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fteqw/engine/client/sys_linux.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.
*/
//well, linux or cygwin (windows with posix emulation layer), anyway...
#ifndef _GNU_SOURCE
# define _GNU_SOURCE
#endif
#include <unistd.h>
#include <signal.h>
#include <stdlib.h>
#include <limits.h>
#include <time.h>
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stdio.h>
#include <dlfcn.h>
#include <dirent.h>
#if !defined(__CYGWIN__) && !defined(__DJGPP__)
# include <sys/ipc.h>
# include <sys/shm.h>
#endif
#include <sys/stat.h>
#include <string.h>
#include <ctype.h>
#include <sys/wait.h>
#include <sys/mman.h>
#include <errno.h>
#ifndef NO_X11
# if !defined(__MACOSX__) && !defined(__DJGPP__) && !defined(NO_X11)
# include <X11/Xlib.h>
# else
# define NO_X11
# endif
#endif
#ifdef __CYGWIN__
#define USE_LIBTOOL
#endif
#ifdef USE_LIBTOOL
#include <ltdl.h>
#endif
#include "quakedef.h"
#include "netinc.h"
#undef malloc
static int noconinput = 0;
static int nostdout = 0;
extern int isPlugin;
int sys_parentleft;
int sys_parenttop;
int sys_parentwidth;
int sys_parentheight;
long sys_parentwindow;
qboolean sys_gracefulexit;
qboolean X11_GetDesktopParameters(int *width, int *height, int *bpp, int *refreshrate);
static void Sys_InitClock(void);
qboolean Sys_InitTerminal (void) //we either have one or we don't.
{
return true;
}
void Sys_CloseTerminal (void)
{
}
void Sys_RecentServer(char *command, char *target, char *title, char *desc)
{
}
#ifndef CLIENTONLY
qboolean isDedicated;
#endif
// =======================================================================
// General routines
// =======================================================================
#if 1
static int ansiremap[8] = {0, 4, 2, 6, 1, 5, 3, 7};
static void ApplyColour(FILE *out, unsigned int chrflags)
{
static int oldflags = CON_WHITEMASK;
int bg, fg;
if (oldflags == chrflags)
return;
oldflags = chrflags;
fprintf(out, "\e[0;"); // reset
if (chrflags & CON_BLINKTEXT)
fprintf(out, "5;"); // set blink
bg = (chrflags & CON_BGMASK) >> CON_BGSHIFT;
fg = (chrflags & 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 (chrflags & CON_NONCLEARBG)
{
if (fg & 0x8) // intensive bit set for foreground
{
fprintf(out, "1;"); // set bold/intensity ansi flag
fg &= 0x7; // strip intensive bit
}
// set foreground and background colors
fprintf(out, "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:
fprintf(out, "7m"); // set inverse
break;
case COLOR_GREY:
fprintf(out, "1;30m"); // treat as dark grey
break;
case COLOR_WHITE:
fprintf(out, "m"); // set nothing else
break;
default:
if (fg & 0x8) // intensive bit set for foreground
{
fprintf(out, "1;"); // set bold/intensity ansi flag
fg &= 0x7; // strip intensive bit
}
fprintf(out, "3%im", ansiremap[fg]); // set foreground
break;
}
}
}
#include <wchar.h>
void Sys_Printf (char *fmt, ...)
{
va_list argptr;
char text[2048];
conchar_t ctext[2048];
conchar_t *c, *e;
wchar_t w;
unsigned int codeflags, codepoint;
FILE *out = stdout;
#ifdef SUBSERVERS
if (SSV_IsSubServer())
{
va_start (argptr,fmt);
vsnprintf (text,sizeof(text)-1, fmt,argptr);
va_end (argptr);
SSV_PrintToMaster(text);
return;
}
#endif
if (nostdout)
{
#ifdef _DEBUG
out = stderr;
#else
return;
#endif
}
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");
e = COM_ParseFunString(CON_WHITEMASK, text, 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(out, 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, out);
else if (w & 0x80)
{
static char tab[32] = "---#@.@@@@ # >.." "[]0123456789.---";
putc(tab[w&31], out);
}
else
{
static char tab[32] = ".####.#### # >.." "[]0123456789.---";
putc(tab[w&31], out);
}
}
else if (w < ' ' && w != '\t' && w != '\r' && w != '\n')
putc('?', out); //don't let anyone print escape codes or other things that could crash an xterm.
