1 files changed, 47 insertions, 0 deletions
diff --git a/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/core/iwasm/libraries/libc-wasi/sandboxed-system-primitives/src/str.c b/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/core/iwasm/libraries/libc-wasi/sandboxed-system-primitives/src/str.c
new file mode 100644
index 000000000..858d8d5e4
--- /dev/null
+++ b/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/core/iwasm/libraries/libc-wasi/sandboxed-system-primitives/src/str.c
@@ -0,0 +1,47 @@
+// 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;
+}