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				synced 2025-10-30 10:45:40 +03:00 
			
		
		
		
	The new __libc_rpc_gethostbyname function calls gethostbyname2_r
with an AF_INET argument and is therefore not affected by the
RES_USE_INET6 flag.
Validated with the following test program, with and without
RES_OPTIONS=inet6, against a NFS server.  (Link with -lrpcsvc.)
#include <rpc/clnt.h>
#include <rpcsvc/mount.h>
#include <stdio.h>
#include <string.h>
static void
usage (char **argv)
{
  printf ("usage:\n"
          "  %1$s HOST getrpcport\n"
          "  %1$s HOST callrpc\n"
          "  %1$s HOST clnt_create\n",
          argv[0]);
}
static void
dump_exports (struct exportnode *exports)
{
  while (exports != NULL)
    {
      printf ("%s\n", exports->ex_dir);
      exports = exports->ex_next;
    }
}
int
main (int argc, char **argv)
{
  if (argc != 3)
    {
      usage (argv);
      return 1;
    }
  const char *host = argv[1];
  const char *command = argv[2];
  if (strcmp (command, "getrpcport") == 0)
    {
      int port = getrpcport (host, MOUNTPROG, MOUNTVERS, IPPROTO_UDP);
      printf ("getrpcport: %d\n", port);
    }
  else if (strcmp (command, "callrpc") == 0)
    {
      struct exportnode *exports = NULL;
      int ret = callrpc (host, MOUNTPROG, MOUNTVERS, MOUNTPROC_EXPORT,
                         (xdrproc_t) xdr_void, NULL,
                         (xdrproc_t) xdr_exports, (char *)&exports);
      if (ret != 0)
        {
          clnt_perrno (ret);
          puts ("");
          return 1;
        }
      dump_exports (exports);
    }
  else if (strcmp (command, "clnt_create") == 0)
    {
      CLIENT *client = clnt_create
        (host, MOUNTPROG, MOUNTVERS, "udp");
      if (client == NULL)
        {
          printf ("error: clnt_create failed\n");
          return 1;
        }
      struct exportnode *exports = NULL;
      int ret = CLNT_CALL (client, MOUNTPROC_EXPORT,
                           (xdrproc_t) xdr_void, NULL,
                           (xdrproc_t) xdr_exports, (char *)&exports,
                           ((struct timeval) {15, 0}));
      if (ret != 0)
        {
          clnt_perrno (ret);
          puts ("");
          return 1;
        }
      dump_exports (exports);
    }
  else
    {
      usage (argv);
      return 1;
    }
  return 0;
}
		
	
		
			
				
	
	
		
			70 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			70 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| #ifndef _RPC_RPC_H
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| #include <sunrpc/rpc/rpc.h>
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| 
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| # ifndef _ISOMAC
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| 
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| #include <libc-tsd.h>
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| 
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| /* Now define the internal interfaces.  */
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| extern unsigned long _create_xid (void);
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| 
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| /*
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|  * Multi-threaded support
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|  * Group all global and static variables into a single spot.
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|  * This area is allocated on a per-thread basis
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|  */
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| #ifdef _RPC_THREAD_SAFE_
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| struct rpc_thread_variables {
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| 	fd_set		svc_fdset_s;		/* Global, rpc_common.c */
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| 	struct rpc_createerr rpc_createerr_s;	/* Global, rpc_common.c */
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| 	struct pollfd	*svc_pollfd_s;		/* Global, rpc_common.c */
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| 	int		svc_max_pollfd_s;	/* Global, rpc_common.c */
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| 
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| 	char		*clnt_perr_buf_s;	/* clnt_perr.c */
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| 
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| 	struct clntraw_private_s *clntraw_private_s;	/* clnt_raw.c */
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| 
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| 	struct callrpc_private_s *callrpc_private_s;	/* clnt_simp.c */
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| 
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| 	struct key_call_private *key_call_private_s;	/* key_call.c */
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| 
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| 	struct cache_entry *authdes_cache_s;	/* svcauth_des.c */
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| 	int		*authdes_lru_s;		/* svcauth_des.c */
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| 
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| 	SVCXPRT		**svc_xports_s;		/* svc.c */
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| 	struct svc_callout *svc_head_s;		/* svc.c */
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| 
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| 	struct svcraw_private_s *svcraw_private_s;	/* svc_raw.c */
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| 
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| 	struct proglst_ *svcsimple_proglst_s;	/* svc_simple.c */
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| 	SVCXPRT		*svcsimple_transp_s;	/* svc_simple.c */
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| };
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| 
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| extern struct rpc_thread_variables *__rpc_thread_variables(void)
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|      __attribute__ ((const));
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| extern void __rpc_thread_svc_cleanup (void);
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| extern void __rpc_thread_clnt_cleanup (void);
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| extern void __rpc_thread_key_cleanup (void);
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| 
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| extern void __rpc_thread_destroy (void);
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| 
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| __libc_tsd_define (extern, struct rpc_thread_variables *, RPC_VARS)
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| 
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| #define RPC_THREAD_VARIABLE(x) (__rpc_thread_variables()->x)
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| 
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| libc_hidden_proto (__rpc_thread_svc_max_pollfd)
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| libc_hidden_proto (__rpc_thread_svc_pollfd)
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| libc_hidden_proto (__rpc_thread_svc_fdset)
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| libc_hidden_proto (__rpc_thread_createerr)
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| 
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| /* Perform a host name lookup for NAME and return the first IPv4
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|    address in *ADDR.  Return 0 on success and -1 on error (and set an
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|    RPC error).  */
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| int __libc_rpc_gethostbyname (const char *host, struct sockaddr_in *addr)
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|   attribute_hidden;
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| 
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| #endif /* _RPC_THREAD_SAFE_ */
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| 
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| # endif /* !_ISOMAC */
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| #endif
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