vlmcsd/resolv_static.h
2015-11-29 17:30:52 +08:00

33 lines
898 B
C

#ifndef _RESOLV_STATIC_H
#define _RESOLV_STATIC_H
#include <netdb.h>
/* this structure contains all the variables that were declared
* 'static' in the original NetBSD resolver code.
*
* this caused vast amounts of crashes and memory corruptions
* when the resolver was being used by multiple threads.
*
* (note: the OpenBSD/FreeBSD resolver has similar 'issues')
*/
#define MAXALIASES 35
#define MAXADDRS 35
typedef struct res_static {
char* h_addr_ptrs[MAXADDRS + 1];
char* host_aliases[MAXALIASES];
char hostbuf[8*1024];
u_int32_t host_addr[16 / sizeof(u_int32_t)]; /* IPv4 or IPv6 */
FILE* hostf;
int stayopen;
const char* servent_ptr;
struct servent servent;
struct hostent host;
} *res_static;
extern res_static __res_get_static(void);
#endif /* _RESOLV_STATIC_H */