rpc_svcout.c revision 1.11
1 /* $NetBSD: rpc_svcout.c,v 1.11 2000/10/11 14:46:17 is 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 1.11 2000/10/11 14:46:17 is 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, "\n\n"); 125 if (Cflag) 126 f_print(fout, "int main( int argc, char* argv[] );\n"); 127 f_print(fout, "\nint\n"); 128 if (Cflag) 129 f_print(fout, "main( int argc, char* argv[] )\n"); 130 else 131 f_print(fout, "main(argc, argv)\nint argc;\nchar *argv[];\n"); 132 f_print(fout, "{\n"); 133 if (inetdflag) { 134 write_inetmost(infile); /* Includes call to write_rpc_svc_fg() */ 135 } else { 136 if (tirpcflag) { 137 if (netflag) { 138 f_print(fout, "\tSVCXPRT *%s;\n", TRANSP); 139 f_print(fout, "\tstruct netconfig *nconf = NULL;\n"); 140 } 141 f_print(fout, "\tpid_t pid;\n"); 142 f_print(fout, "\tint i;\n"); 143 f_print(fout, "\tchar mname[FMNAMESZ + 1];\n\n"); 144 write_pm_most(infile, netflag); 145 f_print(fout, "\telse {\n"); 146 write_rpc_svc_fg(infile, "\t\t"); 147 f_print(fout, "\t}\n"); 148 } else { 149 f_print(fout, "\tSVCXPRT *%s;\n", TRANSP); 150 f_print(fout, "\n"); 151 print_pmapunset("\t"); 152 } 153 } 154 155 if (logflag && !inetdflag) { 156 open_log_file(infile, "\t"); 157 } 158 } 159 /* 160 * write a registration for the given transport 161 */ 162 void 163 write_netid_register(transp) 164 char *transp; 165 { 166 list *l; 167 definition *def; 168 version_list *vp; 169 char *sp; 170 char tmpbuf[32]; 171 172 sp = ""; 173 f_print(fout, "\n"); 174 f_print(fout, "%s\tnconf = getnetconfigent(\"%s\");\n", sp, transp); 175 f_print(fout, "%s\tif (nconf == NULL) {\n", sp); 176 (void) sprintf(_errbuf, "cannot find %s netid.", transp); 177 sprintf(tmpbuf, "%s\t\t", sp); 178 print_err_message(tmpbuf); 179 f_print(fout, "%s\t\texit(1);\n", sp); 180 f_print(fout, "%s\t}\n", sp); 181 f_print(fout, "%s\t%s = svc_tli_create(RPC_ANYFD, nconf, 0, 0, 0);\n", 182 sp, TRANSP); 183 f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP); 184 (void) sprintf(_errbuf, "cannot create %s service.", transp); 185 print_err_message(tmpbuf); 186 f_print(fout, "%s\t\texit(1);\n", sp); 187 f_print(fout, "%s\t}\n", sp); 188 189 for (l = defined; l != NULL; l = l->next) { 190 def = (definition *) l->val; 191 if (def->def_kind != DEF_PROGRAM) { 192 continue; 193 } 194 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 195 f_print(fout, 196 "%s\t(void) rpcb_unset(%s, %s, nconf);\n", 197 sp, def->def_name, vp->vers_name); 198 f_print(fout, 199 "%s\tif (!svc_reg(%s, %s, %s, ", 200 sp, TRANSP, def->def_name, vp->vers_name); 201 pvname(def->def_name, vp->vers_num); 202 f_print(fout, ", nconf)) {\n"); 203 (void) sprintf(_errbuf, "unable to register (%s, %s, %s).", 204 def->def_name, vp->vers_name, transp); 205 print_err_message(tmpbuf); 206 f_print(fout, "%s\t\texit(1);\n", sp); 207 f_print(fout, "%s\t}\n", sp); 208 } 209 } 210 f_print(fout, "%s\tfreenetconfigent(nconf);\n", sp); 211 } 212 /* 213 * write a registration for the given transport for TLI 214 */ 215 void 216 write_nettype_register(transp) 217 char *transp; 218 { 219 list *l; 220 definition *def; 221 version_list *vp; 222 223 for (l = defined; l != NULL; l = l->next) { 224 def = (definition *) l->val; 225 if (def->def_kind != DEF_PROGRAM) { 226 continue; 227 } 228 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 229 f_print(fout, "\tif (!svc_create("); 230 pvname(def->def_name, vp->vers_num); 231 f_print(fout, ", %s, %s, \"%s\")) {\n ", 232 def->def_name, vp->vers_name, transp); 233 (void) sprintf(_errbuf, 234 "unable to create (%s, %s) for %s.", 235 def->def_name, vp->vers_name, transp); 236 print_err_message("\t\t"); 237 f_print(fout, "\t\texit(1);\n"); 238 f_print(fout, "\t}\n"); 239 } 240 } 241 } 242 /* 243 * write the rest of the service 244 */ 245 void 246 write_rest() 247 { 248 f_print(fout, "\n"); 249 if (inetdflag) { 250 f_print(fout, "\tif (%s == (SVCXPRT *)NULL) {\n", TRANSP); 251 (void) sprintf(_errbuf, "could not create a handle"); 252 print_err_message("\t\t"); 253 f_print(fout, "\t\texit(1);\n"); 254 f_print(fout, "\t}\n"); 255 if (timerflag) { 256 f_print(fout, "\tif (_rpcpmstart) {\n"); 257 f_print(fout, 258 "\t\t(void) signal(SIGALRM, %s closedown);\n", 259 Cflag ? "(SIG_PF)" : "(void(*)())"); 260 f_print(fout, "\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 261 f_print(fout, "\t}\n"); 262 } 263 } 264 f_print(fout, "\tsvc_run();\n"); 265 (void) sprintf(_errbuf, "svc_run returned"); 266 print_err_message("\t"); 267 f_print(fout, "\texit(1);\n"); 268 f_print(fout, "\t/* NOTREACHED */\n"); 269 f_print(fout, "}\n"); 270 } 271 272 void 273 write_programs(storage) 274 char *storage; 275 { 276 list *l; 277 definition *def; 278 279 /* write out stubs for procedure definitions */ 280 for (l = defined; l != NULL; l = l->next) { 281 def = (definition *) l->val; 282 if (def->def_kind == DEF_PROGRAM) { 283 write_real_program(def); 284 } 285 } 286 287 /* write out dispatcher for each program */ 288 for (l = defined; l != NULL; l = l->next) { 289 def = (definition *) l->val; 290 if (def->def_kind == DEF_PROGRAM) { 291 write_program(def, storage); 292 } 293 } 294 295 296 } 297 /* write out definition of internal function (e.g. _printmsg_1(...)) 298 which calls server's defintion of actual function (e.g. printmsg_1(...)). 299 Unpacks single user argument of printmsg_1 to call-by-value format 300 expected by printmsg_1. */ 301 static void 302 write_real_program(def) 303 definition *def; 304 { 305 version_list *vp; 306 proc_list *proc; 307 decl_list *l; 308 309 if (!newstyle) 310 return; /* not needed for old style */ 311 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 312 for (proc = vp->procs; proc != NULL; proc = proc->next) { 313 f_print(fout, "\n"); 314 internal_proctype(proc); 315 f_print(fout, "\n_"); 316 pvname(proc->proc_name, vp->vers_num); 317 if (Cflag) { 318 f_print(fout, "("); 319 /* arg name */ 320 if (proc->arg_num > 1) 321 f_print(fout, "%s", 322 proc->args.argname); 323 else 324 ptype(proc->args.decls->decl.prefix, 325 proc->args.decls->decl.type, 0); 326 f_print(fout, " *argp, struct svc_req *%s)\n", 327 RQSTP); 328 } else { 329 f_print(fout, "(argp, %s)\n", RQSTP); 330 /* arg name */ 331 if (proc->arg_num > 1) 332 f_print(fout, "\t%s *argp;\n", proc->args.argname); 333 else { 334 f_print(fout, "\t"); 335 ptype(proc->args.decls->decl.prefix, 336 proc->args.decls->decl.type, 0); 337 