Annotation of src/usr.bin/rpcgen/rpc_svcout.c, Revision 1.3
1.3 ! deraadt 1: /* $OpenBSD: rpc_svcout.c,v 1.2 1996/06/26 05:38:40 deraadt 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:
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 *));
68:
69: static
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: }
80:
81: void
82: internal_proctype(plist)
83: proc_list *plist;
84: {
85: f_print(fout, "static ");
86: ptype( plist->res_prefix, plist->res_type, 1 );
87: f_print( fout, "*" );
88: }
89:
90:
91: /*
92: * write most of the service, that is, everything but the registrations.
93: */
94: void
95: write_most(infile, netflag, nomain)
96: char *infile; /* our name */
97: int netflag;
98: int nomain;
99: {
100: if (inetdflag || pmflag) {
101: char* var_type;
102: var_type = (nomain? "extern" : "static");
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 );
106: f_print(fout, "\t\t/* Whether Stream or Datagram ? */\n");
107: if (timerflag) {
108: f_print(fout, "%s int _rpcsvcdirty;", var_type );
109: f_print(fout, "\t/* Still serving ? */\n");
110: }
111: write_svc_aux( nomain );
112: }
113: /* write out dispatcher and stubs */
114: write_programs( nomain? (char *)NULL : "static" );
115:
116: if( nomain )
117: return;
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 {
124: if( tirpcflag ) {
125: if (netflag) {
126: f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP);
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 {
137: f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP);
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: /*
149: * write a registration for the given transport
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);
166: sprintf(tmpbuf, "%s\t\t", sp);
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",
171: sp, TRANSP, transp);
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;
180: if (def->def_kind != DEF_PROGRAM) {
181: continue;
182: }
183: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
184: f_print(fout,
185: "%s\t(void) rpcb_unset(%s, %s, nconf);\n",
186: sp, def->def_name, vp->vers_name);
187: f_print(fout,
188: "%s\tif (!svc_reg(%s, %s, %s, ",
189: sp, TRANSP, def->def_name, vp->vers_name);
190: pvname(def->def_name, vp->vers_num);
191: f_print(fout, ", nconf)) {\n");
192: (void) sprintf(_errbuf, "unable to register (%s, %s, %s).",
193: def->def_name, vp->vers_name, transp);
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;
215: if (def->def_kind != DEF_PROGRAM) {
216: continue;
217: }
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);
221: f_print(fout, ", %s, %s, \"%s\")) {\n ",
222: def->def_name, vp->vers_name, transp);
223: (void) sprintf(_errbuf,
224: "unable to create (%s, %s) for %s.",
225: def->def_name, vp->vers_name, transp);
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: /*
234: * write the rest of the service
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");
248: f_print(fout,
249: "\t\t(void) signal(SIGALRM, %s closedown);\n",
250: Cflag? "(SIG_PF)" : "(void(*)())" );
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: {
267: list *l;
268: definition *def;
269:
270: /* write out stubs for procedure definitions */
271: for (l = defined; l != NULL; l = l->next) {
272: def = (definition *) l->val;
273: if (def->def_kind == DEF_PROGRAM) {
274: write_real_program(def);
275: }
276: }
277:
278: /* write out dispatcher for each program */
279: for (l = defined; l != NULL; l = l->next) {
280: def = (definition *) l->val;
281: if (def->def_kind == DEF_PROGRAM) {
282: write_program(def, storage);
283: }
284: }
285:
286:
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. */
293: static
294: write_real_program(def)
295: definition *def;
296: {
297: version_list *vp;
