netdb.h

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/* Simple gethostbyname and gethostbyaddr replacements, note not thread safe */
#ifndef __NETDB_H__
#define __NETDB_H__
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define NETDB_INTERNAL  -1      /* see errno */
#define NETDB_SUCCESS   0       /* no problem */
#define HOST_NOT_FOUND  1 /* Authoritative Answer Host not found */
#define TRY_AGAIN       2 /* Non-Authoritative Host not found, or SERVERFAIL */
#define NO_RECOVERY     3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
#define NO_DATA         4 /* Valid name, no data record of requested type */
#define NO_ADDRESS      NO_DATA         /* no address, look for MX record */
 
extern int h_errno;
 
struct hostent
{
        char *h_name;
        char **h_aliases;
        int  h_addrtype;
        int  h_length;
        char **h_addr_list;
        char *h_addr;
};
 
struct hostent *gethostbyaddr(const void *addr, int len, int type);
struct hostent *gethostbyname(const char *name);
 
#ifdef __cplusplus
}
#endif
 
#endif