OpenBSD-4.6/usr.bin/rpcgen/rpc_svcout.c
/* $OpenBSD: rpc_svcout.c,v 1.24 2007/10/03 15:12:13 weingart Exp $ */
/* $NetBSD: rpc_svcout.c,v 1.7 1995/06/24 14:59:59 pk 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
*/
#ifndef lint
static const char sccsid[] = "@(#)rpc_svcout.c 1.29 89/03/30 (C) 1987 SMI";
#endif
/*
* rpc_svcout.c, Server-skeleton outputter for the RPC protocol compiler
*/
#include <sys/cdefs.h>
#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";
char _errbuf[256]; /* For all messages */
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_caller_func(void);
static void write_rpc_svc_fg(char *, char *);
static void write_msg_out(void);
static void open_log_file(char *, char *);
static void
p_xdrfunc(char *rname, char *typename)
{
if (Cflag)
fprintf(fout, "\t\txdr_%s = (xdrproc_t) xdr_%s;\n",
rname, stringfix(typename));
else
fprintf(fout, "\t\txdr_%s = xdr_%s;\n", rname,
stringfix(typename));
}
void
internal_proctype(plist)
proc_list *plist;
{
fprintf(fout, "static ");
ptype(plist->res_prefix, plist->res_type, 1);
fprintf(fout, "*");
}
/*
* 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");
fprintf(fout, "%s int _rpcpmstart;", var_type);
fprintf(fout, "\t\t/* Started by a port monitor ? */\n");
fprintf(fout, "%s int _rpcfdtype;", var_type);
fprintf(fout, "\t\t/* Whether Stream or Datagram ? */\n");
if (timerflag) {
fprintf(fout, "%s int _rpcsvcdirty;", var_type);
fprintf(fout, "\t/* Still serving ? */\n");
}
write_svc_aux(nomain);
}
/* write out dispatcher and stubs */
write_programs(nomain? (char *)NULL : "static");
if (nomain)
return;
fprintf(fout, "\nmain()\n");
fprintf(fout, "{\n");
if (inetdflag) {
write_inetmost(infile); /* Includes call to write_rpc_svc_fg() */
} else {
if (tirpcflag) {
if (netflag) {
fprintf(fout, "\tSVCXPRT *%s;\n", TRANSP);
fprintf(fout, "\tstruct netconfig *nconf = NULL;\n");
}
fprintf(fout, "\tpid_t pid;\n");
fprintf(fout, "\tint i;\n");
fprintf(fout, "\tchar mname[FMNAMESZ + 1];\n\n");
write_pm_most(infile, netflag);
fprintf(fout, "\telse {\n");
write_rpc_svc_fg(infile, "\t\t");
fprintf(fout, "\t}\n");
} else {
fprintf(fout, "\tSVCXPRT *%s;\n", TRANSP);
fprintf(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 = "";
fprintf(fout, "\n");
fprintf(fout, "%s\tnconf = getnetconfigent(\"%s\");\n", sp, transp);
fprintf(fout, "%s\tif (nconf == NULL) {\n", sp);
(void) snprintf(_errbuf, sizeof _errbuf, "cannot find %s netid.", transp);
snprintf(tmpbuf, sizeof tmpbuf, "%s\t\t", sp);
print_err_message(tmpbuf);
fprintf(fout, "%s\t\texit(1);\n", sp);
fprintf(fout, "%s\t}\n", sp);
fprintf(fout, "%s\t%s = svc_tli_create(RPC_ANYFD, nconf, 0, 0, 0);\n",
sp, TRANSP);
fprintf(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP);
(void) snprintf(_errbuf, sizeof _errbuf, "cannot create %s service.", transp);
print_err_message(tmpbuf);
fprintf(fout, "%s\t\texit(1);\n", sp);
fprintf(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) {
fprintf(fout,
"%s\t(void) rpcb_unset(%s, %s, nconf);\n",
sp, def->def_name, vp->vers_name);
fprintf(fout,
"%s\tif (!svc_reg(%s, %s, %s, ",
sp, TRANSP, def->def_name, vp->vers_name);
pvname(def->def_name, vp->vers_num);
