Convert memcpy(a,b,20) to hashcpy(a,b).
authorShawn Pearce <spearce@spearce.org>
Wed, 23 Aug 2006 06:49:00 +0000 (02:49 -0400)
committerJunio C Hamano <junkio@cox.net>
Wed, 23 Aug 2006 20:53:10 +0000 (13:53 -0700)
This abstracts away the size of the hash values when copying them
from memory location to memory location, much as the introduction
of hashcmp abstracted away hash value comparsion.

A few call sites were using char* rather than unsigned char* so
I added the cast rather than open hashcpy to be void*.  This is a
reasonable tradeoff as most call sites already use unsigned char*
and the existing hashcmp is also declared to be unsigned char*.

[jc: Splitted the patch to "master" part, to be followed by a
 patch for merge-recursive.c which is not in "master" yet.

 Fixed the cast in the latter hunk to combine-diff.c which was
 wrong in the original.

 Also converted ones left-over in combine-diff.c, diff-lib.c and
 upload-pack.c ]

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
34 files changed:
blame.c
builtin-diff.c
builtin-pack-objects.c
builtin-read-tree.c
builtin-unpack-objects.c
builtin-update-index.c
builtin-write-tree.c
cache-tree.c
cache.h
combine-diff.c
connect.c
convert-objects.c
csum-file.c
diff-lib.c
diff.c
fetch-pack.c
fetch.c
fsck-objects.c
http-fetch.c
http-push.c
index-pack.c
mktree.c
object.c
patch-id.c
receive-pack.c
refs.c
revision.c
send-pack.c
sha1_file.c
sha1_name.c
tree-walk.c
tree.c
unpack-trees.c
upload-pack.c

diff --git a/blame.c b/blame.c
index c253b9ca45cf7d860052ddae95bc1ed34974ffb8..5a8af726230611ff72de545bd013224895093a4b 100644 (file)
--- a/blame.c
+++ b/blame.c
@@ -176,7 +176,7 @@ static int get_blob_sha1(struct tree *t, const char *pathname,
        if (i == 20)
                return -1;
 
-       memcpy(sha1, blob_sha1, 20);
+       hashcpy(sha1, blob_sha1);
        return 0;
 }
 
@@ -191,7 +191,7 @@ static int get_blob_sha1_internal(const unsigned char *sha1, const char *base,
            strcmp(blame_file + baselen, pathname))
                return -1;
 
-       memcpy(blob_sha1, sha1, 20);
+       hashcpy(blob_sha1, sha1);
        return -1;
 }
 
index 874f773421620642425e67f650de2a34396f1c0f..a6590205e8f746304f3d06d3e328a05bf2bf954e 100644 (file)
@@ -192,7 +192,7 @@ static int builtin_diff_combined(struct rev_info *revs,
        parent = xmalloc(ents * sizeof(*parent));
        /* Again, the revs are all reverse */
        for (i = 0; i < ents; i++)
-               memcpy(parent + i, ent[ents - 1 - i].item->sha1, 20);
+               hashcpy((unsigned char*)parent + i, ent[ents - 1 - i].item->sha1);
        diff_tree_combined(parent[0], parent + 1, ents - 1,
                           revs->dense_combined_merges, revs);
        return 0;
@@ -290,7 +290,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
                if (obj->type == OBJ_BLOB) {
                        if (2 <= blobs)
                                die("more than two blobs given: '%s'", name);
-                       memcpy(blob[blobs].sha1, obj->sha1, 20);
+                       hashcpy(blob[blobs].sha1, obj->sha1);
                        blob[blobs].name = name;
                        blobs++;
                        continue;
index f19f0d60460a721dafcd232d4896231f765a979f..46f524dfc32a5eaea06df6e3502c83710a1c09bb 100644 (file)
@@ -534,7 +534,7 @@ static int add_object_entry(const unsigned char *sha1, unsigned hash, int exclud
        entry = objects + idx;
        nr_objects = idx + 1;
        memset(entry, 0, sizeof(*entry));
-       memcpy(entry->sha1, sha1, 20);
+       hashcpy(entry->sha1, sha1);
        entry->hash = hash;
 
        if (object_ix_hashsz * 3 <= nr_objects * 4)
@@ -649,7 +649,7 @@ static struct pbase_tree_cache *pbase_tree_get(const unsigned char *sha1)
                free(ent->tree_data);
                nent = ent;
        }
-       memcpy(nent->sha1, sha1, 20);
+       hashcpy(nent->sha1, sha1);
        nent->tree_data = data;
        nent->tree_size = size;
        nent->ref = 1;
@@ -799,7 +799,7 @@ static void add_preferred_base(unsigned char *sha1)
        it->next = pbase_tree;
        pbase_tree = it;
 
