usr.bin/rpcgen/rpc_svcout.c

   1 /*
   2  * $FreeBSD$
   3  *
   4  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
   5  * unrestricted use provided that this legend is included on all tape
   6  * media and as a part of the software program in whole or part.  Users
   7  * may copy or modify Sun RPC without charge, but are not authorized
   8  * to license or distribute it to anyone else except as part of a product or
   9  * program developed by the user.
  10  *
  11  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  12  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  13  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  14  *
  15  * Sun RPC is provided with no support and without any obligation on the
  16  * part of Sun Microsystems, Inc. to assist in its use, correction,
  17  * modification or enhancement.
  18  *
  19  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  20  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  21  * OR ANY PART THEREOF.
  22  *
  23  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  24  * or profits or other special, indirect and consequential damages, even if
  25  * Sun has been advised of the possibility of such damages.
  26  *
  27  * Sun Microsystems, Inc.
  28  * 2550 Garcia Avenue
  29  * Mountain View, California  94043
  30  */
  31
  32 #ident  "@(#)rpc_svcout.c       1.4     90/04/13 SMI"
  33
  34 #ifndef lint
  35 static char sccsid[] = "@(#)rpc_svcout.c 1.29 89/03/30 (C) 1987 SMI";
  36 #endif
  37
  38 /*
  39  * rpc_svcout.c, Server-skeleton outputter for the RPC protocol compiler
  40  * Copyright (C) 1987, Sun Microsystems, Inc.
  41  */
  42 #include <stdio.h>
  43 #include <string.h>
  44 #include "rpc_parse.h"
  45 #include "rpc_util.h"
  46
  47 static char RQSTP[] = "rqstp";
  48 static char TRANSP[] = "transp";
  49 static char ARG[] = "argument";
  50 static char RESULT[] = "result";
  51 static char ROUTINE[] = "local";
  52 static char RETVAL[] = "retval";
  53
  54 char _errbuf[256];      /* For all messages */
  55
  56 void internal_proctype __P(( proc_list * ));
  57 static void write_real_program __P(( definition * ));
  58 static void write_program __P(( definition *, char * ));
  59 static void printerr __P(( char *, char * ));
  60 static void printif __P(( char *, char *, char *, char * ));
  61 static void write_inetmost __P(( char * ));
  62 static void print_return __P(( char * ));
  63 static void print_pmapunset __P(( char * ));
  64 static void print_err_message __P(( char * ));
  65 static void write_timeout_func __P(( void ));
  66 static void write_pm_most __P(( char *, int ));
  67 static void write_rpc_svc_fg __P(( char *, char * ));
  68 static void open_log_file __P(( char *, char * ));
  69 static void write_msg_out __P(( void ));
  70 int nullproc __P(( proc_list * ));
  71
  72
  73 static void
  74 p_xdrfunc(rname, typename)
  75 char* rname;
  76 char* typename;
  77 {
  78         if (Cflag)
  79                 f_print(fout, "\t\txdr_%s = (xdrproc_t) xdr_%s;\n",
  80                         rname, stringfix(typename));
  81         else
  82                 f_print(fout, "\t\txdr_%s = xdr_%s;\n",
  83                         rname, stringfix(typename));
  84 }
  85
  86 void
  87 internal_proctype(plist)
  88         proc_list *plist;
  89 {
  90         f_print(fout, "static ");
  91         ptype(plist->res_prefix, plist->res_type, 1);
  92         f_print(fout, "*");
  93 }
  94
  95
  96 /*
  97  * write most of the service, that is, everything but the registrations.
  98  */
  99 void
 100 write_most(infile, netflag, nomain)
 101         char *infile;           /* our name */
 102         int netflag;
 103         int nomain;
 104 {
 105         if (inetdflag || pmflag) {
 106                 char* var_type;
 107                 var_type = (nomain? "extern" : "static");
 108                 f_print(fout, "%s int _rpcpmstart;", var_type);
 109                 f_print(fout, "\t\t/* Started by a port monitor ? */\n");
 110                 if (!tirpcflag) {
 111                         f_print(fout, "%s int _rpcfdtype;", var_type);
 112                         f_print(fout, "\n\t\t /* Whether Stream or \
 113 Datagram ? */\n");
 114                 }
 115
 116                 if (timerflag) {
 117                         f_print(fout, " /* States a server can be in \
 118 wrt request */\n\n");
 119                         f_print(fout, "#define\t_IDLE 0\n");
 120                         f_print(fout, "#define\t_SERVED 1\n");
 121                         f_print(fout, "#define\t_SERVING 2\n\n");
 122                         f_print(fout, "static int _rpcsvcstate = _IDLE;");
 123                         f_print(fout, "\t /* Set when a request is \
 124 serviced */\n");
 125
 126                         if (mtflag) {
 127                                 f_print(fout, "mutex_t _svcstate_lock;");
 128                                 f_print(fout, "\t\t\t/* Mutex lock for variable _rpcsvcstate */\n");
 129
 130                         }
 131
 132                 }
 133
 134                 write_svc_aux(nomain);
 135         }
 136         /* write out dispatcher and stubs */
 137         write_programs(nomain? (char *)NULL : "static");
 138
 139         if (nomain)
 140                 return;
 141
 142         f_print(fout, "\nmain()\n");
 143         f_print(fout, "{\n");
 144         if (inetdflag) {
 145                 write_inetmost(infile);
 146                 /* Includes call to write_rpc_svc_fg() */
 147         } else {
 148                 if (tirpcflag) {
 149                         if (netflag) {
 150                                 f_print(fout,
 151                                         "\tregister SVCXPRT *%s;\n", TRANSP);
 152                                 f_print(fout,
 153                                         "\tstruct netconfig *nconf = NULL;\n");
 154                         }
 155                         f_print(fout, "\tpid_t pid;\n");
 156                         f_print(fout, "\tint i;\n");
 157                         f_print(fout, "\tchar mname[FMNAMESZ + 1];\n\n");
 158
 159                         if (mtflag & timerflag)
 160                                 f_print(fout, "\tmutex_init(&_svcstate_lock, USYNC_THREAD, NULL);\n");
 161
 162                         write_pm_most(infile, netflag);