298: proc_list *proc;
299: decl_list *l;
300:
301: if( !newstyle ) return; /* not needed for old style */
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);
308: if( Cflag ) {
309: f_print(fout, "(" );
310: /* arg name */
311: if (proc->arg_num > 1)
312: f_print(fout, proc->args.argname);
313: else
314: ptype(proc->args.decls->decl.prefix,
315: proc->args.decls->decl.type, 0);
316: f_print(fout, " *argp, struct svc_req *%s)\n",
317: RQSTP);
318: } else {
319: f_print(fout, "(argp, %s)\n", RQSTP );
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");
325: ptype(proc->args.decls->decl.prefix,
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 */
337: if (!streq( proc->args.decls->decl.type, "void"))
338: f_print(fout, "*argp, "); /* non-void */
339: } else {
340: for (l = proc->args.decls; l != NULL; l = l->next)
341: f_print(fout, "argp->%s, ", l->decl.name);
342: }
343: f_print(fout, "%s));\n}\n", RQSTP);
344: }
345: }
346: }
347:
348: static
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");
359: if (storage != NULL) {
360: f_print(fout, "%s ", storage);
361: }
362: f_print(fout, "void\n");
363: pvname(def->def_name, vp->vers_num);
364:
365: if (Cflag) {
366: f_print(fout, "(struct svc_req *%s, ", RQSTP);
367: f_print(fout, "register SVCXPRT *%s)\n", TRANSP);
368: } else {
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);
372: }
373:
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 */
380: if (streq(proc->args.decls->decl.type,
381: "void")) {
382: continue;
383: }
384: filled = 1;
385: f_print(fout, "\t\t");
386: ptype(proc->args.decls->decl.prefix,
387: proc->args.decls->decl.type, 0);
388: pvname(proc->proc_name, vp->vers_num);
389: f_print(fout, "_arg;\n");
390:
391: }
392: else {
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: }
400: if (!filled) {
401: f_print(fout, "\t\tint fill;\n");
402: }
403: f_print(fout, "\t} %s;\n", ARG);
404: f_print(fout, "\tchar *%s;\n", RESULT);
405:
406: if (Cflag) {
407: f_print(fout, "\txdrproc_t xdr_%s, xdr_%s;\n", ARG, RESULT);
408: f_print(fout,
409: "\tchar *(*%s)(char *, struct svc_req *);\n",
410: ROUTINE);
411: } else {
412: f_print(fout, "\tbool_t (*xdr_%s)(), (*xdr_%s)();\n", ARG, RESULT);
413: f_print(fout, "\tchar *(*%s)();\n", ROUTINE);
414: }
415:
416: f_print(fout, "\n");
417:
418: if (callerflag)
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,
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);
430: print_return("\t\t");
431: f_print(fout, "\n");
432: }
433: for (proc = vp->procs; proc != NULL; proc = proc->next) {
434: f_print(fout, "\tcase %s:\n", proc->proc_name);
435: if (proc->arg_num < 2) { /* single argument */
436: p_xdrfunc( ARG, proc->args.decls->decl.type);
437: } else {
438: p_xdrfunc( ARG, proc->args.argname);
439: }
440: p_xdrfunc( RESULT, proc->res_type);
441: if( Cflag )
442: f_print(fout,
443: "\t\t%s = (char *(*)(char *, struct svc_req *)) ",
444: ROUTINE);
445: else
446: f_print(fout, "\t\t%s = (char *(*)()) ", ROUTINE);
447:
448: if (newstyle) { /* new style: calls internal routine */
449: f_print(fout,"_");
450: }
451: if (!newstyle )
452: pvname_svc(proc->proc_name, vp->vers_num);
453: else
454: pvname(proc->proc_name, vp->vers_num);
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);
464: printif("getargs", TRANSP, "(caddr_t) &", ARG);
465: printerr("decode", TRANSP);
466: print_return("\t\t");
467: f_print(fout, "\t}\n");
468:
469: if (Cflag)
470: f_print(fout, "\t%s = (*%s)((char *)&%s, %s);\n",
471: RESULT, ROUTINE, ARG, RQSTP);
472: else
473: f_print(fout, "\t%s = (*%s)(&%s, %s);\n",
474: RESULT, ROUTINE, ARG, RQSTP);
475: f_print(fout,
476: "\tif (%s != NULL && !svc_sendreply(%s, xdr_%s, %s)) {\n",
477: RESULT, TRANSP, RESULT, RESULT);
