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Cygwin: Correct /proc/*/stat for processes without ctty 

Report 0 instead of 268435455 (i.e. 0xFFFFFFF) in the tty field of
/proc/*/stat for processes without a controlling terminal. This is what
the procps utility expects when selecting or excluding such processes.
This commit is contained in:
Andy Koppe 2022-11-09 20:34:30 +00:00 committed by Corinna Vinschen
parent 67459ce679
commit 59b8ee7d70
1 changed files with 5 additions and 3 deletions
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8
winsup/cygwin/fhandler/process.cc
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@ -1092,9 +1092,11 @@ format_process_stat (void *data, char *&destbuf)
int nice = 0;
/* ctty maj is 31:16, min is 15:0; tty_nr s/b maj 15:8, min 31:20, 7:0;
maj is 31:16 >> 16 & fff << 8; min is 15:0 >> 8 & ff << 20 | & ff */
int tty_nr = (((p->ctty >> 8) & 0xff) << 20)
| (((p->ctty >> 16) & 0xfff) << 8)
| (p->ctty & 0xff);
int tty_nr = 0;
if (p->ctty > 0)
tty_nr = (((p->ctty >> 8) & 0xff) << 20)
| (((p->ctty >> 16) & 0xfff) << 8)
| (p->ctty & 0xff);
if (p->process_state & PID_EXITED)
strcpy (cmd, "<defunct>");