freebsd-dev/usr.bin/rpcgen/rpc_svcout.c

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/*
* 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
*/
#ident "@(#)rpc_svcout.c 1.4 90/04/13 SMI"
#ifndef lint
2001-07-19 01:39:12 +00:00
#if 0
static char sccsid[] = "@(#)rpc_svcout.c 1.29 89/03/30 (C) 1987 SMI";
#endif
2001-07-19 01:39:12 +00:00
static const char rcsid[] =
"$FreeBSD$";
#endif
/*
* rpc_svcout.c, Server-skeleton outputter for the RPC protocol compiler
* Copyright (C) 1987, Sun Microsystems, Inc.
*/
#include <stdio.h>
#include <string.h>
#include "rpc_parse.h"
#include "rpc_util.h"
static char RQSTP[] = "rqstp";
static char TRANSP[] = "transp";
static char ARG[] = "argument";
static char RESULT[] = "result";
static char ROUTINE[] = "local";
static char RETVAL[] = "retval";
char _errbuf[256]; /* For all messages */
2002-03-22 01:33:25 +00:00
void internal_proctype( proc_list * );
static void write_real_program( definition * );
static void write_program( definition *, char * );
static void printerr( char *, char * );
static void printif( char *, char *, char *, char * );
static void write_inetmost( char * );
static void print_return( char * );
static void print_pmapunset( char * );
static void print_err_message( char * );
static void write_timeout_func( void );
static void write_pm_most( char *, int );
static void write_rpc_svc_fg( char *, char * );
static void open_log_file( char *, char * );
static void write_msg_out( void );
int nullproc( proc_list * );
static void
p_xdrfunc(rname, typename)
char* rname;
char* typename;
{
if (Cflag)
f_print(fout, "\t\txdr_%s = (xdrproc_t) xdr_%s;\n",
rname, stringfix(typename));
else
f_print(fout, "\t\txdr_%s = xdr_%s;\n",
rname, stringfix(typename));
}
void
internal_proctype(plist)
proc_list *plist;
{
f_print(fout, "static ");
ptype(plist->res_prefix, plist->res_type, 1);
f_print(fout, "*");
}
/*
1995-05-30 06:41:30 +00:00
* write most of the service, that is, everything but the registrations.
*/
void
write_most(infile, netflag, nomain)
char *infile; /* our name */
int netflag;
int nomain;
{
if (inetdflag || pmflag) {
char* var_type;
var_type = (nomain? "extern" : "static");
f_print(fout, "%s int _rpcpmstart;", var_type);
f_print(fout, "\t\t/* Started by a port monitor ? */\n");
if (!tirpcflag) {
f_print(fout, "%s int _rpcfdtype;", var_type);
f_print(fout, "\n\t\t /* Whether Stream or \
Datagram ? */\n");
}
if (timerflag) {
f_print(fout, " /* States a server can be in \
wrt request */\n\n");
f_print(fout, "#define\t_IDLE 0\n");
f_print(fout, "#define\t_SERVED 1\n");
f_print(fout, "#define\t_SERVING 2\n\n");
f_print(fout, "static int _rpcsvcstate = _IDLE;");
f_print(fout, "\t /* Set when a request is \
serviced */\n");
if (mtflag) {
f_print(fout, "mutex_t _svcstate_lock;");
f_print(fout, "\t\t\t/* Mutex lock for variable _rpcsvcstate */\n");
}
}
write_svc_aux(nomain);
}
/* write out dispatcher and stubs */
write_programs(nomain? (char *)NULL : "static");
if (nomain)
return;
f_print(fout, "\nmain()\n");
f_print(fout, "{\n");
if (inetdflag) {
write_inetmost(infile);
/* Includes call to write_rpc_svc_fg() */
} else {
if (tirpcflag) {
if (netflag) {
f_print(fout,
"\tregister SVCXPRT *%s;\n", TRANSP);
f_print(fout,
"\tstruct netconfig *nconf = NULL;\n");
}
f_print(fout, "\tpid_t pid;\n");
f_print(fout, "\tint i;\n");
f_print(fout, "\tchar mname[FMNAMESZ + 1];\n\n");
if (mtflag & timerflag)
f_print(fout, "\tmutex_init(&_svcstate_lock, USYNC_THREAD, NULL);\n");
write_pm_most(infile, netflag);
f_print(fout, "\telse {\n");
write_rpc_svc_fg(infile, "\t\t");
f_print(fout, "\t}\n");
} else {
