Put the main() and wmain() routines for CLI programs into a separate file.

That means that code is only in one place, rather than having copies of
it in each of those programs.

CLI programs that, on Windows, should get UTF-8 arguments rather than
arguments in the local code page should:

	include the top-level cli_main.h header;

	define the main function as real_main();

	be built with the top-level cli_main.c file.

On UN*X, cli_main.c has a main() program, and just passes the arguments
on to real_main().

On Windows, cli_main.c has a wmain() function that converts the UTF-16
arguments it's handed to UTF-8 arguments, using WideCharToMultiByte() so
that it doesn't use any functions other than those provided by the
system, and then calls real_main() with the argument count and UTF-8
arguments.

Change-Id: I8b11f01dbc5c63fce599d1bef9ad96cd92c3c01e
Reviewed-on: https://code.wireshark.org/review/31017
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>

1 files changed, 2 insertions, 22 deletions

diff --git a/tfshark.c b/tfshark.c
index 0a44c4eba9..52f8fb13a4 100644
--- a/tfshark.c
+++ b/tfshark.c
@@ -39,6 +39,7 @@
 #include <wsutil/file_util.h>
 #include <wsutil/privileges.h>
 #include <wsutil/report_message.h>
+#include <cli_main.h>
 #include <version_info.h>
 
 #include "globals.h"
@@ -66,10 +67,6 @@
 #include <wiretap/wtap-int.h>
 #include <wiretap/file_wrappers.h>
 
-#ifdef _WIN32
-#include <wsutil/unicode-utils.h>
-#endif /* _WIN32 */
-
 #include "log.h"
 #include <epan/funnel.h>
 
@@ -303,7 +300,7 @@ get_tfshark_runtime_version_info(GString *str)
   epan_get_runtime_version_info(str);
 }
 
-static int
+int
 real_main(int argc, char *argv[])
 {
   GString             *comp_info_str;
@@ -1005,23 +1002,6 @@ clean_exit:
   return exit_status;
 }
 
-#ifdef _WIN32
-int
-wmain(int argc, wchar_t *wc_argv[])
-{
-  char **argv;
-
-  argv = arg_list_utf_16to8(argc, wc_argv);
-  return real_main(argc, argv);
-}
-#else
-int
-main(int argc, char *argv[])
-{
-  return real_main(argc, argv);
-}
-#endif
-
 static const nstime_t *
 tfshark_get_frame_ts(struct packet_provider_data *prov, guint32 frame_num)
 {