rpc_svcout.c revision 1.6
1 /* $NetBSD: rpc_svcout.c,v 1.6 1995/06/11 21:50:05 pk Exp $ */ 2 /* 3 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 4 * unrestricted use provided that this legend is included on all tape 5 * media and as a part of the software program in whole or part. Users 6 * may copy or modify Sun RPC without charge, but are not authorized 7 * to license or distribute it to anyone else except as part of a product or 8 * program developed by the user or with the express written consent of 9 * Sun Microsystems, Inc. 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 #ifndef lint 33 static char sccsid[] = "@(#)rpc_svcout.c 1.29 89/03/30 (C) 1987 SMI"; 34 #endif 35 36 /* 37 * rpc_svcout.c, Server-skeleton outputter for the RPC protocol compiler 38 */ 39 #include <sys/cdefs.h> 40 #include <stdio.h> 41 #include <string.h> 42 #include "rpc_parse.h" 43 #include "rpc_util.h" 44 45 static char RQSTP[] = "rqstp"; 46 static char TRANSP[] = "transp"; 47 static char ARG[] = "argument"; 48 static char RESULT[] = "result"; 49 static char ROUTINE[] = "local"; 50 51 char _errbuf[256]; /* For all messages */ 52 53 void internal_proctype __P((proc_list *)); 54 static write_real_program __P((definition *)); 55 static write_program __P((definition *, char *)); 56 static printerr __P((char *, char *)); 57 static printif __P((char *, char *, char *, char *)); 58 static write_inetmost __P((char *)); 59 static print_return __P((char *)); 60 static print_pmapunset __P((char *)); 61 static print_err_message __P((char *)); 62 static write_timeout_func __P((void)); 63 static write_pm_most __P((char *, int)); 64 static write_caller_func __P((void)); 65 static write_rpc_svc_fg __P((char *, char *)); 66 static open_log_file __P((char *, char *)); 67 68 static 69 p_xdrfunc( rname, typename ) 70 char* rname; 71 char* typename; 72 { 73 if( Cflag ) 74 f_print(fout, "\t\txdr_%s = (xdrproc_t) xdr_%s;\n", rname, 75 stringfix(typename) ); 76 else 77 f_print(fout, "\t\txdr_%s = xdr_%s;\n", rname, stringfix(typename) ); 78 } 79 80 void 81 internal_proctype(plist) 82 proc_list *plist; 83 { 84 f_print(fout, "static "); 85 ptype( plist->res_prefix, plist->res_type, 1 ); 86 f_print( fout, "*" ); 87 } 88 89 90 /* 91 * write most of the service, that is, everything but the registrations. 92 */ 93 void 94 write_most(infile, netflag, nomain) 95 char *infile; /* our name */ 96 int netflag; 97 int nomain; 98 { 99 if (inetdflag || pmflag) { 100 char* var_type; 101 var_type = (nomain? "extern" : "static"); 102 f_print(fout, "%s int _rpcpmstart;", var_type ); 103 f_print(fout, "\t\t/* Started by a port monitor ? */\n"); 104 f_print(fout, "%s int _rpcfdtype;", var_type ); 105 f_print(fout, "\t\t/* Whether Stream or Datagram ? */\n"); 106 if (timerflag) { 107 f_print(fout, "%s int _rpcsvcdirty;", var_type ); 108 f_print(fout, "\t/* Still serving ? */\n"); 109 } 110 write_svc_aux( nomain ); 111 } 112 /* write out dispatcher and stubs */ 113 write_programs( nomain? (char *)NULL : "static" ); 114 115 if( nomain ) 116 return; 117 118 f_print(fout, "\nmain()\n"); 119 f_print(fout, "{\n"); 120 if (inetdflag) { 121 write_inetmost(infile); /* Includes call to write_rpc_svc_fg() */ 122 } else { 123 if( tirpcflag ) { 124 if (netflag) { 125 f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP); 126 f_print(fout, "\tstruct netconfig *nconf = NULL;\n"); 127 } 128 f_print(fout, "\tpid_t pid;\n"); 129 f_print(fout, "\tint i;\n"); 130 f_print(fout, "\tchar mname[FMNAMESZ + 1];\n\n"); 131 write_pm_most(infile, netflag); 132 f_print(fout, "\telse {\n"); 133 write_rpc_svc_fg(infile, "\t\t"); 134 f_print(fout, "\t}\n"); 135 } else { 136 f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP); 137 f_print(fout, "\n"); 138 print_pmapunset("\t"); 139 } 140 } 141 142 if (logflag && !inetdflag) { 143 open_log_file(infile, "\t"); 144 } 145 } 146 147 /* 148 * write a registration for the given transport 149 */ 150 void 151 write_netid_register(transp) 152 char *transp; 153 { 154 list *l; 155 definition *def; 156 version_list *vp; 157 char *sp; 158 char tmpbuf[32]; 159 160 sp = ""; 161 f_print(fout, "\n"); 162 f_print(fout, "%s\tnconf = getnetconfigent(\"%s\");\n", sp, transp); 163 f_print(fout, "%s\tif (nconf == NULL) {\n", sp); 164 (void) sprintf(_errbuf, "cannot find %s netid.", transp); 165 sprintf(tmpbuf, "%s\t\t", sp); 166 print_err_message(tmpbuf); 167 f_print(fout, "%s\t\texit(1);\n", sp); 168 f_print(fout, "%s\t}\n", sp); 169 f_print(fout, "%s\t%s = svc_tli_create(RPC_ANYFD, nconf, 0, 0, 0);\n", 170 sp, TRANSP, transp); 171 f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP); 172 (void) sprintf(_errbuf, "cannot create %s service.", transp); 173 print_err_message(tmpbuf); 174 f_print(fout, "%s\t\texit(1);\n", sp); 175 f_print(fout, "%s\t}\n", sp); 176 177 for (l = defined; l != NULL; l = l->next) { 178 def = (definition *) l->val; 179 if (def->def_kind != DEF_PROGRAM) { 180 continue; 181 } 182 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 183 f_print(fout, 184 "%s\t(void) rpcb_unset(%s, %s, nconf);\n", 185 sp, def->def_name, vp->vers_name); 186 f_print(fout, 187 "%s\tif (!svc_reg(%s, %s, %s, ", 188 sp, TRANSP, def->def_name, vp->vers_name); 189 pvname(def->def_name, vp->vers_num); 190 f_print(fout, ", nconf)) {\n"); 191 (void) sprintf(_errbuf, "unable to register (%s, %s, %s).", 192 def->def_name, vp->vers_name, transp); 193 print_err_message(tmpbuf); 194 f_print(fout, "%s\t\texit(1);\n", sp); 195 f_print(fout, "%s\t}\n", sp); 196 } 197 } 198 f_print(fout, "%s\tfreenetconfigent(nconf);\n", sp); 199 } 200 201 /* 202 * write a registration for the given transport for TLI 203 */ 204 void 205 write_nettype_register(transp) 206 char *transp; 207 { 208 list *l; 209 definition *def; 210 version_list *vp; 211 212 for (l = defined; l != NULL; l = l->next) { 213 def = (definition *) l->val; 214 if (def->def_kind != DEF_PROGRAM) { 215 continue; 216 } 217 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 218 f_print(fout, "\tif (!svc_create("); 219 pvname(def->def_name, vp->vers_num); 220 f_print(fout, ", %s, %s, \"%s\")) {\n ", 221 def->def_name, vp->vers_name, transp); 222 (void) sprintf(_errbuf, 223 "unable to create (%s, %s) for %s.", 224 def->def_name, vp->vers_name, transp); 225 print_err_message("\t\t"); 226 f_print(fout, "\t\texit(1);\n"); 227 f_print(fout, "\t}\n"); 228 } 229 } 230 } 231 232 /* 233 * write the rest of the service 234 */ 235 void 236 write_rest() 237 { 238 f_print(fout, "\n"); 239 if (inetdflag) { 240 f_print(fout, "\tif (%s == (SVCXPRT *)NULL) {\n", TRANSP); 241 (void) sprintf(_errbuf, "could not create a handle"); 242 print_err_message("\t\t"); 243 f_print(fout, "\t\texit(1);\n"); 244 f_print(fout, "\t}\n"); 245 if (timerflag) { 246 f_print(fout, "\tif (_rpcpmstart) {\n"); 247 f_print(fout, 248 "\t\t(void) signal(SIGALRM, %s closedown);\n", 249 Cflag? "(SIG_PF)" : "(void(*)())" ); 250 f_print(fout, "\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 251 