mirror of
https://github.com/servalproject/serval-dna.git
synced 2024-12-19 05:07:56 +00:00
6d2eb268ed
The new 'cmd_cleanup' trigger replaces the old command_cleanup() function, which was causing linking problems on OS X and inverted strict dependency. The keyring cmd_cleanup calls keyring_free(global_keyring), instead of merely asserting keyring == NULL, so the error exit cases of many CLI functions have been simplified.
107 lines
3.4 KiB
C
107 lines
3.4 KiB
C
/*
|
|
Serval DNA command-line parsing
|
|
Copyright (C) 2014-2015 Serval Project Inc.
|
|
Copyright (C) 2016 Flinders University
|
|
|
|
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 "commandline.h"
|
|
#include "conf.h"
|
|
#include "str.h"
|
|
#include "cli_stdio.h"
|
|
|
|
DEFINE_CMD(app_usage, CLIFLAG_PERMISSIVE_CONFIG,
|
|
"Display command usage.",
|
|
"help|-h|--help","...");
|
|
static int app_usage(const struct cli_parsed *parsed, struct cli_context *UNUSED(context))
|
|
{
|
|
return cli_usage_parsed(parsed, XPRINTF_STDIO(stdout));
|
|
}
|
|
|
|
/* Parse the command line and load the configuration. If a command was found then execute the
|
|
* parsed command and return its return value.
|
|
*
|
|
* 'context' controls the command output.
|
|
*
|
|
* 'argv0' must be NULL or be a nul-terminated string containing the name or path of the executable.
|
|
* It is used to emit diagnostic messages.
|
|
*
|
|
* 'argc' and 'args' must contain the command-line words to parse.
|
|
*/
|
|
int commandline_main(struct cli_context *context, const char *argv0, int argc, const char *const *args)
|
|
{
|
|
fd_clearstats();
|
|
IN();
|
|
|
|
cf_init();
|
|
|
|
struct cli_parsed parsed;
|
|
int result = cli_parse(argc, args, SECTION_START(commands), SECTION_END(commands), &parsed);
|
|
switch (result) {
|
|
case 0:
|
|
// Do not run the command if the configuration does not load ok.
|
|
if (((parsed.commands[parsed.cmdi].flags & CLIFLAG_PERMISSIVE_CONFIG) ? cf_reload_permissive() : cf_reload()) != -1)
|
|
result = cli_invoke(&parsed, context);
|
|
else {
|
|
strbuf b = strbuf_alloca(160);
|
|
strbuf_append_argv(b, argc, args);
|
|
result = WHYF("configuration defective, not running command: %s", strbuf_str(b));
|
|
}
|
|
break;
|
|
case 1:
|
|
case 2:
|
|
// Load configuration so that log messages can get out.
|
|
cf_reload_permissive();
|
|
NOWHENCE(HINTF("Run \"%s help\" for more information.", argv0 ? argv0 : "servald"));
|
|
result =-1;
|
|
break;
|
|
default:
|
|
// Load configuration so that log error messages can get out.
|
|
cf_reload_permissive();
|
|
break;
|
|
}
|
|
|
|
CALL_TRIGGER(cmd_cleanup, context);
|
|
|
|
OUT();
|
|
|
|
if (IF_DEBUG(timing))
|
|
fd_showstats();
|
|
return result;
|
|
}
|
|
|
|
// Put a dummy no-op trigger callback into the "cmd_cleanup" trigger section,
|
|
// otherwise if no other object provides one, the link will fail with errors like:
|
|
// undefined reference to `__start_tr_cmd_cleanup'
|
|
// undefined reference to `__stop_tr_cmd_cleanup'
|
|
|
|
static void __dummy_on_cmd_cleanup();
|
|
DEFINE_TRIGGER(cmd_cleanup, __dummy_on_cmd_cleanup);
|
|
static void __dummy_on_cmd_cleanup() {}
|
|
|
|
int commandline_main_stdio(FILE *output, const char *argv0, int argc, const char *const *args)
|
|
{
|
|
struct cli_context_stdio cli_context_stdio = {
|
|
.fp = output
|
|
};
|
|
struct cli_context cli_context = {
|
|
.vtable = &cli_vtable_stdio,
|
|
.context = &cli_context_stdio
|
|
};
|
|
|
|
return commandline_main(&cli_context, argv0, argc, args);
|
|
}
|