fprintf(fout, ", nconf)) {\n");
(void) snprintf(_errbuf, sizeof _errbuf,
"unable to register (%s, %s, %s).",
def->def_name, vp->vers_name, transp);
print_err_message(tmpbuf);
fprintf(fout, "%s\t\texit(1);\n", sp);
fprintf(fout, "%s\t}\n", sp);
}
}
fprintf(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) {
fprintf(fout, "\tif (!svc_create(");
pvname(def->def_name, vp->vers_num);
fprintf(fout, ", %s, %s, \"%s\")) {\n",
def->def_name, vp->vers_name, transp);
(void) snprintf(_errbuf, sizeof _errbuf,
"unable to create (%s, %s) for %s.",
def->def_name, vp->vers_name, transp);
print_err_message("\t\t");
fprintf(fout, "\t\texit(1);\n");
fprintf(fout, "\t}\n");
}
}
}
/*
* write the rest of the service
*/
void
write_rest()
{
fprintf(fout, "\n");
if (inetdflag) {
fprintf(fout, "\tif (%s == (SVCXPRT *)NULL) {\n", TRANSP);
(void) snprintf(_errbuf, sizeof _errbuf, "could not create a handle");
print_err_message("\t\t");
fprintf(fout, "\t\texit(1);\n");
fprintf(fout, "\t}\n");
if (timerflag) {
fprintf(fout, "\tif (_rpcpmstart) {\n");
fprintf(fout,
"\t\t(void) signal(SIGALRM, %s closedown);\n",
Cflag? "(SIG_PF)" : "(void(*)())");
fprintf(fout, "\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n");
fprintf(fout, "\t}\n");
}
}
fprintf(fout, "\tsvc_run();\n");
(void) snprintf(_errbuf, sizeof _errbuf, "svc_run returned");
print_err_message("\t");
fprintf(fout, "\texit(1);\n");
fprintf(fout, "\t/* NOTREACHED */\n");
fprintf(fout, "}\n");
}
void
write_programs(storage)
char *storage;
{
definition *def;
list *l;
/* 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(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) {
fprintf(fout, "\n");
internal_proctype(proc);
fprintf(fout, "\n_");
pvname(proc->proc_name, vp->vers_num);
if (Cflag) {
fprintf(fout, "(");
/* arg name */
if (proc->arg_num > 1)
fprintf(fout, "%s", proc->args.argname);
else
ptype(proc->args.decls->decl.prefix,
proc->args.decls->decl.type, 0);
fprintf(fout, " *argp, struct svc_req *%s)\n",
RQSTP);
} else {
fprintf(fout, "(argp, %s)\n", RQSTP);
/* arg name */
if (proc->arg_num > 1)
fprintf(fout, "\t%s *argp;\n",
proc->args.argname);
else {
fprintf(fout, "\t");
ptype(proc->args.decls->decl.prefix,
proc->args.decls->decl.type, 0);
fprintf(fout, " *argp;\n");
}
fprintf(fout, " struct svc_req *%s;\n", RQSTP);
}
fprintf(fout, "{\n");
fprintf(fout, "\treturn(");
pvname_svc(proc->proc_name, vp->vers_num);
fprintf(fout, "(");
if (proc->arg_num < 2) { /* single argument */
if (!streq(proc->args.decls->decl.type, "void"))
fprintf(fout, "*argp, "); /* non-void */
} else {
for (l = proc->args.decls; l != NULL; l = l->next)
fprintf(fout, "argp->%s, ", l->decl.name);
}
fprintf(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) {
fprintf(fout, "\n");
if (storage != NULL)
fprintf(fout, "%s ", storage);
fprintf(fout, "void\t");
pvname(def->def_name, vp->vers_num);
if (Cflag) {
fprintf(fout, "(struct svc_req *%s, ", RQSTP);
fprintf(fout, "SVCXPRT *%s);\n", TRANSP);
} else {
fprintf(fout, "();\n");
}
fprintf(fout, "\n");
if (storage != NULL)
fprintf(fout, "%s ", storage);
fprintf(fout, "void\n");
pvname(def->def_name, vp->vers_num);
