46 lines
1.7 KiB
C
46 lines
1.7 KiB
C
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/*
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Copyright (C) 1989 by the Massachusetts Institute of Technology
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Export of this software from the United States of America is assumed
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to require a specific license from the United States Government.
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It is the responsibility of any person or organization contemplating
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export to obtain such a license before exporting.
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WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
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distribute this software and its documentation for any purpose and
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without fee is hereby granted, provided that the above copyright
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notice appear in all copies and that both that copyright notice and
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this permission notice appear in supporting documentation, and that
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the name of M.I.T. not be used in advertising or publicity pertaining
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to distribution of the software without specific, written prior
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permission. M.I.T. makes no representations about the suitability of
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this software for any purpose. It is provided "as is" without express
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or implied warranty.
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*/
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#include "krb_locl.h"
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RCSID("$Id: getst.c,v 1.6 1997/03/23 03:53:11 joda Exp $");
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/*
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* getst() takes a file descriptor, a string and a count. It reads
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* from the file until either it has read "count" characters, or until
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* it reads a null byte. When finished, what has been read exists in
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* the given string "s". If "count" characters were actually read, the
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* last is changed to a null, so the returned string is always null-
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* terminated. getst() returns the number of characters read, including
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* the null terminator.
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*/
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int
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getst(int fd, char *s, int n)
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{
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int count = n;
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while (read(fd, s, 1) > 0 && --count)
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if (*s++ == '\0')
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return (n - count);
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*s = '\0';
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return (n - count);
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}
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