f_print(fout, "\t}\n"); 252 } 253 } 254 f_print(fout, "\tsvc_run();\n"); 255 (void) sprintf(_errbuf, "svc_run returned"); 256 print_err_message("\t"); 257 f_print(fout, "\texit(1);\n"); 258 f_print(fout, "\t/* NOTREACHED */\n"); 259 f_print(fout, "}\n"); 260 } 261 262 void 263 write_programs(storage) 264 char *storage; 265 { 266 list *l; 267 definition *def; 268 269 /* write out stubs for procedure definitions */ 270 for (l = defined; l != NULL; l = l->next) { 271 def = (definition *) l->val; 272 if (def->def_kind == DEF_PROGRAM) { 273 write_real_program(def); 274 } 275 } 276 277 /* write out dispatcher for each program */ 278 for (l = defined; l != NULL; l = l->next) { 279 def = (definition *) l->val; 280 if (def->def_kind == DEF_PROGRAM) { 281 write_program(def, storage); 282 } 283 } 284 285 286 } 287 288 /* write out definition of internal function (e.g. _printmsg_1(...)) 289 which calls server's defintion of actual function (e.g. printmsg_1(...)). 290 Unpacks single user argument of printmsg_1 to call-by-value format 291 expected by printmsg_1. */ 292 static 293 write_real_program(def) 294 definition *def; 295 { 296 version_list *vp; 297 proc_list *proc; 298 decl_list *l; 299 300 if( !newstyle ) return; /* not needed for old style */ 301 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 302 for (proc = vp->procs; proc != NULL; proc = proc->next) { 303 f_print(fout, "\n"); 304 internal_proctype(proc); 305 f_print(fout, "\n_"); 306 pvname(proc->proc_name, vp->vers_num); 307 if( Cflag ) { 308 f_print(fout, "(" ); 309 /* arg name */ 310 if (proc->arg_num > 1) 311 f_print(fout, proc->args.argname); 312 else 313 ptype(proc->args.decls->decl.prefix, 314 proc->args.decls->decl.type, 0); 315 f_print(fout, " *argp, struct svc_req *%s)\n", 316 RQSTP); 317 } else { 318 f_print(fout, "(argp, %s)\n", RQSTP ); 319 /* arg name */ 320 if (proc->arg_num > 1) 321 f_print(fout, "\t%s *argp;\n", proc->args.argname); 322 else { 323 f_print(fout, "\t"); 324 ptype(proc->args.decls->decl.prefix, 325 proc->args.decls->decl.type, 0); 326 f_print(fout, " *argp;\n"); 327 } 328 f_print(fout, " struct svc_req *%s;\n", RQSTP); 329 } 330 331 f_print(fout, "{\n"); 332 f_print(fout, "\treturn("); 333 if( Cflag ) 334 pvname_svc(proc->proc_name, vp->vers_num); 335 else 336 pvname(proc->proc_name, vp->vers_num); 337 f_print(fout, "("); 338 if (proc->arg_num < 2) { /* single argument */ 339 if (!streq( proc->args.decls->decl.type, "void")) 340 f_print(fout, "*argp, "); /* non-void */ 341 } else { 342 for (l = proc->args.decls; l != NULL; l = l->next) 343 f_print(fout, "argp->%s, ", l->decl.name); 344 } 345 f_print(fout, "%s));\n}\n", RQSTP); 346 } 347 } 348 } 349 350 static 351 write_program(def, storage) 352 definition *def; 353 char *storage; 354 { 355 version_list *vp; 356 proc_list *proc; 357 int filled; 358 359 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 360 f_print(fout, "\n"); 361 if (storage != NULL) { 362 f_print(fout, "%s ", storage); 363 } 364 f_print(fout, "void\n"); 365 pvname(def->def_name, vp->vers_num); 366 367 if (Cflag) { 368 f_print(fout, "(struct svc_req *%s, ", RQSTP); 369 f_print(fout, "register SVCXPRT *%s)\n", TRANSP); 370 } else { 371 f_print(fout, "(%s, %s)\n", RQSTP, TRANSP); 372 f_print(fout, " struct svc_req *%s;\n", RQSTP); 373 f_print(fout, " register SVCXPRT *%s;\n", TRANSP); 374 } 375 376 f_print(fout, "{\n"); 377 378 filled = 0; 379 f_print(fout, "\tunion {\n"); 380 for (proc = vp->procs; proc != NULL; proc = proc->next) { 