fig5.13

UNIX环境高级编程第二版（英文版）配书的源代码

#include "apue.h"

int
main(int argc, char *argv[])
{
	if (argc != 3)
		err_quit("usage: a.out <directory> <prefix>");

	printf("%s\n", tempnam(argv[1][0] != ' ' ? argv[1] : NULL,
	  argv[2][0] != ' ' ? argv[2] : NULL));

	exit(0);
}