rpc_svcout.c revision 1.7
1 /* $NetBSD: rpc_svcout.c,v 1.7 1995/06/24 14:59:59 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 pvname_svc(proc->proc_name, vp->vers_num); 334 f_print(fout, "("); 335 if (proc->arg_num < 2) { /* single argument */ 336 if (!streq( proc->args.decls->decl.type, "void")) 337 f_print(fout, "*argp, "); /* non-void */ 338 } else { 339 for (l = proc->args.decls; l != NULL; l = l->next) 340 f_print(fout, "argp->%s, ", l->decl.name); 341 } 342 f_print(fout, "%s));\n}\n", RQSTP); 343 } 344 } 345 } 346 347 static 348 write_program(def, storage) 349 definition *def; 350 char *storage; 351 { 352 version_list *vp; 353 proc_list *proc; 354 int filled; 355 356 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 357 f_print(fout, "\n"); 358 if (storage != NULL) { 359 f_print(fout, "%s ", storage); 360 } 361 f_print(fout, "void\n"); 362 pvname(def->def_name, vp->vers_num); 363 364 if (Cflag) { 365 f_print(fout, "(struct svc_req *%s, ", RQSTP); 366 f_print(fout, "register SVCXPRT *%s)\n", TRANSP); 367 } else { 368 f_print(fout, "(%s, %s)\n", RQSTP, TRANSP); 369 f_print(fout, " struct svc_req *%s;\n", RQSTP); 370 f_print(fout, " register SVCXPRT *%s;\n", TRANSP); 371 } 372 373 f_print(fout, "{\n"); 374 375 filled = 0; 376 f_print(fout, "\tunion {\n"); 377 for (proc = vp->procs; proc != NULL; proc = proc->next) { 378 if (proc->arg_num < 2) { /* single argument */ 379 if (streq(proc->args.decls->decl.type, 380 "void")) { 381 continue; 382 } 383 filled = 1; 384 f_print(fout, "\t\t"); 385 ptype(proc->args.decls->decl.prefix, 386 proc->args.decls->decl.type, 0); 387 pvname(proc->proc_name, vp->vers_num); 388 f_print(fout, "_arg;\n"); 389 390 } 391 else { 392 filled = 1; 393 f_print(fout, "\t\t%s", proc->args.argname); 394 f_print(fout, " "); 395 pvname(proc->proc_name, vp->vers_num); 396 f_print(fout, "_arg;\n"); 397 } 398 } 399 if (!filled) { 400 f_print(fout, "\t\tint fill;\n"); 401 } 402 f_print(fout, "\t} %s;\n", ARG); 403 f_print(fout, "\tchar *%s;\n", RESULT); 404 405 if (Cflag) { 406 f_print(fout, "\txdrproc_t xdr_%s, xdr_%s;\n", ARG, RESULT); 407 f_print(fout, 408 "\tchar *(*%s)(char *, struct svc_req *);\n", 409 ROUTINE); 410 } else { 411 f_print(fout, "\tbool_t (*xdr_%s)(), (*xdr_%s)();\n", ARG, RESULT); 412 f_print(fout, "\tchar *(*%s)();\n", ROUTINE); 413 } 414 415 f_print(fout, "\n"); 416 417 if (callerflag) 418 f_print(fout, "\tcaller = transp;\n"); /*EVAS*/ 419 if (timerflag) 420 f_print(fout, "\t_rpcsvcdirty = 1;\n"); 421 f_print(fout, "\tswitch (%s->rq_proc) {\n", RQSTP); 422 if (!nullproc(vp->procs)) { 423 f_print(fout, "\tcase NULLPROC:\n"); 424 f_print(fout, 425 Cflag 426 ? "\t\t(void) svc_sendreply(%s, (xdrproc_t) xdr_void, (char *)NULL);\n" 427 : "\t\t(void) svc_sendreply(%s, xdr_void, (char *)NULL);\n", 428 TRANSP); 429 print_return("\t\t"); 430 f_print(fout, "\n"); 431 } 432 for (proc = vp->procs; proc != NULL; proc = proc->next) { 433 f_print(fout, "\tcase %s:\n", proc->proc_name); 434 if (proc->arg_num < 2) { /* single argument */ 435 p_xdrfunc( ARG, proc->args.decls->decl.type); 436 } else { 437 