--- b.c.orig	Wed Apr 11 17:10:49 2001
+++ b.c	Sat Apr 21 23:11:38 2001
@@ -16,6 +16,9 @@
 #include <pwd.h>
 #endif
 #include <errno.h>
+#include <sys/file.h>
+#include <sys/types.h>
+#include <sys/stat.h>
 #include <stdlib.h>
 #include <ctype.h>
 #include <string.h>
@@ -178,6 +181,7 @@
 	else
 		b->o = pdefault;
 	mset (b->marks, 0, sizeof (b->marks));
+	b->filehandle = -1;  /* initialize filehandle &&& ob */
 	b->rdonly = 0;
 	b->orphan = 0;
 	b->oldcur = 0;
@@ -229,6 +233,11 @@
 void brm (B *b) {
 	if (b && !--b->count)
 	  {
+           if (b->filehandle != -1) {
+           /* close filehandle, free lock &&& ob */
+           close (b->filehandle);
+          }
+
 		  if (b->changed)
 			  abrerr (b->name);
 		  if (b == errbuf)
@@ -1867,7 +1876,8 @@
 	B *b;
 	long skip, amnt;
 	char *n;
-	int nowrite = 0;
+	struct stat sb;
+	int nowrite = 0, fh = -1;
 
 	if (!s || !s[0])
 	  {
@@ -1920,6 +1930,14 @@
 		  goto opnerr;
 	  }
 
+	/* Lock the file &&& ob,petef */
+	if (fi)
+	  {
+	    fh = dup( fileno(fi) );
+	    nowrite = (flock (fh, LOCK_EX | LOCK_NB));
+	  }
+
+
 	/* Skip data if we need to */
 	if (skip && lseek (fileno (fi), skip, 0) < 0)
 	  {
@@ -1978,6 +1996,8 @@
 	vsrm (n);
 
 	b->er = error;
+	if (fh != -1)
+	  b->filehandle = fh;
 	return b;
 }