else
{
/*putwc doesn't like me. force it in utf8*/
if (w >= 0x80)
{
if (w > 0x800)
{
putc(0xe0 | ((w>>12)&0x0f), out);
putc(0x80 | ((w>>6)&0x3f), out);
}
else
putc(0xc0 | ((w>>6)&0x1f), out);
putc(0x80 | (w&0x3f), out);
}
else
putc(w, out);
}
}
ApplyColour(out, CON_WHITEMASK);
fflush(out);
}
#else
void Sys_Printf (char *fmt, ...)
{
va_list argptr;
char text[2048];
unsigned char *p;
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");
if (nostdout)
return;
for (p = (unsigned char *)text; *p; p++)
if ((*p > 128 || *p < 32) && *p != 10 && *p != 13 && *p != 9)
printf("[%02x]", *p);
else
putc(*p, stdout);
}
#endif
void Sys_Quit (void)
{
Host_Shutdown();
#ifndef __DJGPP__
if (!noconinput)
fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
#endif
#ifdef USE_LIBTOOL
lt_dlexit();
#endif
exit(0);
}
static void Sys_Register_File_Associations_f(void)
{
char xdgbase[MAX_OSPATH];
char confbase[MAX_OSPATH];
if (1)
{ //user
const char *data = getenv("XDG_DATA_HOME");
const char *config = getenv("XDG_CONFIG_HOME");
const char *home = getenv("HOME");
if (data && *data)
Q_strncpyz(xdgbase, data, sizeof(xdgbase));
else
{
if (home && *home)
Q_snprintfz(xdgbase, sizeof(xdgbase), "%s/.local/share", home);
else
{
Con_Printf("homedir not known\n");
return;
}
}
if (config && *config)
Q_strncpyz(confbase, config, sizeof(confbase));
else
{
if (home && *home)
Q_snprintfz(confbase, sizeof(confbase), "%s/.config", home);
else
{
Con_Printf("homedir not known\n");
return;
}
}
}
else
{ //system... gotta be root...
const char *data = getenv("XDG_DATA_DIRS");
const char *config = getenv("XDG_CONFIG_DIRS");
while (data && *data == ':')
data++;
if (data && *data)
{
char *c;
Q_strncpyz(xdgbase, data, sizeof(xdgbase));
c = strchr(xdgbase, ':');
if (*c)
*c = 0;
}
else
Q_strncpyz(xdgbase, "/usr/local/share/", sizeof(xdgbase));
while (config && *config == ':')
config++;
if (config && *config)
{
char *c;
Q_strncpyz(confbase, config, sizeof(confbase));
c = strchr(confbase, ':');
if (*c)
*c = 0;
}
else
Q_strncpyz(confbase, "/etc/xdg/", sizeof(confbase));
}
//we need to create some .desktop file first, so stuff knows how to start us up.
{
char iconsyspath[MAX_OSPATH];
char *exe = realpath(host_parms.argv[0], NULL);
char *basedir = realpath(com_gamepath, NULL);
const char *iconname = fs_manifest->installation;
const char *desktopfile =
"[Desktop Entry]\n"
"Type=Application\n"
"Encoding=UTF-8\n"
"Name=%s\n"
"Comment=Awesome First Person Shooter\n" //again should be a manicfest item
"Exec=\"%s\" %%u\n" //FIXME: FS_GetManifestArgs! etc!
"Path=%s\n"
"Icon=%s\n"
"Terminal=false\n"
"Categories=Game;\n"
"MimeType=" "application/x-quakeworlddemo;" "x-scheme-handler/qw;\n"
;
if (!strcmp(iconname, "afterquake") || !strcmp(iconname, "nq")) //hacks so that we don't need to create icons.
iconname = "quake";
if (FS_NativePath("icon.png", FS_PUBBASEGAMEONLY, iconsyspath, sizeof(iconsyspath)))
iconname = iconsyspath;
desktopfile = va(desktopfile,
fs_manifest->formalname?fs_manifest->formalname:fs_manifest->installation,
exe, basedir, iconname);
free(exe);
free(basedir);
FS_WriteFile(va("%s/applications/fte-%s.desktop", xdgbase, fs_manifest->installation), desktopfile, strlen(desktopfile), FS_SYSTEM);
//FIXME: read icon.png and write it to ~/.local/share/icons/hicolor/WxH/apps/foo.png
}
//we need to set some default applications.
