Replace xmalloc+memset(0) with xcalloc.

Signed-off-by: Peter Eriksen <s022018@student.dtu.dk>
Signed-off-by: Junio C Hamano <junkio@cox.net>

apply.c

@@ -925,8 +925,7 @@ static int parse_single_patch(char *line, unsigned long size, struct patch *patc
 		struct fragment *fragment;
 		int len;
 
-		fragment = xmalloc(sizeof(*fragment));
-		memset(fragment, 0, sizeof(*fragment));
+		fragment = xcalloc(1, sizeof(*fragment));
 		len = parse_fragment(line, size, patch, fragment);
 		if (len <= 0)
 			die("corrupt patch at line %d", linenr);
@@ -1652,8 +1651,7 @@ static void add_index_file(const char *path, unsigned mode, void *buf, unsigned
 	if (!write_index)
 		return;
 
-	ce = xmalloc(ce_size);
-	memset(ce, 0, ce_size);
+	ce = xcalloc(1, ce_size);
 	memcpy(ce->name, path, namelen);
 	ce->ce_mode = create_ce_mode(mode);
 	ce->ce_flags = htons(namelen);
@@ -1809,8 +1807,7 @@ static int apply_patch(int fd, const char *filename)
 		struct patch *patch;
 		int nr;
 
-		patch = xmalloc(sizeof(*patch));
-		memset(patch, 0, sizeof(*patch));
+		patch = xcalloc(1, sizeof(*patch));
 		nr = parse_chunk(buffer + offset, size, patch);
 		if (nr < 0)
 			break;

blob.c

@@ -8,8 +8,7 @@ struct blob *lookup_blob(const unsigned char *sha1)
 {
 	struct object *obj = lookup_object(sha1);
 	if (!obj) {
-		struct blob *ret = xmalloc(sizeof(struct blob));
-		memset(ret, 0, sizeof(struct blob));
+		struct blob *ret = xcalloc(1, sizeof(struct blob));
 		created_object(sha1, &ret->object);
 		ret->object.type = blob_type;
 		return ret;

commit.c

@@ -73,8 +73,7 @@ struct commit *lookup_commit(const unsigned char *sha1)
 {
 	struct object *obj = lookup_object(sha1);
 	if (!obj) {
-		struct commit *ret = xmalloc(sizeof(struct commit));
-		memset(ret, 0, sizeof(struct commit));
+		struct commit *ret = xcalloc(1, sizeof(struct commit));
 		created_object(sha1, &ret->object);
 		ret->object.type = commit_type;
 		return ret;

convert-objects.c

@@ -21,8 +21,7 @@ static struct entry * convert_entry(unsigned char *sha1);
 
 static struct entry *insert_new(unsigned char *sha1, int pos)
 {
-	struct entry *new = xmalloc(sizeof(struct entry));
-	memset(new, 0, sizeof(*new));
+	struct entry *new = xcalloc(1, sizeof(struct entry));
 	memcpy(new->old_sha1, sha1, 20);
 	memmove(convert + pos + 1, convert + pos, (nr_convert - pos) * sizeof(struct entry *));
 	convert[pos] = new;

http-push.c

@@ -1008,8 +1008,7 @@ static int fetch_indices(void)
 	struct active_request_slot *slot;
 	struct slot_results results;
 
-	data = xmalloc(4096);
-	memset(data, 0, 4096);
+	data = xcalloc(1, 4096);
 	buffer.size = 4096;
 	buffer.posn = 0;
 	buffer.buffer = data;
@@ -2042,8 +2041,7 @@ static void update_remote_info_refs(struct remote_lock *lock)
 	char *if_header;
 	struct curl_slist *dav_headers = NULL;
 
-	buffer.buffer = xmalloc(4096);
-	memset(buffer.buffer, 0, 4096);
+	buffer.buffer = xcalloc(1, 4096);
 	buffer.size = 4096;
 	buffer.posn = 0;
 	remote_ls("refs/", (PROCESS_FILES | RECURSIVE),

object.c

@@ -85,8 +85,7 @@ struct object_refs *alloc_object_refs(unsigned count)
 	struct object_refs *refs;
 	size_t size = sizeof(*refs) + count*sizeof(struct object *);
 
