Her Smidt / esp8266-drive

The driver for the ESP8266 WiFi module

Fork of esp8266-driver by ESP8266

ESP8266/ATParser/BufferedSerial/BufferedPrint.c@2:8d9d75e2fb5f, 2017-06-23 (annotated)

Committer:
Zorgino
Date:
Fri Jun 23 10:33:44 2017 +0000
Revision:
2:8d9d75e2fb5f
Parent:
0:6946b0b9e323 
wef

Who changed what in which revision?

UserRevisionLine numberNew contents of line
group-ESP8266 0:6946b0b9e323 1 /*
group-ESP8266 0:6946b0b9e323 2 * Copyright (c) 2014-2015 ARM Limited. All rights reserved.
group-ESP8266 0:6946b0b9e323 3 * SPDX-License-Identifier: Apache-2.0
group-ESP8266 0:6946b0b9e323 4 * Licensed under the Apache License, Version 2.0 (the License); you may
group-ESP8266 0:6946b0b9e323 5 * not use this file except in compliance with the License.
group-ESP8266 0:6946b0b9e323 6 * You may obtain a copy of the License at
group-ESP8266 0:6946b0b9e323 7 *
group-ESP8266 0:6946b0b9e323 8 * http://www.apache.org/licenses/LICENSE-2.0
group-ESP8266 0:6946b0b9e323 9 *
group-ESP8266 0:6946b0b9e323 10 * Unless required by applicable law or agreed to in writing, software
group-ESP8266 0:6946b0b9e323 11 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
group-ESP8266 0:6946b0b9e323 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
group-ESP8266 0:6946b0b9e323 13 * See the License for the specific language governing permissions and
group-ESP8266 0:6946b0b9e323 14 * limitations under the License.
group-ESP8266 0:6946b0b9e323 15 */
group-ESP8266 0:6946b0b9e323 16
group-ESP8266 0:6946b0b9e323 17 #include <stdarg.h>
group-ESP8266 0:6946b0b9e323 18 #include <stdint.h>
group-ESP8266 0:6946b0b9e323 19 #include <stdio.h>
group-ESP8266 0:6946b0b9e323 20 #include <string.h>
group-ESP8266 0:6946b0b9e323 21
group-ESP8266 0:6946b0b9e323 22 #include "mbed_error.h"
group-ESP8266 0:6946b0b9e323 23
group-ESP8266 0:6946b0b9e323 24 size_t BufferedSerialThunk(void *buf_serial, const void *s, size_t length);
group-ESP8266 0:6946b0b9e323 25
group-ESP8266 0:6946b0b9e323 26 int BufferedPrintfC(void *stream, int size, const char* format, va_list arg)
group-ESP8266 0:6946b0b9e323 27 {
group-ESP8266 0:6946b0b9e323 28 int r;
group-ESP8266 0:6946b0b9e323 29 char buffer[512];
group-ESP8266 0:6946b0b9e323 30 if (size >= 512) {
group-ESP8266 0:6946b0b9e323 31 return -1;
group-ESP8266 0:6946b0b9e323 32 }
group-ESP8266 0:6946b0b9e323 33 memset(buffer, 0, size);
group-ESP8266 0:6946b0b9e323 34 r = vsprintf(buffer, format, arg);
group-ESP8266 0:6946b0b9e323 35 // this may not hit the heap but should alert the user anyways
group-ESP8266 0:6946b0b9e323 36 if(r > (int32_t) size) {
group-ESP8266 0:6946b0b9e323 37 error("%s %d buffer overwrite (max_buf_size: %d exceeded: %d)!\r\n", __FILE__, __LINE__, size, r);
group-ESP8266 0:6946b0b9e323 38 return 0;
group-ESP8266 0:6946b0b9e323 39 }
group-ESP8266 0:6946b0b9e323 40 if ( r > 0 ) {
group-ESP8266 0:6946b0b9e323 41 BufferedSerialThunk(stream, buffer, r);
group-ESP8266 0:6946b0b9e323 42 }
group-ESP8266 0:6946b0b9e323 43 return r;
group-ESP8266 0:6946b0b9e323 44 }