#include <stdio.h>

#include <stdlib.h>

#include <stdarg.h>

#include "portability.h"

int

pcap_vasprintf(char **strp, const char *format, va_list args)

{

	int len;

	size_t str_size;

	char *str;

	int ret;

	len = _vscprintf(format, args);

	if (len == -1) {

		*strp = NULL;

		return (-1);

	}

	str_size = len + 1;

	str = malloc(str_size);

	if (str == NULL) {

		*strp = NULL;

		return (-1);

	}

	ret = pcap_vsnprintf(str, str_size, format, args);

	if (ret == -1) {

		free(str);

		*strp = NULL;

		return (-1);

	}

	*strp = str;

	/*

	 * pcap_vsnprintf() shouldn't truncate the string, as we have

	 * allocated a buffer large enough to hold the string, so its

	 * return value should be the number of characters printed.

	 */

	return (ret);

}

int

pcap_asprintf(char **strp, const char *format, ...)

{

	va_list args;

	int ret;

	va_start(args, format);

	ret = pcap_vasprintf(strp, format, args);

	va_end(args);

	return (ret);

}