rpc_svcout.c revision 1.9
1 /* $NetBSD: rpc_svcout.c,v 1.9 1997/10/17 15:52:00 lukem 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 #include <sys/cdefs.h> 33 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)rpc_svcout.c 1.29 89/03/30 (C) 1987 SMI"; 36 #else 37 __RCSID("$NetBSD: rpc_svcout.c,v 1.9 1997/10/17 15:52:00 lukem Exp $"); 38 #endif 39 #endif 40 41 /* 42 * rpc_svcout.c, Server-skeleton outputter for the RPC protocol compiler 43 */ 44 #include <stdio.h> 45 #include <string.h> 46 #include "rpc_scan.h" 47 #include "rpc_parse.h" 48 #include "rpc_util.h" 49 50 static char RQSTP[] = "rqstp"; 51 static char TRANSP[] = "transp"; 52 static char ARG[] = "argument"; 53 static char RESULT[] = "result"; 54 static char ROUTINE[] = "local"; 55 56 static void p_xdrfunc __P((char *, char *)); 57 static void internal_proctype __P((proc_list *)); 58 static void write_real_program __P((definition *)); 59 static void write_program __P((definition *, char *)); 60 static void printerr __P((char *, char *)); 61 static void printif __P((char *, char *, char *, char *)); 62 static void write_inetmost __P((char *)); 63 static void print_return __P((char *)); 64 static void print_pmapunset __P((char *)); 65 static void print_err_message __P((char *)); 66 static void write_timeout_func __P((void)); 67 static void write_caller_func __P((void)); 68 static void write_pm_most __P((char *, int)); 69 static void write_rpc_svc_fg __P((char *, char *)); 70 static void open_log_file __P((char *, char *)); 71 72 char _errbuf[256]; /* For all messages */ 73 74 static void 75 p_xdrfunc( rname, typename ) 76 char* rname; 77 char* typename; 78 { 79 if( Cflag ) 80 f_print(fout, "\t\txdr_%s = (xdrproc_t) xdr_%s;\n", rname, 81 stringfix(typename) ); 82 else 83 f_print(fout, "\t\txdr_%s = xdr_%s;\n", rname, stringfix(typename) ); 84 } 85 86 static 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 f_print(fout, "%s int _rpcfdtype;", var_type ); 111 f_print(fout, "\t\t/* Whether Stream or Datagram ? */\n"); 112 if (timerflag) { 113 f_print(fout, "%s int _rpcsvcdirty;", var_type ); 114 f_print(fout, "\t/* Still serving ? */\n"); 115 } 116 write_svc_aux( nomain ); 117 } 118 /* write out dispatcher and stubs */ 119 write_programs( nomain? (char *)NULL : "static" ); 120 121 if( nomain ) 122 return; 123 124 f_print(fout, "\nmain()\n"); 125 f_print(fout, "{\n"); 126 if (inetdflag) { 127 write_inetmost(infile); /* Includes call to write_rpc_svc_fg() */ 128 } else { 129 if( tirpcflag ) { 130 if (netflag) { 131 f_print(fout, "\tSVCXPRT *%s;\n", TRANSP); 132 f_print(fout, "\tstruct netconfig *nconf = NULL;\n"); 133 } 134 f_print(fout, "\tpid_t pid;\n"); 135 f_print(fout, "\tint i;\n"); 136 f_print(fout, "\tchar mname[FMNAMESZ + 1];\n\n"); 137 write_pm_most(infile, netflag); 138 f_print(fout, "\telse {\n"); 139 write_rpc_svc_fg(infile, "\t\t"); 140 f_print(fout, "\t}\n"); 141 } else { 142 f_print(fout, "\tSVCXPRT *%s;\n", TRANSP); 143 f_print(fout, "\n"); 144 print_pmapunset("\t"); 145 } 146 } 147 148 if (logflag && !inetdflag) { 149 open_log_file(infile, "\t"); 150 } 151 } 152 153 /* 154 * write a registration for the given transport 155 */ 156 void 157 write_netid_register(transp) 158 char *transp; 159 { 160 list *l; 161 definition *def; 162 version_list *vp; 163 char *sp; 164 char tmpbuf[32]; 165 166 sp = ""; 167 f_print(fout, "\n"); 168 f_print(fout, "%s\tnconf = getnetconfigent(\"%s\");\n", sp, transp); 169 f_print(fout, "%s\tif (nconf == NULL) {\n", sp); 170 (void) sprintf(_errbuf, "cannot find %s netid.", transp); 171 sprintf(tmpbuf, "%s\t\t", sp); 172 print_err_message(tmpbuf); 173 f_print(fout, "%s\t\texit(1);\n", sp); 174 f_print(fout, "%s\t}\n", sp); 175 f_print(fout, "%s\t%s = svc_tli_create(RPC_ANYFD, nconf, 0, 0, 0);\n", 176 sp, TRANSP); 177 f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP); 178 (void) sprintf(_errbuf, "cannot create %s service.", transp); 179 print_err_message(tmpbuf); 180 f_print(fout, "%s\t\texit(1);\n", sp); 181 f_print(fout, "%s\t}\n", sp); 182 183 for (l = defined; l != NULL; l = l->next) { 184 def = (definition *) l->val; 185 if (def->def_kind != DEF_PROGRAM) { 186 continue; 187 } 188 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 189 f_print(fout, 190 "%s\t(void) rpcb_unset(%s, %s, nconf);\n", 191 sp, def->def_name, vp->vers_name); 192 f_print(fout, 193 "%s\tif (!svc_reg(%s, %s, %s, ", 194 sp, TRANSP, def->def_name, vp->vers_name); 195 pvname(def->def_name, vp->vers_num); 196 f_print(fout, ", nconf)) {\n"); 197 (void) sprintf(_errbuf, "unable to register (%s, %s, %s).", 198 def->def_name, vp->vers_name, transp); 199 print_err_message(tmpbuf); 200 f_print(fout, "%s\t\texit(1);\n", sp); 201 f_print(fout, "%s\t}\n", sp); 202 } 203 } 204 f_print(fout, "%s\tfreenetconfigent(nconf);\n", sp); 205 } 206 207 /* 208 * write a registration for the given transport for TLI 209 */ 210 void 211 write_nettype_register(transp) 212 char *transp; 213 { 214 list *l; 215 definition *def; 216 version_list *vp; 217 218 for (l = defined; l != NULL; l = l->next) { 219 def = (definition *) l->val; 220 if (def->def_kind != DEF_PROGRAM) { 221 continue; 222 } 223 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 224 f_print(fout, "\tif (!svc_create("); 225 pvname(def->def_name, vp->vers_num); 226 f_print(fout, ", %s, %s, \"%s\")) {\n ", 227 def->def_name, vp->vers_name, transp); 228 (void) sprintf(_errbuf, 229 "unable to create (%s, %s) for %s.", 230 def->def_name, vp->vers_name, transp); 231 print_err_message("\t\t"); 232 f_print(fout, "\t\texit(1);\n"); 233 f_print(fout, "\t}\n"); 234 } 235 } 236 } 237 238 /* 239 * write the rest of the service 240 */ 241 void 242 write_rest() 243 { 244 f_print(fout, "\n"); 245 if (inetdflag) { 246 f_print(fout, "\tif (%s == (SVCXPRT *)NULL) {\n", TRANSP); 247 (void) sprintf(_errbuf, "could not create a handle"); 248 print_err_message("\t\t"); 249 f_print(fout, "\t\texit(1);\n"); 250 f_print(fout, "\t}\n"); 251 if (timerflag) { 252 f_print(fout, "\tif (_rpcpmstart) {\n"); 253 f_print(fout, 254 "\t\t(void) signal(SIGALRM, %s closedown);\n", 255 Cflag? "(SIG_PF)" : "(void(*)())" ); 256 f_print(fout, "\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 257 f_print(fout, "\t}\n"); 258 } 259 } 260 f_print(fout, "\tsvc_run();\n"); 261 (void) sprintf(_errbuf, "svc_run returned"); 262 print_err_message("\t"); 263 f_print(fout, "\texit(1);\n"); 264 f_print(fout, "\t/* NOTREACHED */\n"); 265 f_print(fout, "}\n"); 266 } 267 268 void 269 write_programs(storage) 270 char *storage; 271 { 272 list *l; 273 definition *def; 274 275 /* write out stubs for procedure definitions */ 276 for (l = defined; l != NULL; l = l->next) { 277 def = (definition *) l->val; 278 if (def->def_kind == DEF_PROGRAM) { 279 write_real_program(def); 280 } 281 } 282 283 /* write out dispatcher for each program */ 284 for (l = defined; l != NULL; l = l->next) { 285 def = (definition *) l->val; 286 if (def->def_kind == DEF_PROGRAM) { 287 write_program(def, storage); 288 } 289 } 290 291 292 } 293 294 /* write out definition of internal function (e.g. _printmsg_1(...)) 