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/* *********************************************************************
* Broadcom Common Firmware Environment (CFE)
*
* UI Command Dispatch File: ui_cmddisp.c
*
* This module contains routines to maintain the command table,
* parse and execute commands
*
* Author: Mitch Lichtenberg (mpl@broadcom.com)
*
*********************************************************************
*
* Copyright 2000,2001,2002,2003
* Broadcom Corporation. All rights reserved.
*
* This software is furnished under license and may be used and
* copied only in accordance with the following terms and
* conditions. Subject to these conditions, you may download,
* copy, install, use, modify and distribute modified or unmodified
* copies of this software in source and/or binary form. No title
* or ownership is transferred hereby.
*
* 1) Any source code used, modified or distributed must reproduce
* and retain this copyright notice and list of conditions
* as they appear in the source file.
*
* 2) No right is granted to use any trade name, trademark, or
* logo of Broadcom Corporation. The "Broadcom Corporation"
* name may not be used to endorse or promote products derived
* from this software without the prior written permission of
* Broadcom Corporation.
*
* 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED
* WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT
* SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN
* PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE), EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
********************************************************************* */
#include <stdarg.h>
#include "lib_types.h"
#include "lib_string.h"
#include "lib_queue.h"
#include "lib_malloc.h"
#include "lib_printf.h"
#include "lib_setjmp.h"
#include "cfe_iocb.h"
#include "cfe_device.h"
#include "cfe_console.h"
#include "cfe_error.h"
#include "env_subr.h"
#include "cfe.h"
#include "ui_command.h"
/* *********************************************************************
* Types
********************************************************************* */
/* *********************************************************************
* Globals
********************************************************************* */
static jmp_buf ui_jmpbuf; /* for getting control in exceptions */
void dumplist(queue_t *qb);
void dumplist(queue_t *qb)
{
queue_t *q;
ui_token_t *t;
for (q = qb->q_next; q != qb; q = q->q_next) {
t = (ui_token_t *) q;
printf("[%s] ",&(t->token));
}
printf("\n");
}
const char *ui_errstring(int errcode)
{
return cfe_errortext(errcode);
}
int ui_showerror(int errcode,char *tmplt,...)
{
va_list marker;
va_start(marker,tmplt);
xvprintf(tmplt,marker);
va_end(marker);
xprintf(": %s\n",ui_errstring(errcode));
return errcode;
}
static int ui_do_one_command(queue_t *head)
{
int res;
ui_cmdline_t cmd;
res = cmd_lookup(head, &cmd);
if (res == 0) {
res = cmd_sw_validate(&cmd,cmd.switches);
if (res != -1) {
xprintf("Invalid switch: %s\n",
cmd_sw_name(&cmd,res));
return CFE_ERR_INV_PARAM;
}
if (lib_setjmp(ui_jmpbuf) != 0) return -1;
res = (*cmd.func)(&cmd,cmd.argc-cmd.argidx,
&(cmd.argv[cmd.argidx]));
}
cmd_free(&cmd);
return res;
}
void ui_restart(int arg)
{
if (arg == 0) arg = -1;
lib_longjmp(ui_jmpbuf,arg);
}
int ui_init_cmddisp(void)
{
cmd_init();
return 0;
}
int ui_showusage(ui_cmdline_t *cmd)
{
cmd_showusage(cmd);
return CFE_ERR_INV_COMMAND;
}
/* *********************************************************************
* ui_docommands_internal(head)
*
* Process (possibly multiple) commands from a list of tokens
*
* Input parameters:
* buf - buffer
*
* Return value:
* exit status of first command that failed, or null
********************************************************************* */
static int ui_docommands_internal(queue_t *head)
{
queue_t cmdqueue;
ui_command_t *cmd;
int status = CMD_ERR_BLANK;
int term;
q_init(&cmdqueue);
/*
* Find all the individual commands
*/
while ((cmd = cmd_readcommand(head))) {
if (cmd == NULL) {
return CMD_ERR_BLANK;
}
q_enqueue(&cmdqueue,(queue_t *) cmd);
}
/*
* Do each command
*/
while ((cmd = (ui_command_t *) q_deqnext(&(cmdqueue)))) {
status = ui_do_one_command(&(cmd->head));
term = cmd->term;
KFREE(cmd);
if (status == CMD_ERR_BLANK) continue;
/*
* And causes us to stop at the first failure.
*/
if ((term == CMD_TERM_AND) && (status != 0)) break;
/*
* OR causes us to stop at the first success.
*/
if ((term == CMD_TERM_OR) && (status == 0)) break;
/*
* Neither AND nor OR causes us to keep chugging away.
*/
}
/*
* Free any remaining tokens and commands that we did not do
*/
while ((cmd = (ui_command_t *) q_deqnext(&(cmdqueue)))) {
cmd_free_tokens(&(cmd->head));
KFREE(cmd);
}
return status;
}
int ui_docommands(char *str)
{
queue_t cmd_list;
int res;
/* Convert the command into a token list */
cmd_build_list(&cmd_list,str);
/* Walk the list and expand environment variables */
cmd_walk_and_expand(&cmd_list);
/* Process each command. This removes tokens from the list */
res = ui_docommands_internal(&cmd_list);
/* Free any leftover tokens. There should not be any. */
cmd_free_tokens(&cmd_list);
return res;
}
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