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
  30 #ident  "@(#)rpc_svcout.c       1.4     90/04/13 SMI"
  31
  32 #ifndef lint
  33 #if 0
  34 static char sccsid[] = "@(#)rpc_svcout.c 1.29 89/03/30 (C) 1987 SMI";
  35 #endif
  36 static const char rcsid[] =
  37   "$FreeBSD: src/usr.bin/rpcgen/rpc_svcout.c,v 1.6.6.1 2001/07/19 01:38:22 kris Exp $";
  38 #endif
  39
  40 /*
  41  * rpc_svcout.c, Server-skeleton outputter for the RPC protocol compiler
  42  * Copyright (C) 1987, Sun Microsystems, Inc.
  43  */
  44 #include <stdio.h>
  45 #include <string.h>
  46 #include "rpc_parse.h"
  47 #include "rpc_util.h"
  48
  49 static char RQSTP[] = "rqstp";
  50 static char TRANSP[] = "transp";
  51 static char ARG[] = "argument";
  52 static char RESULT[] = "result";
  53 static char ROUTINE[] = "local";
  54 static char RETVAL[] = "retval";
  55
  56 char _errbuf[256];      /* For all messages */
  57
  58 void internal_proctype __P(( proc_list * ));
  59 static void write_real_program __P(( definition * ));
  60 static void write_program __P(( definition *, char * ));
  61 static void printerr __P(( char *, char * ));
  62 static void printif __P(( char *, char *, char *, char * ));
  63 static void write_inetmost __P(( char * ));
  64 static void print_return __P(( char * ));
  65 static void print_pmapunset __P(( char * ));
  66 static void print_err_message __P(( char * ));
  67 static void write_timeout_func __P(( void ));
  68 static void write_pm_most __P(( char *, int ));
  69 static void write_rpc_svc_fg __P(( char *, char * ));
  70 static void open_log_file __P(( char *, char * ));
  71 static void write_msg_out __P(( void ));
  72 int nullproc __P(( proc_list * ));
  73
  74
  75 static void
  76 p_xdrfunc(rname, typename)
  77 char* rname;
  78 char* typename;
  79 {
  80         if (Cflag)
  81                 f_print(fout, "\t\txdr_%s = (xdrproc_t) xdr_%s;\n",
  82                         rname, stringfix(typename));
  83         else
  84                 f_print(fout, "\t\txdr_%s = xdr_%s;\n",
  85                         rname, stringfix(typename));
  86 }
  87
  88 void
  89 internal_proctype(plist)
  90         proc_list *plist;
  91 {
  92         f_print(fout, "static ");
  93         ptype(plist->res_prefix, plist->res_type, 1);
  94         f_print(fout, "*");
  95 }
  96
  97
  98 /*
  99  * write most of the service, that is, everything but the registrations.
 100  */
 101 void
 102 write_most(infile, netflag, nomain)
 103         char *infile;           /* our name */
 104         int netflag;
 105         int nomain;
 106 {
 107         if (inetdflag || pmflag) {
 108                 char* var_type;
 109                 var_type = (nomain? "extern" : "static");
 110                 f_print(fout, "%s int _rpcpmstart;", var_type);
 111                 f_print(fout, "\t\t/* Started by a port monitor ? */\n");
 112                 if (!tirpcflag) {
 113                         f_print(fout, "%s int _rpcfdtype;", var_type);
 114                         f_print(fout, "\n\t\t /* Whether Stream or \
 115 Datagram ? */\n");
 116                 }
 117
 118                 if (timerflag) {
 119                         f_print(fout, " /* States a server can be in \
 120 wrt request */\n\n");
 121                         f_print(fout, "#define\t_IDLE 0\n");
 122                         f_print(fout, "#define\t_SERVED 1\n");
 123                         f_print(fout, "#define\t_SERVING 2\n\n");
 124                         f_print(fout, "static int _rpcsvcstate = _IDLE;");
 125                         f_print(fout, "\t /* Set when a request is \
 126 serviced */\n");
 127
 128                         if (mtflag) {
 129                                 f_print(fout, "mutex_t _svcstate_lock;");
 130                                 f_print(fout, "\t\t\t/* Mutex lock for variable _rpcsvcstate */\n");
 131
 132                         }
 133
 134                 }
 135
 136                 write_svc_aux(nomain);
 137         }
 138         /* write out dispatcher and stubs */
 139         write_programs(nomain? (char *)NULL : "static");
 140
 141         if (nomain)
 142                 return;
 143
 144         f_print(fout, "\nmain()\n");
 145         f_print(fout, "{\n");
 146         if (inetdflag) {
 147                 write_inetmost(infile);
 148                 /* Includes call to write_rpc_svc_fg() */
 149         } else {
 150                 if (tirpcflag) {
 151                         if (netflag) {
 152                                 f_print(fout,
 153                                         "\tregister SVCXPRT *%s;\n", TRANSP);
 154                                 f_print(fout,
 155                                         "\tstruct netconfig *nconf = NULL;\n");
 156                         }
 157                         f_print(fout, "\tpid_t pid;\n");
 158                         f_print(fout, "\tint i;\n");
 159                         f_print(fout, "\tchar mname[FMNAMESZ + 1];\n\n");
 160
 161                         if (mtflag & timerflag)
 162                                 f_print(fout, "\tmutex_init(&_svcstate_lock, USYNC_THREAD, NULL);\n");
 163
 164                         write_pm_most(infile, netflag);
 165                         f_print(fout, "\telse {\n");
 166                         write_rpc_svc_fg(infile, "\t\t");
 167                         f_print(fout, "\t}\n");
 168                 } else {
 169                         f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP);
 170                         f_print(fout, "\n");
 171                         print_pmapunset("\t");
 172                 }
 173         }
 174
 175         if (logflag && !inetdflag) {
 176                 open_log_file(infile, "\t");
 177         }
 178 }
 179
 180 /*
