_Linebuffer_Callback (struct cvar_s *var, char *oldvalue);
cvar_t sys_nostdout = CVAR("sys_nostdout","0");
cvar_t sys_extrasleep = CVAR("sys_extrasleep","0");
cvar_t sys_colorconsole = CVAR("sys_colorconsole", "1");
cvar_t sys_linebuffer = CVARC("sys_linebuffer", "1", Sys_Linebuffer_Callback);
qboolean stdin_ready;
struct termios orig, changes;
/*
===============================================================================
REQUIRED SYS FUNCTIONS
===============================================================================
*/
/*
============
Sys_mkdir
============
*/
playdemo accepts https urls now. will start playing before the file has finished downloading, to avoid unnecessary delays. reworked network addresses to separate address family and connection type. this should make banning people more reliable, as well as simplifying a whole load of logic (no need to check for ipv4 AND ipv6). tcpconnect will keep trying to connect even if the connection wasn't instant, instead of giving up instantly. rewrote tcp connections quite a bit. sv_port_tcp now handles qtv+qizmo+http+ws+rtcbroker+tls equivalents. qtv_streamport is now a legacy cvar and now acts equivalently to sv_port_tcp (but still separate). rewrote screenshot and video capture code to use strides. this solves image-is-upside down issues with vulkan. ignore alt key in browser port. oh no! no more red text! oh no! no more alt-being-wrongly-down-and-being-unable-to-type-anything-without-forcing-alt-released! reworked audio decoder interface. now has clearly defined success/unavailable/end-of-file results. this should solve a whole load of issues with audio streaming. fixed various openal audio streaming issues too. openal also got some workarounds for emscripten's poor emulation. fixed ogg decoder to retain sync properly if seeked. updated menu_media a bit. now reads vorbis comments/id3v1 tags to get proper track names. also saves the playlist so you don't have to manually repopulate the list so it might actually be usable now (after how many years?) r_stains now defaults to 0, and is no longer enabled by presets. use decals if you want that sort of thing. added fs_noreexec cvar, so configs will not be reexeced on gamedir change. this also means defaults won't be reapplied, etc. added 'nvvk' renderer on windows, using nvidia's vulkan-inside-opengl gl extension. mostly just to see how much slower it is. fixed up the ftp server quite a lot. more complete, more compliant, and should do ipv6 properly to-boot. file transfers also threaded. fixed potential crash inside runclientphys. experimental sv_antilag=3 setting. totally untested. the aim is to avoid missing due to lagged knockbacks. may be expensive for the server. browser port's websockets support fixed. experimental support for webrtc ('works for me', requires a broker server). updated avplug(renamed to ffmpeg so people know what it is) to use ffmpeg 3.2.4 properly, with its new encoder api. should be much more robust... also added experimental audio decoder for game music etc (currently doesn't resample, so playback rates are screwed, disabled by cvar). git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5097 fc73d0e0-1445-4013-8a0c-d673dee63da5
2017-05-10 02:08:58 +00:00
void Sys_mkdir (const char *path)
{
playdemo accepts https urls now. will start playing before the file has finished downloading, to avoid unnecessary delays. reworked network addresses to separate address family and connection type. this should make banning people more reliable, as well as simplifying a whole load of logic (no need to check for ipv4 AND ipv6). tcpconnect will keep trying to connect even if the connection wasn't instant, instead of giving up instantly. rewrote tcp connections quite a bit. sv_port_tcp now handles qtv+qizmo+http+ws+rtcbroker+tls equivalents. qtv_streamport is now a legacy cvar and now acts equivalently to sv_port_tcp (but still separate). rewrote screenshot and video capture code to use strides. this solves image-is-upside down issues with vulkan. ignore alt key in browser port. oh no! no more red text! oh no! no more alt-being-wrongly-down-and-being-unable-to-type-anything-without-forcing-alt-released! reworked audio decoder interface. now has clearly defined success/unavailable/end-of-file results. this should solve a whole load of issues with audio streaming. fixed various openal audio streaming issues too. openal also got some workarounds for emscripten's poor emulation. fixed ogg decoder to retain sync properly if seeked. updated menu_media a bit. now reads vorbis comments/id3v1 tags to get proper track names. also saves the playlist so you don't have to manually repopulate the list so it might actually be usable now (after how many years?) r_stains now defaults to 0, and is no longer enabled by presets. use decals if you want that sort of thing. added fs_noreexec cvar, so configs will not be reexeced on gamedir change. this also means defaults won't be reapplied, etc. added 'nvvk' renderer on windows, using nvidia's vulkan-inside-opengl gl extension. mostly just to see how much slower it is. fixed up the ftp server quite a lot. more complete, more compliant, and should do ipv6 properly to-boot. file transfers also threaded. fixed potential crash inside runclientphys. experimental sv_antilag=3 setting. totally untested. the aim is to avoid missing due to lagged knockbacks. may be expensive for the server. browser port's websockets support fixed. experimental support for webrtc ('works for me', requires a broker server). updated avplug(renamed to ffmpeg so people know what it is) to use ffmpeg 3.2.4 properly, with its new encoder api. should be much more robust... also added experimental audio decoder for game music etc (currently doesn't resample, so playback rates are screwed, disabled by cvar). git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5097 fc73d0e0-1445-4013-8a0c-d673dee63da5
2017-05-10 02:08:58 +00:00
if (mkdir (path, 0755) != -1)
return;
// if (errno != EEXIST)
// Sys_Error ("mkdir %s: %s",path, strerror(errno));
}
playdemo accepts https urls now. will start playing before the file has finished downloading, to avoid unnecessary delays. reworked network addresses to separate address family and connection type. this should make banning people more reliable, as well as simplifying a whole load of logic (no need to check for ipv4 AND ipv6). tcpconnect will keep trying to connect even if the connection wasn't instant, instead of giving up instantly. rewrote tcp connections quite a bit. sv_port_tcp now handles qtv+qizmo+http+ws+rtcbroker+tls equivalents. qtv_streamport is now a legacy cvar and now acts equivalently to sv_port_tcp (but still separate). rewrote screenshot and video capture code to use strides. this solves image-is-upside down issues with vulkan. ignore alt key in browser port. oh no! no more red text! oh no! no more alt-being-wrongly-down-and-being-unable-to-type-anything-without-forcing-alt-released! reworked audio decoder interface. now has clearly defined success/unavailable/end-of-file results. this should solve a whole load of issues with audio streaming. fixed various openal audio streaming issues too. openal also got some workarounds for emscripten's poor emulation. fixed ogg decoder to retain sync properly if seeked. updated menu_media a bit. now reads vorbis comments/id3v1 tags to get proper track