aboutsummaryrefslogtreecommitdiffstats
path: root/tools/testing/selftests/bpf/progs/test_snprintf_single.c
blob: 3095837334d3c4ead4a319d2e62dc91192b73242 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2021 Google LLC. */

#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>

/* The format string is filled from the userspace such that loading fails */
const char fmt[10];

SEC("raw_tp/sys_enter")
int handler(const void *ctx)
{
	unsigned long long arg = 42;

	bpf_snprintf(NULL, 0, fmt, &arg, sizeof(arg));

	return 0;
}

char _license[] SEC("license") = "GPL";