diff options
Diffstat (limited to 'src/sys/sys_unix.c')
| -rw-r--r-- | src/sys/sys_unix.c | 450 |
1 files changed, 450 insertions, 0 deletions
diff --git a/src/sys/sys_unix.c b/src/sys/sys_unix.c new file mode 100644 index 00000000..8a8240bd --- /dev/null +++ b/src/sys/sys_unix.c @@ -0,0 +1,450 @@ +/* +=========================================================================== +Copyright (C) 1999-2005 Id Software, Inc. + +This file is part of Quake III Arena source code. + +Quake III Arena source code 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. + +Quake III Arena source code 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 Quake III Arena source code; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +=========================================================================== +*/ +#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 "../qcommon/q_shared.h" +#include "../qcommon/qcommon.h" + +// 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 ) + { + Q_strncpyz( homePath, p, sizeof( homePath ) ); +#ifdef MACOS_X + Q_strcat( homePath, sizeof( homePath ), "/Library/Application Support/Quake3" ); +#else + Q_strcat( homePath, sizeof( homePath ), "/.q3a" ); +#endif + if( mkdir( homePath, 0777 ) ) + { + if( errno != EEXIST ) + { + Sys_Error( "Unable to create directory \"%s\", error is %s(%d)\n", + homePath, strerror( errno ), errno ); + } + } + } + } + + return homePath; +} + +/* +================ +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 + using unsigned long data type to work right with Sys_XTimeToSysTime */ +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 +================== +*/ +void Sys_Mkdir( const char *path ) +{ + mkdir( path, 0777 ); +} + +/* +================== +Sys_Cwd +================== +*/ +char *Sys_Cwd( void ) +{ + static char cwd[MAX_OSPATH]; + + getcwd( cwd, sizeof( cwd ) - 1 ); + 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 ); +} + +#ifdef MACOS_X +/* +================= +Sys_StripAppBundle + +Discovers if passed dir is suffixed with the directory structure of a Mac OS X +.app bundle. If it is, the .app directory structure is stripped off the end and +the result is returned. If not, dir is returned untouched. +================= +*/ +char *Sys_StripAppBundle( char *dir ) +{ + static char cwd[MAX_OSPATH]; + + Q_strncpyz(cwd, dir, sizeof(cwd)); + if(strcmp(Sys_Basename(cwd), "MacOS")) + return dir; + Q_strncpyz(cwd, Sys_Dirname(cwd), sizeof(cwd)); + if(strcmp(Sys_Basename(cwd), "Contents")) + return dir; + Q_strncpyz(cwd, Sys_Dirname(cwd), sizeof(cwd)); + if(!strstr(Sys_Basename(cwd), ".app")) + return dir; + Q_strncpyz(cwd, Sys_Dirname(cwd), sizeof(cwd)); + return cwd; +} +#endif // MACOS_X |