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authorJo-Philipp Wich <jow@openwrt.org>2015-11-16 18:15:00 +0000
committerJo-Philipp Wich <jow@openwrt.org>2015-11-16 18:15:00 +0000
commit2bbee707e4bd625525606a4796de3dff97aedde4 (patch)
treee3bc14c0b247d0426b8e97eb5911990981d2f390 /toolchain
parentb7b275b665ce350c6e4dec0bc94bc833dc4b997d (diff)
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musl: fix handling of point-to-point interfaces in getifaddrs()
Current musl reports the peer (remote) address of a point-to-point interface and does not store the local address at all. Apply the same special treatment of IFA_LOCAL to musl's getifaddrs() which is also used in glibc and uclibc. Signed-off-by: Jo-Philipp Wich <jow@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@47488 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'toolchain')
-rw-r--r--toolchain/musl/patches/920-getifaddrs_ptp_fix.patch18
1 files changed, 18 insertions, 0 deletions
diff --git a/toolchain/musl/patches/920-getifaddrs_ptp_fix.patch b/toolchain/musl/patches/920-getifaddrs_ptp_fix.patch
new file mode 100644
index 0000000000..3e65232563
--- /dev/null
+++ b/toolchain/musl/patches/920-getifaddrs_ptp_fix.patch
@@ -0,0 +1,18 @@
+--- a/src/network/getifaddrs.c
++++ b/src/network/getifaddrs.c
+@@ -161,6 +161,15 @@ static int netlink_msg_to_ifaddr(void *p
+ ifs->ifa.ifa_flags = ifs0->ifa.ifa_flags;
+ for (rta = NLMSG_RTA(h, sizeof(*ifa)); NLMSG_RTAOK(rta, h); rta = RTA_NEXT(rta)) {
+ switch (rta->rta_type) {
++ case IFA_LOCAL:
++ /* If ifa_addr is set and we get IFA_LOCAL, assume we have
++ * a point-to-point network. Move address to correct field. */
++ if (ifs->ifa.ifa_addr != NULL) {
++ ifs->ifu = ifs->addr;
++ ifs->ifa.ifa_broadaddr = &ifs->ifu.sa;
++ memset(&ifs->addr, 0, sizeof(ifs->addr));
++ }
++ /* fall through */
+ case IFA_ADDRESS:
+ copy_addr(&ifs->ifa.ifa_addr, ifa->ifa_family, &ifs->addr, RTA_DATA(rta), RTA_DATALEN(rta), ifa->ifa_index);
+ break;