f_print(fout, " *argp;\n"); 338 } 339 f_print(fout, " struct svc_req *%s;\n", RQSTP); 340 } 341 342 f_print(fout, "{\n"); 343 f_print(fout, "\treturn("); 344 pvname_svc(proc->proc_name, vp->vers_num); 345 f_print(fout, "("); 346 if (proc->arg_num < 2) { /* single argument */ 347 if (!streq(proc->args.decls->decl.type, "void")) 348 f_print(fout, "*argp, "); /* non-void */ 349 } else { 350 for (l = proc->args.decls; l != NULL; l = l->next) 351 f_print(fout, "argp->%s, ", l->decl.name); 352 } 353 f_print(fout, "%s));\n}\n", RQSTP); 354 } 355 } 356 } 357 358 static void 359 write_program(def, storage) 360 definition *def; 361 char *storage; 362 { 363 version_list *vp; 364 proc_list *proc; 365 int filled; 366 367 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 368 if (Cflag) { 369 f_print(fout, "\n"); 370 if (storage != NULL) { 371 f_print(fout, "%s ", storage); 372 } 373 f_print(fout, "void "); 374 pvname(def->def_name, vp->vers_num); 375 f_print(fout, "(struct svc_req *%s, ", RQSTP); 376 f_print(fout, "SVCXPRT *%s);\n", TRANSP); 377 } 378 f_print(fout, "\n"); 379 if (storage != NULL) { 380 f_print(fout, "%s ", storage); 381 } 382 f_print(fout, "void\n"); 383 pvname(def->def_name, vp->vers_num); 384 385 if (Cflag) { 386 f_print(fout, "(struct svc_req *%s, ", RQSTP); 387 f_print(fout, "SVCXPRT *%s)\n", TRANSP); 388 } else { 389 f_print(fout, "(%s, %s)\n", RQSTP, TRANSP); 390 f_print(fout, " struct svc_req *%s;\n", RQSTP); 391 f_print(fout, " SVCXPRT *%s;\n", TRANSP); 392 } 393 394 f_print(fout, "{\n"); 395 396 filled = 0; 397 f_print(fout, "\tunion {\n"); 398 for (proc = vp->procs; proc != NULL; proc = proc->next) { 399 if (proc->arg_num < 2) { /* single argument */ 400 if (streq(proc->args.decls->decl.type, 401 "void")) { 402 continue; 403 } 404 filled = 1; 405 f_print(fout, "\t\t"); 406 ptype(proc->args.decls->decl.prefix, 407 proc->args.decls->decl.type, 0); 408 pvname(proc->proc_name, vp->vers_num); 409 f_print(fout, "_arg;\n"); 410 411 } else { 412 filled = 1; 413 f_print(fout, "\t\t%s", proc->args.argname); 414 f_print(fout, " "); 415 pvname(proc->proc_name, vp->vers_num); 416 f_print(fout, "_arg;\n"); 417 } 418 } 419 if (!filled) { 420 f_print(fout, "\t\tint fill;\n"); 421 } 422 f_print(fout, "\t} %s;\n", ARG); 423 f_print(fout, "\tchar *%s;\n", RESULT); 424 425 if (Cflag) { 426 f_print(fout, "\txdrproc_t xdr_%s, xdr_%s;\n", ARG, RESULT); 427 f_print(fout, 428 "\tchar *(*%s)(char *, struct svc_req *);\n", 429 ROUTINE); 430 } else { 431 f_print(fout, "\tbool_t (*xdr_%s)(), (*xdr_%s)();\n", ARG, RESULT); 432 f_print(fout, "\tchar *(*%s)();\n", ROUTINE); 433 } 434 435 f_print(fout, "\n"); 436 437 if (callerflag) 438 f_print(fout, "\tcaller = transp;\n"); /* EVAS */ 439 if (timerflag) 440 f_print(fout, "\t_rpcsvcdirty = 1;\n"); 441 f_print(fout, "\tswitch (%s->rq_proc) {\n", RQSTP); 442 if (!nullproc(vp->procs)) { 443 f_print(fout, "\tcase NULLPROC:\n"); 444 if (Cflag) { 445 f_print(fout, 446 "\t\t(void) svc_sendreply(%s, (xdrproc_t) xdr_void, (char *)NULL);\n", TRANSP); 447 } else { 448 f_print(fout, 449 "\t\t(void) svc_sendreply(%s, xdr_void, (char *)NULL);\n", 450 TRANSP); 451 } 452 print_return("\t\t"); 453 f_print(fout, "\n"); 454 } 455 for (proc = vp->procs; proc != NULL; proc = proc->next) { 456 f_print(fout, "\tcase %s:\n", proc->proc_name); 457 if (proc->arg_num < 2) { /* single argument */ 458 p_xdrfunc(ARG, proc->args.decls->decl.type); 459 } else { 460 p_xdrfunc(ARG, proc->args.argname); 461 } 462 p_xdrfunc(RESULT, proc->res_type); 463 if (Cflag) 464 f_print(fout, 465 "\t\t%s = (char *(*)(char *, struct svc_req *)) ", 466 ROUTINE); 467 else 468 f_print(fout, "\t\t%s = (char *(*)()) ", ROUTINE); 469 470 if (newstyle) { /* new style: calls internal routine */ 471 f_print(fout, "_"); 472 } 473 if (!newstyle) 474 pvname_svc(proc->proc_name, vp->vers_num); 475 else 476 pvname(proc->proc_name, vp->vers_num); 477 f_print(fout, ";\n"); 478 f_print(fout, "\t\tbreak;\n\n"); 479 } 480 f_print(fout, "\tdefault:\n"); 481 printerr("noproc", TRANSP); 482 print_return("\t\t"); 483 f_print(fout, "\t}\n"); 484 485 f_print(fout, "\t(void) memset((char *)&%s, 0, sizeof (%s));\n", ARG, ARG); 486 printif("getargs", TRANSP, "(caddr_t) &", ARG); 487 printerr("decode", TRANSP); 488 print_return("\t\t"); 489 f_print(fout, "\t}\n"); 490 491 if (Cflag) 492 f_print(fout, "\t%s = (*%s)((char *)&%s, %s);\n", 493 RESULT, ROUTINE, ARG, RQSTP); 494 else 495 f_print(fout, "\t%s = (*%s)(&%s, %s);\n", 496 RESULT, ROUTINE, ARG, RQSTP); 497 f_print(fout, 498 "\tif (%s != NULL && !svc_sendreply(%s, xdr_%s, %s)) {\n", 499 RESULT, TRANSP, RESULT, RESULT); 500 printerr("systemerr", TRANSP); 501 f_print(fout, "\t}\n"); 502 503 printif("freeargs", TRANSP, "(caddr_t) &", ARG); 504 (void) sprintf(_errbuf, "unable to free arguments"); 505 print_err_message("\t\t"); 506 f_print(fout, "\t\texit(1);\n"); 507 f_print(fout, "\t}\n"); 508 print_return("\t"); 509 f_print(fout, "}\n"); 510 } 511 } 512 513 static void 514 printerr(err, transp) 515 char *err; 516 char *transp; 517 { 518 f_print(fout, "\t\tsvcerr_%s(%s);\n", err, transp); 519 } 520 521 static void 522 printif(proc, transp, prefix, arg) 523 char *proc; 524 char *transp; 525 char *prefix; 526 char *arg; 527 { 528 f_print(fout, "\tif (!svc_%s(%s, xdr_%s, %s%s)) {\n", 529 proc, transp, arg, prefix, arg); 530 } 531 532 int 533 nullproc(proc) 534 proc_list *proc; 535 { 536 for (; proc != NULL; proc = proc->next) { 537 if (streq(proc->proc_num, "0")) { 538 return (1); 539 } 540 } 541 return (0); 542 } 543 544 static void 545 write_inetmost(infile) 546 char *infile; 547 { 548 f_print(fout, "\tSVCXPRT *%s = NULL;\n", TRANSP); 549 f_print(fout, "\tint sock;\n"); 550 f_print(fout, "\tint proto = 0;\n"); 551 f_print(fout, "\tstruct sockaddr_in saddr;\n"); 552 f_print(fout, "\tint asize = sizeof (saddr);\n"); 553 f_print(fout, "\n"); 554 f_print(fout, 555 "\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n"); 556 f_print(fout, "\t\tint ssize = sizeof (int);\n\n"); 557 f_print(fout, "\t\tif (saddr.sin_family != AF_INET)\n"); 558 f_print(fout, "\t\t\texit(1);\n"); 559 f_print(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n"); 560 f_print(fout, "\t\t\t\t(char *)&_rpcfdtype, &ssize) == -1)\n"); 561 f_print(fout, "\t\t\texit(1);\n"); 562 f_print(fout, "\t\tsock = 0;\n"); 563 f_print(fout, "\t\t_rpcpmstart = 1;\n"); 564 f_print(fout, "\t\tproto = 0;\n"); 565 open_log_file(infile, "\t\t"); 