Add check for EINTR on braoadcast writing

When signal occures, write can return with EINTR and shouls be recalled
then

see: signal(7)

1 files changed, 2 insertions, 1 deletions

diff --git a/ttb.c b/ttb.c
index 48e73c5..8f0c561 100644
--- a/ttb.c
+++ b/ttb.c
@@ -1,3 +1,4 @@
+#include <errno.h>
 #include <signal.h>
 #include <stddef.h>
 #include <stdio.h>
@@ -103,7 +104,7 @@ after:
 
 			for (size_t j = 1; j < lengthof(peers); ++j)
 				if (peers[j] && i != j)
-					write(peers[j], buf, reads);
+					while (errno = 0, write(peers[j], buf, reads), errno == EINTR);
 		}
 	}
 }