rpc_svcout.c revision 1.24
1 /* $NetBSD: rpc_svcout.c,v 1.24 2013/08/11 08:03:10 dholland 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 1.24 2013/08/11 08:03:10 dholland 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 __P((const char *, const char *)); 61 static void internal_proctype __P((proc_list *)); 62 static void write_real_program __P((definition *)); 63 static void write_program __P((definition *, const char *)); 64 static void printerr __P((const char *, const char *)); 65 static void printif __P((const char *, const char *, const char *, const char *)); 66 static void write_inetmost __P((char *)); 67 static void print_return __P((const char *)); 68 static void print_pmapunset __P((const char *)); 69 static void print_err_message __P((const char *)); 70 static void write_timeout_func __P((void)); 71 static void write_caller_func __P((void)); 72 static void write_pm_most __P((char *, int)); 73 static void write_rpc_svc_fg __P((char *, const char *)); 74 static void open_log_file __P((char *, const char *)); 75 static const char *aster __P((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 if (Cflag) 83 f_print(fout, "\t\txdr_%s = (xdrproc_t)xdr_%s;\n", rname, 84 stringfix(typename)); 85 else 86 f_print(fout, "\t\txdr_%s = xdr_%s;\n", rname, stringfix(typename)); 87 } 88 89 static void 90 internal_proctype(proc_list *plist) 91 { 92 f_print(fout, "static "); 93 ptype(plist->res_prefix, plist->res_type, 1); 94 if (!Mflag) 95 f_print(fout, "*"); 96 } 97 98 99 /* 100 * write most of the service, that is, everything but the registrations. 101 */ 102 void 103 write_most(char *infile /* our name */, int netflag, int nomain) 104 { 105 if (inetdflag || pmflag) { 106 const char *var_type; 107 var_type = (nomain ? "" : "static "); 108 f_print(fout, "%sint _rpcpmstart;", var_type); 109 f_print(fout, "\t\t/* Started by a port monitor ? */\n"); 110 f_print(fout, "%sint _rpcfdtype;", var_type); 111 f_print(fout, "\t\t/* Whether Stream or Datagram ? */\n"); 112 if (timerflag) { 113 f_print(fout, "%sint _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 ? 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(const char *transp) 164 { 165 list *l; 166 definition *def; 167 version_list *vp; 168 const char *sp; 169 char tmpbuf[32]; 170 171 sp = ""; 172 f_print(fout, "\n"); 173 f_print(fout, "%s\tnconf = getnetconfigent(\"%s\");\n", sp, transp); 174 f_print(fout, "%s\tif (nconf == NULL) {\n", sp); 175 (void) sprintf(_errbuf, "cannot find %s netid.", transp); 176 sprintf(tmpbuf, "%s\t\t", sp); 177 print_err_message(tmpbuf); 178 f_print(fout, "%s\t\texit(1);\n", sp); 179 f_print(fout, "%s\t}\n", sp); 180 f_print(fout, "%s\t%s = svc_tli_create(RPC_ANYFD, nconf, 0, 0, 0);\n", 181 sp, TRANSP); 182 f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP); 183 (void) sprintf(_errbuf, "cannot create %s service.", transp); 184 print_err_message(tmpbuf); 185 f_print(fout, "%s\t\texit(1);\n", sp); 186 f_print(fout, "%s\t}\n", sp); 187 188 for (l = defined; l != NULL; l = l->next) { 189 def = (definition *) l->val; 190 if (def->def_kind != DEF_PROGRAM) { 191 continue; 192 } 193 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 194 f_print(fout, 195 "%s\t(void) rpcb_unset(%s, %s, nconf);\n", 196 sp, def->def_name, vp->vers_name); 197 f_print(fout, 198 "%s\tif (!svc_reg(%s, %s, %s, ", 199 sp, TRANSP, def->def_name, vp->vers_name); 200 pvname(def->def_name, vp->vers_num); 201 f_print(fout, ", nconf)) {\n"); 202 (void) sprintf(_errbuf, "unable to register (%s, %s, %s).", 203 def->def_name, vp->vers_name, transp); 204 print_err_message(tmpbuf); 205 f_print(fout, "%s\t\texit(1);\n", sp); 206 f_print(fout, "%s\t}\n", sp); 207 } 208 } 209 f_print(fout, "%s\tfreenetconfigent(nconf);\n", sp); 210 } 211 /* 212 * write a registration for the given transport for TLI 213 */ 214 void 215 write_nettype_register(const char *transp) 216 { 217 list *l; 218 definition *def; 219 version_list *vp; 220 221 for (l = defined; l != NULL; l = l->next) { 222 def = (definition *) l->val; 223 if (def->def_kind != DEF_PROGRAM) { 224 continue; 225 } 226 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 227 f_print(fout, "\tif (!svc_create("); 228 pvname(def->def_name, vp->vers_num); 229 f_print(fout, ", %s, %s, \"%s\")) {\n ", 230 def->def_name, vp->vers_name, transp); 231 (void) sprintf(_errbuf, 232 "unable to create (%s, %s) for %s.", 233 def->def_name, vp->vers_name, transp); 234 print_err_message("\t\t"); 235 f_print(fout, "\t\texit(1);\n"); 236 f_print(fout, "\t}\n"); 237 } 238 } 239 } 240 /* 241 * write the rest of the service 242 */ 243 void 244 write_rest(void) 245 { 246 f_print(fout, "\n"); 247 if (inetdflag) { 248 f_print(fout, "\tif (%s == NULL) {\n", TRANSP); 249 (void) sprintf(_errbuf, "could not create a handle"); 250 print_err_message("\t\t"); 251 f_print(fout, "\t\texit(1);\n"); 252 f_print(fout, "\t}\n"); 253 if (timerflag) { 254 f_print(fout, "\tif (_rpcpmstart) {\n"); 255 f_print(fout, 256 "\t\t(void) signal(SIGALRM, %s closedown);\n", 257 Cflag ? "(SIG_PF)" : "(void(*)())"); 258 f_print(fout, "\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 259 f_print(fout, "\t}\n"); 260 } 261 } 262 f_print(fout, "\tsvc_run();\n"); 263 (void) sprintf(_errbuf, "svc_run returned"); 264 print_err_message("\t"); 265 f_print(fout, "\texit(1);\n"); 266 f_print(fout, "\t/* NOTREACHED */\n"); 267 f_print(fout, "}\n"); 268 } 269 270 void 271 write_programs(const char *storage) 272 { 273 list *l; 274 definition *def; 275 276 /* write out stubs for procedure definitions */ 277 for (l = defined; l != NULL; l = l->next) { 278 def = (definition *) l->val; 279 if (def->def_kind == DEF_PROGRAM) { 280 write_real_program(def); 281 } 282 } 283 284 /* write out dispatcher for each program */ 285 for (l = defined; l != NULL; l = l->next) { 286 def = (definition *) l->val; 287 if (def->def_kind == DEF_PROGRAM) { 288 write_program(def, storage); 289 } 290 } 291 292 293 } 294 /* write out definition of internal function (e.g. _printmsg_1(...)) 295 which calls server's definition 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(definition *def) 300 { 301 version_list *vp; 302 proc_list *proc; 303 decl_list *l; 304 305 if (!newstyle) 306 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, "%s ", 318 proc->args.argname); 319 else 320 ptype(proc->args.decls->decl.prefix, 321 proc->args.decls->decl.type, 0); 322 f_print(fout, "*argp, "); 323 if (Mflag) { 324 if (streq(proc->res_type, "void")) 325 f_print(fout, "char "); 326 else 327 ptype(proc->res_prefix, 328 proc->res_type, 0); 329 f_print(fout, "%sresult, ", 330 aster(proc->res_type)); 331 } 332 f_print(fout, "struct svc_req *%s)\n", RQSTP); 333 } else { 334 f_print(fout, "(argp, "); 335 if (Mflag) 336 f_print(fout, "result, "); 337 f_print(fout, "%s)\n", RQSTP); 338 f_print(fout, "\t"); 339 if (proc->arg_num > 1) 340 f_print(fout, "%s ", 341 proc->args.argname); 342 else 343 ptype(proc->args.decls->decl.prefix, 344 proc->args.decls->decl.type, 0); 345 f_print(fout, "*argp;\n"); 346 if (Mflag) { 347 f_print(fout, "\t"); 348 if (streq(proc->res_type, "void")) 349 f_print(fout, "char "); 350 else 351 ptype(proc->res_prefix, 352 proc->res_type, 0); 353 f_print(fout, "%sresult;\n", 354 aster(proc->res_type)); 355 } 356 f_print(fout, "\tstruct svc_req *%s;\n", RQSTP); 357 } 358 359 f_print(fout, "{\n"); 360 f_print(fout, "\treturn ("); 361 pvname_svc(proc->proc_name, vp->vers_num); 362 f_print(fout, "("); 363 if (proc->arg_num < 2) { /* single argument */ 364 if (!streq(proc->args.decls->decl.type, "void")) 365 f_print(fout, "*argp, "); /* non-void */ 366 } else { 367 for (l = proc->args.decls; l != NULL; l = l->next) 368 f_print(fout, "argp->%s, ", l->decl.name); 369 } 370 f_print(fout, "%s));\n}\n", RQSTP); 371 } 372 } 373 } 374 375 static void 376 write_program(definition *def, const char *storage) 377 { 378 version_list *vp; 379 proc_list *proc; 380 int filled; 381 382 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 383 if (Cflag) { 384 f_print(fout, "\n"); 385 if (storage != NULL) { 386 f_print(fout, "%s ", storage); 387 } 388 f_print(fout, "void "); 389 pvname(def->def_name, vp->vers_num); 390 f_print(fout, "(struct svc_req *%s, ", RQSTP); 391 f_print(fout, "SVCXPRT *%s);\n", TRANSP); 392 } 393 f_print(fout, "\n"); 394 if (storage != NULL) { 395 f_print(fout, "%s ", storage); 396 } 397 f_print(fout, "void\n"); 398 pvname(def->def_name, vp->vers_num); 399 400 if (Cflag) { 401 f_print(fout, "(struct svc_req *%s, ", RQSTP); 402 f_print(fout, "SVCXPRT *%s)\n", TRANSP); 403 } else { 404 f_print(fout, "(%s, %s)\n", RQSTP, TRANSP); 405 f_print(fout, " struct svc_req *%s;\n", RQSTP); 406 f_print(fout, " SVCXPRT *%s;\n", TRANSP); 407 } 408 409 f_print(fout, "{\n"); 410 411 filled = 0; 412 f_print(fout, "\tunion {\n"); 413 for (proc = vp->procs; proc != NULL; proc = proc->next) { 414 if (proc->arg_num < 2) { /* single argument */ 415 if (streq(proc->args.decls->decl.type, 416 "void")) { 417 continue; 418 } 419 filled = 1; 420 f_print(fout, "\t\t"); 421 ptype(proc->args.decls->decl.prefix, 422 proc->args.decls->decl.type, 0); 423 pvname(proc->proc_name, vp->vers_num); 424 f_print(fout, "_arg;\n"); 425 426 } else { 427 filled = 1; 428 f_print(fout, "\t\t%s", proc->args.argname); 429 f_print(fout, " "); 430 pvname(proc->proc_name, vp->vers_num); 431 f_print(fout, "_arg;\n"); 432 } 433 } 434 if (!filled) { 435 f_print(fout, "\t\tint fill;\n"); 436 } 437 f_print(fout, "\t} %s;\n", ARG); 438 if (Mflag) { 439 f_print(fout, "\tunion {\n"); 440 for (proc = vp->procs; proc != NULL; proc = proc->next) { 441 f_print(fout, "\t\t"); 442 if (streq(proc->res_type, "void")) 443 f_print(fout, "char "); 444 else 445 ptype(proc->res_prefix, proc->res_type, 446 1); 447 pvname(proc->proc_name, vp->vers_num); 448 f_print(fout, "_res;\n"); 449 } 450 f_print(fout, "\t} %s;\n", RESULT); 451 f_print(fout, "\tbool_t retval;\n"); 452 } else 453 f_print(fout, "\tchar *%s;\n", RESULT); 454 455 if (Cflag) { 456 f_print(fout, "\txdrproc_t xdr_%s, xdr_%s;\n", ARG, RESULT); 457 if (Mflag) 458 f_print(fout, 459 "\tbool_t (*%s)(char *, void *, struct svc_req *);\n", 460 ROUTINE); 461 else 462 f_print(fout, 463 "\tchar *(*%s)(char *, struct svc_req *);\n", 464 ROUTINE); 465 } else { 466 f_print(fout, "\tbool_t (*xdr_%s)(), (*xdr_%s)();\n", ARG, RESULT); 467 if (Mflag) 468 f_print(fout, "\tbool_t (*%s)();\n", ROUTINE); 469 else 470 f_print(fout, "\tchar *(*%s)();\n", ROUTINE); 471 } 472 473 f_print(fout, "\n"); 474 475 if (callerflag) 476 f_print(fout, "\tcaller = transp;\n"); /* EVAS */ 477 if (timerflag) 478 f_print(fout, "\t_rpcsvcdirty = 1;\n"); 479 f_print(fout, "\tswitch (%s->rq_proc) {\n", RQSTP); 480 if (!nullproc(vp->procs)) { 481 f_print(fout, "\tcase NULLPROC:\n"); 482 if (Cflag) { 483 f_print(fout, 484 "\t\t(void) svc_sendreply(%s, (xdrproc_t)xdr_void, NULL);\n", TRANSP); 485 } else { 486 f_print(fout, 487 "\t\t(void) svc_sendreply(%s, xdr_void, NULL);\n", 488 TRANSP); 489 } 490 print_return("\t\t"); 491 f_print(fout, "\n"); 492 } 493 for (proc = vp->procs; proc != NULL; proc = proc->next) { 494 f_print(fout, "\tcase %s:\n", proc->proc_name); 495 if (proc->arg_num < 2) { /* single argument */ 496 p_xdrfunc(ARG, proc->args.decls->decl.type); 497 } else { 498 p_xdrfunc(ARG, proc->args.argname); 499 } 500 p_xdrfunc(RESULT, proc->res_type); 501 if (Cflag) { 502 if (Mflag) 503 f_print(fout, 504 "\t\t%s = (bool_t (*)(char *, void *, struct svc_req *))", 505 ROUTINE); 506 else 507 f_print(fout, 508 "\t\t%s = (char *(*)(char *, struct svc_req *))", 509 ROUTINE); 510 } else { 511 if (Mflag) 512 f_print(fout, "\t\t%s = (bool_t (*)())", ROUTINE); 513 else 514 f_print(fout, "\t\t%s = (char *(*)())", ROUTINE); 515 } 516 517 if (newstyle) /* new style: calls internal routine */ 518 f_print(fout, "_"); 519 if (Cflag) 520 pvname_svc(proc->proc_name, vp->vers_num); 521 else 522 pvname(proc->proc_name, vp->vers_num); 523 f_print(fout, ";\n"); 524 f_print(fout, "\t\tbreak;\n\n"); 525 } 526 f_print(fout, "\tdefault:\n"); 527 printerr("noproc", TRANSP); 528 print_return("\t\t"); 529 f_print(fout, "\t}\n"); 530 531 f_print(fout, "\t(void) memset(&%s, 0, sizeof(%s));\n", ARG, ARG); 532 printif("getargs", TRANSP, "(caddr_t)&", ARG); 533 printerr("decode", TRANSP); 534 print_return("\t\t"); 535 f_print(fout, "\t}\n"); 536 537 if (Cflag) { 538 if (Mflag) 539 f_print(fout, "\tretval = (*%s)((char *)&%s, (void *)&%s, %s);\n", 540 ROUTINE, ARG, RESULT, RQSTP); 541 else 542 f_print(fout, "\t%s = (*%s)((char *)&%s, %s);\n", 543 RESULT, ROUTINE, ARG, RQSTP); 544 } else { 545 if (Mflag) 546 f_print(fout, "\tretval = (*%s)(&%s, &%s, %s);\n", 547 ROUTINE, ARG, RESULT, RQSTP); 548 else 549 f_print(fout, "\t%s = (*%s)(&%s, %s);\n", 550 RESULT, ROUTINE, ARG, RQSTP); 551 } 552 if (Mflag) 553 f_print(fout, 554 "\tif (retval > 0 && !svc_sendreply(%s, xdr_%s, (char *)&%s)) {\n", 555 TRANSP, RESULT, RESULT); 556 else 557 f_print(fout, 558 "\tif (%s != NULL && !svc_sendreply(%s, xdr_%s, %s)) {\n", 559 RESULT, TRANSP, RESULT, RESULT); 560 printerr("systemerr", TRANSP); 561 f_print(fout, "\t}\n"); 562 563 printif("freeargs", TRANSP, "(caddr_t)&", ARG); 564 (void) sprintf(_errbuf, "unable to free arguments"); 565 print_err_message("\t\t"); 566 f_print(fout, "\t\texit(1);\n"); 567 f_print(fout, "\t}\n"); 568 569 if (Mflag) { 570 f_print(fout, "\tif (!"); 571 pvname(def->def_name, vp->vers_num); 572 f_print(fout, "_freeresult"); 573 f_print(fout, "(%s, xdr_%s, (caddr_t)&%s)) {\n", 574 TRANSP, RESULT, RESULT); 575 (void) sprintf(_errbuf, "unable to free results"); 576 print_err_message("\t\t"); 577 f_print(fout, "\t\texit(1);\n"); 578 f_print(fout, "\t}\n"); 579 } 580 581 print_return("\t"); 582 f_print(fout, "}\n"); 583 } 584 } 585 586 static void 587 printerr(const char *err, const char *transp) 588 { 589 f_print(fout, "\t\tsvcerr_%s(%s);\n", err, transp); 590 } 591 592 static void 593 printif(const char *proc, const char *transp, const char *prefix, const char *arg) 594 { 595 f_print(fout, "\tif (!svc_%s(%s, xdr_%s, %s%s)) {\n", 596 proc, transp, arg, prefix, arg); 