Prototype Declaration Error in RPC

[Siddarth777]

Hi,
I am writing a sample RPC program in C language using RPCGEN tool in my UBUNTU 12.04, when i have finished writing my client and server codes, and when i compile the complete project using a makefile i get error in my server code

i encounter the following errors

gcc -c -o svc_proc.o -g -Wall svc_proc.c
svc_proc.c: In function ‘greetings_1_svc’:
svc_proc.c:4:1: error: number of arguments doesn’t match prototype
helloworld.h:23:15: error: prototype declaration
svc_proc.c:8:2: warning: function returns address of local variable [enabled by default]
make: *** [svc_proc.o] Error 1


The codes of my server and helloworld.h files are

helloworld.h

/*
 * Please do not edit this file.
 * It was generated using rpcgen.
 */
 
#ifndef _HELLOWORLD_H_RPCGEN
#define _HELLOWORLD_H_RPCGEN
 
#include <rpc/rpc.h>
 
 
#ifdef __cplusplus
extern "C" {
#endif
 
 
#define HELLOWORLD 0x2fffffff
#define HELLOWORLD_V1 1
 
#if defined(__STDC__) || defined(__cplusplus)
#define greetings 1
extern  int * greetings_1(void *, CLIENT *);
extern  int * greetings_1_svc(void *, struct svc_req *);
extern int helloworld_1_freeresult (SVCXPRT *, xdrproc_t, caddr_t);
 
#else /* K&R C */
#define greetings 1
extern  int * greetings_1();
extern  int * greetings_1_svc();
extern int helloworld_1_freeresult ();
#endif /* K&R C */
 
#ifdef __cplusplus
}
#endif
 
#endif /* !_HELLOWORLD_H_RPCGEN */
 

svc_proc.c

#include"helloworld.h"
 
// This is the SERVER Code
 
int* greetings_1_svc()
{
    int i=0;
    printf("This is your OWN RPC");
    return &i;
}
 

please tell me where i am going wrong, thanks a lot in advance


Siddarth

[weaknessforcats]

You have declred your function in helloworld.h as:

extern  int * greetings_1_svc(void *, struct svc_req *);

The actual code is:

int* greetings_1_svc()
 

etc...

The function and the prototype have to match. Clearly they do not.

BTW: greetings_1_svc is returning the addres of an int that is a local variable. Be aware that by the time you use the address that is returned, the variable will have been destroyed and your program will crash.