07cfef9e5a
This reverts commit 5953756305
.
The public API should not be polluted with Windows-specific hacks. As we
already override dofile/loadfile, those should be fixed instead.
Ping-Bug: 15118
Change-Id: Ia9d5e64e8ef14032f982f695ffd4cac59067bb17
Reviewed-on: https://code.wireshark.org/review/31134
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
292 lines
8.6 KiB
C
292 lines
8.6 KiB
C
/*
|
|
* wslua_util.c
|
|
*
|
|
* (c) 2006, Luis E. Garcia Ontanon <luis@ontanon.org>
|
|
*
|
|
* Wireshark - Network traffic analyzer
|
|
* By Gerald Combs <gerald@wireshark.org>
|
|
* Copyright 1998 Gerald Combs
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
/* WSLUA_MODULE Utility Utility Functions */
|
|
|
|
#include "wslua.h"
|
|
#include <math.h>
|
|
#include <epan/stat_tap_ui.h>
|
|
|
|
|
|
WSLUA_FUNCTION wslua_get_version(lua_State* L) { /* Gets a string of the Wireshark version. */
|
|
const gchar* str = VERSION;
|
|
lua_pushstring(L,str);
|
|
WSLUA_RETURN(1); /* version string */
|
|
}
|
|
|
|
|
|
static gchar* current_plugin_version = NULL;
|
|
|
|
const gchar* get_current_plugin_version(void) {
|
|
return current_plugin_version ? current_plugin_version : "";
|
|
}
|
|
|
|
void clear_current_plugin_version(void) {
|
|
if (current_plugin_version != NULL) {
|
|
g_free(current_plugin_version);
|
|
current_plugin_version = NULL;
|
|
}
|
|
}
|
|
|
|
WSLUA_FUNCTION wslua_set_plugin_info(lua_State* L) {
|
|
/* Set a Lua table with meta-data about the plugin, such as version.
|
|
|
|
The passed-in Lua table entries need to be keyed/indexed by the following:
|
|
* "version" with a string value identifying the plugin version (required)
|
|
* "description" with a string value describing the plugin (optional)
|
|
* "author" with a string value of the author's name(s) (optional)
|
|
* "repository" with a string value of a URL to a repository (optional)
|
|
|
|
Not all of the above key entries need to be in the table. The 'version'
|
|
entry is required, however. The others are not currently used for anything, but
|
|
might be in the future and thus using them might be useful. Table entries keyed
|
|
by other strings are ignored, and do not cause an error.
|
|
|
|
Example:
|
|
|
|
[source,lua]
|
|
----
|
|
local my_info = {
|
|
version = "1.0.1",
|
|
author = "Jane Doe",
|
|
repository = "https://github.com/octocat/Spoon-Knife"
|
|
}
|
|
|
|
set_plugin_info(my_info)
|
|
----
|
|
|
|
@since 1.99.8
|
|
*/
|
|
#define WSLUA_ARG_set_plugin_info_TABLE 1 /* The Lua table of information. */
|
|
|
|
if ( lua_istable(L,WSLUA_ARG_set_plugin_info_TABLE) ) {
|
|
int top;
|
|
lua_getfield(L, WSLUA_ARG_set_plugin_info_TABLE, "version");
|
|
top = lua_gettop(L);
|
|
if (lua_isstring(L, top)) {
|
|
clear_current_plugin_version();
|
|