597 } 598 599 int 600 nullproc(proc_list *proc) 601 { 602 for (; proc != NULL; proc = proc->next) { 603 if (streq(proc->proc_num, "0")) { 604 return (1); 605 } 606 } 607 return (0); 608 } 609 610 static void 611 write_inetmost(char *infile) 612 { 613 f_print(fout, "\tSVCXPRT *%s = NULL;\n", TRANSP); 614 f_print(fout, "\tint sock;\n"); 615 f_print(fout, "\tint proto = 0;\n"); 616 f_print(fout, "\tstruct sockaddr_in saddr;\n"); 617 f_print(fout, "\tsocklen_t asize = (socklen_t)sizeof(saddr);\n"); 618 f_print(fout, "\n"); 619 f_print(fout, 620 "\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n"); 621 f_print(fout, "\t\tsocklen_t ssize = (socklen_t)sizeof(int);\n\n"); 622 f_print(fout, "\t\tif (saddr.sin_family != AF_INET)\n"); 623 f_print(fout, "\t\t\texit(1);\n"); 624 f_print(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n"); 625 f_print(fout, "\t\t\t\t(void *)&_rpcfdtype, &ssize) == -1)\n"); 626 f_print(fout, "\t\t\texit(1);\n"); 627 f_print(fout, "\t\tsock = 0;\n"); 628 f_print(fout, "\t\t_rpcpmstart = 1;\n"); 629 f_print(fout, "\t\tproto = 0;\n"); 630 open_log_file(infile, "\t\t"); 631 f_print(fout, "\t} else {\n"); 632 write_rpc_svc_fg(infile, "\t\t"); 633 f_print(fout, "\t\tsock = RPC_ANYSOCK;\n"); 634 print_pmapunset("\t\t"); 635 f_print(fout, "\t}\n"); 636 } 637 638 static void 639 print_return(const char *space) 640 { 641 if (exitnow) 642 f_print(fout, "%sexit(0);\n", space); 643 else { 644 if (timerflag) 645 f_print(fout, "%s_rpcsvcdirty = 0;\n", space); 646 f_print(fout, "%sreturn;\n", space); 647 } 648 } 649 650 static void 651 print_pmapunset(const char *space) 652 { 653 list *l; 654 definition *def; 655 version_list *vp; 656 657 for (l = defined; l != NULL; l = l->next) { 658 def = (definition *) l->val; 659 if (def->def_kind == DEF_PROGRAM) { 660 for (vp = def->def.pr.versions; vp != NULL; 661 vp = vp->next) { 662 f_print(fout, "%s(void) pmap_unset(%s, %s);\n", 663 space, def->def_name, vp->vers_name); 664 } 665 } 666 } 667 } 668 669 static void 670 print_err_message(const char *space) 671 { 672 if (logflag) 673 f_print(fout, "%ssyslog(LOG_ERR, \"%s\");\n", space, _errbuf); 674 else 675 if (inetdflag || pmflag) 676 f_print(fout, "%s_msgout(\"%s\");\n", space, _errbuf); 677 else 678 f_print(fout, "%sfprintf(stderr, \"%s\");\n", space, _errbuf); 679 } 680 /* 681 * Write the server auxiliary function ( _msgout, timeout) 682 */ 683 void 684 write_svc_aux(int nomain) 685 { 686 if (!logflag) 687 write_msg_out(); 688 if (!nomain) 689 write_timeout_func(); 690 if (callerflag) /* EVAS */ 691 write_caller_func(); /* EVAS */ 692 } 693 /* 694 * Write the _msgout function 695 */ 696 void 697 write_msg_out(void) 698 { 699 f_print(fout, "\n"); 700 f_print(fout, "static\n"); 701 if (!Cflag) { 702 f_print(fout, "void _msgout(msg)\n"); 703 f_print(fout, "\tchar *msg;\n"); 704 } else { 705 f_print(fout, "void _msgout(const char *msg)\n"); 706 } 707 f_print(fout, "{\n"); 708 f_print(fout, "#ifdef RPC_SVC_FG\n"); 709 if (inetdflag || pmflag) 710 f_print(fout, "\tif (_rpcpmstart)\n"); 711 f_print(fout, "\t\tsyslog(LOG_ERR, \"%%s\", msg);\n"); 712 f_print(fout, "\telse\n"); 713 f_print(fout, "\t\t(void) fprintf(stderr, \"%%s\\n\", msg);\n"); 714 f_print(fout, "#else\n"); 715 f_print(fout, "\tsyslog(LOG_ERR, \"%%s\", msg);\n"); 716 f_print(fout, "#endif\n"); 717 f_print(fout, "}\n"); 718 } 719 /* 720 * Write the timeout function 721 */ 722 static void 723 write_timeout_func(void) 724 { 725 if (!timerflag) 726 return; 727 if (Cflag) { 728 f_print(fout, "\n"); 