[uClibc] enable support for getifaddrs() - required by lldpd

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13834 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 162 insertions, 0 deletions

diff --git a/toolchain/uClibc/patches/170-enable-getifaddrs.patch b/toolchain/uClibc/patches/170-enable-getifaddrs.patch
new file mode 100644
index 000000000..da393feba
--- /dev/null
+++ b/toolchain/uClibc/patches/170-enable-getifaddrs.patch
@@ -0,0 +1,162 @@
+Index: uclibc/libc/inet/ifaddrs.c
+===================================================================
+--- uclibc.orig/libc/inet/ifaddrs.c
++++ uclibc/libc/inet/ifaddrs.c
+@@ -38,6 +38,7 @@
+ #include <unistd.h>
+ 
+ #include "netlinkaccess.h"
++#include "ifaddrs.h"
+ 
+ libc_hidden_proto(socket)
+ libc_hidden_proto(close)
+@@ -57,7 +58,6 @@ libc_hidden_proto(abort)
+ 
+ 
+ #if __ASSUME_NETLINK_SUPPORT
+-#if 0 /* unused code */
+ /* struct to hold the data for one ifaddrs entry, so we can allocate
+    everything at once.  */
+ struct ifaddrs_storage
+@@ -74,8 +74,6 @@ struct ifaddrs_storage
+   } addr, netmask, broadaddr;
+   char name[IF_NAMESIZE + 1];
+ };
+-#endif /* unused code */
+-
+ 
+ void
+ __netlink_free_handle (struct netlink_handle *h)
+@@ -323,8 +321,6 @@ __netlink_open (struct netlink_handle *h
+   return 0;
+ }
+ 
+-
+-#if 0 /* unused code */
+ /* We know the number of RTM_NEWLINK entries, so we reserve the first
+    # of entries for this type. All RTM_NEWADDR entries have an index
+    pointer to the RTM_NEWLINK entry.  To find the entry, create
+@@ -562,7 +558,7 @@ getifaddrs (struct ifaddrs **ifap)
+ 		      if ((rta_payload + 1) <= sizeof (ifas[ifa_index].name))
+ 			{
+ 			  ifas[ifa_index].ifa.ifa_name = ifas[ifa_index].name;
+-			  *(char *) __mempcpy (ifas[ifa_index].name, rta_data,
++			  *(char *) mempcpy (ifas[ifa_index].name, rta_data,
+ 					       rta_payload) = '\0';
+ 			}
+ 		      break;
+@@ -761,7 +757,7 @@ getifaddrs (struct ifaddrs **ifap)
+ 		      if (rta_payload + 1 <= sizeof (ifas[ifa_index].name))
+ 			{
+ 			  ifas[ifa_index].ifa.ifa_name = ifas[ifa_index].name;
+-			  *(char *) __mempcpy (ifas[ifa_index].name, rta_data,
++			  *(char *) mempcpy (ifas[ifa_index].name, rta_data,
+ 					       rta_payload) = '\0';
+ 			}
+ 		      else
+@@ -872,6 +868,4 @@ freeifaddrs (struct ifaddrs *ifa)
+ }
+ #endif
+ 
+-#endif /* unused code */
+-
+ #endif /* __ASSUME_NETLINK_SUPPORT */
+Index: uclibc/libc/inet/netlinkaccess.h
+===================================================================
+--- uclibc.orig/libc/inet/netlinkaccess.h
++++ uclibc/libc/inet/netlinkaccess.h
+@@ -61,14 +61,11 @@ struct netlink_handle
+ };
+ 
+ 
+-#if 0 /* unused code */
+ #if __ASSUME_NETLINK_SUPPORT == 0
+ extern int __no_netlink_support attribute_hidden;
+ #else
+ # define __no_netlink_support 0
+ #endif
+-#endif /* unused code */
+-
+ 
+ extern int __netlink_open (struct netlink_handle *h) attribute_hidden;
+ extern void __netlink_close (struct netlink_handle *h) attribute_hidden;
+Index: uclibc/include/ifaddrs.h
+===================================================================
+--- /dev/null
++++ uclibc/include/ifaddrs.h
+@@ -0,0 +1,74 @@
++/* ifaddrs.h -- declarations for getting network interface addresses
++   Copyright (C) 2002 Free Software Foundation, Inc.
++   This file is part of the GNU C Library.
++
++   The GNU C Library is free software; you can redistribute it and/or
++   modify it under the terms of the GNU Lesser General Public
++   License as published by the Free Software Foundation; either
++   version 2.1 of the License, or (at your option) any later version.
++
++   The GNU C Library is distributed in the hope that it will be useful,
++   but WITHOUT ANY WARRANTY; without even the implied warranty of
++   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++   Lesser General Public License for more details.
++
++   You should have received a copy of the GNU Lesser General Public
++   License along with the GNU C Library; if not, write to the Free
++   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++   02111-1307 USA.  */
++
++#ifndef _IFADDRS_H
++#define _IFADDRS_H	1
++
++#include <features.h>
++#include <sys/socket.h>
++
++__BEGIN_DECLS
++
++/* The `getifaddrs' function generates a linked list of these structures.
++   Each element of the list describes one network interface.  */
++struct ifaddrs
++{
++  struct ifaddrs *ifa_next;	/* Pointer to the next structure.  */
++
++  char *ifa_name;		/* Name of this network interface.  */
++  unsigned int ifa_flags;	/* Flags as from SIOCGIFFLAGS ioctl.  */
++
++  struct sockaddr *ifa_addr;	/* Network address of this interface.  */
++  struct sockaddr *ifa_netmask; /* Netmask of this interface.  */
++  union
++  {
++    /* At most one of the following two is valid.  If the IFF_BROADCAST
++       bit is set in `ifa_flags', then `ifa_broadaddr' is valid.  If the
++       IFF_POINTOPOINT bit is set, then `ifa_dstaddr' is valid.
++       It is never the case that both these bits are set at once.  */
++    struct sockaddr *ifu_broadaddr; /* Broadcast address of this interface. */
++    struct sockaddr *ifu_dstaddr; /* Point-to-point destination address.  */
++  } ifa_ifu;
++  /* These very same macros are defined by <net/if.h> for `struct ifaddr'.
++     So if they are defined already, the existing definitions will be fine.  */
++# ifndef ifa_broadaddr
++#  define ifa_broadaddr	ifa_ifu.ifu_broadaddr
++# endif
++# ifndef ifa_dstaddr
++#  define ifa_dstaddr	ifa_ifu.ifu_dstaddr
++# endif
++
++  void *ifa_data;		/* Address-specific data (may be unused).  */
++};
++
++
++/* Create a linked list of `struct ifaddrs' structures, one for each
++   network interface on the host machine.  If successful, store the
++   list in *IFAP and return 0.  On errors, return -1 and set `errno'.
++
++   The storage returned in *IFAP is allocated dynamically and can
++   only be properly freed by passing it to `freeifaddrs'.  */
++extern int getifaddrs (struct ifaddrs **__ifap) __THROW;
++
++/* Reclaim the storage allocated by a previous `getifaddrs' call.  */
++extern void freeifaddrs (struct ifaddrs *__ifa)  __THROW;
++
++__END_DECLS
++
++#endif /* ifaddrs.h */
+