move fd, fd2, pid fields before the bitfield flags while keeping the pointer field last. this preserves the 24-byte struct size (same as 3.4.0) while restoring fd to offset 0 (same as 3.3.0). some external gems (e.g. mruby-polarssl) pass struct mrb_io pointers directly to libraries like mbedtls that expect an int fd at offset 0. the 3.4.0 reorder moved bitfield flags to offset 0, causing these gems to read garbage instead of the file descriptor. fixes #6713 Co-authored-by: Claude <noreply@anthropic.com>
mruby-io
IO and File classes for mruby
Installation
Add the line below to your build configuration.
conf.gem core: 'mruby-io'
Implemented methods
IO
| method | mruby-io | memo |
|---|---|---|
| IO.binread | ||
| IO.binwrite | ||
| IO.copy_stream | ||
| IO.new, IO.for_fd, IO.open | o | |
| IO.foreach | ||
| IO.pipe | o | |
| IO.popen | o | |
| IO.read | o | |
| IO.readlines | ||
| IO.select | o | |
| IO.sysopen | o | |
| IO.try_convert | ||
| IO.write | ||
| IO#<< | ||
| IO#advise | ||
| IO#autoclose= | ||
| IO#autoclose? | ||
| IO#binmode | ||
| IO#binmode? | ||
| IO#bytes | obsolete | |
| IO#chars | obsolete | |
| IO#clone, IO#dup | o | |
| IO#close | o | |
| IO#close_on_exec= | o | |
| IO#close_on_exec? | o | |
| IO#close_read | ||
| IO#close_write | ||
| IO#closed? | o | |
| IO#codepoints | obsolete | |
| IO#each_byte | o | |
| IO#each_char | o | |
| IO#each_codepoint | ||
| IO#each_line | o | |
| IO#eof, IO#eof? | o | |
| IO#external_encoding | ||
| IO#fcntl | ||
| IO#fdatasync | ||
| IO#fileno, IO#to_i | o | |
| IO#flush | o | |
| IO#fsync | ||
| IO#getbyte | o | |
| IO#getc | o | |
| IO#gets | o | |
| IO#internal_encoding | ||
| IO#ioctl | ||
| IO#isatty, IO#tty? | o | |
| IO#lineno | ||
| IO#lineno= | ||
| IO#lines | obsolete | |
| IO#pid | o | |
| IO#pos, IO#tell | o | |
| IO#pos= | o | |
| IO#print | o | |
| IO#printf | o | |
| IO#putc | ||
| IO#puts | o | |
| IO#read | o | |
| IO#read_nonblock | ||
| IO#readbyte | o | |
| IO#readchar | o | |
| IO#readline | o | |
| IO#readlines | o | |
| IO#readpartial | ||
| IO#reopen | ||
| IO#rewind | ||
| IO#seek | o | |
| IO#set_encoding | ||
| IO#stat | ||
| IO#sync | o | |
| IO#sync= | o | |
| IO#sysread | o | |
| IO#sysseek | o | |
| IO#syswrite | o | |
| IO#to_io | ||
| IO#ungetbyte | o | |
| IO#ungetc | o | |
| IO#write | o | |
| IO#write_nonblock |
File
| method | mruby-io | memo |
|---|---|---|
| File.absolute_path | ||
| File.atime | ||
| File.basename | o | |
| File.blockdev? | FileTest | |
| File.chardev? | FileTest | |
| File.chmod | o | |
| File.chown | ||
| File.ctime | ||
| File.delete, File.unlink | o | |
| File.directory? | o | FileTest |
| File.dirname | o | |
| File.executable? | FileTest | |
| File.executable_real? | FileTest | |
| File.exist?, exists? | o | FileTest |
| File.expand_path | o | |
| File.extname | o | |
| File.file? | o | FileTest |
| File.fnmatch, File.fnmatch? | ||
| File.ftype | ||
| File.grpowned? | FileTest | |
| File.identical? | FileTest | |
| File.join | o | |
| File.lchmod | ||
| File.lchown | ||
| File.link | ||
| File.lstat | ||
| File.mtime | ||
| File.new, File.open | o | |
| File.owned? | FileTest | |
| File.path | ||
| File.pipe? | o | FileTest |
| File.readable? | FileTest | |
| File.readable_real? | FileTest | |
| File.readlink | o | |
| File.realdirpath | ||
| File.realpath | o | |
| File.rename | o | |
| File.setgid? | FileTest | |
| File.setuid? | FileTest | |
| File.size | o | |
| File.size? | o | FileTest |
| File.socket? | o | FileTest |
| File.split | ||
| File.stat | ||
| File.sticky? | FileTest | |
| File.symlink | ||
| File.symlink? | o | FileTest |
| File.truncate | ||
| File.umask | o | |
| File.utime | ||
| File.world_readable? | ||
| File.world_writable? | ||
| File.writable? | FileTest | |
| File.writable_real? | FileTest | |
| File.zero? | o | FileTest |
| File#atime | o | |
| File#chmod | ||
| File#chown | ||
| File#ctime | o | |
| File#flock | o | |
| File#lstat | ||
| File#mtime | o | |
| File#path | o | |
| File#size | ||
| File#truncate |
Porting Note
If your (non Windows) platform does not support getpwnam(3) for some reason, define MRB_IO_NO_PWNAM.
See mruby#5358.
License
Copyright (c) 2013 Internet Initiative Japan Inc. Copyright (c) 2017 mruby developers
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.