p_xdrfunc( ARG, proc->args.argname); 438 } 439 p_xdrfunc( RESULT, proc->res_type); 440 if( Cflag ) 441 f_print(fout, 442 "\t\t%s = (char *(*)(char *, struct svc_req *)) ", 443 ROUTINE); 444 else 445 f_print(fout, "\t\t%s = (char *(*)()) ", ROUTINE); 446 447 if (newstyle) { /* new style: calls internal routine */ 448 f_print(fout,"_"); 449 } 450 if (!newstyle ) 451 pvname_svc(proc->proc_name, vp->vers_num); 452 else 453 pvname(proc->proc_name, vp->vers_num); 454 f_print(fout, ";\n"); 455 f_print(fout, "\t\tbreak;\n\n"); 456 } 457 f_print(fout, "\tdefault:\n"); 458 printerr("noproc", TRANSP); 459 print_return("\t\t"); 460 f_print(fout, "\t}\n"); 461 462 f_print(fout, "\t(void) memset((char *)&%s, 0, sizeof (%s));\n", ARG, ARG); 463 printif("getargs", TRANSP, "(caddr_t) &", ARG); 464 printerr("decode", TRANSP); 465 print_return("\t\t"); 466 f_print(fout, "\t}\n"); 467 468 if (Cflag) 469 f_print(fout, "\t%s = (*%s)((char *)&%s, %s);\n", 470 RESULT, ROUTINE, ARG, RQSTP); 471 else 472 f_print(fout, "\t%s = (*%s)(&%s, %s);\n", 473 RESULT, ROUTINE, ARG, RQSTP); 474 f_print(fout, 475 "\tif (%s != NULL && !svc_sendreply(%s, xdr_%s, %s)) {\n", 476 RESULT, TRANSP, RESULT, RESULT); 477 printerr("systemerr", TRANSP); 478 f_print(fout, "\t}\n"); 479 480 printif("freeargs", TRANSP, "(caddr_t) &", ARG); 481 (void) sprintf(_errbuf, "unable to free arguments"); 482 print_err_message("\t\t"); 483 f_print(fout, "\t\texit(1);\n"); 484 f_print(fout, "\t}\n"); 485 print_return("\t"); 486 f_print(fout, "}\n"); 487 } 488 } 489 490 static 491 printerr(err, transp) 492 char *err; 493 char *transp; 494 { 495 f_print(fout, "\t\tsvcerr_%s(%s);\n", err, transp); 496 } 497 498 static 499 printif(proc, transp, prefix, arg) 500 char *proc; 501 char *transp; 502 char *prefix; 503 char *arg; 504 { 505 f_print(fout, "\tif (!svc_%s(%s, xdr_%s, %s%s)) {\n", 506 proc, transp, arg, prefix, arg); 507 } 508 509 nullproc(proc) 510 proc_list *proc; 511 { 512 for (; proc != NULL; proc = proc->next) { 513 if (streq(proc->proc_num, "0")) { 514 return (1); 515 } 516 } 517 return (0); 518 } 519 520 static 521 write_inetmost(infile) 522 char *infile; 523 { 524 f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP); 525 f_print(fout, "\tint sock;\n"); 526 f_print(fout, "\tint proto;\n"); 527 f_print(fout, "\tstruct sockaddr_in saddr;\n"); 528 f_print(fout, "\tint asize = sizeof (saddr);\n"); 529 f_print(fout, "\n"); 530 f_print(fout, 531 "\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n"); 532 f_print(fout, "\t\tint ssize = sizeof (int);\n\n"); 533 f_print(fout, "\t\tif (saddr.sin_family != AF_INET)\n"); 534 f_print(fout, "\t\t\texit(1);\n"); 535 f_print(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n"); 536 f_print(fout, "\t\t\t\t(char *)&_rpcfdtype, &ssize) == -1)\n"); 537 f_print(fout, "\t\t\texit(1);\n"); 538 f_print(fout, "\t\tsock = 0;\n"); 539 f_print(fout, "\t\t_rpcpmstart = 1;\n"); 540 f_print(fout, "\t\tproto = 0;\n"); 541 open_log_file(infile, "\t\t"); 542 f_print(fout, "\t} else {\n"); 543 write_rpc_svc_fg(infile, "\t\t"); 544 f_print(fout, "\t\tsock = RPC_ANYSOCK;\n"); 545 print_pmapunset("\t\t"); 