names. also saves the playlist so you don't have to manually repopulate the list so it might actually be usable now (after how many years?) r_stains now defaults to 0, and is no longer enabled by presets. use decals if you want that sort of thing. added fs_noreexec cvar, so configs will not be reexeced on gamedir change. this also means defaults won't be reapplied, etc. added 'nvvk' renderer on windows, using nvidia's vulkan-inside-opengl gl extension. mostly just to see how much slower it is. fixed up the ftp server quite a lot. more complete, more compliant, and should do ipv6 properly to-boot. file transfers also threaded. fixed potential crash inside runclientphys. experimental sv_antilag=3 setting. totally untested. the aim is to avoid missing due to lagged knockbacks. may be expensive for the server. browser port's websockets support fixed. experimental support for webrtc ('works for me', requires a broker server). updated avplug(renamed to ffmpeg so people know what it is) to use ffmpeg 3.2.4 properly, with its new encoder api. should be much more robust... also added experimental audio decoder for game music etc (currently doesn't resample, so playback rates are screwed, disabled by cvar). git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5097 fc73d0e0-1445-4013-8a0c-d673dee63da5
2017-05-10 02:08:58 +00:00
qboolean Sys_rmdir (const char *path)
{
if (rmdir (path) == 0)
return true;
if (errno == ENOENT)
return true;
return false;
}
playdemo accepts https urls now. will start playing before the file has finished downloading, to avoid unnecessary delays. reworked network addresses to separate address family and connection type. this should make banning people more reliable, as well as simplifying a whole load of logic (no need to check for ipv4 AND ipv6). tcpconnect will keep trying to connect even if the connection wasn't instant, instead of giving up instantly. rewrote tcp connections quite a bit. sv_port_tcp now handles qtv+qizmo+http+ws+rtcbroker+tls equivalents. qtv_streamport is now a legacy cvar and now acts equivalently to sv_port_tcp (but still separate). rewrote screenshot and video capture code to use strides. this solves image-is-upside down issues with vulkan. ignore alt key in browser port. oh no! no more red text! oh no! no more alt-being-wrongly-down-and-being-unable-to-type-anything-without-forcing-alt-released! reworked audio decoder interface. now has clearly defined success/unavailable/end-of-file results. this should solve a whole load of issues with audio streaming. fixed various openal audio streaming issues too. openal also got some workarounds for emscripten's poor emulation. fixed ogg decoder to retain sync properly if seeked. updated menu_media a bit. now reads vorbis comments/id3v1 tags to get proper track names. also saves the playlist so you don't have to manually repopulate the list so it might actually be usable now (after how many years?) r_stains now defaults to 0, and is no longer enabled by presets. use decals if you want that sort of thing. added fs_noreexec cvar, so configs will not be reexeced on gamedir change. this also means defaults won't be reapplied, etc. added 'nvvk' renderer on windows, using nvidia's vulkan-inside-opengl gl extension. mostly just to see how much slower it is. fixed up the ftp server quite a lot. more complete, more compliant, and should do ipv6 properly to-boot. file transfers also threaded. fixed potential crash inside runclientphys. experimental sv_antilag=3 setting. totally untested. the aim is to avoid missing due to lagged knockbacks. may be expensive for the server. browser port's websockets support fixed. experimental support for webrtc ('works for me', requires a broker server). updated avplug(renamed to ffmpeg so people know what it is) to use ffmpeg 3.2.4 properly, with its new encoder api. should be much more robust... also added experimental audio decoder for game music etc (currently doesn't resample, so playback rates are screwed, disabled by cvar). git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5097 fc73d0e0-1445-4013-8a0c-d673dee63da5
2017-05-10 02:08:58 +00:00
qboolean Sys_remove (const char *path)
{
#ifdef __unix__
return unlink(path);
#else
return system(va("rm \"%s\"", path));
#endif
}
playdemo accepts https urls now. will start playing before the file has finished downloading, to avoid unnecessary delays. reworked network addresses to separate address family and connection type. this should make banning people more reliable, as well as simplifying a whole load of logic (no need to check for ipv4 AND ipv6). tcpconnect will keep trying to connect even if the connection wasn't instant, instead of giving up instantly. rewrote tcp connections quite a bit. sv_port_tcp now handles qtv+qizmo+http+ws+rtcbroker+tls equivalents. qtv_streamport is now a legacy cvar and now acts equivalently to sv_port_tcp (but still separate). rewrote screenshot and video capture code to use strides. this solves image-is-upside down issues with vulkan. ignore alt key in browser port. oh no! no more red text! oh no! no more alt-being-wrongly-down-and-being-unable-to-type-anything-without-forcing-alt-released! reworked audio decoder interface. now has clearly defined success/unavailable/end-of-file results. this should solve a whole load of issues with audio streaming. fixed various openal audio streaming issues too. openal also got some workarounds for emscripten's poor emulation. fixed ogg decoder to retain sync properly if seeked. updated menu_media a bit. now reads vorbis comments/id3v1 tags to get proper track names. also saves the playlist so you don't have to manually repopulate the list so it might actually be usable now (after how many years?) r_stains now defaults to 0, and is no longer enabled by presets. use decals if you want that sort of thing. added fs_noreexec cvar, so configs will not be reexeced on gamedir change. this also means defaults won't be reapplied, etc. added 'nvvk' renderer on windows, using nvidia's vulkan-inside-opengl gl extension. mostly just to see how much slower it is. fixed up the ftp server quite a lot. more complete, more compliant, and should do ipv6 properly to-boot. file transfers also threaded. fixed potential crash inside runclientphys. experimental sv_antilag=3 setting. totally untested. the aim is to avoid missing due to lagged knockbacks. may be expensive for the server. browser port's websockets support fixed. experimental support for webrtc ('works for me', requires a broker server). updated avplug(renamed to ffmpeg so people know what it is) to use ffmpeg 3.2.4 properly, with its new encoder api. should be much more robust... also added experimental audio decoder for game music etc (currently doesn't resample, so playback rates are screwed, disabled by cvar). git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5097 fc73d0e0-1445-4013-8a0c-d673dee63da5
2017-05-10 02:08:58 +00:00
qboolean Sys_Rename (const char *oldfname, const char *newfname)
{
return !rename(oldfname, newfname);
}
#if _POSIX_C_SOURCE >= 200112L
#include <sys/statvfs.h>
#endif
qboolean Sys_GetFreeDiskSpace(const char *path, quint64_t *freespace)
{
#if _POSIX_C_SOURCE >= 200112L
//posix 2001
struct statvfs inf;
if(0==statvfs(path, &inf))
{
*freespace = inf.f_bsize*(quint64_t)inf.f_bavail;
return true;
}
#endif
return false;
}
int Sys_DebugLog(char *file, char *fmt, ...)