-       memcpy(it->pcache.sha1, tree_sha1, 20);
+       hashcpy(it->pcache.sha1, tree_sha1);
        it->pcache.tree_data = data;
        it->pcache.tree_size = size;
 }
index 53087faf7a63e6268ffff5239142a00c120dcf8f..c1867d2a0052ad797481f3d5f9aa544952ff251b 100644 (file)
@@ -53,7 +53,7 @@ static void prime_cache_tree_rec(struct cache_tree *it, struct tree *tree)
        struct name_entry entry;
        int cnt;
 
-       memcpy(it->sha1, tree->object.sha1, 20);
+       hashcpy(it->sha1, tree->object.sha1);
        desc.buf = tree->buffer;
        desc.size = tree->size;
        cnt = 0;
index f0ae5c987af79bc5254df7cd3587ed1852e63209..ca0ebc258563f2ea2aec94eed2de31799f3f16cc 100644 (file)
@@ -95,7 +95,7 @@ static void add_delta_to_list(unsigned char *base_sha1, void *delta, unsigned lo
 {
        struct delta_info *info = xmalloc(sizeof(*info));
 
-       memcpy(info->base_sha1, base_sha1, 20);
+       hashcpy(info->base_sha1, base_sha1);
        info->size = size;
        info->delta = delta;
        info->next = delta_list;
@@ -173,7 +173,7 @@ static int unpack_delta_entry(unsigned long delta_size)
        unsigned char base_sha1[20];
        int result;
 
-       memcpy(base_sha1, fill(20), 20);
+       hashcpy(base_sha1, fill(20));
        use(20);
 
        delta_data = get_data(delta_size);
index 5dd91af180df0f832ecc747050ad5306efe9c8b6..867512647195073860f017340ac1ebd0c27fce67 100644 (file)
@@ -142,7 +142,7 @@ static int add_cacheinfo(unsigned int mode, const unsigned char *sha1,
        size = cache_entry_size(len);
        ce = xcalloc(1, size);
 
-       memcpy(ce->sha1, sha1, 20);
+       hashcpy(ce->sha1, sha1);
        memcpy(ce->name, path, len);
        ce->ce_flags = create_ce_flags(len, stage);
        ce->ce_mode = create_ce_mode(mode);
@@ -333,7 +333,7 @@ static struct cache_entry *read_one_ent(const char *which,
        size = cache_entry_size(namelen);
        ce = xcalloc(1, size);
 
-       memcpy(ce->sha1, sha1, 20);
+       hashcpy(ce->sha1, sha1);
        memcpy(ce->name, path, namelen);
        ce->ce_flags = create_ce_flags(namelen, stage);
        ce->ce_mode = create_ce_mode(mode);
index ca06149f186449407c6536fcc3caa37cd4101ce3..50670dc7bf46c74e95b2e204d05afc077350a19f 100644 (file)
@@ -50,10 +50,10 @@ int write_tree(unsigned char *sha1, int missing_ok, const char *prefix)
        if (prefix) {
                struct cache_tree *subtree =
                        cache_tree_find(active_cache_tree, prefix);
-               memcpy(sha1, subtree->sha1, 20);
+               hashcpy(sha1, subtree->sha1);
        }
        else
-               memcpy(sha1, active_cache_tree->sha1, 20);
+               hashcpy(sha1, active_cache_tree->sha1);
 
        rollback_lock_file(lock_file);
 
index d9f7e1e3dd598d34e08d6370544b562daf4640d2..323c68a6709f30312e0dfb0fd60fcd7e69cd710b 100644 (file)
@@ -335,7 +335,7 @@ static int update_one(struct cache_tree *it,
                offset += sprintf(buffer + offset,
                                  "%o %.*s", mode, entlen, path + baselen);
                buffer[offset++] = 0;
-               memcpy(buffer + offset, sha1, 20);
+               hashcpy((unsigned char*)buffer + offset, sha1);
                offset += 20;
 
