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1// Copyright (c) Facebook, Inc. and its affiliates. (http://www.facebook.com)
2#include <climits>
3#include <cstdarg>
4#include <cstdio>
5
6#include "cpython-func.h"
7
8#include "globals.h"
9#include "utils.h"
10
11namespace py {
12
13PY_EXPORT int PyOS_snprintf(char* str, size_t size, const char* format, ...) {
14 va_list va;
15 va_start(va, format);
16 int result = PyOS_vsnprintf(str, size, format, va);
17 va_end(va);
18 return result;
19}
20
21PY_EXPORT int PyOS_vsnprintf(char* str, size_t size, const char* format,
22 va_list va) {
23 DCHECK(str != nullptr, "string to write to cannot be null");
24 DCHECK(size > 0, "number of characters to write must be positive");
25 DCHECK(format != nullptr, "format string cannot be null");
26 if (size > (INT_MAX - 1)) {
27 str[size - 1] = '\0';
28 return -666;
29 }
30 return std::vsnprintf(str, size, format, va);
31}
32
33} // namespace py