{
va_list argptr;
char data[1024];
int fd;
size_t result;
va_start(argptr, fmt);
vsnprintf (data,sizeof(data)-1, fmt, argptr);
va_end(argptr);
if (strlen(data) >= sizeof(data)-1)
Sys_Error("Sys_DebugLog was stomped\n");
fd = open(file, O_WRONLY | O_CREAT | O_APPEND, 0666);
if (fd)
{
result = write(fd, data, strlen(data)); // do something with the result
if (result != strlen(data))
Con_Printf("Sys_DebugLog() write: Filename: %s, expected %lu, result was %lu (%s)\n",file,(unsigned long)strlen(data),(unsigned long)result,strerror(errno));
close(fd);
return 0;
}
return 1;
}
/*
================
Sys_Milliseconds
================
*/
unsigned int Sys_Milliseconds (void)
{
struct timeval tp;
struct timezone tzp;
static int secbase;
gettimeofday(&tp, &tzp);
if (!secbase)
{
secbase = tp.tv_sec;
return tp.tv_usec/1000;
}
return (tp.tv_sec - secbase)*1000 + tp.tv_usec/1000;
}
/*
================
Sys_DoubleTime
================
*/
double Sys_DoubleTime (void)
{
struct timeval tp;
struct timezone tzp;
static int secbase;
gettimeofday(&tp, &tzp);
if (!secbase)
{
secbase = tp.tv_sec;
return tp.tv_usec/1000000.0;
}
return (tp.tv_sec - secbase) + tp.tv_usec/1000000.0;
}
/*
================
Sys_Error
================
*/
void Sys_Error (const char *error, ...)
{
va_list argptr;
char string[1024];
va_start (argptr,error);
vsnprintf (string,sizeof(string)-1, error,argptr);
va_end (argptr);
COM_WorkerAbort(string);
printf ("Fatal error: %s\n",string);
tcsetattr(STDIN_FILENO, TCSADRAIN, &orig);
added qccgui icon (courtesy of shpuld) isolated transfers a little. added preliminary support for r1q2 and q2pro protocols (no zlib). fixed some missing q2 hud configstrings. fixed models attached to particles not appearing the first time around. fixed halos appearing on {foo fullbright textures. fix particle crash bug from missing particlecubes. implement r_converteffectinfo (instead of r_importeffectinfo with r_exportalleffects) for convenience. also now more complete and more accurate. loadfont no longer auto-allocates slot 0. fix issues with r_dynamic -1 don't restart audio on vid_reload (only reload it). this fixes audio issues with capturedemo with gamedir changes. fix possible crash from loading sounds during an audio reload/restart. now listens on both ports 27500 and 26000 when running quake, by default. sv_port or -port args will override. work around surfedge corruption in some instance of the slide4 map that dimman found. attempt to nudge players to travel at at least 200qu when travelling vertically through portals. this should help alieviate gravity-induced stuttering issues. fix nested function types used in conjunction with op_state. now assumes static within the parent. optimise array indexes slightly. fix issue with ptr[float].foo fix some qcc bugs to do with implicit type conversions fix a portal / angle protocol extension issue, so legacy clients can use portals, they just can't see the other side (nor predict them). fix q2 victory.pcx issue at the end of the game. use abort/sigabort instead of sigsegv on linux sys_errors. this should help get people to report stuff better. reformat the nq server advertising to be more helpful. git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4996 fc73d0e0-1445-4013-8a0c-d673dee63da5
2015-12-28 17:41:39 +00:00
//we used to fire sigsegv. this resulted in people reporting segfaults and not the error message that appeared above. resulting in wasted debugging.