 #if DEBUG
@@ -412,7 +412,7 @@ static void *write_one(struct cache_tree *it,
 #endif
 
        if (0 <= it->entry_count) {
-               memcpy(buffer + *offset, it->sha1, 20);
+               hashcpy((unsigned char*)buffer + *offset, it->sha1);
                *offset += 20;
        }
        for (i = 0; i < it->subtree_nr; i++) {
@@ -478,7 +478,7 @@ static struct cache_tree *read_one(const char **buffer, unsigned long *size_p)
        if (0 <= it->entry_count) {
                if (size < 20)
                        goto free_return;
-               memcpy(it->sha1, buf, 20);
+               hashcpy(it->sha1, (unsigned char*)buf);
                buf += 20;
                size -= 20;
        }
diff --git a/cache.h b/cache.h
index 08d6a91279c87ad1e4d7ce1be1ac927b52a6113e..cc3f00c2b8dd868bf9069140b8ed081f1c3e5220 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -218,6 +218,10 @@ static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
 {
        return memcmp(sha1, sha2, 20);
 }
+static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src)
+{
+       memcpy(sha_dst, sha_src, 20);
+}
 
 int git_mkstemp(char *path, size_t n, const char *template);
 
index 0682acd50d618e4ba8319372c46c72b3e479b8e6..46d9121baf2ebb024f6b19993a9b75fa3b67951a 100644 (file)
@@ -31,9 +31,9 @@ static struct combine_diff_path *intersect_paths(struct combine_diff_path *curr,
                        memset(p->parent, 0,
                               sizeof(p->parent[0]) * num_parent);
 
-                       memcpy(p->sha1, q->queue[i]->two->sha1, 20);
+                       hashcpy(p->sha1, q->queue[i]->two->sha1);
                        p->mode = q->queue[i]->two->mode;
-                       memcpy(p->parent[n].sha1, q->queue[i]->one->sha1, 20);
+                       hashcpy(p->parent[n].sha1, q->queue[i]->one->sha1);
                        p->parent[n].mode = q->queue[i]->one->mode;
                        p->parent[n].status = q->queue[i]->status;
                        *tail = p;
@@ -56,8 +56,7 @@ static struct combine_diff_path *intersect_paths(struct combine_diff_path *curr,
                        len = strlen(path);
                        if (len == p->len && !memcmp(path, p->path, len)) {
                                found = 1;
-                               memcpy(p->parent[n].sha1,
-                                      q->queue[i]->one->sha1, 20);
+                               hashcpy(p->parent[n].sha1, q->queue[i]->one->sha1);
                                p->parent[n].mode = q->queue[i]->one->mode;
                                p->parent[n].status = q->queue[i]->status;
                                break;
@@ -927,6 +926,7 @@ void diff_tree_combined_merge(const unsigned char *sha1,
        for (parents = commit->parents, num_parent = 0;
             parents;
             parents = parents->next, num_parent++)
-               memcpy(parent + num_parent, parents->item->object.sha1, 20);
+               hashcpy((unsigned char*)(parent + num_parent),
+                       parents->item->object.sha1);
        diff_tree_combined(sha1, parent, num_parent, dense, rev);
 }
index 7a6a73f2a333d067c5a5442004f76ebbb9aaed17..e501ccce259e7ac1a4e92fecc713950e82d3b71a 100644 (file)
--- a/connect.c
+++ b/connect.c
@@ -77,7 +77,7 @@ struct ref **get_remote_heads(int in, struct ref **list,
                if (nr_match && !path_match(name, nr_match, match))
                        continue;
                ref = xcalloc(1, sizeof(*ref) + len - 40);
-               memcpy(ref->old_sha1, old_sha1, 20);
+               hashcpy(ref->old_sha1, old_sha1);
                memcpy(ref->name, buffer + 41, len - 40);
                *list = ref;
                list = &ref->next;
@@ -208,7 +208,7 @@ static struct ref *try_explicit_object_name(const char *name)
        len = strlen(name) + 1;
        ref = xcalloc(1, sizeof(*ref) + len);
        memcpy(ref->name, name, len);
-       memcpy(ref->new_sha1, sha1, 20);
+       hashcpy(ref->new_sha1, sha1);
        return ref;
 }
 
@@ -318,7 +318,7 @@ int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail,
                        int len = strlen(src->name) + 1;
                        dst_peer = xcalloc(1, sizeof(*dst_peer) + len);
                        memcpy(dst_peer->name, src->name, len);
-                       memcpy(dst_peer->new_sha1, src->new_sha1, 20);
+                       hashcpy(dst_peer->new_sha1, src->new_sha1);
                        link_dst_tail(dst_peer, dst_tail);
                }
                dst_peer->peer_ref = src;
index 4e7ff7517f40f5dd5c23cd3fd6a42d3cb621aec1..631678b08a7cb83b0349f1a683d3cd7fb797fb7a 100644 (file)
@@ -23,7 +23,7 @@ static struct entry * convert_entry(unsigned char *sha1);
 static struct entry *insert_new(unsigned char *sha1, int pos)
 {
        struct entry *new = xcalloc(1, sizeof(struct entry));
-       memcpy(new->old_sha1, sha1, 20);
+       hashcpy(new->old_sha1, sha1);
        memmove(convert + pos + 1, convert + pos, (nr_convert - pos) * sizeof(struct entry *));
        convert[pos] = new;
        nr_convert++;
@@ -54,7 +54,7 @@ static struct entry *lookup_entry(unsigned char *sha1)
 static void convert_binary_sha1(void *buffer)
 {
        struct entry *entry = convert_entry(buffer);
-       memcpy(buffer, entry->new_sha1, 20);
+       hashcpy(buffer, entry->new_sha1);
 }
 
