rpc_svcout.c revision 1.25
1 /* $NetBSD: rpc_svcout.c,v 1.25 2013/12/15 00:40:17 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 #if HAVE_NBTOOL_CONFIG_H 33 #include "nbtool_config.h" 34 #endif 35 36 #include <sys/cdefs.h> 37 #if defined(__RCSID) && !defined(lint) 38 #if 0 39 static char sccsid[] = "@(#)rpc_svcout.c 1.29 89/03/30 (C) 1987 SMI"; 40 #else 41 __RCSID("$NetBSD: rpc_svcout.c,v 1.25 2013/12/15 00:40:17 christos Exp $"); 42 #endif 43 #endif 44 45 /* 46 * rpc_svcout.c, Server-skeleton outputter for the RPC protocol compiler 47 */ 48 #include <stdio.h> 49 #include <string.h> 50 #include "rpc_scan.h" 51 #include "rpc_parse.h" 52 #include "rpc_util.h" 53 54 static char RQSTP[] = "rqstp"; 55 static char TRANSP[] = "transp"; 56 static char ARG[] = "argument"; 57 static char RESULT[] = "result"; 58 static char ROUTINE[] = "local"; 59 60 static void p_xdrfunc(const char *, const char *); 61 static void internal_proctype(proc_list *); 62 static void write_real_program(definition *); 63 static void write_program(definition *, const char *); 64 static void printerr(const char *, const char *); 65 static void printif(const char *, const char *, const char *, const char *); 66 static void write_inetmost(char *); 67 static void print_return(const char *); 68 static void print_pmapunset(const char *); 69 static void print_err_message(const char *); 70 static void write_timeout_func(void); 71 static void write_caller_func(void); 72 static void write_pm_most(char *, int); 73 static void write_rpc_svc_fg(char *, const char *); 74 static void open_log_file(char *, const char *); 75 static const char *aster(const char *); 76 77 char _errbuf[256]; /* For all messages */ 78 79 static void 80 p_xdrfunc(const char *rname, const char *typename) 81 { 82 f_print(fout, "\t\txdr_%s = (xdrproc_t)xdr_%s;\n", rname, 83 stringfix(typename)); 84 } 85 86 static void 87 internal_proctype(proc_list *plist) 88 { 89 f_print(fout, "static "); 90 ptype(plist->res_prefix, plist->res_type, 1); 91 if (!Mflag) 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(char *infile /* our name */, int netflag, int nomain) 101 { 102 if (inetdflag || pmflag) { 103 const char *var_type; 104 var_type = (nomain ? "" : "static "); 105 f_print(fout, "%sint _rpcpmstart;", var_type); 106 f_print(fout, "\t\t/* Started by a port monitor ? */\n"); 107 f_print(fout, "%sint _rpcfdtype;", var_type); 108 f_print(fout, "\t\t/* Whether Stream or Datagram ? */\n"); 109 if (timerflag) { 110 f_print(fout, "%sint _rpcsvcdirty;", var_type); 111 f_print(fout, "\t/* Still serving ? */\n"); 112 } 113 write_svc_aux(nomain); 114 } 115 /* write out dispatcher and stubs */ 116 write_programs(nomain ? NULL : "static"); 117 118 if (nomain) 119 return; 120 121 f_print(fout, "\nint\n"); 122 f_print(fout, "main(int argc, char *argv[])\n"); 123 f_print(fout, "{\n"); 124 if (inetdflag) { 125 write_inetmost(infile); /* Includes call to write_rpc_svc_fg() */ 126 } else { 127 if (tirpcflag) { 128 if (netflag) { 129 f_print(fout, "\tSVCXPRT *%s;\n", TRANSP); 130 f_print(fout, "\tstruct netconfig *nconf = NULL;\n"); 131 } 132 f_print(fout, "\tpid_t pid;\n"); 133 f_print(fout, "\tint i;\n"); 134 f_print(fout, "\tchar mname[FMNAMESZ + 1];\n\n"); 135 write_pm_most(infile, netflag); 136 f_print(fout, "\telse {\n"); 137 write_rpc_svc_fg(infile, "\t\t"); 138 f_print(fout, "\t}\n"); 139 } else { 140 