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Annotation of 43BSDReno/contrib/isode-beta/psap/bitstr2strb.c, revision 1.1

1.1     ! root        1: /* bitstr2strb.c - bit string to string of bits */
        !             2: 
        !             3: #ifndef        lint
        !             4: static char *rcsid = "$Header: /f/osi/psap/RCS/bitstr2strb.c,v 7.0 89/11/23 22:12:33 mrose Rel $";
        !             5: #endif
        !             6: 
        !             7: /* 
        !             8:  * $Header: /f/osi/psap/RCS/bitstr2strb.c,v 7.0 89/11/23 22:12:33 mrose Rel $
        !             9:  *
        !            10:  *
        !            11:  * $Log:       bitstr2strb.c,v $
        !            12:  * Revision 7.0  89/11/23  22:12:33  mrose
        !            13:  * Release 6.0
        !            14:  * 
        !            15:  */
        !            16: 
        !            17: /*
        !            18:  *                               NOTICE
        !            19:  *
        !            20:  *    Acquisition, use, and distribution of this module and related
        !            21:  *    materials are subject to the restrictions of a license agreement.
        !            22:  *    Consult the Preface in the User's Manual for the full terms of
        !            23:  *    this agreement.
        !            24:  *
        !            25:  */
        !            26: 
        !            27: 
        !            28: /* LINTLIBRARY */
        !            29: 
        !            30: #include <stdio.h>
        !            31: #include "psap.h"
        !            32: 
        !            33: /*  */
        !            34: 
        !            35: char   *bitstr2strb (pe, k)
        !            36: PE     pe;
        !            37: int    *k;
        !            38: {
        !            39:     register int    i,
        !            40:                    j,
        !            41:                    len,
        !            42:                    bit,
        !            43:                    mask;
        !            44:     register char   *dp;
        !            45:     char   *cp;
        !            46: 
        !            47:     if (pe == NULLPE)
        !            48:        return NULLCP;
        !            49: 
        !            50:     *k = len = pe -> pe_nbits;
        !            51:     if ((cp = dp = calloc (1, (unsigned) (len / 8 + 2))) == NULLCP)
        !            52:        return NULLCP;
        !            53: 
        !            54:     for (bit = i = 0, mask = 1 << (j = 7); i < len; i++) {
        !            55:        if (bit_test (pe, i))
        !            56:            bit |= mask;
        !            57:        if (j-- == 0)
        !            58:            *dp++ = bit & 0xff, bit = 0, mask = 1 << (j = 7);
        !            59:        else
        !            60:            mask >>= 1;
        !            61:     }
        !            62:     if (j != 7)
        !            63:        *dp = bit & 0xff;
        !            64: 
        !            65:     return cp;
        !            66: }

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