 static void convert_ascii_sha1(void *buffer)
@@ -104,7 +104,7 @@ static int write_subdirectory(void *buffer, unsigned long size, const char *base
                if (!slash) {
                        newlen += sprintf(new + newlen, "%o %s", mode, path);
                        new[newlen++] = '\0';
-                       memcpy(new + newlen, (char *) buffer + len - 20, 20);
+                       hashcpy((unsigned char*)new + newlen, (unsigned char *) buffer + len - 20);
                        newlen += 20;
 
                        used += len;
index e2278897d08b750f383ae5bb2ac7e738a99a7ae5..b7174c6c056c5a8f2a800ecbcb3cdf304c0bfc3f 100644 (file)
@@ -38,7 +38,7 @@ int sha1close(struct sha1file *f, unsigned char *result, int update)
        }
        SHA1_Final(f->buffer, &f->ctx);
        if (result)
-               memcpy(result, f->buffer, 20);
+               hashcpy(result, f->buffer);
        if (update)
                sha1flush(f, 20);
        if (close(f->fd))
index 3e4b3b96b71925974eee5f1f691158c314722011..2fc41263aee87547cd755c96bb6f7c345d4b2550 100644 (file)
@@ -66,8 +66,7 @@ int run_diff_files(struct rev_info *revs, int silent_on_removed)
                                if (2 <= stage) {
                                        int mode = ntohl(nce->ce_mode);
                                        num_compare_stages++;
-                                       memcpy(dpath->parent[stage-2].sha1,
-                                              nce->sha1, 20);
+                                       hashcpy(dpath->parent[stage-2].sha1, nce->sha1);
                                        dpath->parent[stage-2].mode =
                                                canon_mode(mode);
                                        dpath->parent[stage-2].status =
diff --git a/diff.c b/diff.c
index da7cca1952e7e245730bd81419e1b23ce57ef173..ca171e8e69680f8f873529729b129858a8201e08 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -1101,7 +1101,7 @@ void fill_filespec(struct diff_filespec *spec, const unsigned char *sha1,
 {
        if (mode) {
                spec->mode = canon_mode(mode);
-               memcpy(spec->sha1, sha1, 20);
+               hashcpy(spec->sha1, sha1);
                spec->sha1_valid = !is_null_sha1(sha1);
        }
 }
@@ -1194,7 +1194,7 @@ static struct sha1_size_cache *locate_size_cache(unsigned char *sha1,
                        sizeof(*sha1_size_cache));
        e = xmalloc(sizeof(struct sha1_size_cache));
        sha1_size_cache[first] = e;
-       memcpy(e->sha1, sha1, 20);
+       hashcpy(e->sha1, sha1);
        e->size = size;
        return e;
 }
@@ -1516,7 +1516,7 @@ static void diff_fill_sha1_info(struct diff_filespec *one)
                }
        }
        else
-               memset(one->sha1, 0, 20);
+               hashclr(one->sha1);
 }
 
 static void run_diff(struct diff_filepair *p, struct diff_options *o)
index e18c1489a1ab8620cade351ec502828b10a41ac4..377feded1ccafdece86499d1917d297145fd28ac 100644 (file)
@@ -404,7 +404,7 @@ static int everything_local(struct ref **refs, int nr_match, char **match)
                        continue;
                }
 
-               memcpy(ref->new_sha1, local, 20);
+               hashcpy(ref->new_sha1, local);
                if (!verbose)
                        continue;
                fprintf(stderr,
diff --git a/fetch.c b/fetch.c
index aeb6bf2639cc75b6f738348bcc267179a8a0da65..ef60b045eaa0a55ba65499187a3aac082ffb6af2 100644 (file)
--- a/fetch.c
+++ b/fetch.c
@@ -84,7 +84,7 @@ static int process_commit(struct commit *commit)
        if (commit->object.flags & COMPLETE)
                return 0;
 
