在 ubuntu 上编译 rpcgen 程序

Posted 2023-02-16

【中文标题】在 ubuntu 上编译 rpcgen 程序

【英文标题】：compile rpcgen program on ubuntu

【发布时间】：2012-12-04 04:33:22

【问题描述】：

我是 rpcgen 编程的新手。 在 ubuntu 上编译以下示例 rpcgen 示例时出现错误。主要功能是计算给定数字的平方

正方形.X

struct square_in 
 long arg1;
 ;

struct square_out 
long    res1;
;

program SQUARE_PROG 
version SQUARE_VERS 
square_out  SQUAREPROC(square_in) = 1;
                    /* procedure number = 1 */
 = 1;              /* version number = 1 */
 = 0x31230000;         /* program number = 0x31230000 */

client.c

  #include  <rpc/rpc.h>
  #include  "square.h"

int
main(int argc, char **argv)
  
CLIENT      *cl;
square_in   in;
square_out  *outp;

if (argc != 3)
    //err_quit("usage: client <hostname> <integer-value>");
    exit(0);

cl = clnt_create(argv[1], SQUARE_PROG, SQUARE_VERS, "tcp");

in.arg1 = atol(argv[2]);
if ( (outp = squareproc_1(&in, cl)) == NULL)
    //err_quit("%s", clnt_sperror(cl, argv[1]));
   exit(0);

printf("result: %ld\n", outp->res1);
exit(0);
 

服务器.c

#include    <rpc/rpc.h>
#include    "square.h"
#include <stdio.h>


     square_out *
    squareproc_1_svc(square_in *inp, struct svc_req *rqstp)
     
static square_out   out;

printf("thread %d started, arg = %ld\n",
       pr_thread_id(NULL), inp->arg1);
sleep(5);
out.res1 = inp->arg1 * inp->arg1;
printf("thread %d done\n", pr_thread_id(NULL));

return(&out);
       

制作文件：

PROGS = client server
CFLAGS += -DDEBUG

all:    $PROGS

square.h square_clnt.c square_svc.c square_xdr.c:   square.x
            rpcgen -C square.x

square_clnt.o: square_clnt.c square.h

square_svc.o: square_svc.c square.h

client: square.h client.o square_clnt.o square_xdr.o
            $CC $CFLAGS -o $@ client.o square_clnt.o square_xdr.o \
                $LIBS $LIBS_RPC

server: square.h server.o square_svc.o square_xdr.o
            $CC $CFLAGS -o $@ server.o square_svc.o square_xdr.o \
                $LIBS $LIBS_RPC

clean:
        rm -f $PROGS $CLEANFILES *_clnt.c *_svc.c *_xdr.c square.h

在执行时，我收到以下错误：

cc -DDEBUG   -c -o client.o client.c
cc -DDEBUG -o client client.o square_clnt.o square_xdr.o \

cc -DDEBUG   -c -o server.o server.c
cc -DDEBUG -o server server.o square_svc.o square_xdr.o \

server.o: In function `squareproc_1_svc':
server.c:(.text+0x14): undefined reference to `pr_thread_id'
server.c:(.text+0x52): undefined reference to `pr_thread_id'
collect2: error: ld returned 1 exit status
make: *** [server] Error 1

【参考方案1】：

像这样使用服务器文件

// SERVER FILE: server.c

#include"rpc/rpc.h"
#include"square.h"
#include"stdio.h"
#include"stdlib.h"
#include"math.h"

square_out *squareproc_1_svc(square_in *inp,struct svc_req *rqstp)


    static square_out out;
    out.res1 = inp->arg1 * inp->arg1;
    return(&out);

并使用

运行程序

[root@localhost ~]# rpcgen -C square.x
[root@localhost ~]# cc -c client.c -o client.o
[root@localhost ~]# cc -c square_clnt.c -o square_clnt.o
[root@localhost ~]# cc -c square_xdr.c -o square_xdr.o
[root@localhost ~]# cc -o client client.o square_clnt.o square_xdr.o
[root@localhost ~]# cc -c client.c server.c square_xdr.c
[root@localhost ~]# cc -c server.c -o server.o
[root@localhost ~]# cc -c square_svc.c -o square_svc.o
[root@localhost ~]# cc -o server server.o square_svc.o square_xdr.o
[root@localhost ~]# ./server &

[1] 3334

[root@localhost ~]# ./client localhost 4

result is : 16

【参考方案2】：

我认为您不需要使用pr_thread_id。尝试不使用它进行编译。