rpc_svcout.c revision 1.13
1 /* $NetBSD: rpc_svcout.c,v 1.13 2001/03/21 19:20:18 mycroft 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 1.13 2001/03/21 19:20:18 mycroft 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 if (Mflag) { 424 f_print(fout, "\tunion {\n"); 425 for (proc = vp->procs; proc != NULL; proc = proc->next) { 426 f_print(fout, "\t\t"); 427 if (streq(proc->res_type, "void")) 428 f_print(fout, "char "); 429 else 430 ptype(proc->res_prefix, proc->res_type, 431 1); 432 pvname(proc->proc_name, vp->vers_num); 433 f_print(fout, "_res;\n"); 434 } 435 f_print(fout, "\t} %s;\n", RESULT); 436 f_print(fout, "\tbool_t retval;\n"); 437 } else 438 f_print(fout, "\tchar *%s;\n", RESULT); 439 440 if (Cflag) { 441 f_print(fout, "\txdrproc_t xdr_%s, xdr_%s;\n", ARG, RESULT); 442 if (Mflag) 443 f_print(fout, 444 "\tbool_t (*%s)(char *, void *, struct svc_req *);\n", 445 ROUTINE); 446 else 447 f_print(fout, 448 "\tchar *(*%s)(char *, struct svc_req *);\n", 449 ROUTINE); 450 } else { 451 f_print(fout, "\tbool_t (*xdr_%s)(), (*xdr_%s)();\n", ARG, RESULT); 452 if (Mflag) 453 f_print(fout, "\tbool_t (*%s)();\n", ROUTINE); 454 else 455 f_print(fout, "\tchar *(*%s)();\n", ROUTINE); 456 } 457 458 f_print(fout, "\n"); 459 460 if (callerflag) 461 f_print(fout, "\tcaller = transp;\n"); /* EVAS */ 462 if (timerflag) 463 f_print(fout, "\t_rpcsvcdirty = 1;\n"); 464 f_print(fout, "\tswitch (%s->rq_proc) {\n", RQSTP); 465 if (!nullproc(vp->procs)) { 466 f_print(fout, "\tcase NULLPROC:\n"); 467 if (Cflag) { 468 f_print(fout, 469 "\t\t(void) svc_sendreply(%s, (xdrproc_t)xdr_void, (char *)NULL);\n", TRANSP); 470 } else { 471 f_print(fout, 472 "\t\t(void) svc_sendreply(%s, xdr_void, (char *)NULL);\n", 473 TRANSP); 474 } 475 print_return("\t\t"); 476 f_print(fout, "\n"); 477 } 478 for (proc = vp->procs; proc != NULL; proc = proc->next) { 479 f_print(fout, "\tcase %s:\n", proc->proc_name); 480 if (proc->arg_num < 2) { /* single argument */ 481 p_xdrfunc(ARG, proc->args.decls->decl.type); 482 } else { 483 p_xdrfunc(ARG, proc->args.argname); 484 } 485 p_xdrfunc(RESULT, proc->res_type); 486 if (Cflag) { 487 if (Mflag) 488 f_print(fout, 489 "\t\t%s = (bool_t (*)(char *, void *, struct svc_req *))", 490 ROUTINE); 491 else 492 f_print(fout, 493 "\t\t%s = (char *(*)(char *, struct svc_req *))", 494 ROUTINE); 495 } else { 496 if (Mflag) 497 f_print(fout, "\t\t%s = (bool_t (*)())", ROUTINE); 498 else 499 f_print(fout, "\t\t%s = (char *(*)())", ROUTINE); 500 } 501 502 if (newstyle) /* new style: calls internal routine */ 503 f_print(fout, "_"); 504 if (Cflag) 505 pvname_svc(proc->proc_name, vp->vers_num); 506 else 507 pvname(proc->proc_name, vp->vers_num); 508 f_print(fout, ";\n"); 509 f_print(fout, "\t\tbreak;\n\n"); 510 } 511 f_print(fout, "\tdefault:\n"); 512 printerr("noproc", TRANSP); 513 print_return("\t\t"); 514 f_print(fout, "\t}\n"); 515 516 f_print(fout, "\t(void) memset((char *)&%s, 0, sizeof (%s));\n", ARG, ARG); 517 printif("getargs", TRANSP, "(caddr_t)&", ARG); 518 printerr("decode", TRANSP); 519 print_return("\t\t"); 520 f_print(fout, "\t}\n"); 521 522 if (Cflag) { 523 if (Mflag) 524 