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/* $OpenBSD: getst.c,v 1.5 1998/02/25 15:51:16 art Exp $ */
/* $KTH: getst.c,v 1.6 1997/03/23 03:53:11 joda Exp $ */
/*
* This source code is no longer held under any constraint of USA
* `cryptographic laws' since it was exported legally. The cryptographic
* functions were removed from the code and a "Bones" distribution was
* made. A Commodity Jurisdiction Request #012-94 was filed with the
* USA State Department, who handed it to the Commerce department. The
* code was determined to fall under General License GTDA under ECCN 5D96G,
* and hence exportable. The cryptographic interfaces were re-added by Eric
* Young, and then KTH proceeded to maintain the code in the free world.
*
*/
/*
* Copyright (C) 1989 by the Massachusetts Institute of Technology
*
* Export of this software from the United States of America is assumed
* to require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*/
#include "krb_locl.h"
/*
* getst() takes a file descriptor, a string and a count. It reads
* from the file until either it has read "count" characters, or until
* it reads a null byte. When finished, what has been read exists in
* the given string "s". If "count" characters were actually read, the
* last is changed to a null, so the returned string is always null-
* terminated. getst() returns the number of characters read, including
* the null terminator.
*/
int
getst(int fd, char *s, int n)
{
int count = n;
while (read(fd, s, 1) > 0 && --count)
if (*s++ == '\0')
return (n - count);
*s = '\0';
return (n - count);
}
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