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Diffstat (limited to 'src/sys/sys_unix.c')
| -rw-r--r-- | src/sys/sys_unix.c | 818 |
1 files changed, 818 insertions, 0 deletions
diff --git a/src/sys/sys_unix.c b/src/sys/sys_unix.c new file mode 100644 index 0000000..abbe623 --- /dev/null +++ b/src/sys/sys_unix.c @@ -0,0 +1,818 @@ +/* +=========================================================================== +Copyright (C) 1999-2005 Id Software, Inc. +Copyright (C) 2000-2009 Darklegion Development + +This file is part of Tremulous. + +Tremulous 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. + +Tremulous 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 Tremulous; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +=========================================================================== +*/ + +#include "../qcommon/q_shared.h" +#include "../qcommon/qcommon.h" +#include "sys_local.h" + +#include <signal.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <errno.h> +#include <stdio.h> +#include <dirent.h> +#include <unistd.h> +#include <sys/mman.h> +#include <sys/time.h> +#include <pwd.h> +#include <libgen.h> +#include <fcntl.h> + +qboolean stdinIsATTY; + +// Used to determine where to store user-specific files +static char homePath[ MAX_OSPATH ] = { 0 }; + +/* +================== +Sys_DefaultHomePath +================== +*/ +char *Sys_DefaultHomePath(void) +{ + char *p; + + if( !*homePath ) + { + if( ( p = getenv( "HOME" ) ) != NULL ) + { + Com_sprintf(homePath, sizeof(homePath), "%s%c", p, PATH_SEP); +#ifdef MACOS_X + Q_strcat( homePath, sizeof( homePath ), + "/Library/Application Support/Tremulous" ); +#else + Q_strcat( homePath, sizeof( homePath ), "/.tremulous" ); +#endif + } + } + + return homePath; +} + +#ifndef MACOS_X +/* +================ +Sys_TempPath +================ +*/ +const char *Sys_TempPath( void ) +{ + const char *TMPDIR = getenv( "TMPDIR" ); + + if( TMPDIR == NULL || TMPDIR[ 0 ] == '\0' ) + return "/tmp"; + else + return TMPDIR; +} +#endif + +/* +================ +Sys_Milliseconds +================ +*/ +/* base time in seconds, that's our origin + timeval:tv_sec is an int: + assuming this wraps every 0x7fffffff - ~68 years since the Epoch (1970) - we're safe till 2038 */ +unsigned long sys_timeBase = 0; +/* current time in ms, using sys_timeBase as origin + NOTE: sys_timeBase*1000 + curtime -> ms since the Epoch + 0x7fffffff ms - ~24 days + although timeval:tv_usec is an int, I'm not sure wether it is actually used as an unsigned int + (which would affect the wrap period) */ +int curtime; +int Sys_Milliseconds (void) +{ + struct timeval tp; + + gettimeofday(&tp, NULL); + + if (!sys_timeBase) + { + sys_timeBase = tp.tv_sec; + return tp.tv_usec/1000; + } + + curtime = (tp.tv_sec - sys_timeBase)*1000 + tp.tv_usec/1000; + + return curtime; +} + +#if !id386 +/* +================== +fastftol +================== +*/ +long fastftol( float f ) +{ + return (long)f; +} + +/* +================== +Sys_SnapVector +================== +*/ +void Sys_SnapVector( float *v ) +{ + v[0] = rint(v[0]); + v[1] = rint(v[1]); + v[2] = rint(v[2]); +} +#endif + + +/* +================== +Sys_RandomBytes +================== +*/ +qboolean Sys_RandomBytes( byte *string, int len ) +{ + FILE *fp; + + fp = fopen( "/dev/urandom", "r" ); + if( !fp ) + return qfalse; + + if( !fread( string, sizeof( byte ), len, fp ) ) + { + fclose( fp ); + return qfalse; + } + + fclose( fp ); + return qtrue; +} + +/* +================== +Sys_GetCurrentUser +================== +*/ +char *Sys_GetCurrentUser( void ) +{ + struct passwd *p; + + if ( (p = getpwuid( getuid() )) == NULL ) { + return "player"; + } + return p->pw_name; +} + +/* +================== +Sys_GetClipboardData +================== +*/ +char *Sys_GetClipboardData(void) +{ + return NULL; +} + +#define MEM_THRESHOLD 96*1024*1024 + +/* +================== +Sys_LowPhysicalMemory + +TODO +================== +*/ +qboolean Sys_LowPhysicalMemory( void ) +{ + return qfalse; +} + +/* +================== +Sys_Basename +================== +*/ +const char *Sys_Basename( char *path ) +{ + return basename( path ); +} + +/* +================== +Sys_Dirname +================== +*/ +const char *Sys_Dirname( char *path ) +{ + return dirname( path ); +} + +/* +================== +Sys_Mkdir +================== +*/ +qboolean Sys_Mkdir( const char *path ) +{ + int result = mkdir( path, 0750 ); + + if( result != 0 ) + return errno == EEXIST; + + return qtrue; +} + +/* +================== +Sys_Mkfifo +================== +*/ +FILE *Sys_Mkfifo( const char *ospath ) +{ + FILE *fifo; + int result; + int fn; + struct stat buf; + + // if file already exists AND is a pipefile, remove it + if( !stat( ospath, &buf ) && S_ISFIFO( buf.st_mode ) ) + FS_Remove( ospath ); + + result = mkfifo( ospath, 0600 ); + if( result != 0 ) + return NULL; + + fifo = fopen( ospath, "w+" ); + if( fifo ) + { + fn = fileno( fifo ); + fcntl( fn, F_SETFL, O_NONBLOCK ); + } + + return fifo; +} + +/* +================== +Sys_Cwd +================== +*/ +char *Sys_Cwd( void ) +{ + static char cwd[MAX_OSPATH]; + + char *result = getcwd( cwd, sizeof( cwd ) - 1 ); + if( result != cwd ) + return NULL; + + cwd[MAX_OSPATH-1] = 0; + + return cwd; +} + +/* +============================================================== + +DIRECTORY SCANNING + +============================================================== +*/ + +#define MAX_FOUND_FILES 0x1000 + +/* +================== +Sys_ListFilteredFiles +================== +*/ +void Sys_ListFilteredFiles( const char *basedir, char *subdirs, char *filter, char **list, int *numfiles ) +{ + char search[MAX_OSPATH], newsubdirs[MAX_OSPATH]; + char filename[MAX_OSPATH]; + DIR *fdir; + struct dirent *d; + struct stat st; + + if ( *numfiles >= MAX_FOUND_FILES - 1 ) { + return; + } + + if (strlen(subdirs)) { + Com_sprintf( search, sizeof(search), "%s/%s", basedir, subdirs ); + } + else { + Com_sprintf( search, sizeof(search), "%s", basedir ); + } + + if ((fdir = opendir(search)) == NULL) { + return; + } + + while ((d = readdir(fdir)) != NULL) { + Com_sprintf(filename, sizeof(filename), "%s/%s", search, d->d_name); + if (stat(filename, &st) == -1) + continue; + + if (st.st_mode & S_IFDIR) { + if (Q_stricmp(d->d_name, ".") && Q_stricmp(d->d_name, "..")) { + if (strlen(subdirs)) { + Com_sprintf( newsubdirs, sizeof(newsubdirs), "%s/%s", subdirs, d->d_name); + } + else { + Com_sprintf( newsubdirs, sizeof(newsubdirs), "%s", d->d_name); + } + Sys_ListFilteredFiles( basedir, newsubdirs, filter, list, numfiles ); + } + } + if ( *numfiles >= MAX_FOUND_FILES - 1 ) { + break; + } + Com_sprintf( filename, sizeof(filename), "%s/%s", subdirs, d->d_name ); + if (!Com_FilterPath( filter, filename, qfalse )) + continue; + list[ *numfiles ] = CopyString( filename ); + (*numfiles)++; + } + + closedir(fdir); +} + +/* +================== +Sys_ListFiles +================== +*/ +char **Sys_ListFiles( const char *directory, const char *extension, char *filter, int *numfiles, qboolean wantsubs ) +{ + struct dirent *d; + DIR *fdir; + qboolean dironly = wantsubs; + char search[MAX_OSPATH]; + int nfiles; + char **listCopy; + char *list[MAX_FOUND_FILES]; + int i; + struct stat st; + + int extLen; + + if (filter) { + + nfiles = 0; + Sys_ListFilteredFiles( directory, "", filter, list, &nfiles ); + + list[ nfiles ] = NULL; + *numfiles = nfiles; + + if (!nfiles) + return NULL; + + listCopy = Z_Malloc( ( nfiles + 1 ) * sizeof( *listCopy ) ); + for ( i = 0 ; i < nfiles ; i++ ) { + listCopy[i] = list[i]; + } + listCopy[i] = NULL; + + return listCopy; + } + + if ( !extension) + extension = ""; + + if ( extension[0] == '/' && extension[1] == 0 ) { + extension = ""; + dironly = qtrue; + } + + extLen = strlen( extension ); + + // search + nfiles = 0; + + if ((fdir = opendir(directory)) == NULL) { + *numfiles = 0; + return NULL; + } + + while ((d = readdir(fdir)) != NULL) { + Com_sprintf(search, sizeof(search), "%s/%s", directory, d->d_name); + if (stat(search, &st) == -1) + continue; + if ((dironly && !