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/*
* fgetst.c
*
* Copyright 1987, 1988 by the Massachusetts Institute of Technology.
*
* For copying and distribution information, please see the file
* <mit-copyright.h>.
*/
#include "mit-copyright.h"
#include <stdio.h>
#include "krb.h"
#include "krb4int.h"
/*
* fgetst takes a file descriptor, a character pointer, and a count.
* It reads from the file it has either read "count" characters, or
* until it reads a null byte. When finished, what has been read exists
* in "s". If "count" characters were actually read, the last is changed
* to a null, so the returned string is always null-terminated. fgetst
* returns the number of characters read, including the null terminator.
*/
int
fgetst(f, s, n)
FILE *f;
register char *s;
int n;
{
register int count = n;
int ch; /* NOT char; otherwise you don't see EOF */
while ((ch = getc(f)) != EOF && ch && --count) {
*s++ = ch;
}
*s = '\0';
return (n - count);
}
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