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Bug #499

closed

"interrupted system call" when using "tee" builtin in ksh

Added by Roland Mainz over 12 years ago. Updated over 2 years ago.

Status:
Closed
Priority:
Normal
Assignee:
-
Category:
-
Start date:
2010-12-10
Due date:
% Done:

100%

Estimated time:
Difficulty:
Tags:
Gerrit CR:
1175
External Bug:

Description

The following ksh testcase...
-- snip --
builtin tee

rm f 'pipe'
mknod 'pipe' p
(sleep 4; cat pipe) &
(sleep 2; print 'aa') | tee -a 'pipe'
rm 'pipe'
wait
- snip --
... generates an "interrupted system call" when using the "tee"
builtin within ksh. If "tee" is an external utility this does not happen (both use identical code, the issue in this case is that the builtin may get hit by the SIGCHLD and doesn't protect the |open()|-call against EINTR) ...

Files

ast_ksh_20101112_libcmd_tee_open_intr001.diff.txt (596 Bytes) ast_ksh_20101112_libcmd_tee_open_intr001.diff.txt Prototype patch Roland Mainz, 2010-12-10 02:12 PM
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 #2

Updated by Electric Monk over 2 years ago

  • Gerrit CR set to 1175
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 #3

Updated by Electric Monk over 2 years ago

  • Status changed from New to Closed
  • % Done changed from 0 to 100

git commit b30d193948be5a7794d7ae3ba0ed9c2f72c88e0f

commit  b30d193948be5a7794d7ae3ba0ed9c2f72c88e0f
Author: Andy Fiddaman <omnios@citrus-it.co.uk>
Date:   2021-01-30T17:13:33.000Z

    13405 ksh93 update to 2012-08-01
    13434 sh: mishandles backslash as last character of a block of input
    11750 ksh mkdir builtin doesn't honor special file permissions
    9199 ksh93 builtin *grep -v mishandles blank lines, blows up libgcrypt-config
    6756 sh (and ksh) have issues with ${1+"$@"}
    6520 ksh: sleep could wait forever
    4860 ksh93: core in printf
    3791 /bin/sh's builtin 'rm' busted: 'rm -f' without arguments returns error
    1047 ksh overwrites child core files
    880 ksh93 coredumps on 'unset'
    499 "interrupted system call" when using "tee" builtin in ksh
    Reviewed by: Robert Mustacchi <rm@fingolfin.org>
    Reviewed by: Hans Rosenfeld <rosenfeld@grumpf.hope-2000.org>
    Reviewed by: Dominik Hassler <hadfl@omnios.org>
    Approved by: Rich Lowe <richlowe@richlowe.net>

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