/* quakeio.c (description) Copyright (C) 1996-1997 Id Software, Inc. Copyright (C) 1999,2000 contributors of the QuakeForge project Please see the file "AUTHORS" for a list of contributors 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: Free Software Foundation, Inc. 59 Temple Place - Suite 330 Boston, MA 02111-1307, USA $Id$ */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #ifdef HAVE_ZLIB # include #endif #ifdef HAVE_MALLOC_H # include #endif #ifdef HAVE_STRING_H # include #endif #ifdef HAVE_STRINGS_H # include #endif #ifdef WIN32 # include # include #else # include #endif #ifdef HAVE_UNISTD_H # include #endif #ifdef _MSC_VER # define _POSIX_ #endif #include #include #include #include "QF/vfs.h" #include "QF/vfile.h" #ifdef WIN32 # ifndef __BORLANDC__ # define setmode _setmode # define O_BINARY _O_BINARY # endif #endif struct VFile_s { FILE *file; #ifdef HAVE_ZLIB gzFile *gzfile; #endif }; void Qexpand_squiggle (const char *path, char *dest) { char *home; #ifndef _WIN32 struct passwd *pwd_ent; #endif if (strncmp (path, "~/", 2) != 0) { strcpy (dest, path); return; } #ifdef _WIN32 // LordHavoc: first check HOME to duplicate previous version behavior // (also handy if someone wants it somewhere other than their // windows directory) home = getenv ("HOME"); if (!home || !home[0]) home = getenv ("WINDIR"); #else if ((pwd_ent = getpwuid (getuid ()))) { home = pwd_ent->pw_dir; } else home = getenv ("HOME"); #endif if (home) { strcpy (dest, home); strncat (dest, path + 1, MAX_OSPATH - strlen (dest)); // skip // leading ~ } else strcpy (dest, path); } int Qrename (const char *old, const char *new) { char e_old[PATH_MAX]; char e_new[PATH_MAX]; Qexpand_squiggle (old, e_old); Qexpand_squiggle (new, e_new); return rename (e_old, e_new); } VFile * Qopen (const char *path, const char *mode) { VFile *file; char m[80], *p; int zip = 0; char e_path[PATH_MAX]; Qexpand_squiggle (path, e_path); path = e_path; for (p = m; *mode && p - m < (sizeof (m) - 1); mode++) { if (*mode == 'z') { zip = 1; continue; } #ifndef HAVE_ZLIB if (strchr ("0123456789fh", *mode)) { continue; } #endif *p++ = *mode; } *p = 0; file = calloc (sizeof (*file), 1); if (!file) return 0; #ifdef HAVE_ZLIB if (zip) { file->gzfile = gzopen (path, m); if (!file->gzfile) { free (file); return 0; } } else #endif { file->file = fopen (path, m); if (!file->file) { free (file); return 0; } } return file; } VFile * Qdopen (int fd, const char *mode) { VFile *file; char m[80], *p; int zip = 0; for (p = m; *mode && p - m < (sizeof (m) - 1); mode++) { if (*mode == 'z') { zip = 1; continue; } *p++ = *mode; } *p = 0; file = calloc (sizeof (*file), 1); if (!file) return 0; #ifdef HAVE_ZLIB if (zip) { file->gzfile = gzdopen (fd, m); if (!file->gzfile) { free (file); return 0; } } else #endif { file->file = fdopen (fd, m); if (!file->file) { free (file); return 0; } } #ifdef WIN32 if (file->file) setmode (_fileno (file->file), O_BINARY); #endif return file; } void Qclose (VFile *file) { if (file->file) fclose (file->file); #ifdef HAVE_ZLIB else gzclose (file->gzfile); #endif free (file); } int Qread (VFile *file, void *buf, int count) { if (file->file) return fread (buf, 1, count, file->file); #ifdef HAVE_ZLIB else return gzread (file->gzfile, buf, count); #else return -1; #endif } int Qwrite (VFile *file, void *buf, int count) { if (file->file) return fwrite (buf, 1, count, file->file); #ifdef HAVE_ZLIB else return gzwrite (file->gzfile, buf, count); #else return -1; #endif } int Qprintf (VFile *file, const char *fmt, ...) { va_list args; int ret = -1; va_start (args, fmt); if (file->file) ret = vfprintf (file->file, fmt, args); #ifdef HAVE_ZLIB else { char buf[4096]; va_start (args, fmt); #ifdef HAVE_VSNPRINTF (void) vsnprintf (buf, sizeof (buf), fmt, args); #else (void) vsprintf (buf, fmt, args); #endif va_end (args); ret = strlen (buf); /* some *snprintf don't return the nb of bytes written */ if (ret > 0) ret = gzwrite (file->gzfile, buf, (unsigned) ret); } #endif va_end (args); return ret; } char * Qgets (VFile *file, char *buf, int count) { if (file->file) return fgets (buf, count, file->file); #ifdef HAVE_ZLIB else return gzgets (file->gzfile, buf, count); #else return 0; #endif } int Qgetc (VFile *file) { if (file->file) return fgetc (file->file); #ifdef HAVE_ZLIB else return gzgetc (file->gzfile); #else return -1; #endif } int Qputc (VFile *file, int c) { if (file->file) return fputc (c, file->file); #ifdef HAVE_ZLIB else return gzputc (file->gzfile, c); #else return -1; #endif } int Qseek (VFile *file, long offset, int whence) { if (file->file) return fseek (file->file, offset, whence); #ifdef HAVE_ZLIB else return gzseek (file->gzfile, offset, whence); #else return -1; #endif } long Qtell (VFile *file) { if (file->file) return ftell (file->file); #ifdef HAVE_ZLIB else return gztell (file->gzfile); #else return -1; #endif } int Qflush (VFile *file) { if (file->file) return fflush (file->file); #ifdef HAVE_ZLIB else return gzflush (file->gzfile, Z_SYNC_FLUSH); #else return -1; #endif } int Qeof (VFile *file) { if (file->file) return feof (file->file); #ifdef HAVE_ZLIB else return gzeof (file->gzfile); #else return -1; #endif } /* Qgetline Dynamic length version of Qgets. DO NOT free the buffer. */ char * Qgetline (VFile *file) { static int size = 256; static char *buf = 0; int len; if (!buf) buf = malloc (size); if (!Qgets (file, buf, size)) return 0; len = strlen (buf); while (buf[len - 1] != '\n') { char *t = realloc (buf, size + 256); if (!t) return 0; buf = t; size += 256; if (!Qgets (file, buf + len, size - len)) break; len = strlen (buf); } return buf; } int Qgetpos (VFile *file, fpos_t * pos) { #ifdef HAVE_FPOS_T_STRUCT pos->__pos = Qtell (file); return pos->__pos == -1 ? -1 : 0; #else *pos = Qtell (file); return *pos == -1 ? -1 : 0; #endif } int Qsetpos (VFile *file, fpos_t * pos) { #ifdef HAVE_FPOS_T_STRUCT return Qseek (file, pos->__pos, 0); #else return Qseek (file, *pos, 0); #endif }