f_print(fout, "\tSVCXPRT *%s;\n", TRANSP); 141 f_print(fout, "\n"); 142 print_pmapunset("\t"); 143 } 144 } 145 146 if (logflag && !inetdflag) { 147 open_log_file(infile, "\t"); 148 } 149 } 150 /* 151 * write a registration for the given transport 152 */ 153 void 154 write_netid_register(const char *transp) 155 { 156 list *l; 157 definition *def; 158 version_list *vp; 159 const char *sp; 160 char tmpbuf[32]; 161 162 sp = ""; 163 f_print(fout, "\n"); 164 f_print(fout, "%s\tnconf = getnetconfigent(\"%s\");\n", sp, transp); 165 f_print(fout, "%s\tif (nconf == NULL) {\n", sp); 166 (void) sprintf(_errbuf, "cannot find %s netid.", transp); 167 sprintf(tmpbuf, "%s\t\t", sp); 168 print_err_message(tmpbuf); 169 f_print(fout, "%s\t\texit(1);\n", sp); 170 f_print(fout, "%s\t}\n", sp); 171 f_print(fout, "%s\t%s = svc_tli_create(RPC_ANYFD, nconf, 0, 0, 0);\n", 172 sp, TRANSP); 173 f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP); 174 (void) sprintf(_errbuf, "cannot create %s service.", transp); 175 print_err_message(tmpbuf); 176 f_print(fout, "%s\t\texit(1);\n", sp); 177 f_print(fout, "%s\t}\n", sp); 178 179 for (l = defined; l != NULL; l = l->next) { 180 def = (definition *) l->val; 181 if (def->def_kind != DEF_PROGRAM) { 182 continue; 183 } 184 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 185 f_print(fout, 186 "%s\t(void) rpcb_unset(%s, %s, nconf);\n", 187 sp, def->def_name, vp->vers_name); 188 f_print(fout, 189 "%s\tif (!svc_reg(%s, %s, %s, ", 190 sp, TRANSP, def->def_name, vp->vers_name); 191 pvname(def->def_name, vp->vers_num); 192 f_print(fout, ", nconf)) {\n"); 193 (void) sprintf(_errbuf, "unable to register (%s, %s, %s).", 194 def->def_name, vp->vers_name, transp); 195 print_err_message(tmpbuf); 196 f_print(fout, "%s\t\texit(1);\n", sp); 197 f_print(fout, "%s\t}\n", sp); 198 } 199 } 200 f_print(fout, "%s\tfreenetconfigent(nconf);\n", sp); 201 } 202 /* 203 * write a registration for the given transport for TLI 204 */ 205 void 206 write_nettype_register(const 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 * write the rest of the service 233 */ 234 void 235 write_rest(void) 236 { 237 f_print(fout, "\n"); 238 if (inetdflag) { 239 f_print(fout, "\tif (%s == NULL) {\n", TRANSP); 240 (void) sprintf(_errbuf, "could not create a handle"); 241 print_err_message("\t\t"); 242 f_print(fout, "\t\texit(1);\n"); 243 f_print(fout, "\t}\n"); 244 if (timerflag) { 245 f_print(fout, "\tif (_rpcpmstart) {\n"); 246 f_print(fout, 247 "\t\t(void) signal(SIGALRM, (SIG_PF)closedown);\n"); 248 f_print(fout, "\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 249 f_print(fout, "\t}\n"); 250 } 251 } 252 f_print(fout, "\tsvc_run();\n"); 253 (void) sprintf(_errbuf, "svc_run returned"); 254 print_err_message("\t"); 255 f_print(fout, "\texit(1);\n"); 256 f_print(fout, "\t/* NOTREACHED */\n"); 257 f_print(fout, "}\n"); 258 } 259 260 void 261 write_programs(const char *storage) 262 { 263 list *l; 264 definition *def; 265 266 /* write out stubs for procedure definitions */ 267 for (l = defined; l != NULL; l = l->next) { 268 def = (definition *) l->val; 269 if (def->def_kind == DEF_PROGRAM) { 270 write_real_program(def); 271 } 272 } 273 274 /* write out dispatcher for each program */ 275 for (l = defined; l != NULL; l = l->next) { 276 def = (definition *) l->val; 277 if (def->def_kind == DEF_PROGRAM) { 278 write_program(def, storage); 279 } 280 } 281 282 283 } 284 /* write out definition of internal function (e.g. _printmsg_1(...)) 