[PATCH 2/3] use alloc_ref_from_str() everywhere

["René Scharfe" <rene.scharfe@lsrfire.ath.cx>]

Replace pairs of alloc_ref() and strcpy() with alloc_ref_from_str(),
simplifying the code.

In connect.c, also a pair of alloc_ref() and memcpy() is replaced --
the additional cost of a strlen() call should not have too much of an
impact.  Consistency and simplicity are more important.

In remote.c, the code was allocating 11 bytes more than needed for
the name part, but I couldn't see them being used for anything.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
---
 connect.c   |    3 +--
 remote.c    |    3 +--
 transport.c |    6 ++----
 3 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/connect.c b/connect.c
index 67d2cd8..b69060b 100644
--- a/connect.c
+++ b/connect.c
@@ -90,9 +90,8 @@ struct ref **get_remote_heads(int in, struct ref **list,
 			continue;
 		if (nr_match && !path_match(name, nr_match, match))
 			continue;
-		ref = alloc_ref(name_len + 1);
+		ref = alloc_ref_from_str(buffer + 41);
 		hashcpy(ref->old_sha1, old_sha1);
-		memcpy(ref->name, buffer + 41, name_len + 1);
 		*list = ref;
 		list = &ref->next;
 	}
diff --git a/remote.c b/remote.c
index 98cbcf9..44d681d 100644
--- a/remote.c
+++ b/remote.c
@@ -878,8 +878,7 @@ static struct ref *try_explicit_object_name(const char *name)
 	struct ref *ref;
 
 	if (!*name) {
-		ref = alloc_ref(20);
-		strcpy(ref->name, "(delete)");
+		ref = alloc_ref_from_str("(delete)");
 		hashclr(ref->new_sha1);
 		return ref;
 	}
diff --git a/transport.c b/transport.c
index 5110c56..3d03475 100644
--- a/transport.c
+++ b/transport.c
@@ -75,15 +75,14 @@ static int read_loose_refs(struct strbuf *path, int name_offset,
 
 			if (fd < 0)
 				continue;
-			next = alloc_ref(path->len - name_offset + 1);
+			next = alloc_ref_from_str(path->buf + name_offset);
 			if (read_in_full(fd, buffer, 40) != 40 ||
 					get_sha1_hex(buffer, next->old_sha1)) {
 				close(fd);
 				free(next);
 				continue;
 			}
 			close(fd);
-			strcpy(next->name, path->buf + name_offset);
 			(*tail)->next = next;
 			*tail = next;
 		}
@@ -127,14 +126,13 @@ static void insert_packed_refs(const char *packed_refs, struct ref **list)
 				      (*list)->next->name)) > 0)
 			list = &(*list)->next;
 		if (!(*list)->next || cmp < 0) {
-			struct ref *next = alloc_ref(len - 40);
+			struct ref *next = alloc_ref_from_str(buffer + 41);
 			buffer[40] = '\0';
 			if (get_sha1_hex(buffer, next->old_sha1)) {
 				warning ("invalid SHA-1: %s", buffer);
 				free(next);
 				continue;
 			}
-			strcpy(next->name, buffer + 41);
 			next->next = (*list)->next;
 			(*list)->next = next;
 			list = &(*list)->next;
-- 
1.6.0.2.542.gde55