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syslogd: Close open UNIX and inet sockets on SIGTERM

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When creating Inet sockets we may get multiple struct addrinfo records.
With this patch we support up to 16 records per Internet peer.  When
closing we iterate over all peers and all records.

Refactor socket_close() to clean up any lingering socket path when
closing UNIX socket.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This commit is contained in:
Joachim Nilsson
2019-11-13 18:41:17 +01:00
parent 4192e543a5
commit 54edca09d9
3 changed files with 34 additions and 17 deletions
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19
src/socket.c
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@ -186,18 +186,23 @@ err: close(sd);
int socket_close(int sd)
{
struct sockaddr_un *sun;
struct sock *entry, *tmp;
LIST_FOREACH_SAFE(entry, &sl, link, tmp) {
if (entry->sd == sd) {
LIST_REMOVE(entry, link);
close(entry->sd);
if (entry->ai.ai_family == AF_UNIX)
free(entry->ai.ai_addr);
free(entry);
if (entry->sd != sd)
continue;
return 0;
LIST_REMOVE(entry, link);
close(entry->sd);
if (entry->ai.ai_family == AF_UNIX) {
sun = (struct sockaddr_un *)entry->ai.ai_addr;
(void)unlink(sun->sun_path);
}
free(entry->ai.ai_addr);
free(entry);
return 0;
}
errno = ENOENT;