285 which calls server's definition of actual function (e.g. printmsg_1(...)). 286 Unpacks single user argument of printmsg_1 to call-by-value format 287 expected by printmsg_1. */ 288 static void 289 write_real_program(definition *def) 290 { 291 version_list *vp; 292 proc_list *proc; 293 decl_list *l; 294 295 if (!newstyle) 296 return; /* not needed for old style */ 297 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 298 for (proc = vp->procs; proc != NULL; proc = proc->next) { 299 f_print(fout, "\n"); 300 internal_proctype(proc); 301 f_print(fout, "\n_"); 302 pvname(proc->proc_name, vp->vers_num); 303 f_print(fout, "("); 304 /* arg name */ 305 if (proc->arg_num > 1) 306 f_print(fout, "%s ", 307 proc->args.argname); 308 else 309 ptype(proc->args.decls->decl.prefix, 310 proc->args.decls->decl.type, 0); 311 f_print(fout, "*argp, "); 312 if (Mflag) { 313 if (streq(proc->res_type, "void")) 314 f_print(fout, "char "); 315 else 316 ptype(proc->res_prefix, 317 proc->res_type, 0); 318 f_print(fout, "%sresult, ", 319 aster(proc->res_type)); 320 } 321 f_print(fout, "struct svc_req *%s)\n", RQSTP); 322 f_print(fout, "{\n"); 323 f_print(fout, "\treturn ("); 324 pvname_svc(proc->proc_name, vp->vers_num); 325 f_print(fout, "("); 326 if (proc->arg_num < 2) { /* single argument */ 327 if (!streq(proc->args.decls->decl.type, "void")) 328 f_print(fout, "*argp, "); /* non-void */ 329 } else { 330 for (l = proc->args.decls; l != NULL; l = l->next) 331 f_print(fout, "argp->%s, ", l->decl.name); 332 } 333 f_print(fout, "%s));\n}\n", RQSTP); 334 } 335 } 336 } 337 338 static void 339 write_program(definition *def, const char *storage) 340 { 341 version_list *vp; 342 proc_list *proc; 343 int filled; 344 345 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 346 f_print(fout, "\n"); 347 if (storage != NULL) { 348 f_print(fout, "%s ", storage); 349 } 350 f_print(fout, "void "); 351 pvname(def->def_name, vp->vers_num); 352 f_print(fout, "(struct svc_req *%s, ", RQSTP); 353 f_print(fout, "SVCXPRT *%s);\n", TRANSP); 354 f_print(fout, "\n"); 355 if (storage != NULL) { 356 f_print(fout, "%s ", storage); 357 } 358 f_print(fout, "void\n"); 359 pvname(def->def_name, vp->vers_num); 360 361 f_print(fout, "(struct svc_req *%s, ", RQSTP); 362 f_print(fout, "SVCXPRT *%s)\n", TRANSP); 363 f_print(fout, "{\n"); 364 365 filled = 0; 366 f_print(fout, "\tunion {\n"); 367 for (proc = vp->procs; proc != NULL; proc = proc->next) { 368 if (proc->arg_num < 2) { /* single argument */ 369 if (streq(proc->args.decls->decl.type, 370 "void")) { 371 continue; 372 } 373 filled = 1; 374 f_print(fout, "\t\t"); 375 ptype(proc->args.decls->decl.prefix, 376 proc->args.decls->decl.type, 0); 377 pvname(proc->proc_name, vp->vers_num); 378 f_print(fout, "_arg;\n"); 379 380 } else { 381 filled = 1; 382 f_print(fout, "\t\t%s", proc->args.argname); 383 f_print(fout, " "); 384 pvname(proc->proc_name, vp->vers_num); 385 f_print(fout, "_arg;\n"); 386 } 387 } 388 if (!filled) { 389 f_print(fout, "\t\tint fill;\n"); 390 } 391 f_print(fout, "\t} %s;\n", ARG); 392 if (Mflag) { 393 f_print(fout, "\tunion {\n"); 394 for (proc = vp->procs; proc != NULL; proc = proc->next) { 395 f_print(fout, "\t\t"); 396 if (streq(proc->res_type, "void")) 397 f_print(fout, "char "); 398 else 399 ptype(proc->res_prefix, proc->res_type, 