f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP);
f_print(fout, "\n");
print_pmapunset("\t");
}
}
if (logflag && !inetdflag) {
open_log_file(infile, "\t");
}
}
/*
* write a registration for the given transport
*/
void
write_netid_register(transp)
char *transp;
{
list *l;
definition *def;
version_list *vp;
char *sp;
char tmpbuf[32];
sp = "";
f_print(fout, "\n");
f_print(fout, "%s\tnconf = getnetconfigent(\"%s\");\n", sp, transp);
f_print(fout, "%s\tif (nconf == NULL) {\n", sp);
(void) sprintf(_errbuf, "cannot find %s netid.", transp);
sprintf(tmpbuf, "%s\t\t", sp);
print_err_message(tmpbuf);
f_print(fout, "%s\t\texit(1);\n", sp);
f_print(fout, "%s\t}\n", sp);
f_print(fout, "%s\t%s = svc_tli_create(RPC_ANYFD, nconf, 0, 0, 0);\n",
1998-08-02 15:18:45 +00:00
sp, TRANSP);
f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP);
(void) sprintf(_errbuf, "cannot create %s service.", transp);
print_err_message(tmpbuf);
f_print(fout, "%s\t\texit(1);\n", sp);
f_print(fout, "%s\t}\n", sp);
for (l = defined; l != NULL; l = l->next) {
def = (definition *) l->val;
if (def->def_kind != DEF_PROGRAM) {
continue;
}
for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
f_print(fout,
"%s\t(void) rpcb_unset(%s, %s, nconf);\n",
sp, def->def_name, vp->vers_name);
f_print(fout,
"%s\tif (!svc_reg(%s, %s, %s, ",
sp, TRANSP, def->def_name, vp->vers_name);
pvname(def->def_name, vp->vers_num);
f_print(fout, ", nconf)) {\n");
(void) sprintf(_errbuf,
"unable to register (%s, %s, %s).",
def->def_name, vp->vers_name, transp);
print_err_message(tmpbuf);
f_print(fout, "%s\t\texit(1);\n", sp);
f_print(fout, "%s\t}\n", sp);
}
}
f_print(fout, "%s\tfreenetconfigent(nconf);\n", sp);
}
/*
* write a registration for the given transport for TLI
*/
void
write_nettype_register(transp)
char *transp;
{
list *l;
definition *def;
version_list *vp;
for (l = defined; l != NULL; l = l->next) {
def = (definition *) l->val;
if (def->def_kind != DEF_PROGRAM) {
continue;
}
for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
f_print(fout, "\tif (!svc_create(");
pvname(def->def_name, vp->vers_num);
f_print(fout, ", %s, %s, \"%s\")) {\n",
def->def_name, vp->vers_name, transp);
(void) sprintf(_errbuf,
"unable to create (%s, %s) for %s.",
def->def_name, vp->vers_name, transp);
print_err_message("\t\t");
f_print(fout, "\t\texit(1);\n");
f_print(fout, "\t}\n");
}
}
}
/*
1995-05-30 06:41:30 +00:00
* write the rest of the service
*/
void
write_rest()
{
f_print(fout, "\n");
if (inetdflag) {
f_print(fout, "\tif (%s == (SVCXPRT *)NULL) {\n", TRANSP);
(void) sprintf(_errbuf, "could not create a handle");
print_err_message("\t\t");
f_print(fout, "\t\texit(1);\n");
f_print(fout, "\t}\n");
if (timerflag) {
f_print(fout, "\tif (_rpcpmstart) {\n");
f_print(fout,
"\t\t(void) signal(SIGALRM, %s closedown);\n",
Cflag? "(SIG_PF)":"(void(*)())");
f_print(fout, "\t\t(void) \
alarm(_RPCSVC_CLOSEDOWN/2);\n");
f_print(fout, "\t}\n");
}
}
f_print(fout, "\tsvc_run();\n");
(void) sprintf(_errbuf, "svc_run returned");
print_err_message("\t");
f_print(fout, "\texit(1);\n");
f_print(fout, "\t/* NOTREACHED */\n");
f_print(fout, "}\n");
}
void
write_programs(storage)
char *storage;
{
list *l;
definition *def;
/* write out stubs for procedure definitions */
for (l = defined; l != NULL; l = l->next) {
def = (definition *) l->val;
if (def->def_kind == DEF_PROGRAM) {
write_real_program(def);
}
}
/* write out dispatcher for each program */
for (l = defined; l != NULL; l = l->next) {
def = (definition *) l->val;
if (def->def_kind == DEF_PROGRAM) {
write_program(def, storage);
}
}
}
/*
* write out definition of internal function (e.g. _printmsg_1(...))