 163                         f_print(fout, "\telse {\n");
 164                         write_rpc_svc_fg(infile, "\t\t");
 165                         f_print(fout, "\t}\n");
 166                 } else {
 167                         f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP);
 168                         f_print(fout, "\n");
 169                         print_pmapunset("\t");
 170                 }
 171         }
 172
 173         if (logflag && !inetdflag) {
 174                 open_log_file(infile, "\t");
 175         }
 176 }
 177
 178 /*
 179  * write a registration for the given transport
 180  */
 181 void
 182 write_netid_register(transp)
 183         char *transp;
 184 {
 185         list *l;
 186         definition *def;
 187         version_list *vp;
 188         char *sp;
 189         char tmpbuf[32];
 190
 191         sp = "";
 192         f_print(fout, "\n");
 193         f_print(fout, "%s\tnconf = getnetconfigent(\"%s\");\n", sp, transp);
 194         f_print(fout, "%s\tif (nconf == NULL) {\n", sp);
 195         (void) sprintf(_errbuf, "cannot find %s netid.", transp);
 196         sprintf(tmpbuf, "%s\t\t", sp);
 197         print_err_message(tmpbuf);
 198         f_print(fout, "%s\t\texit(1);\n", sp);
 199         f_print(fout, "%s\t}\n", sp);
 200         f_print(fout, "%s\t%s = svc_tli_create(RPC_ANYFD, nconf, 0, 0, 0);\n",
 201                 sp, TRANSP);
 202         f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP);
 203         (void) sprintf(_errbuf, "cannot create %s service.", transp);
 204         print_err_message(tmpbuf);
 205         f_print(fout, "%s\t\texit(1);\n", sp);
 206         f_print(fout, "%s\t}\n", sp);
 207
 208         for (l = defined; l != NULL; l = l->next) {
 209                 def = (definition *) l->val;
 210                 if (def->def_kind != DEF_PROGRAM) {
 211                         continue;
 212                 }
 213                 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
 214                         f_print(fout,
 215                                 "%s\t(void) rpcb_unset(%s, %s, nconf);\n",
 216                                 sp, def->def_name, vp->vers_name);
 217                         f_print(fout,
 218                                 "%s\tif (!svc_reg(%s, %s, %s, ",
 219                                 sp, TRANSP, def->def_name, vp->vers_name);
 220                         pvname(def->def_name, vp->vers_num);
 221                         f_print(fout, ", nconf)) {\n");
 222                         (void) sprintf(_errbuf,
 223                                 "unable to register (%s, %s, %s).",
 224                                 def->def_name, vp->vers_name, transp);
 225                         print_err_message(tmpbuf);
 226                         f_print(fout, "%s\t\texit(1);\n", sp);
 227                         f_print(fout, "%s\t}\n", sp);
 228                 }
 229         }
 230         f_print(fout, "%s\tfreenetconfigent(nconf);\n", sp);
 231 }
 232
 233 /*
 234  * write a registration for the given transport for TLI
 235  */
 236 void
 237 write_nettype_register(transp)
 238         char *transp;
 239 {
 240         list *l;
 241         definition *def;
 242         version_list *vp;
 243
 244         for (l = defined; l != NULL; l = l->next) {
 245                 def = (definition *) l->val;
 246                 if (def->def_kind != DEF_PROGRAM) {
 247                         continue;
 248                 }
 249                 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
 250                         f_print(fout, "\tif (!svc_create(");
 251                         pvname(def->def_name, vp->vers_num);
 252                         f_print(fout, ", %s, %s, \"%s\")) {\n",
 253                                 def->def_name, vp->vers_name, transp);
 254                         (void) sprintf(_errbuf,
 255                                 "unable to create (%s, %s) for %s.",
 256                                         def->def_name, vp->vers_name, transp);
 257                         print_err_message("\t\t");
 258                         f_print(fout, "\t\texit(1);\n");
 259                         f_print(fout, "\t}\n");
 260                 }
 261         }
 262 }
 263
 264 /*
 265  * write the rest of the service
 266  */
 267 void
 268 write_rest()
 269 {
 270         f_print(fout, "\n");
 271         if (inetdflag) {
 272                 f_print(fout, "\tif (%s == (SVCXPRT *)NULL) {\n", TRANSP);
 273                 (void) sprintf(_errbuf, "could not create a handle");
 274                 print_err_message("\t\t");
 275                 f_print(fout, "\t\texit(1);\n");
 276                 f_print(fout, "\t}\n");
 277                 if (timerflag) {
 278                         f_print(fout, "\tif (_rpcpmstart) {\n");
 279                         f_print(fout,
 280                                 "\t\t(void) signal(SIGALRM, %s closedown);\n",
 281                                 Cflag? "(SIG_PF)":"(void(*)())");
 282                         f_print(fout, "\t\t(void) \
 283 alarm(_RPCSVC_CLOSEDOWN/2);\n");
 284                         f_print(fout, "\t}\n");
 285                 }
 286         }
 287         f_print(fout, "\tsvc_run();\n");
 288         (void) sprintf(_errbuf, "svc_run returned");
 289         print_err_message("\t");
 290         f_print(fout, "\texit(1);\n");
 291         f_print(fout, "\t/* NOTREACHED */\n");
 292         f_print(fout, "}\n");
 293 }
 294
 295 void
 296 write_programs(storage)
 297         char *storage;
 298 {
 299         list *l;
 300         definition *def;
 301
 302         /* write out stubs for procedure  definitions */
 303         for (l = defined; l != NULL; l = l->next) {
 304                 def = (definition *) l->val;
 305                 if (def->def_kind == DEF_PROGRAM) {
 306                         write_real_program(def);
 307                 }
 308         }
 309
 310         /* write out dispatcher for each program */
 311         for (l = defined; l != NULL; l = l->next) {
 312                 def = (definition *) l->val;
 313                 if (def->def_kind == DEF_PROGRAM) {
 314                         write_program(def, storage);
 315                 }
 316         }
 317
 318
 319 }
 320
 321 /*
 322  * write out definition of internal function (e.g. _printmsg_1(...))
