mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-06 05:01:26 +00:00
163 lines
2.7 KiB
C
163 lines
2.7 KiB
C
/*
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cmdlib.c
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Command library
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Copyright (C) 1996-1997 id Software, Inc.
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Copyright (C) 2001 Jeff Teunissen <deek@dusknet.dhs.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (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.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public
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License along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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static const char rcsid[] =
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"$Id$";
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stdlib.h>
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#include <errno.h>
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#ifdef NeXT
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#include <libc.h>
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#endif
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#include <QF/sys.h>
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#include "cmdlib.h"
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/*
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Error
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For abnormal program terminations
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*/
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void
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Error (char *error, ...)
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{
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va_list argptr;
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printf ("************ ERROR ************\n");
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va_start (argptr, error);
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vprintf (error, argptr);
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va_end (argptr);
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printf ("\n");
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exit (1);
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}
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/*
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=============================================================================
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MISC FUNCTIONS
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=============================================================================
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*/
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/*
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FileLength
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*/
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int
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FileLength (FILE *f)
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{
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int pos;
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int end;
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pos = ftell (f);
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fseek (f, 0, SEEK_END);
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end = ftell (f);
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fseek (f, pos, SEEK_SET);
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return end;
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}
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FILE *
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SafeOpenWrite (const char *filename)
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{
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FILE *f;
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f = fopen (filename, "wb");
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if (!f)
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Error ("Error opening %s: %s", filename, strerror (errno));
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return f;
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}
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FILE *
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SafeOpenRead (const char *filename)
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{
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FILE *f;
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f = fopen (filename, "rb");
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if (!f)
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Error ("Error opening %s: %s", filename, strerror (errno));
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return f;
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}
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void
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SafeRead (FILE *f, void *buffer, int count)
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{
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if (fread (buffer, 1, count, f) != (size_t) count)
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Error ("File read failure");
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}
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void
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SafeWrite (FILE *f, void *buffer, int count)
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{
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if (fwrite (buffer, 1, count, f) != (size_t) count)
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Error ("File read failure");
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}
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/*
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LoadFile
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*/
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int
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LoadFile (const char *filename, void **bufferptr)
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{
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FILE *f;
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int length;
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void *buffer;
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f = SafeOpenRead (filename);
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length = FileLength (f);
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buffer = malloc (length + 1);
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SYS_CHECKMEM (buffer);
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((char *) buffer)[length] = 0;
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SafeRead (f, buffer, length);
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fclose (f);
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*bufferptr = buffer;
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return length;
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}
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