ctermid.c

unix高级编程源代码.<<unix高级编程>>

#include	<stdio.h>
#include	<string.h>

static char	ctermid_name[L_ctermid];

char *
ctermid(char *str)
{
	if (str == NULL)
		str = ctermid_name;
	return(strcpy(str, "/dev/tty"));	/* strcpy() returns str */
}