 323  *  which calls server's defintion of actual function (e.g. printmsg_1(...)).
 324  *  Unpacks single user argument of printmsg_1 to call-by-value format
 325  *  expected by printmsg_1.
 326  */
 327 static void
 328 write_real_program(def)
 329         definition *def;
 330 {
 331         version_list *vp;
 332         proc_list *proc;
 333         decl_list *l;
 334
 335         if (!newstyle) return;  /* not needed for old style */
 336         for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
 337                 for (proc = vp->procs; proc != NULL; proc = proc->next) {
 338                         f_print(fout, "\n");
 339                         if (!mtflag)
 340                                 internal_proctype(proc);
 341                         else
 342                                 f_print(fout, "int");
 343                         f_print(fout, "\n_");
 344                         pvname(proc->proc_name, vp->vers_num);
 345                         if (Cflag) {
 346                                 f_print(fout, "(");
 347                                 /* arg name */
 348                                 if (proc->arg_num > 1)
 349                                         f_print(fout, proc->args.argname);
 350                                 else
 351                                         ptype(proc->args.decls->decl.prefix,
 352                                               proc->args.decls->decl.type, 0);
 353                                 if (mtflag) {
 354                                         f_print(fout, " *argp, void *%s, struct svc_req *%s)\n",
 355                                                 RESULT, RQSTP);
 356
 357
 358                                 }
 359                                 else
 360                                         f_print(fout, " *argp, struct svc_req *%s)\n",
 361                                                 RQSTP);
 362
 363                         } else {
 364                                 if (mtflag)
 365                                         f_print(fout, "(argp, %s, %s)\n", RESULT, RQSTP);
 366                                 else
 367                                         f_print(fout, "(argp, %s)\n", RQSTP);
 368                                 /* arg name */
 369                                 if (proc->arg_num > 1)
 370                                         f_print(fout, "\t%s *argp;\n",
 371                                                 proc->args.argname);
 372                                 else {
 373                                         f_print(fout, "\t");
 374                                         ptype(proc->args.decls->decl.prefix,
 375                                               proc->args.decls->decl.type, 0);
 376                                         f_print(fout, " *argp;\n");
 377                                 }
 378                                 if (mtflag)
 379                                         f_print(fout, "\tvoid *%s;\n", RESULT);
 380                                 f_print(fout, "\tstruct svc_req *%s;\n", RQSTP);
 381                         }
 382
 383                         f_print(fout, "{\n");
 384                         f_print(fout, "\treturn (");
 385                         if (Cflag || mtflag) /* for mtflag, arguments are different */
 386                                 pvname_svc(proc->proc_name, vp->vers_num);
 387                         else
 388                                 pvname(proc->proc_name, vp->vers_num);
 389                         f_print(fout, "(");
 390                         if (proc->arg_num < 2) { /* single argument */
 391                                 if (!streq(proc->args.decls->decl.type, "void"))
 392                                         f_print(fout, "*argp, "); /* non-void */
 393                         } else {
 394                                 for (l = proc->args.decls;  l != NULL;
 395                                      l = l->next)
 396                                         f_print(fout, "argp->%s, ",
 397                                                 l->decl.name);
 398                         }
 399                         if (mtflag)
 400                                 f_print(fout, "%s, ",RESULT);
 401                         f_print(fout, "%s));\n}\n", RQSTP);
 402                 }
 403         }
 404 }
 405
 406 static void
 407 write_program(def, storage)
 408         definition *def;
 409         char *storage;
 410 {
 411         version_list *vp;
 412         proc_list *proc;
 413         int filled;
 414
 415         for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
 416                 f_print(fout, "\n");
 417                 if (storage != NULL) {
 418                         f_print(fout, "%s ", storage);
 419                 }
 420                 f_print(fout, "void\n");
 421                 pvname(def->def_name, vp->vers_num);
 422
 423                 if (Cflag) {
 424                         f_print(fout, "(struct svc_req *%s, ", RQSTP);
 425                         f_print(fout, "register SVCXPRT *%s)\n", TRANSP);
 426                 } else {
 427                         f_print(fout, "(%s, %s)\n", RQSTP, TRANSP);
 428                         f_print(fout, " struct svc_req *%s;\n", RQSTP);
 429                         f_print(fout, " register SVCXPRT *%s;\n", TRANSP);
 430                 }
 431
 432                 f_print(fout, "{\n");
 433
 434                 filled = 0;
 435                 f_print(fout, "\tunion {\n");
 436                 for (proc = vp->procs; proc != NULL; proc = proc->next) {
