usr.bin/rpcgen/rpc_svcout.c

   1 /*
   2  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
   3  * unrestricted use provided that this legend is included on all tape
   4  * media and as a part of the software program in whole or part.  Users
   5  * may copy or modify Sun RPC without charge, but are not authorized
   6  * to license or distribute it to anyone else except as part of a product or
   7  * program developed by the user.
   8  *
   9  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  10  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  11  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  12  *
  13  * Sun RPC is provided with no support and without any obligation on the
  14  * part of Sun Microsystems, Inc. to assist in its use, correction,
  15  * modification or enhancement.
  16  *
  17  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  18  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  19  * OR ANY PART THEREOF.
  20  *
  21  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  22  * or profits or other special, indirect and consequential damages, even if
  23  * Sun has been advised of the possibility of such damages.
  24  *
  25  * Sun Microsystems, Inc.
  26  * 2550 Garcia Avenue
  27  * Mountain View, California  94043
  28  *
  29  * @(#)rpc_svcout.c 1.29 89/03/30 (C) 1987 SMI
  30  * $FreeBSD: src/usr.bin/rpcgen/rpc_svcout.c,v 1.6.6.1 2001/07/19 01:38:22 kris Exp $
  31  * $DragonFly: src/usr.bin/rpcgen/rpc_svcout.c,v 1.3 2003/11/03 19:31:32 eirikn Exp $
  32  */
  33
  34 #ident  "@(#)rpc_svcout.c       1.4     90/04/13 SMI"
  35
  36 /*
  37  * rpc_svcout.c, Server-skeleton outputter for the RPC protocol compiler
  38  * Copyright (C) 1987, Sun Microsystems, Inc.
  39  */
  40 #include <stdio.h>
  41 #include <string.h>
  42 #include "rpc_parse.h"
  43 #include "rpc_util.h"
  44
  45 static char RQSTP[] = "rqstp";
  46 static char TRANSP[] = "transp";
  47 static char ARG[] = "argument";
  48 static char RESULT[] = "result";
  49 static char ROUTINE[] = "local";
  50 static char RETVAL[] = "retval";
  51
  52 char _errbuf[256];      /* For all messages */
  53
  54 void internal_proctype( proc_list * );
  55 static void write_real_program( definition * );
  56 static void write_program( definition *, char * );
  57 static void printerr( char *, char * );
  58 static void printif( char *, char *, char *, char * );
  59 static void write_inetmost( char * );
  60 static void print_return( char * );
  61 static void print_pmapunset( char * );
  62 static void print_err_message( char * );
  63 static void write_timeout_func( void );
  64 static void write_pm_most( char *, int );
  65 static void write_rpc_svc_fg( char *, char * );
  66 static void open_log_file( char *, char * );
  67 static void write_msg_out( void );
  68 int nullproc( proc_list * );
  69
  70
  71 static void
  72 p_xdrfunc(rname, typename)
  73 char* rname;
  74 char* typename;
  75 {
  76         if (Cflag)
  77                 f_print(fout, "\t\txdr_%s = (xdrproc_t) xdr_%s;\n",
  78                         rname, stringfix(typename));
  79         else
  80                 f_print(fout, "\t\txdr_%s = xdr_%s;\n",
  81                         rname, stringfix(typename));
  82 }
  83
  84 void
  85 internal_proctype(plist)
  86         proc_list *plist;
  87 {
  88         f_print(fout, "static ");
  89         ptype(plist->res_prefix, plist->res_type, 1);
  90         f_print(fout, "*");
  91 }
  92
  93
  94 /*
  95  * write most of the service, that is, everything but the registrations.
  96  */
  97 void
  98 write_most(infile, netflag, nomain)
  99         char *infile;           /* our name */
 100         int netflag;
 101         int nomain;
 102 {
 103         if (inetdflag || pmflag) {
 104                 char* var_type;
 105                 var_type = (nomain? "extern" : "static");
 106                 f_print(fout, "%s int _rpcpmstart;", var_type);
 107                 f_print(fout, "\t\t/* Started by a port monitor ? */\n");
 108                 if (!tirpcflag) {
 109                         f_print(fout, "%s int _rpcfdtype;", var_type);
 110                         f_print(fout, "\n\t\t /* Whether Stream or \
 111 Datagram ? */\n");
 112                 }
 113
 114                 if (timerflag) {
 115                         f_print(fout, " /* States a server can be in \
 116 wrt request */\n\n");
 117                         f_print(fout, "#define\t_IDLE 0\n");
 118                         f_print(fout, "#define\t_SERVED 1\n");
 119                         f_print(fout, "#define\t_SERVING 2\n\n");
 120                         f_print(fout, "static int _rpcsvcstate = _IDLE;");
 121                         f_print(fout, "\t /* Set when a request is \
 122 serviced */\n");
 123
 124                         if (mtflag) {
 125                                 f_print(fout, "mutex_t _svcstate_lock;");
 126                                 f_print(fout, "\t\t\t/* Mutex lock for variable _rpcsvcstate */\n");
 127
 128                         }
 129
 130                 }
 131
 132                 write_svc_aux(nomain);
 133         }
 134         /* write out dispatcher and stubs */
 135         write_programs(nomain? (char *)NULL : "static");
 136
 137         if (nomain)
 138                 return;
 139
 140         f_print(fout, "\nmain()\n");
 141         f_print(fout, "{\n");
 142         if (inetdflag) {
 143                 write_inetmost(infile);
 144                 /* Includes call to write_rpc_svc_fg() */
 145         } else {
 146                 if (tirpcflag) {
 147                         if (netflag) {
 148                                 f_print(fout,
 149                                         "\tregister SVCXPRT *%s;\n", TRANSP);
 150                                 f_print(fout,
 151                                         "\tstruct netconfig *nconf = NULL;\n");
 152                         }
 153                         f_print(fout, "\tpid_t pid;\n");
 154                         f_print(fout, "\tint i;\n");
 155                         f_print(fout, "\tchar mname[FMNAMESZ + 1];\n\n");
 156
 157                         if (mtflag & timerflag)
 158                                 f_print(fout, "\tmutex_init(&_svcstate_lock, USYNC_THREAD, NULL);\n");
 159
 160                         write_pm_most(infile, netflag);
