commit:     cf5756d9f7c89635bf73b4f781f464b24019a77c
Author:     Anthony G. Basile <blueness <AT> gentoo <DOT> org>
AuthorDate: Tue Oct  2 23:42:46 2018 +0000
Commit:     Anthony G. Basile <blueness <AT> gentoo <DOT> org>
CommitDate: Tue Oct  2 23:42:46 2018 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=cf5756d9

sys-libs/musl: fix bug #667234

Signed-off-by: Anthony G. Basile <blueness <AT> gentoo.org>
Package-Manager: Portage-2.3.49, Repoman-2.3.10

 .../musl/files/musl-1.1.20-fix-getaddrinfo.patch   |  51 +++++++++
 sys-libs/musl/musl-1.1.20-r1.ebuild                | 123 +++++++++++++++++++++
 2 files changed, 174 insertions(+)

diff --git a/sys-libs/musl/files/musl-1.1.20-fix-getaddrinfo.patch 
b/sys-libs/musl/files/musl-1.1.20-fix-getaddrinfo.patch
new file mode 100644
index 00000000000..28d4558b8b6
--- /dev/null
+++ b/sys-libs/musl/files/musl-1.1.20-fix-getaddrinfo.patch
@@ -0,0 +1,51 @@
+From f381c118b2d4f7d914481d3cdc830ce41369b002 Mon Sep 17 00:00:00 2001
+From: Rich Felker <dal...@aerifal.cx>
+Date: Wed, 19 Sep 2018 18:03:22 -0400
+Subject: fix getaddrinfo regression with AI_ADDRCONFIG on some configurations
+
+despite not being documented to do so in the standard or Linux
+documentation, attempts to udp connect to 127.0.0.1 or ::1 generate
+EADDRNOTAVAIL when the loopback device is not configured and there is
+no default route for IPv6. this caused getaddrinfo with AI_ADDRCONFIG
+to fail with EAI_SYSTEM and EADDRNOTAVAIL on some no-IPv6
+configurations, rather than the intended behavior of detecting IPv6 as
+unsuppported and producing IPv4-only results.
+
+previously, only EAFNOSUPPORT was treated as unavailability of the
+address family being probed. instead, treat all errors related to
+inability to get an address or route as conclusive that the family
+being probed is unsupported, and only fail with EAI_SYSTEM on other
+errors.
+
+further improvements may be desirable, such as reporting EAI_AGAIN
+instead of EAI_SYSTEM for errors which are expected to be transient,
+but this patch should suffice to fix the serious regression.
+---
+ src/network/getaddrinfo.c | 11 ++++++++++-
+ 1 file changed, 10 insertions(+), 1 deletion(-)
+
+diff --git a/src/network/getaddrinfo.c b/src/network/getaddrinfo.c
+index ba26847a..e33bfa28 100644
+--- a/src/network/getaddrinfo.c
++++ b/src/network/getaddrinfo.c
+@@ -76,7 +76,16 @@ int getaddrinfo(const char *restrict host, const char 
*restrict serv, const stru
+                               close(s);
+                               if (!r) continue;
+                       }
+-                      if (errno != EAFNOSUPPORT) return EAI_SYSTEM;
++                      switch (errno) {
++                      case EADDRNOTAVAIL:
++                      case EAFNOSUPPORT:
++                      case EHOSTUNREACH:
++                      case ENETDOWN:
++                      case ENETUNREACH:
++                              break;
++                      default:
++                              return EAI_SYSTEM;
++                      }
+                       if (family == tf[i]) return EAI_NONAME;
+                       family = tf[1-i];
+               }
+-- 
+cgit v1.2.1
+