current_plugin_version = g_strdup( luaL_checkstring(L, top) );
|
|
/* pop the string */
|
|
lua_pop(L, 1);
|
|
}
|
|
else {
|
|
return luaL_error(L,"the Lua table must have a 'version' key entry with a string value");
|
|
}
|
|
} else {
|
|
return luaL_error(L,"a Lua table with at least a 'version' string entry");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
WSLUA_FUNCTION wslua_format_date(lua_State* LS) { /* Formats an absolute timestamp into a human readable date. */
|
|
#define WSLUA_ARG_format_date_TIMESTAMP 1 /* A timestamp value to convert. */
|
|
lua_Number timestamp = luaL_checknumber(LS,WSLUA_ARG_format_date_TIMESTAMP);
|
|
nstime_t then;
|
|
gchar* str;
|
|
|
|
then.secs = (guint32)(floor(timestamp));
|
|
then.nsecs = (guint32) ( (timestamp-(double)(then.secs))*1000000000);
|
|
str = abs_time_to_str(NULL, &then, ABSOLUTE_TIME_LOCAL, TRUE);
|
|
lua_pushstring(LS,str);
|
|
wmem_free(NULL, str);
|
|
|
|
WSLUA_RETURN(1); /* A string with the formated date */
|
|
}
|
|
|
|
WSLUA_FUNCTION wslua_format_time(lua_State* LS) { /* Formats a relative timestamp in a human readable form. */
|
|
#define WSLUA_ARG_format_time_TIMESTAMP 1 /* A timestamp value to convert. */
|
|
lua_Number timestamp = luaL_checknumber(LS,WSLUA_ARG_format_time_TIMESTAMP);
|
|
nstime_t then;
|
|
gchar* str;
|
|
|
|
then.secs = (guint32)(floor(timestamp));
|
|
then.nsecs = (guint32) ( (timestamp-(double)(then.secs))*1000000000);
|
|
str = rel_time_to_str(NULL, &then);
|
|
lua_pushstring(LS,str);
|
|
wmem_free(NULL, str);
|
|
|
|
WSLUA_RETURN(1); /* A string with the formated time */
|
|
}
|
|
|
|
WSLUA_FUNCTION wslua_report_failure(lua_State* LS) { /* Reports a failure to the user. */
|
|
#define WSLUA_ARG_report_failure_TEXT 1 /* Message text to report. */
|
|
const gchar* s = luaL_checkstring(LS,WSLUA_ARG_report_failure_TEXT);
|
|
report_failure("%s",s);
|
|
return 0;
|
|
}
|
|
|
|
/* The returned filename is g_malloc()'d so the caller must free it */
|
|
/* except when NULL is returned if file doesn't exist */
|
|
char* wslua_get_actual_filename(const char* fname) {
|
|
char fname_clean[256];
|
|
char* f;
|
|
char* filename;
|
|
|
|
g_strlcpy(fname_clean,fname,255);
|
|
fname_clean[255] = '\0';
|
|
|
|
for(f = fname_clean; *f; f++) {
|
|
switch(*f) {
|
|
case '/': case '\\':
|
|
*f = *(G_DIR_SEPARATOR_S);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ( file_exists(fname_clean) ) {
|
|
return g_strdup(fname_clean);
|
|
}
|
|
|
|
filename = get_persconffile_path(fname_clean,FALSE);
|
|
|
|
if ( file_exists(filename) ) {
|
|
return filename;
|
|
}
|
|
g_free(filename);
|
|
|
|
/*
|
|
* Try to look in global data directory, nothing extraordinary for normal
|
|
* installations. For executions from the build dir, it will look for files
|
|
* copied to DATAFILE_DIR.