if (Cflag) {
fprintf(fout, "(struct svc_req *%s, ", RQSTP);
fprintf(fout, "SVCXPRT *%s)\n", TRANSP);
} else {
fprintf(fout, "(%s, %s)\n", RQSTP, TRANSP);
fprintf(fout, " struct svc_req *%s;\n", RQSTP);
fprintf(fout, " SVCXPRT *%s;\n", TRANSP);
}
fprintf(fout, "{\n");
filled = 0;
fprintf(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;
fprintf(fout, "\t\t");
ptype(proc->args.decls->decl.prefix,
proc->args.decls->decl.type, 0);
pvname(proc->proc_name, vp->vers_num);
fprintf(fout, "_arg;\n");
} else {
filled = 1;
fprintf(fout, "\t\t%s", proc->args.argname);
fprintf(fout, " ");
pvname(proc->proc_name, vp->vers_num);
fprintf(fout, "_arg;\n");
}
}
if (!filled)
fprintf(fout, "\t\tint fill;\n");
fprintf(fout, "\t} %s;\n", ARG);
fprintf(fout, "\tchar *%s;\n", RESULT);
if (Cflag) {
fprintf(fout, "\txdrproc_t xdr_%s, xdr_%s;\n", ARG, RESULT);
fprintf(fout,
"\tchar *(*%s)(char *, struct svc_req *);\n",
ROUTINE);
} else {
fprintf(fout, "\tbool_t (*xdr_%s)(), (*xdr_%s)();\n",
ARG, RESULT);
fprintf(fout, "\tchar *(*%s)();\n", ROUTINE);
}
fprintf(fout, "\n");
if (callerflag)
fprintf(fout, "\tcaller = transp;\n"); /*EVAS*/
if (timerflag)
fprintf(fout, "\t_rpcsvcdirty = 1;\n");
fprintf(fout, "\tswitch (%s->rq_proc) {\n", RQSTP);
if (!nullproc(vp->procs)) {
fprintf(fout, "\tcase NULLPROC:\n");
fprintf(fout,
Cflag
? "\t\t(void) svc_sendreply(%s, (xdrproc_t) xdr_void, (char *)NULL);\n"
: "\t\t(void) svc_sendreply(%s, xdr_void, (char *)NULL);\n",
TRANSP);
print_return("\t\t");
fprintf(fout, "\n");
}
for (proc = vp->procs; proc != NULL; proc = proc->next) {
fprintf(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)
fprintf(fout,
"\t\t%s = (char *(*)(char *, struct svc_req *)) ",
ROUTINE);
else
fprintf(fout, "\t\t%s = (char *(*)()) ", ROUTINE);
if (newstyle) { /* new style: calls internal routine */
fprintf(fout,"_");
}
if (!newstyle)
pvname_svc(proc->proc_name, vp->vers_num);
else
pvname(proc->proc_name, vp->vers_num);
fprintf(fout, ";\n");
fprintf(fout, "\t\tbreak;\n\n");
}
fprintf(fout, "\tdefault:\n");
printerr("noproc", TRANSP);
print_return("\t\t");
fprintf(fout, "\t}\n");
fprintf(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");
fprintf(fout, "\t}\n");
if (Cflag)
fprintf(fout, "\t%s = (*%s)((char *)&%s, %s);\n",
RESULT, ROUTINE, ARG, RQSTP);
else
fprintf(fout, "\t%s = (*%s)(&%s, %s);\n",
RESULT, ROUTINE, ARG, RQSTP);
fprintf(fout,
"\tif (%s != NULL && !svc_sendreply(%s, xdr_%s, %s)) {\n",
RESULT, TRANSP, RESULT, RESULT);
printerr("systemerr", TRANSP);
fprintf(fout, "\t}\n");
printif ("freeargs", TRANSP, "(caddr_t) &", ARG);
(void) snprintf(_errbuf, sizeof _errbuf, "unable to free arguments");
print_err_message("\t\t");
fprintf(fout, "\t\texit(1);\n");
fprintf(fout, "\t}\n");
print_return("\t");
fprintf(fout, "}\n");
}
}
static void
printerr(err, transp)
char *err;
char *transp;
{
fprintf(fout, "\t\tsvcerr_%s(%s);\n", err, transp);
}
static void
printif(proc, transp, prefix, arg)
char *proc;
char *transp;
char *prefix;
char *arg;
{
fprintf(fout, "\tif (!svc_%s(%s, xdr_%s, %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;
{
fprintf(fout, "\tSVCXPRT *%s;\n", TRANSP);
