Annotation of src/usr.bin/rpcgen/rpc_svcout.c, Revision 1.9
1.8 deraadt 1: /* $OpenBSD: rpc_svcout.c,v 1.7 2001/11/24 17:59:22 miod Exp $ */
1.1 deraadt 2: /* $NetBSD: rpc_svcout.c,v 1.7 1995/06/24 14:59:59 pk Exp $ */
3: /*
4: * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
5: * unrestricted use provided that this legend is included on all tape
6: * media and as a part of the software program in whole or part. Users
7: * may copy or modify Sun RPC without charge, but are not authorized
8: * to license or distribute it to anyone else except as part of a product or
9: * program developed by the user or with the express written consent of
10: * Sun Microsystems, Inc.
11: *
12: * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
13: * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
14: * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
15: *
16: * Sun RPC is provided with no support and without any obligation on the
17: * part of Sun Microsystems, Inc. to assist in its use, correction,
18: * modification or enhancement.
19: *
20: * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
21: * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
22: * OR ANY PART THEREOF.
23: *
24: * In no event will Sun Microsystems, Inc. be liable for any lost revenue
25: * or profits or other special, indirect and consequential damages, even if
26: * Sun has been advised of the possibility of such damages.
27: *
28: * Sun Microsystems, Inc.
29: * 2550 Garcia Avenue
30: * Mountain View, California 94043
31: */
32:
33: #ifndef lint
34: static char sccsid[] = "@(#)rpc_svcout.c 1.29 89/03/30 (C) 1987 SMI";
35: #endif
36:
37: /*
38: * rpc_svcout.c, Server-skeleton outputter for the RPC protocol compiler
39: */
40: #include <sys/cdefs.h>
41: #include <stdio.h>
42: #include <string.h>
43: #include "rpc_parse.h"
44: #include "rpc_util.h"
45:
46: static char RQSTP[] = "rqstp";
47: static char TRANSP[] = "transp";
48: static char ARG[] = "argument";
49: static char RESULT[] = "result";
50: static char ROUTINE[] = "local";
51:
52: char _errbuf[256]; /* For all messages */
53:
1.5 deraadt 54: void internal_proctype __P((proc_list *));
55: static write_real_program __P((definition *));
56: static write_program __P((definition *, char *));
57: static printerr __P((char *, char *));
58: static printif __P((char *, char *, char *, char *));
59: static write_inetmost __P((char *));
60: static print_return __P((char *));
61: static print_pmapunset __P((char *));
62: static print_err_message __P((char *));
63: static write_timeout_func __P((void));
64: static write_pm_most __P((char *, int));
65: static write_caller_func __P((void));
66: static write_rpc_svc_fg __P((char *, char *));
67: static open_log_file __P((char *, char *));
1.1 deraadt 68:
1.5 deraadt 69: static
1.9 ! deraadt 70: p_xdrfunc( rname, typename )
! 71: char* rname;
! 72: char* typename;
! 73: {
! 74: if( Cflag )
! 75: f_print(fout, "\t\txdr_%s = (xdrproc_t) xdr_%s;\n", rname,
! 76: stringfix(typename) );
! 77: else
! 78: f_print(fout, "\t\txdr_%s = xdr_%s;\n", rname, stringfix(typename) );
! 79: }
1.1 deraadt 80:
1.5 deraadt 81: void
1.1 deraadt 82: internal_proctype(plist)
83: proc_list *plist;
84: {
85: f_print(fout, "static ");
1.9 ! deraadt 86: ptype( plist->res_prefix, plist->res_type, 1 );
! 87: f_print( fout, "*" );
1.1 deraadt 88: }
89:
1.9 ! deraadt 90:
1.1 deraadt 91: /*
1.9 ! deraadt 92: * write most of the service, that is, everything but the registrations.