729 f_print(fout, "static void closedown(void);\n"); 730 } 731 f_print(fout, "\n"); 732 f_print(fout, "static void\n"); 733 f_print(fout, "closedown()\n"); 734 f_print(fout, "{\n"); 735 f_print(fout, "\tif (_rpcsvcdirty == 0) {\n"); 736 f_print(fout, "\t\textern fd_set svc_fdset;\n"); 737 f_print(fout, "\t\tstatic int size;\n"); 738 f_print(fout, "\t\tint i, openfd;\n"); 739 if (tirpcflag && pmflag) { 740 f_print(fout, "\t\tstruct t_info tinfo;\n\n"); 741 f_print(fout, "\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n"); 742 } else { 743 f_print(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n"); 744 } 745 f_print(fout, "\t\t\texit(0);\n"); 746 f_print(fout, "\t\tif (size == 0) {\n"); 747 if (tirpcflag) { 748 f_print(fout, "\t\t\tstruct rlimit rl;\n\n"); 749 f_print(fout, "\t\t\trl.rlim_max = 0;\n"); 750 f_print(fout, "\t\t\tgetrlimit(RLIMIT_NOFILE, &rl);\n"); 751 f_print(fout, "\t\t\tif ((size = rl.rlim_max) == 0)\n"); 752 f_print(fout, "\t\t\t\treturn;\n"); 753 } else { 754 f_print(fout, "\t\t\tsize = getdtablesize();\n"); 755 } 756 f_print(fout, "\t\t}\n"); 757 f_print(fout, "\t\tfor (i = 0, openfd = 0; i < size && openfd < 2; i++)\n"); 758 f_print(fout, "\t\t\tif (FD_ISSET(i, &svc_fdset))\n"); 759 f_print(fout, "\t\t\t\topenfd++;\n"); 760 f_print(fout, "\t\tif (openfd <= (_rpcpmstart?0:1))\n"); 761 f_print(fout, "\t\t\texit(0);\n"); 762 f_print(fout, "\t}\n"); 763 f_print(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 764 f_print(fout, "}\n"); 765 } 766 767 static void 768 write_caller_func(void) 769 { /* EVAS */ 770 #define P(s) f_print(fout, s); 771 772 P("\n"); 773 P("char *svc_caller()\n"); 774 P("{\n"); 775 P(" struct sockaddr_in actual;\n"); 776 P(" struct hostent *hp;\n"); 777 P(" static struct in_addr prev;\n"); 778 P(" static char cname[128];\n\n"); 779 780 P(" actual = *svc_getcaller(caller);\n\n"); 781 782 P(" if (memcmp((char *)&actual.sin_addr, (char *)&prev,\n"); 783 P(" sizeof(struct in_addr)) == 0)\n"); 784 P(" return (cname);\n\n"); 785 786 P(" prev = actual.sin_addr;\n\n"); 787 788 P(" hp = gethostbyaddr((char *)&actual.sin_addr, sizeof(actual.sin_addr), AF_INET);\n"); 789 P(" if (hp == NULL) { /* dummy one up */\n"); 790 P(" extern char *inet_ntoa();\n"); 791 P(" strlcpy(cname, inet_ntoa(actual.sin_addr), sizeof(cname));\n"); 792 P(" } else {\n"); 793 P(" strlcpy(cname, hp->h_name, sizeof(cname));\n"); 794 P(" }\n\n"); 795 796 P(" return (cname);\n"); 797 P("}\n"); 798 799 #undef P 800 } 801 /* 802 * Write the most of port monitor support 803 */ 804 static void 805 write_pm_most(char *infile, int netflag) 806 { 807 list *l; 808 definition *def; 809 version_list *vp; 810 811 f_print(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n"); 812 f_print(fout, "\t\t(!strcmp(mname, \"sockmod\") ||"); 813 f_print(fout, " !strcmp(mname, \"timod\"))) {\n"); 814 f_print(fout, "\t\tchar *netid;\n"); 815 if (!netflag) { /* Not included by -n option */ 816 f_print(fout, "\t\tstruct netconfig *nconf = NULL;\n"); 817 f_print(fout, "\t\tSVCXPRT *%s;\n", TRANSP); 818 } 819 if (timerflag) 820 f_print(fout, "\t\tint pmclose;\n"); 821 /* not necessary, defined in /usr/include/stdlib */ 822 /* f_print(fout, "\t\textern char *getenv();\n");*/ 823 f_print(fout, "\n"); 824 f_print(fout, "\t\t_rpcpmstart = 1;\n"); 825 if (logflag) 826 open_log_file(infile, "\t\t"); 827 f_print(fout, "\t\tif ((netid = getenv(\"NLSPROVIDER\")) == NULL) {\n"); 828 sprintf(_errbuf, "cannot get transport name"); 829 print_err_message("\t\t\t"); 830 