 161                         f_print(fout, "\telse {\n");
 162                         write_rpc_svc_fg(infile, "\t\t");
 163                         f_print(fout, "\t}\n");
 164                 } else {
 165                         f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP);
 166                         f_print(fout, "\n");
 167                         print_pmapunset("\t");
 168                 }
 169         }
 170
 171         if (logflag && !inetdflag) {
 172                 open_log_file(infile, "\t");
 173         }
 174 }
 175
 176 /*
 177  * write a registration for the given transport
 178  */
 179 void
 180 write_netid_register(transp)
 181         char *transp;
 182 {
 183         list *l;
 184         definition *def;
 185         version_list *vp;
 186         char *sp;
 187         char tmpbuf[32];
 188
 189         sp = "";
 190         f_print(fout, "\n");
 191         f_print(fout, "%s\tnconf = getnetconfigent(\"%s\");\n", sp, transp);
 192         f_print(fout, "%s\tif (nconf == NULL) {\n", sp);
 193         (void) sprintf(_errbuf, "cannot find %s netid.", transp);
 194         sprintf(tmpbuf, "%s\t\t", sp);
 195         print_err_message(tmpbuf);
 196         f_print(fout, "%s\t\texit(1);\n", sp);
 197         f_print(fout, "%s\t}\n", sp);
 198         f_print(fout, "%s\t%s = svc_tli_create(RPC_ANYFD, nconf, 0, 0, 0);\n",
 199                 sp, TRANSP);
 200         f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP);
 201         (void) sprintf(_errbuf, "cannot create %s service.", transp);
 202         print_err_message(tmpbuf);
 203         f_print(fout, "%s\t\texit(1);\n", sp);
 204         f_print(fout, "%s\t}\n", sp);
 205
 206         for (l = defined; l != NULL; l = l->next) {
 207                 def = (definition *) l->val;
 208                 if (def->def_kind != DEF_PROGRAM) {
 209                         continue;
 210                 }
 211                 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
 212                         f_print(fout,
 213                                 "%s\t(void) rpcb_unset(%s, %s, nconf);\n",
 214                                 sp, def->def_name, vp->vers_name);
 215                         f_print(fout,
 216                                 "%s\tif (!svc_reg(%s, %s, %s, ",
 217                                 sp, TRANSP, def->def_name, vp->vers_name);
 218                         pvname(def->def_name, vp->vers_num);
 219                         f_print(fout, ", nconf)) {\n");
 220                         (void) sprintf(_errbuf,
 221                                 "unable to register (%s, %s, %s).",
 222                                 def->def_name, vp->vers_name, transp);
 223                         print_err_message(tmpbuf);
 224                         f_print(fout, "%s\t\texit(1);\n", sp);
 225                         f_print(fout, "%s\t}\n", sp);
 226                 }
 227         }
 228         f_print(fout, "%s\tfreenetconfigent(nconf);\n", sp);
 229 }
 230
 231 /*
 232  * write a registration for the given transport for TLI
 233  */
 234 void
 235 write_nettype_register(transp)
 236         char *transp;
 237 {
 238         list *l;
 239         definition *def;
 240         version_list *vp;
 241
 242         for (l = defined; l != NULL; l = l->next) {
 243                 def = (definition *) l->val;
 244                 if (def->def_kind != DEF_PROGRAM) {
 245                         continue;
 246                 }
 247                 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
 248                         f_print(fout, "\tif (!svc_create(");
 249                         pvname(def->def_name, vp->vers_num);
 250                         f_print(fout, ", %s, %s, \"%s\")) {\n",
 251                                 def->def_name, vp->vers_name, transp);
 252                         (void) sprintf(_errbuf,
 253                                 "unable to create (%s, %s) for %s.",
 254                                         def->def_name, vp->vers_name, transp);
 255                         print_err_message("\t\t");
 256                         f_print(fout, "\t\texit(1);\n");
 257                         f_print(fout, "\t}\n");
 258                 }
 259         }
 260 }
 261
 262 /*
 263  * write the rest of the service
 264  */
 265 void
 266 write_rest()
 267 {
 268         f_print(fout, "\n");
 269         if (inetdflag) {
 270                 f_print(fout, "\tif (%s == (SVCXPRT *)NULL) {\n", TRANSP);
 271                 (void) sprintf(_errbuf, "could not create a handle");
 272                 print_err_message("\t\t");
 273                 f_print(fout, "\t\texit(1);\n");
 274                 f_print(fout, "\t}\n");
 275                 if (timerflag) {
 276                         f_print(fout, "\tif (_rpcpmstart) {\n");
 277                         f_print(fout,
 278                                 "\t\t(void) signal(SIGALRM, %s closedown);\n",
 279                                 Cflag? "(SIG_PF)":"(void(*)())");
 280                         f_print(fout, "\t\t(void) \
 281 alarm(_RPCSVC_CLOSEDOWN/2);\n");
 282                         f_print(fout, "\t}\n");
 283                 }
 284         }
 285         f_print(fout, "\tsvc_run();\n");
 286         (void) sprintf(_errbuf, "svc_run returned");
 287         print_err_message("\t");
 288         f_print(fout, "\texit(1);\n");
 289         f_print(fout, "\t/* NOTREACHED */\n");
 290         f_print(fout, "}\n");
 291 }
 292
 293 void
 294 write_programs(storage)
 295         char *storage;
 296 {
 297         list *l;
 298         definition *def;
 299
 300         /* write out stubs for procedure  definitions */
 301         for (l = defined; l != NULL; l = l->next) {
 302                 def = (definition *) l->val;
 303                 if (def->def_kind == DEF_PROGRAM) {
 304                         write_real_program(def);
 305                 }
 306         }
 307
 308         /* write out dispatcher for each program */
 309         for (l = defined; l != NULL; l = l->next) {
 310                 def = (definition *) l->val;
 311                 if (def->def_kind == DEF_PROGRAM) {
 312                         write_program(def, storage);
 313                 }
 314         }
 315
 316
 317 }
 318
 319 /*
 320  * write out definition of internal function (e.g. _printmsg_1(...))