1.1 deraadt 93: */
94: void
95: write_most(infile, netflag, nomain)
96: char *infile; /* our name */
97: int netflag;
1.9 ! deraadt 98: int nomain;
1.1 deraadt 99: {
100: if (inetdflag || pmflag) {
1.9 ! deraadt 101: char* var_type;
1.1 deraadt 102: var_type = (nomain? "extern" : "static");
1.9 ! deraadt 103: f_print(fout, "%s int _rpcpmstart;", var_type );
! 104: f_print(fout, "\t\t/* Started by a port monitor ? */\n");
! 105: f_print(fout, "%s int _rpcfdtype;", var_type );
1.1 deraadt 106: f_print(fout, "\t\t/* Whether Stream or Datagram ? */\n");
107: if (timerflag) {
1.9 ! deraadt 108: f_print(fout, "%s int _rpcsvcdirty;", var_type );
1.1 deraadt 109: f_print(fout, "\t/* Still serving ? */\n");
110: }
1.9 ! deraadt 111: write_svc_aux( nomain );
1.1 deraadt 112: }
113: /* write out dispatcher and stubs */
1.9 ! deraadt 114: write_programs( nomain? (char *)NULL : "static" );
1.1 deraadt 115:
1.9 ! deraadt 116: if( nomain )
! 117: return;
1.1 deraadt 118:
119: f_print(fout, "\nmain()\n");
120: f_print(fout, "{\n");
121: if (inetdflag) {
122: write_inetmost(infile); /* Includes call to write_rpc_svc_fg() */
123: } else {
1.9 ! deraadt 124: if( tirpcflag ) {
1.1 deraadt 125: if (netflag) {
1.6 deraadt 126: f_print(fout, "\tSVCXPRT *%s;\n", TRANSP);
1.1 deraadt 127: f_print(fout, "\tstruct netconfig *nconf = NULL;\n");
128: }
129: f_print(fout, "\tpid_t pid;\n");
130: f_print(fout, "\tint i;\n");
131: f_print(fout, "\tchar mname[FMNAMESZ + 1];\n\n");
132: write_pm_most(infile, netflag);
133: f_print(fout, "\telse {\n");
134: write_rpc_svc_fg(infile, "\t\t");
135: f_print(fout, "\t}\n");
136: } else {
1.6 deraadt 137: f_print(fout, "\tSVCXPRT *%s;\n", TRANSP);
1.1 deraadt 138: f_print(fout, "\n");
139: print_pmapunset("\t");
140: }
141: }
142:
143: if (logflag && !inetdflag) {
144: open_log_file(infile, "\t");
145: }
146: }
147:
148: /*
1.9 ! deraadt 149: * write a registration for the given transport
1.1 deraadt 150: */
151: void
152: write_netid_register(transp)
153: char *transp;
154: {
155: list *l;
156: definition *def;
157: version_list *vp;
158: char *sp;
159: char tmpbuf[32];
160:
161: sp = "";
162: f_print(fout, "\n");
163: f_print(fout, "%s\tnconf = getnetconfigent(\"%s\");\n", sp, transp);
164: f_print(fout, "%s\tif (nconf == NULL) {\n", sp);
165: (void) sprintf(_errbuf, "cannot find %s netid.", transp);
1.9 ! deraadt 166: sprintf(tmpbuf, "%s\t\t", sp);
1.1 deraadt 167: print_err_message(tmpbuf);
168: f_print(fout, "%s\t\texit(1);\n", sp);
169: f_print(fout, "%s\t}\n", sp);
170: f_print(fout, "%s\t%s = svc_tli_create(RPC_ANYFD, nconf, 0, 0, 0);\n",
1.9 ! deraadt 171: sp, TRANSP);
1.1 deraadt 172: f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP);
173: (void) sprintf(_errbuf, "cannot create %s service.", transp);
174: print_err_message(tmpbuf);
175: f_print(fout, "%s\t\texit(1);\n", sp);
176: f_print(fout, "%s\t}\n", sp);
177:
178: for (l = defined; l != NULL; l = l->next) {
179: def = (definition *) l->val;
1.9 ! deraadt 180: if (def->def_kind != DEF_PROGRAM) {
1.1 deraadt 181: continue;
1.9 ! deraadt 182: }
1.1 deraadt 183: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
184: f_print(fout,
1.9 ! deraadt 185: "%s\t(void) rpcb_unset(%s, %s, nconf);\n",
! 186: sp, def->def_name, vp->vers_name);
1.1 deraadt 187: f_print(fout,
1.9 ! deraadt 188: "%s\tif (!svc_reg(%s, %s, %s, ",
! 189: sp, TRANSP, def->def_name, vp->vers_name);
1.1 deraadt 190: pvname(def->def_name, vp->vers_num);
191: f_print(fout, ", nconf)) {\n");
192: (void) sprintf(_errbuf, "unable to register (%s, %s, %s).",
1.9 ! deraadt 193: def->def_name, vp->vers_name, transp);
1.1 deraadt 194: print_err_message(tmpbuf);
195: f_print(fout, "%s\t\texit(1);\n", sp);
196: f_print(fout, "%s\t}\n", sp);
197: }
198: }
199: f_print(fout, "%s\tfreenetconfigent(nconf);\n", sp);
200: }
201:
202: /*
203: * write a registration for the given transport for TLI
204: */
205: void
206: write_nettype_register(transp)
207: char *transp;