(st.st_mode & S_IFDIR)) || + (!dironly && (st.st_mode & S_IFDIR))) + continue; + + if (*extension) { + if ( strlen( d->d_name ) < strlen( extension ) || + Q_stricmp( + d->d_name + strlen( d->d_name ) - strlen( extension ), + extension ) ) { + continue; // didn't match + } + } + + if ( nfiles == MAX_FOUND_FILES - 1 ) + break; + list[ nfiles ] = CopyString( d->d_name ); + nfiles++; + } + + list[ nfiles ] = NULL; + + closedir(fdir); + + // return a copy of the list + *numfiles = nfiles; + + if ( !nfiles ) { + return NULL; + } + + listCopy = Z_Malloc( ( nfiles + 1 ) * sizeof( *listCopy ) ); + for ( i = 0 ; i < nfiles ; i++ ) { + listCopy[i] = list[i]; + } + listCopy[i] = NULL; + + return listCopy; +} + +/* +================== +Sys_FreeFileList +================== +*/ +void Sys_FreeFileList( char **list ) +{ + int i; + + if ( !list ) { + return; + } + + for ( i = 0 ; list[i] ; i++ ) { + Z_Free( list[i] ); + } + + Z_Free( list ); +} + +/* +================== +Sys_Sleep + +Block execution for msec or until input is recieved. +================== +*/ +void Sys_Sleep( int msec ) +{ + if( msec == 0 ) + return; + + if( stdinIsATTY ) + { + fd_set fdset; + + FD_ZERO(&fdset); + FD_SET(STDIN_FILENO, &fdset); + if( msec < 0 ) + { + select(STDIN_FILENO + 1, &fdset, NULL, NULL, NULL); + } + else + { + struct timeval timeout; + + timeout.tv_sec = msec/1000; + timeout.tv_usec = (msec%1000)*1000; + select(STDIN_FILENO + 1, &fdset, NULL, NULL, &timeout); + } + } + else + { + // With nothing to select() on, we can't wait indefinitely + if( msec < 0 ) + msec = 10; + + usleep( msec * 1000 ); + } +} + +/* +============== +Sys_ErrorDialog + +Display an error message +============== +*/ +void Sys_ErrorDialog( const char *error ) +{ + char buffer[ 1024 ]; + unsigned int size; + int f = -1; + const char *homepath = Cvar_VariableString( "fs_homepath" ); + const char *gamedir = Cvar_VariableString( "fs_game" ); + const char *fileName = "crashlog.txt"; + char *ospath = FS_BuildOSPath( homepath, gamedir, fileName ); + + Sys_Print( va( "%s\n", error ) ); + +#ifndef DEDICATED + Sys_Dialog( DT_ERROR, va( "%s. See \"%s\" for details.", error, ospath ), "Error" ); +#endif + + // Make sure the write path for the crashlog exists... + if( FS_CreatePath( ospath ) ) { + Com_Printf( "ERROR: couldn't create path '%s' for crash log.\n", ospath ); + return; + } + + // We might be crashing because we maxed out the Quake MAX_FILE_HANDLES, + // which will come through here, so we don't want to recurse forever by + // calling FS_FOpenFileWrite()...use the Unix system APIs instead. + f = open( ospath, O_CREAT | O_TRUNC | O_WRONLY, 0640 ); + if( f == -1 ) + { + Com_Printf( "ERROR: couldn't open %s\n", fileName ); + return; + } + + // We're crashing, so we don't care much if write() or close() fails. + while( ( size = CON_LogRead( buffer, sizeof( buffer ) ) ) > 0 ) { + if( write( f, buffer, size ) != size ) { + Com_Printf( "ERROR: couldn't fully write to %s\n", fileName ); + break; + } + } + + close( f ); +} + +#ifndef MACOS_X +/* +============== +Sys_ZenityCommand +============== +*/ +static int Sys_ZenityCommand( dialogType_t type, const char *message, const char *title ) +{ + const char *options = ""; + char command[ 1024 ]; + + switch( type ) + { + default: + case DT_INFO: options = "--info"; break; + case DT_WARNING: options = "--warning"; break; + case DT_ERROR: options = "--error"; break; + case DT_YES_NO: options = "--question --ok-label=\"Yes\" --cancel-label=\"No\""; break; + case DT_OK_CANCEL: options = "--question --ok-label=\"OK\" --cancel-label=\"Cancel\""; break; + } + + Com_sprintf( command, sizeof( command ), "zenity %s --text=\"%s\" --title=\"%s\"", + options, message, title ); + + return system( command ); +} + +/* +============== +Sys_KdialogCommand +============== +*/ +static int Sys_KdialogCommand( dialogType_t type, const char *message, const char *title ) +{ + const char *options = ""; + char command[ 1024 ]; + + switch( type ) + { + default: + case DT_INFO: options = "--msgbox"; break; + case