566 f_print(fout, "\t} else {\n"); 567 write_rpc_svc_fg(infile, "\t\t"); 568 f_print(fout, "\t\tsock = RPC_ANYSOCK;\n"); 569 print_pmapunset("\t\t"); 570 f_print(fout, "\t}\n"); 571 } 572 573 static void 574 print_return(space) 575 char *space; 576 { 577 if (exitnow) 578 f_print(fout, "%sexit(0);\n", space); 579 else { 580 if (timerflag) 581 f_print(fout, "%s_rpcsvcdirty = 0;\n", space); 582 f_print(fout, "%sreturn;\n", space); 583 } 584 } 585 586 static void 587 print_pmapunset(space) 588 char *space; 589 { 590 list *l; 591 definition *def; 592 version_list *vp; 593 594 for (l = defined; l != NULL; l = l->next) { 595 def = (definition *) l->val; 596 if (def->def_kind == DEF_PROGRAM) { 597 for (vp = def->def.pr.versions; vp != NULL; 598 vp = vp->next) { 599 f_print(fout, "%s(void) pmap_unset(%s, %s);\n", 600 space, def->def_name, vp->vers_name); 601 } 602 } 603 } 604 } 605 606 static void 607 print_err_message(space) 608 char *space; 609 { 610 if (logflag) 611 f_print(fout, "%ssyslog(LOG_ERR, \"%s\");\n", space, _errbuf); 612 else 613 if (inetdflag || pmflag) 614 f_print(fout, "%s_msgout(\"%s\");\n", space, _errbuf); 615 else 616 f_print(fout, "%sfprintf(stderr, \"%s\");\n", space, _errbuf); 617 } 618 /* 619 * Write the server auxiliary function ( _msgout, timeout) 620 */ 621 void 622 write_svc_aux(nomain) 623 int nomain; 624 { 625 if (!logflag) 626 write_msg_out(); 627 if (!nomain) 628 write_timeout_func(); 629 if (callerflag) /* EVAS */ 630 write_caller_func(); /* EVAS */ 631 } 632 /* 633 * Write the _msgout function 634 */ 635 void 636 write_msg_out() 637 { 638 f_print(fout, "\n"); 639 f_print(fout, "static\n"); 640 if (!Cflag) { 641 f_print(fout, "void _msgout(msg)\n"); 642 f_print(fout, "\tchar *msg;\n"); 643 } else { 644 f_print(fout, "void _msgout(char* msg)\n"); 645 } 646 f_print(fout, "{\n"); 647 f_print(fout, "#ifdef RPC_SVC_FG\n"); 648 if (inetdflag || pmflag) 649 f_print(fout, "\tif (_rpcpmstart)\n"); 650 f_print(fout, "\t\tsyslog(LOG_ERR, \"%%s\", msg);\n"); 651 f_print(fout, "\telse\n"); 652 f_print(fout, "\t\t(void) fprintf(stderr, \"%%s\\n\", msg);\n"); 653 f_print(fout, "#else\n"); 654 f_print(fout, "\tsyslog(LOG_ERR, \"%%s\", msg);\n"); 655 f_print(fout, "#endif\n"); 656 f_print(fout, "}\n"); 657 } 658 /* 659 * Write the timeout function 660 */ 661 static void 662 write_timeout_func() 663 { 664 if (!timerflag) 665 return; 666 if (Cflag) { 667 f_print(fout, "\n"); 668 f_print(fout, "static void closedown(void);\n"); 669 } 670 f_print(fout, "\n"); 671 f_print(fout, "static void\n"); 672 f_print(fout, "closedown()\n"); 673 f_print(fout, "{\n"); 674 f_print(fout, "\tif (_rpcsvcdirty == 0) {\n"); 675 f_print(fout, "\t\textern fd_set svc_fdset;\n"); 676 f_print(fout, "\t\tstatic int size;\n"); 677 f_print(fout, "\t\tint i, openfd;\n"); 678 if (tirpcflag && pmflag) { 679 f_print(fout, "\t\tstruct t_info tinfo;\n\n"); 680 f_print(fout, "\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n"); 681 } else { 682 f_print(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n"); 683 } 684 f_print(fout, "\t\t\texit(0);\n"); 685 f_print(fout, "\t\tif (size == 0) {\n"); 686 if (tirpcflag) { 687 f_print(fout, "\t\t\tstruct