400 1); 401 pvname(proc->proc_name, vp->vers_num); 402 f_print(fout, "_res;\n"); 403 } 404 f_print(fout, "\t} %s;\n", RESULT); 405 f_print(fout, "\tbool_t retval;\n"); 406 } else 407 f_print(fout, "\tchar *%s;\n", RESULT); 408 409 f_print(fout, "\txdrproc_t xdr_%s, xdr_%s;\n", ARG, RESULT); 410 if (Mflag) 411 f_print(fout, 412 "\tbool_t (*%s)(char *, void *, struct svc_req *);\n", 413 ROUTINE); 414 else 415 f_print(fout, 416 "\tchar *(*%s)(char *, struct svc_req *);\n", 417 ROUTINE); 418 419 f_print(fout, "\n"); 420 421 if (callerflag) 422 f_print(fout, "\tcaller = transp;\n"); /* EVAS */ 423 if (timerflag) 424 f_print(fout, "\t_rpcsvcdirty = 1;\n"); 425 f_print(fout, "\tswitch (%s->rq_proc) {\n", RQSTP); 426 if (!nullproc(vp->procs)) { 427 f_print(fout, "\tcase NULLPROC:\n"); 428 f_print(fout, 429 "\t\t(void) svc_sendreply(%s, (xdrproc_t)xdr_void, NULL);\n", TRANSP); 430 print_return("\t\t"); 431 f_print(fout, "\n"); 432 } 433 for (proc = vp->procs; proc != NULL; proc = proc->next) { 434 f_print(fout, "\tcase %s:\n", proc->proc_name); 435 if (proc->arg_num < 2) { /* single argument */ 436 p_xdrfunc(ARG, proc->args.decls->decl.type); 437 } else { 438 p_xdrfunc(ARG, proc->args.argname); 439 } 440 p_xdrfunc(RESULT, proc->res_type); 441 if (Mflag) 442 f_print(fout, 443 "\t\t%s = (bool_t (*)(char *, void *, struct svc_req *))", 444 ROUTINE); 445 else 446 f_print(fout, 447 "\t\t%s = (char *(*)(char *, struct svc_req *))", 448 ROUTINE); 449 450 if (newstyle) /* new style: calls internal routine */ 451 f_print(fout, "_"); 452 pvname_svc(proc->proc_name, vp->vers_num); 453 f_print(fout, ";\n"); 454 f_print(fout, "\t\tbreak;\n\n"); 455 } 456 f_print(fout, "\tdefault:\n"); 457 printerr("noproc", TRANSP); 458 print_return("\t\t"); 459 f_print(fout, "\t}\n"); 460 461 f_print(fout, "\t(void) memset(&%s, 0, sizeof(%s));\n", ARG, ARG); 462 printif("getargs", TRANSP, "(caddr_t)&", ARG); 463 printerr("decode", TRANSP); 464 print_return("\t\t"); 465 f_print(fout, "\t}\n"); 466 467 if (Mflag) 468 f_print(fout, "\tretval = (*%s)((char *)&%s, (void *)&%s, %s);\n", 469 ROUTINE, ARG, RESULT, RQSTP); 470 else 471 f_print(fout, "\t%s = (*%s)((char *)&%s, %s);\n", 472 RESULT, ROUTINE, ARG, RQSTP); 473 if (Mflag) 474 f_print(fout, 475 "\tif (retval > 0 && !svc_sendreply(%s, xdr_%s, (char *)&%s)) {\n", 476 TRANSP, RESULT, RESULT); 477 else 478 f_print(fout, 479 "\tif (%s != NULL && !svc_sendreply(%s, xdr_%s, %s)) {\n", 480 RESULT, TRANSP, RESULT, RESULT); 481 printerr("systemerr", TRANSP); 482 f_print(fout, "\t}\n"); 483 484 printif("freeargs", TRANSP, "(caddr_t)&", ARG); 485 (void) sprintf(_errbuf, "unable to free arguments"); 486 print_err_message("\t\t"); 487 f_print(fout, "\t\texit(1);\n"); 488 f_print(fout, "\t}\n"); 489 490 if (Mflag) { 491 f_print(fout, "\tif (!"); 492 pvname(def->def_name, vp->vers_num); 493 f_print(fout, "_freeresult"); 494 f_print(fout, "(%s, xdr_%s, (caddr_t)&%s)) {\n", 495 TRANSP, RESULT, RESULT); 496 (void) sprintf(_errbuf, "unable to free results"); 497 print_err_message("\t\t"); 498 f_print(fout, "\t\texit(1);\n"); 499 f_print(fout, "\t}\n"); 500 } 501 502 print_return("\t"); 503 f_print(fout, "}\n"); 504 } 505 } 506 507 static void 508 printerr(const char *err, const char *transp) 509 { 510 f_print(fout, "\t\tsvcerr_%s(%s);\n", err, transp); 511 } 512 513 static void 514 printif(const char *proc, const char *transp, const