Merge branch 'km/submodule-doc-use-sm-path' into maint

[thirdparty/git.git] / pack-check.c

diff --git a/pack-check.c b/pack-check.c
index 073c1fbd46dfeeb215c209aa0659768e72b81c3b..2cc3603189b8cd27781fd16cba2eb10a16817038 100644 (file)
--- a/pack-check.c
+++ b/pack-check.c
@@ -1,8 +1,10 @@
 #include "cache.h"
+#include "repository.h"
 #include "pack.h"
 #include "pack-revindex.h"
 #include "progress.h"
 #include "packfile.h"
+#include "object-store.h"
 
 struct idx_entry {
        off_t                offset;
@@ -41,12 +43,13 @@ int check_pack_crc(struct packed_git *p, struct pack_window **w_curs,
        } while (len);
 
        index_crc = p->index_data;
-       index_crc += 2 + 256 + p->num_objects * (20/4) + nr;
+       index_crc += 2 + 256 + p->num_objects * (the_hash_algo->rawsz/4) + nr;
 
        return data_crc != ntohl(*index_crc);
 }
 
-static int verify_packfile(struct packed_git *p,
+static int verify_packfile(struct repository *r,
+                          struct packed_git *p,
                           struct pack_window **w_curs,
                           verify_fn fn,
                           struct progress *progress, uint32_t base_count)
@@ -54,7 +57,7 @@ static int verify_packfile(struct packed_git *p,
 {
        off_t index_size = p->index_size;
        const unsigned char *index_base = p->index_data;
-       git_SHA_CTX ctx;
+       git_hash_ctx ctx;
        unsigned char hash[GIT_MAX_RAWSZ], *pack_sig;
        off_t offset = 0, pack_sig_ofs = 0;
        uint32_t nr_objects, i;
@@ -64,24 +67,24 @@ static int verify_packfile(struct packed_git *p,
        if (!is_pack_valid(p))
                return error("packfile %s cannot be accessed", p->pack_name);
 
-       git_SHA1_Init(&ctx);
+       the_hash_algo->init_fn(&ctx);
        do {
                unsigned long remaining;
                unsigned char *in = use_pack(p, w_curs, offset, &remaining);
                offset += remaining;
                if (!pack_sig_ofs)
-                       pack_sig_ofs = p->pack_size - 20;
+                       pack_sig_ofs = p->pack_size - the_hash_algo->rawsz;
                if (offset > pack_sig_ofs)
                        remaining -= (unsigned int)(offset - pack_sig_ofs);
-               git_SHA1_Update(&ctx, in, remaining);
+               the_hash_algo->update_fn(&ctx, in, remaining);
        } while (offset < pack_sig_ofs);
-       git_SHA1_Final(hash, &ctx);
+       the_hash_algo->final_fn(hash, &ctx);
        pack_sig = use_pack(p, w_curs, pack_sig_ofs, NULL);
-       if (hashcmp(hash, pack_sig))
-               err = error("%s SHA1 checksum mismatch",
+       if (!hasheq(hash, pack_sig))
+               err = error("%s pack checksum mismatch",
                            p->pack_name);
-       if (hashcmp(index_base + index_size - 40, pack_sig))
-               err = error("%s SHA1 does not match its index",
+       if (!hasheq(index_base + index_size - the_hash_algo->hexsz, pack_sig))
+               err = error("%s pack checksum does not match its index",
                            p->pack_name);
        unuse_pack(w_curs);
 
@@ -126,14 +129,14 @@ static int verify_packfile(struct packed_git *p,
 
                if (type == OBJ_BLOB && big_file_threshold <= size) {
                        /*
-                        * Let check_sha1_signature() check it with
+                        * Let check_object_signature() check it with
                         * the streaming interface; no point slurping
                         * the data in-core only to discard.
                         */
                        data = NULL;
                        data_valid = 0;
                } else {
-                       data = unpack_entry(p, entries[i].offset, &type, &size);
+                       data = unpack_entry(r, p, entries[i].offset, &type, &size);
                        data_valid = 1;
                }
 
@@ -141,7 +144,7 @@ static int verify_packfile(struct packed_git *p,
                        err = error("cannot unpack %s from %s at offset %"PRIuMAX"",
                                    oid_to_hex(entries[i].oid.oid), p->pack_name,
                                    (uintmax_t)entries[i].offset);
-               else if (check_sha1_signature(entries[i].oid.hash, data, size, typename(type)))
+               else if (check_object_signature(entries[i].oid.oid, data, size, type_name(type)))
                        err = error("packed %s from %s is corrupt",
                                    oid_to_hex(entries[i].oid.oid), p->pack_name);
                else if (fn) {
@@ -165,8 +168,8 @@ int verify_pack_index(struct packed_git *p)
 {
        off_t index_size;
        const unsigned char *index_base;
-       git_SHA_CTX ctx;
-       unsigned char sha1[20];
+       git_hash_ctx ctx;
+       unsigned char hash[GIT_MAX_RAWSZ];
        int err = 0;
 
        if (open_pack_index(p))
@@ -175,16 +178,16 @@ int verify_pack_index(struct packed_git *p)
        index_base = p->index_data;
 
        /* Verify SHA1 sum of the index file */
-       git_SHA1_Init(&ctx);
-       git_SHA1_Update(&ctx, index_base, (unsigned int)(index_size - 20));
-       git_SHA1_Final(sha1, &ctx);
-       if (hashcmp(sha1, index_base + index_size - 20))
-               err = error("Packfile index for %s SHA1 mismatch",
+       the_hash_algo->init_fn(&ctx);
+       the_hash_algo->update_fn(&ctx, index_base, (unsigned int)(index_size - the_hash_algo->rawsz));
+       the_hash_algo->final_fn(hash, &ctx);
+       if (!hasheq(hash, index_base + index_size - the_hash_algo->rawsz))
+               err = error("Packfile index for %s hash mismatch",
                            p->pack_name);
        return err;
 }
 
-int verify_pack(struct packed_git *p, verify_fn fn,
+int verify_pack(struct repository *r, struct packed_git *p, verify_fn fn,
                struct progress *progress, uint32_t base_count)
 {
        int err = 0;
@@ -194,7 +197,7 @@ int verify_pack(struct packed_git *p, verify_fn fn,
        if (!p->index_data)
                return -1;
 
-       err |= verify_packfile(p, &w_curs, fn, progress, base_count);
+       err |= verify_packfile(r, p, &w_curs, fn, progress, base_count);
        unuse_pack(&w_curs);
 
        return err;