Fix the calculation of a file's "basename".

Strip off only extensions that correspond to file types we know about;
QFileInfo::baseName() strips off *all* extensions, where "extension" is
"anything preceded by a .", so it turns foo.bar.pcap.gz into foo, not
foo.bar.  We don't want that; instead, we strip off only those
extensions that correspond to file types we know how to read, so we'd
strip off .pcap.gz in foo.bar.pcap.gz, and strip off .pcap in
foo.bar.pcap, leaving foo.bar in both cases.

Change-Id: I5385921ad2f0fef815d52e9902fef15735fd9dae
Reviewed-on: https://code.wireshark.org/review/28636
Reviewed-by: Guy Harris <guy@alum.mit.edu>

1 files changed, 11 insertions, 0 deletions

diff --git a/file.h b/file.h
index 3088435a60..090528654b 100644
--- a/file.h
+++ b/file.h
@@ -276,6 +276,17 @@ cf_write_status_t cf_export_specified_packets(capture_file *cf,
 gchar *cf_get_display_name(capture_file *cf);
 
 /**
+ * Get a name that can be used to generate a file name from the
+ * capture file name.  It's based on the displayable name, so it's
+ * UTF-8; if it ends with a suffix that's used by a file type libwiretap
+ * can read, we strip that suffix off.
+ *
+ * @param cf the capture file
+ * @return the base name (must be g_free'd)
+ */
+gchar *cf_get_basename(capture_file *cf);
+
+/**
  * Set the source of the capture data for temporary files, e.g.
  * "Interface eth0" or "Pipe from Pong"
  *