diff options
Diffstat (limited to 'stream.c')
-rw-r--r-- | stream.c | 11 |
1 files changed, 9 insertions, 2 deletions
@@ -2082,14 +2082,21 @@ val open_file(val path, val mode_str) val open_tail(val path, val mode_str, val seek_end_p) { + FILE *f = w_fopen(c_str(path), c_str(mode_str)); struct stdio_handle *h; val stream; unsigned long state = 0; - stream = make_tail_stream(0, path); + if (f && seek_end_p) + if (fseek(f, 0, SEEK_END) < 0) + uw_throwf(file_error_s, lit("error seeking to end of ~a: ~a/~s"), + path, num(errno), string_utf8(strerror(errno)), nao); + + stream = make_tail_stream(f, path); h = (struct stdio_handle *) stream->co.handle; h->mode = mode_str; - tail_strategy(stream, &state); + if (!f) + tail_strategy(stream, &state); return stream; } |