//write out a new file and rename the new over the top of the old
{
char *foundassoc = NULL;
vfsfile_t *out = FS_OpenVFS(va("%s/.mimeapps.list.new", confbase), "wb", FS_SYSTEM);
if (out)
{
qofs_t insize;
char *in = FS_MallocFile(va("%s/mimeapps.list", confbase), FS_SYSTEM, &insize);
if (in)
{
qboolean inadded = false;
char *l = in;
while(*l)
{
char *le;
while(*l == ' ' || *l == '\n')
l++;
le = strchr(l, '\n');
if (le)
le = le+1;
else
le = l + strlen(l);
if (!strncmp(l, "[Added Associations]", 20))
{
inadded = true;
if (!foundassoc)
foundassoc = le;
}
else if (!strncmp(l, "[", 1))
inadded = false;
else if (inadded && !strncmp(l, "x-scheme-handler/qw=", 20))
{
foundassoc = l;
insize -= strlen(le);
memmove(l, le, strlen(le)); //remove the line
}
l = le;
}
if (foundassoc)
{ //if we found it, or somewhere to insert it, then insert it.
VFS_WRITE(out, in, foundassoc-in);
VFS_PRINTF(out, "x-scheme-handler/qw=fte-%s.desktop;\n", fs_manifest->installation);
VFS_WRITE(out, foundassoc, insize - (foundassoc-in));
}
else
VFS_WRITE(out, in, insize); //not found, just write everything as-is
Z_Free(in);
}
if (!foundassoc)
{ //if file not found, or no appropriate section, just concat it on the end.
VFS_PRINTF(out, "[Added Associations]\n");
VFS_PRINTF(out, "x-scheme-handler/qw=fte-%s.desktop;\n", fs_manifest->installation);
}
VFS_FLUSH(out);
VFS_CLOSE(out);
FS_Rename2(va("%s/.mimeapps.list.new", confbase), va("%s/mimeapps.list", confbase), FS_SYSTEM, FS_SYSTEM);
}
}
}
void Sys_Init(void)
{
Sys_InitClock();
Cmd_AddCommandD("sys_register_file_associations", Sys_Register_File_Associations_f, "Register FTE as the default handler for various file+protocol types, using FreeDesktop standards.\n");
}
void Sys_Shutdown(void)
{
}
void Sys_Error (const char *error, ...)
{
va_list argptr;
char string[1024];
#ifndef __DJGPP__
// change stdin back to blocking, so the shell doesn't bug out.
if (!noconinput)
fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
#endif
va_start (argptr,error);
vsnprintf (string,sizeof(string)-1, error,argptr);
va_end (argptr);
COM_WorkerAbort(string);
fprintf(stderr, "Error: %s\n", string);
Host_Shutdown ();
#ifdef USE_LIBTOOL
lt_dlexit();
#endif
fflush(stdout);
fflush(stderr);
if (!isatty(STDERR_FILENO))
{ //if we're a graphical x11 program then its quite likely that we have no stdout with the user never knowing why the game just disappeared
//the crash could have come from malloc failures, this means we can't really depend upon xlib
//but we can start some other program to display the message.
execl("/usr/bin/xmessage", "xmessage", string, NULL);
}
exit (1);
}
void Sys_Warn (char *warning, ...)
{
va_list argptr;
char string[1024];
va_start (argptr,warning);
vsnprintf (string,sizeof(string)-1, warning,argptr);
va_end (argptr);
fprintf(stderr, "Warning: %s", string);
}
void Sys_mkdir (const char *path)
{
mkdir (path, 0760);
}
qboolean Sys_rmdir (const char *path)
{
if (rmdir (path) == 0)
return true;
if (errno == ENOENT)
return true;
return false;
}
qboolean Sys_remove (const char *path)
{
//remove is part of c89.
if (remove(path) == -1)
return false;
return true;
}
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; //grab the quota-free value rather than the actual free space
return true;
}
#endif
return false;
}
int Sys_DebugLog(char *file, char *fmt, ...)
