Store the packet encapsulation type as gint8. Saves 3 bytes per packet

svn path=/trunk/; revision=29767

1 files changed, 3 insertions, 1 deletions

diff --git a/tshark.c b/tshark.c
index 05194a1091..05eb227431 100644
--- a/tshark.c
+++ b/tshark.c
@@ -2394,7 +2394,9 @@ fill_in_fdata(frame_data *fdata, capture_file *cf,
   fdata->cum_bytes  = cum_bytes;
   fdata->cap_len = phdr->caplen;
   fdata->file_off = offset;
-  fdata->lnk_t = phdr->pkt_encap;
+  /* To save some memory, we coarcese it into a gint8 */
+  g_assert(phdr->pkt_encap <= G_MAXINT8);
+  fdata->lnk_t = (gint8) phdr->pkt_encap;
   fdata->abs_ts.secs = phdr->ts.secs;
   fdata->abs_ts.nsecs = phdr->ts.nsecs;
   fdata->flags.passed_dfilter = 0;