//abort should trigger a SIGABRT and still give us the same stack trace. should be more useful that way.
abort();
exit (1);
}
static qboolean useansicolours;
static int ansiremap[8] = {0, 4, 2, 6, 1, 5, 3, 7};
static void ApplyColour(unsigned int chr)
{
static int oldchar = CON_WHITEMASK;
int bg, fg;
chr &= CON_FLAGSMASK;
if (oldchar == chr)
return;
oldchar = chr;
if (!useansicolours) //don't spew weird chars when redirected to a file.
return;
printf("\e[0;"); // reset
if (chr & CON_BLINKTEXT)
printf("5;"); // set blink
bg = (chr & CON_BGMASK) >> CON_BGSHIFT;
fg = (chr & CON_FGMASK) >> CON_FGSHIFT;
// don't handle intensive bit for background
// as terminals differ too much in displaying \e[1;7;3?m
bg &= 0x7;
if (chr & CON_NONCLEARBG)
{
if (fg & 0x8) // intensive bit set for foreground
{
printf("1;"); // set bold/intensity ansi flag
fg &= 0x7; // strip intensive bit
}
// set foreground and background colors
printf("3%i;4%im", ansiremap[fg], ansiremap[bg]);
}
else
{
switch(fg)
{
//to get around wierd defaults (like a white background) we have these special hacks for colours 0 and 7
case COLOR_BLACK:
printf("7m"); // set inverse
break;
case COLOR_GREY:
printf("1;30m"); // treat as dark grey
break;
case COLOR_WHITE:
printf("m"); // set nothing else
break;
default:
if (fg & 0x8) // intensive bit set for foreground
{
printf("1;"); // set bold/intensity ansi flag
fg &= 0x7; // strip intensive bit
}
printf("3%im", ansiremap[fg]); // set foreground
break;
}
}
}
#define putch(c) putc(c, stdout);
/*static void Sys_PrintColouredChar(unsigned int chr)
{
ApplyColour(chr);
chr = chr & CON_CHARMASK;
if ((chr > 128 || chr < 32) && chr != 10 && chr != 13 && chr != 9)
printf("[%02x]", chr);
else
chr &= ~0x80;
putch(chr);
}*/
/*
================
Sys_Printf
================
*/
#define MAXPRINTMSG 4096
char coninput_text[256];
int coninput_len;
void Sys_Printf (char *fmt, ...)
{
va_list argptr;
if (sys_nostdout.value)
return;
if (1)
{
char msg[MAXPRINTMSG];
unsigned char *t;
va_start (argptr,fmt);
vsnprintf (msg,sizeof(msg)-1, fmt,argptr);
va_end (argptr);
#ifdef SUBSERVERS
if (SSV_IsSubServer())
{
SSV_PrintToMaster(msg);
return;
}
#endif
//if we're not linebuffered, kill the currently displayed input line, add the new text, and add more output.
if (!sys_linebuffer.value)
{
int i;
for (i = 0; i < coninput_len; i++)
putch('\b');
putch('\b');
for (i = 0; i < coninput_len; i++)
putch(' ');
putch(' ');
for (i = 0; i < coninput_len; i++)
putch('\b');
putch('\b');
}
if (sys_colorconsole.value)
{
wchar_t w;
conchar_t *e, *c;
conchar_t ctext[MAXPRINTMSG];
unsigned int codeflags, codepoint;
e = COM_ParseFunString(CON_WHITEMASK, msg, ctext, sizeof(ctext), false);
for (c = ctext; c < e; )
{
c = Font_Decode(c, &codeflags, &codepoint);
if (codeflags & CON_HIDDEN)
continue;
if ((codeflags&CON_RICHFORECOLOUR) || (codepoint == '\n' && (codeflags&CON_NONCLEARBG)))
codeflags = CON_WHITEMASK; //make sure we don't get annoying backgrounds on other lines.
ApplyColour(codeflags);
w = codepoint;
if (w >= 0xe000 && w < 0xe100)
{
/*not all quake chars are ascii compatible, so map those control chars to safe ones so we don't mess up anyone's xterm*/
if ((w & 0x7f) > 0x20)
putc(w&0x7f, stdout);
else if (w & 0x80)
{
static char tab[32] = "---#@.@@@@ # >.." "[]0123456789.---";
putc(tab[w&31], stdout);
}
else
{
static char tab[32] = ".####.#### # >.." "[]0123456789.---";
putc(tab[w&31], stdout);
}
}
else
{
/*putwc doesn't like me. force it in utf8*/
if (w >= 0x80)
{
if (w > 0x800)
{
putc(0xe0 | ((w>>12)&0x0f), stdout);
putc(0x80 | ((w>>6)&0x3f), stdout);
}
else
putc(0xc0 | ((w>>6)&0x1f), stdout);
putc(0x80 | (w&0x3f), stdout);
}
else
putc(w, stdout);
}
}
ApplyColour(CON_WHITEMASK);
}
else
{
for (t = (unsigned char*)msg; *t; t++)
{
if (*t >= 146 && *t < 156)
*t = *t - 146 + '0';
if (*t >= 0x12 && *t <= 0x1b)
*t = *t - 0x12 + '0';
if (*t == 143)
*t = '.';
if (*t == 157 || *t == 158 || *t == 159)
*t = '-';
if (*t >= 128)
*t -= 128;
if (*t == 16)
*t = '[';
if (*t == 17)
*t = ']';
if (*t == 0x1c)
*t = 249;
*t &= 0x7f;
if ((*t > 128 || *t < 32) && *t != 10 && *t != 13 && *t != 9)
printf("[%02x]", *t);
else
putc(*t, stdout);
}
}
//and put the input line back
if (!sys_linebuffer.value)
{
if (coninput_len)
printf("]%s", coninput_text);
else
putch(']');
}
}
else
{
va_start (argptr,fmt);
vprintf (fmt,argptr);
va_end (argptr);
}
fflush(stdout);
}
#if 0
/*
================
Sys_Printf
================
*/
void Sys_Printf (char *fmt, ...)