fprintf(fout, "\tint sock;\n");
fprintf(fout, "\tint proto;\n");
fprintf(fout, "\tstruct sockaddr_in saddr;\n");
fprintf(fout, "\tint asize = sizeof (saddr);\n");
fprintf(fout, "\n");
fprintf(fout,
"\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n");
fprintf(fout, "\t\tint ssize = sizeof (int);\n\n");
fprintf(fout, "\t\tif (saddr.sin_family != AF_INET)\n");
fprintf(fout, "\t\t\texit(1);\n");
fprintf(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n");
fprintf(fout, "\t\t (char *)&_rpcfdtype, &ssize) == -1)\n");
fprintf(fout, "\t\t\texit(1);\n");
fprintf(fout, "\t\tsock = 0;\n");
fprintf(fout, "\t\t_rpcpmstart = 1;\n");
fprintf(fout, "\t\tproto = 0;\n");
open_log_file(infile, "\t\t");
fprintf(fout, "\t} else {\n");
write_rpc_svc_fg(infile, "\t\t");
fprintf(fout, "\t\tsock = RPC_ANYSOCK;\n");
print_pmapunset("\t\t");
fprintf(fout, "\t}\n");
}
static void
print_return(space)
char *space;
{
if (exitnow)
fprintf(fout, "%sexit(0);\n", space);
else {
if (timerflag)
fprintf(fout, "%s_rpcsvcdirty = 0;\n", space);
fprintf(fout, "%sreturn;\n", space);
}
}
static void
print_pmapunset(space)
char *space;
{
version_list *vp;
definition *def;
list *l;
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) {
fprintf(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)
fprintf(fout, "%ssyslog(LOG_ERR, \"%%s\", \"%s\");\n", space, _errbuf);
else if (inetdflag || pmflag)
fprintf(fout, "%s_msgout(\"%s\");\n", space, _errbuf);
else
fprintf(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();
if (callerflag) /*EVAS*/
write_caller_func(); /*EVAS*/
}
/*
* Write the _msgout function
*/
void
write_msg_out()
{
fprintf(fout, "\n");
fprintf(fout, "static\n");
if (!Cflag) {
fprintf(fout, "void _msgout(msg)\n");
fprintf(fout, "\tchar *msg;\n");
} else {
fprintf(fout, "void _msgout(char *msg)\n");
}
fprintf(fout, "{\n");
fprintf(fout, "#ifdef RPC_SVC_FG\n");
if (inetdflag || pmflag)
fprintf(fout, "\tif (_rpcpmstart)\n");
fprintf(fout, "\t\tsyslog(LOG_ERR, \"%%s\", msg);\n");
fprintf(fout, "\telse {\n");
fprintf(fout, "\t\t(void) write(STDERR_FILENO, msg, strlen(msg));\n");
fprintf(fout, "\t\t(void) write(STDERR_FILENO, \"\\n\", 1);\n");
fprintf(fout, "\t}\n#else\n");
fprintf(fout, "\tsyslog(LOG_ERR, \"%%s\", msg);\n");
fprintf(fout, "#endif\n");
fprintf(fout, "}\n");
}
/*
* Write the timeout function
*/
static void
write_timeout_func()
{
if (!timerflag)
return;
fprintf(fout, "\n");
fprintf(fout, "static void\n");
fprintf(fout, "closedown()\n");
fprintf(fout, "{\n");
fprintf(fout, "\tint save_errno = errno;\n\n");
fprintf(fout, "\tif (_rpcsvcdirty == 0) {\n");
fprintf(fout, "\t\textern fd_set *__svc_fdset;\n");
fprintf(fout, "\t\textern int __svc_fdsetsize;\n");
fprintf(fout, "\t\tint i, openfd;\n");
if (tirpcflag && pmflag) {
fprintf(fout, "\t\tstruct t_info tinfo;\n\n");
fprintf(fout, "\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n");
} else {
fprintf(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n");
}
fprintf(fout, "\t\t\t_exit(0);\n");
fprintf(fout, "\t\tfor (i = 0, openfd = 0; i < __svc_fdsetsize && openfd < 2; i++)\n");
fprintf(fout, "\t\t\tif (FD_ISSET(i, __svc_fdset))\n");
