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Fix more "/dev/null: cannot create" (re: 411481eb)

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Reproducer:

  trap : USR1
  while :; do kill -s USR1 $$ || exit; done &
  while :; do : >/dev/null; done

It can take between a fraction of a second and a few minutes, but
eventually it will fail like this:

  $ ksh foo
  foo[3]: /dev/null: cannot create
  kill: 77946: no such process

It fails similarly with "cannot open" if </dev/null is used instead
of >/dev/null.

This is the same problem as in the referenced commit, except when
handling traps -- so the same fix is required in sh_fault().
This commit is contained in:
Martijn Dekker 2022-06-20 18:41:28 +01:00
parent 7af1d56e7f
commit 225323f138
3 changed files with 28 additions and 12 deletions
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2
src/cmd/ksh93/include/version.h
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@ -23,7 +23,7 @@
#define SH_RELEASE_FORK "93u+m" /* only change if you develop a new ksh93 fork */
#define SH_RELEASE_SVER "1.0.0-beta.2" /* semantic version number: https://semver.org */
#define SH_RELEASE_DATE "2022-06-18" /* must be in this format for $((.sh.version)) */
#define SH_RELEASE_DATE "2022-06-20" /* must be in this format for $((.sh.version)) */
#define SH_RELEASE_CPYR "(c) 2020-2022 Contributors to ksh " SH_RELEASE_FORK
/* Scripts sometimes field-split ${.sh.version}, so don't change amount of whitespace. */