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| author | Zack Weinberg <zackw@panix.com> | 2017-03-22 09:55:25 -0400 |
|---|---|---|
| committer | Zack Weinberg <zackw@panix.com> | 2017-05-20 19:01:46 -0400 |
| commit | 500b3a499fff61157db464a99f459c772d7eb6c0 (patch) | |
| tree | e083962624bc0aeeacb478c310a2d759365d22df /resolv/bits | |
| parent | 1f655beb087a4ade30a0299d6f92b9916fbf7cc7 (diff) | |
| download | glibc-500b3a499fff61157db464a99f459c772d7eb6c0.tar.gz glibc-500b3a499fff61157db464a99f459c772d7eb6c0.tar.xz glibc-500b3a499fff61157db464a99f459c772d7eb6c0.zip | |
Remove __need_list_t and __need_res_state.
These __need macros are only used internally, by nptl/descr.h. However, including all of resolv.h from descr.h causes build failures due to resolv.h's dozens of pseudo-struct-field macros, some of which collide with struct fields in NPTL internal data structures. Similarly, including all of list.h from descr.h produces an include cycle, atomic.h -> atomic-machine.h -> tls.h -> descr.h -> list.h -> atomic.h, and then list.h tries to use atomic.h macros that haven't been defined yet. So we do need mini-headers for these. In the list.h case I called it include/list_t.h since it isn't going to be installed. * resolv/resolv.h: Remove __need_res_state logic. Move definition of res_state and related constants to ... * resolv/bits/types/res_state.h: ...this new file. * resolv/Makefile: Install bits/types/res_state.h. * include/bits/types/res_state.h: New wrapper. * include/list.h: Remove __need_list_t logic. Move definition of list_t to ... * include/list_t.h: ...this new file. * nptl/descr.h: Include list_t.h and bits/types/res_state.h instead of list.h and resolv.h.
Diffstat (limited to 'resolv/bits')
| -rw-r--r-- | resolv/bits/types/res_state.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/resolv/bits/types/res_state.h b/resolv/bits/types/res_state.h new file mode 100644 index 0000000000..cee4b6ddd0 --- /dev/null +++ b/resolv/bits/types/res_state.h @@ -0,0 +1,61 @@ +#ifndef __res_state_defined +#define __res_state_defined 1 + +#include <sys/types.h> +#include <netinet/in.h> + +/* res_state: the global state used by the resolver stub. */ +#define MAXNS 3 /* max # name servers we'll track */ +#define MAXDFLSRCH 3 /* # default domain levels to try */ +#define MAXDNSRCH 6 /* max # domains in search path */ +#define MAXRESOLVSORT 10 /* number of net to sort on */ + +struct __res_state { + int retrans; /* retransmition time interval */ + int retry; /* number of times to retransmit */ + unsigned long options; /* option flags - see below. */ + int nscount; /* number of name servers */ + struct sockaddr_in + nsaddr_list[MAXNS]; /* address of name server */ + unsigned short id; /* current message id */ + /* 2 byte hole here. */ + char *dnsrch[MAXDNSRCH+1]; /* components of domain to search */ + char defdname[256]; /* default domain (deprecated) */ + unsigned long pfcode; /* RES_PRF_ flags - see below. */ + unsigned ndots:4; /* threshold for initial abs. query */ + unsigned nsort:4; /* number of elements in sort_list[] */ + unsigned ipv6_unavail:1; /* connecting to IPv6 server failed */ + unsigned unused:23; + struct { + struct in_addr addr; + uint32_t mask; + } sort_list[MAXRESOLVSORT]; + /* 4 byte hole here on 64-bit architectures. */ + void * __glibc_unused_qhook; + void * __glibc_unused_rhook; + int res_h_errno; /* last one set for this context */ + int _vcsock; /* PRIVATE: for res_send VC i/o */ + unsigned int _flags; /* PRIVATE: see below */ + /* 4 byte hole here on 64-bit architectures. */ + union { + char pad[52]; /* On an i386 this means 512b total. */ + struct { + uint16_t nscount; + uint16_t nsmap[MAXNS]; + int nssocks[MAXNS]; + uint16_t nscount6; + uint16_t nsinit; + struct sockaddr_in6 *nsaddrs[MAXNS]; +#ifdef _LIBC + unsigned long long int initstamp + __attribute__((packed)); +#else + unsigned int _initstamp[2]; +#endif + } _ext; + } _u; +}; + +typedef struct __res_state *res_state; + +#endif /* __res_state_defined */ |