* [PATH] forgoten set $PPID readonly
@ 2021-02-03 12:54 Vladimir N. Oleynik
2024-04-05 8:41 ` Herbert Xu
0 siblings, 1 reply; 2+ messages in thread
From: Vladimir N. Oleynik @ 2021-02-03 12:54 UTC (permalink / raw)
To: dash
[-- Attachment #1: Type: text/plain, Size: 101 bytes --]
Hello.
You probably forgot to specify the readonly flag for $PPID.
Micro patch attached.
--w
vodz
[-- Attachment #2: var_ppid.diff --]
[-- Type: text/x-patch, Size: 321 bytes --]
--- var.c~ 2021-01-31 12:30:38.000000000 +0400
+++ var.c 2021-02-03 16:46:34.657412861 +0400
@@ -139,7 +139,7 @@
setvareq(defoptindvar, VTEXTFIXED);
fmtstr(ppid + 5, sizeof(ppid) - 5, "%ld", (long) getppid());
- setvareq(ppid, VTEXTFIXED);
+ setvareq(ppid, VTEXTFIXED|VREADONLY);
p = lookupvar("PWD");
if (p)
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATH] forgoten set $PPID readonly
2021-02-03 12:54 [PATH] forgoten set $PPID readonly Vladimir N. Oleynik
@ 2024-04-05 8:41 ` Herbert Xu
0 siblings, 0 replies; 2+ messages in thread
From: Herbert Xu @ 2024-04-05 8:41 UTC (permalink / raw)
To: Vladimir N. Oleynik; +Cc: dash
On Wed, Feb 03, 2021 at 04:54:24PM +0400, Vladimir N. Oleynik wrote:
>
> You probably forgot to specify the readonly flag for $PPID.
> Micro patch attached.
This is not defined by POSIX. In fact there seems to be no consensus
amongst other shells.
Thanks,
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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