 437                         if (proc->arg_num < 2) { /* single argument */
 438                                 if (streq(proc->args.decls->decl.type,
 439                                           "void")) {
 440                                         continue;
 441                                 }
 442                                 filled = 1;
 443                                 f_print(fout, "\t\t");
 444                                 ptype(proc->args.decls->decl.prefix,
 445                                       proc->args.decls->decl.type, 0);
 446                                 pvname(proc->proc_name, vp->vers_num);
 447                                 f_print(fout, "_arg;\n");
 448
 449                         } else {
 450                                 filled = 1;
 451                                 f_print(fout, "\t\t%s", proc->args.argname);
 452                                 f_print(fout, " ");
 453                                 pvname(proc->proc_name, vp->vers_num);
 454                                 f_print(fout, "_arg;\n");
 455                         }
 456                 }
 457                 if (!filled) {
 458                         f_print(fout, "\t\tint fill;\n");
 459                 }
 460                 f_print(fout, "\t} %s;\n", ARG);
 461
 462                 if (mtflag) {
 463                         f_print(fout, "\tunion {\n");
 464                         for (proc = vp->procs; proc != NULL; proc = proc->next) {
 465                                 f_print(fout, "\t\t");
 466                                 ptype(proc->res_prefix, proc->res_type, 0);
 467                                 pvname(proc->proc_name, vp->vers_num);
 468                                 f_print(fout, "_res;\n");
 469                         }
 470                         f_print(fout, "\t} %s;\n", RESULT);
 471                         f_print(fout, "\tbool_t %s;\n", RETVAL);
 472
 473                 } else
 474                         f_print(fout, "\tchar *%s;\n", RESULT);
 475
 476                 if (Cflag) {
 477                         f_print(fout, "\txdrproc_t xdr_%s, xdr_%s;\n",
 478                                 ARG, RESULT);
 479                         if (mtflag)
 480                                 f_print(fout,
 481                                         "\tbool_t (*%s)(char *, void *, struct svc_req *);\n",
 482                                         ROUTINE);
 483                         else
 484                                 f_print(fout,
 485                                         "\tchar *(*%s)(char *, struct svc_req *);\n",
 486                                         ROUTINE);
 487                 } else {
 488                         f_print(fout,
 489                                 "\tbool_t (*xdr_%s)(), (*xdr_%s)();\n",
 490                                 ARG, RESULT);
 491                         if (mtflag)
 492                                 f_print(fout, "\tbool_t (*%s)();\n", ROUTINE);
 493                         else
 494                                 f_print(fout, "\tchar *(*%s)();\n", ROUTINE);
 495                 }
 496                 f_print(fout, "\n");
 497
 498                 if (timerflag) {
 499                         if (mtflag)
 500                                 f_print(fout, "\tmutex_lock(&_svcstate_lock);\n");
 501
 502                         f_print(fout, "\t_rpcsvcstate = _SERVING;\n");
 503                         if (mtflag)
 504                                 f_print(fout, "\tmutex_unlock(&_svcstate_lock);\n");
 505                 }
 506
 507                 f_print(fout, "\tswitch (%s->rq_proc) {\n", RQSTP);
 508                 if (!nullproc(vp->procs)) {
 509                         f_print(fout, "\tcase NULLPROC:\n");
 510                         f_print(fout,
 511                                 Cflag
 512                                 ? "\t\t(void) svc_sendreply(%s,\n\t\t\t\
 513 (xdrproc_t) xdr_void, (char *)NULL);\n"
 514                                 : "\t\t(void) svc_sendreply(%s, xdr_void,\n\t\t\t\
 515 (char *)NULL);\n",
 516                                 TRANSP);
 517                         print_return("\t\t");
 518                         f_print(fout, "\n");
 519                 }
 520                 for (proc = vp->procs; proc != NULL; proc = proc->next) {
 521                         f_print(fout, "\tcase %s:\n", proc->proc_name);
 522                         if (proc->arg_num < 2) { /* single argument */
 523                                 p_xdrfunc(ARG, proc->args.decls->decl.type);
 524                         } else {
 525                                 p_xdrfunc(ARG, proc->args.argname);
 526                         }
 527                         p_xdrfunc(RESULT, proc->res_type);
 528
 529                         if (Cflag)
 530                                 if (mtflag)
 531                                         f_print(fout,
 532                                                 "\t\t%s = (bool_t (*) (char *,  void *,  struct svc_req *))",
 533                                                 ROUTINE);
 534                                 else
 535                                         f_print(fout,
 536                                                 "\t\t%s = (char *(*)(char *, struct svc_req *)) ",
 537                                                 ROUTINE);
 538                         else
 539                                 if (mtflag)
 540                                         f_print(fout, "\t\t%s = (bool_t (*)()) ",