208: {
209: list *l;
210: definition *def;
211: version_list *vp;
212:
213: for (l = defined; l != NULL; l = l->next) {
214: def = (definition *) l->val;
1.9 ! deraadt 215: if (def->def_kind != DEF_PROGRAM) {
1.1 deraadt 216: continue;
1.9 ! deraadt 217: }
1.1 deraadt 218: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
219: f_print(fout, "\tif (!svc_create(");
220: pvname(def->def_name, vp->vers_num);
1.6 deraadt 221: f_print(fout, ", %s, %s, \"%s\")) {\n",
1.9 ! deraadt 222: def->def_name, vp->vers_name, transp);
1.1 deraadt 223: (void) sprintf(_errbuf,
1.9 ! deraadt 224: "unable to create (%s, %s) for %s.",
! 225: def->def_name, vp->vers_name, transp);
1.1 deraadt 226: print_err_message("\t\t");
227: f_print(fout, "\t\texit(1);\n");
228: f_print(fout, "\t}\n");
229: }
230: }
231: }
232:
233: /*
1.9 ! deraadt 234: * write the rest of the service
1.1 deraadt 235: */
236: void
237: write_rest()
238: {
239: f_print(fout, "\n");
240: if (inetdflag) {
241: f_print(fout, "\tif (%s == (SVCXPRT *)NULL) {\n", TRANSP);
242: (void) sprintf(_errbuf, "could not create a handle");
243: print_err_message("\t\t");
244: f_print(fout, "\t\texit(1);\n");
245: f_print(fout, "\t}\n");
246: if (timerflag) {
247: f_print(fout, "\tif (_rpcpmstart) {\n");
1.9 ! deraadt 248: f_print(fout,
! 249: "\t\t(void) signal(SIGALRM, %s closedown);\n",
! 250: Cflag? "(SIG_PF)" : "(void(*)())" );
1.1 deraadt 251: f_print(fout, "\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n");
252: f_print(fout, "\t}\n");
253: }
254: }
255: f_print(fout, "\tsvc_run();\n");
256: (void) sprintf(_errbuf, "svc_run returned");
257: print_err_message("\t");
258: f_print(fout, "\texit(1);\n");
259: f_print(fout, "\t/* NOTREACHED */\n");
260: f_print(fout, "}\n");
261: }
262:
263: void
264: write_programs(storage)
265: char *storage;
266: {
1.9 ! deraadt 267: list *l;
1.8 deraadt 268: definition *def;
1.1 deraadt 269:
270: /* write out stubs for procedure definitions */
271: for (l = defined; l != NULL; l = l->next) {
272: def = (definition *) l->val;
1.9 ! deraadt 273: if (def->def_kind == DEF_PROGRAM) {
1.1 deraadt 274: write_real_program(def);
1.9 ! deraadt 275: }
1.1 deraadt 276: }
277:
278: /* write out dispatcher for each program */
279: for (l = defined; l != NULL; l = l->next) {
280: def = (definition *) l->val;
1.9 ! deraadt 281: if (def->def_kind == DEF_PROGRAM) {
1.1 deraadt 282: write_program(def, storage);
1.9 ! deraadt 283: }
1.1 deraadt 284: }
1.9 ! deraadt 285:
! 286:
1.1 deraadt 287: }
288:
289: /* write out definition of internal function (e.g. _printmsg_1(...))
290: which calls server's defintion of actual function (e.g. printmsg_1(...)).
291: Unpacks single user argument of printmsg_1 to call-by-value format
292: expected by printmsg_1. */
1.5 deraadt 293: static
1.1 deraadt 294: write_real_program(def)
295: definition *def;
296: {
297: version_list *vp;
298: proc_list *proc;
299: decl_list *l;
300:
1.9 ! deraadt 301: if( !newstyle ) return; /* not needed for old style */
1.1 deraadt 302: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
303: for (proc = vp->procs; proc != NULL; proc = proc->next) {
304: f_print(fout, "\n");
305: internal_proctype(proc);
306: f_print(fout, "\n_");
307: pvname(proc->proc_name, vp->vers_num);
1.9 ! deraadt 308: if( Cflag ) {
! 309: f_print(fout, "(" );
1.1 deraadt 310: /* arg name */
311: if (proc->arg_num > 1)
312: f_print(fout, proc->args.argname);
313: else
1.9 ! deraadt 314: ptype(proc->args.decls->decl.prefix,
1.1 deraadt 315: proc->args.decls->decl.type, 0);
1.9 ! deraadt 316: f_print(fout, " *argp, struct svc_req *%s)\n",
1.1 deraadt 317: RQSTP);
318: } else {
1.9 ! deraadt 319: f_print(fout, "(argp, %s)\n", RQSTP );
1.1 deraadt 320: /* arg name */
321: if (proc->arg_num > 1)
322: f_print(fout, "\t%s *argp;\n", proc->args.argname);
323: else {
324: f_print(fout, "\t");
1.9 ! deraadt 325: ptype(proc->args.decls->decl.prefix,
1.1 deraadt 326: proc->args.decls->decl.type, 0);
