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Annotation of 43BSDReno/contrib/isode-beta/psap/bit2prim.c, revision 1.1.1.1

1.1       root        1: /* bit2prim.c - bit string to presentation element */
                      2: 
                      3: #ifndef        lint
                      4: static char *rcsid = "$Header: /f/osi/psap/RCS/bit2prim.c,v 7.0 89/11/23 22:12:31 mrose Rel $";
                      5: #endif
                      6: 
                      7: /* 
                      8:  * $Header: /f/osi/psap/RCS/bit2prim.c,v 7.0 89/11/23 22:12:31 mrose Rel $
                      9:  *
                     10:  *
                     11:  * $Log:       bit2prim.c,v $
                     12:  * Revision 7.0  89/11/23  22:12:31  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: PE     bit2prim_aux ();
                     35: 
                     36: /*  */
                     37: 
                     38: PE     bit2prim (pe)
                     39: register PE    pe;
                     40: {
                     41:     if (pe == NULLPE)
                     42:        return NULLPE;
                     43: 
                     44:     switch (pe -> pe_form) {
                     45:        case PE_FORM_PRIM:
                     46:            if (pe -> pe_prim == NULLPED) {
                     47:                if ((pe -> pe_prim = PEDalloc (1)) == NULLPED)
                     48:                    return NULLPE;
                     49:                pe -> pe_len = 1;
                     50:                pe -> pe_nbits = 0;
                     51:            }
                     52:            /* and fall */
                     53: 
                     54:        case PE_FORM_CONS:
                     55:            if (bit2prim_aux (pe) == NULLPE)
                     56:                return NULLPE;
                     57:            break;
                     58:     }
                     59: 
                     60:     return pe;
                     61: }
                     62: 
                     63: /*  */
                     64: 
                     65: static PE  bit2prim_aux (pe)
                     66: register PE    pe;
                     67: {
                     68:     int            i;
                     69:     register PE            p;
                     70: 
                     71:     if (pe == NULLPE)
                     72:        return NULLPE;
                     73: 
                     74:     switch (pe -> pe_form) {
                     75:        case PE_FORM_PRIM:
                     76:            if (pe -> pe_prim && pe -> pe_len) {
                     77:                if ((i = (((pe -> pe_len - 1) * 8) - pe -> pe_nbits)) > 7)
                     78:                    return pe_seterr (pe, PE_ERR_BITS, NULLPE);
                     79:                pe -> pe_prim[0] = i & 0xff;
                     80: 
                     81:            }
                     82:            break;
                     83: 
                     84:        case PE_FORM_CONS:
                     85:            for (p = pe -> pe_cons; p; p = p -> pe_next)
                     86:                if (bit2prim (p) == NULLPE)
                     87:                    return NULLPE;
                     88:            break;
                     89:     }
                     90: 
                     91:     return pe;
                     92: }

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