f_print(fout, "\tretval = (*%s)((char *)&%s, (void *)&%s, %s);\n", 525 ROUTINE, ARG, RESULT, RQSTP); 526 else 527 f_print(fout, "\t%s = (*%s)((char *)&%s, %s);\n", 528 RESULT, ROUTINE, ARG, RQSTP); 529 } else { 530 if (Mflag) 531 f_print(fout, "\tretval = (*%s)(&%s, &%s, %s);\n", 532 ROUTINE, ARG, RESULT, RQSTP); 533 else 534 f_print(fout, "\t%s = (*%s)(&%s, %s);\n", 535 RESULT, ROUTINE, ARG, RQSTP); 536 } 537 if (Mflag) 538 f_print(fout, 539 "\tif (retval > 0 && !svc_sendreply(%s, xdr_%s, (char *)&%s)) {\n", 540 TRANSP, RESULT, RESULT); 541 else 542 f_print(fout, 543 "\tif (%s != NULL && !svc_sendreply(%s, xdr_%s, %s)) {\n", 544 RESULT, TRANSP, RESULT, RESULT); 545 printerr("systemerr", TRANSP); 546 f_print(fout, "\t}\n"); 547 548 printif("freeargs", TRANSP, "(caddr_t)&", ARG); 549 (void) sprintf(_errbuf, "unable to free arguments"); 550 print_err_message("\t\t"); 551 f_print(fout, "\t\texit(1);\n"); 552 f_print(fout, "\t}\n"); 553 554 if (Mflag) { 555 f_print(fout, "\tif (!"); 556 pvname(def->def_name, vp->vers_num); 557 f_print(fout, "_freeresult"); 558 f_print(fout, "(%s, xdr_%s, (caddr_t)&%s)) {\n", 559 TRANSP, RESULT, RESULT); 560 (void) sprintf(_errbuf, "unable to free results"); 561 print_err_message("\t\t"); 562 f_print(fout, "\t\texit(1);\n"); 563 f_print(fout, "\t}\n"); 564 } 565 566 print_return("\t"); 567 f_print(fout, "}\n"); 568 } 569 } 570 571 static void 572 printerr(err, transp) 573 char *err; 574 char *transp; 575 { 576 f_print(fout, "\t\tsvcerr_%s(%s);\n", err, transp); 577 } 578 579 static void 580 printif(proc, transp, prefix, arg) 581 char *proc; 582 char *transp; 583 char *prefix; 584 char *arg; 585 { 586 f_print(fout, "\tif (!svc_%s(%s, xdr_%s, %s%s)) {\n", 587 proc, transp, arg, prefix, arg); 588 } 589 590 int 591 nullproc(proc) 592 proc_list *proc; 593 { 594 for (; proc != NULL; proc = proc->next) { 595 if (streq(proc->proc_num, "0")) { 596 return (1); 597 } 598 } 599 return (0); 600 } 601 602 static void 603 write_inetmost(infile) 604 char *infile; 605 { 606 f_print(fout, "\tSVCXPRT *%s = NULL;\n", TRANSP); 607 f_print(fout, "\tint sock;\n"); 608 f_print(fout, "\tint proto = 0;\n"); 609 f_print(fout, "\tstruct sockaddr_in saddr;\n"); 610 f_print(fout, "\tint asize = sizeof (saddr);\n"); 611 f_print(fout, "\n"); 612 f_print(fout, 613 "\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n"); 614 f_print(fout, "\t\tint ssize = sizeof (int);\n\n"); 615 f_print(fout, "\t\tif (saddr.sin_family != AF_INET)\n"); 616 f_print(fout, "\t\t\texit(1);\n"); 617 f_print(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n"); 618 f_print(fout, "\t\t\t\t(char *)&_rpcfdtype, &ssize) == -1)\n"); 619 f_print(fout, "\t\t\texit(1);\n"); 620 f_print(fout, "\t\tsock = 0;\n"); 621 f_print(fout, "\t\t_rpcpmstart = 1;\n"); 622 f_print(fout, "\t\tproto = 0;\n"); 623 open_log_file(infile, "\t\t"); 624 f_print(fout, "\t} else {\n"); 625 write_rpc_svc_fg(infile, "\t\t"); 626 f_print(fout, "\t\tsock = RPC_ANYSOCK;\n"); 627 print_pmapunset("\t\t"); 628 f_print(fout, "\t}\n"); 629 } 630 631 static void 632 print_return(space) 633 char *space; 634 { 635 if (exitnow) 636 