Merge pull request #537 from jjnicola/pcap-filter

Print the filter used by pcap in the error message.

CHANGELOG.md

@@ -14,6 +14,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Add extended environmental variables info to greenbone-nvt-sync help text. [#488](https://github.com/greenbone/openvas/pull/488)
 - Extend nasl functions which generate results with optional "uri" parameter [#526](https://github.com/greenbone/openvas/pull/526)
 - Add nasl function to get the host kb index. [#530](https://github.com/greenbone/openvas/pull/530)
+- Print the filter used by pcap in the error message.[#537](https://github.com/greenbone/openvas/pull/537)
 
 ### Changed
 - The logging of the NASL internal regexp functions was extended to include the pattern in case of a failed regcomp(). [#397](https://github.com/greenbone/openvas/pull/397)

misc/bpf_share.c

@@ -91,7 +91,9 @@ bpf_open_live (char *iface, char *filter)
 
   if (pcap_compile (ret, &filter_prog, filter, 1, netmask) < 0)
     {
-      print_pcap_error (ret, "pcap_compile");
+      char buffer[2048];
+      snprintf (buffer, sizeof (buffer), "pcap_compile: Filter \"%s\"", filter);
+      print_pcap_error (ret, buffer);
       pcap_close (ret);
       return -1;
     }