libgpio/file_8h_source.html

 /*
  * Copyright (c) 2015-2017 Animal Creek Technologies, Inc.
  *
  * Released under the MIT license.
  * SPDX-License-Identifier: MIT
  */

 #ifndef __LIBFILE_H
 #define __LIBFILE_H

 #include <unistd.h>
 #include <stdbool.h>

 int file_get_size(char *filename, off_t *size);
 bool file_is_present(char *filename);
 int file_read(int fd, void *buf, size_t len);
 int file_write(int fd, void *buf, size_t len);
 int file_owc(char *filename, void *buf, size_t len);

 #endif
file_write
int file_write(int fd, void *buf, size_t len)
Write specified number of bytes to file or socket.
Definition: file.c:106

file_get_size
int file_get_size(char *filename, off_t *size)
Get size of file in bytes.
Definition: file.c:29

file_owc
int file_owc(char *filename, void *buf, size_t len)
Open, write to, and close a file.
Definition: file.c:134

file_read
int file_read(int fd, void *buf, size_t len)
Read specified number of bytes from file or socket.
Definition: file.c:73

file_is_present
bool file_is_present(char *filename)
Determine if file is present (i.e., exists)
Definition: file.c:50