* which calls server's defintion of actual function (e.g. printmsg_1(...)).
* Unpacks single user argument of printmsg_1 to call-by-value format
* expected by printmsg_1.
*/
static void
write_real_program(def)
definition *def;
{
version_list *vp;
proc_list *proc;
decl_list *l;
if (!newstyle) return; /* not needed for old style */
for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
for (proc = vp->procs; proc != NULL; proc = proc->next) {
f_print(fout, "\n");
if (!mtflag)
internal_proctype(proc);
else
f_print(fout, "int");
f_print(fout, "\n_");
pvname(proc->proc_name, vp->vers_num);
if (Cflag) {
f_print(fout, "(");
/* arg name */
if (proc->arg_num > 1)
f_print(fout, proc->args.argname);
else
ptype(proc->args.decls->decl.prefix,
proc->args.decls->decl.type, 0);
if (mtflag) {
f_print(fout, " *argp, void *%s, struct svc_req *%s)\n",
RESULT, RQSTP);
}
else
f_print(fout, " *argp, struct svc_req *%s)\n",
RQSTP);
} else {
if (mtflag)
f_print(fout, "(argp, %s, %s)\n", RESULT, RQSTP);
else
f_print(fout, "(argp, %s)\n", RQSTP);
/* arg name */
if (proc->arg_num > 1)
f_print(fout, "\t%s *argp;\n",
proc->args.argname);
else {
f_print(fout, "\t");
ptype(proc->args.decls->decl.prefix,
proc->args.decls->decl.type, 0);
f_print(fout, " *argp;\n");
}
if (mtflag)
f_print(fout, "\tvoid *%s;\n", RESULT);
f_print(fout, "\tstruct svc_req *%s;\n", RQSTP);
}
f_print(fout, "{\n");
f_print(fout, "\treturn (");
if (Cflag || mtflag) /* for mtflag, arguments are different */
pvname_svc(proc->proc_name, vp->vers_num);
else
pvname(proc->proc_name, vp->vers_num);
f_print(fout, "(");
if (proc->arg_num < 2) { /* single argument */
if (!streq(proc->args.decls->decl.type, "void"))
f_print(fout, "*argp, "); /* non-void */
} else {
for (l = proc->args.decls; l != NULL;
l = l->next)
f_print(fout, "argp->%s, ",
l->decl.name);
}
if (mtflag)
f_print(fout, "%s, ",RESULT);
f_print(fout, "%s));\n}\n", RQSTP);
}
}
}
static void
write_program(def, storage)
definition *def;
char *storage;
{
version_list *vp;
proc_list *proc;
int filled;
for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
f_print(fout, "\n");
if (storage != NULL) {
f_print(fout, "%s ", storage);
}
f_print(fout, "void\n");
pvname(def->def_name, vp->vers_num);
if (Cflag) {
f_print(fout, "(struct svc_req *%s, ", RQSTP);
f_print(fout, "register SVCXPRT *%s)\n", TRANSP);
} else {
f_print(fout, "(%s, %s)\n", RQSTP, TRANSP);
f_print(fout, " struct svc_req *%s;\n", RQSTP);
f_print(fout, " register SVCXPRT *%s;\n", TRANSP);
}
f_print(fout, "{\n");
filled = 0;
f_print(fout, "\tunion {\n");
for (proc = vp->procs; proc != NULL; proc = proc->next) {
if (proc->arg_num < 2) { /* single argument */
if (streq(proc->args.decls->decl.type,
"void")) {
continue;
}
filled = 1;
f_print(fout, "\t\t");
ptype(proc->args.decls->decl.prefix,
proc->args.decls->decl.type, 0);
pvname(proc->proc_name, vp->vers_num);
f_print(fout, "_arg;\n");
} else {
filled = 1;
f_print(fout, "\t\t%s", proc->args.argname);
f_print(fout, " ");
pvname(proc->proc_name, vp->vers_num);
f_print(fout, "_arg;\n");
}
}
if (!filled) {
f_print(fout, "\t\tint fill;\n");
}
f_print(fout, "\t} %s;\n", ARG);
if (mtflag) {
f_print(fout, "\tunion {\n");
for (proc = vp->procs; proc != NULL; proc = proc->next) {
f_print(fout, "\t\t");
ptype(proc->res_prefix, proc->res_type, 0);
pvname(proc->proc_name, vp->vers_num);
f_print(fout, "_res;\n");
}