-	refs = xmalloc(size);
-	memset(refs, 0, size);
+	refs = xcalloc(1, size);
 	refs->count = count;
 	return refs;
 }
@@ -178,8 +177,7 @@ struct object *lookup_unknown_object(const unsigned char *sha1)
 {
 	struct object *obj = lookup_object(sha1);
 	if (!obj) {
-		union any_object *ret = xmalloc(sizeof(*ret));
-		memset(ret, 0, sizeof(*ret));
+		union any_object *ret = xcalloc(1, sizeof(*ret));
 		created_object(sha1, &ret->object);
 		ret->object.type = NULL;
 		return &ret->object;

read-tree.c

@@ -133,11 +133,9 @@ static int unpack_trees_rec(struct tree_entry_list **posns, int len,
 		pathlen = strlen(first);
 		ce_size = cache_entry_size(baselen + pathlen);
 
-		src = xmalloc(sizeof(struct cache_entry *) * src_size);
-		memset(src, 0, sizeof(struct cache_entry *) * src_size);
+		src = xcalloc(src_size, sizeof(struct cache_entry *));
 
-		subposns = xmalloc(sizeof(struct tree_list_entry *) * len);
-		memset(subposns, 0, sizeof(struct tree_list_entry *) * len);
+		subposns = xcalloc(len, sizeof(struct tree_list_entry *));
 
 		if (cache_name && !strcmp(cache_name, first)) {
 			any_files = 1;
@@ -177,8 +175,7 @@ static int unpack_trees_rec(struct tree_entry_list **posns, int len,
 			else
 				ce_stage = 2;
 
-			ce = xmalloc(ce_size);
-			memset(ce, 0, ce_size);
+			ce = xcalloc(1, ce_size);
 			ce->ce_mode = create_ce_mode(posns[i]->mode);
 			ce->ce_flags = create_ce_flags(baselen + pathlen,
 						       ce_stage);

tag.c

@@ -19,8 +19,7 @@ struct tag *lookup_tag(const unsigned char *sha1)
 {
         struct object *obj = lookup_object(sha1);
         if (!obj) {
-                struct tag *ret = xmalloc(sizeof(struct tag));
-                memset(ret, 0, sizeof(struct tag));
+                struct tag *ret = xcalloc(1, sizeof(struct tag));
                 created_object(sha1, &ret->object);
                 ret->object.type = tag_type;
                 return ret;

tree.c

@@ -18,9 +18,7 @@ static int read_one_entry(unsigned char *sha1, const char *base, int baselen, co
 
 	len = strlen(pathname);
 	size = cache_entry_size(baselen + len);
-	ce = xmalloc(size);
-
-	memset(ce, 0, size);
+	ce = xcalloc(1, size);
 
 	ce->ce_mode = create_ce_mode(mode);
 	ce->ce_flags = create_ce_flags(baselen + len, stage);
@@ -130,8 +128,7 @@ struct tree *lookup_tree(const unsigned char *sha1)
 {
 	struct object *obj = lookup_object(sha1);
 	if (!obj) {
-		struct tree *ret = xmalloc(sizeof(struct tree));
-		memset(ret, 0, sizeof(struct tree));
+		struct tree *ret = xcalloc(1, sizeof(struct tree));
 		created_object(sha1, &ret->object);
 		ret->object.type = tree_type;
 		return ret;

update-index.c

@@ -114,8 +114,7 @@ static int add_file_to_cache(const char *path)
 
 	namelen = strlen(path);
 	size = cache_entry_size(namelen);
-	ce = xmalloc(size);
-	memset(ce, 0, size);
+	ce = xcalloc(1, size);
 	memcpy(ce->name, path, namelen);
 	ce->ce_flags = htons(namelen);
 	fill_stat_cache_info(ce, &st);
@@ -312,8 +311,7 @@ static int add_cacheinfo(unsigned int mode, const unsigned char *sha1,
 
 	len = strlen(path);
 	size = cache_entry_size(len);
-	ce = xmalloc(size);
-	memset(ce, 0, size);
+	ce = xcalloc(1, size);
 
 	memcpy(ce->sha1, sha1, 20);
 	memcpy(ce->name, path, len);