From 16493eb0d0da26f80286b39c7b6900e261744afa Mon Sep 17 00:00:00 2001
From: Tay Ray Chuan <rctay89@gmail.com>
Date: Sat, 6 Jun 2009 16:43:26 +0800
Subject: [PATCH] http*: cleanup slot->local after fclose

Set slot->local to NULL after doing a fclose() on the file it points
to. This prevents the passing of a FILE* pointer to a fclose()'d file
to ftell() in http.c::run_active_slot().

This issue was raised by Clemens Buchacher on 30th May 2009:

  http://www.spinics.net/lists/git/msg104623.html

Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 http-push.c   | 6 ++++++
 http-walker.c | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/http-push.c b/http-push.c
index 5138224cc3..673a61110e 100644
--- a/http-push.c
+++ b/http-push.c
@@ -724,9 +724,11 @@ static void finish_request(struct transfer_request *request)
 	struct stat st;
 	struct packed_git *target;
 	struct packed_git **lst;
+	struct active_request_slot *slot;
 
 	request->curl_result = request->slot->curl_result;
 	request->http_code = request->slot->http_code;
+	slot = request->slot;
 	request->slot = NULL;
 
 	/* Keep locks active */
@@ -823,6 +825,7 @@ static void finish_request(struct transfer_request *request)
 
 			fclose(request->local_stream);
 			request->local_stream = NULL;
+			slot->local = NULL;
 			if (!move_temp_to_file(request->tmpfile,
 					       request->filename)) {
 				target = (struct packed_git *)request->userData;
@@ -1024,17 +1027,20 @@ static int fetch_index(unsigned char *sha1)
 		if (results.curl_result != CURLE_OK) {
 			free(url);
 			fclose(indexfile);
+			slot->local = NULL;
 			return error("Unable to get pack index %s\n%s", url,
 				     curl_errorstr);
 		}
 	} else {
 		free(url);
 		fclose(indexfile);
+		slot->local = NULL;
 		return error("Unable to start request");
 	}
 
 	free(url);
 	fclose(indexfile);
+	slot->local = NULL;
 
 	return move_temp_to_file(tmpfile, filename);
 }
diff --git a/http-walker.c b/http-walker.c
index c5a3ea3b31..ec1c97f2ee 100644
--- a/http-walker.c
+++ b/http-walker.c
@@ -418,15 +418,18 @@ static int fetch_index(struct walker *walker, struct alt_base *repo, unsigned ch
 		run_active_slot(slot);
 		if (results.curl_result != CURLE_OK) {
 			fclose(indexfile);
+			slot->local = NULL;
 			return error("Unable to get pack index %s\n%s", url,
 				     curl_errorstr);
 		}
 	} else {
 		fclose(indexfile);
+		slot->local = NULL;
 		return error("Unable to start request");
 	}
 
 	fclose(indexfile);
+	slot->local = NULL;
 
 	return move_temp_to_file(tmpfile, filename);
 }
@@ -776,16 +779,19 @@ static int fetch_pack(struct walker *walker, struct alt_base *repo, unsigned cha
 		run_active_slot(slot);
 		if (results.curl_result != CURLE_OK) {
 			fclose(packfile);
+			slot->local = NULL;
 			return error("Unable to get pack file %s\n%s", url,
 				     curl_errorstr);
 		}
 	} else {
 		fclose(packfile);
+		slot->local = NULL;
 		return error("Unable to start request");
 	}
 
 	target->pack_size = ftell(packfile);
 	fclose(packfile);
+	slot->local = NULL;
 
 	ret = move_temp_to_file(tmpfile, filename);
 	if (ret)