f_print(fout, "\t} %s;\n", RESULT);
f_print(fout, "\tbool_t %s;\n", RETVAL);
} else
f_print(fout, "\tchar *%s;\n", RESULT);
if (Cflag) {
f_print(fout, "\txdrproc_t xdr_%s, xdr_%s;\n",
ARG, RESULT);
if (mtflag)
f_print(fout,
"\tbool_t (*%s)(char *, void *, struct svc_req *);\n",
ROUTINE);
else
f_print(fout,
"\tchar *(*%s)(char *, struct svc_req *);\n",
ROUTINE);
} else {
f_print(fout,
"\tbool_t (*xdr_%s)(), (*xdr_%s)();\n",
ARG, RESULT);
if (mtflag)
f_print(fout, "\tbool_t (*%s)();\n", ROUTINE);
else
f_print(fout, "\tchar *(*%s)();\n", ROUTINE);
}
f_print(fout, "\n");
if (timerflag) {
if (mtflag)
f_print(fout, "\tmutex_lock(&_svcstate_lock);\n");
f_print(fout, "\t_rpcsvcstate = _SERVING;\n");
if (mtflag)
f_print(fout, "\tmutex_unlock(&_svcstate_lock);\n");
}
f_print(fout, "\tswitch (%s->rq_proc) {\n", RQSTP);
if (!nullproc(vp->procs)) {
f_print(fout, "\tcase NULLPROC:\n");
f_print(fout,
Cflag
? "\t\t(void) svc_sendreply(%s,\n\t\t\t\
(xdrproc_t) xdr_void, (char *)NULL);\n"
: "\t\t(void) svc_sendreply(%s, xdr_void,\n\t\t\t\
(char *)NULL);\n",
TRANSP);
print_return("\t\t");
f_print(fout, "\n");
}
for (proc = vp->procs; proc != NULL; proc = proc->next) {
f_print(fout, "\tcase %s:\n", proc->proc_name);
if (proc->arg_num < 2) { /* single argument */
p_xdrfunc(ARG, proc->args.decls->decl.type);
} else {
p_xdrfunc(ARG, proc->args.argname);
}
p_xdrfunc(RESULT, proc->res_type);
if (Cflag)
if (mtflag)
f_print(fout,
"\t\t%s = (bool_t (*) (char *, void *, struct svc_req *))",
ROUTINE);
else
f_print(fout,
"\t\t%s = (char *(*)(char *, struct svc_req *)) ",
ROUTINE);
else
if (mtflag)
f_print(fout, "\t\t%s = (bool_t (*)()) ",
ROUTINE);
else
f_print(fout, "\t\t%s = (char *(*)()) ",
ROUTINE);
if (newstyle) { /* new style: calls internal routine */
f_print(fout, "_");
}
if ((Cflag || mtflag) && !newstyle)
pvname_svc(proc->proc_name, vp->vers_num);
else
pvname(proc->proc_name, vp->vers_num);
f_print(fout, ";\n");
f_print(fout, "\t\tbreak;\n\n");
}
f_print(fout, "\tdefault:\n");
printerr("noproc", TRANSP);
print_return("\t\t");
f_print(fout, "\t}\n");
f_print(fout,
"\t(void) memset((char *)&%s, 0, sizeof (%s));\n",
ARG, ARG);
if (Cflag)
printif("getargs", TRANSP, "(caddr_t) &", ARG);
else
printif("getargs", TRANSP, "&", ARG);
printerr("decode", TRANSP);
print_return("\t\t");
f_print(fout, "\t}\n");
if (!mtflag)
if (Cflag)
f_print(fout, "\t%s = (*%s)((char *)&%s, %s);\n",
RESULT, ROUTINE, ARG, RQSTP);
else
f_print(fout, "\t%s = (*%s)(&%s, %s);\n",
RESULT, ROUTINE, ARG, RQSTP);
else
if (Cflag)
f_print(fout, "\t%s = (bool_t) (*%s)((char *)&%s, (void *)&%s, %s);\n",
RETVAL, ROUTINE, ARG, RESULT, RQSTP);
else
f_print(fout, "\t%s = (bool_t) (*%s)(&%s, &%s, %s);\n",
RETVAL, ROUTINE, ARG, RESULT, RQSTP);
if (mtflag)
f_print(fout,
"\tif (%s > 0 && !svc_sendreply(%s, xdr_%s, (char *)&%s)) {\n",
RETVAL, TRANSP, RESULT, RESULT);
else
f_print(fout,
"\tif (%s != NULL && !svc_sendreply(%s, xdr_%s, %s)) {\n",
RESULT, TRANSP, RESULT, RESULT);
printerr("systemerr", TRANSP);
f_print(fout, "\t}\n");
if (Cflag)
printif("freeargs", TRANSP, "(caddr_t) &", ARG);
else
printif("freeargs", TRANSP, "&", ARG);
(void) sprintf(_errbuf, "unable to free arguments");
print_err_message("\t\t");
f_print(fout, "\t\texit(1);\n");
f_print(fout, "\t}\n");
/* print out free routine */
if (mtflag) {
f_print(fout,"\tif (!");
pvname(def->def_name, vp->vers_num);
