blob: 858d8d5e409403ba694cdf7cc4164b4bc5f0685c (
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
|
// Part of the Wasmtime Project, under the Apache License v2.0 with LLVM
// Exceptions. See
// https://github.com/bytecodealliance/wasmtime/blob/main/LICENSE for license
// information.
//
// Significant parts of this file are derived from cloudabi-utils. See
// https://github.com/bytecodealliance/wasmtime/blob/main/lib/wasi/sandboxed-system-primitives/src/LICENSE
// for license information.
//
// The upstream file contains the following copyright notice:
//
// Copyright (c) 2016 Nuxi, https://nuxi.nl/
#include "ssp_config.h"
#include "bh_platform.h"
#include "str.h"
static char *
bh_strndup(const char *s, size_t n)
{
size_t l = strnlen(s, n);
char *s1 = wasm_runtime_malloc((uint32)(l + 1));
if (!s1)
return NULL;
bh_memcpy_s(s1, (uint32)(l + 1), s, (uint32)l);
s1[l] = 0;
return s1;
}
char *
str_nullterminate(const char *s, size_t len)
{
/* Copy string */
char *ret = bh_strndup(s, len);
if (ret == NULL)
return NULL;
/* Ensure that it contains no null bytes within */
if (strlen(ret) != len) {
wasm_runtime_free(ret);
errno = EILSEQ;
return NULL;
}
return ret;
}
|
