/*
 * <netdb.h> for the MontaukOS git port.
 *
 * The port builds NO_IPV6=1, so git resolves names through gethostbyname()
 * and getservbyname() rather than getaddrinfo(). Both fail here: MontaukOS
 * resolves DNS inside the kernel network stack, and no userspace resolver
 * interface is exposed. `git clone git://host/repo` therefore reports that it
 * cannot look up the host. getaddrinfo() is still declared because
 * git-compat-util.h references the types unconditionally.
 *
 * Implementations in montauk-compat.c.
 */
#ifndef _MONTAUK_GIT_NETDB_H_
#define _MONTAUK_GIT_NETDB_H_

#include <sys/socket.h>
#include <netinet/in.h>

struct hostent {
	char  *h_name;
	char **h_aliases;
	int    h_addrtype;
	int    h_length;
	char **h_addr_list;
};

#define h_addr h_addr_list[0]

struct servent {
	char  *s_name;
	char **s_aliases;
	int    s_port;
	char  *s_proto;
};

struct addrinfo {
	int              ai_flags;
	int              ai_family;
	int              ai_socktype;
	int              ai_protocol;
	socklen_t        ai_addrlen;
	struct sockaddr *ai_addr;
	char            *ai_canonname;
	struct addrinfo *ai_next;
};

#define AI_PASSIVE     0x0001
#define AI_CANONNAME   0x0002
#define AI_NUMERICHOST 0x0004
#define AI_NUMERICSERV 0x0400

#define NI_MAXHOST    1025
#define NI_MAXSERV    32
#define NI_NUMERICHOST 1
#define NI_NUMERICSERV 2
#define NI_NAMEREQD    8

#define EAI_NONAME  -2
#define EAI_AGAIN   -3
#define EAI_FAIL    -4
#define EAI_FAMILY  -6
#define EAI_SYSTEM  -11

#define HOST_NOT_FOUND 1
#define TRY_AGAIN      2
#define NO_RECOVERY    3
#define NO_DATA        4

extern int h_errno;

struct hostent *gethostbyname(const char *name);
struct servent *getservbyname(const char *name, const char *proto);

int  getaddrinfo(const char *node, const char *service,
                 const struct addrinfo *hints, struct addrinfo **res);
void freeaddrinfo(struct addrinfo *res);
int  getnameinfo(const struct sockaddr *sa, socklen_t salen,
                 char *host, socklen_t hostlen,
                 char *serv, socklen_t servlen, int flags);
const char *gai_strerror(int errcode);

#endif /* _MONTAUK_GIT_NETDB_H_ */