f_print(fout,"_freeresult(%s, xdr_%s, (caddr_t) &%s))\n",
TRANSP, RESULT, RESULT);
(void) sprintf(_errbuf, "unable to free results");
print_err_message("\t\t");
f_print(fout, "\n");
};
print_return("\t");
f_print(fout, "}\n");
}
}
static void
printerr(err, transp)
char *err;
char *transp;
{
f_print(fout, "\t\tsvcerr_%s(%s);\n", err, transp);
}
static void
printif(proc, transp, prefix, arg)
char *proc;
char *transp;
char *prefix;
char *arg;
{
Bring in a hybrid of SunSoft's transport-independent RPC (TI-RPC) and associated changes that had to happen to make this possible as well as bugs fixed along the way. Bring in required TLI library routines to support this. Since we don't support TLI we've essentially copied what NetBSD has done, adding a thin layer to emulate direct the TLI calls into BSD socket calls. This is mostly from Sun's tirpc release that was made in 1994, however some fixes were backported from the 1999 release (supposedly only made available after this porting effort was underway). The submitter has agreed to continue on and bring us up to the 1999 release. Several key features are introduced with this update: Client calls are thread safe. (1999 code has server side thread safe) Updated, a more modern interface. Many userland updates were done to bring the code up to par with the recent RPC API. There is an update to the pthreads library, a function pthread_main_np() was added to emulate a function of Sun's threads library. While we're at it, bring in NetBSD's lockd, it's been far too long of a wait. New rpcbind(8) replaces portmap(8) (supporting communication over an authenticated Unix-domain socket, and by default only allowing set and unset requests over that channel). It's much more secure than the old portmapper. Umount(8), mountd(8), mount_nfs(8), nfsd(8) have also been upgraded to support TI-RPC and to support IPV6. Umount(8) is also fixed to unmount pathnames longer than 80 chars, which are currently truncated by the Kernel statfs structure. Submitted by: Martin Blapp <mb@imp.ch> Manpage review: ru Secure RPC implemented by: wpaul
2001-03-19 12:50:13 +00:00
f_print(fout, "\tif (!svc_%s(%s, xdr_%s, (char *)%s%s)) {\n",
proc, transp, arg, prefix, arg);
}
int
nullproc(proc)
proc_list *proc;
{
for (; proc != NULL; proc = proc->next) {
if (streq(proc->proc_num, "0")) {
return (1);
}
}
return (0);
}
static void
write_inetmost(infile)
char *infile;
{
f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP);
f_print(fout, "\tint sock;\n");
f_print(fout, "\tint proto;\n");
f_print(fout, "\tstruct sockaddr_in saddr;\n");
f_print(fout, "\tint asize = sizeof (saddr);\n");
f_print(fout, "\n");
f_print(fout,
"\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n");
f_print(fout, "\t\tint ssize = sizeof (int);\n\n");
f_print(fout, "\t\tif (saddr.sin_family != AF_INET)\n");
f_print(fout, "\t\t\texit(1);\n");
f_print(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n");
f_print(fout, "\t\t\t\t(char *)&_rpcfdtype, &ssize) == -1)\n");
f_print(fout, "\t\t\texit(1);\n");
f_print(fout, "\t\tsock = 0;\n");
f_print(fout, "\t\t_rpcpmstart = 1;\n");
f_print(fout, "\t\tproto = 0;\n");
open_log_file(infile, "\t\t");
f_print(fout, "\t} else {\n");
write_rpc_svc_fg(infile, "\t\t");
f_print(fout, "\t\tsock = RPC_ANYSOCK;\n");
print_pmapunset("\t\t");
f_print(fout, "\t}\n");
}
static void
print_return(space)
char *space;
{
if (exitnow)
