trafgen: Fix output pcap file name length trimming

Trim output name to IFNAMSIZ only if the output is a networking device,
otherwise the following error occured if output name is greater then
IFNAMSIZ:

  $ trafgen -n 1 '{ udp() }' -o /tmp/xxxxxxxxxxxxxx.pcap
  No networking device or pcap file: /tmp/xxxxxxxxxx
  Failed to open output device

Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

1 files changed, 1 insertions, 1 deletions

diff --git a/trafgen.c b/trafgen.c
index 6ae0076..b40d362 100644
--- a/trafgen.c
+++ b/trafgen.c
@@ -1084,7 +1084,7 @@ int main(int argc, char **argv)
 			break;
 		case 'd':
 		case 'o':
-			ctx.device = xstrndup(optarg, IFNAMSIZ);
+			ctx.device = xstrdup(optarg);
 			break;
 		case 'H':
 			prio_high = true;