327: f_print(fout, " *argp;\n");
328: }
329: f_print(fout, " struct svc_req *%s;\n", RQSTP);
330: }
331:
332: f_print(fout, "{\n");
333: f_print(fout, "\treturn(");
334: pvname_svc(proc->proc_name, vp->vers_num);
335: f_print(fout, "(");
336: if (proc->arg_num < 2) { /* single argument */
1.9 ! deraadt 337: if (!streq( proc->args.decls->decl.type, "void"))
1.1 deraadt 338: f_print(fout, "*argp, "); /* non-void */
339: } else {
1.9 ! deraadt 340: for (l = proc->args.decls; l != NULL; l = l->next)
1.1 deraadt 341: f_print(fout, "argp->%s, ", l->decl.name);
342: }
343: f_print(fout, "%s));\n}\n", RQSTP);
1.9 ! deraadt 344: }
1.1 deraadt 345: }
346: }
347:
1.9 ! deraadt 348: static
1.1 deraadt 349: write_program(def, storage)
350: definition *def;
351: char *storage;
352: {
353: version_list *vp;
354: proc_list *proc;
355: int filled;
356:
357: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
358: f_print(fout, "\n");
1.9 ! deraadt 359: if (storage != NULL) {
1.1 deraadt 360: f_print(fout, "%s ", storage);
1.9 ! deraadt 361: }
1.1 deraadt 362: f_print(fout, "void\n");
363: pvname(def->def_name, vp->vers_num);
364:
365: if (Cflag) {
1.9 ! deraadt 366: f_print(fout, "(struct svc_req *%s, ", RQSTP);
! 367: f_print(fout, "register SVCXPRT *%s)\n", TRANSP);
1.1 deraadt 368: } else {
1.9 ! deraadt 369: f_print(fout, "(%s, %s)\n", RQSTP, TRANSP);
! 370: f_print(fout, " struct svc_req *%s;\n", RQSTP);
! 371: f_print(fout, " register SVCXPRT *%s;\n", TRANSP);
1.1 deraadt 372: }
1.9 ! deraadt 373:
1.1 deraadt 374: f_print(fout, "{\n");
375:
376: filled = 0;
377: f_print(fout, "\tunion {\n");
378: for (proc = vp->procs; proc != NULL; proc = proc->next) {
379: if (proc->arg_num < 2) { /* single argument */
1.9 ! deraadt 380: if (streq(proc->args.decls->decl.type,
! 381: "void")) {
1.1 deraadt 382: continue;
1.9 ! deraadt 383: }
1.1 deraadt 384: filled = 1;
385: f_print(fout, "\t\t");
1.9 ! deraadt 386: ptype(proc->args.decls->decl.prefix,
! 387: proc->args.decls->decl.type, 0);
1.1 deraadt 388: pvname(proc->proc_name, vp->vers_num);
389: f_print(fout, "_arg;\n");
390:
1.9 ! deraadt 391: }
! 392: else {
1.1 deraadt 393: filled = 1;
394: f_print(fout, "\t\t%s", proc->args.argname);
395: f_print(fout, " ");
396: pvname(proc->proc_name, vp->vers_num);
397: f_print(fout, "_arg;\n");
398: }
399: }
1.9 ! deraadt 400: if (!filled) {
1.1 deraadt 401: f_print(fout, "\t\tint fill;\n");
1.9 ! deraadt 402: }
1.1 deraadt 403: f_print(fout, "\t} %s;\n", ARG);
404: f_print(fout, "\tchar *%s;\n", RESULT);
405:
406: if (Cflag) {
1.9 ! deraadt 407: f_print(fout, "\txdrproc_t xdr_%s, xdr_%s;\n", ARG, RESULT);
! 408: f_print(fout,
1.1 deraadt 409: "\tchar *(*%s)(char *, struct svc_req *);\n",
410: ROUTINE);
411: } else {
1.9 ! deraadt 412: f_print(fout, "\tbool_t (*xdr_%s)(), (*xdr_%s)();\n", ARG, RESULT);
! 413: f_print(fout, "\tchar *(*%s)();\n", ROUTINE);
1.1 deraadt 414: }
1.9 ! deraadt 415:
1.1 deraadt 416: f_print(fout, "\n");
417:
1.9 ! deraadt 418: if (callerflag)
1.1 deraadt 419: f_print(fout, "\tcaller = transp;\n"); /*EVAS*/
420: if (timerflag)
421: f_print(fout, "\t_rpcsvcdirty = 1;\n");
422: f_print(fout, "\tswitch (%s->rq_proc) {\n", RQSTP);
423: if (!nullproc(vp->procs)) {
424: f_print(fout, "\tcase NULLPROC:\n");
425: f_print(fout,
1.9 ! deraadt 426: Cflag
! 427: ? "\t\t(void) svc_sendreply(%s, (xdrproc_t) xdr_void, (char *)NULL);\n"
! 428: : "\t\t(void) svc_sendreply(%s, xdr_void, (char *)NULL);\n",
! 429: TRANSP);
1.1 deraadt 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 */
1.9 ! deraadt 436: p_xdrfunc( ARG, proc->args.decls->decl.type);
1.1 deraadt 437: } else {
1.9 ! deraadt 438: p_xdrfunc( ARG, proc->args.argname);
1.1 deraadt 439: }
1.9 ! deraadt 440: p_xdrfunc( RESULT, proc->res_type);
! 441: if( Cflag )
! 442: f_print(fout,
1.1 deraadt 443: "\t\t%s = (char *(*)(char *, struct svc_req *)) ",
444: ROUTINE);
445: else
1.9 ! deraadt 446: f_print(fout, "\t\t%s = (char *(*)()) ", ROUTINE);
