Article View: es.comp.os.linux.programacion
Article #12547Re: resolucion inversa desde script
From: J.A. Gutierrez
Date: Thu, 21 Jun 2001 10:43
Date: Thu, 21 Jun 2001 10:43
64 lines
2288 bytes
2288 bytes
Oscar Lopez <yo@yo.es> wrote:
: Como se podria hacer esto desde bash? hay algun parametro para netstat que
: permita la ejecucion de comandos en desatendido? o alguna solucion similar
: vaya!
netstat???
nslookup
nslookup 169.69.169.69 | sed -e '/^Name:/!d' -e 's/^Name:[ ]*//'
o bien:
- ghost.c -----------------------------------------------------------------
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <errno.h>
#ifndef INADDR_NONE
# define INADDR_NONE (in_addr_t)-1
#endif
int main(int argc, char *argv[])
{
struct hostent *hp;
u_long add;
if ( (argc!=2) ||
(INADDR_NONE == (add = inet_addr(argv[1]))))
{
fprintf( stderr,"uso: %s ip\n", argv[0] );
exit(1);
}
if ( NULL == ( hp = gethostbyaddr((void *)&add, sizeof(add),AF_INET)))
{
perror("gethostbyaddr: can't get host");
exit(2);
}
else
{
puts(hp->h_name);
}
exit (0);
}
---------------------------------------------------------------------------
--
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From: "J.A. Gutierrez" <spd@daphne.cps.unizar.es>
Newsgroups: es.comp.os.linux.programacion
Subject: Re: resolucion inversa desde script
Date: 21 Jun 2001 10:43:08 GMT
Organization: Rank
Lines: 64
Message-ID: <9gsj3s$8ka$1@news.unizar.es>
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