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    The following form allows you to view linux man pages.

    Command:

    getipnodebyaddr

    
    
    
    

    SYNOPSIS

           #include <sys/types.h>
           #include <sys/socket.h>
           #include <netdb.h>
    
           struct hostent *getipnodebyname(const char *name, int af,
                                           int flags, int *error_num);
    
           struct hostent *getipnodebyaddr(const void *addr, size_t len,
                                           int af, int *error_num);
    
           void freehostent(struct hostent *ip);
    
    
    

    DESCRIPTION

           These functions are deprecated (and unavailable in glibc).  Use  getad-
           drinfo(3) and getnameinfo(3) instead.
    
           The  getipnodebyname() and getipnodebyaddr() functions return the names
           and addresses of a network host.  These functions return a  pointer  to
           the following structure:
    
               struct hostent {
                   char  *h_name;
                   char **h_aliases;
                   int    h_addrtype;
                   int    h_length;
                   char **h_addr_list;
               };
    
           These functions replace the gethostbyname(3) and gethostbyaddr(3) func-
           tions, which could access only the IPv4 network  address  family.   The
           getipnodebyname()  and  getipnodebyaddr() functions can access multiple
           network address families.
    
           Unlike the gethostby functions,  these  functions  return  pointers  to
           dynamically  allocated  memory.   The freehostent() function is used to
           release the dynamically allocated memory after  the  caller  no  longer
           needs the hostent structure.
    
       getipnodebyname() arguments
           The  getipnodebyname() function looks up network addresses for the host
           specified by the name argument.  The af argument specifies one  of  the
           following values:
    
           AF_INET
                  The name argument points to a dotted-quad IPv4 address or a name
                  of an IPv4 network host.
    
           AF_INET6
                  The name argument points to a hexadecimal IPv6 address or a name
                  of an IPv6 network host.
    
           AI_ADDRCONFIG
                  This  flag is used with AF_INET6 to further request that queries
                  for IPv6 addresses should not be made unless the system  has  at
                  least one IPv6 address assigned to a network interface, and that
                  queries for IPv4 addresses should not be made unless the  system
                  has  at  least one IPv4 address assigned to a network interface.
                  This flag may be used by itself or with the AI_V4MAPPED flag.
    
           AI_DEFAULT
                  This flag is equivalent to (AI_ADDRCONFIG | AI_V4MAPPED).
    
       getipnodebyaddr() arguments
           The getipnodebyaddr() function looks up the name of the host whose net-
           work address is specified by the addr argument.  The af argument speci-
           fies one of the following values:
    
           AF_INET
                  The addr argument points to a struct in_addr and len must be set
                  to sizeof(struct in_addr).
    
           AF_INET6
                  The  addr  argument  points to a struct in6_addr and len must be
                  set to sizeof(struct in6_addr).
    
    
    

    RETURN VALUE

           NULL is returned if an error occurred, and error_num  will  contain  an
           error code from the following list:
    
           HOST_NOT_FOUND
                  The hostname or network address was not found.
    
           NO_ADDRESS
                  The  domain  name server recognized the network address or name,
                  but no answer was returned.  This can happen if the network host
                  has  only  IPv4  addresses  and a request has been made for IPv6
                  information only, or vice versa.
    
           NO_RECOVERY
                  The domain name server returned a permanent failure response.
    
           TRY_AGAIN
                  The domain name server returned a  temporary  failure  response.
                  You might have better luck next time.
    
           A  successful  query returns a pointer to a hostent structure that con-
           tains the following fields:
    
           h_name This is the official name of this network host.
    
           h_aliases
                  This is an array of pointers to unofficial aliases for the  same
                  host.  The array is terminated by a null pointer.
                  structures  for  the network host.  The array is terminated by a
                  null pointer.
    
    
    

    CONFORMING TO

           RFC 2553.
    
    
    

    NOTES

           These functions were present  in  glibc  2.1.91-95,  but  were  removed
           again.   Several UNIX-like systems support them, but all call them dep-
           recated.
    
    
    

    SEE ALSO

           getaddrinfo(3), getnameinfo(3), inet_ntop(3), inet_pton(3)
    
    
    

    Linux 2010-09-04 GETIPNODEBYNAME(3)

    
    
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