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/* Copyright (c) 2022, Nokia
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <odp/api/hints.h>
#include <odp_print_internal.h>
#include <stdarg.h>
#include <stdio.h>
/* Helps with snprintf() return value checking
*
* Otherwise like snprintf(), but returns always the number of characters
* printed (without the end mark) or zero on error. Terminates the string
* always with the end mark. */
ODP_PRINTF_FORMAT(3, 4)
int _odp_snprint(char *str, size_t size, const char *format, ...)
{
va_list args;
int len;
/* No space to print new characters */
if (size < 1)
return 0;
if (size < 2) {
str[0] = 0;
return 0;
}
va_start(args, format);
len = vsnprintf(str, size, format, args);
va_end(args);
/* Error. Ensure that string has the end mark */
if (len < 0) {
str[0] = 0;
return 0;
}
/* Print would have been longer. Return the number of characters printed. */
if (len >= (int)size)
return (int)size - 1;
return len;
}
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