rlimit rl;\n\n"); 688 f_print(fout, "\t\t\trl.rlim_max = 0;\n"); 689 f_print(fout, "\t\t\tgetrlimit(RLIMIT_NOFILE, &rl);\n"); 690 f_print(fout, "\t\t\tif ((size = rl.rlim_max) == 0)\n"); 691 f_print(fout, "\t\t\t\treturn;\n"); 692 } else { 693 f_print(fout, "\t\t\tsize = getdtablesize();\n"); 694 } 695 f_print(fout, "\t\t}\n"); 696 f_print(fout, "\t\tfor (i = 0, openfd = 0; i < size && openfd < 2; i++)\n"); 697 f_print(fout, "\t\t\tif (FD_ISSET(i, &svc_fdset))\n"); 698 f_print(fout, "\t\t\t\topenfd++;\n"); 699 f_print(fout, "\t\tif (openfd <= (_rpcpmstart?0:1))\n"); 700 f_print(fout, "\t\t\texit(0);\n"); 701 f_print(fout, "\t}\n"); 702 f_print(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 703 f_print(fout, "}\n"); 704 } 705 706 static void 707 write_caller_func() 708 { /* EVAS */ 709 #define P(s) f_print(fout, s); 710 711 P("\n"); 712 P("char *svc_caller()\n"); 713 P("{\n"); 714 P(" struct sockaddr_in actual;\n"); 715 P(" struct hostent *hp;\n"); 716 P(" static struct in_addr prev;\n"); 717 P(" static char cname[128];\n\n"); 718 719 P(" actual = *svc_getcaller(caller);\n\n"); 720 721 P(" if (memcmp((char *)&actual.sin_addr, (char *)&prev,\n"); 722 P(" sizeof(struct in_addr)) == 0)\n"); 723 P(" return (cname);\n\n"); 724 725 P(" prev = actual.sin_addr;\n\n"); 726 727 P(" hp = gethostbyaddr((char *) &actual.sin_addr, sizeof(actual.sin_addr), AF_INET);\n"); 728 P(" if (hp == NULL) { /* dummy one up */\n"); 729 P(" extern char *inet_ntoa();\n"); 730 P(" strcpy(cname, inet_ntoa(actual.sin_addr));\n"); 731 P(" } else {\n"); 732 P(" strcpy(cname, hp->h_name);\n"); 733 P(" }\n\n"); 734 735 P(" return (cname);\n"); 736 P("}\n"); 737 738 #undef P 739 } 740 /* 741 * Write the most of port monitor support 742 */ 743 static void 744 write_pm_most(infile, netflag) 745 char *infile; 746 int netflag; 747 { 748 list *l; 749 definition *def; 750 version_list *vp; 751 752 f_print(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n"); 753 f_print(fout, "\t\t(!strcmp(mname, \"sockmod\") ||"); 754 f_print(fout, " !strcmp(mname, \"timod\"))) {\n"); 755 f_print(fout, "\t\tchar *netid;\n"); 756 if (!netflag) { /* Not included by -n option */ 757 f_print(fout, "\t\tstruct netconfig *nconf = NULL;\n"); 758 f_print(fout, "\t\tSVCXPRT *%s;\n", TRANSP); 759 } 760 if (timerflag) 761 f_print(fout, "\t\tint pmclose;\n"); 762 /* not necessary, defined in /usr/include/stdlib */ 763 /* f_print(fout, "\t\textern char *getenv();\n");*/ 764 f_print(fout, "\n"); 765 f_print(fout, "\t\t_rpcpmstart = 1;\n"); 766 if (logflag) 767 open_log_file(infile, "\t\t"); 768 f_print(fout, "\t\tif ((netid = getenv(\"NLSPROVIDER\")) == NULL) {\n"); 769 sprintf(_errbuf, "cannot get transport name"); 770 print_err_message("\t\t\t"); 771 f_print(fout, "\t\t} else if ((nconf = getnetconfigent(netid)) == NULL) {\n"); 772 sprintf(_errbuf, "cannot get transport info"); 773 print_err_message("\t\t\t"); 774 f_print(fout, "\t\t}\n"); 775 /* 776 * A kludgy support for inetd services. Inetd only works with 777 * sockmod, and RPC works only with timod, hence all this jugglery 778 */ 779 f_print(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n"); 780 f_print(fout, "\t\t\tif (ioctl(0, I_POP, 