char *prefix, const char *arg) 515 { 516 f_print(fout, "\tif (!svc_%s(%s, xdr_%s, %s%s)) {\n", 517 proc, transp, arg, prefix, arg); 518 } 519 520 int 521 nullproc(proc_list *proc) 522 { 523 for (; proc != NULL; proc = proc->next) { 524 if (streq(proc->proc_num, "0")) { 525 return (1); 526 } 527 } 528 return (0); 529 } 530 531 static void 532 write_inetmost(char *infile) 533 { 534 f_print(fout, "\tSVCXPRT *%s = NULL;\n", TRANSP); 535 f_print(fout, "\tint sock;\n"); 536 f_print(fout, "\tint proto = 0;\n"); 537 f_print(fout, "\tstruct sockaddr_in saddr;\n"); 538 f_print(fout, "\tsocklen_t asize = (socklen_t)sizeof(saddr);\n"); 539 f_print(fout, "\n"); 540 f_print(fout, 541 "\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n"); 542 f_print(fout, "\t\tsocklen_t ssize = (socklen_t)sizeof(int);\n\n"); 543 f_print(fout, "\t\tif (saddr.sin_family != AF_INET)\n"); 544 f_print(fout, "\t\t\texit(1);\n"); 545 f_print(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n"); 546 f_print(fout, "\t\t\t\t(void *)&_rpcfdtype, &ssize) == -1)\n"); 547 f_print(fout, "\t\t\texit(1);\n"); 548 f_print(fout, "\t\tsock = 0;\n"); 549 f_print(fout, "\t\t_rpcpmstart = 1;\n"); 550 f_print(fout, "\t\tproto = 0;\n"); 551 open_log_file(infile, "\t\t"); 552 f_print(fout, "\t} else {\n"); 553 write_rpc_svc_fg(infile, "\t\t"); 554 f_print(fout, "\t\tsock = RPC_ANYSOCK;\n"); 555 print_pmapunset("\t\t"); 556 f_print(fout, "\t}\n"); 557 } 558 559 static void 560 print_return(const char *space) 561 { 562 if (exitnow) 563 f_print(fout, "%sexit(0);\n", space); 564 else { 565 if (timerflag) 566 f_print(fout, "%s_rpcsvcdirty = 0;\n", space); 567 f_print(fout, "%sreturn;\n", space); 568 } 569 } 570 571 static void 572 print_pmapunset(const char *space) 573 { 574 list *l; 575 definition *def; 576 version_list *vp; 577 578 for (l = defined; l != NULL; l = l->next) { 579 def = (definition *) l->val; 580 if (def->def_kind == DEF_PROGRAM) { 581 for (vp = def->def.pr.versions; vp != NULL; 582 vp = vp->next) { 583 f_print(fout, "%s(void) pmap_unset(%s, %s);\n", 584 space, def->def_name, vp->vers_name); 585 } 586 } 587 } 588 } 589 590 static void 591 print_err_message(const char *space) 592 { 593 if (logflag) 594 f_print(fout, "%ssyslog(LOG_ERR, \"%s\");\n", space, _errbuf); 595 else 596 if (inetdflag || pmflag) 597 f_print(fout, "%s_msgout(\"%s\");\n", space, _errbuf); 598 else 599 f_print(fout, "%sfprintf(stderr, \"%s\");\n", space, _errbuf); 600 } 601 /* 602 * Write the server auxiliary function ( _msgout, timeout) 603 */ 604 void 605 write_svc_aux(int nomain) 606 { 607 if (!logflag) 608 write_msg_out(); 609 if (!nomain) 610 write_timeout_func(); 611 if (callerflag) /* EVAS */ 612 write_caller_func(); /* EVAS */ 613 } 614 /* 615 * Write the _msgout function 616 */ 617 void 618 write_msg_out(void) 619 { 620 f_print(fout, "\n"); 621 f_print(fout, "static\n"); 622 f_print(fout, "void _msgout(const char *msg)\n"); 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, \"%%s\", 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, \"%%s\", msg);\n"); 632 f_print(fout, "#endif\n"); 633 f_print(fout, "}\n"); 634 } 635 /* 636 * Write the timeout function 637 */ 638 static void 639 write_timeout_func(void) 640 { 641 if (!timerflag) 642 return; 643 f_print(fout, "\n"); 644 f_print(fout, "static void closedown(void);\n"); 645 f_print(fout, "\n"); 646 f_print(fout, "static void\n"); 