{
va_list argptr;
static char text[2048];
unsigned char *p;
if (sys_nostdout.value || SSV_IsSubServer())
return;
va_start (argptr,fmt);
vsnprintf (text,sizeof(text)-1, fmt,argptr);
va_end (argptr);
if (strlen(text) > sizeof(text))
Sys_Error("memory overwrite in Sys_Printf");
for (p = (unsigned char *)text; *p; p++) {
*p &= 0x7f;
if ((*p > 128 || *p < 32) && *p != 10 && *p != 13 && *p != 9)
printf("[%02x]", *p);
else
putc(*p, stdout);
}
fflush(stdout);
}
#endif
/*
================
Sys_Quit
================
*/
void Sys_Quit (void)
{
tcsetattr(STDIN_FILENO, TCSADRAIN, &orig);
exit (0); // appkit isn't running
}
static int do_stdin = 1;
#if 1
static char *Sys_LineInputChar(char *line)
{
char c;
while(*line)
{
c = *line++;
if (c == '\r' || c == '\n')
{
coninput_text[coninput_len] = 0;
putch ('\n');
putch (']');
coninput_len = 0;
fflush(stdout);
return coninput_text;
}
if (c == 8)
{
if (coninput_len)
{
putch (c);
putch (' ');
putch (c);
coninput_len--;
coninput_text[coninput_len] = 0;
}
continue;
}
if (c == '\t')
{
int i;
char *s = Cmd_CompleteCommand(coninput_text, true, true, 0, NULL);
if(s)
{
for (i = 0; i < coninput_len; i++)
putch('\b');
for (i = 0; i < coninput_len; i++)
putch(' ');
for (i = 0; i < coninput_len; i++)
putch('\b');
strcpy(coninput_text, s);
coninput_len = strlen(coninput_text);
printf("%s", coninput_text);
}
continue;
}
putch (c);
coninput_text[coninput_len] = c;
coninput_len++;
coninput_text[coninput_len] = 0;
if (coninput_len == sizeof(coninput_text))
coninput_len = 0;
}
fflush(stdout);
return NULL;
}
#endif
/*
================
Sys_ConsoleInput
Checks for a complete line of text typed in at the console, then forwards
it to the host command processor
================
*/
void Sys_Linebuffer_Callback (struct cvar_s *var, char *oldvalue)
{
changes = orig;
if (var->value)
{
changes.c_lflag |= (ICANON|ECHO);
}
else
{
changes.c_lflag &= ~(ICANON|ECHO);
changes.c_cc[VTIME] = 0;
changes.c_cc[VMIN] = 1;
}
tcsetattr(STDIN_FILENO, TCSADRAIN, &changes);
}
char *Sys_ConsoleInput (void)
{
static char text[256];
int len;
#ifdef SUBSERVERS
if (SSV_IsSubServer())
{
SSV_CheckFromMaster();
return NULL;
}
#endif
if (!stdin_ready || !do_stdin)
return NULL; // the select didn't say it was ready
stdin_ready = false;
if (sys_linebuffer.value == 0)
{
text[0] = getc(stdin);
text[1] = 0;
len = 1;
return Sys_LineInputChar(text);
}
else
{
len = read (0, text, sizeof(text)-1);
if (len == 0)
{
// end of file
do_stdin = 0;
return NULL;
}
if (len < 1)
return NULL;
text[len-1] = 0; // rip off the /n and terminate
return text;
}
}
/*
=============
Sys_Init
Quake calls this so the system can register variables before host_hunklevel
is marked
=============
*/
void Sys_Init (void)
{
Cvar_Register (&sys_nostdout, "System configuration");
Cvar_Register (&sys_extrasleep, "System configuration");
Cvar_Register (&sys_colorconsole, "System configuration");
Cvar_Register (&sys_linebuffer, "System configuration");
}
void Sys_Shutdown (void)
{
}
#if defined(__linux__) && defined(__GNUC__)
#include <execinfo.h>
#ifdef __i386__
#include <ucontext.h>
#endif
static void Friendly_Crash_Handler(int sig, siginfo_t *info, void *vcontext)
{
int fd;
void *array[10];
size_t size;
int firstframe = 0;
char signame[32];
switch(sig)
{
case SIGILL: strcpy(signame, "SIGILL"); break;
case SIGFPE: strcpy(signame, "SIGFPE"); break;
case SIGBUS: strcpy(signame, "SIGBUS"); break;
added qccgui icon (courtesy of shpuld) isolated transfers a little. added preliminary support for r1q2 and q2pro protocols (no zlib). fixed some missing q2 hud configstrings. fixed models attached to particles not appearing the first time around. fixed halos appearing on {foo fullbright textures. fix particle crash bug from missing particlecubes. implement r_converteffectinfo (instead of r_importeffectinfo with r_exportalleffects) for convenience. also now more complete and more accurate. loadfont no longer auto-allocates slot 0. fix issues with r_dynamic -1 don't restart audio on vid_reload (only reload it). this fixes audio issues with capturedemo with gamedir changes. fix possible crash from loading sounds during an audio reload/restart. now listens on both ports 27500 and 26000 when running quake, by default. sv_port or -port args will override. work around surfedge corruption in some instance of the slide4 map that dimman found. attempt to nudge players to travel at at least 200qu when travelling vertically through portals. this should help alieviate gravity-induced stuttering issues. fix nested function types used in conjunction with op_state. now assumes static within the parent. optimise array indexes slightly. fix issue with ptr[float].foo fix some qcc bugs to do with implicit type conversions fix a portal / angle protocol extension issue, so legacy clients can use portals, they just can't see the other side (nor predict them). fix q2 victory.pcx issue at the end of the game. use abort/sigabort instead of sigsegv on linux sys_errors. this should help get people to report stuff better. reformat the nq server advertising to be more helpful. git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4996 fc73d0e0-1445-4013-8a0c-d673dee63da5
2015-12-28 17:41:39 +00:00
case SIGABRT: strcpy(signame, "SIGABRT"); break;
case SIGSEGV: Q_snprintfz(signame, sizeof(signame), "SIGSEGV (%p)", info->si_addr); break;
default: Q_snprintfz(signame, sizeof(signame), "%i", sig); break;
}
// get void*'s for all entries on the stack
size = backtrace(array, 10);
#if defined(__i386__)
//x86 signals don't leave the stack in a clean state, so replace the signal handler with the real crash address, and hide this function
ucontext_t *uc = vcontext;
array[1] = (void*)uc->uc_mcontext.gregs[REG_EIP];
firstframe = 1;
#elif defined(__amd64__)
//amd64 is sane enough, but this function and the libc signal handler are on the stack, and should be ignored.
