X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/ebb0a6f61826aeaba0aeb1866df41dee8b7c7269..feaa89c410544775afc19eac4a966e8345d5134a:/match.c

diff --git a/match.c b/match.c
index e15f4401..33fc6e16 100644
--- a/match.c
+++ b/match.c
@@ -91,7 +91,6 @@ static off_t last_match;
 
 
 static void matched(int f,struct sum_struct *s,struct map_struct *buf,
-		    off_t len,
 		    int offset,int i)
 {
   int n = offset - last_match;
@@ -123,28 +122,6 @@ static void matched(int f,struct sum_struct *s,struct map_struct *buf,
 }
 
 
-static inline char *window_ptr(struct map_struct *buf,int off,int len)
-{
-  static char *p=NULL;
-  static int p_len = 0;
-  static int p_off = 0;  
-
-  if (off == 0) {
-    p_off = 0;
-    p_len = CHUNK_SIZE;
-    p = map_ptr(buf,p_off,p_len);    
-  }
-
-  while (off+len > p_off+p_len) {
-    p_off += CHUNK_SIZE;
-    p_len = CHUNK_SIZE;
-    p = map_ptr(buf,p_off,p_len);  
-  }
-
-  return(p + (off-p_off));
-}
-
-
 static void hash_search(int f,struct sum_struct *s,
 			struct map_struct *buf,off_t len)
 {
@@ -152,16 +129,16 @@ static void hash_search(int f,struct sum_struct *s,
   int end;
   char sum2[SUM_LENGTH];
   uint32 s1, s2, sum; 
-  char *map;
+  signed char *map;
 
   if (verbose > 2)
     fprintf(FERROR,"hash search b=%d len=%d\n",s->n,(int)len);
 
   k = MIN(len, s->n);
 
-  map = window_ptr(buf,0,k);
+  map = (signed char *)map_ptr(buf,0,k);
 
-  sum = get_checksum1(map, k);
+  sum = get_checksum1((char *)map, k);
   s1 = sum & 0xFFFF;
   s2 = sum >> 16;
   if (verbose > 3)
@@ -197,16 +174,16 @@ static void hash_search(int f,struct sum_struct *s,
 
 	  if (!done_csum2) {
 	    int l = MIN(s->n,len-offset);
-	    map = window_ptr(buf,offset,l);
-	    get_checksum2(map,l,sum2);
+	    map = (signed char *)map_ptr(buf,offset,l);
+	    get_checksum2((char *)map,l,sum2);
 	    done_csum2 = 1;
 	  }
 	  if (memcmp(sum2,s->sums[i].sum2,csum_length) == 0) {
-	    matched(f,s,buf,len,offset,i);
+	    matched(f,s,buf,offset,i);
 	    offset += s->sums[i].len - 1;
 	    k = MIN((len-offset), s->n);
-	    map = window_ptr(buf,offset,k);
-	    sum = get_checksum1(map, k);
+	    map = (signed char *)map_ptr(buf,offset,k);
+	    sum = get_checksum1((char *)map, k);
 	    s1 = sum & 0xFFFF;
 	    s2 = sum >> 16;
 	    ++matches;
@@ -220,13 +197,13 @@ static void hash_search(int f,struct sum_struct *s,
     }
 
     /* Trim off the first byte from the checksum */
-    map = window_ptr(buf,offset,k+1);
-    s1 -= map[0] + 1;
-    s2 -= k * (map[0]+1);
+    map = (signed char *)map_ptr(buf,offset,k+1);
+    s1 -= map[0] + CHAR_OFFSET;
+    s2 -= k * (map[0]+CHAR_OFFSET);
 
     /* Add on the next byte (if there is one) to the checksum */
     if (k < (len-offset)) {
-      s1 += (map[k]+1);
+      s1 += (map[k]+CHAR_OFFSET);
       s2 += s1;
     } else {
       --k;
@@ -234,8 +211,8 @@ static void hash_search(int f,struct sum_struct *s,
 
   } while (++offset < end);
 
-  matched(f,s,buf,len,len,-1);
-  window_ptr(buf,len-1,1);
+  matched(f,s,buf,len,-1);
+  map_ptr(buf,len-1,1);
 }
 
 
@@ -262,7 +239,7 @@ void match_sums(int f,struct sum_struct *s,struct map_struct *buf,off_t len)
     if (verbose > 2) 
       fprintf(FERROR,"done hash search\n");
   } else {
-    matched(f,s,buf,len,len,-1);
+    matched(f,s,buf,len,-1);
   }
 
   sum_end(file_sum);