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resolv: Remove support for RES_USE_INET6 and the inet6 option

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This functionality was deprecated in glibc 2.25.

This commit only includes the core changes to remove the
functionality.  It does not remove the RES_USE_INET6 handling in the
individual NSS service modules and the res_use_inet6 function.
These changes will happen in future commits.
This commit is contained in:
Florian Weimer
2019-04-08 10:40:31 +02:00
parent 94e358f6d4
commit 3f8b44be0a
15 changed files with 61 additions and 680 deletions
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9
resolv/resolv-internal.h
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@@ -27,15 +27,12 @@
#define RES_F_CONN 0x00000002 /* Socket is connected. */
#define RES_F_EDNS0ERR 0x00000004 /* EDNS0 caused errors. */
/* Internal version of RES_USE_INET6 which does not trigger a
deprecation warning. */
#define DEPRECATED_RES_USE_INET6 0x00002000
/* Legacy function. This needs to be removed once all NSS modules
have been adjusted. */
static inline bool
res_use_inet6 (void)
{
return _res.options & DEPRECATED_RES_USE_INET6;
return false;
}
enum