 181  * write a registration for the given transport
 182  */
 183 void
 184 write_netid_register(transp)
 185         char *transp;
 186 {
 187         list *l;
 188         definition *def;
 189         version_list *vp;
 190         char *sp;
 191         char tmpbuf[32];
 192
 193         sp = "";
 194         f_print(fout, "\n");
 195         f_print(fout, "%s\tnconf = getnetconfigent(\"%s\");\n", sp, transp);
 196         f_print(fout, "%s\tif (nconf == NULL) {\n", sp);
 197         (void) sprintf(_errbuf, "cannot find %s netid.", transp);
 198         sprintf(tmpbuf, "%s\t\t", sp);
 199         print_err_message(tmpbuf);
 200         f_print(fout, "%s\t\texit(1);\n", sp);
 201         f_print(fout, "%s\t}\n", sp);
 202         f_print(fout, "%s\t%s = svc_tli_create(RPC_ANYFD, nconf, 0, 0, 0);\n",
 203                 sp, TRANSP);
 204         f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP);
 205         (void) sprintf(_errbuf, "cannot create %s service.", transp);
 206         print_err_message(tmpbuf);
 207         f_print(fout, "%s\t\texit(1);\n", sp);
 208         f_print(fout, "%s\t}\n", sp);
 209
 210         for (l = defined; l != NULL; l = l->next) {
 211                 def = (definition *) l->val;
 212                 if (def->def_kind != DEF_PROGRAM) {
 213                         continue;
 214                 }
 215                 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
 216                         f_print(fout,
 217                                 "%s\t(void) rpcb_unset(%s, %s, nconf);\n",
 218                                 sp, def->def_name, vp->vers_name);
 219                         f_print(fout,
 220                                 "%s\tif (!svc_reg(%s, %s, %s, ",
 221                                 sp, TRANSP, def->def_name, vp->vers_name);
 222                         pvname(def->def_name, vp->vers_num);
 223                         f_print(fout, ", nconf)) {\n");
 224                         (void) sprintf(_errbuf,
 225                                 "unable to register (%s, %s, %s).",
 226                                 def->def_name, vp->vers_name, transp);
 227                         print_err_message(tmpbuf);
 228                         f_print(fout, "%s\t\texit(1);\n", sp);
 229                         f_print(fout, "%s\t}\n", sp);
 230                 }
 231         }
 232         f_print(fout, "%s\tfreenetconfigent(nconf);\n", sp);
 233 }
 234
 235 /*
 236  * write a registration for the given transport for TLI
 237  */
 238 void
 239 write_nettype_register(transp)
 240         char *transp;
 241 {
 242         list *l;
 243         definition *def;
 244         version_list *vp;
 245
 246         for (l = defined; l != NULL; l = l->next) {
 247                 def = (definition *) l->val;
 248                 if (def->def_kind != DEF_PROGRAM) {
 249                         continue;
 250                 }
 251                 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
 252                         f_print(fout, "\tif (!svc_create(");
 253                         pvname(def->def_name, vp->vers_num);
 254                         f_print(fout, ", %s, %s, \"%s\")) {\n",
 255                                 def->def_name, vp->vers_name, transp);
 256                         (void) sprintf(_errbuf,
 257                                 "unable to create (%s, %s) for %s.",
 258                                         def->def_name, vp->vers_name, transp);
 259                         print_err_message("\t\t");
 260                         f_print(fout, "\t\texit(1);\n");
 261                         f_print(fout, "\t}\n");
 262                 }
 263         }
 264 }
 265
 266 /*
 267  * write the rest of the service
 268  */
 269 void
 270 write_rest()
 271 {
 272         f_print(fout, "\n");
 273         if (inetdflag) {
 274                 f_print(fout, "\tif (%s == (SVCXPRT *)NULL) {\n", TRANSP);
 275                 (void) sprintf(_errbuf, "could not create a handle");
 276                 print_err_message("\t\t");
 277                 f_print(fout, "\t\texit(1);\n");
 278                 f_print(fout, "\t}\n");
 279                 if (timerflag) {
 280                         f_print(fout, "\tif (_rpcpmstart) {\n");
 281                         f_print(fout,
 282                                 "\t\t(void) signal(SIGALRM, %s closedown);\n",
 283                                 Cflag? "(SIG_PF)":"(void(*)())");
 284                         f_print(fout, "\t\t(void) \
 285 alarm(_RPCSVC_CLOSEDOWN/2);\n");
 286                         f_print(fout, "\t}\n");
 287                 }
 288         }
 289         f_print(fout, "\tsvc_run();\n");
 290         (void) sprintf(_errbuf, "svc_run returned");
 291         print_err_message("\t");
 292         f_print(fout, "\texit(1);\n");
 293         f_print(fout, "\t/* NOTREACHED */\n");
 294         f_print(fout, "}\n");
 295 }
 296
 297 void
 298 write_programs(storage)
 299         char *storage;
 300 {
 301         list *l;
 302         definition *def;
 303
 304         /* write out stubs for procedure  definitions */
 305         for (l = defined; l != NULL; l = l->next) {
 306                 def = (definition *) l->val;
 307                 if (def->def_kind == DEF_PROGRAM) {
 308                         write_real_program(def);
 309                 }
 310         }
 311
 312         /* write out dispatcher for each program */
 313         for (l = defined; l != NULL; l = l->next) {
 314                 def = (definition *) l->val;
 315                 if (def->def_kind == DEF_PROGRAM) {
 316                         write_program(def, storage);
 317                 }
 318         }
 319
 320
 321 }
 322
 323 /*
 324  * write out definition of internal function (e.g. _printmsg_1(...))
