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oslib-posix: Introduce qemu_socketpair()

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qemu_socketpair() will create a pair of connected sockets
with FD_CLOEXEC set

Signed-off-by: Guoyi Tu <tugy@chinatelecom.cn>
Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <17fa1eff729eeabd9a001f4639abccb127ceec81.1661240709.git.tugy@chinatelecom.cn>
This commit is contained in:
Guoyi Tu 2022-08-23 15:50:39 +08:00 • committed by Marc-André Lureau
parent fc0c128531
commit 3c63b4e94a
2 changed files with 37 additions and 0 deletions
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19
util/oslib-posix.c
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@ -253,6 +253,25 @@ void qemu_set_cloexec(int fd)
assert(f != -1);
}
int qemu_socketpair(int domain, int type, int protocol, int sv[2])
{
int ret;
#ifdef SOCK_CLOEXEC
ret = socketpair(domain, type | SOCK_CLOEXEC, protocol, sv);
if (ret != -1 || errno != EINVAL) {
return ret;
}
#endif
ret = socketpair(domain, type, protocol, sv);;
if (ret == 0) {
qemu_set_cloexec(sv[0]);
qemu_set_cloexec(sv[1]);
}
return ret;
}
char *
qemu_get_local_state_dir(void)
{