Changeset 53eb1aa for lib/format_linux.c

Timestamp:

07/22/14 02:25:50 (7 years ago)

Author:

Richard Sanger <rsangerarj@…>

Branches:

4.0.1-hotfixes, cachetimestamps, develop, dpdk-ndag, etsilive, libtrace4, master, ndag_format, pfring, rc-4.0.1, rc-4.0.2, rc-4.0.3, rc-4.0.4, ringdecrementfix, ringperformance, ringtimestampfixes

Children:

a6c77b0

Parents:

ed18a6e

Message:

Fix a really old (since 2006) and bad bug in the int: format.

The wire length returned when using trace_config(trace, TRACE_OPTION_SNAPLEN, ...) will be limited to the capture length (well +4 due to MAC checksum adjustment) rather than the actual wire length.

File:

• lib/format_linux.c (modified) (1 diff)

lib/format_linux.c

@@ -915 +915 @@
         iovec.iov_len = snaplen;
 
-        hdr->wirelen = recvmsg(FORMAT(libtrace->format_data)->fd, &msghdr, 0);
+        hdr->wirelen = recvmsg(FORMAT(libtrace->format_data)->fd, &msghdr, MSG_TRUNC);
 
         if (hdr->wirelen==~0U) {