f_print(fout, "%sexit(0);\n", space);
else {
if (timerflag) {
if (mtflag)
f_print(fout, "%smutex_lock(&_svcstate_lock);\n", space);
f_print(fout, "%s_rpcsvcstate = _SERVED;\n", space);
if (mtflag)
f_print(fout, "%smutex_unlock(&_svcstate_lock);\n", space);
}
f_print(fout, "%sreturn;\n", space);
}
}
static void
print_pmapunset(space)
char *space;
{
list *l;
definition *def;
version_list *vp;
for (l = defined; l != NULL; l = l->next) {
def = (definition *) l->val;
if (def->def_kind == DEF_PROGRAM) {
for (vp = def->def.pr.versions; vp != NULL;
vp = vp->next) {
f_print(fout, "%s(void) pmap_unset(%s, %s);\n",
space, def->def_name, vp->vers_name);
}
}
}
}
static void
print_err_message(space)
char *space;
{
if (logflag)
f_print(fout, "%ssyslog(LOG_ERR, \"%s\");\n", space, _errbuf);
else if (inetdflag || pmflag)
f_print(fout, "%s_msgout(\"%s\");\n", space, _errbuf);
else
f_print(fout, "%sfprintf(stderr, \"%s\");\n", space, _errbuf);
}
/*
* Write the server auxiliary function (_msgout, timeout)
*/
void
write_svc_aux(nomain)
int nomain;
{
if (!logflag)
write_msg_out();
if (!nomain)
write_timeout_func();
}
/*
* Write the _msgout function
*/
static void
write_msg_out(void)
{
f_print(fout, "\n");
/*
* Avoid making _msgout() static -- it's useful to have it visible
* in the toplevel RPC server code.
*/
f_print(fout, "static\n");
if (!Cflag) {
f_print(fout, "void _msgout(msg)\n");
f_print(fout, "\tchar *msg;\n");
} else {
f_print(fout, "void _msgout(char* msg)\n");
}
f_print(fout, "{\n");
f_print(fout, "#ifdef RPC_SVC_FG\n");
if (inetdflag || pmflag)
f_print(fout, "\tif (_rpcpmstart)\n");
f_print(fout, "\t\tsyslog(LOG_ERR, \"%%s\", msg);\n");
f_print(fout, "\telse\n");
f_print(fout,
"\t\t(void) fprintf(stderr, \"%%s\\n\", msg);\n");
f_print(fout, "#else\n");
f_print(fout, "\tsyslog(LOG_ERR, \"%%s\", msg);\n");
f_print(fout, "#endif\n");
f_print(fout, "}\n");
}
/*
* Write the timeout function
*/
static void
write_timeout_func(void)
{
if (!timerflag)
return;
f_print(fout, "\n");
f_print(fout, "static void\n");
if (!Cflag) {
f_print(fout, "closedown(sig)\n");
f_print(fout, "\tint sig;\n");
} else
f_print(fout, "closedown(int sig)\n");
f_print(fout, "{\n");
if (mtflag)
f_print(fout, "\tmutex_lock(&_svcstate_lock);\n");
f_print(fout, "\tif (_rpcsvcstate == _IDLE) {\n");
f_print(fout, "\t\textern fd_set svc_fdset;\n");
f_print(fout, "\t\tstatic int size;\n");
f_print(fout, "\t\tint i, openfd;\n");
if (tirpcflag && pmflag) {
f_print(fout, "\t\tstruct t_info tinfo;\n\n");
f_print(fout,
"\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n");
} else {
f_print(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n");
}
f_print(fout, "\t\t\texit(0);\n");
f_print(fout, "\t\tif (size == 0) {\n");
if (tirpcflag) {
f_print(fout, "\t\t\tstruct rlimit rl;\n\n");
f_print(fout, "\t\t\trl.rlim_max = 0;\n");
f_print(fout, "\t\t\tgetrlimit(RLIMIT_NOFILE, &rl);\n");
f_print(fout, "\t\t\tif ((size = rl.rlim_max) == 0) {\n");
if (mtflag)
f_print(fout, "\t\t\t\tmutex_unlock(&_svcstate_lock);\n");
f_print(fout, "\t\t\t\treturn;\n\t\t\t}\n");
} else {
f_print(fout, "\t\t\tsize = getdtablesize();\n");
}
f_print(fout, "\t\t}\n");
f_print(fout,
"\t\tfor (i = 0, openfd = 0; i < size && openfd < 2; i++)\n");
f_print(fout, "\t\t\tif (FD_ISSET(i, &svc_fdset))\n");
f_print(fout, "\t\t\t\topenfd++;\n");
f_print(fout, "\t\tif (openfd <= 1)\n");
f_print(fout, "\t\t\texit(0);\n");
