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bsc#992577

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OBS-URL: https://build.opensuse.org/package/show/shells/tcsh?expand=0&rev=61
This commit is contained in:
Dr. Werner Fink 2016-08-12 15:03:21 +00:00 committed by Git OBS Bridge
parent 2948edad38
commit bfe1c60b69
3 changed files with 96 additions and 2 deletions
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85
tcsh-6.19.00-history-file-locking-order.patch Normal file
View File

@ -0,0 +1,85 @@
---
sh.c | 57 +++++++++++++++++++++++++++++++++------------------------
1 file changed, 33 insertions(+), 24 deletions(-)
--- sh.c
+++ sh.c 2016-08-12 14:40:36.582709621 +0000
@@ -1537,18 +1537,18 @@ int
#endif /*WINNT_NATIVE*/
srcfile(const char *f, int onlyown, int flg, Char **av)
{
- int *unit;
+ int unit, *hd = NULL;
- unit = xmalloc(sizeof(*unit));
- cleanup_push(unit, xfree);
- *unit = xopen(f, O_LARGEFILE |
+ unit = xopen(f, O_LARGEFILE |
((flg & HIST_FILE_WRLCK) ? (O_CREAT|O_RDWR) : O_RDONLY), 0600);
- if (*unit == -1)
+ if (unit < 0)
return 0; /* Error. */
- cleanup_push(unit, open_cleanup);
- *unit = dmove(*unit, -1);
- (void) close_on_exec(*unit, 1);
+ cleanup_push(&unit, open_cleanup);
+ unit = dmove(unit, -1);
+ cleanup_ignore(&unit);
+ cleanup_until(&unit);
+ (void) close_on_exec(unit, 1);
if (flg & (HIST_FILE_WRLCK | HIST_FILE_RDLCK)) {
struct flock fl;
@@ -1558,26 +1558,35 @@ srcfile(const char *f, int onlyown, int
fl.l_start = 0;
fl.l_len = 0;
- cleanup_push(unit, fcntl_cleanup);
- if (fcntl(*unit, F_SETLKW, &fl) == -1)
- cleanup_ignore(unit);
- }
+ hd = xmalloc(sizeof(*hd));
+ cleanup_push(hd, xfree);
- srcunit(*unit, onlyown, flg, av);
+ *hd = fcntl(unit, F_DUPFD_CLOEXEC, FSAFE+1);
+ cleanup_push(hd, open_cleanup);
- /* Unlock the unit, if we don't want to leave it locked (or open). */
- if ((flg & (HIST_FILE_WRLCK | HIST_FILE_RDLCK)) &&
- (!(flg & HIST_FILE_LOCK) || !(flg & HIST_FILE_OPEN)))
- cleanup_until(unit); /* fcntl_cleanup */
-
- /* Close the unit, if we don't want to leave it open. */
- if (!(flg & HIST_FILE_OPEN)) {
- cleanup_until(unit); /* open_cleanup */
- cleanup_until(unit); /* xfree */
- return -1; /* Not error but invalid file descriptor. */
+ fcntl(*hd, F_SETLKW, &fl);
+ cleanup_push(hd, fcntl_cleanup);
}
- return *unit; /* File descriptor (fd > FSAFE). */
+ cleanup_push(&unit, open_cleanup);
+ /*
+ * This one *does* do a cleanup_until() hence a open_cleanup()
+ * therefore use a duplicated fd to lock/unlock the history file
+ */
+ srcunit(unit, onlyown, flg, av);
+ cleanup_until(&unit); /* Close the official unit. */
+
+ if (!hd)
+ return -1; /* Not error but invalid file descriptor. */
+
+ if ((flg & HIST_FILE_OPEN) && (flg & HIST_FILE_LOCK))
+ return -1;
+
+ cleanup_until(hd); /* fcntl_cleanup */
+ cleanup_until(hd); /* open_cleanup */
+ cleanup_until(hd); /* xfree */
+
+ return unit; /* File descriptor (fd > FSAFE). */
}

6
tcsh.changes
View File

@ -1,3 +1,9 @@
-------------------------------------------------------------------
Fri Aug 12 14:52:34 UTC 2016 - werner@suse.de
- Make a copy of the file descriptor of the history file to be
able not only to lock but also unlock this file (bsc#992577)
-------------------------------------------------------------------
Mon Apr 4 09:00:35 UTC 2016 - schwab@suse.de

7
tcsh.spec
View File

@ -35,7 +35,9 @@ Patch6: tcsh-6.18.03-catalogs.dif
# PATCH-FIX-SUSE add history file locking (bsc#901076)
Patch9: tcsh-6.18.03-history-file-locking.patch
Patch10: tcsh-6.18.03-history-merge.dif
Patch11: union-wait.patch
# PATCH-FIX-SUSE fix history file locking: first unlock then close
Patch11: tcsh-6.19.00-history-file-locking-order.patch
Patch12: union-wait.patch
BuildRequires: autoconf
BuildRequires: ncurses-devel
BuildRequires: screen
@ -62,8 +64,9 @@ correction, a history mechanism, job control, and a C-like syntax.
%patch6 -b .catalogs
%patch9 -b .histlock
%patch10 -b .histmerg
%patch11 -b .histlckord
%patch12 -p1
%patch0 -b .0
%patch11 -p1
%build