share/examples/sunrpc/dir/rls.c

   1 /* @(#)rls.c    2.2 88/08/12 4.0 RPCSRC */
   2 /*
   3  * rls.c: Remote directory listing client
   4  */
   5 #include <stdio.h>
   6 #include <rpc/rpc.h>            /* always need this */
   7 #include "dir.h"                /* need this too: will be generated by rpcgen*/
   8
   9 extern int errno;
  10
  11 main(argc, argv)
  12         int argc;
  13         char *argv[];
  14 {
  15         CLIENT *cl;
  16         char *server;
  17         char *dir;
  18         readdir_res *result;
  19         namelist nl;
  20
  21
  22         if (argc != 3) {
  23                 fprintf(stderr, "usage: %s host directory\n", argv[0]);
  24                 exit(1);
  25         }
  26
  27         /*
  28          * Remember what our command line arguments refer to
  29          */
  30         server = argv[1];
  31         dir = argv[2];
  32
  33         /*
  34          * Create client "handle" used for calling DIRPROG on the
  35          * server designated on the command line. We tell the rpc package
  36          * to use the "tcp" protocol when contacting the server.
  37          */
  38         cl = clnt_create(server, DIRPROG, DIRVERS, "tcp");
  39         if (cl == NULL) {
  40                 /*
  41                  * Couldn't establish connection with server.
  42                  * Print error message and die.
  43                  */
  44                 clnt_pcreateerror(server);
  45                 exit(1);
  46         }
  47
  48         /*
  49          * Call the remote procedure "readdir" on the server
  50          */
  51         result = readdir_1(&dir, cl);
  52         if (result == NULL) {
  53                 /*
  54                  * An error occurred while calling the server.
  55                  * Print error message and die.
  56                  */
  57                 clnt_perror(cl, server);
  58                 exit(1);
  59         }
  60
  61         /*
  62          * Okay, we successfully called the remote procedure.
  63          */
  64         if (result->errno != 0) {
  65                 /*
  66                  * A remote system error occurred.
  67                  * Print error message and die.
  68                  */
  69                 errno = result->errno;
  70                 perror(dir);
  71                 exit(1);
  72         }
  73
  74         /*
  75          * Successfuly got a directory listing.
  76          * Print it out.
  77          */
  78         for (nl = result->readdir_res_u.list; nl != NULL; nl = nl->next) {
  79                 printf("%s\n", nl->name);
  80         }
  81 }