295 which calls server's defintion of actual function (e.g. printmsg_1(...)). 296 Unpacks single user argument of printmsg_1 to call-by-value format 297 expected by printmsg_1. */ 298 static void 299 write_real_program(def) 300 definition *def; 301 { 302 version_list *vp; 303 proc_list *proc; 304 decl_list *l; 305 306 if( !newstyle ) return; /* not needed for old style */ 307 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 308 for (proc = vp->procs; proc != NULL; proc = proc->next) { 309 f_print(fout, "\n"); 310 internal_proctype(proc); 311 f_print(fout, "\n_"); 312 pvname(proc->proc_name, vp->vers_num); 313 if( Cflag ) { 314 f_print(fout, "(" ); 315 /* arg name */ 316 if (proc->arg_num > 1) 317 f_print(fout, proc->args.argname); 318 else 319 ptype(proc->args.decls->decl.prefix, 320 proc->args.decls->decl.type, 0); 321 f_print(fout, " *argp, struct svc_req *%s)\n", 322 RQSTP); 323 } else { 324 f_print(fout, "(argp, %s)\n", RQSTP ); 325 /* arg name */ 326 if (proc->arg_num > 1) 327 f_print(fout, "\t%s *argp;\n", proc->args.argname); 328 else { 329 f_print(fout, "\t"); 330 ptype(proc->args.decls->decl.prefix, 331 proc->args.decls->decl.type, 0); 332 f_print(fout, " *argp;\n"); 333 } 334 f_print(fout, " struct svc_req *%s;\n", RQSTP); 335 } 336 337 f_print(fout, "{\n"); 338 f_print(fout, "\treturn("); 339 pvname_svc(proc->proc_name, vp->vers_num); 340 f_print(fout, "("); 341 if (proc->arg_num < 2) { /* single argument */ 342 if (!streq( proc->args.decls->decl.type, "void")) 343 f_print(fout, "*argp, "); /* non-void */ 344 } else { 345 for (l = proc->args.decls; l != NULL; l = l->next) 346 f_print(fout, "argp->%s, ", l->decl.name); 347 } 348 f_print(fout, "%s));\n}\n", RQSTP); 349 } 350 } 351 } 352 353 static void 354 write_program(def, storage) 355 definition *def; 356 char *storage; 357 { 358 version_list *vp; 359 proc_list *proc; 360 int filled; 361 362 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 363 if (Cflag) { 364 f_print(fout, "\n"); 365 if (storage != NULL) { 366 f_print(fout, "%s ", storage); 367 } 368 f_print(fout, "void "); 369 pvname(def->def_name, vp->vers_num); 370 f_print(fout, "(struct svc_req *%s, ", RQSTP); 371 f_print(fout, "SVCXPRT *%s);\n", TRANSP); 372 } 373 374 f_print(fout, "\n"); 375 if (storage != NULL) { 376 f_print(fout, "%s ", storage); 377 } 378 f_print(fout, "void\n"); 379 pvname(def->def_name, vp->vers_num); 380 381 if (Cflag) { 382 f_print(fout, "(struct svc_req *%s, ", RQSTP); 383 f_print(fout, "SVCXPRT *%s)\n", TRANSP); 384 } else { 385 f_print(fout, "(%s, %s)\n", RQSTP, TRANSP); 386 f_print(fout, " struct svc_req *%s;\n", RQSTP); 387 f_print(fout, " SVCXPRT *%s;\n", TRANSP); 388 } 389 390 f_print(fout, "{\n"); 391 392 filled = 0; 393 f_print(fout, "\tunion {\n"); 394 for (proc = vp->procs; proc != NULL; proc = proc->next) { 395 if (proc->arg_num < 2) { /* single argument */ 396 if (streq(proc->args.decls->decl.type, 397 "void")) { 398 continue; 399 } 400 filled = 1; 401 f_print(fout, "\t\t"); 402 ptype(proc->args.decls->decl.prefix, 403 proc->args.decls->decl.type, 0); 404 pvname(proc->proc_name, vp->vers_num); 405 f_print(fout, "_arg;\n"); 