{
va_list argptr;
static 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))
Sys_Error("Sys_DebugLog's buffer was stomped\n");
// fd = open(file, O_WRONLY | O_BINARY | O_CREAT | O_APPEND, 0666);
fd = open(file, O_WRONLY | O_CREAT | O_APPEND, 0666);
if (fd)
{
result = write(fd, data, strlen(data)); // do something with result
if (result != strlen(data))
Con_SafePrintf("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;
}
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 != '.')
{
#ifdef _DIRENT_HAVE_D_TYPE
if (ent->d_type != DT_DIR && ent->d_type != DT_UNKNOWN)
continue;
#endif
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
Con_DPrintf("Stat failed for \"%s\"\n", file); //can happen with dead symlinks
}
}
} 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;
int suboffset;
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';
suboffset = strlen(gpath);
if (suboffset + 1 + strlen(apath) >= sizeof(truepath))
return false; //overflow...
memcpy(truepath, gpath, suboffset);
if (suboffset && truepath[suboffset-1] != '/')
truepath[suboffset++] = '/';
Q_strncpyz(truepath+suboffset, apath, sizeof(truepath)-suboffset);
return Sys_EnumerateFiles2(truepath, suboffset, match, func, parm, spath);
}
static quint64_t timer_basetime; //used by all clocks to bias them to starting at 0
static void Sys_ClockType_Changed(cvar_t *var, char *oldval);
static cvar_t sys_clocktype = CVARFCD("sys_clocktype", "", CVAR_NOTFROMSERVER, Sys_ClockType_Changed, "Controls which system clock to base timings from.\n0: auto\n"
"1: gettimeofday (may be discontinuous).\n"
"2: monotonic.");
static enum
{
QCLOCK_AUTO = 0,
QCLOCK_GTOD,
QCLOCK_MONOTONIC,
QCLOCK_REALTIME,
QCLOCK_INVALID
} timer_clocktype;
static quint64_t Sys_GetClock(quint64_t *freq)
{
quint64_t t;
switch(timer_clocktype)
{
#ifdef CLOCK_MONOTONIC
case QCLOCK_MONOTONIC:
{
struct timespec ts;
clock_gettime(CLOCK_MONOTONIC, &ts);
*freq = 1000000000;
t = (ts.tv_sec*(quint64_t)1000000000) + ts.tv_nsec;
}
break;
#endif
#ifdef CLOCK_REALTIME
case QCLOCK_REALTIME:
{
struct timespec ts;
clock_gettime(CLOCK_REALTIME, &ts);
*freq = 1000000000;
t = (ts.tv_sec*(quint64_t)1000000000) + ts.tv_nsec;
//WARNING t can go backwards
}
break;
#endif
default: //QCLOCK_GTOD
{
struct timeval tp;
gettimeofday(&tp, NULL);
*freq = 1000000;
t = tp.tv_sec*(quint64_t)1000000 + tp.tv_usec;
//WARNING t can go backwards
}
break;
}
return t - timer_basetime;
}
static void Sys_ClockType_Changed(cvar_t *var, char *oldval)
{
int newtype = var?var->ival:0;
if (newtype >= QCLOCK_INVALID)
newtype = QCLOCK_AUTO;
if (newtype <= QCLOCK_AUTO)
newtype = QCLOCK_MONOTONIC;
if (newtype != timer_clocktype)
{
quint64_t oldtime, oldfreq;
quint64_t newtime, newfreq;
oldtime = Sys_GetClock(&oldfreq);
timer_clocktype = newtype;
timer_basetime = 0;
newtime = Sys_GetClock(&newfreq);
timer_basetime = newtime - (newfreq * (oldtime) / oldfreq);
/*if (host_initialized)
{
const char *clockname = "unknown";
switch(timer_clocktype)
{
case QCLOCK_GTOD: clockname = "gettimeofday"; break;
#ifdef CLOCK_MONOTONIC
case QCLOCK_MONOTONIC: clockname = "monotonic"; break;
#endif
#ifdef CLOCK_REALTIME
case QCLOCK_REALTIME: clockname = "realtime"; break;
#endif
case QCLOCK_AUTO:
case QCLOCK_INVALID: break;
}
Con_Printf("Clock %s, wraps after %"PRIu64" days, %"PRIu64" years\n", clockname, (((quint64_t)-1)/newfreq)/(24*60*60), (((quint64_t)-1)/newfreq)/(24*60*60*365));
}*/
}
}
static void Sys_InitClock(void)
{
quint64_t freq;
Cvar_Register(&sys_clocktype, "System vars");
//calibrate it, and apply.