firstframe = 2;
#endif
// print out all the frames to stderr
fprintf(stderr, "Error: signal %s:\n", signame);
backtrace_symbols_fd(array+firstframe, size-firstframe, 2);
fd = open("crash.log", O_WRONLY|O_CREAT|O_APPEND, S_IRUSR | S_IWUSR | S_IRGRP);
if (fd != -1)
{
time_t rawtime;
struct tm * timeinfo;
char buffer [80];
time (&rawtime);
timeinfo = localtime (&rawtime);
strftime (buffer, sizeof(buffer), "Time: %Y-%m-%d %H:%M:%S\n",timeinfo);
write(fd, buffer, strlen(buffer));
Q_snprintfz(buffer, sizeof(buffer), "Binary: "__DATE__" "__TIME__"\n");
write(fd, buffer, strlen(buffer));
Q_snprintfz(buffer, sizeof(buffer), "Ver: %i.%02i%s\n", FTE_VER_MAJOR, FTE_VER_MINOR,
#ifdef OFFICIAL_RELEASE
" (official)");
#else
"");
#endif
write(fd, buffer, strlen(buffer));
#ifdef SVNREVISION
if (strcmp(STRINGIFY(SVNREVISION), "-"))
{
Q_snprintfz(buffer, sizeof(buffer), "Revision: %s\n", STRINGIFY(SVNREVISION));
write(fd, buffer, strlen(buffer));
}
#endif
backtrace_symbols_fd(array + firstframe, size - firstframe, fd);
write(fd, "\n", 1);
close(fd);
}
exit(1);
}
#endif
#ifdef HAVE_GNUTLS
qboolean SSL_InitGlobal(qboolean isserver);
#endif
#ifdef SQL
#include "sv_sql.h"
#endif
static int Sys_CheckChRoot(void)
{ //also warns if run as root.
int ret = false;
#ifdef __linux__
//three ways to use this:
//nonroot-with-SUID-root -- chroots+drops to a fixed path when run as a regular user. the homedir mechanism can be used for writing files.
//root -chroot foo -uid bar -- requires root, changes the filesystem and then switches user rights before starting the game itself.
//root -chroot foo -- requires root, changes the filesystem and leaves the process with far far too many rights
uid_t ruid, euid, suid;
int arg = COM_CheckParm("-chroot");
const char *newroot = arg?com_argv[arg+1]:NULL;
const char *newhome;
getresuid(&ruid, &euid, &suid);
// printf("ruid %u, euid %u, suid %u\n", ruid, euid, suid);
if (!euid && ruid != euid)
{ //if we're running SUID-root then assume the admin set it up that way in order to use chroot without making any libraries available inside the jail.
//however, chroot needs a certain level of sandboxing to prevent somehow running suid programs with eg a custom /etc/passwd, etc.
//this means we can't allow
//FIXME other games. should use the list in fs.c
if (COM_CheckParm("-quake"))
newroot = "/usr/share/games/quake";
else if (COM_CheckParm("-quake2"))
newroot = "/usr/share/games/quake2";
else if (COM_CheckParm("-quake3"))
newroot = "/usr/share/games/quake3";
else if (COM_CheckParm("-hexen2") || COM_CheckParm("-portals"))
newroot = "/usr/share/games/hexen2";
else
#ifdef GAME_SHORTNAME
newroot = "/usr/share/games/" GAME_SHORTNAME;
#else
newroot = "/usr/share/games/quake";
#endif
//just read the environment name
newhome = getenv("USER");
}
else
{
newhome = NULL;
arg = COM_CheckParm("-uid");
if (arg)
ruid = strtol(com_argv[arg+1], NULL, 0);
}
if (newroot)
{ //chroot requires running as root, which sucks.
//make sure there's no suid programs in the new root dir that might get confused by /etc/ being something else.
//this binary MUST NOT be inside the new root.
//make sure we don't crash on any con_printfs.
#ifdef MULTITHREAD
Sys_ThreadsInit();
#endif
//FIXME: should we temporarily try swapping uid+euid so we don't have any more access than a non-suid binary for this initial init stuff?
{
struct addrinfo *info;
if (getaddrinfo("master.quakeservers.net", NULL, NULL, &info) == 0) //make sure we've loaded /etc/resolv.conf etc, otherwise any dns requests are going to fail, which would mean no masters.
freeaddrinfo(info);
}
#if defined(SQL) && defined(HAVE_SERVER)
SQL_Available();
#endif
#ifdef HAVE_GNUTLS
SSL_InitGlobal(false); //we need to load the known CA certs while we still can, as well as any shared objects
//SSL_InitGlobal(true); //make sure we load our public cert from outside the sandbox. an exploit might still be able to find it in memory though. FIXME: disabled in case this reads from somewhere bad - we're still root.
#endif
{ //this protects against stray setuid programs like su reading passwords from /etc/passwd et al
//there shouldn't be anyway so really this is pure paranoia.
//(the length thing is to avoid overflows inside va giving false negatives.)
struct stat s;
if (strlen(newroot) > 4096 || lstat(va("%s/etc/", newroot), &s) != -1)
{
printf("refusing to chroot to %s - contains an /etc directory\n", newroot);
return -1;
}
if (strlen(newroot) > 4096 || lstat(va("%s/proc/", newroot), &s) != -1)
{
printf("refusing to chroot to %s - contains a /proc directory\n", newroot);
return -1;
}
}
printf("Changing root dir to \"%s\"\n", newroot);
if (chroot(newroot))
{
printf("chroot call failed\n");
return -1;
}
chdir("/"); //chroot does NOT change the working directory, so we need to make sure that happens otherwise still a way out.