647 f_print(fout, "closedown()\n"); 648 f_print(fout, "{\n"); 649 f_print(fout, "\tif (_rpcsvcdirty == 0) {\n"); 650 f_print(fout, "\t\textern fd_set svc_fdset;\n"); 651 f_print(fout, "\t\tstatic int size;\n"); 652 f_print(fout, "\t\tint i, openfd;\n"); 653 if (tirpcflag && pmflag) { 654 f_print(fout, "\t\tstruct t_info tinfo;\n\n"); 655 f_print(fout, "\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n"); 656 } else { 657 f_print(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n"); 658 } 659 f_print(fout, "\t\t\texit(0);\n"); 660 f_print(fout, "\t\tif (size == 0) {\n"); 661 if (tirpcflag) { 662 f_print(fout, "\t\t\tstruct rlimit rl;\n\n"); 663 f_print(fout, "\t\t\trl.rlim_max = 0;\n"); 664 f_print(fout, "\t\t\tgetrlimit(RLIMIT_NOFILE, &rl);\n"); 665 f_print(fout, "\t\t\tif ((size = rl.rlim_max) == 0)\n"); 666 f_print(fout, "\t\t\t\treturn;\n"); 667 } else { 668 f_print(fout, "\t\t\tsize = getdtablesize();\n"); 669 } 670 f_print(fout, "\t\t}\n"); 671 f_print(fout, "\t\tfor (i = 0, openfd = 0; i < size && openfd < 2; i++)\n"); 672 f_print(fout, "\t\t\tif (FD_ISSET(i, &svc_fdset))\n"); 673 f_print(fout, "\t\t\t\topenfd++;\n"); 674 f_print(fout, "\t\tif (openfd <= (_rpcpmstart?0:1))\n"); 675 f_print(fout, "\t\t\texit(0);\n"); 676 f_print(fout, "\t}\n"); 677 f_print(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 678 f_print(fout, "}\n"); 679 } 680 681 static void 682 write_caller_func(void) 683 { /* EVAS */ 684 #define P(s) f_print(fout, s); 685 686 P("\n"); 687 P("char *svc_caller()\n"); 688 P("{\n"); 689 P(" struct sockaddr_in actual;\n"); 690 P(" struct hostent *hp;\n"); 691 P(" static struct in_addr prev;\n"); 692 P(" static char cname[128];\n\n"); 693 694 P(" actual = *svc_getcaller(caller);\n\n"); 695 696 P(" if (memcmp((char *)&actual.sin_addr, (char *)&prev,\n"); 697 P(" sizeof(struct in_addr)) == 0)\n"); 698 P(" return (cname);\n\n"); 699 700 P(" prev = actual.sin_addr;\n\n"); 701 702 P(" hp = gethostbyaddr((char *)&actual.sin_addr, sizeof(actual.sin_addr), AF_INET);\n"); 703 P(" if (hp == NULL) { /* dummy one up */\n"); 704 P(" extern char *inet_ntoa();\n"); 705 P(" strlcpy(cname, inet_ntoa(actual.sin_addr), sizeof(cname));\n"); 706 P(" } else {\n"); 707 P(" strlcpy(cname, hp->h_name, sizeof(cname));\n"); 708 P(" }\n\n"); 709 710 P(" return (cname);\n"); 711 P("}\n"); 712 713 #undef P 714 } 715 /* 716 * Write the most of port monitor support 717 */ 718 static void 719 write_pm_most(char *infile, int netflag) 720 { 721 list *l; 722 definition *def; 723 version_list *vp; 724 725 f_print(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n"); 726 f_print(fout, "\t\t(!strcmp(mname, \"sockmod\") ||"); 727 f_print(fout, " !strcmp(mname, \"timod\"))) {\n"); 728 f_print(fout, "\t\tchar *netid;\n"); 729 if (!netflag) { /* Not included by -n option */ 730 f_print(fout, "\t\tstruct netconfig *nconf = NULL;\n"); 731 f_print(fout, "\t\tSVCXPRT *%s;\n", TRANSP); 732 } 733 if (timerflag) 734 f_print(fout, "\t\tint pmclose;\n"); 735 /* not necessary, defined in /usr/include/stdlib */ 736 /* f_print(fout, "\t\textern char *getenv();\n");*/ 737 f_print(fout, "\n"); 738 f_print(fout, "\t\t_rpcpmstart = 1;\n"); 739 if (logflag) 740 open_log_file(infile, "\t\t"); 741 f_print(fout, "\t\tif ((netid = getenv(\"NLSPROVIDER\")) == NULL) {\n"); 742 sprintf(_errbuf, "cannot get transport name"); 743 print_err_message("\t\t\t"); 