Print the real filename that we failed to open.

When we fail to open a temporary file to be renamed to something else,
we reported the final filename, not the temporary file we failed to
open.

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

http-push.c

@@ -433,7 +433,7 @@ static void start_fetch_packed(struct transfer_request *request)
 	packfile = fopen(request->tmpfile, "a");
 	if (!packfile) {
 		fprintf(stderr, "Unable to open local file %s for pack",
-			filename);
+			request->tmpfile);
 		remote->can_update_info_refs = 0;
 		free(url);
 		return;
@@ -941,7 +941,7 @@ static int fetch_index(unsigned char *sha1)
 	indexfile = fopen(tmpfile, "a");
 	if (!indexfile)
 		return error("Unable to open local file %s for pack index",
-			     filename);
+			     tmpfile);
 
 	slot = get_active_slot();
 	slot->results = &results;

http-walker.c

@@ -405,7 +405,7 @@ static int fetch_index(struct walker *walker, struct alt_base *repo, unsigned ch
 	indexfile = fopen(tmpfile, "a");
 	if (!indexfile)
 		return error("Unable to open local file %s for pack index",
-			     filename);
+			     tmpfile);
 
 	slot = get_active_slot();
 	slot->results = &results;
@@ -770,7 +770,7 @@ static int fetch_pack(struct walker *walker, struct alt_base *repo, unsigned cha
 	packfile = fopen(tmpfile, "a");
 	if (!packfile)
 		return error("Unable to open local file %s for pack",
-			     filename);
+			     tmpfile);
 
 	slot = get_active_slot();
 	slot->results = &results;

server-info.c

@@ -35,7 +35,7 @@ static int update_info_refs(int force)
 	safe_create_leading_directories(path0);
 	info_ref_fp = fopen(path1, "w");
 	if (!info_ref_fp)
-		return error("unable to update %s", path0);
+		return error("unable to update %s", path1);
 	for_each_ref(add_info_ref, NULL);
 	fclose(info_ref_fp);
 	adjust_shared_perm(path1);