tor/src/or/tor_api.c

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/* Copyright (c) 2001 Matej Pfajfar.
* Copyright (c) 2001-2004, Roger Dingledine.
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2017, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file tor_api.c
**/
#include "tor_api.h"
#include "tor_api_internal.h"
// Include this after the above headers, to insure that they don't
// depend on anything else.
#include "orconfig.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// We don't want to use tor_malloc and tor_free here, since this needs
// to run before anything is initialized at all, and ought to run when
// we're not linked to anything at all.
#define raw_malloc malloc
#define raw_free free
tor_main_configuration_t *
tor_main_configuration_new(void)
{
static const char *fake_argv[] = { "tor" };
tor_main_configuration_t *cfg = raw_malloc(sizeof(*cfg));
if (cfg == NULL)
return NULL;
memset(cfg, 0, sizeof(*cfg));
cfg->argc = 1;
cfg->argv = (char **) fake_argv;
return cfg;
}
int
tor_main_configuration_set_command_line(tor_main_configuration_t *cfg,
int argc, char *argv[])
{
if (cfg == NULL)
return -1;
cfg->argc = argc;
cfg->argv = argv;
return 0;
}
void
tor_main_configuration_free(tor_main_configuration_t *cfg)
{
if (cfg == NULL)
return;
raw_free(cfg);
}
/* Main entry point for the Tor process. Called from main().
*
* This function is distinct from main() only so we can link main.c into
* the unittest binary without conflicting with the unittests' main.
*
* Some embedders have historically called this function; but that usage is
* deprecated: they should use tor_run_main() instead.
*/
int
tor_main(int argc, char *argv[])
{
tor_main_configuration_t *cfg = tor_main_configuration_new();
if (!cfg) {
puts("INTERNAL ERROR: Allocation failure. Cannot proceed");
return 1;
}
if (tor_main_configuration_set_command_line(cfg, argc, argv) < 0) {
puts("INTERNAL ERROR: Can't set command line. Cannot proceed.");
return 1;
}
int rv = tor_run_main(cfg);
tor_main_configuration_free(cfg);
return rv;
}