/* $NetBSD: rpc_svcout.c,v 1.32 2024/06/18 21:31:35 christos Exp $ */

/* $NetBSD: rpc_svcout.c,v 1.32 2024/06/18 21:31:35 christos Exp $ */
/*
* 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 or with the express written consent of
* Sun Microsystems, Inc.
*
* 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 HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif

#include <sys/cdefs.h>
#if defined(__RCSID) && !defined(lint)
#if 0
static char sccsid[] = "@(#)rpc_svcout.c 1.29 89/03/30 (C) 1987 SMI";
#else
__RCSID("$NetBSD: rpc_svcout.c,v 1.32 2024/06/18 21:31:35 christos Exp $");
#endif
#endif

/*
* rpc_svcout.c, Server-skeleton outputter for the RPC protocol compiler
*/
#include <stdio.h>
#include <string.h>
#include "rpc_scan.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 void p_xdrfunc(const char *, const char *);
static 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(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_caller_func(void);
static void write_pm_most(char *, int);
static void write_rpc_svc_fg(char *, const char *);
static void open_log_file(char *, const char *);
static const char *aster(const char *);

char _errbuf[256]; /* For all messages */

static void
p_xdrfunc(const char *rname, const char *typename)
{
f_print(fout, "\t\txdr_%s = (xdrproc_t)xdr_%s;\n", rname,
stringfix(typename));
}

static void
internal_proctype(proc_list *plist)
{
f_print(fout, "static ");
ptype(plist->res_prefix, plist->res_type, 1);
if (!Mflag)
f_print(fout, "*");
}

/*
* write most of the service, that is, everything but the registrations.
*/
void
write_most(char *infile /* our name */, int netflag, int nomain)
{
if (inetdflag || pmflag) {
const char *var_type;
var_type = (nomain ? "" : "static ");
f_print(fout, "%sint _rpcpmstart;", var_type);
f_print(fout, "\t\t/* Started by a port monitor ? */\n");
f_print(fout, "%sint _rpcfdtype;", var_type);
f_print(fout, "\t\t/* Whether Stream or Datagram ? */\n");
if (timerflag) {
f_print(fout, "%sint _rpcsvcdirty;", var_type);
f_print(fout, "\t/* Still serving ? */\n");
}
write_svc_aux(nomain);
}
/* write out dispatcher and stubs */
write_programs(nomain ? NULL : "static");

if (nomain)
return;

f_print(fout, "\n\n");
f_print(fout, "int main(int, char *[]);\n");
f_print(fout, "\nint\n");
f_print(fout, "main(int argc, char *argv[])\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, "\tSVCXPRT *%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");
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, "\tSVCXPRT *%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);
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 == 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, (SIG_PF)closedown);\n");
f_print(fout, "\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\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 definition 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");
internal_proctype(proc);
f_print(fout, "\n_");
pvname(proc->proc_name, vp->vers_num);
f_print(fout, "(");
/* arg name */
if (proc->arg_num > 1)
f_print(fout, "%s ",
proc->args.argname);
else
ptype(proc->args.decls->decl.prefix,
proc->args.decls->decl.type, 0);
f_print(fout, "*argp, ");
if (Mflag) {
if (streq(proc->res_type, "void"))
f_print(fout, "char ");
else
ptype(proc->res_prefix,
proc->res_type, 0);
f_print(fout, "%sresult, ",
aster(proc->res_type));
}
f_print(fout, "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);
}
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 ");
pvname(def->def_name, vp->vers_num);
f_print(fout, "(struct svc_req *%s, ", RQSTP);
f_print(fout, "SVCXPRT *%s);\n", TRANSP);

if (Mflag) {
if (storage != NULL) {
f_print(fout, "%s ", storage);
}
f_print(fout, "int ");
pvname(def->def_name, vp->vers_num);
f_print(fout, "_freeresult"
"(SVCXPRT *, xdrproc_t, caddr_t);\n");
}
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 (Mflag) {
f_print(fout, "\tunion {\n");
for (proc = vp->procs; proc != NULL; proc = proc->next) {
f_print(fout, "\t\t");
if (streq(proc->res_type, "void"))
f_print(fout, "char ");
else
ptype(proc->res_prefix, proc->res_type,
1);
pvname(proc->proc_name, vp->vers_num);
f_print(fout, "_res;\n");
}
f_print(fout, "\t} %s;\n", RESULT);
f_print(fout, "\tbool_t retval;\n");
} else
f_print(fout, "\tchar *%s;\n", RESULT);

f_print(fout, "\txdrproc_t xdr_%s, xdr_%s;\n", ARG, RESULT);
if (Mflag)
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 (callerflag)
f_print(fout, "\tcaller = transp;\n"); /* EVAS */
if (timerflag)
f_print(fout, "\t_rpcsvcdirty = 1;\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, (xdrproc_t)xdr_void, 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 (Mflag)
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, "_");
pvname(proc->proc_name, vp->vers_num);
} else {
pvname_svc(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(&%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 (Mflag)
f_print(fout, "\tretval = (*%s)((char *)&%s, (void *)&%s, %s);\n",
ROUTINE, ARG, RESULT, RQSTP);
else
f_print(fout, "\t%s = (*%s)((char *)&%s, %s);\n",
RESULT, ROUTINE, ARG, RQSTP);
if (Mflag)
f_print(fout,
"\tif (retval > 0 && !svc_sendreply(%s, xdr_%s, (char *)&%s)) {\n",
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");