 325  *  which calls server's defintion of actual function (e.g. printmsg_1(...)).
 326  *  Unpacks single user argument of printmsg_1 to call-by-value format
 327  *  expected by printmsg_1.
 328  */
 329 static void
 330 write_real_program(def)
 331         definition *def;
 332 {
 333         version_list *vp;
 334         proc_list *proc;
 335         decl_list *l;
 336
 337         if (!newstyle) return;  /* not needed for old style */
 338         for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
 339                 for (proc = vp->procs; proc != NULL; proc = proc->next) {
 340                         f_print(fout, "\n");
 341                         if (!mtflag)
 342                                 internal_proctype(proc);
 343                         else
 344                                 f_print(fout, "int");
 345                         f_print(fout, "\n_");
 346                         pvname(proc->proc_name, vp->vers_num);
 347                         if (Cflag) {
 348                                 f_print(fout, "(");
 349                                 /* arg name */
 350                                 if (proc->arg_num > 1)
 351                                         f_print(fout, proc->args.argname);
 352                                 else
 353                                         ptype(proc->args.decls->decl.prefix,
 354                                               proc->args.decls->decl.type, 0);
 355                                 if (mtflag) {
 356                                         f_print(fout, " *argp, void *%s, struct svc_req *%s)\n",
 357                                                 RESULT, RQSTP);
 358
 359
 360                                 }
 361                                 else
 362                                         f_print(fout, " *argp, struct svc_req *%s)\n",
 363                                                 RQSTP);
 364
 365                         } else {
 366                                 if (mtflag)
 367                                         f_print(fout, "(argp, %s, %s)\n", RESULT, RQSTP);
 368                                 else
 369                                         f_print(fout, "(argp, %s)\n", RQSTP);
 370                                 /* arg name */
 371                                 if (proc->arg_num > 1)
 372                                         f_print(fout, "\t%s *argp;\n",
 373                                                 proc->args.argname);
 374                                 else {
 375                                         f_print(fout, "\t");
 376                                         ptype(proc->args.decls->decl.prefix,
 377                                               proc->args.decls->decl.type, 0);
 378                                         f_print(fout, " *argp;\n");
 379                                 }
 380                                 if (mtflag)
 381                                         f_print(fout, "\tvoid *%s;\n", RESULT);
 382                                 f_print(fout, "\tstruct svc_req *%s;\n", RQSTP);
 383                         }
 384
 385                         f_print(fout, "{\n");
 386                         f_print(fout, "\treturn (");
 387                         if (Cflag || mtflag) /* for mtflag, arguments are different */
 388                                 pvname_svc(proc->proc_name, vp->vers_num);
 389                         else
 390                                 pvname(proc->proc_name, vp->vers_num);
 391                         f_print(fout, "(");
 392                         if (proc->arg_num < 2) { /* single argument */
 393                                 if (!streq(proc->args.decls->decl.type, "void"))
 394                                         f_print(fout, "*argp, "); /* non-void */
 395                         } else {
 396                                 for (l = proc->args.decls;  l != NULL;
 397                                      l = l->next)
 398                                         f_print(fout, "argp->%s, ",
 399                                                 l->decl.name);
 400                         }
 401                         if (mtflag)
 402                                 f_print(fout, "%s, ",RESULT);
 403                         f_print(fout, "%s));\n}\n", RQSTP);
 404                 }
 405         }
 406 }
 407
 408 static void
 409 write_program(def, storage)
 410         definition *def;
 411         char *storage;
 412 {
 413         version_list *vp;
 414         proc_list *proc;
 415         int filled;
 416
 417         for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
 418                 f_print(fout, "\n");
 419                 if (storage != NULL) {
 420                         f_print(fout, "%s ", storage);
 421                 }
 422                 f_print(fout, "void\n");
 423                 pvname(def->def_name, vp->vers_num);
 424
 425                 if (Cflag) {
 426                         f_print(fout, "(struct svc_req *%s, ", RQSTP);
 427                         f_print(fout, "register SVCXPRT *%s)\n", TRANSP);
 428                 } else {
 429                         f_print(fout, "(%s, %s)\n", RQSTP, TRANSP);
 430                         f_print(fout, " struct svc_req *%s;\n", RQSTP);
 431                         f_print(fout, " register SVCXPRT *%s;\n", TRANSP);
 432                 }
 433
 434                 f_print(fout, "{\n");
 435
 436                 filled = 0;
 437                 f_print(fout, "\tunion {\n");
 438                 for (proc = vp->procs; proc != NULL; proc = proc->next) {