381 if (proc->arg_num < 2) { /* single argument */ 382 if (streq(proc->args.decls->decl.type, 383 "void")) { 384 continue; 385 } 386 filled = 1; 387 f_print(fout, "\t\t"); 388 ptype(proc->args.decls->decl.prefix, 389 proc->args.decls->decl.type, 0); 390 pvname(proc->proc_name, vp->vers_num); 391 f_print(fout, "_arg;\n"); 392 393 } 394 else { 395 filled = 1; 396 f_print(fout, "\t\t%s", proc->args.argname); 397 f_print(fout, " "); 398 pvname(proc->proc_name, vp->vers_num); 399 f_print(fout, "_arg;\n"); 400 } 401 } 402 if (!filled) { 403 f_print(fout, "\t\tint fill;\n"); 404 } 405 f_print(fout, "\t} %s;\n", ARG); 406 f_print(fout, "\tchar *%s;\n", RESULT); 407 408 if (Cflag) { 409 f_print(fout, "\txdrproc_t xdr_%s, xdr_%s;\n", ARG, RESULT); 410 f_print(fout, 411 "\tchar *(*%s)(char *, struct svc_req *);\n", 412 ROUTINE); 413 } else { 414 f_print(fout, "\tbool_t (*xdr_%s)(), (*xdr_%s)();\n", ARG, RESULT); 415 f_print(fout, "\tchar *(*%s)();\n", ROUTINE); 416 } 417 418 f_print(fout, "\n"); 419 420 if (callerflag) 421 f_print(fout, "\tcaller = transp;\n"); /*EVAS*/ 422 if (timerflag) 423 f_print(fout, "\t_rpcsvcdirty = 1;\n"); 424 f_print(fout, "\tswitch (%s->rq_proc) {\n", RQSTP); 425 if (!nullproc(vp->procs)) { 426 f_print(fout, "\tcase NULLPROC:\n"); 427 f_print(fout, 428 Cflag 429 ? "\t\t(void) svc_sendreply(%s, (xdrproc_t) xdr_void, (char *)NULL);\n" 430 : "\t\t(void) svc_sendreply(%s, xdr_void, (char *)NULL);\n", 431 TRANSP); 432 print_return("\t\t"); 433 f_print(fout, "\n"); 434 } 435 for (proc = vp->procs; proc != NULL; proc = proc->next) { 436 f_print(fout, "\tcase %s:\n", proc->proc_name); 437 if (proc->arg_num < 2) { /* single argument */ 438 p_xdrfunc( ARG, proc->args.decls->decl.type); 439 } else { 440 p_xdrfunc( ARG, proc->args.argname); 441 } 442 p_xdrfunc( RESULT, proc->res_type); 443 if( Cflag ) 444 f_print(fout, 445 "\t\t%s = (char *(*)(char *, struct svc_req *)) ", 446 ROUTINE); 447 else 448 f_print(fout, "\t\t%s = (char *(*)()) ", ROUTINE); 449 450 if (newstyle) { /* new style: calls internal routine */ 451 f_print(fout,"_"); 452 } 453 if( Cflag && !newstyle ) 454 pvname_svc(proc->proc_name, vp->vers_num); 455 else 456 pvname(proc->proc_name, vp->vers_num); 457 f_print(fout, ";\n"); 458 f_print(fout, "\t\tbreak;\n\n"); 459 } 460 f_print(fout, "\tdefault:\n"); 461 printerr("noproc", TRANSP); 462 print_return("\t\t"); 463 f_print(fout, "\t}\n"); 464 465 f_print(fout, "\t(void) memset((char *)&%s, 0, sizeof (%s));\n", ARG, ARG); 466 if (Cflag) 467 printif("getargs", TRANSP, "(caddr_t) &", ARG); 468 else 469 printif("getargs", TRANSP, "&", ARG); 470 printerr("decode", TRANSP); 471 print_return("\t\t"); 472 f_print(fout, "\t}\n"); 473 474 if (Cflag) 475 f_print(fout, "\t%s = (*%s)((char *)&%s, %s);\n", 476 RESULT, ROUTINE, ARG, RQSTP); 477 else 478 f_print(fout, "\t%s = (*%s)(&%s, %s);\n", 479 RESULT, ROUTINE, ARG, RQSTP); 480 f_print(fout, 481 "\tif (%s != NULL && !svc_sendreply(%s, xdr_%s, %s)) {\n", 482 RESULT, TRANSP, RESULT, RESULT); 483 printerr("systemerr", TRANSP); 484 f_print(fout, "\t}\n"); 485 486 if (Cflag) 487 printif("freeargs", TRANSP, "(caddr_t) &", ARG); 488 else 489 printif("freeargs", TRANSP, "&", ARG); 490 (void) sprintf(_errbuf, "unable to free arguments"); 491 print_err_message("\t\t"); 492 f_print(fout, "\t\texit(1);\n"); 493 f_print(fout, "\t}\n"); 494 print_return("\t"); 495 f_print(fout, "}\n"); 496 } 497 } 498 499 static 500 printerr(err, transp) 501 char *err; 502 char *transp; 503 { 