Do not alter incoming sha1 when handling the download refs.

The code used to overwrite the const sha1 parameter just to avoid declaring
an extra variable. Fix it.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/ui-summary.c b/ui-summary.c
index 3410e1a..b99ea98 100644
--- a/ui-summary.c
+++ b/ui-summary.c
@@ -109,71 +109,74 @@ static int cgit_print_tag_cb(const char *refname, const unsigned char *sha1,
 		if (info->tagger)
 			html(info->tagger);
 		html("</td><td>");
 		cgit_print_object_ref(tag->tagged);
 		html("</td></tr>\n");
 	} else {
 		if (!header)
 			print_tag_header();
 		html("<tr><td>");
 		html_txt(buf);
 		html("</td><td colspan='2'/><td>");
 		cgit_print_object_ref(obj);
 		html("</td></tr>\n");
 	}
 	return 0;
 }
 
 static int cgit_print_archive_cb(const char *refname, const unsigned char *sha1,
 				 int flags, void *cb_data)
 {
 	struct tag *tag;
 	struct taginfo *info;
 	struct object *obj;
 	char buf[256], *url;
+	unsigned char fileid[20];
 
 	if (prefixcmp(refname, "refs/archives"))
 		return 0;
 	strncpy(buf, refname+14, sizeof(buf));
 	obj = parse_object(sha1);
 	if (!obj)
 		return 1;
 	if (obj->type == OBJ_TAG) {
 		tag = lookup_tag(sha1);
 		if (!tag || parse_tag(tag) || !(info = cgit_parse_tag(tag)))
 			return 0;
-		hashcpy(sha1, tag->tagged->sha1);
+		hashcpy(fileid, tag->tagged->sha1);
 	} else if (obj->type != OBJ_BLOB) {
 		return 0;
+	} else {
+		hashcpy(fileid, sha1);
 	}
 	if (!header) {
 		html("<table>");
 		html("<tr><th>Downloads</th></tr>");
 		header = 1;
 	}
 	html("<tr><td>");
 	url = cgit_pageurl(cgit_query_repo, "blob",
-			   fmt("id=%s&path=%s", sha1_to_hex(sha1),
+			   fmt("id=%s&path=%s", sha1_to_hex(fileid),
 			       buf));
 	html_link_open(url, NULL, NULL);
 	html_txt(buf);
 	html_link_close();
 	html("</td><tr>");
 	return 0;
 }
 
 static void cgit_print_branches()
 {
 	html("<tr class='nohover'><th class='left'>Branch</th>"
 	     "<th class='left'>Updated</th>"
 	     "<th class='left'>Author</th>"
 	     "<th class='left'>Head commit</th></tr>\n");
 	for_each_branch_ref(cgit_print_branch_cb, NULL);
 }
 
 static void cgit_print_tags()
 {
 	header = 0;
 	for_each_tag_ref(cgit_print_tag_cb, NULL);
 }
 
 static void cgit_print_archives()