 321  *  which calls server's defintion of actual function (e.g. printmsg_1(...)).
 322  *  Unpacks single user argument of printmsg_1 to call-by-value format
 323  *  expected by printmsg_1.
 324  */
 325 static void
 326 write_real_program(def)
 327         definition *def;
 328 {
 329         version_list *vp;
 330         proc_list *proc;
 331         decl_list *l;
 332
 333         if (!newstyle) return;  /* not needed for old style */
 334         for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
 335                 for (proc = vp->procs; proc != NULL; proc = proc->next) {
 336                         f_print(fout, "\n");
 337                         if (!mtflag)
 338                                 internal_proctype(proc);
 339                         else
 340                                 f_print(fout, "int");
 341                         f_print(fout, "\n_");
 342                         pvname(proc->proc_name, vp->vers_num);
 343                         if (Cflag) {
 344                                 f_print(fout, "(");
 345                                 /* arg name */
 346                                 if (proc->arg_num > 1)
 347                                         f_print(fout, proc->args.argname);
 348                                 else
 349                                         ptype(proc->args.decls->decl.prefix,
 350                                               proc->args.decls->decl.type, 0);
 351                                 if (mtflag) {
 352                                         f_print(fout, " *argp, void *%s, struct svc_req *%s)\n",
 353                                                 RESULT, RQSTP);
 354
 355
 356                                 }
 357                                 else
 358                                         f_print(fout, " *argp, struct svc_req *%s)\n",
 359                                                 RQSTP);
 360
 361                         } else {
 362                                 if (mtflag)
 363                                         f_print(fout, "(argp, %s, %s)\n", RESULT, RQSTP);
 364                                 else
 365                                         f_print(fout, "(argp, %s)\n", RQSTP);
 366                                 /* arg name */
 367                                 if (proc->arg_num > 1)
 368                                         f_print(fout, "\t%s *argp;\n",
 369                                                 proc->args.argname);
 370                                 else {
 371                                         f_print(fout, "\t");
 372                                         ptype(proc->args.decls->decl.prefix,
 373                                               proc->args.decls->decl.type, 0);
 374                                         f_print(fout, " *argp;\n");
 375                                 }
 376                                 if (mtflag)
 377                                         f_print(fout, "\tvoid *%s;\n", RESULT);
 378                                 f_print(fout, "\tstruct svc_req *%s;\n", RQSTP);
 379                         }
 380
 381                         f_print(fout, "{\n");
 382                         f_print(fout, "\treturn (");
 383                         if (Cflag || mtflag) /* for mtflag, arguments are different */
 384                                 pvname_svc(proc->proc_name, vp->vers_num);
 385                         else
 386                                 pvname(proc->proc_name, vp->vers_num);
 387                         f_print(fout, "(");
 388                         if (proc->arg_num < 2) { /* single argument */
 389                                 if (!streq(proc->args.decls->decl.type, "void"))
 390                                         f_print(fout, "*argp, "); /* non-void */
 391                         } else {
 392                                 for (l = proc->args.decls;  l != NULL;
 393                                      l = l->next)
 394                                         f_print(fout, "argp->%s, ",
 395                                                 l->decl.name);
 396                         }
 397                         if (mtflag)
 398                                 f_print(fout, "%s, ",RESULT);
 399                         f_print(fout, "%s));\n}\n", RQSTP);
 400                 }
 401         }
 402 }
 403
 404 static void
 405 write_program(def, storage)
 406         definition *def;
 407         char *storage;
 408 {
 409         version_list *vp;
 410         proc_list *proc;
 411         int filled;
 412
 413         for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
 414                 f_print(fout, "\n");
 415                 if (storage != NULL) {
 416                         f_print(fout, "%s ", storage);
 417                 }
 418                 f_print(fout, "void\n");
 419                 pvname(def->def_name, vp->vers_num);
 420
 421                 if (Cflag) {
 422                         f_print(fout, "(struct svc_req *%s, ", RQSTP);
 423                         f_print(fout, "register SVCXPRT *%s)\n", TRANSP);
 424                 } else {
 425                         f_print(fout, "(%s, %s)\n", RQSTP, TRANSP);
 426                         f_print(fout, " struct svc_req *%s;\n", RQSTP);
 427                         f_print(fout, " register SVCXPRT *%s;\n", TRANSP);
 428                 }
 429
 430                 f_print(fout, "{\n");
 431
 432                 filled = 0;
 433                 f_print(fout, "\tunion {\n");
 434                 for (proc = vp->procs; proc != NULL; proc = proc->next) {