504 f_print(fout, "\t\tsvcerr_%s(%s);\n", err, transp); 505 } 506 507 static 508 printif(proc, transp, prefix, arg) 509 char *proc; 510 char *transp; 511 char *prefix; 512 char *arg; 513 { 514 f_print(fout, "\tif (!svc_%s(%s, xdr_%s, %s%s)) {\n", 515 proc, transp, arg, prefix, arg); 516 } 517 518 nullproc(proc) 519 proc_list *proc; 520 { 521 for (; proc != NULL; proc = proc->next) { 522 if (streq(proc->proc_num, "0")) { 523 return (1); 524 } 525 } 526 return (0); 527 } 528 529 static 530 write_inetmost(infile) 531 char *infile; 532 { 533 f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP); 534 f_print(fout, "\tint sock;\n"); 535 f_print(fout, "\tint proto;\n"); 536 f_print(fout, "\tstruct sockaddr_in saddr;\n"); 537 f_print(fout, "\tint asize = sizeof (saddr);\n"); 538 f_print(fout, "\n"); 539 f_print(fout, 540 "\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n"); 541 f_print(fout, "\t\tint ssize = sizeof (int);\n\n"); 542 f_print(fout, "\t\tif (saddr.sin_family != AF_INET)\n"); 543 f_print(fout, "\t\t\texit(1);\n"); 544 f_print(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n"); 545 f_print(fout, "\t\t\t\t(char *)&_rpcfdtype, &ssize) == -1)\n"); 546 f_print(fout, "\t\t\texit(1);\n"); 547 f_print(fout, "\t\tsock = 0;\n"); 548 f_print(fout, "\t\t_rpcpmstart = 1;\n"); 549 f_print(fout, "\t\tproto = 0;\n"); 550 open_log_file(infile, "\t\t"); 551 f_print(fout, "\t} else {\n"); 552 write_rpc_svc_fg(infile, "\t\t"); 553 f_print(fout, "\t\tsock = RPC_ANYSOCK;\n"); 554 print_pmapunset("\t\t"); 555 f_print(fout, "\t}\n"); 556 } 557 558 static 559 print_return(space) 560 char *space; 561 { 562 if (exitnow) 563 f_print(fout, "%sexit(0);\n", space); 564 else { 565 if (timerflag) 566 f_print(fout, "%s_rpcsvcdirty = 0;\n", space); 567 f_print(fout, "%sreturn;\n", space); 568 } 569 } 570 571 static 572 print_pmapunset(space) 573 char *space; 574 { 575 list *l; 576 definition *def; 577 version_list *vp; 578 579 for (l = defined; l != NULL; l = l->next) { 580 def = (definition *) l->val; 581 if (def->def_kind == DEF_PROGRAM) { 582 for (vp = def->def.pr.versions; vp != NULL; 583 vp = vp->next) { 584 f_print(fout, "%s(void) pmap_unset(%s, %s);\n", 585 space, def->def_name, vp->vers_name); 586 } 587 } 588 } 589 } 590 591 static 592 print_err_message(space) 593 char *space; 594 { 595 if (logflag) 596 f_print(fout, "%ssyslog(LOG_ERR, \"%s\");\n", space, _errbuf); 597 else if (inetdflag || pmflag) 598 f_print(fout, "%s_msgout(\"%s\");\n", space, _errbuf); 599 else 600 f_print(fout, "%sfprintf(stderr, \"%s\");\n", space, _errbuf); 601 } 602 603 /* 604 * Write the server auxiliary function ( _msgout, timeout) 605 */ 606 void 607 write_svc_aux( nomain ) 608 int nomain; 609 { 610 if (!logflag) 611 write_msg_out(); 612 if( !nomain ) 613 write_timeout_func(); 614 if (callerflag) /*EVAS*/ 615 write_caller_func(); /*EVAS*/ 616 } 617 618 /* 619 * Write the _msgout function 620 */ 621 622 write_msg_out() 623 { 624 f_print(fout, "\n"); 625 f_print(fout, "static\n"); 626 if( !Cflag ) { 627 f_print(fout, "void _msgout(msg)\n"); 628 f_print(fout, "\tchar *msg;\n"); 629 } else { 630 f_print(fout, "void _msgout(char* msg)\n"); 631 } 632 f_print(fout, "{\n"); 633 f_print(fout, "#ifdef RPC_SVC_FG\n"); 634 if (inetdflag || pmflag) 635 f_print(fout, "\tif (_rpcpmstart)\n"); 636 f_print(fout, "\t\tsyslog(LOG_ERR, msg);\n"); 637 f_print(fout, "\telse\n"); 638 f_print(fout, "\t\t(void) fprintf(stderr, \"%%s\\n\", msg);\n"); 639 f_print(fout, "#else\n"); 