-       memcpy(current_commit_sha1, commit->object.sha1, 20);
+       hashcpy(current_commit_sha1, commit->object.sha1);
 
        pull_say("walk %s\n", sha1_to_hex(commit->object.sha1));
 
index 31e00d84b30f95c713b3dc6a654b4ef8459c6729..ae0ec8d039cfce698daa8a9f44c7f49b932373c8 100644 (file)
@@ -356,7 +356,7 @@ static void add_sha1_list(unsigned char *sha1, unsigned long ino)
        int nr;
 
        entry->ino = ino;
-       memcpy(entry->sha1, sha1, 20);
+       hashcpy(entry->sha1, sha1);
        nr = sha1_list.nr;
        if (nr == MAX_SHA1_ENTRIES) {
                fsck_sha1_list();
index d1f74b443be23e8cd7f10128713217acfab5254b..7619b338feb92a431268fc5a3963415af1b53e99 100644 (file)
@@ -393,7 +393,7 @@ void prefetch(unsigned char *sha1)
        char *filename = sha1_file_name(sha1);
 
        newreq = xmalloc(sizeof(*newreq));
-       memcpy(newreq->sha1, sha1, 20);
+       hashcpy(newreq->sha1, sha1);
        newreq->repo = alt;
        newreq->url = NULL;
        newreq->local = -1;
index 48497797f1650a2ed3f24010a85123993b14d8aa..ebfcc73a9ef7abb20f149ca433c9bd67649854d3 100644 (file)
@@ -1874,7 +1874,7 @@ static int one_local_ref(const char *refname, const unsigned char *sha1)
        struct ref *ref;
        int len = strlen(refname) + 1;
        ref = xcalloc(1, sizeof(*ref) + len);
-       memcpy(ref->new_sha1, sha1, 20);
+       hashcpy(ref->new_sha1, sha1);
        memcpy(ref->name, refname, len);
        *local_tail = ref;
        local_tail = &ref->next;
@@ -1909,7 +1909,7 @@ static void one_remote_ref(char *refname)
        }
 
        ref = xcalloc(1, sizeof(*ref) + len);
-       memcpy(ref->old_sha1, remote_sha1, 20);
+       hashcpy(ref->old_sha1, remote_sha1);
        memcpy(ref->name, refname, len);
        *remote_tail = ref;
        remote_tail = &ref->next;
@@ -2445,7 +2445,7 @@ int main(int argc, char **argv)
                                continue;
                        }
                }
-               memcpy(ref->new_sha1, ref->peer_ref->new_sha1, 20);
+               hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
                if (is_zero_sha1(ref->new_sha1)) {
                        error("cannot happen anymore");
                        rc = -3;
index 96ea6874634959c18263779a01f8385ee9ffde1e..80bc6cb45b1a91c31dbdf18b48399b7a7a6b2737 100644 (file)
@@ -161,7 +161,7 @@ static void *unpack_raw_entry(unsigned long offset,
        case OBJ_DELTA:
                if (pos + 20 >= pack_limit)
                        bad_object(offset, "object extends past end of pack");
-               memcpy(delta_base, pack_base + pos, 20);
+               hashcpy(delta_base, pack_base + pos);
                pos += 20;
                /* fallthru */
        case OBJ_COMMIT:
@@ -304,7 +304,7 @@ static void parse_pack_objects(void)
                if (obj->type == OBJ_DELTA) {
                        struct delta_entry *delta = &deltas[nr_deltas++];
                        delta->obj = obj;
-                       memcpy(delta->base_sha1, base_sha1, 20);
+                       hashcpy(delta->base_sha1, base_sha1);
                } else
                        sha1_object(data, data_size, obj->type, obj->sha1);
                free(data);
index 93241385e4aee76fc42db5849365740c474b9bdd..56205d1e0053cdcb7236bde199817a5529d3f433 100644 (file)
--- a/mktree.c
+++ b/mktree.c
@@ -30,7 +30,7 @@ static void append_to_tree(unsigned mode, unsigned char *sha1, char *path)
        ent = entries[used++] = xmalloc(sizeof(**entries) + len + 1);
        ent->mode = mode;
        ent->len = len;
-       memcpy(ent->sha1, sha1, 20);
+       hashcpy(ent->sha1, sha1);
        memcpy(ent->name, path, len+1);
 }
 
@@ -64,7 +64,7 @@ static void write_tree(unsigned char *sha1)
                offset += sprintf(buffer + offset, "%o ", ent->mode);
                offset += sprintf(buffer + offset, "%s", ent->name);
                buffer[offset++] = 0;
-               memcpy(buffer + offset, ent->sha1, 20);
+               hashcpy((unsigned char*)buffer + offset, ent->sha1);
                offset += 20;
        }
        write_sha1_file(buffer, offset, tree_type, sha1);
index fdcfff7c86057bf8e5a7285518f186c67a1715bb..60bf16b902033d9f256282201ca7aeca74855d7e 100644 (file)
--- a/object.c
+++ b/object.c
@@ -91,7 +91,7 @@ void created_object(const unsigned char *sha1, struct object *obj)
        obj->used = 0;
        obj->type = OBJ_NONE;
        obj->flags = 0;
-       memcpy(obj->sha1, sha1, 20);
+       hashcpy(obj->sha1, sha1);
 