 439                         if (proc->arg_num < 2) { /* single argument */
 440                                 if (streq(proc->args.decls->decl.type,
 441                                           "void")) {
 442                                         continue;
 443                                 }
 444                                 filled = 1;
 445                                 f_print(fout, "\t\t");
 446                                 ptype(proc->args.decls->decl.prefix,
 447                                       proc->args.decls->decl.type, 0);
 448                                 pvname(proc->proc_name, vp->vers_num);
 449                                 f_print(fout, "_arg;\n");
 450
 451                         } else {
 452                                 filled = 1;
 453                                 f_print(fout, "\t\t%s", proc->args.argname);
 454                                 f_print(fout, " ");
 455                                 pvname(proc->proc_name, vp->vers_num);
 456                                 f_print(fout, "_arg;\n");
 457                         }
 458                 }
 459                 if (!filled) {
 460                         f_print(fout, "\t\tint fill;\n");
 461                 }
 462                 f_print(fout, "\t} %s;\n", ARG);
 463
 464                 if (mtflag) {
 465                         f_print(fout, "\tunion {\n");
 466                         for (proc = vp->procs; proc != NULL; proc = proc->next) {
 467                                 f_print(fout, "\t\t");
 468                                 ptype(proc->res_prefix, proc->res_type, 0);
 469                                 pvname(proc->proc_name, vp->vers_num);
 470                                 f_print(fout, "_res;\n");
 471                         }
 472                         f_print(fout, "\t} %s;\n", RESULT);
 473                         f_print(fout, "\tbool_t %s;\n", RETVAL);
 474
 475                 } else
 476                         f_print(fout, "\tchar *%s;\n", RESULT);
 477
 478                 if (Cflag) {
 479                         f_print(fout, "\txdrproc_t xdr_%s, xdr_%s;\n",
 480                                 ARG, RESULT);
 481                         if (mtflag)
 482                                 f_print(fout,
 483                                         "\tbool_t (*%s)(char *, void *, struct svc_req *);\n",
 484                                         ROUTINE);
 485                         else
 486                                 f_print(fout,
 487                                         "\tchar *(*%s)(char *, struct svc_req *);\n",
 488                                         ROUTINE);
 489                 } else {
 490                         f_print(fout,
 491                                 "\tbool_t (*xdr_%s)(), (*xdr_%s)();\n",
 492                                 ARG, RESULT);
 493                         if (mtflag)
 494                                 f_print(fout, "\tbool_t (*%s)();\n", ROUTINE);
 495                         else
 496                                 f_print(fout, "\tchar *(*%s)();\n", ROUTINE);
 497                 }
 498                 f_print(fout, "\n");
 499
 500                 if (timerflag) {
 501                         if (mtflag)
 502                                 f_print(fout, "\tmutex_lock(&_svcstate_lock);\n");
 503
 504                         f_print(fout, "\t_rpcsvcstate = _SERVING;\n");
 505                         if (mtflag)
 506                                 f_print(fout, "\tmutex_unlock(&_svcstate_lock);\n");
 507                 }
 508
 509                 f_print(fout, "\tswitch (%s->rq_proc) {\n", RQSTP);
 510                 if (!nullproc(vp->procs)) {
 511                         f_print(fout, "\tcase NULLPROC:\n");
 512                         f_print(fout,
 513                                 Cflag
 514                                 ? "\t\t(void) svc_sendreply(%s,\n\t\t\t\
 515 (xdrproc_t) xdr_void, (char *)NULL);\n"
 516                                 : "\t\t(void) svc_sendreply(%s, xdr_void,\n\t\t\t\
 517 (char *)NULL);\n",
 518                                 TRANSP);
 519                         print_return("\t\t");
 520                         f_print(fout, "\n");
 521                 }
 522                 for (proc = vp->procs; proc != NULL; proc = proc->next) {
 523                         f_print(fout, "\tcase %s:\n", proc->proc_name);
 524                         if (proc->arg_num < 2) { /* single argument */
 525                                 p_xdrfunc(ARG, proc->args.decls->decl.type);
 526                         } else {
 527                                 p_xdrfunc(ARG, proc->args.argname);
 528                         }
 529                         p_xdrfunc(RESULT, proc->res_type);
 530
 531                         if (Cflag)
 532                                 if (mtflag)
 533                                         f_print(fout,
 534                                                 "\t\t%s = (bool_t (*) (char *,  void *,  struct svc_req *))",
 535                                                 ROUTINE);
 536                                 else
 537                                         f_print(fout,
 538                                                 "\t\t%s = (char *(*)(char *, struct svc_req *)) ",
 539                                                 ROUTINE);
 540                         else
 541                                 if (mtflag)
 542                                         f_print(fout, "\t\t%s = (bool_t (*)()) ",
