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glibc: Fix an assertion failure in getaddrinfo.c

Browse Source 
For instance, when connected to a VPN, Emacs would randomly crash
at startup:

emacs: ../sysdeps/posix/getaddrinfo.c:1467: rfc3484_sort: Assertion `src->results[i].native == -1 || src->results[i].native == a2_native' failed.
This commit is contained in:
Eelco Dolstra 2013-03-06 14:02:53 +01:00
parent 92656e5f52
commit 4623d3ff01
2 changed files with 60 additions and 0 deletions
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5
pkgs/development/libraries/glibc/2.17/common.nix
View File

@ -49,6 +49,11 @@ stdenv.mkDerivation ({
compatibility with old NixOS installations (since NixOS used
to default to blowfish). */
./glibc-crypt-blowfish.patch
/* Fix for random "./sysdeps/posix/getaddrinfo.c:1467:
rfc3484_sort: Assertion `src->results[i].native == -1 ||
src->results[i].native == a2_native' failed." crashes. */
./glibc-rh739743.patch
];
postPatch = ''

55
pkgs/development/libraries/glibc/2.17/glibc-rh739743.patch Normal file
View File

@ -0,0 +1,55 @@
2009-04-26 Aurelien Jarno <aurelien@aurel32.net>
* sysdeps/posix/getaddrinfo.c (rfc3484_sort): don't assign native
result if the result has no associated interface.
---
sysdeps/posix/getaddrinfo.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -1456,13 +1456,13 @@
/* Fill in the results in all the records. */
for (int i = 0; i < src->nresults; ++i)
- if (src->results[i].index == a1_index)
+ if (a1_index != -1 && src->results[i].index == a1_index)
{
assert (src->results[i].native == -1
|| src->results[i].native == a1_native);
src->results[i].native = a1_native;
}
- else if (src->results[i].index == a2_index)
+ else if (a2_index != -1 && src->results[i].index == a2_index)
{
assert (src->results[i].native == -1
|| src->results[i].native == a2_native);
2009-03-15 Aurelien Jarno <aurelien@aurel32.net>
* sysdeps/posix/getaddrinfo.c (getaddrinfo): correctly detect
interface for all 127.X.Y.Z addresses.
---
sysdeps/posix/getaddrinfo.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -2265,7 +2265,14 @@
tmp.addr[0] = 0;
tmp.addr[1] = 0;
tmp.addr[2] = htonl (0xffff);
- tmp.addr[3] = sinp->sin_addr.s_addr;
+ /* Special case for lo interface, the source address
+ being possibly different than the interface
+ address. */
+ if ((ntohl(sinp->sin_addr.s_addr) & 0xff000000)
+ == 0x7f000000)
+ tmp.addr[3] = htonl(0x7f000001);
+ else
+ tmp.addr[3] = sinp->sin_addr.s_addr;
}
else
{