Have wtap_get_savable_file_types() take an array of encapsulations and

only return file types that could handle a single file with all those
encapsulations - this means that

	1) if there's more then one encapsulation, the file format has
to handle per-packet encapsulation;

	2) just because a file format handles per-packet encapsulation,
that doesn't mean that it can handle the *particular* encapsulations
being handed to it.

This fixes some cases where we were claiming that a file could be saved
in a format that doesn't actually support it (e.g., ISDN files being
reported as savable in pcap-NG format - there's no LINKTYPE_ value for
ISDN including B and D channels).

svn path=/trunk/; revision=43300

1 files changed, 1 insertions, 1 deletions

diff --git a/ui/gtk/capture_file_dlg.c b/ui/gtk/capture_file_dlg.c
index 43b822a027..28858d6e9b 100644
--- a/ui/gtk/capture_file_dlg.c
+++ b/ui/gtk/capture_file_dlg.c
@@ -1205,7 +1205,7 @@ set_file_type_list(GtkWidget *combo_box, capture_file *cf)
   guint i;
   int ft;
 
-  savable_file_types = wtap_get_savable_file_types(cf->cd_t, cf->lnk_t);
+  savable_file_types = wtap_get_savable_file_types(cf->cd_t, cf->linktypes);
 
   if (savable_file_types != NULL) {
     /* OK, we have at least one file type we can save this file as.