640 f_print(fout, "\tsyslog(LOG_ERR, msg);\n"); 641 f_print(fout, "#endif\n"); 642 f_print(fout, "}\n"); 643 } 644 645 /* 646 * Write the timeout function 647 */ 648 static 649 write_timeout_func() 650 { 651 if (!timerflag) 652 return; 653 f_print(fout, "\n"); 654 f_print(fout, "static void\n"); 655 f_print(fout, "closedown()\n"); 656 f_print(fout, "{\n"); 657 f_print(fout, "\tif (_rpcsvcdirty == 0) {\n"); 658 f_print(fout, "\t\textern fd_set svc_fdset;\n"); 659 f_print(fout, "\t\tstatic int size;\n"); 660 f_print(fout, "\t\tint i, openfd;\n"); 661 if (tirpcflag && pmflag) { 662 f_print(fout, "\t\tstruct t_info tinfo;\n\n"); 663 f_print(fout, "\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n"); 664 } else { 665 f_print(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n"); 666 } 667 f_print(fout, "\t\t\texit(0);\n"); 668 f_print(fout, "\t\tif (size == 0) {\n"); 669 if( tirpcflag ) { 670 f_print(fout, "\t\t\tstruct rlimit rl;\n\n"); 671 f_print(fout, "\t\t\trl.rlim_max = 0;\n"); 672 f_print(fout, "\t\t\tgetrlimit(RLIMIT_NOFILE, &rl);\n"); 673 f_print(fout, "\t\t\tif ((size = rl.rlim_max) == 0)\n"); 674 f_print(fout, "\t\t\t\treturn;\n"); 675 } else { 676 f_print(fout, "\t\t\tsize = getdtablesize();\n"); 677 } 678 f_print(fout, "\t\t}\n"); 679 f_print(fout, "\t\tfor (i = 0, openfd = 0; i < size && openfd < 2; i++)\n"); 680 f_print(fout, "\t\t\tif (FD_ISSET(i, &svc_fdset))\n"); 681 f_print(fout, "\t\t\t\topenfd++;\n"); 682 f_print(fout, "\t\tif (openfd <= (_rpcpmstart?0:1))\n"); 683 f_print(fout, "\t\t\texit(0);\n"); 684 f_print(fout, "\t}\n"); 685 f_print(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 686 f_print(fout, "}\n"); 687 } 688 689 static 690 write_caller_func() /*EVAS*/ 691 { 692 #define P(s) f_print(fout, s); 693 694 P("\n"); 695 P("char *svc_caller()\n"); 696 P("{\n"); 697 P(" struct sockaddr_in actual;\n"); 698 P(" struct hostent *hp;\n"); 699 P(" static struct in_addr prev;\n"); 700 P(" static char cname[128];\n\n"); 701 702 P(" actual = *svc_getcaller(caller);\n\n"); 703 704 P(" if (memcmp((char *)&actual.sin_addr, (char *)&prev,\n"); 705 P(" sizeof(struct in_addr)) == 0)\n"); 706 P(" return (cname);\n\n"); 707 708 P(" prev = actual.sin_addr;\n\n"); 709 710 P(" hp = gethostbyaddr((char *) &actual.sin_addr, sizeof(actual.sin_addr), AF_INET);\n"); 711 P(" if (hp == NULL) { /* dummy one up */\n"); 712 P(" extern char *inet_ntoa();\n"); 713 P(" strcpy(cname, inet_ntoa(actual.sin_addr));\n"); 714 P(" } else {\n"); 715 P(" strcpy(cname, hp->h_name);\n"); 716 P(" }\n\n"); 717 718 P(" return (cname);\n"); 719 P("}\n"); 720 721 #undef P 722 } 723 724 /* 725 * Write the most of port monitor support 726 */ 727 static 728 write_pm_most(infile, netflag) 729 char *infile; 730 int netflag; 731 { 732 list *l; 733 definition *def; 734 version_list *vp; 735 736 f_print(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n"); 737 f_print(fout, "\t\t(!strcmp(mname, \"sockmod\") ||"); 738 f_print(fout, " !strcmp(mname, \"timod\"))) {\n"); 739 f_print(fout, "\t\tchar *netid;\n"); 740 if (!netflag) { /* Not included by -n option */ 741 f_print(fout, "\t\tstruct netconfig *nconf = NULL;\n"); 742 f_print(fout, "\t\tSVCXPRT *%s;\n", TRANSP); 743 } 744 if( timerflag ) 745 f_print(fout, "\t\tint pmclose;\n"); 746 /* not necessary, defined in /usr/include/stdlib */ 747 /* f_print(fout, "\t\textern char *getenv();\n");*/ 748 f_print(fout, "\n"); 749 f_print(fout, "\t\t_rpcpmstart = 1;\n"); 750 if (logflag) 751 