rpc_svcout.c revision 1.8
1 /* $NetBSD: rpc_svcout.c,v 1.8 1997/10/11 21:01:52 christos 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 1.8 1997/10/11 21:01:52 christos 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, "\tregister SVCXPRT *%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, "\tregister SVCXPRT *%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 f_print(fout, "\n"); 364 if (storage != NULL) { 365 f_print(fout, "%s ", storage); 366 } 367 f_print(fout, "void\n"); 368 pvname(def->def_name, vp->vers_num); 369 370 if (Cflag) { 371 f_print(fout, "(struct svc_req *%s, ", RQSTP); 372 f_print(fout, "register SVCXPRT *%s)\n", TRANSP); 373 } else { 374 f_print(fout, "(%s, %s)\n", RQSTP, TRANSP); 375 f_print(fout, " struct svc_req *%s;\n", RQSTP); 376 f_print(fout, " register SVCXPRT *%s;\n", TRANSP); 377 } 378 379 f_print(fout, "{\n"); 380 381 filled = 0; 382 f_print(fout, "\tunion {\n"); 383 for (proc = vp->procs; proc != NULL; proc = proc->next) { 384 if (proc->arg_num < 2) { /* single argument */ 385 if (streq(proc->args.decls->decl.type, 386 "void")) { 387 continue; 388 } 389 filled = 1; 390 f_print(fout, "\t\t"); 391 ptype(proc->args.decls->decl.prefix, 392 proc->args.decls->decl.type, 0); 393 pvname(proc->proc_name, vp->vers_num); 394 f_print(fout, "_arg;\n"); 395 396 } 397 else { 398 filled = 1; 399 f_print(fout, "\t\t%s", proc->args.argname); 400 f_print(fout, " "); 401 pvname(proc->proc_name, vp->vers_num); 402 f_print(fout, "_arg;\n"); 403 } 404 } 405 if (!filled) { 406 f_print(fout, "\t\tint fill;\n"); 407 } 408 f_print(fout, "\t} %s;\n", ARG); 409 f_print(fout, "\tchar *%s;\n", RESULT); 410 411 if (Cflag) { 412 f_print(fout, "\txdrproc_t xdr_%s, xdr_%s;\n", ARG, RESULT); 413 f_print(fout, 414 "\tchar *(*%s)(char *, struct svc_req *);\n", 415 ROUTINE); 416 } else { 417 f_print(fout, "\tbool_t (*xdr_%s)(), (*xdr_%s)();\n", ARG, RESULT); 418 f_print(fout, "\tchar *(*%s)();\n", ROUTINE); 419 } 420 421 f_print(fout, "\n"); 422 423 if (callerflag) 424 f_print(fout, "\tcaller = transp;\n"); /*EVAS*/ 425 if (timerflag) 426 f_print(fout, "\t_rpcsvcdirty = 1;\n"); 427 f_print(fout, "\tswitch (%s->rq_proc) {\n", RQSTP); 428 if (!nullproc(vp->procs)) { 429 f_print(fout, "\tcase NULLPROC:\n"); 430 f_print(fout, 431 Cflag 432 ? "\t\t(void) svc_sendreply(%s, (xdrproc_t) xdr_void, (char *)NULL);\n" 433 : "\t\t(void) svc_sendreply(%s, xdr_void, (char *)NULL);\n", 434 TRANSP); 435 print_return("\t\t"); 436 f_print(fout, "\n"); 437 } 438 for (proc = vp->procs; proc != NULL; proc = proc->next) { 439 f_print(fout, "\tcase %s:\n", proc->proc_name); 440 if (proc->arg_num < 2) { /* single argument */ 441 p_xdrfunc( ARG, proc->args.decls->decl.type); 442 } else { 443 p_xdrfunc( ARG, proc->args.argname); 444 } 445 p_xdrfunc( RESULT, proc->res_type); 446 if( Cflag ) 447 f_print(fout, 448 "\t\t%s = (char *(*)(char *, struct svc_req *)) ", 449 ROUTINE); 450 else 451 f_print(fout, "\t\t%s = (char *(*)()) ", ROUTINE); 