| #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 __glibc_extension_index |
| __attribute__((packed)); |
| #else |
| unsigned int __glibc_reserved[2]; |
| #endif |
| } _ext; |
| } _u; |
| }; |
| |
| typedef struct __res_state *res_state; |
| |
| #endif /* __res_state_defined */ |