Sys_ClockType_Changed(NULL, NULL);
timer_basetime = 0;
timer_basetime = Sys_GetClock(&freq);
}
double Sys_DoubleTime (void)
{
quint64_t denum, num = Sys_GetClock(&denum);
return num / (long double)denum;
}
unsigned int Sys_Milliseconds (void)
{
quint64_t denum, num = Sys_GetClock(&denum);
num *= 1000;
return num / denum;
}
#ifdef USE_LIBTOOL
void Sys_CloseLibrary(dllhandle_t *lib)
{
lt_dlclose((void*)lib);
}
dllhandle_t *Sys_LoadLibrary(const char *name, dllfunction_t *funcs)
{
int i;
dllhandle_t *lib;
lib = NULL;
if (!lib)
lib = lt_dlopenext (name);
if (!lib)
{
Con_DLPrintf(2, "%s: %s\n", name, lt_dlerror());
return NULL;
}
if (funcs)
{
for (i = 0; funcs[i].name; i++)
{
*funcs[i].funcptr = lt_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 lt_dlsym((void*)module, exportname);
}
#else
void Sys_CloseLibrary(dllhandle_t *lib)
{
dlclose((void*)lib);
}
dllhandle_t *Sys_LoadLibrary(const char *name, dllfunction_t *funcs)
{
int i;
dllhandle_t *lib;
lib = NULL;
if (!lib)
lib = dlopen (name, RTLD_LOCAL|RTLD_LAZY);
if (!lib && !strstr(name, ".so"))
lib = dlopen (va("%s.so", name), RTLD_LOCAL|RTLD_LAZY);
if (!lib)
{
Con_DLPrintf(2,"%s\n", dlerror());
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);
}
#endif
// =======================================================================
//friendly way to crash, including stack traces. should help reduce gdb use.
#if defined(__linux__) && defined(__GLIBC__) /*should probably be GNUC but whatever*/
#include <execinfo.h>
#ifdef __i386__
#include <ucontext.h>
#endif
#ifdef DEBUG
void DumpGLState(void);
#endif
static void Friendly_Crash_Handler(int sig, siginfo_t *info, void *vcontext)
{
int fd;
void *array[64];
size_t size;
int firstframe = 0;
char signame[32];
switch(sig)
{
case SIGINT: strcpy(signame, "SIGINT"); break;
case SIGILL: strcpy(signame, "SIGILL"); break;
case SIGFPE: strcpy(signame, "SIGFPE"); break;
case SIGBUS: strcpy(signame, "SIGBUS"); 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, sizeof(array)/sizeof(array[0]));
#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
array[1] = (void*)((ucontext_t*)vcontext)->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
#ifdef SVNREVISION
fprintf(stderr, "Error: signal %s (revision "STRINGIFY(SVNREVISION)")\n", signame);
#else
fprintf(stderr, "Error: signal %s:\n", signame);
#endif
backtrace_symbols_fd(array+firstframe, size-firstframe, 2);
if (sig == SIGINT)
fd = -1; //don't write out crash logs on ctrl+c
else
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), "Ver: %i.%02i%s\n", FTE_VER_MAJOR, FTE_VER_MINOR,
#ifdef OFFICIAL_RELEASE
" (official)");
#else
"");
#endif
write(fd, buffer, strlen(buffer));
#if defined(SVNREVISION) && defined(SVNDATE)
Q_snprintfz(buffer, sizeof(buffer), "Revision: %s, %s\n", STRINGIFY(SVNREVISION), STRINGIFY(SVNDATE));
#else
Q_snprintfz(buffer, sizeof(buffer),
#ifdef SVNREVISION
"Revision: "STRINGIFY(SVNREVISION)"\n"
#endif
"Binary: "__DATE__" "__TIME__"\n");
#endif
write(fd, buffer, strlen(buffer));
backtrace_symbols_fd(array + firstframe, size - firstframe, fd);
write(fd, "\n", 1);
close(fd);
}
#if defined(DEBUG) && defined(GLQUAKE)
