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Annotation of researchv10no/cmd/asd/mkcsum.c, revision 1.1.1.1

1.1       root        1: #include "seal.h"
                      2: 
                      3: unsigned long
                      4: mkcsum (csum, start, limit)
                      5:        register unsigned long csum;
                      6:        char *start, *limit;
                      7: {
                      8:        register int c;
                      9: 
                     10:        while (start < limit) {
                     11:                c = (unsigned char) *start++;
                     12:                if (csum & 1)
                     13:                        csum = (csum >> 1) | CSHIBIT;
                     14:                else
                     15: 
                     16:                        csum >>= 1;
                     17:                csum += c;
                     18:                csum &= CSMASK;
                     19:        }
                     20:        return csum;
                     21: }

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