 543                                                 ROUTINE);
 544                                 else
 545
 546                                         f_print(fout, "\t\t%s = (char *(*)()) ",
 547                                                 ROUTINE);
 548                         if (newstyle) { /* new style: calls internal routine */
 549                                 f_print(fout, "_");
 550                         }
 551                         if ((Cflag || mtflag) && !newstyle)
 552                                 pvname_svc(proc->proc_name, vp->vers_num);
 553                         else
 554                                 pvname(proc->proc_name, vp->vers_num);
 555                         f_print(fout, ";\n");
 556                         f_print(fout, "\t\tbreak;\n\n");
 557                 }
 558                 f_print(fout, "\tdefault:\n");
 559                 printerr("noproc", TRANSP);
 560                 print_return("\t\t");
 561                 f_print(fout, "\t}\n");
 562
 563                 f_print(fout,
 564                         "\t(void) memset((char *)&%s, 0, sizeof (%s));\n",
 565                         ARG, ARG);
 566                 if (Cflag)
 567                         printif("getargs", TRANSP, "(caddr_t) &", ARG);
 568                 else
 569                         printif("getargs", TRANSP, "&", ARG);
 570                 printerr("decode", TRANSP);
 571                 print_return("\t\t");
 572                 f_print(fout, "\t}\n");
 573
 574                 if (!mtflag)
 575                         if (Cflag)
 576                                 f_print(fout, "\t%s = (*%s)((char *)&%s, %s);\n",
 577                                         RESULT, ROUTINE, ARG, RQSTP);
 578                         else
 579                                 f_print(fout, "\t%s = (*%s)(&%s, %s);\n",
 580                                         RESULT, ROUTINE, ARG, RQSTP);
 581                 else
 582                         if (Cflag)
 583                                 f_print(fout, "\t%s = (bool_t) (*%s)((char *)&%s, (void *)&%s, %s);\n",
 584                                         RETVAL, ROUTINE, ARG, RESULT, RQSTP);
 585                         else
 586                                 f_print(fout, "\t%s = (bool_t) (*%s)(&%s, &%s, %s);\n",
 587                                         RETVAL, ROUTINE, ARG, RESULT, RQSTP);
 588
 589
 590
 591
 592                 if (mtflag)
 593                         f_print(fout,
 594                                 "\tif (%s > 0 && !svc_sendreply(%s, xdr_%s, (char *)&%s)) {\n",
 595                                 RETVAL, TRANSP, RESULT, RESULT);
 596                 else
 597                         f_print(fout,
 598                                 "\tif (%s != NULL && !svc_sendreply(%s, xdr_%s, %s)) {\n",
 599                                 RESULT, TRANSP, RESULT, RESULT);
 600
 601                 printerr("systemerr", TRANSP);
 602                 f_print(fout, "\t}\n");
 603
 604                 if (Cflag)
 605                         printif("freeargs", TRANSP, "(caddr_t) &", ARG);
 606                 else
 607                         printif("freeargs", TRANSP, "&", ARG);
 608                 (void) sprintf(_errbuf, "unable to free arguments");
 609                 print_err_message("\t\t");
 610                 f_print(fout, "\t\texit(1);\n");
 611                 f_print(fout, "\t}\n");
 612                 /* print out free routine */
 613                 if (mtflag) {
 614                         f_print(fout,"\tif (!");
 615                         pvname(def->def_name, vp->vers_num);
 616                         f_print(fout,"_freeresult(%s, xdr_%s, (caddr_t) &%s))\n",
 617                                 TRANSP, RESULT, RESULT);
 618                         (void) sprintf(_errbuf, "unable to free results");
 619                         print_err_message("\t\t");
 620                         f_print(fout, "\n");
 621                 };
 622                 print_return("\t");
 623                 f_print(fout, "}\n");
 624         }
 625 }
 626
 627 static void
 628 printerr(err, transp)
 629         char *err;
 630         char *transp;
 631 {
 632         f_print(fout, "\t\tsvcerr_%s(%s);\n", err, transp);
 633 }
 634
 635 static void
 636 printif(proc, transp, prefix, arg)
 637         char *proc;
 638         char *transp;
 639         char *prefix;
 640         char *arg;
 641 {
 642         f_print(fout, "\tif (!svc_%s(%s, xdr_%s, %s%s)) {\n",
 643                 proc, transp, arg, prefix, arg);
 644 }
 645
 646 int
 647 nullproc(proc)
 648         proc_list *proc;
 649 {
 650         for (; proc != NULL; proc = proc->next) {
 651                 if (streq(proc->proc_num, "0")) {
 652                         return (1);
 653                 }
 654         }
 655         return (0);
 656 }
 657
 658 static void
 659 write_inetmost(infile)
 660         char *infile;
 661 {
 662         f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP);
 663         f_print(fout, "\tint sock;\n");
 664         f_print(fout, "\tint proto;\n");
 665         f_print(fout, "\tstruct sockaddr_in saddr;\n");
 666         f_print(fout, "\tint asize = sizeof (saddr);\n");
 667         f_print(fout, "\n");
 668         f_print(fout,
 669         "\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n");
 670         f_print(fout, "\t\tint ssize = sizeof (int);\n\n");
 671         f_print(fout, "\t\tif (saddr.sin_family != AF_INET)\n");
 672         f_print(fout, "\t\t\texit(1);\n");
 673         f_print(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n");