f_print(fout, "\t}\n");
f_print(fout, "\tif (_rpcsvcstate == _SERVED)\n");
f_print(fout, "\t\t_rpcsvcstate = _IDLE;\n\n");
if (mtflag)
f_print(fout, "\tmutex_unlock(&_svcstate_lock);\n");
f_print(fout, "\t(void) signal(SIGALRM, %s closedown);\n",
Cflag? "(SIG_PF)" : "(void(*)())");
f_print(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN/2);\n");
f_print(fout, "}\n");
}
/*
* Write the most of port monitor support
*/
static void
write_pm_most(infile, netflag)
char *infile;
int netflag;
{
list *l;
definition *def;
version_list *vp;
f_print(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n");
f_print(fout, "\t\t(!strcmp(mname, \"sockmod\") ||");
f_print(fout, " !strcmp(mname, \"timod\"))) {\n");
f_print(fout, "\t\tchar *netid;\n");
if (!netflag) { /* Not included by -n option */
f_print(fout, "\t\tstruct netconfig *nconf = NULL;\n");
f_print(fout, "\t\tSVCXPRT *%s;\n", TRANSP);
}
if (timerflag)
f_print(fout, "\t\tint pmclose;\n");
/*
* Not necessary, defined in /usr/include/stdlib
* f_print(fout, "\t\textern char *getenv();\n");
*/
f_print(fout, "\n");
f_print(fout, "\t\t_rpcpmstart = 1;\n");
open_log_file(infile, "\t\t");
f_print(fout, "\n\t\tif ((netid = \
getenv(\"NLSPROVIDER\")) == NULL) {\n");
if (timerflag) {
f_print(fout, "\t\t/* started from inetd */\n");
f_print(fout, "\t\t\tpmclose = 1;\n");
}
f_print(fout,
"\t\t} else {\n");
f_print(fout, "\t\t\tif ((nconf = getnetconfigent(netid)) == NULL)\n");
sprintf(_errbuf, "cannot get transport info");
print_err_message("\t\t\t\t");
if (timerflag)
f_print(fout, "\n\t\t\tpmclose = \
(t_getstate(0) != T_DATAXFER);\n");
f_print(fout, "\t\t}\n");
/*
* A kludgy support for inetd services. Inetd only works with
* sockmod, and RPC works only with timod, hence all this jugglery
*/
f_print(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n");
f_print(fout,
"\t\t\tif (ioctl(0, I_POP, 0) || \
ioctl(0, I_PUSH, \"timod\")) {\n");
sprintf(_errbuf, "could not get the right module");
print_err_message("\t\t\t\t");
f_print(fout, "\t\t\t\texit(1);\n");
f_print(fout, "\t\t\t}\n");
f_print(fout, "\t\t}\n");
f_print(fout,
"\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) \
== NULL) {\n",
TRANSP);
sprintf(_errbuf, "cannot create server handle");
print_err_message("\t\t\t");
f_print(fout, "\t\t\texit(1);\n");
f_print(fout, "\t\t}\n");
f_print(fout, "\t\tif (nconf)\n");
f_print(fout, "\t\t\tfreenetconfigent(nconf);\n");
for (l = defined; l != NULL; l = l->next) {
def = (definition *) l->val;
if (def->def_kind != DEF_PROGRAM) {
continue;
}
for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
f_print(fout,
"\t\tif (!svc_reg(%s, %s, %s, ",
TRANSP, def->def_name, vp->vers_name);
pvname(def->def_name, vp->vers_num);
f_print(fout, ", 0)) {\n");
(void) sprintf(_errbuf, "unable to register (%s, %s).",
def->def_name, vp->vers_name);
print_err_message("\t\t\t");
f_print(fout, "\t\t\texit(1);\n");
f_print(fout, "\t\t}\n");
}
}
if (timerflag) {
f_print(fout, "\t\tif (pmclose) {\n");
f_print(fout, "\t\t\t(void) signal(SIGALRM, %s closedown);\n",
Cflag? "(SIG_PF)" : "(void(*)())");
f_print(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN/2);\n");
f_print(fout, "\t\t}\n");
}
f_print(fout, "\t\tsvc_run();\n");
f_print(fout, "\t\texit(1);\n");
f_print(fout, "\t\t/* NOTREACHED */\n");
f_print(fout, "\t}");
}
/*
* Support for backgrounding the server if self started.
