197 lines
2.9 KiB
C++
197 lines
2.9 KiB
C++
/*
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Copyright (C) 1996-1997 Id Software, Inc.
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Copyright (C) 1997 Greg Lewis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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See file, 'COPYING', for details.
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*/
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/*
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File source file
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*/
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#include <stdarg.h>
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#include "qbsp.h"
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#include "file.h"
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/*
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==================
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File
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==================
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*/
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File::File(void)
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{
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fp = NULL;
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}
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/*
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==================
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~File
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==================
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*/
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File::~File(void)
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{
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if (fp)
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fclose(fp);
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}
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/*
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============
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fOpen
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============
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*/
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bool File::fOpen(char *szFilename, char *szMode, bool fNoFail)
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{
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fp = fopen(szFilename, szMode);
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if (!fp)
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if (fNoFail)
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Message(msgError, errOpenFailed, szFilename, strerror(errno));
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else
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return false;
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return true;
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}
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/*
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=============
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Close
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=============
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*/
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void File::Close(void)
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{
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if (fp)
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fclose(fp);
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fp = NULL;
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}
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/*
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==============
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LoadFile
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==============
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*/
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int File::LoadFile(char *szFile, void **ppBuffer, bool fNoFail)
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{
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int cLen;
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if (!fOpen(szFile, "rb", fNoFail))
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return 0;
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cLen = Length();
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*ppBuffer = (char *)AllocMem(OTHER, cLen+1, false);
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((char *)*ppBuffer)[cLen] = 0;
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Read(*ppBuffer, cLen);
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Close();
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return cLen;
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}
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/*
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==================
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Printf
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==================
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*/
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void File::Printf(char *szFormat, ...)
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{
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char szBuffer[512];
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va_list argptr;
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if (!fp)
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return;
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va_start(argptr, szFormat);
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vsprintf(szBuffer, szFormat, argptr);
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if (fprintf(fp, "%s", szBuffer) < 0)
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Message(msgError, errWriteFailure);
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va_end(argptr);
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}
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/*
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========
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Read
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========
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*/
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void File::Read(void *pBuffer, int cLen)
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{
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// Fails silently if fp == NULL
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if (fp && fread(pBuffer, 1, cLen, fp) != (size_t)cLen)
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Message(msgError, errReadFailure);
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}
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/*
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========
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Write
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========
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*/
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void File::Write(void *pBuffer, int cLen)
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{
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// Fails silently if fp == NULL
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if (fp && fwrite(pBuffer, 1, cLen, fp) != (size_t)cLen)
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Message(msgError, errWriteFailure);
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}
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/*
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=========
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Seek
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=========
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*/
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int File::Seek(int Offset, int origin)
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{
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return fseek(fp, Offset, origin);
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}
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/*
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=========
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Position
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=========
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*/
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int File::Position(void)
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{
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return ftell(fp);
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}
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/*
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==========
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Length
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==========
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*/
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int File::Length(void)
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{
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int cCur;
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int cEnd;
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cCur = ftell(fp);
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fseek(fp, 0, SEEK_END);
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cEnd = ftell(fp);
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fseek(fp, cCur, SEEK_SET);
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return cEnd;
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} |