if (Mflag) {
f_print(fout, "\tif (!");
pvname(def->def_name, vp->vers_num);
f_print(fout, "_freeresult");
f_print(fout, "(%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, "\t\texit(1);\n");
f_print(fout, "\t}\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, %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(char *infile)
{
f_print(fout, "\tSVCXPRT *%s = NULL;\n", TRANSP);
f_print(fout, "\tint sock;\n");
f_print(fout, "\tint proto = 0;\n");
f_print(fout, "\tstruct sockaddr_in saddr;\n");
f_print(fout, "\tsocklen_t asize = (socklen_t)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 = (socklen_t)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(void *)&_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)
f_print(fout, "%s_rpcsvcdirty = 0;\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();
if (callerflag) /* EVAS */
write_caller_func(); /* EVAS */
}
/*
* Write the _msgout function
*/
void
write_msg_out(void)
{
f_print(fout, "\n");
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 closedown(void);\n");
f_print(fout, "\n");
f_print(fout, "static void\n");
f_print(fout, "closedown(void)\n");
f_print(fout, "{\n");
f_print(fout, "\tif (_rpcsvcdirty == 0) {\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\tif (getrlimit(RLIMIT_NOFILE, &rl) == -1)\n");
f_print(fout, "\t\t\t\treturn;\n");
f_print(fout, "\t\t\tif ((size = rl.rlim_max) == 0)\n");
f_print(fout, "\t\t\t\treturn;\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 <= (_rpcpmstart?0:1))\n");
f_print(fout, "\t\t\texit(0);\n");
f_print(fout, "\t}\n");
f_print(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN);\n");
f_print(fout, "}\n");
}

static void
write_caller_func(void)
{ /* EVAS */
#define P(s) f_print(fout, s);

P("\n");
P("char *svc_caller()\n");
P("{\n");
P(" struct sockaddr_in actual;\n");
P(" struct hostent *hp;\n");
P(" static struct in_addr prev;\n");
P(" static char cname[128];\n\n");

P(" actual = *svc_getcaller(caller);\n\n");

P(" if (memcmp((char *)&actual.sin_addr, (char *)&prev,\n");
P(" sizeof(struct in_addr)) == 0)\n");
P(" return (cname);\n\n");

P(" prev = actual.sin_addr;\n\n");

P(" hp = gethostbyaddr((char *)&actual.sin_addr, sizeof(actual.sin_addr), AF_INET);\n");
P(" if (hp == NULL) { /* dummy one up */\n");
P(" extern char *inet_ntoa();\n");
P(" strlcpy(cname, inet_ntoa(actual.sin_addr), sizeof(cname));\n");
P(" } else {\n");
P(" strlcpy(cname, hp->h_name, sizeof(cname));\n");
P(" }\n\n");

P(" return (cname);\n");
P("}\n");

#undef P
}
/*
* Write the most of port monitor support
*/
static void
write_pm_most(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");
f_print(fout, "\n");
f_print(fout, "\t\t_rpcpmstart = 1;\n");
if (logflag)
open_log_file(infile, "\t\t");
f_print(fout, "\t\tif ((netid = getenv(\"NLSPROVIDER\")) == NULL) {\n");
sprintf(_errbuf, "cannot get transport name");
print_err_message("\t\t\t");
f_print(fout, "\t\t} else if ((nconf = getnetconfigent(netid)) == NULL) {\n");
sprintf(_errbuf, "cannot get transport info");
print_err_message("\t\t\t");
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");
if (timerflag)
f_print(fout, "\t\tpmclose = (t_getstate(0) != T_DATAXFER);\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, (SIGPF)closedown);\n");
f_print(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\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}\n");
}
/*
* Support for backgrounding the server if self started.
*/
static void
write_rpc_svc_fg(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\terr(EXIT_FAILURE, \"cannot fork\");\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, "%sif (getrlimit(RLIMIT_NOFILE, &rl) == -1)\n", sp);
f_print(fout, "%s\terr(EXIT_FAILURE, \"getrlimit(RLIMIT_NOFILE)\");\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, 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(char *infile, const char *sp)
{
char *s, *p;

s = strrchr(infile, '.');
if (s)
*s = '\0';
p = strrchr(infile, '/');
if (p)
p++;
else
p = infile;
f_print(fout, "%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, p);
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");
}
if (inetdflag && streq(transp, "tcp")) {
f_print(fout, "%s\tif (_rpcpmstart)\n", sp);

f_print(fout, "%s\t\t%s = svc%s_create(%s",
sp, TRANSP, "fd", inetdflag ? "sock" : "RPC_ANYSOCK");
if (!isudp)
f_print(fout, ", 0, 0");
f_print(fout, ");\n");

f_print(fout, "%s\telse\n", sp);

f_print(fout, "%s\t\t%s = svc%s_create(%s",
sp, TRANSP, transp, inetdflag ? "sock" : "RPC_ANYSOCK");
if (!isudp)
f_print(fout, ", 0, 0");
f_print(fout, ");\n");

} else {
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");
}

static const char *
aster(const char *type)
{
if (isvectordef(type, REL_ALIAS)) {
return ("");
} else {
return ("*");
}
}