*/
static void
write_rpc_svc_fg(infile, sp)
char *infile;
char *sp;
{
f_print(fout, "#ifndef RPC_SVC_FG\n");
f_print(fout, "%sint size;\n", sp);
if (tirpcflag)
f_print(fout, "%sstruct rlimit rl;\n", sp);
if (inetdflag)
f_print(fout, "%sint pid, i;\n\n", sp);
f_print(fout, "%spid = fork();\n", sp);
f_print(fout, "%sif (pid < 0) {\n", sp);
f_print(fout, "%s\tperror(\"cannot fork\");\n", sp);
f_print(fout, "%s\texit(1);\n", sp);
f_print(fout, "%s}\n", sp);
f_print(fout, "%sif (pid)\n", sp);
f_print(fout, "%s\texit(0);\n", sp);
/* get number of file descriptors */
if (tirpcflag) {
f_print(fout, "%srl.rlim_max = 0;\n", sp);
f_print(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp);
f_print(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp);
f_print(fout, "%s\texit(1);\n", sp);
} else {
f_print(fout, "%ssize = getdtablesize();\n", sp);
}
f_print(fout, "%sfor (i = 0; i < size; i++)\n", sp);
f_print(fout, "%s\t(void) close(i);\n", sp);
/* Redirect stderr and stdout to console */
f_print(fout, "%si = open(\"/dev/console\", 2);\n", sp);
f_print(fout, "%s(void) dup2(i, 1);\n", sp);
f_print(fout, "%s(void) dup2(i, 2);\n", sp);
/* This removes control of the controlling terminal */
if (tirpcflag)
f_print(fout, "%ssetsid();\n", sp);
else {
f_print(fout, "%si = open(\"/dev/tty\", 2);\n", sp);
f_print(fout, "%sif (i >= 0) {\n", sp);
f_print(fout,
"%s\t(void) ioctl(i, TIOCNOTTY, (char *)NULL);\n", sp);
f_print(fout, "%s\t(void) close(i);\n", sp);
f_print(fout, "%s}\n", sp);
}
if (!logflag)
open_log_file(infile, sp);
f_print(fout, "#endif\n");
if (logflag)
open_log_file(infile, sp);
}
static void
open_log_file(infile, sp)
char *infile;
char *sp;
{
char *s;
s = strrchr(infile, '.');
if (s)
*s = '\0';
f_print(fout, "%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, infile);
if (s)
*s = '.';
}
/*
* write a registration for the given transport for Inetd
*/
void
write_inetd_register(transp)
char *transp;
{
list *l;
definition *def;
version_list *vp;
char *sp;
int isudp;
char tmpbuf[32];
if (inetdflag)
sp = "\t";
else
sp = "";
if (streq(transp, "udp"))
isudp = 1;
else
isudp = 0;
f_print(fout, "\n");
if (inetdflag) {
f_print(fout,
"\tif ((_rpcfdtype == 0) || (_rpcfdtype == %s)) {\n",
isudp ? "SOCK_DGRAM" : "SOCK_STREAM");
}
f_print(fout, "%s\t%s = svc%s_create(%s",
sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK");
if (!isudp)
f_print(fout, ", 0, 0");
f_print(fout, ");\n");
f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP);
(void) sprintf(_errbuf, "cannot create %s service.", transp);
(void) sprintf(tmpbuf, "%s\t\t", sp);
print_err_message(tmpbuf);
f_print(fout, "%s\t\texit(1);\n", sp);
f_print(fout, "%s\t}\n", sp);
if (inetdflag) {
f_print(fout, "%s\tif (!_rpcpmstart)\n\t", sp);
f_print(fout, "%s\tproto = IPPROTO_%s;\n",
sp, isudp ? "UDP": "TCP");
}
for (l = defined; l != NULL; l = l->next) {
def = (definition *) l->val;
if (def->def_kind != DEF_PROGRAM) {
continue;
}
for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
f_print(fout, "%s\tif (!svc_register(%s, %s, %s, ",
sp, TRANSP, def->def_name, vp->vers_name);
pvname(def->def_name, vp->vers_num);
if (inetdflag)
f_print(fout, ", proto)) {\n");
else
f_print(fout, ", IPPROTO_%s)) {\n",
isudp ? "UDP": "TCP");
(void) sprintf(_errbuf,
"unable to register (%s, %s, %s).",
def->def_name, vp->vers_name, transp);
print_err_message(tmpbuf);
f_print(fout, "%s\t\texit(1);\n", sp);
f_print(fout, "%s\t}\n", sp);
}
}
if (inetdflag)
f_print(fout, "\t}\n");
}