 435                         if (proc->arg_num < 2) { /* single argument */
 436                                 if (streq(proc->args.decls->decl.type,
 437                                           "void")) {
 438                                         continue;
 439                                 }
 440                                 filled = 1;
 441                                 f_print(fout, "\t\t");
 442                                 ptype(proc->args.decls->decl.prefix,
 443                                       proc->args.decls->decl.type, 0);
 444                                 pvname(proc->proc_name, vp->vers_num);
 445                                 f_print(fout, "_arg;\n");
 446
 447                         } else {
 448                                 filled = 1;
 449                                 f_print(fout, "\t\t%s", proc->args.argname);
 450                                 f_print(fout, " ");
 451                                 pvname(proc->proc_name, vp->vers_num);
 452                                 f_print(fout, "_arg;\n");
 453                         }
 454                 }
 455                 if (!filled) {
 456                         f_print(fout, "\t\tint fill;\n");
 457                 }
 458                 f_print(fout, "\t} %s;\n", ARG);
 459
 460                 if (mtflag) {
 461                         f_print(fout, "\tunion {\n");
 462                         for (proc = vp->procs; proc != NULL; proc = proc->next) {
 463                                 f_print(fout, "\t\t");
 464                                 ptype(proc->res_prefix, proc->res_type, 0);
 465                                 pvname(proc->proc_name, vp->vers_num);
 466                                 f_print(fout, "_res;\n");
 467                         }
 468                         f_print(fout, "\t} %s;\n", RESULT);
 469                         f_print(fout, "\tbool_t %s;\n", RETVAL);
 470
 471                 } else
 472                         f_print(fout, "\tchar *%s;\n", RESULT);
 473
 474                 if (Cflag) {
 475                         f_print(fout, "\txdrproc_t xdr_%s, xdr_%s;\n",
 476                                 ARG, RESULT);
 477                         if (mtflag)
 478                                 f_print(fout,
 479                                         "\tbool_t (*%s)(char *, void *, struct svc_req *);\n",
 480                                         ROUTINE);
 481                         else
 482                                 f_print(fout,
 483                                         "\tchar *(*%s)(char *, struct svc_req *);\n",
 484                                         ROUTINE);
 485                 } else {
 486                         f_print(fout,
 487                                 "\tbool_t (*xdr_%s)(), (*xdr_%s)();\n",
 488                                 ARG, RESULT);
 489                         if (mtflag)
 490                                 f_print(fout, "\tbool_t (*%s)();\n", ROUTINE);
 491                         else
 492                                 f_print(fout, "\tchar *(*%s)();\n", ROUTINE);
 493                 }
 494                 f_print(fout, "\n");
 495
 496                 if (timerflag) {
 497                         if (mtflag)
 498                                 f_print(fout, "\tmutex_lock(&_svcstate_lock);\n");
 499
 500                         f_print(fout, "\t_rpcsvcstate = _SERVING;\n");
 501                         if (mtflag)
 502                                 f_print(fout, "\tmutex_unlock(&_svcstate_lock);\n");
 503                 }
 504
 505                 f_print(fout, "\tswitch (%s->rq_proc) {\n", RQSTP);
 506                 if (!nullproc(vp->procs)) {
 507                         f_print(fout, "\tcase NULLPROC:\n");
 508                         f_print(fout,
 509                                 Cflag
 510                                 ? "\t\t(void) svc_sendreply(%s,\n\t\t\t\
 511 (xdrproc_t) xdr_void, (char *)NULL);\n"
 512                                 : "\t\t(void) svc_sendreply(%s, xdr_void,\n\t\t\t\
 513 (char *)NULL);\n",
 514                                 TRANSP);
 515                         print_return("\t\t");
 516                         f_print(fout, "\n");
 517                 }
 518                 for (proc = vp->procs; proc != NULL; proc = proc->next) {
 519                         f_print(fout, "\tcase %s:\n", proc->proc_name);
 520                         if (proc->arg_num < 2) { /* single argument */
 521                                 p_xdrfunc(ARG, proc->args.decls->decl.type);
 522                         } else {
 523                                 p_xdrfunc(ARG, proc->args.argname);
 524                         }
 525                         p_xdrfunc(RESULT, proc->res_type);
 526
 527                         if (Cflag)
 528                                 if (mtflag)
 529                                         f_print(fout,
 530                                                 "\t\t%s = (bool_t (*) (char *,  void *,  struct svc_req *))",
 531                                                 ROUTINE);
 532                                 else
 533                                         f_print(fout,
 534                                                 "\t\t%s = (char *(*)(char *, struct svc_req *)) ",
 535                                                 ROUTINE);
 536                         else
 537                                 if (mtflag)
 538                                         f_print(fout, "\t\t%s = (bool_t (*)()) ",