406 407 } 408 else { 409 filled = 1; 410 f_print(fout, "\t\t%s", proc->args.argname); 411 f_print(fout, " "); 412 pvname(proc->proc_name, vp->vers_num); 413 f_print(fout, "_arg;\n"); 414 } 415 } 416 if (!filled) { 417 f_print(fout, "\t\tint fill;\n"); 418 } 419 f_print(fout, "\t} %s;\n", ARG); 420 f_print(fout, "\tchar *%s;\n", RESULT); 421 422 if (Cflag) { 423 f_print(fout, "\txdrproc_t xdr_%s, xdr_%s;\n", ARG, RESULT); 424 f_print(fout, 425 "\tchar *(*%s)(char *, struct svc_req *);\n", 426 ROUTINE); 427 } else { 428 f_print(fout, "\tbool_t (*xdr_%s)(), (*xdr_%s)();\n", ARG, RESULT); 429 f_print(fout, "\tchar *(*%s)();\n", ROUTINE); 430 } 431 432 f_print(fout, "\n"); 433 434 if (callerflag) 435 f_print(fout, "\tcaller = transp;\n"); /*EVAS*/ 436 if (timerflag) 437 f_print(fout, "\t_rpcsvcdirty = 1;\n"); 438 f_print(fout, "\tswitch (%s->rq_proc) {\n", RQSTP); 439 if (!nullproc(vp->procs)) { 440 f_print(fout, "\tcase NULLPROC:\n"); 441 f_print(fout, 442 Cflag 443 ? "\t\t(void) svc_sendreply(%s, (xdrproc_t) xdr_void, (char *)NULL);\n" 444 : "\t\t(void) svc_sendreply(%s, xdr_void, (char *)NULL);\n", 445 TRANSP); 446 print_return("\t\t"); 447 f_print(fout, "\n"); 448 } 449 for (proc = vp->procs; proc != NULL; proc = proc->next) { 450 f_print(fout, "\tcase %s:\n", proc->proc_name); 451 if (proc->arg_num < 2) { /* single argument */ 452 p_xdrfunc( ARG, proc->args.decls->decl.type); 453 } else { 454 p_xdrfunc( ARG, proc->args.argname); 455 } 456 p_xdrfunc( RESULT, proc->res_type); 457 if( Cflag ) 458 f_print(fout, 459 "\t\t%s = (char *(*)(char *, struct svc_req *)) ", 460 ROUTINE); 461 else 462 f_print(fout, "\t\t%s = (char *(*)()) ", ROUTINE); 463 464 if (newstyle) { /* new style: calls internal routine */ 465 f_print(fout,"_"); 466 } 467 if (!newstyle ) 468 pvname_svc(proc->proc_name, vp->vers_num); 469 else 470 pvname(proc->proc_name, vp->vers_num); 471 f_print(fout, ";\n"); 472 f_print(fout, "\t\tbreak;\n\n"); 473 } 474 f_print(fout, "\tdefault:\n"); 475 printerr("noproc", TRANSP); 476 print_return("\t\t"); 477 f_print(fout, "\t}\n"); 478 479 f_print(fout, "\t(void) memset((char *)&%s, 0, sizeof (%s));\n", ARG, ARG); 480 printif("getargs", TRANSP, "(caddr_t) &", ARG); 481 printerr("decode", TRANSP); 482 print_return("\t\t"); 483 f_print(fout, "\t}\n"); 484 485 if (Cflag) 486 f_print(fout, "\t%s = (*%s)((char *)&%s, %s);\n", 487 RESULT, ROUTINE, ARG, RQSTP); 488 else 489 f_print(fout, "\t%s = (*%s)(&%s, %s);\n", 490 RESULT, ROUTINE, ARG, RQSTP); 491 f_print(fout, 492 "\tif (%s != NULL && !svc_sendreply(%s, xdr_%s, %s)) {\n", 493 RESULT, TRANSP, RESULT, RESULT); 494 printerr("systemerr", TRANSP); 495 f_print(fout, "\t}\n"); 496 497 printif("freeargs", TRANSP, "(caddr_t) &", ARG); 498 (void) sprintf(_errbuf, "unable to free arguments"); 499 print_err_message("\t\t"); 500 f_print(fout, "\t\texit(1);\n"); 501 f_print(fout, "\t}\n"); 502 print_return("\t"); 503 f_print(fout, "}\n"); 504 } 505 } 506 507 static void 508 printerr(err, transp) 509 char *err; 510 char *transp; 511 { 512 f_print(fout, "\t\tsvcerr_%s(%s);\n", err, transp); 513 } 514 515 static void 516 printif(proc, transp, prefix, arg) 517 char *proc; 518 char *transp; 519 char *prefix; 520 char *arg; 521 { 522 f_print(fout, "\tif (!svc_%s(%s, xdr_%s, %s%s)) {\n", 523 proc, transp, arg, prefix, arg); 524 } 525 526 int 527 nullproc(proc) 528 proc_list *proc; 529 { 530 for (; proc != NULL; proc = proc->next) { 531 if (streq(proc->proc_num, "0")) { 532 return (1); 533 } 534 } 535 return (0); 536 } 537 538 static void 539 write_inetmost(infile) 540 char *infile; 541 { 542 f_print(fout, "\tSVCXPRT *%s;\n", TRANSP); 543 f_print(fout, "\tint sock;\n"); 544 f_print(fout, "\tint proto;\n"); 545 f_print(fout, "\tstruct sockaddr_in saddr;\n"); 546 f_print(fout, "\tint asize = sizeof (saddr);\n"); 547 f_print(fout, "\n"); 548 f_print(fout, 549 "\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n"); 550 f_print(fout, "\t\tint ssize = sizeof (int);\n\n"); 551 f_print(fout, "\t\tif (saddr.sin_family != AF_INET)\n"); 552 f_print(fout, "\t\t\texit(1);\n"); 553 f_print(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n"); 554 f_print(fout, "\t\t\t\t(char *)&_rpcfdtype, &ssize) == -1)\n"); 555 f_print(fout, "\t\t\texit(1);\n"); 556 f_print(fout, "\t\tsock = 0;\n"); 557 f_print(fout, "\t\t_rpcpmstart = 1;\n"); 558 f_print(fout, "\t\tproto = 0;\n"); 559 open_log_file(infile, "\t\t"); 560 f_print(fout, "\t} else {\n"); 561 write_rpc_svc_fg(infile, "\t\t"); 562 f_print(fout, "\t\tsock = RPC_ANYSOCK;\n"); 563 print_pmapunset("\t\t"); 564 f_print(fout, "\t}\n"); 565 } 566 567 static void 568 print_return(space) 569 char *space; 570 { 571 if (exitnow) 572 f_print(fout, "%sexit(0);\n", space); 573 else { 574 if (timerflag) 575 f_print(fout, "%s_rpcsvcdirty = 0;\n", space); 576 f_print(fout, "%sreturn;\n", space); 577 } 578 } 579 580 static void 581 print_pmapunset(space) 582 char *space; 583 { 584 list *l; 585 definition *def; 586 version_list *vp; 587 588 for (l = defined; l != NULL; l = l->next) { 589 def = (definition *) l->val; 590 if (def->def_kind == DEF_PROGRAM) { 591 for (vp = def->def.pr.versions; vp != NULL; 592 vp = vp->next) { 593 f_print(fout, "%s(void) pmap_unset(%s, %s);\n", 594 space, def->def_name, vp->vers_name); 595 } 596 } 597 } 598 } 599 600 static void 601 print_err_message(space) 602 char *space; 603 { 604 if (logflag) 605 f_print(fout, "%ssyslog(LOG_ERR, \"%s\");\n", space, _errbuf); 606 else if (inetdflag || pmflag) 607 f_print(fout, "%s_msgout(\"%s\");\n", space, _errbuf); 608 else 609 f_print(fout, "%sfprintf(stderr, \"%s\");\n", space, _errbuf); 610 } 611 612 /* 613 * Write the server auxiliary function ( _msgout, timeout) 614 */ 615 void 616 write_svc_aux( nomain ) 617 int nomain; 618 { 619 if (!logflag) 620 write_msg_out(); 621 if( !nomain ) 622 write_timeout_func(); 623 if (callerflag) /*EVAS*/ 624 write_caller_func(); /*EVAS*/ 625 } 626 627 /* 628 * Write the _msgout function 629 */ 630 void 631 write_msg_out() 632 { 633 f_print(fout, "\n"); 634 f_print(fout, "static\n"); 635 if( !Cflag ) { 636 f_print(fout, "void _msgout(msg)\n"); 637 f_print(fout, "\tchar *msg;\n"); 638 } else { 639 f_print(fout, "void _msgout(char* msg)\n"); 640 } 641 f_print(fout, "{\n"); 642 f_print(fout, "#ifdef RPC_SVC_FG\n"); 643 if (inetdflag || pmflag) 644 f_print(fout, "\tif (_rpcpmstart)\n"); 645 f_print(fout, "\t\tsyslog(LOG_ERR, msg);\n"); 646 f_print(fout, "\telse\n"); 647 f_print(fout, "\t\t(void) fprintf(stderr, \"%%s\\n\", msg);\n"); 648 f_print(fout, "#else\n"); 649 f_print(fout, "\tsyslog(LOG_ERR, msg);\n"); 650 f_print(fout, "#endif\n"); 651 f_print(fout, "}\n"); 652 } 653 654 /* 655 * Write the timeout function 656 */ 657 static void 658 write_timeout_func() 659 { 660 if (!timerflag) 661 return; 662 f_print(fout, "\n"); 663 