Resolves: #1184002 - suppress a warning about closing an already closed file descriptor

This commit is contained in:
Kamil Dudka 2015-01-20 14:44:36 +01:00
parent 85e12d8f44
commit cb022dbd05
2 changed files with 105 additions and 1 deletions

97
zsh-5.0.7-close-fd.patch Normal file
View File

@ -0,0 +1,97 @@
From dc0675a5b8f89b8e504fe1641d57a896674caac5 Mon Sep 17 00:00:00 2001
From: Peter Stephenson <pws@zsh.org>
Date: Tue, 20 Jan 2015 09:29:22 +0000
Subject: [PATCH 1/2] users/19751: remove error on failure to close file
descriptor by number.
Keep it when closing file descriptor stored in a variable, i.e.
explicitly opened by the user.
Upstream-commit: e6d964246700581fe22ea834b2ea12dd301e8c3d
Signed-off-by: Kamil Dudka <kdudka@redhat.com>
---
Src/exec.c | 7 ++++++-
Test/A04redirect.ztst | 10 ++++++----
2 files changed, 12 insertions(+), 5 deletions(-)
diff --git a/Src/exec.c b/Src/exec.c
index a9c4688..04c8b50 100644
--- a/Src/exec.c
+++ b/Src/exec.c
@@ -3167,7 +3167,12 @@ execcmd(Estate state, int input, int output, int how, int last1)
}
if (fn->fd1 < 10)
closemn(mfds, fn->fd1, REDIR_CLOSE);
- if (!closed && zclose(fn->fd1) < 0) {
+ /*
+ * Only report failures to close file descriptors
+ * if they're under user control as we don't know
+ * what the previous status of others was.
+ */
+ if (!closed && zclose(fn->fd1) < 0 && fn->varid) {
zwarn("failed to close file descriptor %d: %e",
fn->fd1, errno);
}
diff --git a/Test/A04redirect.ztst b/Test/A04redirect.ztst
index a39ce46..cb67788 100644
--- a/Test/A04redirect.ztst
+++ b/Test/A04redirect.ztst
@@ -152,11 +152,13 @@
>hello
>goodbye
- ({ exec 3<&- } 2>/dev/null
- exec 3<&-
- read foo <&-)
+ (exec {varid}<&0
+ exec {varid}<&-
+ print About to close a second time >&2
+ read {varid}<&-)
1:'<&-' redirection
-*?\(eval\):*: failed to close file descriptor 3:*
+?About to close a second time
+*?\(eval\):*: failed to close file descriptor *
print foo >&-
0:'>&-' redirection
--
2.1.0
From 206fdc852a0f28dddce7411eafeb3ab29b0259ed Mon Sep 17 00:00:00 2001
From: Peter Stephenson <pws@zsh.org>
Date: Tue, 20 Jan 2015 11:53:42 +0000
Subject: [PATCH 2/2] users/19756: test for case of closing fd with no error
message
Upstream-commit: 638bfa93a009987e57bd7eaa8b2a1c1067a3652a
Signed-off-by: Kamil Dudka <kdudka@redhat.com>
---
Test/A04redirect.ztst | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/Test/A04redirect.ztst b/Test/A04redirect.ztst
index cb67788..13f1f7c 100644
--- a/Test/A04redirect.ztst
+++ b/Test/A04redirect.ztst
@@ -152,11 +152,16 @@
>hello
>goodbye
+ ({exec 3<&- } 2>/dev/null
+ exec 3<&-
+ read foo <&-)
+1:'<&-' redirection with numeric fd (no error message on failure)
+
(exec {varid}<&0
exec {varid}<&-
print About to close a second time >&2
read {varid}<&-)
-1:'<&-' redirection
+1:'<&-' redirection with fd in variable (error message on failure)
?About to close a second time
*?\(eval\):*: failed to close file descriptor *
--
2.1.0

View File

@ -3,7 +3,7 @@
Summary: Powerful interactive shell
Name: zsh
Version: 5.0.7
Release: 4%{?dist}
Release: 5%{?dist}
License: MIT
URL: http://zsh.sourceforge.net/
Group: System Environment/Shells
@ -23,6 +23,9 @@ Patch5: zsh-test-C02-dev_fd-mock.patch
# make the wait built-in work for already exited processes (#1162198)
Patch6: zsh-5.0.7-wait-for-exited.patch
# suppress a warning about closing an already closed file descriptor (#1184002)
Patch7: zsh-5.0.7-close-fd.patch
BuildRequires: coreutils sed ncurses-devel libcap-devel
BuildRequires: texinfo texi2html gawk hostname
Requires(post): info grep
@ -60,6 +63,7 @@ This package contains the Zsh manual in html format.
%patch4 -p1
%patch5 -p1
%patch6 -p1
%patch7 -p1
cp -p %SOURCE7 .
@ -177,6 +181,9 @@ fi
%doc Doc/*.html
%changelog
* Fri Jan 23 2015 Kamil Dudka <kdudka@redhat.com> - 5.0.7-5
- suppress a warning about closing an already closed file descriptor (#1184002)
* Wed Nov 19 2014 Kamil Dudka <kdudka@redhat.com> - 5.0.7-4
- update documentation of POSIX_JOBS in the zshoptions.1 man page (#1162198)