diff --git a/sys-libs/musl/musl-1.1.20-r1.ebuild 
b/sys-libs/musl/musl-1.1.20-r1.ebuild
new file mode 100644
index 00000000000..cba85ae6bb6
--- /dev/null
+++ b/sys-libs/musl/musl-1.1.20-r1.ebuild
@@ -0,0 +1,123 @@
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+inherit eutils flag-o-matic multilib toolchain-funcs
+if [[ ${PV} == "9999" ]] ; then
+       EGIT_REPO_URI="git://git.musl-libc.org/musl"
+       inherit git-r3
+       SRC_URI="
+       https://dev.gentoo.org/~blueness/musl-misc/getconf.c
+       https://dev.gentoo.org/~blueness/musl-misc/getent.c
+       https://dev.gentoo.org/~blueness/musl-misc/iconv.c";
+       KEYWORDS=""
+else
+       SRC_URI="http://www.musl-libc.org/releases/${P}.tar.gz
+       https://dev.gentoo.org/~blueness/musl-misc/getconf.c
+       https://dev.gentoo.org/~blueness/musl-misc/getent.c
+       https://dev.gentoo.org/~blueness/musl-misc/iconv.c";
+       KEYWORDS="-* ~amd64 ~arm ~arm64 ~mips ~ppc ~x86"
+fi
+
+export CBUILD=${CBUILD:-${CHOST}}
+export CTARGET=${CTARGET:-${CHOST}}
+if [[ ${CTARGET} == ${CHOST} ]] ; then
+       if [[ ${CATEGORY} == cross-* ]] ; then
+               export CTARGET=${CATEGORY#cross-}
+       fi
+fi
+
+DESCRIPTION="Light, fast and simple C library focused on standards-conformance 
and safety"
+HOMEPAGE="http://www.musl-libc.org/";
+LICENSE="MIT LGPL-2 GPL-2"
+SLOT="0"
+IUSE="headers-only"
+
+QA_SONAME="/usr/lib/libc.so"
+QA_DT_NEEDED="/usr/lib/libc.so"
+
+is_crosscompile() {
+       [[ ${CHOST} != ${CTARGET} ]]
+}
+
+just_headers() {
+       use headers-only && is_crosscompile
+}
+
+pkg_setup() {
+       if [ ${CTARGET} == ${CHOST} ] ; then
+               case ${CHOST} in
+               *-musl*) ;;
+               *) die "Use sys-devel/crossdev to build a musl toolchain" ;;
+               esac
+       fi
+}
+
+src_prepare() {
+       eapply "${FILESDIR}/${P}-fix-getaddrinfo.patch"
+       eapply_user
+}
+
+src_configure() {
+       tc-getCC ${CTARGET}
+       just_headers && export CC=true
+
+       local sysroot
+       is_crosscompile && sysroot=/usr/${CTARGET}
+       ./configure \
+               --target=${CTARGET} \
+               --prefix=${sysroot}/usr \
+               --syslibdir=${sysroot}/lib \
+               --disable-gcc-wrapper || die
+}
+
+src_compile() {
+       emake obj/include/bits/alltypes.h
+       just_headers && return 0
+
+       emake
+       if [[ ${CATEGORY} != cross-* ]] ; then
+               $(tc-getCC) ${CFLAGS} "${DISTDIR}"/getconf.c -o "${T}"/getconf 
|| die
+               $(tc-getCC) ${CFLAGS} "${DISTDIR}"/getent.c -o "${T}"/getent || 
die
+               $(tc-getCC) ${CFLAGS} "${DISTDIR}"/iconv.c -o "${T}"/iconv || 
die
+       fi
+}
+
+src_install() {
+       local target="install"
+       just_headers && target="install-headers"
+       emake DESTDIR="${D}" ${target}
+       just_headers && return 0
+
+       # musl provides ldd via a sym link to its ld.so
+       local sysroot
+       is_crosscompile && sysroot=/usr/${CTARGET}
+       local ldso=$(basename "${D}"${sysroot}/lib/ld-musl-*)
+       dosym ${sysroot}/lib/${ldso} ${sysroot}/usr/bin/ldd
+
+       if [[ ${CATEGORY} != cross-* ]] ; then
+               local arch=$("${D}"usr/lib/libc.so 2>&1 | sed -n '1s/^musl libc 
(\(.*\))$/\1/p')
+               [[ -e "${D}"/lib/ld-musl-${arch}.so.1 ]] || die
+               cp "${FILESDIR}"/ldconfig.in "${T}" || die
+               sed -e "s|@@ARCH@@|${arch}|" "${T}"/ldconfig.in > 
"${T}"/ldconfig || die
+               into /
+               dosbin "${T}"/ldconfig
+               into /usr
+               dobin "${T}"/getconf
+               dobin "${T}"/getent
+               dobin "${T}"/iconv
+               echo 'LDPATH="include ld.so.conf.d/*.conf"' > "${T}"/00musl || 
die
+               doenvd "${T}"/00musl || die
+       fi
+}
+
+pkg_postinst() {
+       is_crosscompile && return 0
+
+       [ "${ROOT}" != "/" ] && return 0
+
+       ldconfig || die
+       # reload init ...
+       /sbin/telinit U 2>/dev/null
+}

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