Move some more stuff into wsutil.

Move the routines to parse numerical command-line arguments there.

Make cmdarg_err() and cmdarg_err_cont() routines in wsutil that just
call routines specified by a call to cmdarg_err_init(), and have
programs supply the appropriate routines to it.

Change-Id: Ic24fc758c0e647f4ff49eb91673529bcb9587b01
Reviewed-on: https://code.wireshark.org/review/2704
Reviewed-by: Evan Huus <eapache@gmail.com>
Reviewed-by: Guy Harris <guy@alum.mit.edu>

1 files changed, 67 insertions, 0 deletions

diff --git a/wsutil/cmdarg_err.c b/wsutil/cmdarg_err.c
new file mode 100644
index 0000000000..7dd2fa23c6
--- /dev/null
+++ b/wsutil/cmdarg_err.c
@@ -0,0 +1,67 @@
+/* cmdarg_err.c
+ * Routines to report command-line argument errors.
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+
+#include <wsutil/cmdarg_err.h>
+
+static void (*print_err)(const char *, va_list ap);
+static void (*print_err_cont)(const char *, va_list ap);
+
+/*
+ * Set the reporting functions for error messages.
+ */
+void
+cmdarg_err_init(void (*err)(const char *, va_list),
+                void (*err_cont)(const char *, va_list))
+{
+    print_err = err;
+    print_err_cont = err_cont;
+}
+
+/*
+ * Report an error in command-line arguments.
+ */
+void
+cmdarg_err(const char *fmt, ...)
+{
+    va_list ap;
+
+    va_start(ap, fmt);
+    print_err(fmt, ap);
+    va_end(ap);
+}
+
+/*
+ * Report additional information for an error in command-line arguments.
+ */
+void
+cmdarg_err_cont(const char *fmt, ...)
+{
+    va_list ap;
+
+    va_start(ap, fmt);
+    print_err_cont(fmt, ap);
+    va_end(ap);
+}