120 lines
3.5 KiB
C
120 lines
3.5 KiB
C
/****************************************************************************
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* apps/nshlib/nsh_printf.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <ctype.h>
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#include <libgen.h>
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#include <errno.h>
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#include "nsh.h"
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#include "nsh_console.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: cmd_printf
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****************************************************************************/
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#ifndef CONFIG_NSH_DISABLE_PRINTF
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int cmd_printf(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv)
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{
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FAR char *fmt;
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char ch;
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unsigned int value;
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int len;
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int i;
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/* parse each argument, detecting the right action to take
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* case it doesn't starts with a format then just print it
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*/
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for (i = 1; i < argc; i++)
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{
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fmt = argv[i];
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/* Is it really a FORMAT ? */
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if (fmt[0] == '\\')
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{
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fmt++;
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ch = fmt[0];
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switch (ch)
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{
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case 'x':
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fmt++;
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value = strtoul(fmt, NULL, 16);
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len = strnlen(fmt, 10);
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if (len >= 7)
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{
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nsh_output(vtbl, "%c%c%c%c", value & 0xff,
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(value & 0xff00) >> 8,
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(value & 0xff0000) >> 16,
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(value & 0xff000000) >> 24);
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}
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else if (len >= 3)
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{
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nsh_output(vtbl, "%c%c", value & 0xff,
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(value & 0xff00) >> 8);
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}
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else if (len >= 1)
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{
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nsh_output(vtbl, "%c", value & 0xff);
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}
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break;
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case 'n':
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nsh_output(vtbl, "\n");
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break;
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case 'r':
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nsh_output(vtbl, "\r");
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break;
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case 't':
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nsh_output(vtbl, "\t");
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break;
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default:
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break;
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}
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}
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else
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{
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nsh_output(vtbl, "%s", argv[i]);
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}
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}
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return OK;
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}
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#endif
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