744 f_print(fout, "\t\t} else if ((nconf = getnetconfigent(netid)) == NULL) {\n"); 745 sprintf(_errbuf, "cannot get transport info"); 746 print_err_message("\t\t\t"); 747 f_print(fout, "\t\t}\n"); 748 /* 749 * A kludgy support for inetd services. Inetd only works with 750 * sockmod, and RPC works only with timod, hence all this jugglery 751 */ 752 f_print(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n"); 753 f_print(fout, "\t\t\tif (ioctl(0, I_POP, 0) || ioctl(0, I_PUSH, \"timod\")) {\n"); 754 sprintf(_errbuf, "could not get the right module"); 755 print_err_message("\t\t\t\t"); 756 f_print(fout, "\t\t\t\texit(1);\n"); 757 f_print(fout, "\t\t\t}\n"); 758 f_print(fout, "\t\t}\n"); 759 if (timerflag) 760 f_print(fout, "\t\tpmclose = (t_getstate(0) != T_DATAXFER);\n"); 761 f_print(fout, "\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) == NULL) {\n", 762 TRANSP); 763 sprintf(_errbuf, "cannot create server handle"); 764 print_err_message("\t\t\t"); 765 f_print(fout, "\t\t\texit(1);\n"); 766 f_print(fout, "\t\t}\n"); 767 f_print(fout, "\t\tif (nconf)\n"); 768 f_print(fout, "\t\t\tfreenetconfigent(nconf);\n"); 769 for (l = defined; l != NULL; l = l->next) { 770 def = (definition *) l->val; 771 if (def->def_kind != DEF_PROGRAM) { 772 continue; 773 } 774 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 775 f_print(fout, 776 "\t\tif (!svc_reg(%s, %s, %s, ", 777 TRANSP, def->def_name, vp->vers_name); 778 pvname(def->def_name, vp->vers_num); 779 f_print(fout, ", 0)) {\n"); 780 (void) sprintf(_errbuf, "unable to register (%s, %s).", 781 def->def_name, vp->vers_name); 782 print_err_message("\t\t\t"); 783 f_print(fout, "\t\t\texit(1);\n"); 784 f_print(fout, "\t\t}\n"); 785 } 786 } 787 if (timerflag) { 788 f_print(fout, "\t\tif (pmclose) {\n"); 789 f_print(fout, "\t\t\t(void) signal(SIGALRM, (SIGPF)closedown);\n"); 790 f_print(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 791 f_print(fout, "\t\t}\n"); 792 } 793 f_print(fout, "\t\tsvc_run();\n"); 794 f_print(fout, "\t\texit(1);\n"); 795 f_print(fout, "\t\t/* NOTREACHED */\n"); 796 f_print(fout, "\t}\n"); 797 } 798 /* 799 * Support for backgrounding the server if self started. 800 */ 801 static void 802 write_rpc_svc_fg(char *infile, const char *sp) 803 { 804 f_print(fout, "#ifndef RPC_SVC_FG\n"); 805 f_print(fout, "%sint size;\n", sp); 806 if (tirpcflag) 807 f_print(fout, "%sstruct rlimit rl;\n", sp); 808 if (inetdflag) 809 f_print(fout, "%sint pid, i;\n\n", sp); 810 f_print(fout, "%spid = fork();\n", sp); 811 f_print(fout, "%sif (pid < 0) {\n", sp); 812 f_print(fout, "%s\tperror(\"cannot fork\");\n", sp); 813 f_print(fout, "%s\texit(1);\n", sp); 814 f_print(fout, "%s}\n", sp); 815 f_print(fout, "%sif (pid)\n", sp); 816 f_print(fout, "%s\texit(0);\n", sp); 817 /* get number of file descriptors */ 818 if (tirpcflag) { 819 f_print(fout, "%srl.rlim_max = 0;\n", sp); 820 f_print(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp); 821 f_print(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp); 822 f_print(fout, "%s\texit(1);\n", sp); 823 } else { 824 f_print(fout, "%ssize = getdtablesize();\n", sp); 825 } 826 827 f_print(fout, "%sfor (i = 0; i < size; i++)\n", sp); 828 f_print(fout, "%s\t(void) close(i);\n", sp); 829 /* Redirect stderr and stdout to console */ 830 f_print(fout, "%si = open(\"/dev/console\", 2);\n", sp); 831 f_print(fout, "%s(void) dup2(i, 