- char sum[SUM_LENGTH];
- int i,j;
-
- checksum_init();
-
- for (i=1;i<argc;i++) {
- struct stat st;
- if (stat(argv[i],&st) == 0) {
- file_checksum(argv[i],sum,st.st_size);
- for (j=0;j<SUM_LENGTH;j++)
- printf("%02X",(unsigned char)sum[j]);
- printf(" %s\n",argv[i]);
- }
+ char s[4];
+ MDbegin(&sumMD);
+ sumresidue=0;
+ SIVAL(s,0,checksum_seed);
+ sum_update(s,4);
+}
+
+void sum_update(char *p,int len)
+{
+ int i;
+ if (len + sumresidue < CSUM_CHUNK) {
+ memcpy(sumrbuf+sumresidue, p, len);
+ sumresidue += len;
+ return;
+ }
+
+ if (sumresidue) {
+ i = MIN(CSUM_CHUNK-sumresidue,len);
+ memcpy(sumrbuf+sumresidue,p,i);
+ MDupdate(&sumMD, sumrbuf, (i+sumresidue)*8);
+ len -= i;
+ p += i;
+ }
+
+ for(i = 0; i + CSUM_CHUNK <= len; i += CSUM_CHUNK) {
+ memcpy(sumrbuf,p+i,CSUM_CHUNK);
+ MDupdate(&sumMD, sumrbuf, CSUM_CHUNK*8);
+ }
+
+ if (len - i > 0) {
+ sumresidue = len-i;
+ memcpy(sumrbuf,p+i,sumresidue);
+ } else {
+ sumresidue = 0;