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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2003-2005 Silicon Graphics, Inc.
* All Rights Reserved.
*/
#include "platform_defs.h"
#include "command.h"
#include "../quota/init.h"
static cmdinfo_t help_cmd;
static void help_onecmd(const char *cmd, const cmdinfo_t *ct);
static void help_oneline(const char *cmd, const cmdinfo_t *ct);
static void
help_all(void)
{
const cmdinfo_t *ct;
for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++)
help_oneline(ct->name, ct);
printf(_("\nUse 'help commandname' for extended help.\n"));
}
static int
help_f(
int argc,
char **argv)
{
const cmdinfo_t *ct;
if (argc == 1) {
help_all();
return 0;
}
ct = find_command(argv[1]);
if (ct == NULL) {
printf(_("command %s not found\n"), argv[1]);
return 0;
}
help_onecmd(argv[1], ct);
return 0;
}
static void
help_onecmd(
const char *cmd,
const cmdinfo_t *ct)
{
help_oneline(cmd, ct);
if (ct->help)
ct->help();
}
static void
help_oneline(
const char *cmd,
const cmdinfo_t *ct)
{
if (cmd)
printf("%s ", cmd);
else {
printf("%s ", ct->name);
if (ct->altname)
printf("(or %s) ", ct->altname);
}
if (ct->args)
printf("%s ", ct->args);
printf("-- %s\n", ct->oneline);
}
void
help_init(void)
{
help_cmd.name = "help";
help_cmd.altname = "?";
help_cmd.cfunc = help_f;
help_cmd.argmin = 0;
help_cmd.argmax = 1;
help_cmd.flags = CMD_FLAG_ONESHOT | CMD_FLAG_LIBRARY;
help_cmd.args = _("[command]");
help_cmd.oneline = _("help for one or all commands");
add_command(&help_cmd);
}
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