1// SPDX-License-Identifier: GPL-2.0
2#include <sys/types.h>
3#include <linux/kernel.h>
4#include <stdio.h>
5
6int vscnprintf(char *buf, size_t size, const char *fmt, va_list args)
7{
8 int i = vsnprintf(buf, size, fmt, args);
9 ssize_t ssize = size;
10
11 return (i >= ssize) ? (ssize - 1) : i;
12}
13
14int scnprintf(char * buf, size_t size, const char * fmt, ...)
15{
16 ssize_t ssize = size;
17 va_list args;
18 int i;
19
20 va_start(args, fmt);
21 i = vsnprintf(buf, size, fmt, args);
22 va_end(args);
23
24 return (i >= ssize) ? (ssize - 1) : i;
25}
26
27int scnprintf_pad(char * buf, size_t size, const char * fmt, ...)
28{
29 ssize_t ssize = size;
30 va_list args;
31 int i;
32
33 va_start(args, fmt);
34 i = vscnprintf(buf, size, fmt, args);
35 va_end(args);
36
37 if (i < (int) size) {
38 for (; i < (int) size; i++)
39 buf[i] = ' ';
40 buf[i] = 0x0;
41 }
42
43 return (i >= ssize) ? (ssize - 1) : i;
44}
45

source code of linux/tools/lib/vsprintf.c