546 f_print(fout, "\t}\n"); 547 } 548 549 static 550 print_return(space) 551 char *space; 552 { 553 if (exitnow) 554 f_print(fout, "%sexit(0);\n", space); 555 else { 556 if (timerflag) 557 f_print(fout, "%s_rpcsvcdirty = 0;\n", space); 558 f_print(fout, "%sreturn;\n", space); 559 } 560 } 561 562 static 563 print_pmapunset(space) 564 char *space; 565 { 566 list *l; 567 definition *def; 568 version_list *vp; 569 570 for (l = defined; l != NULL; l = l->next) { 571 def = (definition *) l->val; 572 if (def->def_kind == DEF_PROGRAM) { 573 for (vp = def->def.pr.versions; vp != NULL; 574 vp = vp->next) { 575 f_print(fout, "%s(void) pmap_unset(%s, %s);\n", 576 space, def->def_name, vp->vers_name); 577 } 578 } 579 } 580 } 581 582 static 583 print_err_message(space) 584 char *space; 585 { 586 if (logflag) 587 f_print(fout, "%ssyslog(LOG_ERR, \"%s\");\n", space, _errbuf); 588 else if (inetdflag || pmflag) 589 f_print(fout, "%s_msgout(\"%s\");\n", space, _errbuf); 590 else 591 f_print(fout, "%sfprintf(stderr, \"%s\");\n", space, _errbuf); 592 } 593 594 /* 595 * Write the server auxiliary function ( _msgout, timeout) 596 */ 597 void 598 write_svc_aux( nomain ) 599 int nomain; 600 { 601 if (!logflag) 602 write_msg_out(); 603 if( !nomain ) 604 write_timeout_func(); 605 if (callerflag) /*EVAS*/ 606 write_caller_func(); /*EVAS*/ 607 } 608 609 /* 610 * Write the _msgout function 611 */ 612 613 write_msg_out() 614 { 615 f_print(fout, "\n"); 616 f_print(fout, "static\n"); 617 if( !Cflag ) { 618 f_print(fout, "void _msgout(msg)\n"); 619 f_print(fout, "\tchar *msg;\n"); 620 } else { 621 f_print(fout, "void _msgout(char* msg)\n"); 622 } 623 f_print(fout, "{\n"); 624 f_print(fout, "#ifdef RPC_SVC_FG\n"); 625 if (inetdflag || pmflag) 626 f_print(fout, "\tif (_rpcpmstart)\n"); 627 f_print(fout, "\t\tsyslog(LOG_ERR, msg);\n"); 628 f_print(fout, "\telse\n"); 629 f_print(fout, "\t\t(void) fprintf(stderr, \"%%s\\n\", msg);\n"); 630 f_print(fout, "#else\n"); 631 f_print(fout, "\tsyslog(LOG_ERR, msg);\n"); 632 f_print(fout, "#endif\n"); 633 f_print(fout, "}\n"); 634 } 635 636 /* 637 * Write the timeout function 638 */ 639 static 640 write_timeout_func() 641 { 642 if (!timerflag) 643 return; 644 f_print(fout, "\n"); 645 f_print(fout, "static void\n"); 646 f_print(fout, "closedown()\n"); 647 f_print(fout, "{\n"); 648 f_print(fout, "\tif (_rpcsvcdirty == 0) {\n"); 649 f_print(fout, "\t\textern fd_set svc_fdset;\n"); 650 f_print(fout, "\t\tstatic int size;\n"); 651 f_print(fout, "\t\tint i, openfd;\n"); 652 if (tirpcflag && pmflag) { 653 f_print(fout, "\t\tstruct t_info tinfo;\n\n"); 654 f_print(fout, "\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n"); 655 } else { 656 f_print(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n"); 657 } 658 f_print(fout, "\t\t\texit(0);\n"); 659 f_print(fout, "\t\tif (size == 0) {\n"); 660 if( tirpcflag ) { 661 f_print(fout, "\t\t\tstruct rlimit rl;\n\n"); 662 f_print(fout, "\t\t\trl.rlim_max = 0;\n"); 663 f_print(fout, "\t\t\tgetrlimit(RLIMIT_NOFILE, &rl);\n"); 664 f_print(fout, "\t\t\tif ((size = rl.rlim_max) == 0)\n"); 665 