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