char *getS0( picoMemStream_t *fp )
{
char *s;
int i, c, len, pos;
if ( flen == FLEN_ERROR ) return NULL;
pos = _pico_memstream_tell( fp );
for ( i = 1; ; i++ ) {
c = _pico_memstream_getc( fp );
if ( c <= 0 ) break;
}
if ( c < 0 ) {
flen = FLEN_ERROR;
return NULL;
}
if ( i == 1 ) {
if ( _pico_memstream_seek( fp, pos + 2, PICO_SEEK_SET ))
flen = FLEN_ERROR;
else
flen += 2;
return NULL;
}
len = i + ( i & 1 );
s = _pico_alloc( len );
if ( !s ) {
flen = FLEN_ERROR;
return NULL;
}
if ( _pico_memstream_seek( fp, pos, PICO_SEEK_SET )) {
flen = FLEN_ERROR;
return NULL;
}
if ( 1 != _pico_memstream_read( fp, s, len )) {
flen = FLEN_ERROR;
return NULL;
}
flen += len;
return s;
}
void *getbytes( picoMemStream_t *fp, size_t size )
{
void *data;
if ( flen == FLEN_ERROR ) return NULL;
if ( size < 0 ) {
flen = FLEN_ERROR;
return NULL;
}
data = _pico_alloc( size );
if ( !data ) {
flen = FLEN_ERROR;
return NULL;
}
if ( 1 != _pico_memstream_read( fp, data, size )) {
flen = FLEN_ERROR;
_pico_free( data );
return NULL;
}
flen += size;
return data;
}
