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program TESTPROG{
        version VERSION{
                int int_echo(int)=1;
                int get_str_len(string)=2;
                int add ( int, int ) = 3;
        }=1;
}=30000;

rpcgen -a -N test.x

# This is a template Makefile generated by rpcgen
# Parameters
CLIENT = test_client
SERVER = test_server
SOURCES_CLNT.c =
SOURCES_CLNT.h =
SOURCES_SVC.c =
SOURCES_SVC.h =
SOURCES.x = test.x
TARGETS_SVC.c = test_svc.c test_server.c test_xdr.c
TARGETS_CLNT.c = test_clnt.c test_client.c test_xdr.c
TARGETS = test.h test_xdr.c test_clnt.c test_svc.c
OBJECTS_CLNT = $(SOURCES_CLNT.c:%.c=%.o) $(TARGETS_CLNT.c:%.c=%.o)
OBJECTS_SVC = $(SOURCES_SVC.c:%.c=%.o) $(TARGETS_SVC.c:%.c=%.o)
# Compiler flags
CFLAGS += -g -pipe
LDLIBS += -lnsl
RPCGENFLAGS = -N
# Targets
all : $(CLIENT) $(SERVER)
$(TARGETS) : $(SOURCES.x)
        rpcgen $(RPCGENFLAGS) $(SOURCES.x)
$(OBJECTS_CLNT) : $(SOURCES_CLNT.c) $(SOURCES_CLNT.h) $(TARGETS_CLNT.c)
$(OBJECTS_SVC) : $(SOURCES_SVC.c) $(SOURCES_SVC.h) $(TARGETS_SVC.c)
$(CLIENT) : $(OBJECTS_CLNT)
        $(LINK.c) -o $(CLIENT) $(OBJECTS_CLNT) $(LDLIBS)
$(SERVER) : $(OBJECTS_SVC)
        $(LINK.c) -o $(SERVER) $(OBJECTS_SVC) $(LDLIBS)
clean:
         $(RM) core $(TARGETS) $(OBJECTS_CLNT) $(OBJECTS_SVC) $(CLIENT) $(SERVER)

/*
* This is sample code generated by rpcgen.
* These are only templates and you can use them
* as a guideline for developing your own functions.
*/
#include "test.h"
int *
int_echo_1_svc(int arg1,  struct svc_req *rqstp)
{
        static int  result;
        //echo.
        result=arg1;
        printf("[RPC1] source=%d, echo=%d\n", arg1, result);
        return &result;
}
int *
get_str_len_1_svc(char *arg1,  struct svc_req *rqstp)
{
        static int  result;
        //get strlen.
        result=strlen(arg1);
        printf("[PRC2] str=%s, len=%d\n", arg1, result);
        return &result;
}
int *
add_1_svc(int arg1, int arg2,  struct svc_req *rqstp)
{
        static int  result;
        result=arg1+arg2;
        printf("[RPC3] %d+%d=%d\n", arg1, arg2, result);
        return &result;
}

/*
* This is sample code generated by rpcgen.
* These are only templates and you can use them
* as a guideline for developing your own functions.
*/
#include "test.h"
void
testprog_1(char *host)
{
        CLIENT *clnt;
        int  *result_1;
        int int_echo_1_arg1=55;
        int  *result_2;
        char *get_str_len_1_arg1="Hello, world";
        int  *result_3;
        int add_1_arg1=10;
        int add_1_arg2=20;
        clnt = clnt_create (host, TESTPROG, VERSION, "udp");
        if (clnt == NULL) {
                clnt_pcreateerror (host);
                exit (1);
        }
        result_1 = int_echo_1(int_echo_1_arg1, clnt);
        if (result_1 == (int *) NULL) {
                clnt_perror (clnt, "call failed");
        }
        else
                printf("[PRC1] echo %d, source %d\n", *result_1,
                        int_echo_1_arg1);
        result_2 = get_str_len_1(get_str_len_1_arg1, clnt);
        if (result_2 == (int *) NULL) {
                clnt_perror (clnt, "call failed");
        }
        else
                printf("[RPC2] return %d, should %d\n", *result_2,
                        strlen(get_str_len_1_arg1));
        result_3 = add_1(add_1_arg1, add_1_arg2, clnt);
        if (result_3 == (int *) NULL) {
                clnt_perror (clnt, "call failed");
        }
        else
                printf("[PRC3] %d+%d=%d\n", add_1_arg1, add_1_arg2,
                        *result_3);
        clnt_destroy (clnt);
}

$rpcinfo -p 127.0.0.1
program vers proto port
100000 2 tcp 111 portmapper
30000 1 udp 36307
30000 1 tcp 34883
Bingo! 启动成功.

./test_client 127.0.0.1
[PRC1] echo 55, source 55
[RPC2] return 12, should 12
[PRC3] 10+20=30

make -f Makefile.test