Combining the various suggestions, I now have this:
Index: sys/sys/select.h
===================================================================
RCS file: /cvs/src/sys/sys/select.h,v
retrieving revision 1.13
diff -u -p -r1.13 select.h
--- sys/sys/select.h 29 Oct 2013 02:44:52 -0000 1.13
+++ sys/sys/select.h 3 Dec 2013 21:51:08 -0000
@@ -76,8 +76,17 @@ typedef struct fd_set {
((p)->fds_bits[(n) / __NFDBITS] &= ~(1U << ((n) % __NFDBITS)))
#define FD_ISSET(n, p) \
((p)->fds_bits[(n) / __NFDBITS] & (1U << ((n) % __NFDBITS)))
-#define FD_COPY(f, t) memcpy(t, f, sizeof(*(f)))
-#define FD_ZERO(p) memset(p, 0, sizeof(*(p)))
+
+#if __BSD_VISIBLE
+#define FD_COPY(f, t) (void)(*(t) = *(f))
+#endif
+#define FD_ZERO(p) do \
+ fd_set *_p = (p); \
+ __size_t _n = __howmany(FD_SETSIZE, __NFDBITS); \
+ \
+ while (_n > 0) \
+ _p->fds_bits[--_n] = 0; \
+} while (0)
#if __BSD_VISIBLE
#define NBBY __NBBY
Index: lib/libc/sys/select.2
===================================================================
RCS file: /cvs/src/lib/libc/sys/select.2,v
retrieving revision 1.32
diff -u -p -r1.32 select.2
--- lib/libc/sys/select.2 2 Nov 2013 17:25:34 -0000 1.32
+++ lib/libc/sys/select.2 3 Dec 2013 21:43:17 -0000
@@ -38,10 +38,7 @@
.Nm pselect
.Nd synchronous I/O multiplexing
.Sh SYNOPSIS
-.Fd #include <sys/types.h>
-.Fd #include <sys/time.h>
-.Fd #include <string.h>
-.Fd #include <unistd.h>
+.In sys/select.h
.Ft int
.Fn select "int nfds" "fd_set *readfds" "fd_set *writefds" "fd_set *exceptfds"
"struct timeval *timeout"
.Ft int
--
Christian "naddy" Weisgerber [email protected]
