in faccessat slow path, add close-on-exec to pipe fds

as usual, this is needed to avoid fd leaks. as a better solution, the
use of fds could possibly be replaced with mmap and a futex.

diff --git a/src/unistd/faccessat.c b/src/unistd/faccessat.c
index 1083467f8e442b90dd38002d602cbb1ee7d73f2e..821e13f57504edbe6f6664379abe88ce11755f9d 100644 (file)
--- a/src/unistd/faccessat.c
+++ b/src/unistd/faccessat.c
@@ -34,7 +34,7 @@ int faccessat(int fd, const char *filename, int amode, int flag)
        sigset_t set;
        int ret, p[2];
 
-       if (pipe(p)) return __syscall_ret(-EBUSY);
+       if (pipe2(p, O_CLOEXEC)) return __syscall_ret(-EBUSY);
        struct ctx c = { .fd = fd, .filename = filename, .amode = amode, .p = p[1] };
 
        __block_all_sigs(&set);