Extcap programs must write to the packet pipe in binary mode.

It doesn't matter on UN*X, but it definitely matters on Windows; we're
writing a pcap file, not a text file, so every byte we write should go
down the pipe as is.

Bug: 14989
Change-Id: I26c067b8ff5dba644a579846dd97b568a81c7053
Reviewed-on: https://code.wireshark.org/review/28764
Reviewed-by: Guy Harris <guy@alum.mit.edu>

1 files changed, 1 insertions, 1 deletions

diff --git a/extcap/udpdump.c b/extcap/udpdump.c
index 7ed6cbfdfd..121b3c4816 100644
--- a/extcap/udpdump.c
+++ b/extcap/udpdump.c
@@ -172,7 +172,7 @@ static int setup_dumpfile(const char* fifo, FILE** fp)
 		return EXIT_SUCCESS;
 	}
 
-	*fp = fopen(fifo, "w");
+	*fp = fopen(fifo, "wb");
 	if (!(*fp)) {
 		g_warning("Error creating output file: %s", g_strerror(errno));
 		return EXIT_FAILURE;