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authorFlorian Weimer <fweimer@redhat.com>2017-07-03 20:31:23 +0200
committerFlorian Weimer <fweimer@redhat.com>2017-07-03 20:57:28 +0200
commitf30a54b21b83f254533c59ca72ad17af5249c6be (patch)
tree174c6e8b77d8fc1514f4108e3290b91d19d838a6 /resolv/bits
parent352f4ff9a268b81ef5d4b2413f582565806e4790 (diff)
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resolv: Introduce struct resolv_conf with extended resolver state
This change provides additional resolver configuration state which is not exposed through the _res ABI. It reuses the existing initstamp field in the supposedly-private part of _res. Some effort is undertaken to avoid memory safety issues introduced by applications which directly patch the _res object. With this commit, only the initstamp field is moved into struct resolv_conf. Additional members will be added later, eventually migrating the entire resolver configuration.
Diffstat (limited to 'resolv/bits')
-rw-r--r--resolv/bits/types/res_state.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/resolv/bits/types/res_state.h b/resolv/bits/types/res_state.h
index cee4b6ddd0..2544a627f6 100644
--- a/resolv/bits/types/res_state.h
+++ b/resolv/bits/types/res_state.h
@@ -47,10 +47,10 @@ struct __res_state {
uint16_t nsinit;
struct sockaddr_in6 *nsaddrs[MAXNS];
#ifdef _LIBC
- unsigned long long int initstamp
+ unsigned long long int __glibc_extension_index
__attribute__((packed));
#else
- unsigned int _initstamp[2];
+ unsigned int __glibc_reserved[2];
#endif
} _ext;
} _u;