//signal to the fs.c code to use an explicit base home dir.
if (newhome)
setenv("FTEHOME", va("/user/%s", newhome), true);
else
setenv("FTEHOME", va("/user/%i", ruid), true);
//these paths are no longer valid.
setenv("HOME", "", true);
setenv("XDG_DATA_HOME", "", true);
setenv("PWD", "/", true);
ret = true;
}
if (ruid != euid || newroot)
{
if (setresuid(ruid, ruid, ruid)) //go back to our original user, assuming we were SUIDed
{
printf("error dropping priveledges\n");
return -1;
}
getresuid(&ruid, &euid, &suid);
if (setuid(0) != -1 || errno != EPERM)
{
printf("priveledges were not dropped...\n");
return -1;
}
getresuid(&ruid, &euid, &suid);
}
if (!ruid || !euid || !suid)
printf("WARNING: you should NOT be running this as root!\n");
#endif
return ret;
}
/*
=============
main
=============
*/
int main(int argc, char *argv[])
{
float maxsleep;
quakeparms_t parms;
// fd_set fdset;
// extern int net_socket;
char bindir[MAX_OSPATH];
signal(SIGPIPE, SIG_IGN);
tcgetattr(STDIN_FILENO, &orig);
changes = orig;
memset (&parms, 0, sizeof(parms));
COM_InitArgv (argc, (const char **)argv);
parms.argc = com_argc;
parms.argv = com_argv;
#ifdef CONFIG_MANIFEST_TEXT
parms.manifest = CONFIG_MANIFEST_TEXT;
#endif
//decide if we should be printing colours to the stdout or not.
if (COM_CheckParm("-nocolour")||COM_CheckParm("-nocolor"))
useansicolours = false;
else
useansicolours = (isatty(STDOUT_FILENO) || COM_CheckParm("-colour") || COM_CheckParm("-color"));
switch(Sys_CheckChRoot())
{
case true:
parms.basedir = "/";
break;
case false:
parms.basedir = "./";
#ifdef __linux__
{ //attempt to figure out where the exe is located
int l = readlink("/proc/self/exe", bindir, sizeof(bindir)-1);
if (l > 0)
{
bindir[l] = 0;
*COM_SkipPath(bindir) = 0;
printf("Binary is located at \"%s\"\n", bindir);
parms.binarydir = bindir;
}
}
/*#elif defined(__bsd__)
{ //attempt to figure out where the exe is located
int l = readlink("/proc/self/exe", bindir, sizeof(bindir)-1);
if (l > 0)
{
bindir[l] = 0;
*COM_SkipPath(bindir) = 0;
printf("Binary is located at "%s"\n", bindir);
parms.binarydir = bindir;
}
}
*/
#endif
break;
default:
return -1;
}
#if defined(__linux__) && defined(__GNUC__)
if (!COM_CheckParm("-nodumpstack"))
{
struct sigaction act;
memset(&act, 0, sizeof(act));
act.sa_sigaction = Friendly_Crash_Handler;
act.sa_flags = SA_SIGINFO | SA_RESTART;
sigaction(SIGILL, &act, NULL);
sigaction(SIGFPE, &act, NULL);
sigaction(SIGSEGV, &act, NULL);
added qccgui icon (courtesy of shpuld) isolated transfers a little. added preliminary support for r1q2 and q2pro protocols (no zlib). fixed some missing q2 hud configstrings. fixed models attached to particles not appearing the first time around. fixed halos appearing on {foo fullbright textures. fix particle crash bug from missing particlecubes. implement r_converteffectinfo (instead of r_importeffectinfo with r_exportalleffects) for convenience. also now more complete and more accurate. loadfont no longer auto-allocates slot 0. fix issues with r_dynamic -1 don't restart audio on vid_reload (only reload it). this fixes audio issues with capturedemo with gamedir changes. fix possible crash from loading sounds during an audio reload/restart. now listens on both ports 27500 and 26000 when running quake, by default. sv_port or -port args will override. work around surfedge corruption in some instance of the slide4 map that dimman found. attempt to nudge players to travel at at least 200qu when travelling vertically through portals. this should help alieviate gravity-induced stuttering issues. fix nested function types used in conjunction with op_state. now assumes static within the parent. optimise array indexes slightly. fix issue with ptr[float].foo fix some qcc bugs to do with implicit type conversions fix a portal / angle protocol extension issue, so legacy clients can use portals, they just can't see the other side (nor predict them). fix q2 victory.pcx issue at the end of the game. use abort/sigabort instead of sigsegv on linux sys_errors. this should help get people to report stuff better. reformat the nq server advertising to be more helpful. git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4996 fc73d0e0-1445-4013-8a0c-d673dee63da5
2015-12-28 17:41:39 +00:00
sigaction(SIGABRT, &act, NULL);
sigaction(SIGBUS, &act, NULL);
}
#endif
#ifdef SUBSERVERS
if (COM_CheckParm("-clusterslave"))
isClusterSlave = true;
#endif
TL_InitLanguages(parms.basedir);
SV_Init (&parms);
// run one frame immediately for first heartbeat
maxsleep = SV_Frame();
//
// main loop
//
while (1)
{
if (do_stdin)
stdin_ready = NET_Sleep(maxsleep, true);
else
{
NET_Sleep(maxsleep, false);
stdin_ready = false;
}
maxsleep = SV_Frame();
// extrasleep is just a way to generate a fucked up connection on purpose
if (sys_extrasleep.value)
usleep (sys_extrasleep.value);
}
return 0;
}
static int Sys_EnumerateFiles2 (const char *truepath, int apathofs, const char *match, int (*func)(const char *, qofs_t, time_t modtime, void *, searchpathfuncs_t *), void *parm, searchpathfuncs_t *spath)
{
DIR *dir;
char file[MAX_OSPATH];
const char *s;
struct dirent *ent;
struct stat st;
const char *wild;
const char *apath = truepath+apathofs;
//if there's a * in a system path, then we need to scan its parent directory to figure out what the * expands to.
