use_pack: handle signed off_t overflow

diff --git a/pack-bitmap.c b/pack-bitmap.c
index 62a98cc119e3bf5a7b71e6b47143e06653ee9d6e..637770af813eee643c8375051e419715f56a2db5 100644 (file)
--- a/pack-bitmap.c
+++ b/pack-bitmap.c
@@ -209,14 +209,12 @@ static inline uint8_t read_u8(const unsigned char *buffer, size_t *pos)
        return buffer[(*pos)++];
 }
 
+#define MAX_XOR_OFFSET 160
+
 static int load_bitmap_entries_v1(struct bitmap_index *index)
 {
-       static const size_t MAX_XOR_OFFSET = 160;
-
        uint32_t i;
-       struct stored_bitmap **recent_bitmaps;
-
-       recent_bitmaps = xcalloc(MAX_XOR_OFFSET, sizeof(struct stored_bitmap));
+       struct stored_bitmap *recent_bitmaps[MAX_XOR_OFFSET] = { NULL };
 
        for (i = 0; i < index->entry_count; ++i) {
                int xor_offset, flags;
@@ -624,7 +622,7 @@ static void show_objects_for_type(
        while (i < objects->word_alloc && ewah_iterator_next(&filter, &it)) {
                eword_t word = objects->words[i] & filter;
 
-               for (offset = 0; offset < BITS_IN_WORD; ++offset) {
+               for (offset = 0; offset < BITS_IN_EWORD; ++offset) {
                        const unsigned char *sha1;
                        struct revindex_entry *entry;
                        uint32_t hash = 0;
@@ -646,7 +644,7 @@ static void show_objects_for_type(
                        show_reach(sha1, object_type, 0, hash, bitmap_git.pack, entry->offset);
                }
 
-               pos += BITS_IN_WORD;
+               pos += BITS_IN_EWORD;
                i++;
        }
 }
@@ -778,7 +776,7 @@ int reuse_partial_packfile_from_bitmap(struct packed_git **packfile,
                        break;
                }
 
-               reuse_objects += BITS_IN_WORD;
+               reuse_objects += BITS_IN_EWORD;
        }
 
 #ifdef GIT_BITMAP_DEBUG
@@ -987,7 +985,7 @@ void test_bitmap_walk(struct rev_info *revs)
        else
                fprintf(stderr, "Mismatch!\n");
 
-       free(result);
+       bitmap_free(result);
 }
 
 static int rebuild_bitmap(uint32_t *reposition,
@@ -1003,7 +1001,7 @@ static int rebuild_bitmap(uint32_t *reposition,
        while (ewah_iterator_next(&word, &it)) {
                uint32_t offset, bit_pos;
 
-               for (offset = 0; offset < BITS_IN_WORD; ++offset) {
+               for (offset = 0; offset < BITS_IN_EWORD; ++offset) {
                        if ((word >> offset) == 0)
                                break;
 
@@ -1016,7 +1014,7 @@ static int rebuild_bitmap(uint32_t *reposition,
                                return -1;
                }
 
-               pos += BITS_IN_WORD;
+               pos += BITS_IN_EWORD;
        }
        return 0;
 }