f_print(fout, "\t\t\t\treturn;\n"); 666 } else { 667 f_print(fout, "\t\t\tsize = getdtablesize();\n"); 668 } 669 f_print(fout, "\t\t}\n"); 670 f_print(fout, "\t\tfor (i = 0, openfd = 0; i < size && openfd < 2; i++)\n"); 671 f_print(fout, "\t\t\tif (FD_ISSET(i, &svc_fdset))\n"); 672 f_print(fout, "\t\t\t\topenfd++;\n"); 673 f_print(fout, "\t\tif (openfd <= (_rpcpmstart?0:1))\n"); 674 f_print(fout, "\t\t\texit(0);\n"); 675 f_print(fout, "\t}\n"); 676 f_print(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 677 f_print(fout, "}\n"); 678 } 679 680 static 681 write_caller_func() /*EVAS*/ 682 { 683 #define P(s) f_print(fout, s); 684 685 P("\n"); 686 P("char *svc_caller()\n"); 687 P("{\n"); 688 P(" struct sockaddr_in actual;\n"); 689 P(" struct hostent *hp;\n"); 690 P(" static struct in_addr prev;\n"); 691 P(" static char cname[128];\n\n"); 692 693 P(" actual = *svc_getcaller(caller);\n\n"); 694 695 P(" if (memcmp((char *)&actual.sin_addr, (char *)&prev,\n"); 696 P(" sizeof(struct in_addr)) == 0)\n"); 697 P(" return (cname);\n\n"); 698 699 P(" prev = actual.sin_addr;\n\n"); 700 701 P(" hp = gethostbyaddr((char *) &actual.sin_addr, sizeof(actual.sin_addr), AF_INET);\n"); 702 P(" if (hp == NULL) { /* dummy one up */\n"); 703 P(" extern char *inet_ntoa();\n"); 704 P(" strcpy(cname, inet_ntoa(actual.sin_addr));\n"); 705 P(" } else {\n"); 706 P(" strcpy(cname, hp->h_name);\n"); 707 P(" }\n\n"); 708 709 P(" return (cname);\n"); 710 P("}\n"); 711 712 #undef P 713 } 714 715 /* 716 * Write the most of port monitor support 717 */ 718 static 719 write_pm_most(infile, netflag) 720 char *infile; 721 int netflag; 722 { 723 list *l; 724 definition *def; 725 version_list *vp; 726 727 f_print(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n"); 728 f_print(fout, "\t\t(!strcmp(mname, \"sockmod\") ||"); 729 f_print(fout, " !strcmp(mname, \"timod\"))) {\n"); 730 f_print(fout, "\t\tchar *netid;\n"); 731 if (!netflag) { /* Not included by -n option */ 732 f_print(fout, "\t\tstruct netconfig *nconf = NULL;\n"); 733 f_print(fout, "\t\tSVCXPRT *%s;\n", TRANSP); 734 } 735 if( timerflag ) 736 f_print(fout, "\t\tint pmclose;\n"); 737 /* not necessary, defined in /usr/include/stdlib */ 738 /* f_print(fout, "\t\textern char *getenv();\n");*/ 739 f_print(fout, "\n"); 740 f_print(fout, "\t\t_rpcpmstart = 1;\n"); 741 if (logflag) 742 open_log_file(infile, "\t\t"); 743 f_print(fout, "\t\tif ((netid = getenv(\"NLSPROVIDER\")) == NULL) {\n"); 744 sprintf(_errbuf, "cannot get transport name"); 745 print_err_message("\t\t\t"); 746 f_print(fout, "\t\t} else if ((nconf = getnetconfigent(netid)) == NULL) {\n"); 747 sprintf(_errbuf, "cannot get transport info"); 748 print_err_message("\t\t\t"); 749 f_print(fout, "\t\t}\n"); 750 /* 751 * A kludgy support for inetd services. Inetd only works with 752 * sockmod, and RPC works only with timod, hence all this jugglery 753 */ 754 f_print(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n"); 755 f_print(fout, "\t\t\tif (ioctl(0, I_POP, 0) || ioctl(0, I_PUSH, \"timod\")) {\n"); 756 sprintf(_errbuf, "could not get the right module"); 757 print_err_message("\t\t\t\t"); 