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freebsd-dev/usr.bin/rpcgen/rpc_svcout.c
Robert Watson 99b671f5a1 In change 1.15, an arbitrary setting of the max RPC record size to 
RPC_MAXDATASIZE was introduced.  This is believed to have been debugging
code committed accidentally, although I've been unable to reach the
committer to confirm this.  The effect was to limit the size of RPCs on
TCP and UDP to 9k, well below the default protocol limits in the libc
rpc code.  This change simply removes these introduced limits, falling
back on the libc definitions.

PR:		88856
Reported by:	Keith Bostic <bostic at sleepycat dot com>
Testing by:	Susan LoVerso <sue at loverso dot southborough dot ma dot us>
Reveiwed by:	cel, rees
Review timeout:	alfred, mbr
MFC after:	2 weeks
2006-05-17 23:18:17 +00:00

1018 lines
27 KiB
C
Raw Blame History

/*
* 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
#ifndef lint
#ident "@(#)rpc_svcout.c 1.4 90/04/13 SMI"
static char sccsid[] = "@(#)rpc_svcout.c 1.29 89/03/30 (C) 1987 SMI";
#endif
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* 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_scan.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 */
void internal_proctype( proc_list * );
static void write_real_program( definition * );
static void write_program(definition *, const char *);
static void printerr(const char *, const char *);
static void printif(const char *, const char *, const char *, const char *);
static void write_inetmost(const char *);
static void print_return(const char *);
static void print_pmapunset(const char *);
static void print_err_message(const char *);
static void write_timeout_func( void );
static void write_pm_most(const char *, int);
static void write_rpc_svc_fg(const char *, const char *);
static void open_log_file(const char *, const char *);
static void write_msg_out( void );
static void
p_xdrfunc(const char *rname, const char *typename)
{
f_print(fout, "\t\txdr_%s = (xdrproc_t) xdr_%s;\n",
rname, stringfix(typename));
}
void
internal_proctype(proc_list *plist)
{
f_print(fout, "static ");
ptype(plist->res_prefix, plist->res_type, 1);
f_print(fout, "*");
}
/*
* write most of the service, that is, everything but the registrations.
*/
void
write_most(const char *infile, int netflag, int nomain)
{
if (inetdflag || pmflag) {
const 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 || tirpc_socket) {
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, "\nint\n");
f_print(fout, "main()\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");
if (pmflag) {
if (tirpc_socket) {
f_print(fout, "\tstruct sockaddr_storage saddr;\n");
f_print(fout, "\tsocklen_t asize = sizeof (saddr);\n\n");
} else
f_print(fout, "\tchar mname[FMNAMESZ + 1];\n\n");
}
if (mtflag & timerflag)
f_print(fout, "\tmutex_init(&_svcstate_lock, USYNC_THREAD, NULL);\n");
if (pmflag) {
write_pm_most(infile, netflag);
f_print(fout, "\telse {\n");
write_rpc_svc_fg(infile, "\t\t");
f_print(fout, "\t}\n");
} else
write_rpc_svc_fg(infile, "\t\t");
} 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(const char *transp)
{
list *l;
definition *def;
version_list *vp;
const 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);
if (tirpcflag) {
f_print(fout, "%s\t%s = svc_tli_create(RPC_ANYFD, ",
sp, TRANSP);
f_print(fout,"nconf, 0, RPC_MAXDATASIZE, RPC_MAXDATASIZE);\n");
} else {
f_print(fout,
"%s\t%s = svc_tli_create(RPC_ANYFD, nconf, 0, 0, 0);\n",
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(const 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");
}
}
}
/*
* write the rest of the service
*/
void
write_rest(void)
{
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, closedown);\n");
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(const 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(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);
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);
f_print(fout, "{\n");
f_print(fout, "\treturn (");
pvname_svc(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(definition *def, const 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);
f_print(fout, "(struct svc_req *%s, ", RQSTP);
f_print(fout, "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);
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);
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,
"\t\t(void) svc_sendreply(%s,\n\t\t\t"
"(xdrproc_t) xdr_void, (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 (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);
if (newstyle) { /* new style: calls internal routine */
f_print(fout, "_");
}
if (!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);
printif("getargs", TRANSP, "(caddr_t) &", ARG);
printerr("decode", TRANSP);
print_return("\t\t");
f_print(fout, "\t}\n");
if (!mtflag)
f_print(fout, "\t%s = (*%s)((char *)&%s, %s);\n",
RESULT, ROUTINE, ARG, RQSTP);
else
f_print(fout, "\t%s = (bool_t) (*%s)((char *)&%s, (void *)&%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");
printif("freeargs", TRANSP, "(caddr_t) &", 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(const char *err, const char *transp)
{
f_print(fout, "\t\tsvcerr_%s(%s);\n", err, transp);
}
static void
printif(const char *proc, const char *transp, const char *prefix,
const char *arg)
{
f_print(fout, "\tif (!svc_%s(%s, xdr_%s, (char *)%s%s)) {\n",
proc, transp, arg, prefix, arg);
}
int
nullproc(proc_list *proc)
{
for (; proc != NULL; proc = proc->next) {
if (streq(proc->proc_num, "0")) {
return (1);
}
}
return (0);
}
static void
write_inetmost(const 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, "\tsocklen_t asize = sizeof (saddr);\n");
f_print(fout, "\n");
f_print(fout,
"\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n");
f_print(fout, "\t\tsocklen_t 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(const 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(const 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(const 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(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");
f_print(fout, "void _msgout(const 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");
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, closedown);\n");
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(const char *infile, int netflag)
{
list *l;
definition *def;
version_list *vp;
if (tirpc_socket) {
f_print(fout,
"\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n");
f_print(fout, "\t\tsocklen_t ssize = sizeof (int);\n");
} else {
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");
if (tirpc_socket) {
f_print(fout, "\t\tif (saddr.ss_family != AF_INET &&\n");
f_print(fout, "\t\t saddr.ss_family != AF_INET6)\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\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) {
if (tirpc_socket)
f_print(fout, "\n\t\t\tpmclose = 1;\t/* XXX */\n");
else
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
*/
if (!tirpc_socket) {
f_print(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n");
f_print(fout, "\t\t\tif (ioctl(0, I_POP, 0) || ");
f_print(fout, "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");
}
if (tirpcflag) {
f_print(fout,
"\t\tif ((%s = svc_tli_create(0, nconf, NULL, \
RPC_MAXDATASIZE, RPC_MAXDATASIZE)) \
== NULL) {\n",
TRANSP);
} else {
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, closedown);\n");
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(const char *infile, const 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(const char *infile, const 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(const char *transp)
{
list *l;
definition *def;
version_list *vp;
const 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");
}
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