f_print(fout, "static void\n"); 664 f_print(fout, "closedown()\n"); 665 f_print(fout, "{\n"); 666 f_print(fout, "\tif (_rpcsvcdirty == 0) {\n"); 667 f_print(fout, "\t\textern fd_set svc_fdset;\n"); 668 f_print(fout, "\t\tstatic int size;\n"); 669 f_print(fout, "\t\tint i, openfd;\n"); 670 if (tirpcflag && pmflag) { 671 f_print(fout, "\t\tstruct t_info tinfo;\n\n"); 672 f_print(fout, "\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n"); 673 } else { 674 f_print(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n"); 675 } 676 f_print(fout, "\t\t\texit(0);\n"); 677 f_print(fout, "\t\tif (size == 0) {\n"); 678 if( tirpcflag ) { 679 f_print(fout, "\t\t\tstruct rlimit rl;\n\n"); 680 f_print(fout, "\t\t\trl.rlim_max = 0;\n"); 681 f_print(fout, "\t\t\tgetrlimit(RLIMIT_NOFILE, &rl);\n"); 682 f_print(fout, "\t\t\tif ((size = rl.rlim_max) == 0)\n"); 683 f_print(fout, "\t\t\t\treturn;\n"); 684 } else { 685 f_print(fout, "\t\t\tsize = getdtablesize();\n"); 686 } 687 f_print(fout, "\t\t}\n"); 688 f_print(fout, "\t\tfor (i = 0, openfd = 0; i < size && openfd < 2; i++)\n"); 689 f_print(fout, "\t\t\tif (FD_ISSET(i, &svc_fdset))\n"); 690 f_print(fout, "\t\t\t\topenfd++;\n"); 691 f_print(fout, "\t\tif (openfd <= (_rpcpmstart?0:1))\n"); 692 f_print(fout, "\t\t\texit(0);\n"); 693 f_print(fout, "\t}\n"); 694 f_print(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 695 f_print(fout, "}\n"); 696 } 697 698 static void 699 write_caller_func() /*EVAS*/ 700 { 701 #define P(s) f_print(fout, s); 702 703 P("\n"); 704 P("char *svc_caller()\n"); 705 P("{\n"); 706 P(" struct sockaddr_in actual;\n"); 707 P(" struct hostent *hp;\n"); 708 P(" static struct in_addr prev;\n"); 709 P(" static char cname[128];\n\n"); 710 711 P(" actual = *svc_getcaller(caller);\n\n"); 712 713 P(" if (memcmp((char *)&actual.sin_addr, (char *)&prev,\n"); 714 P(" sizeof(struct in_addr)) == 0)\n"); 715 P(" return (cname);\n\n"); 716 717 P(" prev = actual.sin_addr;\n\n"); 718 719 P(" hp = gethostbyaddr((char *) &actual.sin_addr, sizeof(actual.sin_addr), AF_INET);\n"); 720 P(" if (hp == NULL) { /* dummy one up */\n"); 721 P(" extern char *inet_ntoa();\n"); 722 P(" strcpy(cname, inet_ntoa(actual.sin_addr));\n"); 723 P(" } else {\n"); 724 P(" strcpy(cname, hp->h_name);\n"); 725 P(" }\n\n"); 726 727 P(" return (cname);\n"); 728 P("}\n"); 729 730 #undef P 731 } 732 733 /* 734 * Write the most of port monitor support 735 */ 736 static void 737 write_pm_most(infile, netflag) 738 char *infile; 739 int netflag; 740 { 741 list *l; 742 definition *def; 743 version_list *vp; 744 745 f_print(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n"); 746 f_print(fout, "\t\t(!strcmp(mname, \"sockmod\") ||"); 747 f_print(fout, " !strcmp(mname, \"timod\"))) {\n"); 748 f_print(fout, "\t\tchar *netid;\n"); 749 if (!netflag) { /* Not included by -n option */ 750 f_print(fout, "\t\tstruct netconfig *nconf = NULL;\n"); 751 f_print(fout, "\t\tSVCXPRT *%s;\n", TRANSP); 752 } 753 if( timerflag ) 754 f_print(fout, "\t\tint pmclose;\n"); 755 /* not necessary, defined in /usr/include/stdlib */ 756 /* f_print(fout, "\t\textern char *getenv();\n");*/ 757 f_print(fout, "\n"); 758 f_print(fout, "\t\t_rpcpmstart = 1;\n"); 759 if (logflag) 760 open_log_file(infile, "\t\t"); 761 f_print(fout, "\t\tif ((netid = getenv(\"NLSPROVIDER\")) == NULL) {\n"); 762 sprintf(_errbuf, "cannot get transport name"); 763 print_err_message("\t\t\t"); 