M gnu/local.mk => gnu/local.mk +1 -0
@@ 677,6 677,7 @@ dist_patch_DATA = \
%D%/packages/patches/libdrm-symbol-check.patch \
%D%/packages/patches/libepoxy-gl-null-checks.patch \
%D%/packages/patches/libevent-dns-tests.patch \
+ %D%/packages/patches/libevent-2.0-evbuffer-add-use-last-with-datap.patch \
%D%/packages/patches/libevent-2.0-evdns-fix-remote-stack-overread.patch \
%D%/packages/patches/libevent-2.0-evdns-fix-searching-empty-hostnames.patch \
%D%/packages/patches/libevent-2.0-evutil-fix-buffer-overflow.patch \
M gnu/packages/libevent.scm => gnu/packages/libevent.scm +15 -13
@@ 1,6 1,6 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
-;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
+;;; Copyright © 2015, 2017 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2015 Eric Dvorsak <eric@dvorsak.fr>
;;; Copyright © 2016 David Thompson <davet@gnu.org>
;;; Copyright © 2017 Marius Bakke <mbakke@fastmail.com>
@@ 74,18 74,20 @@ loop.")
(inherit libevent)
(version "2.0.22")
(source (origin
- (method url-fetch)
- (uri (string-append
- "https://github.com/libevent/libevent/releases/download/release-"
- version "-stable/libevent-" version "-stable.tar.gz"))
- (sha256
- (base32
- "18qz9qfwrkakmazdlwxvjmw8p76g70n3faikwvdwznns1agw9hki"))
- (patches (search-patches
- "libevent-dns-tests.patch"
- "libevent-2.0-evdns-fix-remote-stack-overread.patch"
- "libevent-2.0-evutil-fix-buffer-overflow.patch"
- "libevent-2.0-evdns-fix-searching-empty-hostnames.patch"))))))
+ (method url-fetch)
+ (uri (string-append
+ "https://github.com/libevent/libevent/releases/download/release-"
+ version "-stable/libevent-" version "-stable.tar.gz"))
+ (sha256
+ (base32
+ "18qz9qfwrkakmazdlwxvjmw8p76g70n3faikwvdwznns1agw9hki"))
+ (patches
+ (search-patches
+ "libevent-dns-tests.patch"
+ "libevent-2.0-evdns-fix-remote-stack-overread.patch"
+ "libevent-2.0-evutil-fix-buffer-overflow.patch"
+ "libevent-2.0-evdns-fix-searching-empty-hostnames.patch"
+ "libevent-2.0-evbuffer-add-use-last-with-datap.patch"))))))
(define-public libev
(package
A gnu/packages/patches/libevent-2.0-evbuffer-add-use-last-with-datap.patch => gnu/packages/patches/libevent-2.0-evbuffer-add-use-last-with-datap.patch +38 -0
@@ 0,0 1,38 @@
+From a8769ef12d7e223e33fc47bed03fba2bfa2f3536 Mon Sep 17 00:00:00 2001
+From: Marcus Sundberg <marcus@marcussundberg.com>
+Date: Sat, 26 Mar 2016 20:11:43 +0100
+Subject: [PATCH] evbuffer_add: Use last_with_datap if set, not last.
+
+evbuffer_add() would always put data in the last chain, even if there
+was available space in a previous chain, and in doing so it also
+failed to update last_with_datap, causing subsequent calls to other
+functions that do look at last_with_datap to add data in the middle
+of the evbuffer instead of at the end.
+
+Fixes the evbuffer_add() part of issue #335, and the evbuffer/add2 and
+evbuffer/add3 tests, and also prevents wasting space available in the
+chain pointed to by last_with_datap.
+---
+ buffer.c | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/buffer.c b/buffer.c
+index 7cca0e8a..f378b731 100644
+--- a/buffer.c
++++ b/buffer.c
+@@ -1732,7 +1732,11 @@ evbuffer_add(struct evbuffer *buf, const void *data_in, size_t datlen)
+ goto done;
+ }
+
+- chain = buf->last;
++ if (*buf->last_with_datap == NULL) {
++ chain = buf->last;
++ } else {
++ chain = *buf->last_with_datap;
++ }
+
+ /* If there are no chains allocated for this buffer, allocate one
+ * big enough to hold all the data. */
+--
+2.12.0
+