45 lines · c
1// SPDX-License-Identifier: GPL-2.02#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