DT_WARNING: options = "--sorry"; break; + case DT_ERROR: options = "--error"; break; + case DT_YES_NO: options = "--warningyesno"; break; + case DT_OK_CANCEL: options = "--warningcontinuecancel"; break; + } + + Com_sprintf( command, sizeof( command ), "kdialog %s \"%s\" --title \"%s\"", + options, message, title ); + + return system( command ); +} + +/* +============== +Sys_XmessageCommand +============== +*/ +static int Sys_XmessageCommand( dialogType_t type, const char *message, const char *title ) +{ + const char *options = ""; + char command[ 1024 ]; + + switch( type ) + { + default: options = "-buttons OK"; break; + case DT_YES_NO: options = "-buttons Yes:0,No:1"; break; + case DT_OK_CANCEL: options = "-buttons OK:0,Cancel:1"; break; + } + + Com_sprintf( command, sizeof( command ), "xmessage -center %s \"%s\"", + options, message ); + + return system( command ); +} + +/* +============== +Sys_Dialog + +Display a *nix dialog box +============== +*/ +dialogResult_t Sys_Dialog( dialogType_t type, const char *message, const char *title ) +{ + typedef enum + { + NONE = 0, + ZENITY, + KDIALOG, + XMESSAGE, + NUM_DIALOG_PROGRAMS + } dialogCommandType_t; + typedef int (*dialogCommandBuilder_t)( dialogType_t, const char *, const char * ); + + const char *session = getenv( "DESKTOP_SESSION" ); + qboolean tried[ NUM_DIALOG_PROGRAMS ] = { qfalse }; + dialogCommandBuilder_t commands[ NUM_DIALOG_PROGRAMS ] = { NULL }; + dialogCommandType_t preferredCommandType = NONE; + + commands[ ZENITY ] = &Sys_ZenityCommand; + commands[ KDIALOG ] = &Sys_KdialogCommand; + commands[ XMESSAGE ] = &Sys_XmessageCommand; + + // This may not be the best way + if( !Q_stricmp( session, "gnome" ) ) + preferredCommandType = ZENITY; + else if( !Q_stricmp( session, "kde" ) ) + preferredCommandType = KDIALOG; + + while( 1 ) + { + int i; + int exitCode; + + for( i = NONE + 1; i < NUM_DIALOG_PROGRAMS; i++ ) + { + if( preferredCommandType != NONE && preferredCommandType != i ) + continue; + + if( !tried[ i ] ) + { + exitCode = commands[ i ]( type, message, title ); + + if( exitCode >= 0 ) + { + switch( type ) + { + case DT_YES_NO: return exitCode ? DR_NO : DR_YES; + case DT_OK_CANCEL: return exitCode ? DR_CANCEL : DR_OK; + default: return DR_OK; + } + } + + tried[ i ] = qtrue; + + // The preference failed, so start again in order + if( preferredCommandType != NONE ) + { + preferredCommandType = NONE; + break; + } + } + } + + for( i = NONE + 1; i < NUM_DIALOG_PROGRAMS; i++ ) + { + if( !tried[ i ] ) + continue; + } + + break; + } + + Com_DPrintf( S_COLOR_YELLOW "WARNING: failed to show a dialog\n" ); + return DR_OK; +} +#endif + +/* +============== +Sys_GLimpSafeInit + +Unix specific "safe" GL implementation initialisation +============== +*/ +void Sys_GLimpSafeInit( void ) +{ + // NOP +} + +/* +============== +Sys_GLimpInit + +Unix specific GL implementation initialisation +============== +*/ +void Sys_GLimpInit( void ) +{ + // NOP +} + +/* +============== +Sys_PlatformInit + +Unix specific initialisation +============== +*/ +void Sys_PlatformInit( void ) +{ + const char* term = getenv( "TERM" ); + + signal( SIGHUP, Sys_SigHandler ); + signal( SIGQUIT, Sys_SigHandler ); + signal( SIGTRAP, Sys_SigHandler ); + signal( SIGIOT, Sys_SigHandler ); + signal( SIGBUS, Sys_SigHandler ); + + stdinIsATTY = isatty( STDIN_FILENO ) && + !( term && ( !strcmp( term, "raw" ) || !strcmp( term, "dumb" ) ) ); +} + +/* +============== +Sys_PlatformExit + +Unix specific deinitialisation +============== +*/ +void Sys_PlatformExit( void ) +{ +} + +/* +============== +Sys_SetEnv + +set/unset environment variables (empty value removes it) +============== +*/ + +void Sys_SetEnv(const char *name, const char *value) +{ + if(value && *value) + setenv(name, value, 1); + else + unsetenv(name); +} + +/* +============== +Sys_PID +============== +*/ +int Sys_PID( void ) +{ + return getpid( ); +} + +/* +============== +Sys_PIDIsRunning +============== +*/ +qboolean Sys_PIDIsRunning( int pid ) +{ + return kill( pid, 0 ) == 0; +} |