1);\n", sp); 832 f_print(fout, "%s(void) dup2(i, 2);\n", sp); 833 /* This removes control of the controlling terminal */ 834 if (tirpcflag) 835 f_print(fout, "%ssetsid();\n", sp); 836 else { 837 f_print(fout, "%si = open(\"/dev/tty\", 2);\n", sp); 838 f_print(fout, "%sif (i >= 0) {\n", sp); 839 f_print(fout, "%s\t(void) ioctl(i, TIOCNOTTY, NULL);\n", sp); 840 f_print(fout, "%s\t(void) close(i);\n", sp); 841 f_print(fout, "%s}\n", sp); 842 } 843 if (!logflag) 844 open_log_file(infile, sp); 845 f_print(fout, "#endif\n"); 846 if (logflag) 847 open_log_file(infile, sp); 848 } 849 850 static void 851 open_log_file(char *infile, const char *sp) 852 { 853 char *s, *p; 854 855 s = strrchr(infile, '.'); 856 if (s) 857 *s = '\0'; 858 p = strrchr(infile, '/'); 859 if (p) 860 p++; 861 else 862 p = infile; 863 f_print(fout, "%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, p); 864 if (s) 865 *s = '.'; 866 } 867 868 /* 869 * write a registration for the given transport for Inetd 870 */ 871 void 872 write_inetd_register(const char *transp) 873 { 874 list *l; 875 definition *def; 876 version_list *vp; 877 const char *sp; 878 int isudp; 879 char tmpbuf[32]; 880 881 if (inetdflag) 882 sp = "\t"; 883 else 884 sp = ""; 885 if (streq(transp, "udp")) 886 isudp = 1; 887 else 888 isudp = 0; 889 f_print(fout, "\n"); 890 if (inetdflag) { 891 f_print(fout, "\tif ((_rpcfdtype == 0) || (_rpcfdtype == %s)) {\n", 892 isudp ? "SOCK_DGRAM" : "SOCK_STREAM"); 893 } 894 if (inetdflag && streq(transp, "tcp")) { 895 f_print(fout, "%s\tif (_rpcpmstart)\n", sp); 896 897 f_print(fout, "%s\t\t%s = svc%s_create(%s", 898 sp, TRANSP, "fd", inetdflag ? "sock" : "RPC_ANYSOCK"); 899 if (!isudp) 900 f_print(fout, ", 0, 0"); 901 f_print(fout, ");\n"); 902 903 f_print(fout, "%s\telse\n", sp); 904 905 f_print(fout, "%s\t\t%s = svc%s_create(%s", 906 sp, TRANSP, transp, inetdflag ? "sock" : "RPC_ANYSOCK"); 907 if (!isudp) 908 f_print(fout, ", 0, 0"); 909 f_print(fout, ");\n"); 910 911 } else { 912 f_print(fout, "%s\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 f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP); 919 (void) sprintf(_errbuf, "cannot create %s service.", transp); 920 (void) sprintf(tmpbuf, "%s\t\t", sp); 921 print_err_message(tmpbuf); 922 f_print(fout, "%s\t\texit(1);\n", sp); 923 f_print(fout, "%s\t}\n", sp); 924 925 if (inetdflag) { 926 f_print(fout, "%s\tif (!_rpcpmstart)\n\t", sp); 927 f_print(fout, "%s\tproto = IPPROTO_%s;\n", 928 sp, isudp ? "UDP" : "TCP"); 929 } 930 for (l = defined; l != NULL; l = l->next) { 931 def = (definition *) l->val; 932 if (def->def_kind != DEF_PROGRAM) { 933 continue; 934 } 935 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 936 f_print(fout, "%s\tif (!svc_register(%s, %s, %s, ", 937 sp, TRANSP, def->def_name, vp->vers_name); 938 pvname(def->def_name, vp->vers_num); 939 if (inetdflag) 940 f_print(fout, ", proto)) {\n"); 941 else 942 f_print(fout, ", IPPROTO_%s)) {\n", 943 isudp ? "UDP" : "TCP"); 944 (void) sprintf(_errbuf, "unable to register (%s, %s, %s).", 945 def->def_name, vp->vers_name, transp); 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 } 951 if (inetdflag) 952 f_print(fout, "\t}\n"); 953 } 954 955 static const char * 956 aster(const char *type) 957 { 958 if (isvectordef(type, REL_ALIAS)) { 959 return (""); 960 } else { 961 return ("*"); 962 } 963 } 964
Indexes created Wed Sep 24 05:09:52 GMT 2025