 674         f_print(fout, "\t\t\t\t(char *)&_rpcfdtype, &ssize) == -1)\n");
 675         f_print(fout, "\t\t\texit(1);\n");
 676         f_print(fout, "\t\tsock = 0;\n");
 677         f_print(fout, "\t\t_rpcpmstart = 1;\n");
 678         f_print(fout, "\t\tproto = 0;\n");
 679         open_log_file(infile, "\t\t");
 680         f_print(fout, "\t} else {\n");
 681         write_rpc_svc_fg(infile, "\t\t");
 682         f_print(fout, "\t\tsock = RPC_ANYSOCK;\n");
 683         print_pmapunset("\t\t");
 684         f_print(fout, "\t}\n");
 685 }
 686
 687 static void
 688 print_return(space)
 689         char *space;
 690 {
 691         if (exitnow)
 692                 f_print(fout, "%sexit(0);\n", space);
 693         else {
 694                 if (timerflag) {
 695                         if (mtflag)
 696                                 f_print(fout, "%smutex_lock(&_svcstate_lock);\n", space);
 697                                 f_print(fout, "%s_rpcsvcstate = _SERVED;\n", space);
 698                         if (mtflag)
 699                                 f_print(fout, "%smutex_unlock(&_svcstate_lock);\n", space);
 700                 }
 701                 f_print(fout, "%sreturn;\n", space);
 702         }
 703 }
 704
 705 static void
 706 print_pmapunset(space)
 707         char *space;
 708 {
 709         list *l;
 710         definition *def;
 711         version_list *vp;
 712
 713         for (l = defined; l != NULL; l = l->next) {
 714                 def = (definition *) l->val;
 715                 if (def->def_kind == DEF_PROGRAM) {
 716                         for (vp = def->def.pr.versions; vp != NULL;
 717                                         vp = vp->next) {
 718                                 f_print(fout, "%s(void) pmap_unset(%s, %s);\n",
 719                                         space, def->def_name, vp->vers_name);
 720                         }
 721                 }
 722         }
 723 }
 724
 725 static void
 726 print_err_message(space)
 727         char *space;
 728 {
 729         if (logflag)
 730                 f_print(fout, "%ssyslog(LOG_ERR, \"%s\");\n", space, _errbuf);
 731         else if (inetdflag || pmflag)
 732                 f_print(fout, "%s_msgout(\"%s\");\n", space, _errbuf);
 733         else
 734                 f_print(fout, "%sfprintf(stderr, \"%s\");\n", space, _errbuf);
 735 }
 736
 737 /*
 738  * Write the server auxiliary function (_msgout, timeout)
 739  */
 740 void
 741 write_svc_aux(nomain)
 742         int nomain;
 743 {
 744         if (!logflag)
 745                 write_msg_out();
 746         if (!nomain)
 747                 write_timeout_func();
 748 }
 749
 750 /*
 751  * Write the _msgout function
 752  */
 753
 754 static void
 755 write_msg_out(void)
 756 {
 757         f_print(fout, "\n");
 758 /*
 759  * Avoid making _msgout() static -- it's useful to have it visible
 760  * in the toplevel RPC server code.
 761  */
 762         f_print(fout, "static\n");
 763
 764         if (!Cflag) {
 765                 f_print(fout, "void _msgout(msg)\n");
 766                 f_print(fout, "\tchar *msg;\n");
 767         } else {
 768                 f_print(fout, "void _msgout(char* msg)\n");
 769         }
 770         f_print(fout, "{\n");
 771         f_print(fout, "#ifdef RPC_SVC_FG\n");
 772         if (inetdflag || pmflag)
 773                 f_print(fout, "\tif (_rpcpmstart)\n");
 774         f_print(fout, "\t\tsyslog(LOG_ERR, \"%%s\", msg);\n");
 775         f_print(fout, "\telse\n");
 776         f_print(fout,
 777                 "\t\t(void) fprintf(stderr, \"%%s\\n\", msg);\n");
 778         f_print(fout, "#else\n");
 779         f_print(fout, "\tsyslog(LOG_ERR, \"%%s\", msg);\n");
 780         f_print(fout, "#endif\n");
 781         f_print(fout, "}\n");
 782 }
 783
 784 /*
 785  * Write the timeout function
 786  */
 787 static void
 788 write_timeout_func(void)
 789 {
 790         if (!timerflag)
 791                 return;
 792
 793         f_print(fout, "\n");
 794         f_print(fout, "static void\n");
 795         if (!Cflag) {
 796                 f_print(fout, "closedown(sig)\n");
 797                 f_print(fout, "\tint sig;\n");
 798         } else
 799                 f_print(fout, "closedown(int sig)\n");
 800         f_print(fout, "{\n");
 801         if (mtflag)
 802                 f_print(fout, "\tmutex_lock(&_svcstate_lock);\n");
 803         f_print(fout, "\tif (_rpcsvcstate == _IDLE) {\n");
 804         f_print(fout, "\t\textern fd_set svc_fdset;\n");
 805         f_print(fout, "\t\tstatic int size;\n");
 806         f_print(fout, "\t\tint i, openfd;\n");
 807         if (tirpcflag && pmflag) {
 808                 f_print(fout, "\t\tstruct t_info tinfo;\n\n");
 809                 f_print(fout,
 810                         "\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n");
 811         } else {
 812                 f_print(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n");
 813         }
 814         f_print(fout, "\t\t\texit(0);\n");
 815         f_print(fout, "\t\tif (size == 0) {\n");
 816         if (tirpcflag) {
 817                 f_print(fout, "\t\t\tstruct rlimit rl;\n\n");
 818                 f_print(fout, "\t\t\trl.rlim_max = 0;\n");
 819                 f_print(fout, "\t\t\tgetrlimit(RLIMIT_NOFILE, &rl);\n");
 820                 f_print(fout, "\t\t\tif ((size = rl.rlim_max) == 0) {\n");
 821
 822                 if (mtflag)
 823                         f_print(fout, "\t\t\t\tmutex_unlock(&_svcstate_lock);\n");
 824