 541                                                 ROUTINE);
 542                                 else
 543
 544                                         f_print(fout, "\t\t%s = (char *(*)()) ",
 545                                                 ROUTINE);
 546                         if (newstyle) { /* new style: calls internal routine */
 547                                 f_print(fout, "_");
 548                         }
 549                         if ((Cflag || mtflag) && !newstyle)
 550                                 pvname_svc(proc->proc_name, vp->vers_num);
 551                         else
 552                                 pvname(proc->proc_name, vp->vers_num);
 553                         f_print(fout, ";\n");
 554                         f_print(fout, "\t\tbreak;\n\n");
 555                 }
 556                 f_print(fout, "\tdefault:\n");
 557                 printerr("noproc", TRANSP);
 558                 print_return("\t\t");
 559                 f_print(fout, "\t}\n");
 560
 561                 f_print(fout,
 562                         "\t(void) memset((char *)&%s, 0, sizeof (%s));\n",
 563                         ARG, ARG);
 564                 if (Cflag)
 565                         printif("getargs", TRANSP, "(caddr_t) &", ARG);
 566                 else
 567                         printif("getargs", TRANSP, "&", ARG);
 568                 printerr("decode", TRANSP);
 569                 print_return("\t\t");
 570                 f_print(fout, "\t}\n");
 571
 572                 if (!mtflag)
 573                         if (Cflag)
 574                                 f_print(fout, "\t%s = (*%s)((char *)&%s, %s);\n",
 575                                         RESULT, ROUTINE, ARG, RQSTP);
 576                         else
 577                                 f_print(fout, "\t%s = (*%s)(&%s, %s);\n",
 578                                         RESULT, ROUTINE, ARG, RQSTP);
 579                 else
 580                         if (Cflag)
 581                                 f_print(fout, "\t%s = (bool_t) (*%s)((char *)&%s, (void *)&%s, %s);\n",
 582                                         RETVAL, ROUTINE, ARG, RESULT, RQSTP);
 583                         else
 584                                 f_print(fout, "\t%s = (bool_t) (*%s)(&%s, &%s, %s);\n",
 585                                         RETVAL, ROUTINE, ARG, RESULT, RQSTP);
 586
 587
 588
 589
 590                 if (mtflag)
 591                         f_print(fout,
 592                                 "\tif (%s > 0 && !svc_sendreply(%s, xdr_%s, (char *)&%s)) {\n",
 593                                 RETVAL, TRANSP, RESULT, RESULT);
 594                 else
 595                         f_print(fout,
 596                                 "\tif (%s != NULL && !svc_sendreply(%s, xdr_%s, %s)) {\n",
 597                                 RESULT, TRANSP, RESULT, RESULT);
 598
 599                 printerr("systemerr", TRANSP);
 600                 f_print(fout, "\t}\n");
 601
 602                 if (Cflag)
 603                         printif("freeargs", TRANSP, "(caddr_t) &", ARG);
 604                 else
 605                         printif("freeargs", TRANSP, "&", ARG);
 606                 (void) sprintf(_errbuf, "unable to free arguments");
 607                 print_err_message("\t\t");
 608                 f_print(fout, "\t\texit(1);\n");
 609                 f_print(fout, "\t}\n");
 610                 /* print out free routine */
 611                 if (mtflag) {
 612                         f_print(fout,"\tif (!");
 613                         pvname(def->def_name, vp->vers_num);
 614                         f_print(fout,"_freeresult(%s, xdr_%s, (caddr_t) &%s))\n",
 615                                 TRANSP, RESULT, RESULT);
 616                         (void) sprintf(_errbuf, "unable to free results");
 617                         print_err_message("\t\t");
 618                         f_print(fout, "\n");
 619                 };
 620                 print_return("\t");
 621                 f_print(fout, "}\n");
 622         }
 623 }
 624
 625 static void
 626 printerr(err, transp)
 627         char *err;
 628         char *transp;
 629 {
 630         f_print(fout, "\t\tsvcerr_%s(%s);\n", err, transp);
 631 }
 632
 633 static void
 634 printif(proc, transp, prefix, arg)
 635         char *proc;
 636         char *transp;
 637         char *prefix;
 638         char *arg;
 639 {
 640         f_print(fout, "\tif (!svc_%s(%s, xdr_%s, (char *)%s%s)) {\n",
 641                 proc, transp, arg, prefix, arg);
 642 }
 643
 644 int
 645 nullproc(proc)
 646         proc_list *proc;
 647 {
 648         for (; proc != NULL; proc = proc->next) {
 649                 if (streq(proc->proc_num, "0")) {
 650                         return (1);
 651                 }
 652         }
 653         return (0);
 654 }
 655
 656 static void
 657 write_inetmost(infile)
 658         char *infile;
 659 {
 660         f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP);
 661         f_print(fout, "\tint sock;\n");
 662         f_print(fout, "\tint proto;\n");
 663         f_print(fout, "\tstruct sockaddr_in saddr;\n");
 664         f_print(fout, "\tint asize = sizeof (saddr);\n");
 665         f_print(fout, "\n");
 666         f_print(fout,
 667         "\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n");
 668         f_print(fout, "\t\tint ssize = sizeof (int);\n\n");
 669         f_print(fout, "\t\tif (saddr.sin_family != AF_INET)\n");
 670         f_print(fout, "\t\t\texit(1);\n");