764 f_print(fout, "\t\t} else if ((nconf = getnetconfigent(netid)) == NULL) {\n"); 765 sprintf(_errbuf, "cannot get transport info"); 766 print_err_message("\t\t\t"); 767 f_print(fout, "\t\t}\n"); 768 /* 769 * A kludgy support for inetd services. Inetd only works with 770 * sockmod, and RPC works only with timod, hence all this jugglery 771 */ 772 f_print(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n"); 773 f_print(fout, "\t\t\tif (ioctl(0, I_POP, 0) || ioctl(0, I_PUSH, \"timod\")) {\n"); 774 sprintf(_errbuf, "could not get the right module"); 775 print_err_message("\t\t\t\t"); 776 f_print(fout, "\t\t\t\texit(1);\n"); 777 f_print(fout, "\t\t\t}\n"); 778 f_print(fout, "\t\t}\n"); 779 if( timerflag ) 780 f_print(fout, "\t\tpmclose = (t_getstate(0) != T_DATAXFER);\n"); 781 f_print(fout, "\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) == NULL) {\n", 782 TRANSP); 783 sprintf(_errbuf, "cannot create server handle"); 784 print_err_message("\t\t\t"); 785 f_print(fout, "\t\t\texit(1);\n"); 786 f_print(fout, "\t\t}\n"); 787 f_print(fout, "\t\tif (nconf)\n"); 788 f_print(fout, "\t\t\tfreenetconfigent(nconf);\n"); 789 for (l = defined; l != NULL; l = l->next) { 790 def = (definition *) l->val; 791 if (def->def_kind != DEF_PROGRAM) { 792 continue; 793 } 794 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 795 f_print(fout, 796 "\t\tif (!svc_reg(%s, %s, %s, ", 797 TRANSP, def->def_name, vp->vers_name); 798 pvname(def->def_name, vp->vers_num); 799 f_print(fout, ", 0)) {\n"); 800 (void) sprintf(_errbuf, "unable to register (%s, %s).", 801 def->def_name, vp->vers_name); 802 print_err_message("\t\t\t"); 803 f_print(fout, "\t\t\texit(1);\n"); 804 f_print(fout, "\t\t}\n"); 805 } 806 } 807 if (timerflag) { 808 f_print(fout, "\t\tif (pmclose) {\n"); 809 f_print(fout, "\t\t\t(void) signal(SIGALRM, %s closedown);\n", 810 Cflag? "(SIG_PF)" : "(void(*)())" ); 811 f_print(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 812 f_print(fout, "\t\t}\n"); 813 } 814 f_print(fout, "\t\tsvc_run();\n"); 815 f_print(fout, "\t\texit(1);\n"); 816 f_print(fout, "\t\t/* NOTREACHED */\n"); 817 f_print(fout, "\t}\n"); 818 } 819 820 /* 821 * Support for backgrounding the server if self started. 822 */ 823 static void 824 write_rpc_svc_fg(infile, sp) 825 char *infile; 826 char *sp; 827 { 828 f_print(fout, "#ifndef RPC_SVC_FG\n"); 829 f_print(fout, "%sint size;\n", sp); 830 if( tirpcflag ) 831 f_print(fout, "%sstruct rlimit rl;\n", sp); 832 if (inetdflag) 833 f_print(fout, "%sint pid, i;\n\n", sp); 834 f_print(fout, "%spid = fork();\n", sp); 835 f_print(fout, "%sif (pid < 0) {\n", sp); 836 f_print(fout, "%s\tperror(\"cannot fork\");\n", sp); 837 f_print(fout, "%s\texit(1);\n", sp); 838 f_print(fout, "%s}\n", sp); 839 f_print(fout, "%sif (pid)\n", sp); 840 f_print(fout, "%s\texit(0);\n", sp); 841 /* get number of file descriptors */ 842 if( tirpcflag ) { 843 f_print(fout, "%srl.rlim_max = 0;\n", sp); 844 f_print(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp); 845 f_print(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp); 846 f_print(fout, "%s\texit(1);\n", sp); 847 } else { 848 f_print(fout, "%ssize = getdtablesize();\n", sp); 849 } 850 851 f_print(fout, "%sfor (i = 0; i < size; i++)\n", sp); 852 f_print(fout, "%s\t(void) close(i);\n", sp); 853 /* Redirect stderr and stdout to console */ 854 f_print(fout, "%si = open(\"/dev/console\", 2);\n", sp); 