1 // Copyright 2006 Google Inc. 2 // All Rights Reserved. 3 // Author: renn 4 // 5 // Contains file io functions (mainly for file parsing), that might not be 6 // available, on embedded devices, or that have an incomplete implementation 7 // there. 8 // 9 // Licensed under the Apache License, Version 2.0 (the "License"); 10 // you may not use this file except in compliance with the License. 11 // You may obtain a copy of the License at 12 // http://www.apache.org/licenses/LICENSE-2.0 13 // Unless required by applicable law or agreed to in writing, software 14 // distributed under the License is distributed on an "AS IS" BASIS, 15 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 // See the License for the specific language governing permissions and 17 // limitations under the License. 18 19 #ifndef SCANUTILS_H 20 #define SCANUTILS_H 21 22 #ifdef EMBEDDED 23 24 #include <stdint.h> 25 #include <stddef.h> 26 #include <stdio.h> 27 #include <klibc/extern.h> 28 #include <sys/stat.h> 29 30 // Attempts to parse the given file stream s as an integer of the base 31 // 'base'. Returns the first successfully parsed integer as a uintmax_t, or 32 // 0, if none was found. 33 uintmax_t streamtoumax(FILE* s, int base); 34 35 // Parse a file stream according to the given format. See the fscanf manpage 36 // for more information, as this function attempts to mimic its behavior. 37 // Note that scientific loating-point notation is not supported. 38 int fscanf(FILE* stream, const char *format, ...); 39 40 // Parse a file stream according to the given format. See the fscanf manpage 41 // for more information, as this function attempts to mimic its behavior. 42 // Note that scientific loating-point notation is not supported. 43 int vfscanf(FILE* stream, const char *format, va_list ap); 44 45 // Create a file at the specified path. See the creat manpage for more 46 // information, as this function attempts to mimic its behavior. 47 int creat(const char *pathname, mode_t mode); 48 49 // Convert the specified C-String to a float. Returns the first parsed float, 50 // or 0.0 if no floating point value could be found. Note that scientific 51 // floating-point notation is not supported. 52 double strtofloat(const char* s); 53 54 #endif 55 56 #endif 57