452 453 if (newstyle) { /* new style: calls internal routine */ 454 f_print(fout,"_"); 455 } 456 if (!newstyle ) 457 pvname_svc(proc->proc_name, vp->vers_num); 458 else 459 pvname(proc->proc_name, vp->vers_num); 460 f_print(fout, ";\n"); 461 f_print(fout, "\t\tbreak;\n\n"); 462 } 463 f_print(fout, "\tdefault:\n"); 464 printerr("noproc", TRANSP); 465 print_return("\t\t"); 466 f_print(fout, "\t}\n"); 467 468 f_print(fout, "\t(void) memset((char *)&%s, 0, sizeof (%s));\n", ARG, ARG); 469 printif("getargs", TRANSP, "(caddr_t) &", 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 printif("freeargs", TRANSP, "(caddr_t) &", ARG); 487 (void) sprintf(_errbuf, "unable to free arguments"); 488 print_err_message("\t\t"); 489 f_print(fout, "\t\texit(1);\n"); 490 f_print(fout, "\t}\n"); 491 print_return("\t"); 492 f_print(fout, "}\n"); 493 } 494 } 495 496 static void 497 printerr(err, transp) 498 char *err; 499 char *transp; 500 { 501 f_print(fout, "\t\tsvcerr_%s(%s);\n", err, transp); 502 } 503 504 static void 505 printif(proc, transp, prefix, arg) 506 char *proc; 507 char *transp; 508 char *prefix; 509 char *arg; 510 { 511 f_print(fout, "\tif (!svc_%s(%s, xdr_%s, %s%s)) {\n", 512 proc, transp, arg, prefix, arg); 513 } 514 515 int 516 nullproc(proc) 517 proc_list *proc; 518 { 519 for (; proc != NULL; proc = proc->next) { 520 if (streq(proc->proc_num, "0")) { 521 return (1); 522 } 523 } 524 return (0); 525 } 526 527 static void 528 write_inetmost(infile) 529 char *infile; 530 { 531 f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP); 532 f_print(fout, "\tint sock;\n"); 533 f_print(fout, "\tint proto;\n"); 534 f_print(fout, "\tstruct sockaddr_in saddr;\n"); 535 f_print(fout, "\tint asize = sizeof (saddr);\n"); 536 f_print(fout, "\n"); 537 f_print(fout, 538 "\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n"); 539 f_print(fout, "\t\tint ssize = sizeof (int);\n\n"); 540 f_print(fout, "\t\tif (saddr.sin_family != AF_INET)\n"); 541 f_print(fout, "\t\t\texit(1);\n"); 542 f_print(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n"); 543 f_print(fout, "\t\t\t\t(char *)&_rpcfdtype, &ssize) == -1)\n"); 544 f_print(fout, "\t\t\texit(1);\n"); 545 f_print(fout, "\t\tsock = 0;\n"); 546 f_print(fout, "\t\t_rpcpmstart = 1;\n"); 547 f_print(fout, "\t\tproto = 0;\n"); 548 open_log_file(infile, "\t\t"); 549 f_print(fout, "\t} else {\n"); 550 write_rpc_svc_fg(infile, "\t\t"); 551 f_print(fout, "\t\tsock = RPC_ANYSOCK;\n"); 552 print_pmapunset("\t\t"); 553 f_print(fout, "\t}\n"); 554 } 555 556 static void 557 print_return(space) 558 char *space; 559 { 560 if (exitnow) 561 f_print(fout, "%sexit(0);\n", space); 562 else { 563 if (timerflag) 564 f_print(fout, "%s_rpcsvcdirty = 0;\n", space); 565 f_print(fout, "%sreturn;\n", space); 566 } 567 } 568 569 static void 570 print_pmapunset(space) 571 char *space; 572 { 573 list *l; 574 definition *def; 575 version_list *vp; 576 577 for (l = defined; l != NULL; l = l->next) { 578 def = (definition *) l->val; 579 if (def->def_kind == DEF_PROGRAM) { 580 for (vp = def->def.pr.versions; vp != NULL; 581 vp = vp->next) { 582 f_print(fout, "%s(void) pmap_unset(%s, %s);\n", 583 space, def->def_name, vp->vers_name); 584 } 585 } 586 } 587 } 588 589 static void 590 print_err_message(space) 591 char *space; 592 { 593 if (logflag) 594 f_print(fout, "%ssyslog(LOG_ERR, \"%s\");\n", space, _errbuf); 595 else if (inetdflag || pmflag) 596 f_print(fout, "%s_msgout(\"%s\");\n", space, _errbuf); 597 else 598 f_print(fout, "%sfprintf(stderr, \"%s\");\n", space, _errbuf); 599 } 600 601 /* 602 * Write the server auxiliary function ( _msgout, timeout) 603 */ 604 void 605 write_svc_aux( nomain ) 606 int nomain; 607 { 608 if (!logflag) 609 write_msg_out(); 610 if( !nomain ) 611 write_timeout_func(); 612 if (callerflag) /*EVAS*/ 613 write_caller_func(); /*EVAS*/ 614 } 615 616 /* 617 * Write the _msgout function 618 */ 619 void 620 write_msg_out() 621 { 622 f_print(fout, "\n"); 623 f_print(fout, "static\n"); 624 if( !Cflag ) { 625 f_print(fout, "void _msgout(msg)\n"); 626 f_print(fout, "\tchar *msg;\n"); 627 } else { 628 f_print(fout, "void _msgout(char* msg)\n"); 629 } 630 f_print(fout, "{\n"); 631 f_print(fout, "#ifdef RPC_SVC_FG\n"); 632 if (inetdflag || pmflag) 633 f_print(fout, "\tif (_rpcpmstart)\n"); 634 f_print(fout, "\t\tsyslog(LOG_ERR, msg);\n"); 635 f_print(fout, "\telse\n"); 636 f_print(fout, "\t\t(void) fprintf(stderr, \"%%s\\n\", msg);\n"); 637 f_print(fout, "#else\n"); 638 f_print(fout, "\tsyslog(LOG_ERR, msg);\n"); 639 f_print(fout, "#endif\n"); 640 f_print(fout, "}\n"); 641 } 642 643 /* 644 * Write the timeout function 645 */ 646 static void 647 write_timeout_func() 648 { 649 if (!timerflag) 650 return; 651 f_print(fout, "\n"); 652 f_print(fout, "static void\n"); 653 f_print(fout, "closedown()\n"); 654 f_print(fout, "{\n"); 655 f_print(fout, "\tif (_rpcsvcdirty == 0) {\n"); 656 f_print(fout, "\t\textern fd_set svc_fdset;\n"); 657 f_print(fout, "\t\tstatic int size;\n"); 658 f_print(fout, "\t\tint i, openfd;\n"); 659 if (tirpcflag && pmflag) { 660 f_print(fout, "\t\tstruct t_info tinfo;\n\n"); 661 f_print(fout, "\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n"); 662 } else { 663 f_print(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n"); 664 } 665 f_print(fout, "\t\t\texit(0);\n"); 666 f_print(fout, "\t\tif (size == 0) {\n"); 667 if( tirpcflag ) { 668 f_print(fout, "\t\t\tstruct rlimit rl;\n\n"); 669 f_print(fout, "\t\t\trl.rlim_max = 0;\n"); 670 f_print(fout, "\t\t\tgetrlimit(RLIMIT_NOFILE, &rl);\n"); 671 f_print(fout, "\t\t\tif ((size = rl.rlim_max) == 0)\n"); 672 f_print(fout, "\t\t\t\treturn;\n"); 673 } else { 674 f_print(fout, "\t\t\tsize = getdtablesize();\n"); 675 } 676 f_print(fout, "\t\t}\n"); 677 f_print(fout, "\t\tfor (i = 0, openfd = 0; i < size && openfd < 2; i++)\n"); 678 f_print(fout, "\t\t\tif (FD_ISSET(i, &svc_fdset))\n"); 679 f_print(fout, "\t\t\t\topenfd++;\n"); 680 f_print(fout, "\t\tif (openfd <= (_rpcpmstart?0:1))\n"); 681 f_print(fout, "\t\t\texit(0);\n"); 682 f_print(fout, "\t}\n"); 683 f_print(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 684 f_print(fout, "}\n"); 685 } 686 687 static void 688 write_caller_func() /*EVAS*/ 689 { 690 #define P(s) f_print(fout, s); 691 692 P("\n"); 693 P("char *svc_caller()\n"); 694 P("{\n"); 695 P(" struct sockaddr_in actual;\n"); 696 P(" struct hostent *hp;\n"); 697 P(" static struct in_addr prev;\n"); 698 P(" static char cname[128];\n\n"); 699 700 P(" actual = *svc_getcaller(caller);\n\n"); 701 702 P(" if (memcmp((char *)&actual.sin_addr, (char *)&prev,\n"); 703 P(" sizeof(struct in_addr)) == 0)\n"); 704 P(" return (cname);\n\n"); 705 706 P(" prev = actual.sin_addr;\n\n"); 707 708 P(" hp = gethostbyaddr((char *) &actual.sin_addr, sizeof(actual.sin_addr), AF_INET);\n"); 709 P(" if (hp == NULL) { /* dummy one up */\n"); 710 P(" extern char *inet_ntoa();\n"); 711 P(" strcpy(cname, inet_ntoa(actual.sin_addr));\n"); 712 P(" } else {\n"); 713 P(" strcpy(cname, hp->h_name);\n"); 714 P(" }\n\n"); 715 716 P(" return (cname);\n"); 717 P("}\n"); 718 719 #undef P 720 } 721 722 /* 723 * Write the most of port monitor support 724 */ 725 static void 726 write_pm_most(infile, netflag) 727 char *infile; 728 int netflag; 729 { 730 list *l; 731 definition *def; 732 version_list *vp; 733 734 f_print(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n"); 735 f_print(fout, "\t\t(!strcmp(mname, \"sockmod\") ||"); 736 f_print(fout, " !strcmp(mname, \"timod\"))) {\n"); 737 f_print(fout, "\t\tchar *netid;\n"); 738 if (!netflag) { /* Not included by -n option */ 739 f_print(fout, "\t\tstruct netconfig *nconf = NULL;\n"); 740 f_print(fout, "\t\tSVCXPRT *%s;\n", TRANSP); 741 } 742 if( timerflag ) 743 f_print(fout, "\t\tint pmclose;\n"); 744 /* not necessary, defined in /usr/include/stdlib */ 745 /* f_print(fout, "\t\textern char *getenv();\n");*/ 746 f_print(fout, "\n"); 747 f_print(fout, "\t\t_rpcpmstart = 1;\n"); 748 if (logflag) 749 open_log_file(infile, "\t\t"); 750 f_print(fout, "\t\tif ((netid = getenv(\"NLSPROVIDER\")) == NULL) {\n"); 751 sprintf(_errbuf, "cannot get transport name"); 752 print_err_message("\t\t\t"); 753 f_print(fout, "\t\t} else if ((nconf = getnetconfigent(netid)) == NULL) {\n"); 754 sprintf(_errbuf, "cannot get transport info"); 755 print_err_message("\t\t\t"); 756 f_print(fout, "\t\t}\n"); 757 /* 758 * A kludgy support for inetd services. Inetd only works with 759 * sockmod, and RPC works only with timod, hence all this jugglery 760 */ 761 f_print(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n"); 762 f_print(fout, "\t\t\tif (ioctl(0, I_POP, 0) || ioctl(0, I_PUSH, \"timod\")) {\n"); 763 sprintf(_errbuf, "could not get the right module"); 764 print_err_message("\t\t\t\t"); 765 f_print(fout, "\t\t\t\texit(1);\n"); 766 f_print(fout, "\t\t\t}\n"); 767 f_print(fout, "\t\t}\n"); 768 if( timerflag ) 769 f_print(fout, "\t\tpmclose = (t_getstate(0) != T_DATAXFER);\n"); 770 f_print(fout, "\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) == NULL) {\n", 771 TRANSP); 772 sprintf(_errbuf, "cannot create server handle"); 773 print_err_message("\t\t\t"); 774 f_print(fout, "\t\t\texit(1);\n"); 775 f_print(fout, "\t\t}\n"); 776 f_print(fout, "\t\tif (nconf)\n"); 777 f_print(fout, "\t\t\tfreenetconfigent(nconf);\n"); 778 for (l = defined; l != NULL; l = l->next) { 779 def = (definition *) l->val; 780 if (def->def_kind != DEF_PROGRAM) { 781 continue; 782 } 783 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 784 f_print(fout, 785 "\t\tif (!svc_reg(%s, %s, %s, ", 786 TRANSP, def->def_name, vp->vers_name); 787 pvname(def->def_name, vp->vers_num); 788 f_print(fout, ", 0)) {\n"); 789 (void) sprintf(_errbuf, "unable to register (%s, %s).", 790 def->def_name, vp->vers_name); 791 print_err_message("\t\t\t"); 792 f_print(fout, "\t\t\texit(1);\n"); 793 f_print(fout, "\t\t}\n"); 794 } 795 } 796 if (timerflag) { 797 f_print(fout, "\t\tif (pmclose) {\n"); 798 f_print(fout, "\t\t\t(void) signal(SIGALRM, %s closedown);\n", 799 Cflag? "(SIG_PF)" : "(void(*)())" ); 800 f_print(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 801 f_print(fout, "\t\t}\n"); 802 } 803 f_print(fout, "\t\tsvc_run();\n"); 804 f_print(fout, "\t\texit(1);\n"); 805 f_print(fout, "\t\t/* NOTREACHED */\n"); 806 f_print(fout, "\t}\n"); 807 } 808 809 /* 810 * Support for backgrounding the server if self started. 811 */ 812 static void 813 write_rpc_svc_fg(infile, sp) 814 char *infile; 815 char *sp; 816 { 817 f_print(fout, "#ifndef RPC_SVC_FG\n"); 818 f_print(fout, "%sint size;\n", sp); 819 if( tirpcflag ) 820 f_print(fout, "%sstruct rlimit rl;\n", sp); 821 if (inetdflag) 822 f_print(fout, "%sint pid, i;\n\n", sp); 823 f_print(fout, "%spid = fork();\n", sp); 824 f_print(fout, "%sif (pid < 0) {\n", sp); 825 f_print(fout, "%s\tperror(\"cannot fork\");\n", sp); 826 f_print(fout, "%s\texit(1);\n", sp); 827 f_print(fout, "%s}\n", sp); 828 f_print(fout, "%sif (pid)\n", sp); 829 f_print(fout, "%s\texit(0);\n", sp); 830 /* get number of file descriptors */ 831 if( tirpcflag ) { 832 f_print(fout, "%srl.rlim_max = 0;\n", sp); 833 f_print(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp); 834 f_print(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp); 835 f_print(fout, "%s\texit(1);\n", sp); 836 } else { 837 f_print(fout, "%ssize = getdtablesize();\n", sp); 838 } 839 840 f_print(fout, "%sfor (i = 0; i < size; i++)\n", sp); 841 f_print(fout, "%s\t(void) close(i);\n", sp); 842 /* Redirect stderr and stdout to console */ 843 f_print(fout, "%si = open(\"/dev/console\", 2);\n", sp); 844 f_print(fout, "%s(void) dup2(i, 1);\n", sp); 845 f_print(fout, "%s(void) dup2(i, 2);\n", sp); 846 /* This removes control of the controlling terminal */ 847 if( tirpcflag ) 848 f_print(fout, "%ssetsid();\n", sp); 849 else { 850 f_print(fout, "%si = open(\"/dev/tty\", 2);\n", sp); 851 f_print(fout, "%sif (i >= 0) {\n", sp); 