855 f_print(fout, "%s(void) dup2(i, 1);\n", sp); 856 f_print(fout, "%s(void) dup2(i, 2);\n", sp); 857 /* This removes control of the controlling terminal */ 858 if( tirpcflag ) 859 f_print(fout, "%ssetsid();\n", sp); 860 else { 861 f_print(fout, "%si = open(\"/dev/tty\", 2);\n", sp); 862 f_print(fout, "%sif (i >= 0) {\n", sp); 863 f_print(fout, "%s\t(void) ioctl(i, TIOCNOTTY, (char *)NULL);\n", sp);; 864 f_print(fout, "%s\t(void) close(i);\n", sp); 865 f_print(fout, "%s}\n", sp); 866 } 867 if (!logflag) 868 open_log_file(infile, sp); 869 f_print(fout, "#endif\n"); 870 if (logflag) 871 open_log_file(infile, sp); 872 } 873 874 static void 875 open_log_file(infile, sp) 876 char *infile; 877 char *sp; 878 { 879 char *s; 880 881 s = strrchr(infile, '.'); 882 if (s) 883 *s = '\0'; 884 f_print(fout,"%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, infile); 885 if (s) 886 *s = '.'; 887 } 888 889 890 891 892 /* 893 * write a registration for the given transport for Inetd 894 */ 895 void 896 write_inetd_register(transp) 897 char *transp; 898 { 899 list *l; 900 definition *def; 901 version_list *vp; 902 char *sp; 903 int isudp; 904 char tmpbuf[32]; 905 906 if (inetdflag) 907 sp = "\t"; 908 else 909 sp = ""; 910 if (streq(transp, "udp")) 911 isudp = 1; 912 else 913 isudp = 0; 914 f_print(fout, "\n"); 915 if (inetdflag) { 916 f_print(fout, "\tif ((_rpcfdtype == 0) || (_rpcfdtype == %s)) {\n", 917 isudp ? "SOCK_DGRAM" : "SOCK_STREAM"); 918 } 919 if (inetdflag && streq(transp, "tcp")) { 920 f_print(fout, "%s\tif (_rpcpmstart)\n", sp); 921 922 f_print(fout, "%s\t\t%s = svc%s_create(%s", 923 sp, TRANSP, "fd", inetdflag? "sock": "RPC_ANYSOCK"); 924 if (!isudp) 925 f_print(fout, ", 0, 0"); 926 f_print(fout, ");\n"); 927 928 f_print(fout, "%s\telse\n", sp); 929 930 f_print(fout, "%s\t\t%s = svc%s_create(%s", 931 sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK"); 932 if (!isudp) 933 f_print(fout, ", 0, 0"); 934 f_print(fout, ");\n"); 935 936 } else { 937 f_print(fout, "%s\t%s = svc%s_create(%s", 938 sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK"); 939 if (!isudp) 940 f_print(fout, ", 0, 0"); 941 f_print(fout, ");\n"); 942 } 943 f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP); 944 (void) sprintf(_errbuf, "cannot create %s service.", transp); 945 (void) sprintf(tmpbuf, "%s\t\t", sp); 946 print_err_message(tmpbuf); 947 f_print(fout, "%s\t\texit(1);\n", sp); 948 f_print(fout, "%s\t}\n", sp); 949 950 if (inetdflag) { 951 f_print(fout, "%s\tif (!_rpcpmstart)\n\t", sp); 952 f_print(fout, "%s\tproto = IPPROTO_%s;\n", 953 sp, isudp ? "UDP": "TCP"); 954 } 955 for (l = defined; l != NULL; l = l->next) { 956 def = (definition *) l->val; 957 if (def->def_kind != DEF_PROGRAM) { 958 continue; 959 } 960 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 961 f_print(fout, "%s\tif (!svc_register(%s, %s, %s, ", 962 sp, TRANSP, def->def_name, vp->vers_name); 963 pvname(def->def_name, vp->vers_num); 964 if (inetdflag) 965 f_print(fout, ", proto)) {\n"); 966 else 967 f_print(fout, ", IPPROTO_%s)) {\n", 968 isudp ? "UDP": "TCP"); 969 (void) sprintf(_errbuf, "unable to register (%s, %s, %s).", 970 def->def_name, vp->vers_name, transp); 971 print_err_message(tmpbuf); 972 f_print(fout, "%s\t\texit(1);\n", sp); 973 f_print(fout, "%s\t}\n", sp); 974 } 975 } 976 if (inetdflag) 977 f_print(fout, "\t}\n"); 978 } 979
Indexes created Wed Sep 24 05:09:52 GMT 2025