06b6ec42b9
This adds the C WASI implementation as a new crate, wasmtime-wasi-c, and adds a command-line flag to the wasmtime command-line driver to select which WASI implementation to use.
34 lines
888 B
C
34 lines
888 B
C
// Part of the Wasmtime Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://github.com/CraneStation/wasmtime/blob/master/LICENSE for license information.
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//
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// Significant parts of this file are derived from cloudabi-utils. See
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// https://github.com/CraneStation/wasmtime/blob/master/lib/wasi/sandboxed-system-primitives/src/LICENSE
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// for license information.
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//
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// The upstream file contains the following copyright notice:
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//
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// Copyright (c) 2016 Nuxi, https://nuxi.nl/
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#include "config.h"
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include "str.h"
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char *str_nullterminate(const char *s, size_t len) {
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// Copy string.
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char *ret = strndup(s, len);
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if (ret == NULL)
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return NULL;
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// Ensure that it contains no null bytes within.
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if (strlen(ret) != len) {
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free(ret);
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errno = EILSEQ;
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return NULL;
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}
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return ret;
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}
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