f_print(fout, "%sexit(0);\n", space); 637 else { 638 if (timerflag) 639 f_print(fout, "%s_rpcsvcdirty = 0;\n", space); 640 f_print(fout, "%sreturn;\n", space); 641 } 642 } 643 644 static void 645 print_pmapunset(space) 646 char *space; 647 { 648 list *l; 649 definition *def; 650 version_list *vp; 651 652 for (l = defined; l != NULL; l = l->next) { 653 def = (definition *) l->val; 654 if (def->def_kind == DEF_PROGRAM) { 655 for (vp = def->def.pr.versions; vp != NULL; 656 vp = vp->next) { 657 f_print(fout, "%s(void) pmap_unset(%s, %s);\n", 658 space, def->def_name, vp->vers_name); 659 } 660 } 661 } 662 } 663 664 static void 665 print_err_message(space) 666 char *space; 667 { 668 if (logflag) 669 f_print(fout, "%ssyslog(LOG_ERR, \"%s\");\n", space, _errbuf); 670 else 671 if (inetdflag || pmflag) 672 f_print(fout, "%s_msgout(\"%s\");\n", space, _errbuf); 673 else 674 f_print(fout, "%sfprintf(stderr, \"%s\");\n", space, _errbuf); 675 } 676 /* 677 * Write the server auxiliary function ( _msgout, timeout) 678 */ 679 void 680 write_svc_aux(nomain) 681 int nomain; 682 { 683 if (!logflag) 684 write_msg_out(); 685 if (!nomain) 686 write_timeout_func(); 687 if (callerflag) /* EVAS */ 688 write_caller_func(); /* EVAS */ 689 } 690 /* 691 * Write the _msgout function 692 */ 693 void 694 write_msg_out() 695 { 696 f_print(fout, "\n"); 697 f_print(fout, "static\n"); 698 if (!Cflag) { 699 f_print(fout, "void _msgout(msg)\n"); 700 f_print(fout, "\tchar *msg;\n"); 701 } else { 702 f_print(fout, "void _msgout(char* msg)\n"); 703 } 704 f_print(fout, "{\n"); 705 f_print(fout, "#ifdef RPC_SVC_FG\n"); 706 if (inetdflag || pmflag) 707 f_print(fout, "\tif (_rpcpmstart)\n"); 708 f_print(fout, "\t\tsyslog(LOG_ERR, \"%%s\", msg);\n"); 709 f_print(fout, "\telse\n"); 710 f_print(fout, "\t\t(void) fprintf(stderr, \"%%s\\n\", msg);\n"); 711 f_print(fout, "#else\n"); 712 f_print(fout, "\tsyslog(LOG_ERR, \"%%s\", msg);\n"); 713 f_print(fout, "#endif\n"); 714 f_print(fout, "}\n"); 715 } 716 /* 717 * Write the timeout function 718 */ 719 static void 720 write_timeout_func() 721 { 722 if (!timerflag) 723 return; 724 if (Cflag) { 725 f_print(fout, "\n"); 726 f_print(fout, "static void closedown(void);\n"); 727 } 728 f_print(fout, "\n"); 729 f_print(fout, "static void\n"); 730 f_print(fout, "closedown()\n"); 731 f_print(fout, "{\n"); 732 f_print(fout, "\tif (_rpcsvcdirty == 0) {\n"); 733 f_print(fout, "\t\textern fd_set svc_fdset;\n"); 734 f_print(fout, "\t\tstatic int size;\n"); 735 f_print(fout, "\t\tint i, openfd;\n"); 736 if (tirpcflag && pmflag) { 737 f_print(fout, "\t\tstruct t_info tinfo;\n\n"); 738 f_print(fout, "\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n"); 739 } else { 740 f_print(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n"); 741 } 742 f_print(fout, "\t\t\texit(0);\n"); 743 f_print(fout, "\t\tif (size == 0) {\n"); 744 if (tirpcflag) { 745 f_print(fout, "\t\t\tstruct rlimit rl;\n\n"); 746 f_print(fout, "\t\t\trl.rlim_max = 0;\n"); 747 f_print(fout, "\t\t\tgetrlimit(RLIMIT_NOFILE, &rl);\n"); 748 f_print(fout, "\t\t\tif ((size = rl.rlim_max) == 0)\n"); 749 f_print(fout, "\t\t\t\treturn;\n"); 750 } else { 751 