This is basically the same as the patch for ping.
---
freebsd/sbin/ping6/ping6.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/freebsd/sbin/ping6/ping6.c b/freebsd/sbin/ping6/ping6.c
index a56aae1dc..2d6e5adef 100644
--- a/freebsd/sbin/ping6/ping6.c
+++ b/freebsd/sbin/ping6/ping6.c
@@ -115,6 +115,7 @@ __FBSDID("$FreeBSD$");
#include <getopt.h>
#include <machine/rtems-bsd-program.h>
#include <machine/rtems-bsd-commands.h>
+#include <rtems/libio_.h>
#endif /* __rtems__ */
#include <sys/param.h>
#include <sys/capsicum.h>
@@ -1198,7 +1199,13 @@ main(int argc, char *argv[])
struct timespec now, timeout;
struct msghdr m;
struct iovec iov[2];
+#ifndef __rtems__
fd_set rfds;
+#else /* __rtems__ */
+ fd_set big_enough_rfds[howmany(rtems_libio_number_iops,
+ sizeof(fd_set) * 8)];
+#define rfds (*(fd_set *)(&big_enough_rfds[0]))
+#endif /* __rtems__ */
int n;
/* signal handling */
@@ -1211,7 +1218,11 @@ main(int argc, char *argv[])
continue;
}
#endif
+#ifndef __rtems__
FD_ZERO(&rfds);
+#else /* __rtems__ */
+ memset(big_enough_rfds, 0, sizeof(big_enough_rfds));
+#endif /* __rtems__ */
FD_SET(srecv, &rfds);
clock_gettime(CLOCK_MONOTONIC, &now);
timespecadd(&last, &intvl, &timeout);
--
2.26.2
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