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Annotation of 43BSDReno/kerberosIV/krb/fgetst.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * $Source: /mit/kerberos/src/lib/krb/RCS/fgetst.c,v $
        !             3:  * $Author: jtkohl $ 
        !             4:  *
        !             5:  * Copyright 1987, 1988 by the Massachusetts Institute of Technology. 
        !             6:  *
        !             7:  * For copying and distribution information, please see the file
        !             8:  * <mit-copyright.h>. 
        !             9:  */
        !            10: 
        !            11: #ifndef lint
        !            12: static char rcsid_fgetst_c[] =
        !            13: "$Header: fgetst.c,v 4.0 89/01/23 10:08:31 jtkohl Exp $";
        !            14: #endif                         /* lint */
        !            15: 
        !            16: #include <mit-copyright.h>
        !            17: #include <stdio.h>
        !            18: 
        !            19: /*
        !            20:  * fgetst takes a file descriptor, a character pointer, and a count.
        !            21:  * It reads from the file it has either read "count" characters, or
        !            22:  * until it reads a null byte.  When finished, what has been read exists
        !            23:  * in "s". If "count" characters were actually read, the last is changed
        !            24:  * to a null, so the returned string is always null-terminated.  fgetst
        !            25:  * returns the number of characters read, including the null terminator. 
        !            26:  */
        !            27: 
        !            28: fgetst(f, s, n)
        !            29:     FILE   *f;
        !            30:     register char *s;
        !            31:     int     n;
        !            32: {
        !            33:     register count = n;
        !            34:     int     ch;                /* NOT char; otherwise you don't see EOF */
        !            35: 
        !            36:     while ((ch = getc(f)) != EOF && ch && --count) {
        !            37:        *s++ = ch;
        !            38:     }
        !            39:     *s = '\0';
        !            40:     return (n - count);
        !            41: }

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