        if (obj_hash_size - 1 <= nr_objs * 2)
                grow_object_hash();
index 3b4c80f764bd11a740a7cce60f2e8c062706e897..086d2d9c68835c6a7434932f6e3b430e0906578d 100644 (file)
@@ -47,7 +47,7 @@ static void generate_id_list(void)
 
                if (!get_sha1_hex(p, n)) {
                        flush_current_id(patchlen, sha1, &ctx);
-                       memcpy(sha1, n, 20);
+                       hashcpy(sha1, n);
                        patchlen = 0;
                        continue;
                }
index 81e91909b8ac88423c550a6489285b003378c5f0..201531626c2a60dffd1720ab4d00d7023bcbc78e 100644 (file)
@@ -247,8 +247,8 @@ static void read_head_info(void)
                                report_status = 1;
                }
                cmd = xmalloc(sizeof(struct command) + len - 80);
-               memcpy(cmd->old_sha1, old_sha1, 20);
-               memcpy(cmd->new_sha1, new_sha1, 20);
+               hashcpy(cmd->old_sha1, old_sha1);
+               hashcpy(cmd->new_sha1, new_sha1);
                memcpy(cmd->ref_name, line + 82, len - 81);
                cmd->error_string = "n/a (unpacker error)";
                cmd->next = NULL;
diff --git a/refs.c b/refs.c
index 17cd0cef3c9819d70083554f99d8f09391171db1..e70ef0ae0fe58671a35b71a55fbf81425ee84581 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -29,7 +29,7 @@ const char *resolve_ref(const char *path, unsigned char *sha1, int reading)
                if (lstat(path, &st) < 0) {
                        if (reading || errno != ENOENT)
                                return NULL;
-                       memset(sha1, 0, 20);
+                       hashclr(sha1);
                        return path;
                }
 
index 5a91d06b980d710e30a80c353a636ca1ca6b9a55..1d89d72738ff917d29373d50c2c2cc9bbd10b2c0 100644 (file)
@@ -496,7 +496,7 @@ static int add_parents_only(struct rev_info *revs, const char *arg, int flags)
                it = get_reference(revs, arg, sha1, 0);
                if (it->type != OBJ_TAG)
                        break;
-               memcpy(sha1, ((struct tag*)it)->tagged->sha1, 20);
+               hashcpy(sha1, ((struct tag*)it)->tagged->sha1);
        }
        if (it->type != OBJ_COMMIT)
                return 0;
index f7c0cfc6f67ba4d325ac6fc9f6c74fad78d1208e..fd79a61923ddc20af216ccd252e40bf38a70eccb 100644 (file)
@@ -185,7 +185,7 @@ static int one_local_ref(const char *refname, const unsigned char *sha1)
        struct ref *ref;
        int len = strlen(refname) + 1;
        ref = xcalloc(1, sizeof(*ref) + len);
-       memcpy(ref->new_sha1, sha1, 20);
+       hashcpy(ref->new_sha1, sha1);
        memcpy(ref->name, refname, len);
        *local_tail = ref;
        local_tail = &ref->next;
@@ -310,7 +310,7 @@ static int send_pack(int in, int out, int nr_refspec, char **refspec)
                                continue;
                        }
                }
-               memcpy(ref->new_sha1, ref->peer_ref->new_sha1, 20);
+               hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
                if (is_zero_sha1(ref->new_sha1)) {
                        error("cannot happen anymore");
                        ret = -3;
index 066cff1fa6e8dd1485876984becdecd7bb4987b6..769a80984d25ca362acb8d7c4f97ac3526c2b753 100644 (file)
@@ -540,7 +540,7 @@ struct packed_git *add_packed_git(char *path, int path_len, int local)
        p->pack_use_cnt = 0;
        p->pack_local = local;
        if ((path_len > 44) && !get_sha1_hex(path + path_len - 44, sha1))
-               memcpy(p->sha1, sha1, 20);
+               hashcpy(p->sha1, sha1);
        return p;
 }
 
@@ -571,7 +571,7 @@ struct packed_git *parse_pack_index_file(const unsigned char *sha1, char *idx_pa
        p->pack_base = NULL;
        p->pack_last_used = 0;
        p->pack_use_cnt = 0;
-       memcpy(p->sha1, sha1, 20);
+       hashcpy(p->sha1, sha1);
        return p;
 }
 
