/* @(#)svc_simple.c 2.2 88/08/01 4.0 RPCSRC */ /* * Sun RPC is a product of Sun Microsystems, Inc. and is provided for * unrestricted use provided that this legend is included on all tape * media and as a part of the software program in whole or part. Users * may copy or modify Sun RPC without charge, but are not authorized * to license or distribute it to anyone else except as part of a product or * program developed by the user. * * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. * * Sun RPC is provided with no support and without any obligation on the * part of Sun Microsystems, Inc. to assist in its use, correction, * modification or enhancement. * * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC * OR ANY PART THEREOF. * * In no event will Sun Microsystems, Inc. be liable for any lost revenue * or profits or other special, indirect and consequential damages, even if * Sun has been advised of the possibility of such damages. * * Sun Microsystems, Inc. * 2550 Garcia Avenue * Mountain View, California 94043 */ #if 0 static char sccsid[] = "@(#)svc_simple.c 1.18 87/08/11 Copyr 1984 Sun Micro"; #endif /* * svc_simple.c * Simplified front end to rpc. * * Copyright (C) 1984, Sun Microsystems, Inc. */ #define __FORCE_GLIBC #include <features.h> #include <stdio.h> #include <string.h> #include <unistd.h> #include "rpc_private.h" #include <rpc/pmap_clnt.h> #include <sys/socket.h> #include <netdb.h> #ifdef USE_IN_LIBIO # include <wchar.h> # include <libio/iolibio.h> # define fputs(s, f) _IO_fputs (s, f) #endif libc_hidden_proto(strdup) libc_hidden_proto(memset) libc_hidden_proto(asprintf) libc_hidden_proto(fputs) libc_hidden_proto(write) libc_hidden_proto(exit) libc_hidden_proto(svc_sendreply) libc_hidden_proto(svc_register) libc_hidden_proto(svcerr_decode) libc_hidden_proto(svcudp_create) libc_hidden_proto(pmap_unset) libc_hidden_proto(xdr_void) struct proglst_ { char *(*p_progname) (char *); int p_prognum; int p_procnum; xdrproc_t p_inproc, p_outproc; struct proglst_ *p_nxt; }; #ifdef __UCLIBC_HAS_THREADS__ #define proglst (*(struct proglst_ **)&RPC_THREAD_VARIABLE(svcsimple_proglst_s)) #else static struct proglst_ *proglst; #endif static void universal (struct svc_req *rqstp, SVCXPRT *transp_s); #ifdef __UCLIBC_HAS_THREADS__ #define transp (*(SVCXPRT **)&RPC_THREAD_VARIABLE(svcsimple_transp_s)) #else static SVCXPRT *transp; #endif int registerrpc (u_long prognum, u_long versnum, u_long procnum, char *(*progname) (char *), xdrproc_t inproc, xdrproc_t outproc) { struct proglst_ *pl; char *buf; if (procnum == NULLPROC) { (void) asprintf (&buf, _("can't reassign procedure number %ld\n"), NULLPROC); goto err_out; } if (transp == 0) { transp = svcudp_create (RPC_ANYSOCK); if (transp == NULL) { buf = strdup (_("couldn't create an rpc server\n")); goto err_out; } } (void) pmap_unset ((u_long) prognum, (u_long) versnum); if (!svc_register (transp, (u_long) prognum, (u_long) versnum, universal, IPPROTO_UDP)) { (void) asprintf (&buf, _("couldn't register prog %ld vers %ld\n"), prognum, versnum); goto err_out; } pl = (struct proglst_ *) malloc (sizeof (struct proglst_)); if (pl == NULL) { buf = strdup (_("registerrpc: out of memory\n")); goto err_out; } pl->p_progname = progname; pl->p_prognum = prognum; pl->p_procnum = procnum; pl->p_inproc = inproc; pl->p_outproc = outproc; pl->p_nxt = proglst; proglst = pl; return 0; err_out: #ifdef USE_IN_LIBIO if (_IO_fwide (stderr, 0) > 0) (void) __fwprintf (stderr, L"%s", buf); else #endif (void) fputs (buf, stderr); free (buf); return -1; } static void universal (struct svc_req *rqstp, SVCXPRT *transp_l) { int prog, proc; char *outdata; char xdrbuf[UDPMSGSIZE]; struct proglst_ *pl; char *buf = NULL; /* * enforce "procnum 0 is echo" convention */ if (rqstp->rq_proc == NULLPROC) { if (svc_sendreply (transp_l, (xdrproc_t)xdr_void, (char *) NULL) == FALSE) { write (STDERR_FILENO, "xxx\n", 4); exit (1); } return; } prog = rqstp->rq_prog; proc = rqstp->rq_proc; for (pl = proglst; pl != NULL; pl = pl->p_nxt) if (pl->p_prognum == prog && pl->p_procnum == proc) { /* decode arguments into a CLEAN buffer */ memset (xdrbuf, 0, sizeof (xdrbuf)); /* required ! */ if (!svc_getargs (transp_l, pl->p_inproc, xdrbuf)) { svcerr_decode (transp_l); return; } outdata = (*(pl->p_progname)) (xdrbuf); if (outdata == NULL && pl->p_outproc != (xdrproc_t)xdr_void) /* there was an error */ return; if (!svc_sendreply (transp_l, pl->p_outproc, outdata)) { (void) asprintf (&buf, _("trouble replying to prog %d\n"), pl->p_prognum); exit (1); } /* free the decoded arguments */ (void) svc_freeargs (transp_l, pl->p_inproc, xdrbuf); return; } (void) asprintf (&buf, _("never registered prog %d\n"), prog); #ifdef USE_IN_LIBIO if (_IO_fwide (stderr, 0) > 0) __fwprintf (stderr, L"%s", buf); else #endif fputs (buf, stderr); free (buf); exit (1); }