1.1 deraadt 447:
448: if (newstyle) { /* new style: calls internal routine */
449: f_print(fout,"_");
450: }
1.9 ! deraadt 451: if (!newstyle )
! 452: pvname_svc(proc->proc_name, vp->vers_num);
1.1 deraadt 453: else
1.9 ! deraadt 454: pvname(proc->proc_name, vp->vers_num);
1.1 deraadt 455: f_print(fout, ";\n");
456: f_print(fout, "\t\tbreak;\n\n");
457: }
458: f_print(fout, "\tdefault:\n");
459: printerr("noproc", TRANSP);
460: print_return("\t\t");
461: f_print(fout, "\t}\n");
462:
463: f_print(fout, "\t(void) memset((char *)&%s, 0, sizeof (%s));\n", ARG, ARG);
1.9 ! deraadt 464: printif("getargs", TRANSP, "(caddr_t) &", ARG);
1.1 deraadt 465: printerr("decode", TRANSP);
466: print_return("\t\t");
467: f_print(fout, "\t}\n");
468:
469: if (Cflag)
1.9 ! deraadt 470: f_print(fout, "\t%s = (*%s)((char *)&%s, %s);\n",
1.1 deraadt 471: RESULT, ROUTINE, ARG, RQSTP);
472: else
1.9 ! deraadt 473: f_print(fout, "\t%s = (*%s)(&%s, %s);\n",
1.1 deraadt 474: RESULT, ROUTINE, ARG, RQSTP);
1.9 ! deraadt 475: f_print(fout,
! 476: "\tif (%s != NULL && !svc_sendreply(%s, xdr_%s, %s)) {\n",
! 477: RESULT, TRANSP, RESULT, RESULT);
1.1 deraadt 478: printerr("systemerr", TRANSP);
479: f_print(fout, "\t}\n");
480:
1.9 ! deraadt 481: printif("freeargs", TRANSP, "(caddr_t) &", ARG);
1.1 deraadt 482: (void) sprintf(_errbuf, "unable to free arguments");
483: print_err_message("\t\t");
484: f_print(fout, "\t\texit(1);\n");
485: f_print(fout, "\t}\n");
486: print_return("\t");
487: f_print(fout, "}\n");
488: }
489: }
490:
1.5 deraadt 491: static
1.1 deraadt 492: printerr(err, transp)
493: char *err;
494: char *transp;
495: {
496: f_print(fout, "\t\tsvcerr_%s(%s);\n", err, transp);
497: }
498:
1.5 deraadt 499: static
1.9 ! deraadt 500: printif(proc, transp, prefix, arg)
1.1 deraadt 501: char *proc;
502: char *transp;
503: char *prefix;
504: char *arg;
505: {
506: f_print(fout, "\tif (!svc_%s(%s, xdr_%s, %s%s)) {\n",
1.9 ! deraadt 507: proc, transp, arg, prefix, arg);
1.1 deraadt 508: }
509:
510: nullproc(proc)
511: proc_list *proc;
512: {
513: for (; proc != NULL; proc = proc->next) {
1.9 ! deraadt 514: if (streq(proc->proc_num, "0")) {
1.1 deraadt 515: return (1);
1.9 ! deraadt 516: }
1.1 deraadt 517: }
518: return (0);
519: }
520:
1.5 deraadt 521: static
1.1 deraadt 522: write_inetmost(infile)
523: char *infile;
524: {
525: f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP);
526: f_print(fout, "\tint sock;\n");
527: f_print(fout, "\tint proto;\n");
528: f_print(fout, "\tstruct sockaddr_in saddr;\n");
529: f_print(fout, "\tint asize = sizeof (saddr);\n");
530: f_print(fout, "\n");
1.9 ! deraadt 531: f_print(fout,
1.1 deraadt 532: "\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n");
533: f_print(fout, "\t\tint ssize = sizeof (int);\n\n");
534: f_print(fout, "\t\tif (saddr.sin_family != AF_INET)\n");
535: f_print(fout, "\t\t\texit(1);\n");
536: f_print(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n");
1.6 deraadt 537: f_print(fout, "\t\t (char *)&_rpcfdtype, &ssize) == -1)\n");
1.1 deraadt 538: f_print(fout, "\t\t\texit(1);\n");
539: f_print(fout, "\t\tsock = 0;\n");
540: f_print(fout, "\t\t_rpcpmstart = 1;\n");
541: f_print(fout, "\t\tproto = 0;\n");
542: open_log_file(infile, "\t\t");
543: f_print(fout, "\t} else {\n");
544: write_rpc_svc_fg(infile, "\t\t");
545: f_print(fout, "\t\tsock = RPC_ANYSOCK;\n");
546: print_pmapunset("\t\t");
547: f_print(fout, "\t}\n");
548: }
549:
1.5 deraadt 550: static
1.1 deraadt 551: print_return(space)
552: char *space;
553: {
554: if (exitnow)
555: f_print(fout, "%sexit(0);\n", space);
556: else {
557: if (timerflag)
558: f_print(fout, "%s_rpcsvcdirty = 0;\n", space);
559: f_print(fout, "%sreturn;\n", space);
560: }
561: }
562:
1.5 deraadt 563: static
1.1 deraadt 564: print_pmapunset(space)
565: char *space;
566: {
1.9 ! deraadt 567: list *l;
! 568: definition *def;
1.8 deraadt 569: version_list *vp;
1.1 deraadt 570:
571: for (l = defined; l != NULL; l = l->next) {