fprintf(fout, "\t\t\t\topenfd++;\n");
fprintf(fout, "\t\tif (openfd <= (_rpcpmstart?0:1))\n");
fprintf(fout, "\t\t\t_exit(0);\n");
fprintf(fout, "\t}\n");
fprintf(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN);\n");
fprintf(fout, "\terrno = save_errno;\n");
fprintf(fout, "}\n");
}
static void
write_caller_func() /*EVAS*/
{
#define P(s) fprintf(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[256];\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(infile, netflag)
char *infile;
int netflag;
{
list *l;
definition *def;
version_list *vp;
fprintf(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n");
fprintf(fout, "\t\t(!strcmp(mname, \"sockmod\") ||");
fprintf(fout, " !strcmp(mname, \"timod\"))) {\n");
fprintf(fout, "\t\tchar *netid;\n");
if (!netflag) { /* Not included by -n option */
fprintf(fout, "\t\tstruct netconfig *nconf = NULL;\n");
fprintf(fout, "\t\tSVCXPRT *%s;\n", TRANSP);
}
if (timerflag)
fprintf(fout, "\t\tint pmclose;\n");
/* not necessary, defined in /usr/include/stdlib */
/* fprintf(fout, "\t\textern char *getenv();\n");*/
fprintf(fout, "\n");
fprintf(fout, "\t\t_rpcpmstart = 1;\n");
if (logflag)
open_log_file(infile, "\t\t");
fprintf(fout, "\t\tif ((netid = getenv(\"NLSPROVIDER\")) == NULL) {\n");
snprintf(_errbuf, sizeof _errbuf, "cannot get transport name");
print_err_message("\t\t\t");
fprintf(fout, "\t\t} else if ((nconf = getnetconfigent(netid)) == NULL) {\n");
snprintf(_errbuf, sizeof _errbuf, "cannot get transport info");
print_err_message("\t\t\t");
fprintf(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
*/
fprintf(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n");
fprintf(fout, "\t\t\tif (ioctl(0, I_POP, 0) || ioctl(0, I_PUSH, \"timod\")) {\n");
snprintf(_errbuf, sizeof _errbuf, "could not get the right module");
print_err_message("\t\t\t\t");
fprintf(fout, "\t\t\t\texit(1);\n");
fprintf(fout, "\t\t\t}\n");
fprintf(fout, "\t\t}\n");
if (timerflag)
fprintf(fout, "\t\tpmclose = (t_getstate(0) != T_DATAXFER);\n");
fprintf(fout, "\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) == NULL) {\n",
TRANSP);
snprintf(_errbuf, sizeof _errbuf, "cannot create server handle");
print_err_message("\t\t\t");
fprintf(fout, "\t\t\texit(1);\n");
fprintf(fout, "\t\t}\n");
fprintf(fout, "\t\tif (nconf)\n");
fprintf(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) {
fprintf(fout,
"\t\tif (!svc_reg(%s, %s, %s, ",
TRANSP, def->def_name, vp->vers_name);
pvname(def->def_name, vp->vers_num);
fprintf(fout, ", 0)) {\n");
(void) snprintf(_errbuf, sizeof _errbuf, "unable to register (%s, %s).",
def->def_name, vp->vers_name);
print_err_message("\t\t\t");
fprintf(fout, "\t\t\texit(1);\n");
fprintf(fout, "\t\t}\n");
}
}
if (timerflag) {
fprintf(fout, "\t\tif (pmclose) {\n");
fprintf(fout, "\t\t\t(void) signal(SIGALRM, %s closedown);\n",
Cflag? "(SIG_PF)" : "(void(*)())");
fprintf(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n");
fprintf(fout, "\t\t}\n");
}
fprintf(fout, "\t\tsvc_run();\n");
fprintf(fout, "\t\texit(1);\n");
fprintf(fout, "\t\t/* NOTREACHED */\n");
fprintf(fout, "\t}\n");
}
/*
* Support for backgrounding the server if self started.
