Don't close a pcap_t until we're done with its error buffer.

[tcpdump] / tcpdump.c

diff --git a/tcpdump.c b/tcpdump.c
index 3ebb437bb48f3bc8faf353c18a8992cc463dc484..8b2903f6f243b9c0c06bf8c7fc4d791de7bca1ba 100644 (file)
--- a/tcpdump.c
+++ b/tcpdump.c
@@ -1046,9 +1046,9 @@ open_interface(const char *device, netdissect_options *ndo, char *ebuf)
                        /*
                         * Return an error for our caller to handle.
                         */
-                       pcap_close(pc);
                        snprintf(ebuf, PCAP_ERRBUF_SIZE, "%s: %s\n(%s)",
                            device, pcap_statustostr(status), cp);
+                       pcap_close(pc);
                        return (NULL);
                } else if (status == PCAP_ERROR_PERM_DENIED && *cp != '\0')
                        error("%s: %s\n(%s)", device,