/* Make a temporary file name. The format parameter is something like "%s.jpg"
* and will be expanded to something like "/tmp/vips-12-34587.jpg".
*
* You need to free the result. A real file will also be created, though we
* delete it for you.
*/
char *
vips__temp_name( const char *format )
{
static int serial = 1;
char file[FILENAME_MAX];
char file2[FILENAME_MAX];
char *name;
int fd;
vips_snprintf( file, FILENAME_MAX, "vips-%d-XXXXXX", serial++ );
vips_snprintf( file2, FILENAME_MAX, format, file );
name = g_build_filename( vips__temp_dir(), file2, NULL );
if( (fd = g_mkstemp( name )) == -1 ) {
vips_error( "tempfile",
_( "unable to make temporary file %s" ), name );
g_free( name );
return( NULL );
}
close( fd );
g_unlink( name );
return( name );
}
/* Make a temporary file name. The format parameter is something like "%s.jpg"
* and will be expanded to something like "/tmp/vips-12-34587.jpg".
*
* You need to free the result.
*/
char *
vips__temp_name( const char *format )
{
static int serial = 0;
char file[FILENAME_MAX];
char file2[FILENAME_MAX];
char *name;
vips_snprintf( file, FILENAME_MAX, "vips-%d-%u",
serial++, g_random_int() );
vips_snprintf( file2, FILENAME_MAX, format, file );
name = g_build_filename( vips__temp_dir(), file2, NULL );
/* We could use something like g_mkstemp() to guarantee uniqueness
* across processes, but the extra FS calls can be difficult for
* selinux.
*
* g_random_int() should be safe enough -- it's seeded from time(), so
* it ought not to collide often -- and on linux at least we never
* actually use these filenames in the filesystem anyway.
*/
return( name );
}