f_print(fout, "\t\t\tsize = getdtablesize();\n"); 752 } 753 f_print(fout, "\t\t}\n"); 754 f_print(fout, "\t\tfor (i = 0, openfd = 0; i < size && openfd < 2; i++)\n"); 755 f_print(fout, "\t\t\tif (FD_ISSET(i, &svc_fdset))\n"); 756 f_print(fout, "\t\t\t\topenfd++;\n"); 757 f_print(fout, "\t\tif (openfd <= (_rpcpmstart?0:1))\n"); 758 f_print(fout, "\t\t\texit(0);\n"); 759 f_print(fout, "\t}\n"); 760 f_print(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 761 f_print(fout, "}\n"); 762 } 763 764 static void 765 write_caller_func() 766 { /* EVAS */ 767 #define P(s) f_print(fout, s); 768 769 P("\n"); 770 P("char *svc_caller()\n"); 771 P("{\n"); 772 P(" struct sockaddr_in actual;\n"); 773 P(" struct hostent *hp;\n"); 774 P(" static struct in_addr prev;\n"); 775 P(" static char cname[128];\n\n"); 776 777 P(" actual = *svc_getcaller(caller);\n\n"); 778 779 P(" if (memcmp((char *)&actual.sin_addr, (char *)&prev,\n"); 780 P(" sizeof(struct in_addr)) == 0)\n"); 781 P(" return (cname);\n\n"); 782 783 P(" prev = actual.sin_addr;\n\n"); 784 785 P(" hp = gethostbyaddr((char *) &actual.sin_addr, sizeof(actual.sin_addr), AF_INET);\n"); 786 P(" if (hp == NULL) { /* dummy one up */\n"); 787 P(" extern char *inet_ntoa();\n"); 788 P(" strcpy(cname, inet_ntoa(actual.sin_addr));\n"); 789 P(" } else {\n"); 790 P(" strcpy(cname, hp->h_name);\n"); 791 P(" }\n\n"); 792 793 P(" return (cname);\n"); 794 P("}\n"); 795 796 #undef P 797 } 798 /* 799 * Write the most of port monitor support 800 */ 801 static void 802 write_pm_most(infile, netflag) 803 char *infile; 804 int netflag; 805 { 806 list *l; 807 definition *def; 808 version_list *vp; 809 810 f_print(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n"); 811 f_print(fout, "\t\t(!strcmp(mname, \"sockmod\") ||"); 812 f_print(fout, " !strcmp(mname, \"timod\"))) {\n"); 813 f_print(fout, "\t\tchar *netid;\n"); 814 if (!netflag) { /* Not included by -n option */ 815 f_print(fout, "\t\tstruct netconfig *nconf = NULL;\n"); 816 f_print(fout, "\t\tSVCXPRT *%s;\n", TRANSP); 817 } 818 if (timerflag) 819 f_print(fout, "\t\tint pmclose;\n"); 820 /* not necessary, defined in /usr/include/stdlib */ 821 /* f_print(fout, "\t\textern char *getenv();\n");*/ 822 f_print(fout, "\n"); 823 f_print(fout, "\t\t_rpcpmstart = 1;\n"); 824 if (logflag) 825 open_log_file(infile, "\t\t"); 826 f_print(fout, "\t\tif ((netid = getenv(\"NLSPROVIDER\")) == NULL) {\n"); 827 sprintf(_errbuf, "cannot get transport name"); 828 print_err_message("\t\t\t"); 829 f_print(fout, "\t\t} else if ((nconf = getnetconfigent(netid)) == NULL) {\n"); 830 sprintf(_errbuf, "cannot get transport info"); 831 print_err_message("\t\t\t"); 832 f_print(fout, "\t\t}\n"); 833 /* 834 * A kludgy support for inetd services. Inetd only works with 835 * sockmod, and RPC works only with timod, hence all this jugglery 836 */ 837 f_print(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n"); 838 f_print(fout, "\t\t\tif (ioctl(0, I_POP, 0) || ioctl(0, I_PUSH, \"timod\")) {\n"); 839 sprintf(_errbuf, "could not get the right module"); 840 print_err_message("\t\t\t\t"); 841 f_print(fout, "\t\t\t\texit(1);\n"); 842 