 825                 f_print(fout, "\t\t\t\treturn;\n\t\t\t}\n");
 826         } else {
 827                 f_print(fout, "\t\t\tsize = getdtablesize();\n");
 828         }
 829         f_print(fout, "\t\t}\n");
 830         f_print(fout,
 831                 "\t\tfor (i = 0, openfd = 0; i < size && openfd < 2; i++)\n");
 832         f_print(fout, "\t\t\tif (FD_ISSET(i, &svc_fdset))\n");
 833         f_print(fout, "\t\t\t\topenfd++;\n");
 834         f_print(fout, "\t\tif (openfd <= 1)\n");
 835         f_print(fout, "\t\t\texit(0);\n");
 836         f_print(fout, "\t}\n");
 837         f_print(fout, "\tif (_rpcsvcstate == _SERVED)\n");
 838         f_print(fout, "\t\t_rpcsvcstate = _IDLE;\n\n");
 839         if (mtflag)
 840                 f_print(fout, "\tmutex_unlock(&_svcstate_lock);\n");
 841
 842         f_print(fout, "\t(void) signal(SIGALRM, %s closedown);\n",
 843                                 Cflag? "(SIG_PF)" : "(void(*)())");
 844         f_print(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN/2);\n");
 845         f_print(fout, "}\n");
 846
 847 }
 848
 849 /*
 850  * Write the most of port monitor support
 851  */
 852 static void
 853 write_pm_most(infile, netflag)
 854         char *infile;
 855         int netflag;
 856 {
 857         list *l;
 858         definition *def;
 859         version_list *vp;
 860
 861         f_print(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n");
 862         f_print(fout, "\t\t(!strcmp(mname, \"sockmod\") ||");
 863         f_print(fout, " !strcmp(mname, \"timod\"))) {\n");
 864         f_print(fout, "\t\tchar *netid;\n");
 865         if (!netflag) { /* Not included by -n option */
 866                 f_print(fout, "\t\tstruct netconfig *nconf = NULL;\n");
 867                 f_print(fout, "\t\tSVCXPRT *%s;\n", TRANSP);
 868         }
 869         if (timerflag)
 870                 f_print(fout, "\t\tint pmclose;\n");
 871 /*
 872  *  Not necessary, defined in /usr/include/stdlib
 873  *  f_print(fout, "\t\textern char *getenv();\n");
 874  */
 875         f_print(fout, "\n");
 876         f_print(fout, "\t\t_rpcpmstart = 1;\n");
 877         open_log_file(infile, "\t\t");
 878         f_print(fout, "\n\t\tif ((netid = \
 879 getenv(\"NLSPROVIDER\")) == NULL) {\n");
 880
 881         if (timerflag) {
 882                 f_print(fout, "\t\t/* started from inetd */\n");
 883                 f_print(fout, "\t\t\tpmclose = 1;\n");
 884         }
 885         f_print(fout,
 886                 "\t\t} else {\n");
 887         f_print(fout, "\t\t\tif ((nconf = getnetconfigent(netid)) == NULL)\n");
 888         sprintf(_errbuf, "cannot get transport info");
 889         print_err_message("\t\t\t\t");
 890         if (timerflag)
 891                 f_print(fout, "\n\t\t\tpmclose = \
 892 (t_getstate(0) != T_DATAXFER);\n");
 893         f_print(fout, "\t\t}\n");
 894         /*
 895          * A kludgy support for inetd services. Inetd only works with
 896          * sockmod, and RPC works only with timod, hence all this jugglery
 897          */
 898         f_print(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n");
 899         f_print(fout,
 900                 "\t\t\tif (ioctl(0, I_POP, 0) || \
 901 ioctl(0, I_PUSH, \"timod\")) {\n");
 902         sprintf(_errbuf, "could not get the right module");
 903         print_err_message("\t\t\t\t");
 904         f_print(fout, "\t\t\t\texit(1);\n");
 905         f_print(fout, "\t\t\t}\n");
 906         f_print(fout, "\t\t}\n");
 907         f_print(fout,
 908                 "\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) \
 909 == NULL) {\n",
 910                 TRANSP);
 911         sprintf(_errbuf, "cannot create server handle");
 912         print_err_message("\t\t\t");
 913         f_print(fout, "\t\t\texit(1);\n");
 914         f_print(fout, "\t\t}\n");
 915         f_print(fout, "\t\tif (nconf)\n");
 916         f_print(fout, "\t\t\tfreenetconfigent(nconf);\n");
 917         for (l = defined; l != NULL; l = l->next) {
 918                 def = (definition *) l->val;
 919                 if (def->def_kind != DEF_PROGRAM) {
 920                         continue;
 921                 }
 922                 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
 923                         f_print(fout,
 924                                 "\t\tif (!svc_reg(%s, %s, %s, ",
 925                                 TRANSP, def->def_name, vp->vers_name);
 926                         pvname(def->def_name, vp->vers_num);
 927                         f_print(fout, ", 0)) {\n");
 928                         (void) sprintf(_errbuf, "unable to register (%s, %s).",
 929                                         def->def_name, vp->vers_name);
 930                         print_err_message("\t\t\t");
 931                         f_print(fout, "\t\t\texit(1);\n");
 932                         f_print(fout, "\t\t}\n");
 933                 }
 934         }
 935         if (timerflag) {
 936                 f_print(fout, "\t\tif (pmclose) {\n");
 937                 f_print(fout, "\t\t\t(void) signal(SIGALRM, %s closedown);\n",
 938                                 Cflag? "(SIG_PF)" : "(void(*)())");
 939                 f_print(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN/2);\n");
 940                 f_print(fout, "\t\t}\n");
 941         }
 942         f_print(fout, "\t\tsvc_run();\n");
 943         f_print(fout, "\t\texit(1);\n");
 944         f_print(fout, "\t\t/* NOTREACHED */\n");
 945         f_print(fout, "\t}");
 946 }
 947
 948 /*
 949  * Support for backgrounding the server if self started.