@@ -953,7 +953,7 @@ int check_reuse_pack_delta(struct packed_git *p, unsigned long offset,
        ptr = unpack_object_header(p, ptr, kindp, sizep);
        if (*kindp != OBJ_DELTA)
                goto done;
-       memcpy(base, (unsigned char *) p->pack_base + ptr, 20);
+       hashcpy(base, (unsigned char *) p->pack_base + ptr);
        status = 0;
  done:
        unuse_packed_git(p);
@@ -981,7 +981,7 @@ void packed_object_info_detail(struct pack_entry *e,
                if (p->pack_size <= offset + 20)
                        die("pack file %s records an incomplete delta base",
                            p->pack_name);
-               memcpy(base_sha1, pack, 20);
+               hashcpy(base_sha1, pack);
                do {
                        struct pack_entry base_ent;
                        unsigned long junk;
@@ -1201,7 +1201,7 @@ int nth_packed_object_sha1(const struct packed_git *p, int n,
        void *index = p->index_base + 256;
        if (n < 0 || num_packed_objects(p) <= n)
                return -1;
-       memcpy(sha1, (char *) index + (24 * n) + 4, 20);
+       hashcpy(sha1, (unsigned char *) index + (24 * n) + 4);
        return 0;
 }
 
@@ -1218,7 +1218,7 @@ int find_pack_entry_one(const unsigned char *sha1,
                int cmp = hashcmp((unsigned char *)index + (24 * mi) + 4, sha1);
                if (!cmp) {
                        e->offset = ntohl(*((unsigned int *) ((char *) index + (24 * mi))));
-                       memcpy(e->sha1, sha1, 20);
+                       hashcpy(e->sha1, sha1);
                        e->p = p;
                        return 1;
                }
@@ -1331,7 +1331,7 @@ void *read_object_with_reference(const unsigned char *sha1,
        unsigned long isize;
        unsigned char actual_sha1[20];
 
-       memcpy(actual_sha1, sha1, 20);
+       hashcpy(actual_sha1, sha1);
        while (1) {
                int ref_length = -1;
                const char *ref_type = NULL;
@@ -1342,7 +1342,7 @@ void *read_object_with_reference(const unsigned char *sha1,
                if (!strcmp(type, required_type)) {
                        *size = isize;
                        if (actual_sha1_return)
-                               memcpy(actual_sha1_return, actual_sha1, 20);
+                               hashcpy(actual_sha1_return, actual_sha1);
                        return buffer;
                }
                /* Handle references */
@@ -1537,7 +1537,7 @@ int write_sha1_file(void *buf, unsigned long len, const char *type, unsigned cha
         */
        filename = write_sha1_file_prepare(buf, len, type, sha1, hdr, &hdrlen);
        if (returnsha1)
-               memcpy(returnsha1, sha1, 20);
+               hashcpy(returnsha1, sha1);
        if (has_sha1_file(sha1))
                return 0;
        fd = open(filename, O_RDONLY);
index e9eb6ce882ea92523c9a871c7581457af2dc78c5..89b9e3b77af068b93e720dc03e71ad189fefb116 100644 (file)
@@ -103,7 +103,7 @@ static int find_short_packed_object(int len, const unsigned char *match, unsigne
                                    !match_sha(len, match, next)) {
                                        /* unique within this pack */
                                        if (!found) {
-                                               memcpy(found_sha1, now, 20);
+                                               hashcpy(found_sha1, now);
                                                found++;
                                        }
                                        else if (hashcmp(found_sha1, now)) {
@@ -120,7 +120,7 @@ static int find_short_packed_object(int len, const unsigned char *match, unsigne
                }
        }
        if (found == 1)
-               memcpy(sha1, found_sha1, 20);
+               hashcpy(sha1, found_sha1);
        return found;
 }
 
@@ -140,13 +140,13 @@ static int find_unique_short_object(int len, char *canonical,
        if (1 < has_unpacked || 1 < has_packed)
                return SHORT_NAME_AMBIGUOUS;
        if (has_unpacked != has_packed) {
-               memcpy(sha1, (has_packed ? packed_sha1 : unpacked_sha1), 20);
+               hashcpy(sha1, (has_packed ? packed_sha1 : unpacked_sha1));
                return 0;
        }
        /* Both have unique ones -- do they match? */
        if (hashcmp(packed_sha1, unpacked_sha1))
                return SHORT_NAME_AMBIGUOUS;
-       memcpy(sha1, packed_sha1, 20);
+       hashcpy(sha1, packed_sha1);
        return 0;
 }
 
