blob: 777f5c46b1736ec4521489537737a836f458015b (
plain)
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
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
/*
* Copyright (c) 2007-2013 by Aleksey Cheusov
*
* See LICENSE file in the distribution.
*/
#include <stdio.h>
#include <stdlib.h>
#include "decls.h"
ssize_t
getline(char** lineptr, size_t* n, FILE* stream)
{
int c;
size_t sz = 0;
while (c = getc (stream), c != EOF){
if (sz+1 >= *n){
/* +2 is for `c' and 0-terminator */
*n = *n * 3 / 2 + 2;
*lineptr = realloc (*lineptr, *n);
if (!*lineptr)
return -1;
}
(*lineptr) [sz++] = (char) c;
if (c == '\n')
break;
}
if (ferror (stdin))
return (ssize_t) -1;
if (!sz){
if (feof (stdin)){
return (ssize_t) -1;
}else if (!*n){
*lineptr = malloc (1);
if (!*lineptr)
return -1;
*n = 1;
}
}
(*lineptr) [sz] = 0;
return sz;
}
|