572: def = (definition *) l->val;
573: if (def->def_kind == DEF_PROGRAM) {
574: for (vp = def->def.pr.versions; vp != NULL;
1.9 ! deraadt 575: vp = vp->next) {
1.1 deraadt 576: f_print(fout, "%s(void) pmap_unset(%s, %s);\n",
1.9 ! deraadt 577: space, def->def_name, vp->vers_name);
1.1 deraadt 578: }
579: }
580: }
581: }
582:
1.5 deraadt 583: static
1.1 deraadt 584: print_err_message(space)
585: char *space;
586: {
587: if (logflag)
588: f_print(fout, "%ssyslog(LOG_ERR, \"%s\");\n", space, _errbuf);
589: else if (inetdflag || pmflag)
590: f_print(fout, "%s_msgout(\"%s\");\n", space, _errbuf);
591: else
592: f_print(fout, "%sfprintf(stderr, \"%s\");\n", space, _errbuf);
593: }
594:
595: /*
1.9 ! deraadt 596: * Write the server auxiliary function ( _msgout, timeout)
1.1 deraadt 597: */
598: void
1.9 ! deraadt 599: write_svc_aux( nomain )
1.1 deraadt 600: int nomain;
601: {
602: if (!logflag)
603: write_msg_out();
1.9 ! deraadt 604: if( !nomain )
! 605: write_timeout_func();
1.1 deraadt 606: if (callerflag) /*EVAS*/
607: write_caller_func(); /*EVAS*/
608: }
609:
610: /*
611: * Write the _msgout function
612: */
613:
614: write_msg_out()
615: {
616: f_print(fout, "\n");
617: f_print(fout, "static\n");
1.9 ! deraadt 618: if( !Cflag ) {
! 619: f_print(fout, "void _msgout(msg)\n");
! 620: f_print(fout, "\tchar *msg;\n");
1.1 deraadt 621: } else {
1.9 ! deraadt 622: f_print(fout, "void _msgout(char* msg)\n");
1.1 deraadt 623: }
624: f_print(fout, "{\n");
625: f_print(fout, "#ifdef RPC_SVC_FG\n");
626: if (inetdflag || pmflag)
627: f_print(fout, "\tif (_rpcpmstart)\n");
628: f_print(fout, "\t\tsyslog(LOG_ERR, msg);\n");
1.6 deraadt 629: f_print(fout, "\telse {\n");
630: f_print(fout, "\t\t(void) write(STDERR_FILENO, msg, strlen(msg));\n");
631: f_print(fout, "\t\t(void) write(STDERR_FILENO, \"\\n\", 1);\n");
632: f_print(fout, "\t}\n#else\n");
1.1 deraadt 633: f_print(fout, "\tsyslog(LOG_ERR, msg);\n");
634: f_print(fout, "#endif\n");
635: f_print(fout, "}\n");
636: }
637:
638: /*
639: * Write the timeout function
640: */
1.5 deraadt 641: static
1.1 deraadt 642: write_timeout_func()
643: {
644: if (!timerflag)
645: return;
646: f_print(fout, "\n");
647: f_print(fout, "static void\n");
648: f_print(fout, "closedown()\n");
649: f_print(fout, "{\n");
1.6 deraadt 650: f_print(fout, "\tint save_errno = errno;\n\n");
1.1 deraadt 651: f_print(fout, "\tif (_rpcsvcdirty == 0) {\n");
1.3 deraadt 652: f_print(fout, "\t\textern fd_set *__svc_fdset;\n");
653: f_print(fout, "\t\textern int __svc_fdsetsize;\n");
1.1 deraadt 654: f_print(fout, "\t\tint i, openfd;\n");
655: if (tirpcflag && pmflag) {
656: f_print(fout, "\t\tstruct t_info tinfo;\n\n");
657: f_print(fout, "\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n");
658: } else {
659: f_print(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n");
660: }
1.6 deraadt 661: f_print(fout, "\t\t\t_exit(0);\n");
1.3 deraadt 662: f_print(fout, "\t\tfor (i = 0, openfd = 0; i < __svc_fdsetsize && openfd < 2; i++)\n");
663: f_print(fout, "\t\t\tif (FD_ISSET(i, __svc_fdset))\n");
1.1 deraadt 664: f_print(fout, "\t\t\t\topenfd++;\n");
665: f_print(fout, "\t\tif (openfd <= (_rpcpmstart?0:1))\n");
1.6 deraadt 666: f_print(fout, "\t\t\t_exit(0);\n");
1.1 deraadt 667: f_print(fout, "\t}\n");
668: f_print(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN);\n");
1.6 deraadt 669: f_print(fout, "\terrno = save_errno;\n");
1.1 deraadt 670: f_print(fout, "}\n");
671: }
672:
1.5 deraadt 673: static
1.1 deraadt 674: write_caller_func() /*EVAS*/
675: {
676: #define P(s) f_print(fout, s);
677:
678: P("\n");
679: P("char *svc_caller()\n");
680: P("{\n");
681: P(" struct sockaddr_in actual;\n");
682: P(" struct hostent *hp;\n");
683: P(" static struct in_addr prev;\n");
684: P(" static char cname[128];\n\n");
685:
686: P(" actual = *svc_getcaller(caller);\n\n");
687:
688: P(" if (memcmp((char *)&actual.sin_addr, (char *)&prev,\n");
689: P(" sizeof(struct in_addr)) == 0)\n");