if (qrenderer == QR_OPENGL)
DumpGLState();
#endif
exit(1);
}
#endif
// =======================================================================
// Sleeps for microseconds
// =======================================================================
char *Sys_ConsoleInput(void)
{
#if 1
static char text[256];
char *nl;
if (noconinput)
return NULL;
#if defined(__linux__) && defined(_DEBUG)
{
int fl = fcntl (STDIN_FILENO, F_GETFL, 0);
if (!(fl & FNDELAY))
{
fcntl(STDIN_FILENO, F_SETFL, fl | FNDELAY);
// Sys_Printf(CON_WARNING "stdin flags became blocking - gdb bug?\n");
}
}
#endif
// if (!qrenderer)
{
if (!fgets(text, sizeof(text), stdin))
{
if (errno == EIO)
{
Sys_Printf(CON_WARNING "Backgrounded, ignoring stdin\n");
noconinput |= 2;
}
return NULL;
}
nl = strchr(text, '\n');
if (!nl) //err? wut?
return NULL;
*nl = 0;
//Con_Printf("console input: %s\n", text);
if (!strncmp(text, "vid_recenter ", 13))
{
Cmd_TokenizeString(text, false, false);
sys_parentleft = strtoul(Cmd_Argv(1), NULL, 0);
sys_parenttop = strtoul(Cmd_Argv(2), NULL, 0);
sys_parentwidth = strtoul(Cmd_Argv(3), NULL, 0);
sys_parentheight = strtoul(Cmd_Argv(4), NULL, 0);
sys_parentwindow = strtoul(Cmd_Argv(5), NULL, 16);
}
return text;
}
#endif
return NULL;
}
#ifdef HAVE_GNUTLS
static void DoSign(const char *fname, int signtype)
{
qbyte digest[1024];
qbyte signature[2048];
qbyte base64[2048*4];
int sigsize;
vfsfile_t *f;
const char *auth = "Unknown";
int i = COM_CheckParm("-certhost");
if (i)
auth = com_argv[i+1];
f = FS_OpenVFS(fname, "rb", FS_SYSTEM);
if (f)
{
hashfunc_t *h = &hash_sha512;
size_t l, ts = 0;
void *ctx = alloca(h->contextsize);
qbyte data[65536*16];
h->init(ctx);
while ((l=VFS_READ(f, data, sizeof(data)))>0)
{
h->process(ctx, data, l);
ts += l;
}
h->terminate(digest, ctx);
VFS_CLOSE(f);
if (signtype == 0)
{ //old junk
printf(" \\\"dlsize=%zu\\\"", ts);
Base16_EncodeBlock(digest, h->digestsize, base64, sizeof(base64));
printf(" \\\"sha512=%s\\\"", base64);
sigsize = GNUTLS_GenerateSignature(digest, h->digestsize, signature, sizeof(signature));
Base64_EncodeBlock(signature, sigsize, base64, sizeof(base64));
printf(" \\\"sign=%s:%s\\\"\n", auth, base64);
}
else if (signtype == 2)
{ //signature "auth" "signdata"
//printf(" \\\"dlsize=%zu\\\"", ts);
//Base16_EncodeBlock(digest, h->digestsize, base64, sizeof(base64));
//printf(" \\\"sha512=%s\\\"", base64);
sigsize = GNUTLS_GenerateSignature(digest, h->digestsize, signature, sizeof(signature));
Base64_EncodeBlock(signature, sigsize, base64, sizeof(base64));
printf("%s\n", base64);
}
}
}
#endif
#ifdef _POSIX_C_SOURCE
static void SigCont(int code)
{
int fl = fcntl (STDIN_FILENO, F_GETFL, 0);
if (!(fl & FNDELAY))
fcntl(STDIN_FILENO, F_SETFL, fl | FNDELAY);
noconinput &= ~2;
}
#endif
int main (int c, const char **v)
{
double time, oldtime, newtime;
quakeparms_t parms;
int i;
char bindir[1024];
signal(SIGFPE, SIG_IGN);
signal(SIGPIPE, SIG_IGN);
#ifdef _POSIX_C_SOURCE
signal(SIGTTIN, SIG_IGN); //have to ignore this if we want to not lock up when running backgrounded.
signal(SIGCONT, SigCont);
signal(SIGCHLD, SIG_IGN); //mapcluster stuff might leak zombie processes if we don't do this.
