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32178: fix another acquire_pgrp() infinite loop

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Barton E. Schaefer 2013-12-25 16:20:49 -08:00
parent aede5c52bf
commit 15f4843c67
2 changed files with 9 additions and 1 deletions
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6
ChangeLog
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@ -1,4 +1,8 @@
2013-12-21 Barton E. Schaefer <schaefer@brasslantern.com>
2013-12-25 Barton E. Schaefer <schaefer@zsh.org>
* 32178: Src/jobs.c: fix another acquire_pgrp() infinite loop
2013-12-21 Barton E. Schaefer <schaefer@zsh.org>
* PWS + Bart: 32176: plug additional descriptor leaks causing
deadlock via different code paths; expand regression test

4
Src/jobs.c
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@ -2619,6 +2619,7 @@ acquire_pgrp(void)
sigset_t blockset, oldset;
if ((mypgrp = GETPGRP()) > 0) {
long lastpgrp = mypgrp;
sigemptyset(&blockset);
sigaddset(&blockset, SIGTTIN);
sigaddset(&blockset, SIGTTOU);
@ -2639,6 +2640,9 @@ acquire_pgrp(void)
if (read(0, NULL, 0) != 0) {} /* Might generate SIGT* */
signal_block(blockset);
mypgrp = GETPGRP();
if (mypgrp == lastpgrp && !interact)
break; /* Unlikely that pgrp will ever change */
lastpgrp = mypgrp;
}
if (mypgrp != mypid) {
if (setpgrp(0, 0) == 0) {