 539                                                 ROUTINE);
 540                                 else
 541
 542                                         f_print(fout, "\t\t%s = (char *(*)()) ",
 543                                                 ROUTINE);
 544                         if (newstyle) { /* new style: calls internal routine */
 545                                 f_print(fout, "_");
 546                         }
 547                         if ((Cflag || mtflag) && !newstyle)
 548                                 pvname_svc(proc->proc_name, vp->vers_num);
 549                         else
 550                                 pvname(proc->proc_name, vp->vers_num);
 551                         f_print(fout, ";\n");
 552                         f_print(fout, "\t\tbreak;\n\n");
 553                 }
 554                 f_print(fout, "\tdefault:\n");
 555                 printerr("noproc", TRANSP);
 556                 print_return("\t\t");
 557                 f_print(fout, "\t}\n");
 558
 559                 f_print(fout,
 560                         "\t(void) memset((char *)&%s, 0, sizeof (%s));\n",
 561                         ARG, ARG);
 562                 if (Cflag)
 563                         printif("getargs", TRANSP, "(caddr_t) &", ARG);
 564                 else
 565                         printif("getargs", TRANSP, "&", ARG);
 566                 printerr("decode", TRANSP);
 567                 print_return("\t\t");
 568                 f_print(fout, "\t}\n");
 569
 570                 if (!mtflag)
 571                         if (Cflag)
 572                                 f_print(fout, "\t%s = (*%s)((char *)&%s, %s);\n",
 573                                         RESULT, ROUTINE, ARG, RQSTP);
 574                         else
 575                                 f_print(fout, "\t%s = (*%s)(&%s, %s);\n",
 576                                         RESULT, ROUTINE, ARG, RQSTP);
 577                 else
 578                         if (Cflag)
 579                                 f_print(fout, "\t%s = (bool_t) (*%s)((char *)&%s, (void *)&%s, %s);\n",
 580                                         RETVAL, ROUTINE, ARG, RESULT, RQSTP);
 581                         else
 582                                 f_print(fout, "\t%s = (bool_t) (*%s)(&%s, &%s, %s);\n",
 583                                         RETVAL, ROUTINE, ARG, RESULT, RQSTP);
 584
 585
 586
 587
 588                 if (mtflag)
 589                         f_print(fout,
 590                                 "\tif (%s > 0 && !svc_sendreply(%s, xdr_%s, (char *)&%s)) {\n",
 591                                 RETVAL, TRANSP, RESULT, RESULT);
 592                 else
 593                         f_print(fout,
 594                                 "\tif (%s != NULL && !svc_sendreply(%s, xdr_%s, %s)) {\n",
 595                                 RESULT, TRANSP, RESULT, RESULT);
 596
 597                 printerr("systemerr", TRANSP);
 598                 f_print(fout, "\t}\n");
 599
 600                 if (Cflag)
 601                         printif("freeargs", TRANSP, "(caddr_t) &", ARG);
 602                 else
 603                         printif("freeargs", TRANSP, "&", ARG);
 604                 (void) sprintf(_errbuf, "unable to free arguments");
 605                 print_err_message("\t\t");
 606                 f_print(fout, "\t\texit(1);\n");
 607                 f_print(fout, "\t}\n");
 608                 /* print out free routine */
 609                 if (mtflag) {
 610                         f_print(fout,"\tif (!");
 611                         pvname(def->def_name, vp->vers_num);
 612                         f_print(fout,"_freeresult(%s, xdr_%s, (caddr_t) &%s))\n",
 613                                 TRANSP, RESULT, RESULT);
 614                         (void) sprintf(_errbuf, "unable to free results");
 615                         print_err_message("\t\t");
 616                         f_print(fout, "\n");
 617                 };
 618                 print_return("\t");
 619                 f_print(fout, "}\n");
 620         }
 621 }
 622
 623 static void
 624 printerr(err, transp)
 625         char *err;
 626         char *transp;
 627 {
 628         f_print(fout, "\t\tsvcerr_%s(%s);\n", err, transp);
 629 }
 630
 631 static void
 632 printif(proc, transp, prefix, arg)
 633         char *proc;
 634         char *transp;
 635         char *prefix;
 636         char *arg;
 637 {
 638         f_print(fout, "\tif (!svc_%s(%s, xdr_%s, %s%s)) {\n",
 639                 proc, transp, arg, prefix, arg);
 640 }
 641
 642 int
 643 nullproc(proc)
 644         proc_list *proc;
 645 {
 646         for (; proc != NULL; proc = proc->next) {
 647                 if (streq(proc->proc_num, "0")) {
 648                         return (1);
 649                 }
 650         }
 651         return (0);
 652 }
 653
 654 static void
 655 write_inetmost(infile)
 656         char *infile;
 657 {
 658         f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP);
 659         f_print(fout, "\tint sock;\n");
 660         f_print(fout, "\tint proto;\n");
 661         f_print(fout, "\tstruct sockaddr_in saddr;\n");
 662         f_print(fout, "\tint asize = sizeof (saddr);\n");
 663         f_print(fout, "\n");
 664         f_print(fout,
 665         "\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n");
 666         f_print(fout, "\t\tint ssize = sizeof (int);\n\n");
 667         f_print(fout, "\t\tif (saddr.sin_family != AF_INET)\n");
 668         f_print(fout, "\t\t\texit(1);\n");
 669         f_print(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n");
