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treewide: Suppress clang-tidy warning if we already use O_CLOEXEC

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In pcap_init(), we should always open the packet capture file with
O_CLOEXEC, even if we're not running in foreground: O_CLOEXEC means
close-on-exec, not close-on-fork.

In logfile_init() and pidfile_open(), the fact that we pass a third
'mode' argument to open() seems to confuse the android-cloexec-open
checker in LLVM versions from 16 to 19 (at least).

The checker is suggesting to add O_CLOEXEC to 'mode', and not in
'flags', where we already have it.

Add a suppression for clang-tidy and a comment, and avoid repeating
those three times by adding a new helper, output_file_open().

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
Stefano Brivio 2024-10-25 00:10:36 +02:00
parent 134b4d58b4
commit 59fe34ee36
5 changed files with 20 additions and 25 deletions

3
log.c
View file

@ -416,8 +416,7 @@ void logfile_init(const char *name, const char *path, size_t size)
if (readlink("/proc/self/exe", exe, PATH_MAX - 1) < 0)
die_perror("Failed to read own /proc/self/exe link");
log_file = open(path, O_CREAT | O_TRUNC | O_APPEND | O_RDWR | O_CLOEXEC,
S_IRUSR | S_IWUSR);
log_file = output_file_open(path, O_APPEND | O_RDWR);
if (log_file == -1)
die_perror("Couldn't open log file %s", path);