#endif
memset(&parms, 0, sizeof(parms));
parms.argc = c;
parms.argv = v;
#ifdef CONFIG_MANIFEST_TEXT
parms.manifest = CONFIG_MANIFEST_TEXT;
#endif
COM_InitArgv(parms.argc, parms.argv);
#ifdef USE_LIBTOOL
lt_dlinit();
#endif
#ifdef __linux__
{
uid_t ruid, euid, suid;
getresuid(&ruid, &euid, &suid);
if (!ruid || !euid || !suid)
printf("WARNING: you should NOT be running this as root!\n");
}
#endif
#if defined(__linux__) && defined(__GLIBC__)
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(SIGSEGV, &act, NULL);
sigaction(SIGBUS, &act, NULL);
sigaction(SIGINT, &act, NULL);
}
#endif
if (COM_CheckParm("-qcdebug"))
{
isPlugin = 3;
nostdout = true; //only spew debugging messages.
}
else
{
isPlugin = !!COM_CheckParm("-plugin");
if (isPlugin)
{
printf("status Starting up!\n");
fflush(stdout);
nostdout = true;
}
}
#if _POSIX_C_SOURCE >= 200809L
{
char *path = realpath(".", NULL);
if (path)
{
size_t l = strlen(path)+2;
char *npath = malloc(strlen(path)+2);
Q_snprintfz(npath, l, "%s/", path);
parms.basedir = npath;
free(path);
}
}
#elif _POSIX_C_SOURCE >= 200112L && defined(PATH_MAX)
{
char path[PATH_MAX];
if (realpath(".", path))
{
size_t l = strlen(path)+2;
char *npath = malloc(strlen(path)+2);
Q_snprintfz(npath, l, "%s/", path);
parms.basedir = npath;
}
}
#else
parms.basedir = "./";
#endif
memset(bindir, 0, sizeof(bindir)); //readlink does NOT null terminate, apparently.
#ifdef __linux__
//attempt to figure out where the exe is located
i = readlink("/proc/self/exe", bindir, sizeof(bindir)-1);
if (i > 0)
{
bindir[i] = 0;
*COM_SkipPath(bindir) = 0;
parms.binarydir = bindir;
}
/*#elif defined(__bsd__)
//attempt to figure out where the exe is located
i = readlink("/proc/self/file", bindir, sizeof(bindir)-1);
if (i > 0)
{
bindir[i] = 0;
*COM_SkipPath(bindir) = 0;
parms.binarydir = bindir;
}
*/
#endif
TL_InitLanguages(parms.binarydir);
if (!isatty(STDIN_FILENO))
noconinput = !isPlugin; //don't read the stdin if its probably screwed (running in qtcreator seems to pipe stdout to stdin in an attempt to screw everything up).
else
noconinput = COM_CheckParm("-noconinput") || COM_CheckParm("-nostdin");
#ifndef __DJGPP__
if (!noconinput)
fcntl(STDIN_FILENO, F_SETFL, fcntl (0, F_GETFL, 0) | FNDELAY);
#endif
#ifdef HAVE_SERVER
#ifdef SUBSERVERS
if (COM_CheckParm("-clusterslave"))
{
isDedicated = true;
nostdout = noconinput = true;
SSV_SetupControlPipe(Sys_GetStdInOutStream());
}
#endif
if (COM_CheckParm("-dedicated"))
isDedicated = true;
#endif
if (COM_CheckParm("-nostdout"))
nostdout = 1;
#ifdef HAVE_GNUTLS
//fteqw -privcert privcert.key -pubcert pubcert.key -sign binaryfile.pk3
i = COM_CheckParm("-sign");
if (!i)
i = COM_CheckParm("-sign2");
if (i)
{
//init some useless crap
host_parms = parms;
Cvar_Init();
Memory_Init ();
COM_Init ();
DoSign(com_argv[i+1], atoi(com_argv[i+0]+5));
return EXIT_SUCCESS;
}
#endif
if (parms.binarydir)
Sys_Printf("Binary is located at \"%s\"\n", parms.binarydir);
#ifndef CLIENTONLY
if (isDedicated) //compleate denial to switch to anything else - many of the client structures are not initialized.