f_print(fout, "\t\t} else if ((nconf = getnetconfigent(netid)) == NULL) {\n"); 831 sprintf(_errbuf, "cannot get transport info"); 832 print_err_message("\t\t\t"); 833 f_print(fout, "\t\t}\n"); 834 /* 835 * A kludgy support for inetd services. Inetd only works with 836 * sockmod, and RPC works only with timod, hence all this jugglery 837 */ 838 f_print(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n"); 839 f_print(fout, "\t\t\tif (ioctl(0, I_POP, 0) || ioctl(0, I_PUSH, \"timod\")) {\n"); 840 sprintf(_errbuf, "could not get the right module"); 841 print_err_message("\t\t\t\t"); 842 f_print(fout, "\t\t\t\texit(1);\n"); 843 f_print(fout, "\t\t\t}\n"); 844 f_print(fout, "\t\t}\n"); 845 if (timerflag) 846 f_print(fout, "\t\tpmclose = (t_getstate(0) != T_DATAXFER);\n"); 847 f_print(fout, "\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) == NULL) {\n", 848 TRANSP); 849 sprintf(_errbuf, "cannot create server handle"); 850 print_err_message("\t\t\t"); 851 f_print(fout, "\t\t\texit(1);\n"); 852 f_print(fout, "\t\t}\n"); 853 f_print(fout, "\t\tif (nconf)\n"); 854 f_print(fout, "\t\t\tfreenetconfigent(nconf);\n"); 855 for (l = defined; l != NULL; l = l->next) { 856 def = (definition *) l->val; 857 if (def->def_kind != DEF_PROGRAM) { 858 continue; 859 } 860 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 861 f_print(fout, 862 "\t\tif (!svc_reg(%s, %s, %s, ", 863 TRANSP, def->def_name, vp->vers_name); 864 pvname(def->def_name, vp->vers_num); 865 f_print(fout, ", 0)) {\n"); 866 (void) sprintf(_errbuf, "unable to register (%s, %s).", 867 def->def_name, vp->vers_name); 868 print_err_message("\t\t\t"); 869 f_print(fout, "\t\t\texit(1);\n"); 870 f_print(fout, "\t\t}\n"); 871 } 872 } 873 if (timerflag) { 874 f_print(fout, "\t\tif (pmclose) {\n"); 875 f_print(fout, "\t\t\t(void) signal(SIGALRM, %s closedown);\n", 876 Cflag ? "(SIG_PF)" : "(void(*)())"); 877 f_print(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 878 f_print(fout, "\t\t}\n"); 879 } 880 f_print(fout, "\t\tsvc_run();\n"); 881 f_print(fout, "\t\texit(1);\n"); 882 f_print(fout, "\t\t/* NOTREACHED */\n"); 883 f_print(fout, "\t}\n"); 884 } 885 /* 886 * Support for backgrounding the server if self started. 887 */ 888 static void 889 write_rpc_svc_fg(char *infile, const char *sp) 890 { 891 f_print(fout, "#ifndef RPC_SVC_FG\n"); 892 f_print(fout, "%sint size;\n", sp); 893 if (tirpcflag) 894 f_print(fout, "%sstruct rlimit rl;\n", sp); 895 if (inetdflag) 896 f_print(fout, "%sint pid, i;\n\n", sp); 897 f_print(fout, "%spid = fork();\n", sp); 898 f_print(fout, "%sif (pid < 0) {\n", sp); 899 f_print(fout, "%s\tperror(\"cannot fork\");\n", sp); 900 f_print(fout, "%s\texit(1);\n", sp); 901 f_print(fout, "%s}\n", sp); 902 f_print(fout, "%sif (pid)\n", sp); 903 f_print(fout, "%s\texit(0);\n", sp); 904 /* get number of file descriptors */ 905 if (tirpcflag) { 906 f_print(fout, "%srl.rlim_max = 0;\n", sp); 907 f_print(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp); 908 f_print(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp); 909 f_print(fout, "%s\texit(1);\n", sp); 910 } else { 911 f_print(fout, "%ssize = getdtablesize();\n", sp); 912 } 913 914 f_print(fout, "%sfor (i = 0; i < size; i++)\n", sp); 915 f_print(fout, "%s\t(void) close(i);\n", sp); 916 /* Redirect stderr and stdout to console */ 917 f_print(fout, "%si = open(\"/dev/console\", 2);\n", sp); 918 f_print(fout, "%s(void) dup2(i, 1);\n", sp); 919 f_print(fout, "%s(void) dup2(i, 2);\n", sp); 920 /* This removes control of the controlling