f_print(fout, "\t\t\t}\n"); 843 f_print(fout, "\t\t}\n"); 844 if (timerflag) 845 f_print(fout, "\t\tpmclose = (t_getstate(0) != T_DATAXFER);\n"); 846 f_print(fout, "\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) == NULL) {\n", 847 TRANSP); 848 sprintf(_errbuf, "cannot create server handle"); 849 print_err_message("\t\t\t"); 850 f_print(fout, "\t\t\texit(1);\n"); 851 f_print(fout, "\t\t}\n"); 852 f_print(fout, "\t\tif (nconf)\n"); 853 f_print(fout, "\t\t\tfreenetconfigent(nconf);\n"); 854 for (l = defined; l != NULL; l = l->next) { 855 def = (definition *) l->val; 856 if (def->def_kind != DEF_PROGRAM) { 857 continue; 858 } 859 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 860 f_print(fout, 861 "\t\tif (!svc_reg(%s, %s, %s, ", 862 TRANSP, def->def_name, vp->vers_name); 863 pvname(def->def_name, vp->vers_num); 864 f_print(fout, ", 0)) {\n"); 865 (void) sprintf(_errbuf, "unable to register (%s, %s).", 866 def->def_name, vp->vers_name); 867 print_err_message("\t\t\t"); 868 f_print(fout, "\t\t\texit(1);\n"); 869 f_print(fout, "\t\t}\n"); 870 } 871 } 872 if (timerflag) { 873 f_print(fout, "\t\tif (pmclose) {\n"); 874 f_print(fout, "\t\t\t(void) signal(SIGALRM, %s closedown);\n", 875 Cflag ? "(SIG_PF)" : "(void(*)())"); 876 f_print(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n"); 877 f_print(fout, "\t\t}\n"); 878 } 879 f_print(fout, "\t\tsvc_run();\n"); 880 f_print(fout, "\t\texit(1);\n"); 881 f_print(fout, "\t\t/* NOTREACHED */\n"); 882 f_print(fout, "\t}\n"); 883 } 884 /* 885 * Support for backgrounding the server if self started. 886 */ 887 static void 888 write_rpc_svc_fg(infile, sp) 889 char *infile; 890 char *sp; 891 { 892 f_print(fout, "#ifndef RPC_SVC_FG\n"); 893 f_print(fout, "%sint size;\n", sp); 894 if (tirpcflag) 895 f_print(fout, "%sstruct rlimit rl;\n", sp); 896 if (inetdflag) 897 f_print(fout, "%sint pid, i;\n\n", sp); 898 f_print(fout, "%spid = fork();\n", sp); 899 f_print(fout, "%sif (pid < 0) {\n", sp); 900 f_print(fout, "%s\tperror(\"cannot fork\");\n", sp); 901 f_print(fout, "%s\texit(1);\n", sp); 902 f_print(fout, "%s}\n", sp); 903 f_print(fout, "%sif (pid)\n", sp); 904 f_print(fout, "%s\texit(0);\n", sp); 905 /* get number of file descriptors */ 906 if (tirpcflag) { 907 f_print(fout, "%srl.rlim_max = 0;\n", sp); 908 f_print(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp); 909 f_print(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp); 910 f_print(fout, "%s\texit(1);\n", sp); 911 } else { 912 f_print(fout, "%ssize = getdtablesize();\n", sp); 913 } 914 915 f_print(fout, "%sfor (i = 0; i < size; i++)\n", sp); 916 f_print(fout, "%s\t(void) close(i);\n", sp); 917 /* Redirect stderr and stdout to console */ 918 f_print(fout, "%si = open(\"/dev/console\", 2);\n", sp); 919 f_print(fout, "%s(void) dup2(i, 1);\n", sp); 920 f_print(fout, "%s(void) dup2(i, 2);\n", sp); 921 /* This removes control of the controlling terminal */ 922 if (tirpcflag) 923 f_print(fout, "%ssetsid();\n", sp); 924 else { 925 f_print(fout, "%si = open(\"/dev/tty\", 2);\n", sp); 926 f_print(fout, "%sif (i >= 0) {\n", sp); 927 f_print(fout, "%s\t(void) ioctl(i, TIOCNOTTY, (char *)NULL);\n", sp);; 928 f_print(fout, "%s\t(void) close(i);\n", sp); 929 f_print(fout, "%s}\n", sp); 930 } 931 if (!logflag) 932 open_log_file(infile, sp); 933 f_print(fout, "#endif\n"); 934 if (logflag) 935 open_log_file(infile, sp); 936 } 937 938 static void 939 open_log_file(infile, sp) 940 char *infile; 941 char *sp; 942 { 943 char *s, *p; 944 945 s = strrchr(infile, '.'); 946 if (s) 947 *s = '\0'; 948 p = strrchr(infile, '/'); 949 if (p) 950 p++; 951 else 952 p = infile; 953 f_print(fout, "%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, p); 954 if (s) 955 *s = '.'; 956 } 957 958 /* 959 * write a registration for the given transport for Inetd 960 */ 961 void 962 write_inetd_register(transp) 963 char *transp; 964 { 965 list *l; 966 definition *def; 967 version_list *vp; 968 char *sp; 969 int isudp; 970 char tmpbuf[32]; 971 972 if (inetdflag) 973 sp = "\t"; 974 else 975 sp = ""; 976 if (streq(transp, "udp")) 977 isudp = 1; 978 else 979 isudp = 0; 980 f_print(fout, "\n"); 981 if (inetdflag) { 982 f_print(fout, "\tif ((_rpcfdtype == 0) || (_rpcfdtype == %s)) {\n", 983 isudp ? "SOCK_DGRAM" : "SOCK_STREAM"); 984 } 985 if (inetdflag && streq(transp, "tcp")) { 986 f_print(fout, "%s\tif (_rpcpmstart)\n", sp); 987 988 f_print(fout, "%s\t\t%s = svc%s_create(%s", 989 sp, TRANSP, "fd", inetdflag ? "sock" : "RPC_ANYSOCK"); 990 if (!isudp) 991 f_print(fout, ", 0, 0"); 992 f_print(fout, ");\n"); 993 994 f_print(fout, "%s\telse\n", sp); 995 996 f_print(fout, "%s\t\t%s = svc%s_create(%s", 997 sp, TRANSP, transp, inetdflag ? "sock" : "RPC_ANYSOCK"); 998 if (!isudp) 999 f_print(fout, ", 0, 0"); 1000 f_print(fout, ");\n"); 1001 1002 } else { 1003 f_print(fout, "%s\t%s = svc%s_create(%s", 1004 sp, TRANSP, transp, inetdflag ? "sock" : "RPC_ANYSOCK"); 1005 if (!isudp) 1006 f_print(fout, ", 0, 0"); 1007 f_print(fout, ");\n"); 1008 } 1009 f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP); 1010 (void) sprintf(_errbuf, "cannot create %s service.", transp); 1011 (void) sprintf(tmpbuf, "%s\t\t", sp); 1012 print_err_message(tmpbuf); 1013 f_print(fout, "%s\t\texit(1);\n", sp); 1014 f_print(fout, "%s\t}\n", sp); 1015 1016 if (inetdflag) { 1017 f_print(fout, "%s\tif (!_rpcpmstart)\n\t", sp); 1018 f_print(fout, "%s\tproto = IPPROTO_%s;\n", 1019 sp, isudp ? "UDP" : "TCP"); 1020 } 1021 for (l = defined; l != NULL; l = l->next) { 1022 def = (definition *) l->val; 1023 if (def->def_kind != DEF_PROGRAM) { 1024 continue; 1025 } 1026 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 1027 f_print(fout, "%s\tif (!svc_register(%s, %s, %s, ", 1028 sp, TRANSP, def->def_name, vp->vers_name); 1029 pvname(def->def_name, vp->vers_num); 1030 if (inetdflag) 1031 f_print(fout, ", proto)) {\n"); 1032 else 1033 f_print(fout, ", IPPROTO_%s)) {\n", 1034 isudp ? "UDP" : "TCP"); 1035 (void) sprintf(_errbuf, "unable to register (%s, %s, %s).", 1036 def->def_name, vp->vers_name, transp); 1037 print_err_message(tmpbuf); 1038 f_print(fout, "%s\t\texit(1);\n", sp); 1039 f_print(fout, "%s\t}\n", sp); 1040 } 1041 } 1042 if (inetdflag) 1043 f_print(fout, "\t}\n"); 1044 } 1045
Indexes created Wed Sep 24 02:09:48 GMT 2025