 670         f_print(fout, "\t\t\t\t(char *)&_rpcfdtype, &ssize) == -1)\n");
 671         f_print(fout, "\t\t\texit(1);\n");
 672         f_print(fout, "\t\tsock = 0;\n");
 673         f_print(fout, "\t\t_rpcpmstart = 1;\n");
 674         f_print(fout, "\t\tproto = 0;\n");
 675         open_log_file(infile, "\t\t");
 676         f_print(fout, "\t} else {\n");
 677         write_rpc_svc_fg(infile, "\t\t");
 678         f_print(fout, "\t\tsock = RPC_ANYSOCK;\n");
 679         print_pmapunset("\t\t");
 680         f_print(fout, "\t}\n");
 681 }
 682
 683 static void
 684 print_return(space)
 685         char *space;
 686 {
 687         if (exitnow)
 688                 f_print(fout, "%sexit(0);\n", space);
 689         else {
 690                 if (timerflag) {
 691                         if (mtflag)
 692                                 f_print(fout, "%smutex_lock(&_svcstate_lock);\n", space);
 693                                 f_print(fout, "%s_rpcsvcstate = _SERVED;\n", space);
 694                         if (mtflag)
 695                                 f_print(fout, "%smutex_unlock(&_svcstate_lock);\n", space);
 696                 }
 697                 f_print(fout, "%sreturn;\n", space);
 698         }
 699 }
 700
 701 static void
 702 print_pmapunset(space)
 703         char *space;
 704 {
 705         list *l;
 706         definition *def;
 707         version_list *vp;
 708
 709         for (l = defined; l != NULL; l = l->next) {
 710                 def = (definition *) l->val;
 711                 if (def->def_kind == DEF_PROGRAM) {
 712                         for (vp = def->def.pr.versions; vp != NULL;
 713                                         vp = vp->next) {
 714                                 f_print(fout, "%s(void) pmap_unset(%s, %s);\n",
 715                                         space, def->def_name, vp->vers_name);
 716                         }
 717                 }
 718         }
 719 }
 720
 721 static void
 722 print_err_message(space)
 723         char *space;
 724 {
 725         if (logflag)
 726                 f_print(fout, "%ssyslog(LOG_ERR, \"%s\");\n", space, _errbuf);
 727         else if (inetdflag || pmflag)
 728                 f_print(fout, "%s_msgout(\"%s\");\n", space, _errbuf);
 729         else
 730                 f_print(fout, "%sfprintf(stderr, \"%s\");\n", space, _errbuf);
 731 }
 732
 733 /*
 734  * Write the server auxiliary function (_msgout, timeout)
 735  */
 736 void
 737 write_svc_aux(nomain)
 738         int nomain;
 739 {
 740         if (!logflag)
 741                 write_msg_out();
 742         if (!nomain)
 743                 write_timeout_func();
 744 }
 745
 746 /*
 747  * Write the _msgout function
 748  */
 749
 750 static void
 751 write_msg_out(void)
 752 {
 753         f_print(fout, "\n");
 754 /*
 755  * Avoid making _msgout() static -- it's useful to have it visible
 756  * in the toplevel RPC server code.
 757  */
 758         f_print(fout, "static\n");
 759
 760         if (!Cflag) {
 761                 f_print(fout, "void _msgout(msg)\n");
 762                 f_print(fout, "\tchar *msg;\n");
 763         } else {
 764                 f_print(fout, "void _msgout(char* msg)\n");
 765         }
 766         f_print(fout, "{\n");
 767         f_print(fout, "#ifdef RPC_SVC_FG\n");
 768         if (inetdflag || pmflag)
 769                 f_print(fout, "\tif (_rpcpmstart)\n");
 770         f_print(fout, "\t\tsyslog(LOG_ERR, \"%%s\", msg);\n");
 771         f_print(fout, "\telse\n");
 772         f_print(fout,
 773                 "\t\t(void) fprintf(stderr, \"%%s\\n\", msg);\n");
 774         f_print(fout, "#else\n");
 775         f_print(fout, "\tsyslog(LOG_ERR, \"%%s\", msg);\n");
 776         f_print(fout, "#endif\n");
 777         f_print(fout, "}\n");
 778 }
 779
 780 /*
 781  * Write the timeout function
 782  */
 783 static void
 784 write_timeout_func(void)
 785 {
 786         if (!timerflag)
 787                 return;
 788
 789         f_print(fout, "\n");
 790         f_print(fout, "static void\n");
 791         if (!Cflag) {
 792                 f_print(fout, "closedown(sig)\n");
 793                 f_print(fout, "\tint sig;\n");
 794         } else
 795                 f_print(fout, "closedown(int sig)\n");
 796         f_print(fout, "{\n");
 797         if (mtflag)
 798                 f_print(fout, "\tmutex_lock(&_svcstate_lock);\n");
 799         f_print(fout, "\tif (_rpcsvcstate == _IDLE) {\n");
 800         f_print(fout, "\t\textern fd_set svc_fdset;\n");
 801         f_print(fout, "\t\tstatic int size;\n");
 802         f_print(fout, "\t\tint i, openfd;\n");
 803         if (tirpcflag && pmflag) {
 804                 f_print(fout, "\t\tstruct t_info tinfo;\n\n");
 805                 f_print(fout,
 806                         "\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n");
 807         } else {
 808                 f_print(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n");
 809         }
 810         f_print(fout, "\t\t\texit(0);\n");
 811         f_print(fout, "\t\tif (size == 0) {\n");
 812         if (tirpcflag) {
 813                 f_print(fout, "\t\t\tstruct rlimit rl;\n\n");
 814                 f_print(fout, "\t\t\trl.rlim_max = 0;\n");
 815                 f_print(fout, "\t\t\tgetrlimit(RLIMIT_NOFILE, &rl);\n");
 816                 f_print(fout, "\t\t\tif ((size = rl.rlim_max) == 0) {\n");
 817
 818                 if (mtflag)
 819                         f_print(fout, "\t\t\t\tmutex_unlock(&_svcstate_lock);\n");
 820