{
float delay;
SV_Init (&parms);
delay = SV_Frame();
while (1)
{
if (!isDedicated)
Sys_Error("Dedicated was cleared");
NET_Sleep(delay, false);
delay = SV_Frame();
}
}
#endif
Host_Init(&parms);
for (i = 1; i < parms.argc; i++)
{
if (!parms.argv[i])
continue;
if (*parms.argv[i] == '+' || *parms.argv[i] == '-')
break;
Host_RunFile(parms.argv[i], strlen(parms.argv[i]), NULL);
}
oldtime = Sys_DoubleTime ();
while (1)
{
double sleeptime;
#ifdef __MACOSX__
//wow, not even windows was this absurd.
#ifdef GLQUAKE
if (glcocoaRunLoop())
{
oldtime = Sys_DoubleTime ();
continue;
}
#endif
#endif
// find time spent rendering last frame
newtime = Sys_DoubleTime ();
time = newtime - oldtime;
#ifdef HAVE_SERVER
if (isDedicated)
{
sleeptime = SV_Frame();
oldtime = newtime;
NET_Sleep(sleeptime, noconinput?false:true);
}
else
#endif
{
sleeptime = Host_Frame(time);
oldtime = newtime;
if (sleeptime)
Sys_Sleep(sleeptime);
}
}
}
/*
================
Sys_MakeCodeWriteable
================
*/
#if 0
void Sys_MakeCodeWriteable (void *startptr, unsigned long length)
{
int r;
uintptr_t addr;
int psize = getpagesize();
addr = ((uintptr_t)startptr & ~(psize-1)) - psize;
// fprintf(stderr, "writable code %lx(%lx)-%lx, length=%lx\n", startaddr,
// addr, startaddr+length, length);
r = mprotect((char*)addr, length + startaddr - addr + psize, 7);
if (r < 0)
Sys_Error("Protection change failed\n");
}
#endif
//fixme: some sort of taskbar/gnome panel flashing.
void Sys_ServerActivity(void)
{
}
//FIXME: this is hacky. Unlike other OSes where the GUI is part of the OS, X is seperate
//from the OS. This will cause problems with framebuffer-only setups.
qboolean Sys_GetDesktopParameters(int *width, int *height, int *bpp, int *refreshrate)
{
#if defined(NO_X11)
//this about sums up the problem with this function
return false;
#else
return X11_GetDesktopParameters(width, height, bpp, refreshrate);
/*
Display *xtemp;
int scr;
xtemp = XOpenDisplay(NULL);
if (!xtemp)
return false;
scr = DefaultScreen(xtemp);
*width = DisplayWidth(xtemp, scr);
*height = DisplayHeight(xtemp, scr);
*bpp = DefaultDepth(xtemp, scr);
*refreshrate = 0;
XCloseDisplay(xtemp);
return true;
*/
#endif
}
#if defined(NO_X11)
#define SYS_CLIPBOARD_SIZE 256
static char clipboard_buffer[SYS_CLIPBOARD_SIZE] = {0};
void Sys_Clipboard_PasteText(clipboardtype_t cbt, void (*callback)(void *cb, const char *utf8), void *ctx)
{
callback(ctx, clipboard_buffer);
}
void Sys_SaveClipboard(clipboardtype_t cbt, const char *text) {
Q_strncpyz(clipboard_buffer, text, SYS_CLIPBOARD_SIZE);
}
#endif
qboolean Sys_RandomBytes(qbyte *string, int len)
{
qboolean res;
int fd = open("/dev/urandom", 0);
res = (read(fd, string, len) == len);
close(fd);
return res;
}
#ifdef MANIFESTDOWNLOADS
qboolean Sys_RunInstaller(void)
{
return false;
}
#endif
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