 671         f_print(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n");
 672         f_print(fout, "\t\t\t\t(char *)&_rpcfdtype, &ssize) == -1)\n");
 673         f_print(fout, "\t\t\texit(1);\n");
 674         f_print(fout, "\t\tsock = 0;\n");
 675         f_print(fout, "\t\t_rpcpmstart = 1;\n");
 676         f_print(fout, "\t\tproto = 0;\n");
 677         open_log_file(infile, "\t\t");
 678         f_print(fout, "\t} else {\n");
 679         write_rpc_svc_fg(infile, "\t\t");
 680         f_print(fout, "\t\tsock = RPC_ANYSOCK;\n");
 681         print_pmapunset("\t\t");
 682         f_print(fout, "\t}\n");
 683 }
 684
 685 static void
 686 print_return(space)
 687         char *space;
 688 {
 689         if (exitnow)
 690                 f_print(fout, "%sexit(0);\n", space);
 691         else {
 692                 if (timerflag) {
 693                         if (mtflag)
 694                                 f_print(fout, "%smutex_lock(&_svcstate_lock);\n", space);
 695                                 f_print(fout, "%s_rpcsvcstate = _SERVED;\n", space);
 696                         if (mtflag)
 697                                 f_print(fout, "%smutex_unlock(&_svcstate_lock);\n", space);
 698                 }
 699                 f_print(fout, "%sreturn;\n", space);
 700         }
 701 }
 702
 703 static void
 704 print_pmapunset(space)
 705         char *space;
 706 {
 707         list *l;
 708         definition *def;
 709         version_list *vp;
 710
 711         for (l = defined; l != NULL; l = l->next) {
 712                 def = (definition *) l->val;
 713                 if (def->def_kind == DEF_PROGRAM) {
 714                         for (vp = def->def.pr.versions; vp != NULL;
 715                                         vp = vp->next) {
 716                                 f_print(fout, "%s(void) pmap_unset(%s, %s);\n",
 717                                         space, def->def_name, vp->vers_name);
 718                         }
 719                 }
 720         }
 721 }
 722
 723 static void
 724 print_err_message(space)
 725         char *space;
 726 {
 727         if (logflag)
 728                 f_print(fout, "%ssyslog(LOG_ERR, \"%s\");\n", space, _errbuf);
 729         else if (inetdflag || pmflag)
 730                 f_print(fout, "%s_msgout(\"%s\");\n", space, _errbuf);
 731         else
 732                 f_print(fout, "%sfprintf(stderr, \"%s\");\n", space, _errbuf);
 733 }
 734
 735 /*
 736  * Write the server auxiliary function (_msgout, timeout)
 737  */
 738 void
 739 write_svc_aux(nomain)
 740         int nomain;
 741 {
 742         if (!logflag)
 743                 write_msg_out();
 744         if (!nomain)
 745                 write_timeout_func();
 746 }
 747
 748 /*
 749  * Write the _msgout function
 750  */
 751
 752 static void
 753 write_msg_out(void)
 754 {
 755         f_print(fout, "\n");
 756 /*
 757  * Avoid making _msgout() static -- it's useful to have it visible
 758  * in the toplevel RPC server code.
 759  */
 760         f_print(fout, "static\n");
 761
 762         if (!Cflag) {
 763                 f_print(fout, "void _msgout(msg)\n");
 764                 f_print(fout, "\tchar *msg;\n");
 765         } else {
 766                 f_print(fout, "void _msgout(char* msg)\n");
 767         }
 768         f_print(fout, "{\n");
 769         f_print(fout, "#ifdef RPC_SVC_FG\n");
 770         if (inetdflag || pmflag)
 771                 f_print(fout, "\tif (_rpcpmstart)\n");
 772         f_print(fout, "\t\tsyslog(LOG_ERR, \"%%s\", msg);\n");
 773         f_print(fout, "\telse\n");
 774         f_print(fout,
 775                 "\t\t(void) fprintf(stderr, \"%%s\\n\", msg);\n");
 776         f_print(fout, "#else\n");
 777         f_print(fout, "\tsyslog(LOG_ERR, \"%%s\", msg);\n");
 778         f_print(fout, "#endif\n");
 779         f_print(fout, "}\n");
 780 }
 781
 782 /*
 783  * Write the timeout function
 784  */
 785 static void
 786 write_timeout_func(void)
 787 {
 788         if (!timerflag)
 789                 return;
 790
 791         f_print(fout, "\n");
 792         f_print(fout, "static void\n");
 793         if (!Cflag) {
 794                 f_print(fout, "closedown(sig)\n");
 795                 f_print(fout, "\tint sig;\n");
 796         } else
 797                 f_print(fout, "closedown(int sig)\n");
 798         f_print(fout, "{\n");
 799         if (mtflag)
 800                 f_print(fout, "\tmutex_lock(&_svcstate_lock);\n");
 801         f_print(fout, "\tif (_rpcsvcstate == _IDLE) {\n");
 802         f_print(fout, "\t\textern fd_set svc_fdset;\n");
 803         f_print(fout, "\t\tstatic int size;\n");
 804         f_print(fout, "\t\tint i, openfd;\n");
 805         if (tirpcflag && pmflag) {
 806                 f_print(fout, "\t\tstruct t_info tinfo;\n\n");
 807                 f_print(fout,
 808                         "\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n");
 809         } else {
 810                 f_print(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n");
 811         }
 812         f_print(fout, "\t\t\texit(0);\n");
 813         f_print(fout, "\t\tif (size == 0) {\n");
 814         if (tirpcflag) {
 815                 f_print(fout, "\t\t\tstruct rlimit rl;\n\n");
 816                 f_print(fout, "\t\t\trl.rlim_max = 0;\n");
 817                 f_print(fout, "\t\t\tgetrlimit(RLIMIT_NOFILE, &rl);\n");
 818                 f_print(fout, "\t\t\tif ((size = rl.rlim_max) == 0) {\n");
 819
 820                 if (mtflag)
 821                         f_print(fout, "\t\t\t\tmutex_unlock(&_svcstate_lock);\n");
 822
