Xash3D FWGS engine.
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/*
utils.c - Useful helper functions
Copyright (C) 2020 Andrey Akhmichin
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 3 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.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <errno.h>
#include "xash3d_types.h"
#include "port.h"
#include "crtlib.h"
#include "utils.h"
/*
============
MakeDirectory
============
*/
qboolean MakeDirectory( const char *path )
{
if( -1 == _mkdir( path ))
{
if( errno == EEXIST )
{
// TODO: when filesystem library will be ready
// use FS_SysFolderExists here or replace this whole function
// with FS_CreatePath
#if XASH_WIN32
DWORD dwFlags = GetFileAttributes( path );
return ( dwFlags != -1 ) && ( dwFlags & FILE_ATTRIBUTE_DIRECTORY );
#else
struct stat buf;
if( !stat( path, &buf ))
return S_ISDIR( buf.st_mode );
#endif
}
return false;
}
return true;
}
/*
============
MakeFullPath
============
*/
qboolean MakeFullPath( const char *path )
{
char *p = (char *)path, tmp;
for( ; *p; )
{
p = Q_strpbrk( p, "/\\" );
if( p )
{
tmp = *p;
*p = '\0';
}
if( !MakeDirectory( path ))
{
fprintf( stderr, "ERROR: Couldn't create directory %s\n", path );
return false;
}
if( !p )
break;
*p++ = tmp;
}
return true;
}
/*
============
ExtractFileName
============
*/
void ExtractFileName( char *name, size_t size )
{
char tmp[MAX_SYSPATH];
if( !( name && *name ) || size <= 0 )
return;
name[size - 1] = '\0';
if( Q_strpbrk( name, "/\\" ))
{
Q_strncpy( tmp, COM_FileWithoutPath( name ), sizeof( tmp ));
Q_strncpy( name, tmp, size );
}
}
/*
============
GetFileSize
============
*/
off_t GetSizeOfFile( FILE *fp )
{
struct stat st;
int fd;
fd = fileno( fp );
fstat( fd, &st );
return st.st_size;
}
/*
============
LoadFile
============
*/
byte *LoadFile( const char *filename, off_t *size )
{
FILE *fp;
byte *buf;
fp = fopen( filename, "rb" );
if( !fp )
return NULL;
*size = GetSizeOfFile( fp );
buf = malloc( *size );
if( !buf )
return NULL;
fread( buf, *size, 1, fp );
fclose( fp );
return buf;
}