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os: Provide wl_os_socketpair_cloexec wrapper for systems without SOCK_CLOEXEC

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Reviewed-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
Signed-off-by: Weijia Wang <contact@weijia.wang>
This commit is contained in:
Weijia Wang 2022-07-28 01:37:50 +02:00 • committed by Jeremy Huddleston Sequoia
parent d8e90f4a16
commit 46c205d08b
6 changed files with 50 additions and 12 deletions
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28
src/wayland-os.c
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@ -87,6 +87,34 @@ wl_os_socket_cloexec(int domain, int type, int protocol)
return set_cloexec_or_close(fd);
}
int
wl_os_socketpair_cloexec(int domain, int type, int protocol, int sv[2])
{
int retval;
#ifdef SOCK_CLOEXEC
retval = socketpair(domain, type | SOCK_CLOEXEC, protocol, sv);
if (retval >= 0)
return retval;
if (errno != EINVAL)
return -1;
#endif
retval = socketpair(domain, type, protocol, sv);
if (retval < 0)
return retval;
sv[0] = set_cloexec_or_close(sv[0]);
sv[1] = set_cloexec_or_close(sv[1]);
if (sv[0] == -1 || sv[1] == -1) {
close(sv[0]);
close(sv[1]);
return -1;
}
return 0;
}
#if defined(__FreeBSD__)
int
wl_os_socket_peercred(int sockfd, uid_t *uid, gid_t *gid, pid_t *pid)

3
src/wayland-os.h
View file

@ -32,6 +32,9 @@
int
wl_os_socket_cloexec(int domain, int type, int protocol);
int
wl_os_socketpair_cloexec(int domain, int type, int protocol, int sv[2]);
int
wl_os_socket_peercred(int sockfd, uid_t *uid, gid_t *gid, pid_t *pid);