 823                 f_print(fout, "\t\t\t\treturn;\n\t\t\t}\n");
 824         } else {
 825                 f_print(fout, "\t\t\tsize = getdtablesize();\n");
 826         }
 827         f_print(fout, "\t\t}\n");
 828         f_print(fout,
 829                 "\t\tfor (i = 0, openfd = 0; i < size && openfd < 2; i++)\n");
 830         f_print(fout, "\t\t\tif (FD_ISSET(i, &svc_fdset))\n");
 831         f_print(fout, "\t\t\t\topenfd++;\n");
 832         f_print(fout, "\t\tif (openfd <= 1)\n");
 833         f_print(fout, "\t\t\texit(0);\n");
 834         f_print(fout, "\t}\n");
 835         f_print(fout, "\tif (_rpcsvcstate == _SERVED)\n");
 836         f_print(fout, "\t\t_rpcsvcstate = _IDLE;\n\n");
 837         if (mtflag)
 838                 f_print(fout, "\tmutex_unlock(&_svcstate_lock);\n");
 839
 840         f_print(fout, "\t(void) signal(SIGALRM, %s closedown);\n",
 841                                 Cflag? "(SIG_PF)" : "(void(*)())");
 842         f_print(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN/2);\n");
 843         f_print(fout, "}\n");
 844
 845 }
 846
 847 /*
 848  * Write the most of port monitor support
 849  */
 850 static void
 851 write_pm_most(infile, netflag)
 852         char *infile;
 853         int netflag;
 854 {
 855         list *l;
 856         definition *def;
 857         version_list *vp;
 858
 859         f_print(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n");
 860         f_print(fout, "\t\t(!strcmp(mname, \"sockmod\") ||");
 861         f_print(fout, " !strcmp(mname, \"timod\"))) {\n");
 862         f_print(fout, "\t\tchar *netid;\n");
 863         if (!netflag) { /* Not included by -n option */
 864                 f_print(fout, "\t\tstruct netconfig *nconf = NULL;\n");
 865                 f_print(fout, "\t\tSVCXPRT *%s;\n", TRANSP);
 866         }
 867         if (timerflag)
 868                 f_print(fout, "\t\tint pmclose;\n");
 869 /*
 870  *  Not necessary, defined in /usr/include/stdlib
 871  *  f_print(fout, "\t\textern char *getenv();\n");
 872  */
 873         f_print(fout, "\n");
 874         f_print(fout, "\t\t_rpcpmstart = 1;\n");
 875         open_log_file(infile, "\t\t");
 876         f_print(fout, "\n\t\tif ((netid = \
 877 getenv(\"NLSPROVIDER\")) == NULL) {\n");
 878
 879         if (timerflag) {
 880                 f_print(fout, "\t\t/* started from inetd */\n");
 881                 f_print(fout, "\t\t\tpmclose = 1;\n");
 882         }
 883         f_print(fout,
 884                 "\t\t} else {\n");
 885         f_print(fout, "\t\t\tif ((nconf = getnetconfigent(netid)) == NULL)\n");
 886         sprintf(_errbuf, "cannot get transport info");
 887         print_err_message("\t\t\t\t");
 888         if (timerflag)
 889                 f_print(fout, "\n\t\t\tpmclose = \
 890 (t_getstate(0) != T_DATAXFER);\n");
 891         f_print(fout, "\t\t}\n");
 892         /*
 893          * A kludgy support for inetd services. Inetd only works with
 894          * sockmod, and RPC works only with timod, hence all this jugglery
 895          */
 896         f_print(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n");
 897         f_print(fout,
 898                 "\t\t\tif (ioctl(0, I_POP, 0) || \
 899 ioctl(0, I_PUSH, \"timod\")) {\n");
 900         sprintf(_errbuf, "could not get the right module");
 901         print_err_message("\t\t\t\t");
 902         f_print(fout, "\t\t\t\texit(1);\n");
 903         f_print(fout, "\t\t\t}\n");
 904         f_print(fout, "\t\t}\n");
 905         f_print(fout,
 906                 "\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) \
 907 == NULL) {\n",
 908                 TRANSP);
 909         sprintf(_errbuf, "cannot create server handle");
 910         print_err_message("\t\t\t");
 911         f_print(fout, "\t\t\texit(1);\n");
 912         f_print(fout, "\t\t}\n");
 913         f_print(fout, "\t\tif (nconf)\n");
 914         f_print(fout, "\t\t\tfreenetconfigent(nconf);\n");
 915         for (l = defined; l != NULL; l = l->next) {
 916                 def = (definition *) l->val;
 917                 if (def->def_kind != DEF_PROGRAM) {
 918                         continue;
 919                 }
 920                 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
 921                         f_print(fout,
 922                                 "\t\tif (!svc_reg(%s, %s, %s, ",
 923                                 TRANSP, def->def_name, vp->vers_name);
 924                         pvname(def->def_name, vp->vers_num);
 925                         f_print(fout, ", 0)) {\n");
 926                         (void) sprintf(_errbuf, "unable to register (%s, %s).",
 927                                         def->def_name, vp->vers_name);
 928                         print_err_message("\t\t\t");
 929                         f_print(fout, "\t\t\texit(1);\n");
 930                         f_print(fout, "\t\t}\n");
 931                 }
 932         }
 933         if (timerflag) {
 934                 f_print(fout, "\t\tif (pmclose) {\n");
 935                 f_print(fout, "\t\t\t(void) signal(SIGALRM, %s closedown);\n",
 936                                 Cflag? "(SIG_PF)" : "(void(*)())");
 937                 f_print(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN/2);\n");
 938                 f_print(fout, "\t\t}\n");
 939         }
 940         f_print(fout, "\t\tsvc_run();\n");
 941         f_print(fout, "\t\texit(1);\n");
 942         f_print(fout, "\t\t/* NOTREACHED */\n");
 943         f_print(fout, "\t}");
 944 }
 945
 946 /*
 947  * Support for backgrounding the server if self started.
