blob: 2822c89798cd681d86580742a70a9f3e5be78107 (
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
|
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "util.h"
int
read_file(char *path, char **output, size_t * read_size)
{
long file_size;
FILE *fp;
fp = fopen(path, "r");
if (fp == NULL)
return -1;
/* get file size */
if (fseek(fp, 0L, SEEK_END) != 0)
return -1;
file_size = ftell(fp);
if (file_size < 0)
return -1;
/* rewind to file start */
if (fseek(fp, 0L, SEEK_SET) != 0)
return -1;
/* create output buffer */
*output = malloc(sizeof(char) * (file_size + 1));
if (*output == NULL)
return -1;
/* read the file */
*read_size = fread(*output, sizeof(char), file_size, fp);
if (*read_size == 0 || ferror(fp) != 0) {
free(*output);
return -1;
}
/* enforce string termination */
(*output)[*read_size] = '\0';
return 0;
}
|