@@ -320,13 +320,13 @@ static int get_parent(const char *name, int len,
        if (parse_commit(commit))
                return -1;
        if (!idx) {
-               memcpy(result, commit->object.sha1, 20);
+               hashcpy(result, commit->object.sha1);
                return 0;
        }
        p = commit->parents;
        while (p) {
                if (!--idx) {
-                       memcpy(result, p->item->object.sha1, 20);
+                       hashcpy(result, p->item->object.sha1);
                        return 0;
                }
                p = p->next;
@@ -347,9 +347,9 @@ static int get_nth_ancestor(const char *name, int len,
 
                if (!commit || parse_commit(commit) || !commit->parents)
                        return -1;
-               memcpy(sha1, commit->parents->item->object.sha1, 20);
+               hashcpy(sha1, commit->parents->item->object.sha1);
        }
-       memcpy(result, sha1, 20);
+       hashcpy(result, sha1);
        return 0;
 }
 
@@ -401,7 +401,7 @@ static int peel_onion(const char *name, int len, unsigned char *sha1)
                o = deref_tag(o, name, sp - name - 2);
                if (!o || (!o->parsed && !parse_object(o->sha1)))
                        return -1;
-               memcpy(sha1, o->sha1, 20);
+               hashcpy(sha1, o->sha1);
        }
        else {
                /* At this point, the syntax look correct, so
@@ -413,7 +413,7 @@ static int peel_onion(const char *name, int len, unsigned char *sha1)
                        if (!o || (!o->parsed && !parse_object(o->sha1)))
                                return -1;
                        if (o->type == expected_type) {
-                               memcpy(sha1, o->sha1, 20);
+                               hashcpy(sha1, o->sha1);
                                return 0;
                        }
                        if (o->type == OBJ_TAG)
@@ -520,7 +520,7 @@ int get_sha1(const char *name, unsigned char *sha1)
                            memcmp(ce->name, cp, namelen))
                                break;
                        if (ce_stage(ce) == stage) {
-                               memcpy(sha1, ce->sha1, 20);
+                               hashcpy(sha1, ce->sha1);
                                return 0;
                        }
                        pos++;
index 3f83e98f3a443e4537f53abf32bcca1389c5d9d8..14cc5aea6c4eefbf4b0fa9c72ccb70ec550b44b4 100644 (file)
@@ -179,7 +179,7 @@ static int find_tree_entry(struct tree_desc *t, const char *name, unsigned char
                if (cmp < 0)
                        break;
                if (entrylen == namelen) {
-                       memcpy(result, sha1, 20);
+                       hashcpy(result, sha1);
                        return 0;
                }
                if (name[entrylen] != '/')
@@ -187,7 +187,7 @@ static int find_tree_entry(struct tree_desc *t, const char *name, unsigned char
                if (!S_ISDIR(*mode))
                        break;
                if (++entrylen == namelen) {
-                       memcpy(result, sha1, 20);
+                       hashcpy(result, sha1);
                        return 0;
                }
                return get_tree_entry(sha1, name + entrylen, result, mode);
diff --git a/tree.c b/tree.c
index ef456be9dd0faee46435a3c3b126a36c2be58051..ea386e506659c65224cfe55bdc4f8d086171637a 100644 (file)
--- a/tree.c
+++ b/tree.c
@@ -25,7 +25,7 @@ static int read_one_entry(const unsigned char *sha1, const char *base, int basel
        ce->ce_flags = create_ce_flags(baselen + len, stage);
        memcpy(ce->name, base, baselen);
        memcpy(ce->name + baselen, pathname, len+1);
-       memcpy(ce->sha1, sha1, 20);
+       hashcpy(ce->sha1, sha1);
        return add_cache_entry(ce, ADD_CACHE_OK_TO_ADD|ADD_CACHE_SKIP_DFCHECK);
 }
 
index 467d9940f5a2e9cd8a880e4c8f0f1d2a8a5f7aa1..3ac0289b3a3309fca9ade4e271dbd8b0d2f148ea 100644 (file)
@@ -200,7 +200,7 @@ static int unpack_trees_rec(struct tree_entry_list **posns, int len,
 
                        any_files = 1;
 
-                       memcpy(ce->sha1, posns[i]->sha1, 20);
+                       hashcpy(ce->sha1, posns[i]->sha1);
                        src[i + o->merge] = ce;
                        subposns[i] = df_conflict_list;
                        posns[i] = posns[i]->next;
index fcf279843ad23b0605f3c2bc558e8d04a903554b..51ce936b060d34a2f759dba4f7aeeecf47a59a4b 100644 (file)
@@ -374,7 +374,7 @@ static int get_common_commits(void)
                                             sha1_to_hex(sha1),
                                             multi_ack ?  " continue" : "");
                                if (multi_ack)
-                                       memcpy(last_sha1, sha1, 20);
+                                       hashcpy(last_sha1, sha1);
                        }
                        continue;
                }