t_getpass.c

APUE(第二版)的随书源代码,与第一版的代码相比增加了一些章节的代码(详见第二版的说明)

#include	"ourhdr.h"

char	*getpass(const char *);

int
main(void)
{
	char	*ptr;

	if ( (ptr = getpass("Enter password:")) == NULL)
		err_sys("getpass error");
	printf("password: %s\n", ptr);

	/* now use password (probably encrypt it) ... */

	while (*ptr != 0)
		*ptr++ = 0;		/* zero it out when we're done with it */

	exit(0);
}