initial kerberos/ADS/SPNEGO support in libsmb and smbclient. To

activate you need to:

- install krb5 libraries
- run configure
- build smbclient
- run kinit to get a TGT
- run smbclient with the -k option to choose kerberos auth
(This used to be commit d330575856)

source3/lib/util_file.c

@@ -573,3 +573,20 @@ void file_lines_slashcont(char **lines)
 		}
 	}
 }
+
+/*
+  save a lump of data into a file. Mostly used for debugging 
+*/
+BOOL file_save(const char *fname, void *packet, size_t length)
+{
+	int fd;
+	fd = open(fname, O_WRONLY|O_CREAT|O_TRUNC, 0644);
+	if (fd == -1) {
+		return False;
+	}
+	if (write(fd, packet, length) != length) {
+		return False;
+	}
+	close(fd);
+	return True;
+}