690: P(" return (cname);\n\n");
691:
692: P(" prev = actual.sin_addr;\n\n");
693:
694: P(" hp = gethostbyaddr((char *) &actual.sin_addr, sizeof(actual.sin_addr), AF_INET);\n");
695: P(" if (hp == NULL) { /* dummy one up */\n");
696: P(" extern char *inet_ntoa();\n");
697: P(" strcpy(cname, inet_ntoa(actual.sin_addr));\n");
698: P(" } else {\n");
699: P(" strcpy(cname, hp->h_name);\n");
700: P(" }\n\n");
701:
702: P(" return (cname);\n");
703: P("}\n");
704:
705: #undef P
706: }
707:
708: /*
709: * Write the most of port monitor support
710: */
1.5 deraadt 711: static
1.1 deraadt 712: write_pm_most(infile, netflag)
713: char *infile;
714: int netflag;
715: {
716: list *l;
717: definition *def;
718: version_list *vp;
719:
720: f_print(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n");
721: f_print(fout, "\t\t(!strcmp(mname, \"sockmod\") ||");
722: f_print(fout, " !strcmp(mname, \"timod\"))) {\n");
723: f_print(fout, "\t\tchar *netid;\n");
724: if (!netflag) { /* Not included by -n option */
725: f_print(fout, "\t\tstruct netconfig *nconf = NULL;\n");
726: f_print(fout, "\t\tSVCXPRT *%s;\n", TRANSP);
727: }
1.9 ! deraadt 728: if( timerflag )
1.1 deraadt 729: f_print(fout, "\t\tint pmclose;\n");
730: /* not necessary, defined in /usr/include/stdlib */
731: /* f_print(fout, "\t\textern char *getenv();\n");*/
732: f_print(fout, "\n");
733: f_print(fout, "\t\t_rpcpmstart = 1;\n");
734: if (logflag)
735: open_log_file(infile, "\t\t");
736: f_print(fout, "\t\tif ((netid = getenv(\"NLSPROVIDER\")) == NULL) {\n");
737: sprintf(_errbuf, "cannot get transport name");
738: print_err_message("\t\t\t");
739: f_print(fout, "\t\t} else if ((nconf = getnetconfigent(netid)) == NULL) {\n");
740: sprintf(_errbuf, "cannot get transport info");
741: print_err_message("\t\t\t");
742: f_print(fout, "\t\t}\n");
743: /*
744: * A kludgy support for inetd services. Inetd only works with
745: * sockmod, and RPC works only with timod, hence all this jugglery
746: */
747: f_print(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n");
748: f_print(fout, "\t\t\tif (ioctl(0, I_POP, 0) || ioctl(0, I_PUSH, \"timod\")) {\n");
749: sprintf(_errbuf, "could not get the right module");
750: print_err_message("\t\t\t\t");
751: f_print(fout, "\t\t\t\texit(1);\n");
752: f_print(fout, "\t\t\t}\n");
753: f_print(fout, "\t\t}\n");
1.9 ! deraadt 754: if( timerflag )
1.1 deraadt 755: f_print(fout, "\t\tpmclose = (t_getstate(0) != T_DATAXFER);\n");
756: f_print(fout, "\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) == NULL) {\n",
757: TRANSP);
758: sprintf(_errbuf, "cannot create server handle");
759: print_err_message("\t\t\t");
760: f_print(fout, "\t\t\texit(1);\n");
761: f_print(fout, "\t\t}\n");
762: f_print(fout, "\t\tif (nconf)\n");
763: f_print(fout, "\t\t\tfreenetconfigent(nconf);\n");
764: for (l = defined; l != NULL; l = l->next) {
765: def = (definition *) l->val;
766: if (def->def_kind != DEF_PROGRAM) {
767: continue;
768: }
769: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
770: f_print(fout,
771: "\t\tif (!svc_reg(%s, %s, %s, ",
772: TRANSP, def->def_name, vp->vers_name);
773: pvname(def->def_name, vp->vers_num);
774: f_print(fout, ", 0)) {\n");
775: (void) sprintf(_errbuf, "unable to register (%s, %s).",
776: def->def_name, vp->vers_name);
777: print_err_message("\t\t\t");
778: f_print(fout, "\t\t\texit(1);\n");
779: f_print(fout, "\t\t}\n");
780: }
781: }
782: if (timerflag) {
783: f_print(fout, "\t\tif (pmclose) {\n");
784: f_print(fout, "\t\t\t(void) signal(SIGALRM, %s closedown);\n",
1.9 ! deraadt 785: Cflag? "(SIG_PF)" : "(void(*)())" );
1.1 deraadt 786: f_print(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n");
787: f_print(fout, "\t\t}\n");
788: }
789: f_print(fout, "\t\tsvc_run();\n");
790: f_print(fout, "\t\texit(1);\n");
791: f_print(fout, "\t\t/* NOTREACHED */\n");
792: f_print(fout, "\t}\n");
793: }
794:
795: /*
796: * Support for backgrounding the server if self started.