852 f_print(fout, "%s\t(void) ioctl(i, TIOCNOTTY, (char *)NULL);\n", sp);; 853 f_print(fout, "%s\t(void) close(i);\n", sp); 854 f_print(fout, "%s}\n", sp); 855 } 856 if (!logflag) 857 open_log_file(infile, sp); 858 f_print(fout, "#endif\n"); 859 if (logflag) 860 open_log_file(infile, sp); 861 } 862 863 static void 864 open_log_file(infile, sp) 865 char *infile; 866 char *sp; 867 { 868 char *s; 869 870 s = strrchr(infile, '.'); 871 if (s) 872 *s = '\0'; 873 f_print(fout,"%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, infile); 874 if (s) 875 *s = '.'; 876 } 877 878 879 880 881 /* 882 * write a registration for the given transport for Inetd 883 */ 884 void 885 write_inetd_register(transp) 886 char *transp; 887 { 888 list *l; 889 definition *def; 890 version_list *vp; 891 char *sp; 892 int isudp; 893 char tmpbuf[32]; 894 895 if (inetdflag) 896 sp = "\t"; 897 else 898 sp = ""; 899 if (streq(transp, "udp")) 900 isudp = 1; 901 else 902 isudp = 0; 903 f_print(fout, "\n"); 904 if (inetdflag) { 905 f_print(fout, "\tif ((_rpcfdtype == 0) || (_rpcfdtype == %s)) {\n", 906 isudp ? "SOCK_DGRAM" : "SOCK_STREAM"); 907 } 908 if (inetdflag && streq(transp, "tcp")) { 909 f_print(fout, "%s\tif (_rpcpmstart)\n", sp); 910 911 f_print(fout, "%s\t\t%s = svc%s_create(%s", 912 sp, TRANSP, "fd", inetdflag? "sock": "RPC_ANYSOCK"); 913 if (!isudp) 914 f_print(fout, ", 0, 0"); 915 f_print(fout, ");\n"); 916 917 f_print(fout, "%s\telse\n", sp); 918 919 f_print(fout, "%s\t\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 } else { 926 f_print(fout, "%s\t%s = svc%s_create(%s", 927 sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK"); 928 if (!isudp) 929 f_print(fout, ", 0, 0"); 930 f_print(fout, ");\n"); 931 } 932 f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP); 933 (void) sprintf(_errbuf, "cannot create %s service.", transp); 934 (void) sprintf(tmpbuf, "%s\t\t", sp); 935 print_err_message(tmpbuf); 936 f_print(fout, "%s\t\texit(1);\n", sp); 937 f_print(fout, "%s\t}\n", sp); 938 939 if (inetdflag) { 940 f_print(fout, "%s\tif (!_rpcpmstart)\n\t", sp); 941 f_print(fout, "%s\tproto = IPPROTO_%s;\n", 942 sp, isudp ? "UDP": "TCP"); 943 } 944 for (l = defined; l != NULL; l = l->next) { 945 def = (definition *) l->val; 946 if (def->def_kind != DEF_PROGRAM) { 947 continue; 948 } 949 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 950 f_print(fout, "%s\tif (!svc_register(%s, %s, %s, ", 951 sp, TRANSP, def->def_name, vp->vers_name); 952 pvname(def->def_name, vp->vers_num); 953 if (inetdflag) 954 f_print(fout, ", proto)) {\n"); 955 else 956 f_print(fout, ", IPPROTO_%s)) {\n", 957 isudp ? "UDP": "TCP"); 958 (void) sprintf(_errbuf, "unable to register (%s, %s, %s).", 959 def->def_name, vp->vers_name, transp); 960 print_err_message(tmpbuf); 961 f_print(fout, "%s\t\texit(1);\n", sp); 962 f_print(fout, "%s\t}\n", sp); 963 } 964 } 965 if (inetdflag) 966 f_print(fout, "\t}\n"); 967 } 968
Indexes created Wed Sep 24 05:09:52 GMT 2025