 948  */
 949 static void
 950 write_rpc_svc_fg(infile, sp)
 951         char *infile;
 952         char *sp;
 953 {
 954         f_print(fout, "#ifndef RPC_SVC_FG\n");
 955         f_print(fout, "%sint size;\n", sp);
 956         if (tirpcflag)
 957                 f_print(fout, "%sstruct rlimit rl;\n", sp);
 958         if (inetdflag)
 959                 f_print(fout, "%sint pid, i;\n\n", sp);
 960         f_print(fout, "%spid = fork();\n", sp);
 961         f_print(fout, "%sif (pid < 0) {\n", sp);
 962         f_print(fout, "%s\tperror(\"cannot fork\");\n", sp);
 963         f_print(fout, "%s\texit(1);\n", sp);
 964         f_print(fout, "%s}\n", sp);
 965         f_print(fout, "%sif (pid)\n", sp);
 966         f_print(fout, "%s\texit(0);\n", sp);
 967         /* get number of file descriptors */
 968         if (tirpcflag) {
 969                 f_print(fout, "%srl.rlim_max = 0;\n", sp);
 970                 f_print(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp);
 971                 f_print(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp);
 972                 f_print(fout, "%s\texit(1);\n", sp);
 973         } else {
 974                 f_print(fout, "%ssize = getdtablesize();\n", sp);
 975         }
 976
 977         f_print(fout, "%sfor (i = 0; i < size; i++)\n", sp);
 978         f_print(fout, "%s\t(void) close(i);\n", sp);
 979         /* Redirect stderr and stdout to console */
 980         f_print(fout, "%si = open(\"/dev/console\", 2);\n", sp);
 981         f_print(fout, "%s(void) dup2(i, 1);\n", sp);
 982         f_print(fout, "%s(void) dup2(i, 2);\n", sp);
 983         /* This removes control of the controlling terminal */
 984         if (tirpcflag)
 985                 f_print(fout, "%ssetsid();\n", sp);
 986         else {
 987                 f_print(fout, "%si = open(\"/dev/tty\", 2);\n", sp);
 988                 f_print(fout, "%sif (i >= 0) {\n", sp);
 989                 f_print(fout,
 990                         "%s\t(void) ioctl(i, TIOCNOTTY, (char *)NULL);\n", sp);
 991                 f_print(fout, "%s\t(void) close(i);\n", sp);
 992                 f_print(fout, "%s}\n", sp);
 993         }
 994         if (!logflag)
 995                 open_log_file(infile, sp);
 996         f_print(fout, "#endif\n");
 997         if (logflag)
 998                 open_log_file(infile, sp);
 999 }
1000
1001 static void
1002 open_log_file(infile, sp)
1003         char *infile;
1004         char *sp;
1005 {
1006         char *s;
1007
1008         s = strrchr(infile, '.');
1009         if (s)
1010                 *s = '\0';
1011         f_print(fout, "%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, infile);
1012         if (s)
1013                 *s = '.';
1014 }
1015
1016
1017
1018
1019 /*
1020  * write a registration for the given transport for Inetd
1021  */
1022 void
1023 write_inetd_register(transp)
1024         char *transp;
1025 {
1026         list *l;
1027         definition *def;
1028         version_list *vp;
1029         char *sp;
1030         int isudp;
1031         char tmpbuf[32];
1032
1033         if (inetdflag)
1034                 sp = "\t";
1035         else
1036                 sp = "";
1037         if (streq(transp, "udp"))
1038                 isudp = 1;
1039         else
1040                 isudp = 0;
1041         f_print(fout, "\n");
1042         if (inetdflag) {
1043                 f_print(fout,
1044                         "\tif ((_rpcfdtype == 0) || (_rpcfdtype == %s)) {\n",
1045                         isudp ? "SOCK_DGRAM" : "SOCK_STREAM");
1046         }
1047         f_print(fout, "%s\t%s = svc%s_create(%s",
1048                 sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK");
1049         if (!isudp)
1050                 f_print(fout, ", 0, 0");
1051         f_print(fout, ");\n");
1052         f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP);
1053         (void) sprintf(_errbuf, "cannot create %s service.", transp);
1054         (void) sprintf(tmpbuf, "%s\t\t", sp);
1055         print_err_message(tmpbuf);
1056         f_print(fout, "%s\t\texit(1);\n", sp);
1057         f_print(fout, "%s\t}\n", sp);
1058
1059         if (inetdflag) {
1060                 f_print(fout, "%s\tif (!_rpcpmstart)\n\t", sp);
1061                 f_print(fout, "%s\tproto = IPPROTO_%s;\n",
1062                                 sp, isudp ? "UDP": "TCP");
1063         }
1064         for (l = defined; l != NULL; l = l->next) {
1065                 def = (definition *) l->val;
1066                 if (def->def_kind != DEF_PROGRAM) {
1067                         continue;
1068                 }
1069                 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
1070                         f_print(fout, "%s\tif (!svc_register(%s, %s, %s, ",
1071                                 sp, TRANSP, def->def_name, vp->vers_name);
1072                         pvname(def->def_name, vp->vers_num);
1073                         if (inetdflag)
1074                                 f_print(fout, ", proto)) {\n");
1075                         else
1076                                 f_print(fout, ", IPPROTO_%s)) {\n",
1077                                         isudp ? "UDP": "TCP");
1078                         (void) sprintf(_errbuf,
1079                                 "unable to register (%s, %s, %s).",
1080                                 def->def_name, vp->vers_name, transp);
1081                         print_err_message(tmpbuf);
1082                         f_print(fout, "%s\t\texit(1);\n", sp);
1083                         f_print(fout, "%s\t}\n", sp);
1084                 }
1085         }
1086         if (inetdflag)
1087                 f_print(fout, "\t}\n");
1088 }