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tests/compat/pipe2.c: Add create_issue_1069_sentinels() and call it from socketpair() to gain evidence whether issue #1069 is fixed

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datadiode
2024-07-19 09:35:20 +02:00
parent c8ca89425c
commit 6f7da782ec
1 changed files with 19 additions and 0 deletions
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19
tests/compat/pipe2.c
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@@ -35,6 +35,22 @@ static int setfl(int fd, int flag)
return rc;
}
/*
* Have open() temporarily use up file descriptors until reaching beyond the
* allocated sockets, then leak the ones conflicting with any of the latter.
*/
static void create_issue_1069_sentinels(int socket_vector[2])
{
int fd = open("CONIN$", O_RDONLY);
if (fd == -1 || fd > socket_vector[0] && fd > socket_vector[1]) {
return;
}
create_issue_1069_sentinels(socket_vector);
if (fd != socket_vector[0] && fd != socket_vector[1]) {
close(fd);
}
}
int socketpair(int domain, int type, int protocol, int socket_vector[2])
{
if (domain != AF_UNIX || !(type & SOCK_STREAM) || protocol != PF_UNSPEC)
@@ -85,6 +101,9 @@ int socketpair(int domain, int type, int protocol, int socket_vector[2])
goto err;
closesocket(listener);
create_issue_1069_sentinels(socket_vector);
return 0;
err: