nmap 3.50 - 3.75 on openbsd

[Okan Demirmen <okan () demirmen com>]

hello all,

so i see that nmap on openbsd has been discussed here before, as per the
archives. however, there are still some issues i'd like to get figured
out.

first, to start, i have pasted the 3 patches (bottom) required to
compile and run nmap on openbsd.

second, there seems to be a bug that is hit when during some root
code on 64bit archs, possibly in tcpip.cc. it seems that head.caplen
is always zero, hence *len (unsigned) becomes less than zero. so
the result is:

$ sudo nmap -O -P0 172.25.113.169

Starting nmap 3.75 ( http://www.insecure.org/nmap/ ) at 2004-10-20 14:32 EDT
Unable to realloc -15 bytes of mem
QUITTING!

ideas off the top of anyone's head?

thanks,
okan

--- nbase/configure.orig        Sat Oct 16 01:03:33 2004
+++ nbase/configure     Wed Oct 20 11:54:11 2004
@@ -3324,6 +3324,9 @@ cat >>conftest.$ac_ext <<_ACEOF
 #if HAVE_SYS_TYPES_H
 # include <sys/types.h>
 # endif
+#if HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
 #if HAVE_SYS_SOCKET_H
 # include <sys/socket.h>
 # endif
--- tcpip.cc.orig       Mon Oct 18 12:59:15 2004
+++ tcpip.cc    Wed Oct 20 11:54:12 2004
@@ -1649,7 +1649,8 @@ if (!pd) fatal("NULL packet device passe
    gettimeofday(&tv_end, NULL);
    *rcvdtime = tv_end;
 #else
-   *rcvdtime = head.ts;
+   rcvdtime->tv_sec = head.ts.tv_sec;
+   rcvdtime->tv_usec = head.ts.tv_usec;
    assert(head.ts.tv_sec);
 #endif
  }
--- tcpip.h.orig        Sun Aug 29 05:11:42 2004
+++ tcpip.h     Wed Oct 20 11:54:12 2004
@@ -254,7 +254,7 @@ extern "C" {
 #endif
 
 #ifndef BSDFIX
-#if FREEBSD || BSDI || NETBSD || DEC
+#if FREEBSD || OPENBSD || BSDI || NETBSD || DEC
 #define BSDFIX(x) x
 #define BSDUFIX(x) x
 #else


-- 
Okan Demirmen <okan () demirmen com>
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