Specifications

Page 34 Remote Procedure Call Programming Guide
fprintf(stderr, "client got callback\n");
if (!svc_sendreply(transp, xdr_void, 0)) {
fprintf(stderr, "err: exampleprog");
return (1);
}
}
}
/*
* server
*/
#include <stdio.h>
#include <rpc/rpc.h>
#include <sys/signal.h>
char *getnewprog();
char hostname[256];
int docallback();
int pnum; /* program number for callback routine */
main()
{
gethostname(hostname, sizeof(hostname));
registerrpc(EXAMPLEPROG, EXAMPLEVERS,
EXAMPLEPROC_CALLBACK, getnewprog, xdr_int, xdr_void);
fprintf(stderr, "server going into svc_run\n");
signal(SIGALRM, docallback);
alarm(10);
svc_run();
fprintf(stderr, "Error: svc_run shouldn’t return\n");
}
char *
getnewprog(pnump)
char *pnump;
{
pnum = *(int *)pnump;
return NULL;
}
docallback()
{
int ans;
ans = callrpc(hostname, pnum, 1, 1, xdr_void, 0,
xdr_void, 0);
if (ans != 0) {
fprintf(stderr, "server: ");
clnt_perrno(ans);
fprintf(stderr, "\n");
}
}