797: */
1.5 deraadt 798: static
1.1 deraadt 799: write_rpc_svc_fg(infile, sp)
800: char *infile;
801: char *sp;
802: {
803: f_print(fout, "#ifndef RPC_SVC_FG\n");
804: f_print(fout, "%sint size;\n", sp);
1.9 ! deraadt 805: if( tirpcflag )
1.1 deraadt 806: f_print(fout, "%sstruct rlimit rl;\n", sp);
807: if (inetdflag)
808: f_print(fout, "%sint pid, i;\n\n", sp);
809: f_print(fout, "%spid = fork();\n", sp);
810: f_print(fout, "%sif (pid < 0) {\n", sp);
811: f_print(fout, "%s\tperror(\"cannot fork\");\n", sp);
812: f_print(fout, "%s\texit(1);\n", sp);
813: f_print(fout, "%s}\n", sp);
814: f_print(fout, "%sif (pid)\n", sp);
815: f_print(fout, "%s\texit(0);\n", sp);
816: /* get number of file descriptors */
1.9 ! deraadt 817: if( tirpcflag ) {
1.1 deraadt 818: f_print(fout, "%srl.rlim_max = 0;\n", sp);
819: f_print(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp);
820: f_print(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp);
821: f_print(fout, "%s\texit(1);\n", sp);
822: } else {
823: f_print(fout, "%ssize = getdtablesize();\n", sp);
824: }
825:
826: f_print(fout, "%sfor (i = 0; i < size; i++)\n", sp);
827: f_print(fout, "%s\t(void) close(i);\n", sp);
828: /* Redirect stderr and stdout to console */
829: f_print(fout, "%si = open(\"/dev/console\", 2);\n", sp);
830: f_print(fout, "%s(void) dup2(i, 1);\n", sp);
831: f_print(fout, "%s(void) dup2(i, 2);\n", sp);
832: /* This removes control of the controlling terminal */
1.9 ! deraadt 833: if( tirpcflag )
1.1 deraadt 834: f_print(fout, "%ssetsid();\n", sp);
835: else {
836: f_print(fout, "%si = open(\"/dev/tty\", 2);\n", sp);
837: f_print(fout, "%sif (i >= 0) {\n", sp);
838: f_print(fout, "%s\t(void) ioctl(i, TIOCNOTTY, (char *)NULL);\n", sp);;
839: f_print(fout, "%s\t(void) close(i);\n", sp);
840: f_print(fout, "%s}\n", sp);
841: }
842: if (!logflag)
843: open_log_file(infile, sp);
844: f_print(fout, "#endif\n");
845: if (logflag)
846: open_log_file(infile, sp);
847: }
848:
1.5 deraadt 849: static
1.1 deraadt 850: open_log_file(infile, sp)
851: char *infile;
852: char *sp;
853: {
854: char *s;
855:
856: s = strrchr(infile, '.');
1.9 ! deraadt 857: if (s)
1.1 deraadt 858: *s = '\0';
859: f_print(fout,"%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, infile);
860: if (s)
861: *s = '.';
862: }
863:
1.9 ! deraadt 864:
! 865:
! 866:
1.1 deraadt 867: /*
868: * write a registration for the given transport for Inetd
869: */
870: void
871: write_inetd_register(transp)
872: char *transp;
873: {
874: list *l;
875: definition *def;
876: version_list *vp;
877: 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) {
1.6 deraadt 891: f_print(fout, "\tif (_rpcfdtype == 0 || _rpcfdtype == %s) {\n",
1.1 deraadt 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");
1.9 ! deraadt 941: else
1.1 deraadt 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: }
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