isibootd(8) patch for OpenBSD. The original source is at: NetBSD:src/usr.sbin/isibootd .

isibootd.diff

Index: usr.sbin/isibootd/Makefile
===================================================================
RCS file: /cvsroot/src/usr.sbin/isibootd/Makefile,v
retrieving revision 1.1
diff -u -r1.1 Makefile
--- usr.sbin/isibootd/Makefile	17 Dec 2011 13:24:18 -0000	1.1
+++ usr.sbin/isibootd/Makefile	18 Mar 2021 13:42:58 -0000
@@ -1,13 +1,9 @@
 #	$NetBSD: Makefile,v 1.1 2011/12/17 13:24:18 tsutsui Exp $
 
-USE_FORT?= yes	# network server
-
 PROG=	isibootd
 SRCS=	isibootd.c
 MAN=	isibootd.8
 
 LDADD+=	-lutil
-DPADD+=	${LIBUTIL}
 
-.include <bsd.own.mk>
 .include <bsd.prog.mk>
Index: usr.sbin/isibootd/isibootd.c
===================================================================
RCS file: /cvsroot/src/usr.sbin/isibootd/isibootd.c,v
retrieving revision 1.4
diff -u -r1.4 isibootd.c
--- usr.sbin/isibootd/isibootd.c	30 Jan 2021 11:34:28 -0000	1.4
+++ usr.sbin/isibootd/isibootd.c	18 Mar 2021 13:42:58 -0000
@@ -39,9 +39,11 @@
 #include <net/bpf.h>
 #include <net/if.h>
 #include <net/if_dl.h>
-#include <net/if_ether.h>
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
 
 #include <err.h>
+#include <errno.h>
 #include <fcntl.h>
 #include <ifaddrs.h>
 #include <netdb.h>
@@ -111,6 +113,8 @@
 static char *etheraddr(uint8_t *);
 static int pickif(char *, uint8_t *);
 static __dead void usage(void);
+static __inline uint32_t be32dec(const void *);
+static __inline void be32enc(void *, uint32_t);
 
 #define	ISIBOOT_FRAME(buf)	((buf) + ((struct bpf_hdr *)(buf))->bh_hdrlen)
 
@@ -172,7 +176,7 @@
 	if (!dflag) {
 		if (daemon(0, 0))
 			err(EXIT_FAILURE, "can not start daemon");
-#ifdef __NetBSD__
+#if defined(__NetBSD__) || defined (__OpenBSD__)
 		pidfile(NULL);
 #endif
 	}
@@ -465,3 +469,22 @@
 	    getprogname());
 	exit(0);
 }
+
+static __inline uint32_t
+be32dec(const void *pp)
+{
+	uint8_t const *p = (uint8_t const *)pp;
+
+	return (((unsigned)p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]);
+}
+
+static __inline void
+be32enc(void *pp, uint32_t u)
+{
+	uint8_t *p = (uint8_t *)pp;
+
+	p[0] = (u >> 24) & 0xff;
+	p[1] = (u >> 16) & 0xff;
+	p[2] = (u >> 8) & 0xff;
+	p[3] = u & 0xff;
+}