|
|
*/
|
|
filename = get_datafile_path(fname_clean);
|
|
if ( file_exists(filename) ) {
|
|
return filename;
|
|
}
|
|
g_free(filename);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
WSLUA_FUNCTION wslua_loadfile(lua_State* L) {
|
|
/* Lua's loadfile() has been modified so that if a file does not exist
|
|
in the current directory it will look for it in wireshark's user and system directories. */
|
|
#define WSLUA_ARG_loadfile_FILENAME 1 /* Name of the file to be loaded. */
|
|
const char *given_fname = luaL_checkstring(L, WSLUA_ARG_loadfile_FILENAME);
|
|
char* filename;
|
|
|
|
filename = wslua_get_actual_filename(given_fname);
|
|
|
|
if (!filename) {
|
|
WSLUA_ARG_ERROR(loadfile,FILENAME,"file does not exist");
|
|
return 0;
|
|
}
|
|
|
|
if (luaL_loadfile(L, filename) == 0) {
|
|
g_free(filename);
|
|
return 1;
|
|
} else {
|
|
g_free(filename);
|
|
lua_pushnil(L);
|
|
lua_insert(L, -2);
|
|
return 2;
|
|
}
|
|
}
|
|
|
|
WSLUA_FUNCTION wslua_dofile(lua_State* L) {
|
|
/* Lua's dofile() has been modified so that if a file does not exist
|
|
in the current directory it will look for it in wireshark's user and system directories. */
|
|
#define WSLUA_ARG_dofile_FILENAME 1 /* Name of the file to be run. */
|
|
const char *given_fname = luaL_checkstring(L, WSLUA_ARG_dofile_FILENAME);
|
|
char* filename = wslua_get_actual_filename(given_fname);
|
|
int n;
|
|
|
|
if (!filename) {
|
|
WSLUA_ARG_ERROR(dofile,FILENAME,"file does not exist");
|
|
return 0;
|
|
}
|
|
|
|
n = lua_gettop(L);
|
|
if (luaL_loadfile(L, filename) != 0) lua_error(L);
|
|
g_free(filename);
|
|
lua_call(L, 0, LUA_MULTRET);
|
|
return lua_gettop(L) - n;
|
|
}
|
|
|
|
|
|
typedef struct _statcmd_t {
|
|
lua_State* L;
|
|
int func_ref;
|
|
} statcmd_t;
|
|
|
|
static int statcmd_init_cb_error_handler(lua_State* L _U_) {
|
|
return 0;
|
|
}
|
|
|
|
static void statcmd_init(const char *opt_arg, void* userdata) {
|
|
statcmd_t* sc = (statcmd_t *)userdata;
|
|
lua_State* L = sc->L;
|
|
|
|
lua_settop(L,0);
|
|
lua_pushcfunction(L,statcmd_init_cb_error_handler);
|
|
lua_rawgeti(L, LUA_REGISTRYINDEX, sc->func_ref);
|
|
|
|
lua_pushstring(L,opt_arg);
|
|
|
|
switch ( lua_pcall(L,1,0,1) ) {
|
|
case 0:
|
|
break;
|
|
case LUA_ERRRUN:
|
|
g_warning("Runtime error while calling statcmd callback");
|
|
break;
|
|
case LUA_ERRMEM:
|
|
g_warning("Memory alloc error while calling statcmd callback");
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
WSLUA_FUNCTION wslua_register_stat_cmd_arg(lua_State* L) {
|
|
/* Register a function to handle a `-z` option */
|
|
#define WSLUA_ARG_register_stat_cmd_arg_ARGUMENT 1 /* Argument */
|
|
#define WSLUA_OPTARG_register_stat_cmd_arg_ACTION 2 /* Action */
|
|
const char* arg = luaL_checkstring(L,WSLUA_ARG_register_stat_cmd_arg_ARGUMENT);
|
|
statcmd_t* sc = (statcmd_t *)g_malloc0(sizeof(statcmd_t)); /* XXX leaked */
|
|
stat_tap_ui ui_info;
|
|
|
|
sc->L = L;
|
|
lua_pushvalue(L, WSLUA_OPTARG_register_stat_cmd_arg_ACTION);
|
|
sc->func_ref = luaL_ref(L, LUA_REGISTRYINDEX);
|
|
lua_remove(L,1);
|
|
|
|
ui_info.group = REGISTER_STAT_GROUP_UNSORTED; /* XXX - need group for CLI-only? */
|
|
ui_info.title = NULL;
|
|
ui_info.cli_string = arg;
|
|
ui_info.tap_init_cb = statcmd_init;
|
|
ui_info.nparams = 0;
|
|
ui_info.params = NULL;
|
|
register_stat_tap_ui(&ui_info, sc);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - http://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local variables:
|
|
* c-basic-offset: 4
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* vi: set shiftwidth=4 tabstop=8 expandtab:
|
|
* :indentSize=4:tabSize=8:noTabs=true:
|
|
*/
|