tcsh/SOURCES/tcsh-6.20.00-tcsh-posix-status.patch
2021-09-10 05:08:12 +00:00

144 lines
4.4 KiB
Diff

From c4ec43cec37ea82af6c0ba6bb0a3e8c3e85411ce Mon Sep 17 00:00:00 2001
From: Pavel Raiskup <praiskup@redhat.com>
Date: Mon, 28 Jul 2014 14:47:33 +0200
Subject: [PATCH] downstream: implement variable tcsh_posix_status
This patch partially reverts the dist-git commit e0b2d458fda4 -
because we *don't* really want to drop upstream-supported '$anyerror'
variable. And we can't drop $tcsh_posix_status neither, as we already
support that in RHEL5+ as a downstream patch.
So from now, if "!defined(anyerror) || defined(tcsh_posix_status)",
tcsh behaves, with regards to pipelines, same way as POSIX-like shells.
NOTE: This feature is left undocumented intentionaly, just to push
people use the upstream supported $anyerror.
Resolves: #1129703
Related: #759132
---
sh.c | 2 ++
sh.h | 1 +
sh.proc.c | 2 +-
sh.set.c | 5 +++++
tc.const.c | 2 ++
tests/variables.at | 28 ++++++++++++++++++++++++++++
6 files changed, 39 insertions(+), 1 deletion(-)
diff --git a/sh.c b/sh.c
index e9dfa81..38d073a 100644
--- a/sh.c
+++ b/sh.c
@@ -357,6 +357,8 @@ main(int argc, char **argv)
anyerror = 1; /* for compatibility */
setcopy(STRanyerror, STRNULL, VAR_READWRITE);
+ tcsh_posix_status = 0;
+
/* Default history size to 100 */
setcopy(STRhistory, str2short("100"), VAR_READWRITE);
sethistory(100);
diff --git a/sh.h b/sh.h
index 95f439d..a41e2e0 100644
--- a/sh.h
+++ b/sh.h
@@ -573,6 +573,7 @@ EXTERN int editing IZERO; /* doing filename expansion and line editing */
EXTERN int noediting IZERO; /* initial $term defaulted to noedit */
EXTERN int bslash_quote IZERO;/* PWP: tcsh-style quoting? (in sh.c) */
EXTERN int anyerror IZERO; /* propagate errors from pipelines/backq */
+EXTERN int tcsh_posix_status IZERO; /* negation for anyerror */
EXTERN int compat_expr IZERO;/* csh-style expressions? */
EXTERN int isoutatty IZERO; /* is SHOUT a tty */
EXTERN int isdiagatty IZERO;/* is SHDIAG a tty */
diff --git a/sh.proc.c b/sh.proc.c
index 0af5e03..ac6ef5d 100644
--- a/sh.proc.c
+++ b/sh.proc.c
@@ -564,7 +564,7 @@ pjwait(struct process *pp)
do {
/* In case of pipelines only the result of the last
* command should be taken in account */
- if (!anyerror && !(fp->p_flags & PBRACE)
+ if ((!anyerror || tcsh_posix_status) && !(fp->p_flags & PBRACE)
&& ((fp->p_flags & PPOU) || (fp->p_flags & PBACKQ)))
continue;
if (fp->p_reason)
diff --git a/sh.set.c b/sh.set.c
index cf831b2..c155619 100644
--- a/sh.set.c
+++ b/sh.set.c
@@ -117,6 +117,9 @@ update_vars(Char *vp)
else if (eq(vp, STRanyerror)) {
anyerror = 1;
}
+ else if (eq(vp, STRtcsh_posix_status)) {
+ tcsh_posix_status = 1;
+ }
else if (eq(vp, STRsymlinks)) {
Char *pn = varval(vp);
@@ -788,6 +791,8 @@ unset(Char **v, struct command *c)
loginsh = 0;
if (adrof(STRanyerror) == 0)
anyerror = 0;
+ if (adrof(STRtcsh_posix_status) == 0)
+ tcsh_posix_status = 0;
if (adrof(STRwordchars) == 0)
word_chars = STR_WORD_CHARS;
if (adrof(STRedit) == 0)
diff --git a/tc.const.c b/tc.const.c
index cb39ab9..4fed182 100644
--- a/tc.const.c
+++ b/tc.const.c
@@ -44,6 +44,8 @@ Char STRrootdefautologout[] = { '1', '5', '\0' };
Char STRautomatic[] = { 'a', 'u', 't', 'o', 'm', 'a', 't', 'i', 'c',
'\0' };
Char STRanyerror[] = { 'a', 'n', 'y', 'e', 'r', 'r', 'o', 'r', '\0' };
+Char STRtcsh_posix_status[] = {'t', 'c', 's', 'h', '_', 'p', 'o', 's', 'i', 'x',
+ '_', 's', 't', 'a', 't', 'u', 's', '\0' };
Char STRhangup[] = { 'h', 'a', 'n', 'g', 'u', 'p', '\0' };
Char STRaout[] = { 'a', '.', 'o', 'u', 't', '\0' };
Char STRtty[] = { 't', 't', 'y', '\0' };
diff --git a/tests/variables.at b/tests/variables.at
index ffa0da2..5fa9239 100644
--- a/tests/variables.at
+++ b/tests/variables.at
@@ -976,6 +976,34 @@ AT_CHECK([tcsh -f -c 'echo $?tcsh'], ,
AT_CLEANUP
+AT_SETUP([$ tcsh_posix_status])
+
+AT_DATA([exit_status.csh],
+[[echo $?tcsh_posix_status
+false | true ; echo $?
+set tcsh_posix_status = 1 ; echo $?tcsh_posix_status $tcsh_posix_status
+false | true ; echo $?
+set tcsh_posix_status = 0 ; echo $?tcsh_posix_status $tcsh_posix_status
+# Note it is still set!
+false | true ; echo $?
+unset tcsh_posix_status ; echo $?tcsh_posix_status
+false | true ; echo $?
+]])
+
+AT_CHECK([tcsh -f exit_status.csh],,
+[0
+1
+1 1
+0
+1 0
+0
+0
+1
+])
+
+AT_CLEANUP
+
+
AT_SETUP([$ term])
AT_DATA([term.csh],
--
2.7.4