open_log_file(infile, "\t\t"); 752 f_print(fout, "\t\tif ((netid = getenv(\"NLSPROVIDER\")) == NULL) {\n"); 753 sprintf(_errbuf, "cannot get transport name"); 754 print_err_message("\t\t\t"); 755 f_print(fout, "\t\t} else if ((nconf = getnetconfigent(netid)) == NULL) {\n"); 756 sprintf(_errbuf, "cannot get transport info"); 757 print_err_message("\t\t\t"); 758 f_print(fout, "\t\t}\n"); 759 /* 760 * A kludgy support for inetd services. Inetd only works with 761 * sockmod, and RPC works only with timod, hence all this jugglery 762 */ 763 f_print(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n"); 764 f_print(fout, "\t\t\tif (ioctl(0, I_POP, 0) || ioctl(0, I_PUSH, \"timod\")) {\n"); 765 sprintf(_errbuf, "could not get the right module"); 766 print_err_message("\t\t\t\t"); 767 f_print(fout, "\t\t\t\texit(1);\n"); 768 f_print(fout, "\t\t\t}\n"); 769 f_print(fout, "\t\t}\n"); 770 if( timerflag ) 771 f_print(fout, "\t\tpmclose = (t_getstate(0) != T_DATAXFER);\n"); 772 f_print(fout, "\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) == NULL) {\n", 773 TRANSP); 774 sprintf(_errbuf, "cannot create server handle"); 775 print_err_message("\t\t\t"); 776 f_print(fout, "\t\t\texit(1);\n"); 777 f_print(fout, "\t\t}\n"); 778 f_print(fout, "\t\tif (nconf)\n"); 779 f_print(fout, "\t\t\tfreenetconfigent(nconf);\n"); 780 for (l = defined; l != NULL; l = l->next) { 781 def = (definition *) l->val; 782 if (def->def_kind != DEF_PROGRAM) { 783 continue; 784 } 785 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 786 f_print(fout, 787 "\t\tif (!svc_reg(%s, %s, %s, ", 788 TRANSP, def->def_name, vp->vers_name); 789 pvname(def->def_name, vp->vers_num); 790 f_print(fout, ", 0)) {\n"); 791 (void) sprintf(_errbuf, "unable to register (%s, %s).", 792 def->def_name, vp->vers_name); 793 print_err_message("\t\t\t"); 794 f_print(fout, "\t\t\texit(1);\n"); 795 f_print(fout, "\t\t}\n"); 796 } 797 } 798 if (timerflag) { 799 f_print(fout, "\t\tif (pmclose) {\n"); 800 f_print(fout, "\t\t\t(void) signal(SIGALRM, %s closedown);\n", 801 Cflag? "(SIG_PF)" : "(void(*)())" ); 802 f_print(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 803 f_print(fout, "\t\t}\n"); 804 } 805 f_print(fout, "\t\tsvc_run();\n"); 806 f_print(fout, "\t\texit(1);\n"); 807 f_print(fout, "\t\t/* NOTREACHED */\n"); 808 f_print(fout, "\t}\n"); 809 } 810 811 /* 812 * Support for backgrounding the server if self started. 813 */ 814 static 815 write_rpc_svc_fg(infile, sp) 816 char *infile; 817 char *sp; 818 { 819 f_print(fout, "#ifndef RPC_SVC_FG\n"); 820 f_print(fout, "%sint size;\n", sp); 821 if( tirpcflag ) 822 f_print(fout, "%sstruct rlimit rl;\n", sp); 823 if (inetdflag) 824 f_print(fout, "%sint pid, i;\n\n", sp); 825 f_print(fout, "%spid = fork();\n", sp); 826 f_print(fout, "%sif (pid < 0) {\n", sp); 827 f_print(fout, "%s\tperror(\"cannot fork\");\n", sp); 828 f_print(fout, "%s\texit(1);\n", sp); 829 f_print(fout, "%s}\n", sp); 830 f_print(fout, "%sif (pid)\n", sp); 831 f_print(fout, "%s\texit(0);\n", sp); 832 /* get number of file descriptors */ 833 if( tirpcflag ) { 834 f_print(fout, "%srl.rlim_max = 0;\n", sp); 835 f_print(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp); 836 f_print(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp); 837 f_print(fout, "%s\texit(1);\n", sp); 838 } else { 839 f_print(fout, "%ssize = getdtablesize();\n", sp); 840 } 841 842 f_print(fout, "%sfor (i = 0; i < size; i++)\n", sp); 843 f_print(fout, "%s\t(void) close(i);\n", sp); 844 /* Redirect stderr