0) || ioctl(0, I_PUSH, \"timod\")) {\n"); 781 sprintf(_errbuf, "could not get the right module"); 782 print_err_message("\t\t\t\t"); 783 f_print(fout, "\t\t\t\texit(1);\n"); 784 f_print(fout, "\t\t\t}\n"); 785 f_print(fout, "\t\t}\n"); 786 if (timerflag) 787 f_print(fout, "\t\tpmclose = (t_getstate(0) != T_DATAXFER);\n"); 788 f_print(fout, "\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) == NULL) {\n", 789 TRANSP); 790 sprintf(_errbuf, "cannot create server handle"); 791 print_err_message("\t\t\t"); 792 f_print(fout, "\t\t\texit(1);\n"); 793 f_print(fout, "\t\t}\n"); 794 f_print(fout, "\t\tif (nconf)\n"); 795 f_print(fout, "\t\t\tfreenetconfigent(nconf);\n"); 796 for (l = defined; l != NULL; l = l->next) { 797 def = (definition *) l->val; 798 if (def->def_kind != DEF_PROGRAM) { 799 continue; 800 } 801 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 802 f_print(fout, 803 "\t\tif (!svc_reg(%s, %s, %s, ", 804 TRANSP, def->def_name, vp->vers_name); 805 pvname(def->def_name, vp->vers_num); 806 f_print(fout, ", 0)) {\n"); 807 (void) sprintf(_errbuf, "unable to register (%s, %s).", 808 def->def_name, vp->vers_name); 809 print_err_message("\t\t\t"); 810 f_print(fout, "\t\t\texit(1);\n"); 811 f_print(fout, "\t\t}\n"); 812 } 813 } 814 if (timerflag) { 815 f_print(fout, "\t\tif (pmclose) {\n"); 816 f_print(fout, "\t\t\t(void) signal(SIGALRM, %s closedown);\n", 817 Cflag ? "(SIG_PF)" : "(void(*)())"); 818 f_print(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 819 f_print(fout, "\t\t}\n"); 820 } 821 f_print(fout, "\t\tsvc_run();\n"); 822 f_print(fout, "\t\texit(1);\n"); 823 f_print(fout, "\t\t/* NOTREACHED */\n"); 824 f_print(fout, "\t}\n"); 825 } 826 /* 827 * Support for backgrounding the server if self started. 828 */ 829 static void 830 write_rpc_svc_fg(infile, sp) 831 char *infile; 832 char *sp; 833 { 834 f_print(fout, "#ifndef RPC_SVC_FG\n"); 835 f_print(fout, "%sint size;\n", sp); 836 if (tirpcflag) 837 f_print(fout, "%sstruct rlimit rl;\n", sp); 838 if (inetdflag) 839 f_print(fout, "%sint pid, i;\n\n", sp); 840 f_print(fout, "%spid = fork();\n", sp); 841 f_print(fout, "%sif (pid < 0) {\n", sp); 842 f_print(fout, "%s\tperror(\"cannot fork\");\n", sp); 843 f_print(fout, "%s\texit(1);\n", sp); 844 f_print(fout, "%s}\n", sp); 845 f_print(fout, "%sif (pid)\n", sp); 846 f_print(fout, "%s\texit(0);\n", sp); 847 /* get number of file descriptors */ 848 if (tirpcflag) { 849 f_print(fout, "%srl.rlim_max = 0;\n", sp); 850 f_print(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp); 851 f_print(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp); 852 f_print(fout, "%s\texit(1);\n", sp); 853 } else { 854 f_print(fout, "%ssize = getdtablesize();\n", sp); 855 } 856 857 f_print(fout, "%sfor (i = 0; i < size; i++)\n", sp); 858 f_print(fout, "%s\t(void) close(i);\n", sp); 859 /* Redirect stderr and stdout to console */ 860 f_print(fout, "%si = open(\"/dev/console\", 2);\n", sp); 861 f_print(fout, "%s(void) dup2(i, 1);\n", sp); 862 f_print(fout, "%s(void) dup2(i, 2);\n", sp); 863 /* This removes control of the controlling terminal */ 864 if (tirpcflag) 865 f_print(fout, "%ssetsid();\n", sp); 866 else { 867 f_print(fout, "%si = open(\"/dev/tty\", 