Give a more correct error if you try to set the direction when reading

from a savefile.

diff --git a/savefile.c b/savefile.c
index a7cbb65e629fa3e98565f0a7435416d6a9626d1d..a9b4cdce446bf59c01abf5340b8f3c301b9fdfd0 100644 (file)
--- a/savefile.c
+++ b/savefile.c
@@ -30,7 +30,7 @@
 
 #ifndef lint
 static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/libpcap/savefile.c,v 1.126.2.6 2005-05-04 19:40:01 risso Exp $ (LBL)";
+    "@(#) $Header: /tcpdump/master/libpcap/savefile.c,v 1.126.2.7 2005-05-23 20:32:39 guy Exp $ (LBL)";
 #endif
 
 #ifdef HAVE_CONFIG_H
@@ -717,6 +717,18 @@ sf_inject(pcap_t *p, const void *buf _U_, size_t size _U_)
        return (-1);
 }
 
+/*
+ * Set direction flag: Which packets do we accept on a forwarding
+ * single device? IN, OUT or both?
+ */
+static int
+sf_setdirection(pcap_t *p, direction_t d)
+{
+       snprintf(p->errbuf, sizeof(p->errbuf),
+           "Setting direction is not supported on savefiles");
+       return (-1);
+}
+
 static void
 sf_close(pcap_t *p)
 {
@@ -918,6 +930,7 @@ pcap_fopen_offline(FILE *fp, char *errbuf)
        p->read_op = pcap_offline_read;
        p->inject_op = sf_inject;
        p->setfilter_op = install_bpf_program;
+       p->setdirection_op = sf_setdirection;
        p->set_datalink_op = NULL;      /* we don't support munging link-layer headers */
        p->getnonblock_op = sf_getnonblock;
        p->setnonblock_op = sf_setnonblock;