 821                 f_print(fout, "\t\t\t\treturn;\n\t\t\t}\n");
 822         } else {
 823                 f_print(fout, "\t\t\tsize = getdtablesize();\n");
 824         }
 825         f_print(fout, "\t\t}\n");
 826         f_print(fout,
 827                 "\t\tfor (i = 0, openfd = 0; i < size && openfd < 2; i++)\n");
 828         f_print(fout, "\t\t\tif (FD_ISSET(i, &svc_fdset))\n");
 829         f_print(fout, "\t\t\t\topenfd++;\n");
 830         f_print(fout, "\t\tif (openfd <= 1)\n");
 831         f_print(fout, "\t\t\texit(0);\n");
 832         f_print(fout, "\t}\n");
 833         f_print(fout, "\tif (_rpcsvcstate == _SERVED)\n");
 834         f_print(fout, "\t\t_rpcsvcstate = _IDLE;\n\n");
 835         if (mtflag)
 836                 f_print(fout, "\tmutex_unlock(&_svcstate_lock);\n");
 837
 838         f_print(fout, "\t(void) signal(SIGALRM, %s closedown);\n",
 839                                 Cflag? "(SIG_PF)" : "(void(*)())");
 840         f_print(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN/2);\n");
 841         f_print(fout, "}\n");
 842
 843 }
 844
 845 /*
 846  * Write the most of port monitor support
 847  */
 848 static void
 849 write_pm_most(infile, netflag)
 850         char *infile;
 851         int netflag;
 852 {
 853         list *l;
 854         definition *def;
 855         version_list *vp;
 856
 857         f_print(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n");
 858         f_print(fout, "\t\t(!strcmp(mname, \"sockmod\") ||");
 859         f_print(fout, " !strcmp(mname, \"timod\"))) {\n");
 860         f_print(fout, "\t\tchar *netid;\n");
 861         if (!netflag) { /* Not included by -n option */
 862                 f_print(fout, "\t\tstruct netconfig *nconf = NULL;\n");
 863                 f_print(fout, "\t\tSVCXPRT *%s;\n", TRANSP);
 864         }
 865         if (timerflag)
 866                 f_print(fout, "\t\tint pmclose;\n");
 867 /*
 868  *  Not necessary, defined in /usr/include/stdlib
 869  *  f_print(fout, "\t\textern char *getenv();\n");
 870  */
 871         f_print(fout, "\n");
 872         f_print(fout, "\t\t_rpcpmstart = 1;\n");
 873         open_log_file(infile, "\t\t");
 874         f_print(fout, "\n\t\tif ((netid = \
 875 getenv(\"NLSPROVIDER\")) == NULL) {\n");
 876
 877         if (timerflag) {
 878                 f_print(fout, "\t\t/* started from inetd */\n");
 879                 f_print(fout, "\t\t\tpmclose = 1;\n");
 880         }
 881         f_print(fout,
 882                 "\t\t} else {\n");
 883         f_print(fout, "\t\t\tif ((nconf = getnetconfigent(netid)) == NULL)\n");
 884         sprintf(_errbuf, "cannot get transport info");
 885         print_err_message("\t\t\t\t");
 886         if (timerflag)
 887                 f_print(fout, "\n\t\t\tpmclose = \
 888 (t_getstate(0) != T_DATAXFER);\n");
 889         f_print(fout, "\t\t}\n");
 890         /*
 891          * A kludgy support for inetd services. Inetd only works with
 892          * sockmod, and RPC works only with timod, hence all this jugglery
 893          */
 894         f_print(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n");
 895         f_print(fout,
 896                 "\t\t\tif (ioctl(0, I_POP, 0) || \
 897 ioctl(0, I_PUSH, \"timod\")) {\n");
 898         sprintf(_errbuf, "could not get the right module");
 899         print_err_message("\t\t\t\t");
 900         f_print(fout, "\t\t\t\texit(1);\n");
 901         f_print(fout, "\t\t\t}\n");
 902         f_print(fout, "\t\t}\n");
 903         f_print(fout,
 904                 "\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) \
 905 == NULL) {\n",
 906                 TRANSP);
 907         sprintf(_errbuf, "cannot create server handle");
 908         print_err_message("\t\t\t");
 909         f_print(fout, "\t\t\texit(1);\n");
 910         f_print(fout, "\t\t}\n");
 911         f_print(fout, "\t\tif (nconf)\n");
 912         f_print(fout, "\t\t\tfreenetconfigent(nconf);\n");
 913         for (l = defined; l != NULL; l = l->next) {
 914                 def = (definition *) l->val;
 915                 if (def->def_kind != DEF_PROGRAM) {
 916                         continue;
 917                 }
 918                 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
 919                         f_print(fout,
 920                                 "\t\tif (!svc_reg(%s, %s, %s, ",
 921                                 TRANSP, def->def_name, vp->vers_name);
 922                         pvname(def->def_name, vp->vers_num);
 923                         f_print(fout, ", 0)) {\n");
 924                         (void) sprintf(_errbuf, "unable to register (%s, %s).",
 925                                         def->def_name, vp->vers_name);
 926                         print_err_message("\t\t\t");
 927                         f_print(fout, "\t\t\texit(1);\n");
 928                         f_print(fout, "\t\t}\n");
 929                 }
 930         }
 931         if (timerflag) {
 932                 f_print(fout, "\t\tif (pmclose) {\n");
 933                 f_print(fout, "\t\t\t(void) signal(SIGALRM, %s closedown);\n",
 934                                 Cflag? "(SIG_PF)" : "(void(*)())");
 935                 f_print(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN/2);\n");
 936                 f_print(fout, "\t\t}\n");
 937         }
 938         f_print(fout, "\t\tsvc_run();\n");
 939         f_print(fout, "\t\texit(1);\n");
 940         f_print(fout, "\t\t/* NOTREACHED */\n");
 941         f_print(fout, "\t}");
 942 }
 943
 944 /*
 945  * Support for backgrounding the server if self started.