terminal */ 921 if (tirpcflag) 922 f_print(fout, "%ssetsid();\n", sp); 923 else { 924 f_print(fout, "%si = open(\"/dev/tty\", 2);\n", sp); 925 f_print(fout, "%sif (i >= 0) {\n", sp); 926 f_print(fout, "%s\t(void) ioctl(i, TIOCNOTTY, NULL);\n", sp); 927 f_print(fout, "%s\t(void) close(i);\n", sp); 928 f_print(fout, "%s}\n", sp); 929 } 930 if (!logflag) 931 open_log_file(infile, sp); 932 f_print(fout, "#endif\n"); 933 if (logflag) 934 open_log_file(infile, sp); 935 } 936 937 static void 938 open_log_file(char *infile, const char *sp) 939 { 940 char *s, *p; 941 942 s = strrchr(infile, '.'); 943 if (s) 944 *s = '\0'; 945 p = strrchr(infile, '/'); 946 if (p) 947 p++; 948 else 949 p = infile; 950 f_print(fout, "%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, p); 951 if (s) 952 *s = '.'; 953 } 954 955 /* 956 * write a registration for the given transport for Inetd 957 */ 958 void 959 write_inetd_register(const char *transp) 960 { 961 list *l; 962 definition *def; 963 version_list *vp; 964 const char *sp; 965 int isudp; 966 char tmpbuf[32]; 967 968 if (inetdflag) 969 sp = "\t"; 970 else 971 sp = ""; 972 if (streq(transp, "udp")) 973 isudp = 1; 974 else 975 isudp = 0; 976 f_print(fout, "\n"); 977 if (inetdflag) { 978 f_print(fout, "\tif ((_rpcfdtype == 0) || (_rpcfdtype == %s)) {\n", 979 isudp ? "SOCK_DGRAM" : "SOCK_STREAM"); 980 } 981 if (inetdflag && streq(transp, "tcp")) { 982 f_print(fout, "%s\tif (_rpcpmstart)\n", sp); 983 984 f_print(fout, "%s\t\t%s = svc%s_create(%s", 985 sp, TRANSP, "fd", inetdflag ? "sock" : "RPC_ANYSOCK"); 986 if (!isudp) 987 f_print(fout, ", 0, 0"); 988 f_print(fout, ");\n"); 989 990 f_print(fout, "%s\telse\n", sp); 991 992 f_print(fout, "%s\t\t%s = svc%s_create(%s", 993 sp, TRANSP, transp, inetdflag ? "sock" : "RPC_ANYSOCK"); 994 if (!isudp) 995 f_print(fout, ", 0, 0"); 996 f_print(fout, ");\n"); 997 998 } else { 999 f_print(fout, "%s\t%s = svc%s_create(%s", 1000 sp, TRANSP, transp, inetdflag ? "sock" : "RPC_ANYSOCK"); 1001 if (!isudp) 1002 f_print(fout, ", 0, 0"); 1003 f_print(fout, ");\n"); 1004 } 1005 f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP); 1006 (void) sprintf(_errbuf, "cannot create %s service.", transp); 1007 (void) sprintf(tmpbuf, "%s\t\t", sp); 1008 print_err_message(tmpbuf); 1009 f_print(fout, "%s\t\texit(1);\n", sp); 1010 f_print(fout, "%s\t}\n", sp); 1011 1012 if (inetdflag) { 1013 f_print(fout, "%s\tif (!_rpcpmstart)\n\t", sp); 1014 f_print(fout, "%s\tproto = IPPROTO_%s;\n", 1015 sp, isudp ? "UDP" : "TCP"); 1016 } 1017 for (l = defined; l != NULL; l = l->next) { 1018 def = (definition *) l->val; 1019 if (def->def_kind != DEF_PROGRAM) { 1020 continue; 1021 } 1022 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 1023 f_print(fout, "%s\tif (!svc_register(%s, %s, %s, ", 1024 sp, TRANSP, def->def_name, vp->vers_name); 1025 pvname(def->def_name, vp->vers_num); 1026 if (inetdflag) 1027 f_print(fout, ", proto)) {\n"); 1028 else 1029 f_print(fout, ", IPPROTO_%s)) {\n", 1030 isudp ? "UDP" : "TCP"); 1031 (void) sprintf(_errbuf, "unable to register (%s, %s, %s).", 1032 def->def_name, vp->vers_name, transp); 1033 print_err_message(tmpbuf); 1034 f_print(fout, "%s\t\texit(1);\n", sp); 1035 f_print(fout, "%s\t}\n", sp); 1036 } 1037 } 1038 if (inetdflag) 1039 f_print(fout, "\t}\n"); 1040 } 1041 1042 static const char * 1043 aster(const char *type) 1044 { 1045 if (isvectordef(type, REL_ALIAS)) { 1046 return (""); 1047 } else { 1048 return ("*"); 1049 } 1050 } 1051
Indexes created Wed Sep 24 02:09:48 GMT 2025