1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
| | /* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright Red Hat
* Author: David Gibson <david@gibson.dropbear.id.au>
*/
#ifndef LINEREAD_H
#define LINEREAD_H
#define LINEREAD_BUFFER_SIZE 8192
/**
* struct lineread - Line reader state
* @fd: File descriptor lines are read from
* @next_line: Offset in @buf of the start of the first line not yet
* returned by lineread_get()
* @count: Number of bytes in @buf read from the file, but not yet
* returned by lineread_get()
* @buf: Buffer storing data read from file.
*/
struct lineread {
int fd;
ssize_t next_line;
ssize_t count;
/* One extra byte for possible trailing \0 */
char buf[LINEREAD_BUFFER_SIZE+1];
};
void lineread_init(struct lineread *lr, int fd);
ssize_t lineread_get(struct lineread *lr, char **line);
#endif /* _LINEREAD_H */
|