 946  */
 947 static void
 948 write_rpc_svc_fg(infile, sp)
 949         char *infile;
 950         char *sp;
 951 {
 952         f_print(fout, "#ifndef RPC_SVC_FG\n");
 953         f_print(fout, "%sint size;\n", sp);
 954         if (tirpcflag)
 955                 f_print(fout, "%sstruct rlimit rl;\n", sp);
 956         if (inetdflag)
 957                 f_print(fout, "%sint pid, i;\n\n", sp);
 958         f_print(fout, "%spid = fork();\n", sp);
 959         f_print(fout, "%sif (pid < 0) {\n", sp);
 960         f_print(fout, "%s\tperror(\"cannot fork\");\n", sp);
 961         f_print(fout, "%s\texit(1);\n", sp);
 962         f_print(fout, "%s}\n", sp);
 963         f_print(fout, "%sif (pid)\n", sp);
 964         f_print(fout, "%s\texit(0);\n", sp);
 965         /* get number of file descriptors */
 966         if (tirpcflag) {
 967                 f_print(fout, "%srl.rlim_max = 0;\n", sp);
 968                 f_print(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp);
 969                 f_print(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp);
 970                 f_print(fout, "%s\texit(1);\n", sp);
 971         } else {
 972                 f_print(fout, "%ssize = getdtablesize();\n", sp);
 973         }
 974
 975         f_print(fout, "%sfor (i = 0; i < size; i++)\n", sp);
 976         f_print(fout, "%s\t(void) close(i);\n", sp);
 977         /* Redirect stderr and stdout to console */
 978         f_print(fout, "%si = open(\"/dev/console\", 2);\n", sp);
 979         f_print(fout, "%s(void) dup2(i, 1);\n", sp);
 980         f_print(fout, "%s(void) dup2(i, 2);\n", sp);
 981         /* This removes control of the controlling terminal */
 982         if (tirpcflag)
 983                 f_print(fout, "%ssetsid();\n", sp);
 984         else {
 985                 f_print(fout, "%si = open(\"/dev/tty\", 2);\n", sp);
 986                 f_print(fout, "%sif (i >= 0) {\n", sp);
 987                 f_print(fout,
 988                         "%s\t(void) ioctl(i, TIOCNOTTY, (char *)NULL);\n", sp);
 989                 f_print(fout, "%s\t(void) close(i);\n", sp);
 990                 f_print(fout, "%s}\n", sp);
 991         }
 992         if (!logflag)
 993                 open_log_file(infile, sp);
 994         f_print(fout, "#endif\n");
 995         if (logflag)
 996                 open_log_file(infile, sp);
 997 }
 998
 999 static void
1000 open_log_file(infile, sp)
1001         char *infile;
1002         char *sp;
1003 {
1004         char *s;
1005
1006         s = strrchr(infile, '.');
1007         if (s)
1008                 *s = '\0';
1009         f_print(fout, "%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, infile);
1010         if (s)
1011                 *s = '.';
1012 }
1013
1014
1015
1016
1017 /*
1018  * write a registration for the given transport for Inetd
1019  */
1020 void
1021 write_inetd_register(transp)
1022         char *transp;
1023 {
1024         list *l;
1025         definition *def;
1026         version_list *vp;
1027         char *sp;
1028         int isudp;
1029         char tmpbuf[32];
1030
1031         if (inetdflag)
1032                 sp = "\t";
1033         else
1034                 sp = "";
1035         if (streq(transp, "udp"))
1036                 isudp = 1;
1037         else
1038                 isudp = 0;
1039         f_print(fout, "\n");
1040         if (inetdflag) {
1041                 f_print(fout,
1042                         "\tif ((_rpcfdtype == 0) || (_rpcfdtype == %s)) {\n",
1043                         isudp ? "SOCK_DGRAM" : "SOCK_STREAM");
1044         }
1045         f_print(fout, "%s\t%s = svc%s_create(%s",
1046                 sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK");
1047         if (!isudp)
1048                 f_print(fout, ", 0, 0");
1049         f_print(fout, ");\n");
1050         f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP);
1051         (void) sprintf(_errbuf, "cannot create %s service.", transp);
1052         (void) sprintf(tmpbuf, "%s\t\t", sp);
1053         print_err_message(tmpbuf);
1054         f_print(fout, "%s\t\texit(1);\n", sp);
1055         f_print(fout, "%s\t}\n", sp);
1056
1057         if (inetdflag) {
1058                 f_print(fout, "%s\tif (!_rpcpmstart)\n\t", sp);
1059                 f_print(fout, "%s\tproto = IPPROTO_%s;\n",
1060                                 sp, isudp ? "UDP": "TCP");
1061         }
1062         for (l = defined; l != NULL; l = l->next) {
1063                 def = (definition *) l->val;
1064                 if (def->def_kind != DEF_PROGRAM) {
1065                         continue;
1066                 }
1067                 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
1068                         f_print(fout, "%s\tif (!svc_register(%s, %s, %s, ",
1069                                 sp, TRANSP, def->def_name, vp->vers_name);
1070                         pvname(def->def_name, vp->vers_num);
1071                         if (inetdflag)
1072                                 f_print(fout, ", proto)) {\n");
1073                         else
1074                                 f_print(fout, ", IPPROTO_%s)) {\n",
1075                                         isudp ? "UDP": "TCP");
1076                         (void) sprintf(_errbuf,
1077                                 "unable to register (%s, %s, %s).",
1078                                 def->def_name, vp->vers_name, transp);
1079                         print_err_message(tmpbuf);
1080                         f_print(fout, "%s\t\texit(1);\n", sp);
1081                         f_print(fout, "%s\t}\n", sp);
1082                 }
1083         }
1084         if (inetdflag)
1085                 f_print(fout, "\t}\n");
1086 }