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glibc/sunrpc/rpc_svcout.c
Jakub Jelinek 0ecb606cb6 2.5-18.1
2007-07-12 18:26:36 +00:00

1108 lines
30 KiB
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 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
*/
/*
* From: @(#)rpc_svcout.c 1.29 89/03/30 (C) 1987 SMI
*/
#if defined(LIBC_SCCS) && !defined(lint)
static const char svcout_rcsid[] =
"$Id$";
#endif
/*
* rpc_svcout.c, Server-skeleton outputter for the RPC protocol compiler
*/
#include <stdio.h>
#include <string.h>
#include "rpc_parse.h"
#include "rpc_util.h"
#include "proto.h"
static const char RQSTP[] = "rqstp";
static const char TRANSP[] = "transp";
static const char ARG[] = "argument";
static const char RESULT[] = "result";
static const char ROUTINE[] = "local";
static char RETVAL[] = "retval";
char _errbuf[256]; /* For all messages */
static void internal_proctype (const proc_list * plist);
static void p_xdrfunc (const char *rname, const char *typename);
static void write_real_program (const definition * def);
static void write_program (const definition * def, const char *storage);
static void printerr (const char *err, const char *transp);
static void printif (const char *proc, const char *transp, const char *arg);
static void write_inetmost (const char *infile);
static void print_return (const char *space);
static void print_pmapunset (const char *space);
static void print_err_message (const char *space);
static void write_timeout_func (void);
static void write_pm_most (const char *infile, int netflag);
static void write_rpc_svc_fg (const char *infile, const char *sp);
static void open_log_file (const char *infile, const char *sp);
static void
p_xdrfunc (const char *rname, const char *typename)
{
if (Cflag)
f_print (fout, "\t\t_xdr_%s = (xdrproc_t) xdr_%s;\n", rname,
stringfix (typename));
else
f_print (fout, "\t\t_xdr_%s = xdr_%s;\n", rname, stringfix (typename));
}
void
internal_proctype (const 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 /* our name */ , int netflag, int nomain)
{
if (inetdflag || pmflag)
{
const char *var_type;
#ifdef __GNU_LIBRARY__
/* WHY? */
var_type = (nomain ? "extern" : "");
#else
var_type = (nomain ? "extern" : "static");
#endif
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, "\t\t/* Whether Stream or Datagram ? */\n");
}
if (timerflag)
{
#if 0
f_print (fout, "%s int _rpcsvcdirty;", var_type);
f_print (fout, "\t/* Still serving ? */\n");
#else
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");
}
#endif
}
write_svc_aux (nomain);
}
/* write out dispatcher and stubs */
write_programs (nomain ? NULL : "static");
if (nomain)
return;
#ifdef __GNU_LIBRARY__
if (Cflag)
f_print (fout, "\nint\nmain (int argc, char **argv)\n");
else
{
f_print (fout, "\nint\nmain (argc, argv)\n");
f_print (fout, "\tint argc;\n");
f_print (fout, "\tchar **argv;\n");
}
#else
f_print (fout, "\nmain()\n");
#endif
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 (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 /*, transp *//* ?!?... */ );
f_print (fout, "%s\tif (%s == NULL) {\n", sp, TRANSP);
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, %s closedown);\n",
Cflag ? "(SIG_PF)" : "(void(*)())");
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 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 (const 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");
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");
}
f_print (fout, " struct svc_req *%s;\n", RQSTP);
}
f_print (fout, "{\n");
f_print (fout, "\treturn (");
if (Cflag || mtflag)
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 (const 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);
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)
if (!streq (proc->res_type, "void"))
{
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 0
f_print (fout, "\t_rpcsvcdirty = 1;\n");
#else
{
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");
}
#endif
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, (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, "\tmemset ((char *)&%s, 0, sizeof (%s));\n", ARG, ARG);
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, (xdrproc_t) _xdr_%s, (char *)&%s)) {\n",
RETVAL, TRANSP, RESULT, RESULT);
else
f_print(fout,
"\tif (%s != NULL && !svc_sendreply(%s, (xdrproc_t) _xdr_%s, %s)) {\n",
RESULT, TRANSP, RESULT, RESULT);
printerr ("systemerr", TRANSP);
f_print (fout, "\t}\n");
printif ("freeargs", TRANSP, ARG);
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 *arg)
{
f_print (fout, "\tif (!svc_%s (%s, (xdrproc_t) _xdr_%s, (caddr_t) &%s)) {\n",
proc, transp, arg, arg);
}
int
nullproc (const 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, "\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 (const char *space)
{
if (exitnow)
f_print (fout, "%sexit (0);\n", space);
else
{
if (timerflag)
{
#if 0
f_print (fout, "%s_rpcsvcdirty = 0;\n", space);
#else
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);
#endif
}
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, "%spmap_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\", \"%s\");\n", space, _errbuf);
else if (inetdflag || pmflag)
f_print (fout, "%s_msgout (\"%s\");\n", space, _errbuf);
else
f_print (fout, "%sfprintf (stderr, \"%%s\", \"%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
*/
void
write_msg_out (void)
{
f_print (fout, "\n");
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\tfprintf (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 (int sig)\n");
else
f_print (fout, "closedown (sig)\n\tint sig;\n");
f_print (fout, "{\n");
#if defined (__GNU_LIBRARY__) && 0
f_print (fout, "\t(void) signal (sig, %s closedown);\n",
Cflag ? "(SIG_PF)" : "(void(*)())");
#endif
if (mtflag)
f_print(fout, "\tmutex_lock(&_svcstate_lock);\n");
#if 0
f_print (fout, "\tif (_rpcsvcdirty == 0) {\n");
#else
f_print(fout, "\tif (_rpcsvcstate == _IDLE) {\n");
#endif
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, "\talarm (_RPCSVC_CLOSEDOWN);\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;
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");
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, %s closedown);\n",
Cflag ? "(SIG_PF)" : "(void(*)())");
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 (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") || streq (transp, "udp6"))
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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