//we can just recurse quicklyish to try to handle it.
wild = strchr(apath, '*');
if (!wild)
wild = strchr(apath, '?');
if (wild)
{
char subdir[MAX_OSPATH];
for (s = wild+1; *s && *s != '/'; s++)
;
while (wild > truepath)
{
if (*(wild-1) == '/')
break;
wild--;
}
memcpy(file, truepath, wild-truepath);
file[wild-truepath] = 0;
dir = opendir(file);
memcpy(subdir, wild, s-wild);
subdir[s-wild] = 0;
if (dir)
{
do
{
ent = readdir(dir);
if (!ent)
break;
if (*ent->d_name != '.')
{
if (wildcmp(subdir, ent->d_name))
{
memcpy(file, truepath, wild-truepath);
Q_snprintfz(file+(wild-truepath), sizeof(file)-(wild-truepath), "%s%s", ent->d_name, s);
if (!Sys_EnumerateFiles2(file, apathofs, match, func, parm, spath))
{
closedir(dir);
return false;
}
}
}
} while(1);
closedir(dir);
}
return true;
}
dir = opendir(truepath);
if (!dir)
{
Con_DLPrintf((errno==ENOENT)?2:1, "Failed to open dir %s\n", truepath);
return true;
}
do
{
ent = readdir(dir);
if (!ent)
break;
if (*ent->d_name != '.')
{
if (wildcmp(match, ent->d_name))
{
Q_snprintfz(file, sizeof(file), "%s/%s", truepath, ent->d_name);
if (stat(file, &st) == 0)
{
Q_snprintfz(file, sizeof(file), "%s%s%s", apath, ent->d_name, S_ISDIR(st.st_mode)?"/":"");
if (!func(file, st.st_size, st.st_mtime, parm, spath))
{
Con_DPrintf("giving up on search after finding %s\n", file);
closedir(dir);
return false;
}
}
else
printf("Stat failed for \"%s\"\n", file);
}
}
} while(1);
closedir(dir);
return true;
}
int Sys_EnumerateFiles (const char *gpath, const char *match, int (*func)(const char *, qofs_t, time_t modtime, void *, searchpathfuncs_t *), void *parm, searchpathfuncs_t *spath)
{
char apath[MAX_OSPATH];
char truepath[MAX_OSPATH];
char *s;
if (!gpath)
gpath = "";
*apath = '\0';
Q_strncpyz(apath, match, sizeof(apath));
for (s = apath+strlen(apath)-1; s >= apath; s--)
{
if (*s == '/')
{
s[1] = '\0';
match += s - apath+1;
break;
}
}
if (s < apath) //didn't find a '/'
*apath = '\0';
Q_snprintfz(truepath, sizeof(truepath), "%s/%s", gpath, apath);
return Sys_EnumerateFiles2(truepath, strlen(gpath)+1, match, func, parm, spath);
}
void Sys_CloseLibrary(dllhandle_t *lib)
{
if (sys_nounload)
return;
dlclose((void*)lib);
}
dllhandle_t *Sys_LoadLibrary(const char *name, dllfunction_t *funcs)
{
int i;
dllhandle_t *lib;
lib = dlopen (name, RTLD_LAZY);
if (!lib && !strstr(name, ".so"))
lib = dlopen (va("%s.so", name), RTLD_LAZY);
if (!lib)
{
const char *err = dlerror();
//I hate this string check
Con_DLPrintf(strstr(err, "No such file or directory")?2:0,"%s\n", err);
return NULL;
}
if (funcs)
{
for (i = 0; funcs[i].name; i++)
{
*funcs[i].funcptr = dlsym(lib, funcs[i].name);
if (!*funcs[i].funcptr)
break;
}
if (funcs[i].name)
{
Con_DPrintf("Unable to find symbol \"%s\" in \"%s\"\n", funcs[i].name, name);
Sys_CloseLibrary((dllhandle_t*)lib);
lib = NULL;
}
}
return (dllhandle_t*)lib;
}
void *Sys_GetAddressForName(dllhandle_t *module, const char *exportname)
{
if (!module)
return NULL;
return dlsym(module, exportname);
}
void Sys_ServerActivity(void)
{
}
qboolean Sys_RandomBytes(qbyte *string, int len)
{
qboolean res = false;
int fd = open("/dev/urandom", 0);
if (fd != -1)
{
res = (read(fd, string, len) == len);
close(fd);
}
return res;
}
#ifdef WEBCLIENT
#include "fs.h"
static qboolean Sys_DoInstall(void)
{
char fname[MAX_QPATH];
float pct = 0;
qboolean applied = false;
#ifdef __unix__
qboolean showprogress = isatty(STDOUT_FILENO);
#else
qboolean showprogress = false;
#endif
#if 1
FS_CreateBasedir(NULL);
#else
char basedir[MAX_OSPATH];
if (!FS_NativePath("", FS_ROOT, basedir, sizeof(basedir)))
return true;
FS_CreateBasedir(basedir);
#endif
*fname = 0;
for(;;)
{
while(FS_DownloadingPackage())
{
const char *cur = "";
float newpct = 50;
HTTP_CL_Think(&cur, &newpct);
if (*cur && Q_strncmp(fname, cur, sizeof(fname)-1))
{
Q_strncpyz(fname, cur, sizeof(fname));
Con_Printf("Downloading: %s\n", fname);
}
if (showprogress && (int)(pct*10) != (int)(newpct*10))
{
pct = newpct;
Sys_Printf("%5.1f%%\r", pct);
}
Sys_Sleep(10/1000.0);
COM_MainThreadWork();
}
if (!applied)
{
if (!PM_MarkUpdates())
break; //no changes to apply
PM_ApplyChanges();
applied = true; //don't keep applying.
continue;
}
break;
}
if (showprogress)
Sys_Printf(" \r");
return true;
}
qboolean Sys_RunInstaller(void)
{
if (COM_CheckParm("-install"))
{ //install THEN run
Sys_DoInstall();
return false;
}
if (COM_CheckParm("-doinstall"))
{
//install only, then quit
return Sys_DoInstall();
}
if (!com_installer)
return false;
return Sys_DoInstall();
}
#endif