and stdout to console */ 845 f_print(fout, "%si = open(\"/dev/console\", 2);\n", sp); 846 f_print(fout, "%s(void) dup2(i, 1);\n", sp); 847 f_print(fout, "%s(void) dup2(i, 2);\n", sp); 848 /* This removes control of the controlling terminal */ 849 if( tirpcflag ) 850 f_print(fout, "%ssetsid();\n", sp); 851 else { 852 f_print(fout, "%si = open(\"/dev/tty\", 2);\n", sp); 853 f_print(fout, "%sif (i >= 0) {\n", sp); 854 f_print(fout, "%s\t(void) ioctl(i, TIOCNOTTY, (char *)NULL);\n", sp);; 855 f_print(fout, "%s\t(void) close(i);\n", sp); 856 f_print(fout, "%s}\n", sp); 857 } 858 if (!logflag) 859 open_log_file(infile, sp); 860 f_print(fout, "#endif\n"); 861 if (logflag) 862 open_log_file(infile, sp); 863 } 864 865 static 866 open_log_file(infile, sp) 867 char *infile; 868 char *sp; 869 { 870 char *s; 871 872 s = strrchr(infile, '.'); 873 if (s) 874 *s = '\0'; 875 f_print(fout,"%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, infile); 876 if (s) 877 *s = '.'; 878 } 879 880 881 882 883 /* 884 * write a registration for the given transport for Inetd 885 */ 886 void 887 write_inetd_register(transp) 888 char *transp; 889 { 890 list *l; 891 definition *def; 892 version_list *vp; 893 char *sp; 894 int isudp; 895 char tmpbuf[32]; 896 897 if (inetdflag) 898 sp = "\t"; 899 else 900 sp = ""; 901 if (streq(transp, "udp")) 902 isudp = 1; 903 else 904 isudp = 0; 905 f_print(fout, "\n"); 906 if (inetdflag) { 907 f_print(fout, "\tif ((_rpcfdtype == 0) || (_rpcfdtype == %s)) {\n", 908 isudp ? "SOCK_DGRAM" : "SOCK_STREAM"); 909 } 910 if (inetdflag && streq(transp, "tcp")) { 911 f_print(fout, "%s\tif (_rpcpmstart)\n", sp); 912 913 f_print(fout, "%s\t\t%s = svc%s_create(%s", 914 sp, TRANSP, "fd", inetdflag? "sock": "RPC_ANYSOCK"); 915 if (!isudp) 916 f_print(fout, ", 0, 0"); 917 f_print(fout, ");\n"); 918 919 f_print(fout, "%s\telse\n", sp); 920 921 f_print(fout, "%s\t\t%s = svc%s_create(%s", 922 sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK"); 923 if (!isudp) 924 f_print(fout, ", 0, 0"); 925 f_print(fout, ");\n"); 926 927 } else { 928 f_print(fout, "%s\t%s = svc%s_create(%s", 929 sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK"); 930 if (!isudp) 931 f_print(fout, ", 0, 0"); 932 f_print(fout, ");\n"); 933 } 934 f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP); 935 (void) sprintf(_errbuf, "cannot create %s service.", transp); 936 (void) sprintf(tmpbuf, "%s\t\t", sp); 937 print_err_message(tmpbuf); 938 f_print(fout, "%s\t\texit(1);\n", sp); 939 f_print(fout, "%s\t}\n", sp); 940 941 if (inetdflag) { 942 f_print(fout, "%s\tif (!_rpcpmstart)\n\t", sp); 943 f_print(fout, "%s\tproto = IPPROTO_%s;\n", 944 sp, isudp ? "UDP": "TCP"); 945 } 946 for (l = defined; l != NULL; l = l->next) { 947 def = (definition *) l->val; 948 if (def->def_kind != DEF_PROGRAM) { 949 continue; 950 } 951 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 952 f_print(fout, "%s\tif (!svc_register(%s, %s, %s, ", 953 sp, TRANSP, def->def_name, vp->vers_name); 954 pvname(def->def_name, vp->vers_num); 955 if (inetdflag) 956 f_print(fout, ", proto)) {\n"); 957 else 958 f_print(fout, ", IPPROTO_%s)) {\n", 959 isudp ? "UDP": "TCP"); 960 (void) sprintf(_errbuf, "unable to register (%s, %s, %s).", 961 def->def_name, vp->vers_name, transp); 962 print_err_message(tmpbuf); 963 f_print(fout, "%s\t\texit(1);\n", sp); 964 f_print(fout, "%s\t}\n", sp); 965 } 966 } 967 if (inetdflag) 968 f_print(fout, "\t}\n"); 969 } 970
Indexes created Wed Sep 24 15:09:51 GMT 2025