758 f_print(fout, "\t\t\t\texit(1);\n"); 759 f_print(fout, "\t\t\t}\n"); 760 f_print(fout, "\t\t}\n"); 761 if( timerflag ) 762 f_print(fout, "\t\tpmclose = (t_getstate(0) != T_DATAXFER);\n"); 763 f_print(fout, "\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) == NULL) {\n", 764 TRANSP); 765 sprintf(_errbuf, "cannot create server handle"); 766 print_err_message("\t\t\t"); 767 f_print(fout, "\t\t\texit(1);\n"); 768 f_print(fout, "\t\t}\n"); 769 f_print(fout, "\t\tif (nconf)\n"); 770 f_print(fout, "\t\t\tfreenetconfigent(nconf);\n"); 771 for (l = defined; l != NULL; l = l->next) { 772 def = (definition *) l->val; 773 if (def->def_kind != DEF_PROGRAM) { 774 continue; 775 } 776 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 777 f_print(fout, 778 "\t\tif (!svc_reg(%s, %s, %s, ", 779 TRANSP, def->def_name, vp->vers_name); 780 pvname(def->def_name, vp->vers_num); 781 f_print(fout, ", 0)) {\n"); 782 (void) sprintf(_errbuf, "unable to register (%s, %s).", 783 def->def_name, vp->vers_name); 784 print_err_message("\t\t\t"); 785 f_print(fout, "\t\t\texit(1);\n"); 786 f_print(fout, "\t\t}\n"); 787 } 788 } 789 if (timerflag) { 790 f_print(fout, "\t\tif (pmclose) {\n"); 791 f_print(fout, "\t\t\t(void) signal(SIGALRM, %s closedown);\n", 792 Cflag? "(SIG_PF)" : "(void(*)())" ); 793 f_print(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 794 f_print(fout, "\t\t}\n"); 795 } 796 f_print(fout, "\t\tsvc_run();\n"); 797 f_print(fout, "\t\texit(1);\n"); 798 f_print(fout, "\t\t/* NOTREACHED */\n"); 799 f_print(fout, "\t}\n"); 800 } 801 802 /* 803 * Support for backgrounding the server if self started. 804 */ 805 static 806 write_rpc_svc_fg(infile, sp) 807 char *infile; 808 char *sp; 809 { 810 f_print(fout, "#ifndef RPC_SVC_FG\n"); 811 f_print(fout, "%sint size;\n", sp); 812 if( tirpcflag ) 813 f_print(fout, "%sstruct rlimit rl;\n", sp); 814 if (inetdflag) 815 f_print(fout, "%sint pid, i;\n\n", sp); 816 f_print(fout, "%spid = fork();\n", sp); 817 f_print(fout, "%sif (pid < 0) {\n", sp); 818 f_print(fout, "%s\tperror(\"cannot fork\");\n", sp); 819 f_print(fout, "%s\texit(1);\n", sp); 820 f_print(fout, "%s}\n", sp); 821 f_print(fout, "%sif (pid)\n", sp); 822 f_print(fout, "%s\texit(0);\n", sp); 823 /* get number of file descriptors */ 824 if( tirpcflag ) { 825 f_print(fout, "%srl.rlim_max = 0;\n", sp); 826 f_print(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp); 827 f_print(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp); 828 f_print(fout, "%s\texit(1);\n", sp); 829 } else { 830 f_print(fout, "%ssize = getdtablesize();\n", sp); 831 } 832 833 f_print(fout, "%sfor (i = 0; i < size; i++)\n", sp); 834 f_print(fout, "%s\t(void) close(i);\n", sp); 835 /* Redirect stderr and stdout to console */ 836 f_print(fout, "%si = open(\"/dev/console\", 2);\n", sp); 837 f_print(fout, "%s(void) dup2(i, 1);\n", sp); 838 f_print(fout, "%s(void) dup2(i, 2);\n", sp); 839 /* This removes control of the controlling terminal */ 840 if( tirpcflag ) 841 f_print(fout, "%ssetsid();\n", sp); 842 else { 843 f_print(fout, "%si = open(\"/dev/tty\", 2);\n", sp); 844 