 950  */
 951 static void
 952 write_rpc_svc_fg(infile, sp)
 953         char *infile;
 954         char *sp;
 955 {
 956         f_print(fout, "#ifndef RPC_SVC_FG\n");
 957         f_print(fout, "%sint size;\n", sp);
 958         if (tirpcflag)
 959                 f_print(fout, "%sstruct rlimit rl;\n", sp);
 960         if (inetdflag)
 961                 f_print(fout, "%sint pid, i;\n\n", sp);
 962         f_print(fout, "%spid = fork();\n", sp);
 963         f_print(fout, "%sif (pid < 0) {\n", sp);
 964         f_print(fout, "%s\tperror(\"cannot fork\");\n", sp);
 965         f_print(fout, "%s\texit(1);\n", sp);
 966         f_print(fout, "%s}\n", sp);
 967         f_print(fout, "%sif (pid)\n", sp);
 968         f_print(fout, "%s\texit(0);\n", sp);
 969         /* get number of file descriptors */
 970         if (tirpcflag) {
 971                 f_print(fout, "%srl.rlim_max = 0;\n", sp);
 972                 f_print(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp);
 973                 f_print(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp);
 974                 f_print(fout, "%s\texit(1);\n", sp);
 975         } else {
 976                 f_print(fout, "%ssize = getdtablesize();\n", sp);
 977         }
 978
 979         f_print(fout, "%sfor (i = 0; i < size; i++)\n", sp);
 980         f_print(fout, "%s\t(void) close(i);\n", sp);
 981         /* Redirect stderr and stdout to console */
 982         f_print(fout, "%si = open(\"/dev/console\", 2);\n", sp);
 983         f_print(fout, "%s(void) dup2(i, 1);\n", sp);
 984         f_print(fout, "%s(void) dup2(i, 2);\n", sp);
 985         /* This removes control of the controlling terminal */
 986         if (tirpcflag)
 987                 f_print(fout, "%ssetsid();\n", sp);
 988         else {
 989                 f_print(fout, "%si = open(\"/dev/tty\", 2);\n", sp);
 990                 f_print(fout, "%sif (i >= 0) {\n", sp);
 991                 f_print(fout,
 992                         "%s\t(void) ioctl(i, TIOCNOTTY, (char *)NULL);\n", sp);
 993                 f_print(fout, "%s\t(void) close(i);\n", sp);
 994                 f_print(fout, "%s}\n", sp);
 995         }
 996         if (!logflag)
 997                 open_log_file(infile, sp);
 998         f_print(fout, "#endif\n");
 999         if (logflag)
1000                 open_log_file(infile, sp);
1001 }
1002
1003 static void
1004 open_log_file(infile, sp)
1005         char *infile;
1006         char *sp;
1007 {
1008         char *s;
1009
1010         s = strrchr(infile, '.');
1011         if (s)
1012                 *s = '\0';
1013         f_print(fout, "%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, infile);
1014         if (s)
1015                 *s = '.';
1016 }
1017
1018
1019
1020
1021 /*
1022  * write a registration for the given transport for Inetd
1023  */
1024 void
1025 write_inetd_register(transp)
1026         char *transp;
1027 {
1028         list *l;
1029         definition *def;
1030         version_list *vp;
1031         char *sp;
1032         int isudp;
1033         char tmpbuf[32];
1034
1035         if (inetdflag)
1036                 sp = "\t";
1037         else
1038                 sp = "";
1039         if (streq(transp, "udp"))
1040                 isudp = 1;
1041         else
1042                 isudp = 0;
1043         f_print(fout, "\n");
1044         if (inetdflag) {
1045                 f_print(fout,
1046                         "\tif ((_rpcfdtype == 0) || (_rpcfdtype == %s)) {\n",
1047                         isudp ? "SOCK_DGRAM" : "SOCK_STREAM");
1048         }
1049         f_print(fout, "%s\t%s = svc%s_create(%s",
1050                 sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK");
1051         if (!isudp)
1052                 f_print(fout, ", 0, 0");
1053         f_print(fout, ");\n");
1054         f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP);
1055         (void) sprintf(_errbuf, "cannot create %s service.", transp);
1056         (void) sprintf(tmpbuf, "%s\t\t", sp);
1057         print_err_message(tmpbuf);
1058         f_print(fout, "%s\t\texit(1);\n", sp);
1059         f_print(fout, "%s\t}\n", sp);
1060
1061         if (inetdflag) {
1062                 f_print(fout, "%s\tif (!_rpcpmstart)\n\t", sp);
1063                 f_print(fout, "%s\tproto = IPPROTO_%s;\n",
1064                                 sp, isudp ? "UDP": "TCP");
1065         }
1066         for (l = defined; l != NULL; l = l->next) {
1067                 def = (definition *) l->val;
1068                 if (def->def_kind != DEF_PROGRAM) {
1069                         continue;
1070                 }
1071                 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
1072                         f_print(fout, "%s\tif (!svc_register(%s, %s, %s, ",
1073                                 sp, TRANSP, def->def_name, vp->vers_name);
1074                         pvname(def->def_name, vp->vers_num);
1075                         if (inetdflag)
1076                                 f_print(fout, ", proto)) {\n");
1077                         else
1078                                 f_print(fout, ", IPPROTO_%s)) {\n",
1079                                         isudp ? "UDP": "TCP");
1080                         (void) sprintf(_errbuf,
1081                                 "unable to register (%s, %s, %s).",
1082                                 def->def_name, vp->vers_name, transp);
1083                         print_err_message(tmpbuf);
1084                         f_print(fout, "%s\t\texit(1);\n", sp);
1085                         f_print(fout, "%s\t}\n", sp);
1086                 }
1087         }
1088         if (inetdflag)
1089                 f_print(fout, "\t}\n");
1090 }