/* clopts_common.c
- * Handle command-line arguments common to Ethereal and Tethereal
+ * Handle command-line arguments common to Wireshark and TShark
*
* $Id$
*
- * Ethereal - Network traffic analyzer
- * By Gerald Combs <gerald@ethereal.com>
+ * 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
#include <string.h>
#include <epan/proto.h>
+#include <epan/packet.h>
+#include <epan/prefs.h>
#include "clopts_common.h"
+#include "cmdarg_err.h"
-/*
- * Handle the "-G" option, to cause protocol field, etc. information
- * to be printed.
- */
-void
-handle_dashG_option(int argc, char **argv, char *progname)
+int
+get_natural_int(const char *string, const char *name)
+{
+ long number;
+ char *p;
+
+ number = strtol(string, &p, 10);
+ if (p == string || *p != '\0') {
+ cmdarg_err("The specified %s \"%s\" isn't a decimal number", name, string);
+ exit(1);
+ }
+ if (number < 0) {
+ cmdarg_err("The specified %s \"%s\" is a negative number", name, string);
+ exit(1);
+ }
+ if (number > INT_MAX) {
+ cmdarg_err("The specified %s \"%s\" is too large (greater than %d)",
+ name, string, INT_MAX);
+ exit(1);
+ }
+ return number;
+}
+
+
+int
+get_positive_int(const char *string, const char *name)
{
- if (argc >= 2 && strcmp(argv[1], "-G") == 0) {
- if (argc == 2)
- proto_registrar_dump_fields(1);
- else {
- if (strcmp(argv[2], "fields") == 0)
- proto_registrar_dump_fields(1);
- else if (strcmp(argv[2], "fields2") == 0)
- proto_registrar_dump_fields(2);
- else if (strcmp(argv[2], "protocols") == 0)
- proto_registrar_dump_protocols();
- else if (strcmp(argv[2], "values") == 0)
- proto_registrar_dump_values();
- else {
- fprintf(stderr, "%s: Invalid \"%s\" option for -G flag\n", progname,
- argv[2]);
- exit(1);
- }
- }
- exit(0);
+ long number;
+
+ number = get_natural_int(string, name);
+
+ if (number == 0) {
+ cmdarg_err("The specified %s is zero", name);
+ exit(1);
}
+
+ return number;
}