*/
static void
write_rpc_svc_fg(infile, sp)
char *infile;
char *sp;
{
fprintf(fout, "#ifndef RPC_SVC_FG\n");
fprintf(fout, "%sint size;\n", sp);
if (tirpcflag)
fprintf(fout, "%sstruct rlimit rl;\n", sp);
if (inetdflag) {
fprintf(fout, "%sint i;\n\n", sp);
fprintf(fout, "%spid_t pid;\n\n", sp);
}
fprintf(fout, "%spid = fork();\n", sp);
fprintf(fout, "%sif (pid < 0) {\n", sp);
fprintf(fout, "%s\tperror(\"cannot fork\");\n", sp);
fprintf(fout, "%s\texit(1);\n", sp);
fprintf(fout, "%s}\n", sp);
fprintf(fout, "%sif (pid)\n", sp);
fprintf(fout, "%s\texit(0);\n", sp);
/* get number of file descriptors */
if (tirpcflag) {
fprintf(fout, "%srl.rlim_max = 0;\n", sp);
fprintf(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp);
fprintf(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp);
fprintf(fout, "%s\texit(1);\n", sp);
} else {
fprintf(fout, "%ssize = getdtablesize();\n", sp);
}
fprintf(fout, "%sfor (i = 0; i < size; i++)\n", sp);
fprintf(fout, "%s\t(void) close(i);\n", sp);
/* Redirect stderr and stdout to console */
fprintf(fout, "%si = open(\"/dev/console\", 2);\n", sp);
fprintf(fout, "%s(void) dup2(i, 1);\n", sp);
fprintf(fout, "%s(void) dup2(i, 2);\n", sp);
/* This removes control of the controlling terminal */
if (tirpcflag)
fprintf(fout, "%ssetsid();\n", sp);
else {
fprintf(fout, "%si = open(\"/dev/tty\", 2);\n", sp);
fprintf(fout, "%sif (i >= 0) {\n", sp);
fprintf(fout, "%s\t(void) ioctl(i, TIOCNOTTY, (char *)NULL);\n", sp);
fprintf(fout, "%s\t(void) close(i);\n", sp);
fprintf(fout, "%s}\n", sp);
}
if (!logflag)
open_log_file(infile, sp);
fprintf(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';
fprintf(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;
fprintf(fout, "\n");
if (inetdflag) {
fprintf(fout, "\tif (_rpcfdtype == 0 || _rpcfdtype == %s) {\n",
isudp ? "SOCK_DGRAM" : "SOCK_STREAM");
}
if (inetdflag && streq(transp, "tcp")) {
fprintf(fout, "%s\tif (_rpcpmstart)\n", sp);
fprintf(fout, "%s\t\t%s = svc%s_create(%s",
sp, TRANSP, "fd", inetdflag? "sock": "RPC_ANYSOCK");
if (!isudp)
fprintf(fout, ", 0, 0");
fprintf(fout, ");\n");
fprintf(fout, "%s\telse\n", sp);
fprintf(fout, "%s\t\t%s = svc%s_create(%s",
sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK");
if (!isudp)
fprintf(fout, ", 0, 0");
fprintf(fout, ");\n");
} else {
fprintf(fout, "%s\t%s = svc%s_create(%s",
sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK");
if (!isudp)
fprintf(fout, ", 0, 0");
fprintf(fout, ");\n");
}
fprintf(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP);
(void) snprintf(_errbuf, sizeof _errbuf, "cannot create %s service.", transp);
(void) snprintf(tmpbuf, sizeof tmpbuf, "%s\t\t", sp);
print_err_message(tmpbuf);
fprintf(fout, "%s\t\texit(1);\n", sp);
fprintf(fout, "%s\t}\n", sp);
if (inetdflag) {
fprintf(fout, "%s\tif (!_rpcpmstart)\n\t", sp);
fprintf(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) {
fprintf(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)
fprintf(fout, ", proto)) {\n");
else
fprintf(fout, ", IPPROTO_%s)) {\n",
isudp ? "UDP": "TCP");
(void) snprintf(_errbuf, sizeof _errbuf, "unable to register (%s, %s, %s).",
def->def_name, vp->vers_name, transp);
print_err_message(tmpbuf);
fprintf(fout, "%s\t\texit(1);\n", sp);
fprintf(fout, "%s\t}\n", sp);
}
}
if (inetdflag)
fprintf(fout, "\t}\n");
}