From 6200912793cc212ede59c2d1c0dfacf189e84c69 Mon Sep 17 00:00:00 2001
From: GNU Libc Maintainers <debian-glibc@lists.debian.org>
Date: Fri, 26 Jan 2018 22:35:29 +0000
Subject: [PATCH] git-ifaddrs-linknamespace
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commit 7edd06916d0f18714f323b180b890f1fea39e1ff
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Wed Sep 27 17:18:32 2017 -0700

    Update sysdeps/unix/sysv/linux/ifaddrs.c

    Fix

    ../sysdeps/unix/sysv/linux/ifaddrs.c:835:27: error: ‘getifaddrs’ aliased to undefined symbol ‘__getifaddrs’
     weak_alias (__getifaddrs, getifaddrs)
                               ^
    ../sysdeps/unix/sysv/linux/ifaddrs.c:844:28: error: ‘freeifaddrs’ aliased to undefined symbol ‘__freeifaddrs’
     weak_alias (__freeifaddrs, freeifaddrs)

    caused by

    commit 4009ddc69225d571772aaea597615a0c032e14ab
    Author: Samuel Thibault <samuel.thibault@ens-lyon.org>
    Date:   Thu Sep 28 00:19:18 2017 +0200

        hurd: Fix `getifaddrs' and `freeifaddrs' symbol exposition

            * sysdeps/unix/sysv/linux/ifaddrs.c (__getifaddrs): Add
            libc_hidden_def.
            (__freeifaddrs): Likewise.

commit 4009ddc69225d571772aaea597615a0c032e14ab
Author: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date:   Thu Sep 28 00:19:18 2017 +0200

    hurd: Fix `getifaddrs' and `freeifaddrs' symbol exposition

    from `freeaddrinfo'.

    `getifaddrs' and `freeifaddrs' are not in POSIX, they should not be
    exposed along `freeaddrinfo' (through `__check_pf') which is POSIX.

            * include/ifaddrs.h (__getifaddrs, __freeifaddrs): New declarations,
            and use libc_hidden_def on them.
            * inet/ifaddrs.c (__getifaddrs, __freeifaddrs): Use libc_hidden_def on
            them.
            * sysdeps/gnu/ifaddrs.c (__getifaddrs, __freeifaddrs): Likewise.
            * inet/check_pf.c (__check_pf): Use __getifaddrs and __freeifaddrs
            instead of getifaddrs and freeifaddrs.


Gbp-Pq: Topic hurd-i386
Gbp-Pq: Name git-ifaddrs-linknamespace.diff
---
 include/ifaddrs.h                 | 5 +++++
 inet/check_pf.c                   | 4 ++--
 inet/ifaddrs.c                    | 2 ++
 sysdeps/gnu/ifaddrs.c             | 2 ++
 sysdeps/unix/sysv/linux/ifaddrs.c | 2 ++
 5 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/include/ifaddrs.h b/include/ifaddrs.h
index 54f4b7a3c..416118f1b 100644
--- a/include/ifaddrs.h
+++ b/include/ifaddrs.h
@@ -9,6 +9,11 @@
 libc_hidden_proto (getifaddrs)
 libc_hidden_proto (freeifaddrs)
 
+extern int __getifaddrs (struct ifaddrs **__ifap);
+libc_hidden_proto (__getifaddrs)
+extern void __freeifaddrs (struct ifaddrs *__ifa);
+libc_hidden_proto (__freeifaddrs)
+
 struct in6addrinfo
 {
   enum {
diff --git a/inet/check_pf.c b/inet/check_pf.c
index a56723a7d..84dd1699d 100644
--- a/inet/check_pf.c
+++ b/inet/check_pf.c
@@ -32,7 +32,7 @@ __check_pf (bool *seen_ipv4, bool *seen_ipv6,
 
   /* Get the interface list via getifaddrs.  */
   struct ifaddrs *ifa = NULL;
-  if (getifaddrs (&ifa) != 0)
+  if (__getifaddrs (&ifa) != 0)
     {
       /* We cannot determine what interfaces are available.  Be
 	 pessimistic.  */
@@ -51,7 +51,7 @@ __check_pf (bool *seen_ipv4, bool *seen_ipv6,
     else if (runp->ifa_addr->sa_family == PF_INET6)
       *seen_ipv6 = true;
 
-  (void) freeifaddrs (ifa);
+  (void) __freeifaddrs (ifa);
 }
 
 
diff --git a/inet/ifaddrs.c b/inet/ifaddrs.c
index 35cc27722..0a5c71c05 100644
--- a/inet/ifaddrs.c
+++ b/inet/ifaddrs.c
@@ -30,6 +30,7 @@ __getifaddrs (struct ifaddrs **ifap)
   return -1;
 }
 weak_alias (__getifaddrs, getifaddrs)
+libc_hidden_def (__getifaddrs)
 libc_hidden_weak (getifaddrs)
 stub_warning (getifaddrs)
 
@@ -43,5 +44,6 @@ __freeifaddrs (struct ifaddrs *ifa)
   abort ();
 }
 weak_alias (__freeifaddrs, freeifaddrs)
+libc_hidden_def (__freeifaddrs)
 libc_hidden_weak (freeifaddrs)
 stub_warning (freeifaddrs)
diff --git a/sysdeps/gnu/ifaddrs.c b/sysdeps/gnu/ifaddrs.c
index 37b324866..80702eb1d 100644
--- a/sysdeps/gnu/ifaddrs.c
+++ b/sysdeps/gnu/ifaddrs.c
@@ -151,6 +151,7 @@ __getifaddrs (struct ifaddrs **ifap)
   return 0;
 }
 weak_alias (__getifaddrs, getifaddrs)
+libc_hidden_def (__getifaddrs)
 #ifndef getifaddrs
 libc_hidden_weak (getifaddrs)
 #endif
@@ -161,4 +162,5 @@ __freeifaddrs (struct ifaddrs *ifa)
   free (ifa);
 }
 weak_alias (__freeifaddrs, freeifaddrs)
+libc_hidden_def (__freeifaddrs)
 libc_hidden_weak (freeifaddrs)
diff --git a/sysdeps/unix/sysv/linux/ifaddrs.c b/sysdeps/unix/sysv/linux/ifaddrs.c
index 3bc990286..a02f5aac0 100644
--- a/sysdeps/unix/sysv/linux/ifaddrs.c
+++ b/sysdeps/unix/sysv/linux/ifaddrs.c
@@ -834,6 +834,7 @@ __getifaddrs (struct ifaddrs **ifap)
   return res;
 }
 weak_alias (__getifaddrs, getifaddrs)
+libc_hidden_def (__getifaddrs)
 libc_hidden_weak (getifaddrs)
 
 
@@ -843,4 +844,5 @@ __freeifaddrs (struct ifaddrs *ifa)
   free (ifa);
 }
 weak_alias (__freeifaddrs, freeifaddrs)
+libc_hidden_def (__freeifaddrs)
 libc_hidden_weak (freeifaddrs)
-- 
2.30.2