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* io.c (io_reopen): check STDIN, STDOUT and STDERR mode according to

stdio streams.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15473 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
akr 2008-02-14 12:01:50 +00:00
parent a5c05a9ace
commit 433fbebfbc
3 changed files with 26 additions and 9 deletions

View file

@ -1,3 +1,8 @@
Thu Feb 14 21:00:14 2008 Tanaka Akira <akr@fsij.org>
* io.c (io_reopen): check STDIN, STDOUT and STDERR mode according to
stdio streams.
Thu Feb 14 16:07:40 2008 Yukihiro Matsumoto <matz@ruby-lang.org>
* test/ruby/test_math.rb: actual-expected argument ordering for

View file

@ -52,3 +52,20 @@ assert_equal 'ok', %q{
File.unlink(tmpname)
:ok
}
assert_equal 'ok', %q{
require 'tmpdir'
begin
tmpname = "#{Dir.tmpdir}/ruby-btest-#{$$}-#{rand(0x100000000).to_s(36)}"
rw = File.open(tmpname, File::RDWR|File::CREAT|File::EXCL)
rescue Errno::EEXIST
retry
end
save = STDIN.dup
STDIN.reopen(rw)
STDIN.print "a"
STDIN.reopen(save)
rw.close
File.unlink(tmpname)
:ok
}

13
io.c
View file

@ -4112,8 +4112,9 @@ io_reopen(VALUE io, VALUE nfile)
if (fptr == orig) return io;
#if !defined __CYGWIN__
if (IS_PREP_STDIO(fptr)) {
if (((fptr->mode & FMODE_READWRITE) & (orig->mode & FMODE_READWRITE)) !=
(fptr->mode & FMODE_READWRITE)) {
if ((fptr->stdio_file == stdin && !(orig->mode & FMODE_READABLE)) ||
(fptr->stdio_file == stdout && !(orig->mode & FMODE_WRITABLE)) ||
(fptr->stdio_file == stderr && !(orig->mode & FMODE_WRITABLE))) {
rb_raise(rb_eArgError,
"%s can't change access mode from \"%s\" to \"%s\"",
PREP_STDIO_NAME(fptr), rb_io_flags_mode(fptr->mode),
@ -4132,13 +4133,7 @@ io_reopen(VALUE io, VALUE nfile)
}
/* copy rb_io_t structure */
if (fptr->mode & FMODE_PREP) {
int mask = FMODE_PREP|FMODE_READWRITE;
fptr->mode = (orig->mode & ~mask)|(fptr->mode & mask);
}
else {
fptr->mode = orig->mode;
}
fptr->mode = orig->mode | (fptr->mode & FMODE_PREP);
fptr->pid = orig->pid;
fptr->lineno = orig->lineno;
if (fptr->path) free(fptr->path);