gethostbydns.c File Reference

#include <sys/cdefs.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <arpa/nameser.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <netdb.h>
#include <resolv.h>
#include <ctype.h>
#include <errno.h>
#include <syslog.h>
#include "res_config.h"

Include dependency graph for gethostbydns.c:

Data Structures
union	querybuf
union	align

Macros
#define	SPRINTF(x)   ((size_t)sprintf x)
#define	MAXALIASES   35
#define	MAXADDRS   35
#define	MAXPACKET   1024
#define	BOUNDED_INCR(x)
#define	BOUNDS_CHECK(ptr, count)

Functions
void	abort (void)
struct hostent *	_gethostbydnsname (const char *name, int af)
struct hostent *	_gethostbydnsaddr (const char *addr, int len, int af)
void	_sethostdnsent (int stayopen)
void	_endhostdnsent (void)

Variables
int	h_errno
int	_dns_ttl_

Macro Definition Documentation

BOUNDED_INCR

#define BOUNDED_INCR

(

x

)

Value:

do { \
                cp += x; \
                if (cp > eom) { \
                        h_errno = NO_RECOVERY; \
                        return (NULL); \
                } \
        } while (0)

BOUNDS_CHECK

#define BOUNDS_CHECK	(		ptr,
			count
	)

Value:

do { \
                if ((ptr) + (count) > eom) { \
                        h_errno = NO_RECOVERY; \
                        return (NULL); \
                } \
        } while (0)