From c2f1f60fc2f631acccab6946ab16212b0a5920b7 Mon Sep 17 00:00:00 2001 From: yugui Date: Thu, 25 Dec 2008 09:54:32 +0000 Subject: merges r20954 from trunk into ruby_1_9_1. * io.c (rb_io_init_copy): call io_seek only if io_tell succeeds. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@21018 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- io.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'io.c') diff --git a/io.c b/io.c index 27da626ffe..6057992591 100644 --- a/io.c +++ b/io.c @@ -5338,6 +5338,7 @@ rb_io_init_copy(VALUE dest, VALUE io) rb_io_t *fptr, *orig; int fd; VALUE write_io; + off_t pos; io = rb_io_get_io(io); if (dest == io) return dest; @@ -5356,7 +5357,9 @@ rb_io_init_copy(VALUE dest, VALUE io) fd = ruby_dup(orig->fd); fptr->fd = fd; - io_seek(fptr, io_tell(orig), SEEK_SET); + pos = io_tell(orig); + if (0 <= pos) + io_seek(fptr, pos, SEEK_SET); if (fptr->mode & FMODE_BINMODE) { rb_io_binmode(dest); } -- cgit v1.2.3