2);\n", sp); 868 f_print(fout, "%sif (i >= 0) {\n", sp); 869 f_print(fout, "%s\t(void) ioctl(i, TIOCNOTTY, (char *)NULL);\n", sp);; 870 f_print(fout, "%s\t(void) close(i);\n", sp); 871 f_print(fout, "%s}\n", sp); 872 } 873 if (!logflag) 874 open_log_file(infile, sp); 875 f_print(fout, "#endif\n"); 876 if (logflag) 877 open_log_file(infile, sp); 878 } 879 880 static void 881 open_log_file(infile, sp) 882 char *infile; 883 char *sp; 884 { 885 char *s, *p; 886 887 s = strrchr(infile, '.'); 888 if (s) 889 *s = '\0'; 890 p = strrchr(infile, '/'); 891 if (p) 892 p++; 893 else 894 p = infile; 895 f_print(fout, "%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, p); 896 if (s) 897 *s = '.'; 898 } 899 900 /* 901 * write a registration for the given transport for Inetd 902 */ 903 void 904 write_inetd_register(transp) 905 char *transp; 906 { 907 list *l; 908 definition *def; 909 version_list *vp; 910 char *sp; 911 int isudp; 912 char tmpbuf[32]; 913 914 if (inetdflag) 915 sp = "\t"; 916 else 917 sp = ""; 918 if (streq(transp, "udp")) 919 isudp = 1; 920 else 921 isudp = 0; 922 f_print(fout, "\n"); 923 if (inetdflag) { 924 f_print(fout, "\tif ((_rpcfdtype == 0) || (_rpcfdtype == %s)) {\n", 925 isudp ? "SOCK_DGRAM" : "SOCK_STREAM"); 926 } 927 if (inetdflag && streq(transp, "tcp")) { 928 f_print(fout, "%s\tif (_rpcpmstart)\n", sp); 929 930 f_print(fout, "%s\t\t%s = svc%s_create(%s", 931 sp, TRANSP, "fd", inetdflag ? "sock" : "RPC_ANYSOCK"); 932 if (!isudp) 933 f_print(fout, ", 0, 0"); 934 f_print(fout, ");\n"); 935 936 f_print(fout, "%s\telse\n", sp); 937 938 f_print(fout, "%s\t\t%s = svc%s_create(%s", 939 sp, TRANSP, transp, inetdflag ? "sock" : "RPC_ANYSOCK"); 940 if (!isudp) 941 f_print(fout, ", 0, 0"); 942 f_print(fout, ");\n"); 943 944 } else { 945 f_print(fout, "%s\t%s = svc%s_create(%s", 946 sp, TRANSP, transp, inetdflag ? "sock" : "RPC_ANYSOCK"); 947 if (!isudp) 948 f_print(fout, ", 0, 0"); 949 f_print(fout, ");\n"); 950 } 951 f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP); 952 (void) sprintf(_errbuf, "cannot create %s service.", transp); 953 (void) sprintf(tmpbuf, "%s\t\t", sp); 954 print_err_message(tmpbuf); 955 f_print(fout, "%s\t\texit(1);\n", sp); 956 f_print(fout, "%s\t}\n", sp); 957 958 if (inetdflag) { 959 f_print(fout, "%s\tif (!_rpcpmstart)\n\t", sp); 960 f_print(fout, "%s\tproto = IPPROTO_%s;\n", 961 sp, isudp ? "UDP" : "TCP"); 962 } 963 for (l = defined; l != NULL; l = l->next) { 964 def = (definition *) l->val; 965 if (def->def_kind != DEF_PROGRAM) { 966 continue; 967 } 968 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 969 f_print(fout, "%s\tif (!svc_register(%s, %s, %s, ", 970 sp, TRANSP, def->def_name, vp->vers_name); 971 pvname(def->def_name, vp->vers_num); 972 if (inetdflag) 973 f_print(fout, ", proto)) {\n"); 974 else 975 f_print(fout, ", IPPROTO_%s)) {\n", 976 isudp ? "UDP" : "TCP"); 977 (void) sprintf(_errbuf, "unable to register (%s, %s, %s).", 978 def->def_name, vp->vers_name, transp); 979 print_err_message(tmpbuf); 980 f_print(fout, "%s\t\texit(1);\n", sp); 981 f_print(fout, "%s\t}\n", sp); 982 } 983 } 984 if (inetdflag) 985 f_print(fout, "\t}\n"); 986 } 987
Indexes created Tue Sep 23 14:10:03 GMT 2025