server: fix --server=<fd> on OSes returning SO_ACCEPTCONN > 1

Closes #1956
This commit is contained in:
Guillaume Outters 2025-02-13 16:16:43 +01:00 committed by Daniel Eklöf
parent 76503fb86a
commit d66a00678d
No known key found for this signature in database
GPG key ID: 5BBD4992C116573F

View file

@ -4,6 +4,7 @@
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <limits.h>
#include <sys/types.h>
#include <sys/socket.h>
@ -23,6 +24,8 @@
#include "wayland.h"
#include "xmalloc.h"
#define NON_ZERO_OPT (INT_MIN / 7)
struct client;
struct terminal_instance;
@ -474,7 +477,7 @@ prepare_socket(int fd)
}
int const socket_options[] = { SO_DOMAIN, SO_ACCEPTCONN, SO_TYPE };
int const socket_options_values[] = { AF_UNIX, 1, SOCK_STREAM};
int const socket_options_values[] = { AF_UNIX, NON_ZERO_OPT, SOCK_STREAM};
char const * const socket_options_names[] = { "SO_DOMAIN", "SO_ACCEPTCONN", "SO_TYPE" };
xassert(ALEN(socket_options) == ALEN(socket_options_values));
@ -489,6 +492,8 @@ prepare_socket(int fd)
LOG_ERRNO("failed to read socket option from passed file descriptor");
return false;
}
if (socket_options_values[i] == NON_ZERO_OPT && socket_option)
socket_option = NON_ZERO_OPT;
if (socket_option != socket_options_values[i]) {
LOG_ERR("wrong socket value for socket option '%s' on passed file descriptor",
socket_options_names[i]);