f_print(fout, "%sif (i >= 0) {\n", sp); 845 f_print(fout, "%s\t(void) ioctl(i, TIOCNOTTY, (char *)NULL);\n", sp);; 846 f_print(fout, "%s\t(void) close(i);\n", sp); 847 f_print(fout, "%s}\n", sp); 848 } 849 if (!logflag) 850 open_log_file(infile, sp); 851 f_print(fout, "#endif\n"); 852 if (logflag) 853 open_log_file(infile, sp); 854 } 855 856 static 857 open_log_file(infile, sp) 858 char *infile; 859 char *sp; 860 { 861 char *s; 862 863 s = strrchr(infile, '.'); 864 if (s) 865 *s = '\0'; 866 f_print(fout,"%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, infile); 867 if (s) 868 *s = '.'; 869 } 870 871 872 873 874 /* 875 * write a registration for the given transport for Inetd 876 */ 877 void 878 write_inetd_register(transp) 879 char *transp; 880 { 881 list *l; 882 definition *def; 883 version_list *vp; 884 char *sp; 885 int isudp; 886 char tmpbuf[32]; 887 888 if (inetdflag) 889 sp = "\t"; 890 else 891 sp = ""; 892 if (streq(transp, "udp")) 893 isudp = 1; 894 else 895 isudp = 0; 896 f_print(fout, "\n"); 897 if (inetdflag) { 898 f_print(fout, "\tif ((_rpcfdtype == 0) || (_rpcfdtype == %s)) {\n", 899 isudp ? "SOCK_DGRAM" : "SOCK_STREAM"); 900 } 901 if (inetdflag && streq(transp, "tcp")) { 902 f_print(fout, "%s\tif (_rpcpmstart)\n", sp); 903 904 f_print(fout, "%s\t\t%s = svc%s_create(%s", 905 sp, TRANSP, "fd", inetdflag? "sock": "RPC_ANYSOCK"); 906 if (!isudp) 907 f_print(fout, ", 0, 0"); 908 f_print(fout, ");\n"); 909 910 f_print(fout, "%s\telse\n", sp); 911 912 f_print(fout, "%s\t\t%s = svc%s_create(%s", 913 sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK"); 914 if (!isudp) 915 f_print(fout, ", 0, 0"); 916 f_print(fout, ");\n"); 917 918 } else { 919 f_print(fout, "%s\t%s = svc%s_create(%s", 920 sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK"); 921 if (!isudp) 922 f_print(fout, ", 0, 0"); 923 f_print(fout, ");\n"); 924 } 925 f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP); 926 (void) sprintf(_errbuf, "cannot create %s service.", transp); 927 (void) sprintf(tmpbuf, "%s\t\t", sp); 928 print_err_message(tmpbuf); 929 f_print(fout, "%s\t\texit(1);\n", sp); 930 f_print(fout, "%s\t}\n", sp); 931 932 if (inetdflag) { 933 f_print(fout, "%s\tif (!_rpcpmstart)\n\t", sp); 934 f_print(fout, "%s\tproto = IPPROTO_%s;\n", 935 sp, isudp ? "UDP": "TCP"); 936 } 937 for (l = defined; l != NULL; l = l->next) { 938 def = (definition *) l->val; 939 if (def->def_kind != DEF_PROGRAM) { 940 continue; 941 } 942 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 943 f_print(fout, "%s\tif (!svc_register(%s, %s, %s, ", 944 sp, TRANSP, def->def_name, vp->vers_name); 945 pvname(def->def_name, vp->vers_num); 946 if (inetdflag) 947 f_print(fout, ", proto)) {\n"); 948 else 949 f_print(fout, ", IPPROTO_%s)) {\n", 950 isudp ? "UDP": "TCP"); 951 (void) sprintf(_errbuf, "unable to register (%s, %s, %s).", 952 def->def_name, vp->vers_name, transp); 953 print_err_message(tmpbuf); 954 f_print(fout, "%s\t\texit(1);\n", sp); 955 f_print(fout, "%s\t}\n", sp); 956 } 957 } 958 if (inetdflag) 959 f_print(fout, "\t}\n"); 960 } 961
Indexes created Wed Sep 24 15:09:51 GMT 2025