478: printerr("systemerr", TRANSP);
479: f_print(fout, "\t}\n");
480:
481: printif("freeargs", TRANSP, "(caddr_t) &", ARG);
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:
491: static
492: printerr(err, transp)
493: char *err;
494: char *transp;
495: {
496: f_print(fout, "\t\tsvcerr_%s(%s);\n", err, transp);
497: }
498:
499: static
500: printif(proc, transp, prefix, arg)
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",
507: proc, transp, arg, prefix, arg);
508: }
509:
510: nullproc(proc)
511: proc_list *proc;
512: {
513: for (; proc != NULL; proc = proc->next) {
514: if (streq(proc->proc_num, "0")) {
515: return (1);
516: }
517: }
518: return (0);
519: }
520:
521: static
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");
531: f_print(fout,
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");
537: f_print(fout, "\t\t\t\t(char *)&_rpcfdtype, &ssize) == -1)\n");
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:
550: static
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:
563: static
564: print_pmapunset(space)
565: char *space;
566: {
567: list *l;
568: definition *def;
569: version_list *vp;
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;
575: vp = vp->next) {
576: f_print(fout, "%s(void) pmap_unset(%s, %s);\n",
577: space, def->def_name, vp->vers_name);
578: }
579: }
580: }
581: }
582:
583: static
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: /*
596: * Write the server auxiliary function ( _msgout, timeout)
597: */
598: void
599: write_svc_aux( nomain )
600: int nomain;
601: {
602: if (!logflag)
603: write_msg_out();
604: if( !nomain )
605: write_timeout_func();
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");
618: if( !Cflag ) {
619: f_print(fout, "void _msgout(msg)\n");
620: f_print(fout, "\tchar *msg;\n");
621: } else {
622: f_print(fout, "void _msgout(char* msg)\n");
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");
629: f_print(fout, "\telse\n");
630: f_print(fout, "\t\t(void) fprintf(stderr, \"%%s\\n\", msg);\n");
631: f_print(fout, "#else\n");
632: f_print(fout, "\tsyslog(LOG_ERR, msg);\n");
633: f_print(fout, "#endif\n");
634: f_print(fout, "}\n");
635: }
636:
637: /*
638: * Write the timeout function
639: */
640: static
641: write_timeout_func()
642: {
643: if (!timerflag)
644: return;
645: f_print(fout, "\n");
646: f_print(fout, "static void\n");
647: f_print(fout, "closedown()\n");
648: f_print(fout, "{\n");
649: f_print(fout, "\tif (_rpcsvcdirty == 0) {\n");
1.3 ! deraadt 650: f_print(fout, "\t\textern fd_set *__svc_fdset;\n");
! 651: f_print(fout, "\t\textern int __svc_fdsetsize;\n");
1.1 deraadt 652: f_print(fout, "\t\tint i, openfd;\n");
653: if (tirpcflag && pmflag) {
654: f_print(fout, "\t\tstruct t_info tinfo;\n\n");
655: f_print(fout, "\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n");
656: } else {
657: f_print(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n");
658: }
659: f_print(fout, "\t\t\texit(0);\n");
1.3 ! deraadt 660: f_print(fout, "\t\tfor (i = 0, openfd = 0; i < __svc_fdsetsize && openfd < 2; i++)\n");
! 661: f_print(fout, "\t\t\tif (FD_ISSET(i, __svc_fdset))\n");
1.1 deraadt 662: f_print(fout, "\t\t\t\topenfd++;\n");
663: f_print(fout, "\t\tif (openfd <= (_rpcpmstart?0:1))\n");
664: f_print(fout, "\t\t\texit(0);\n");
665: f_print(fout, "\t}\n");
666: f_print(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN);\n");
667: f_print(fout, "}\n");
668: }
669:
670: static
671: write_caller_func() /*EVAS*/
672: {
673: #define P(s) f_print(fout, s);
674:
675: P("\n");
676: P("char *svc_caller()\n");
677: P("{\n");
678: P(" struct sockaddr_in actual;\n");
679: P(" struct hostent *hp;\n");
680: P(" static struct in_addr prev;\n");
681: P(" static char cname[128];\n\n");
682:
683: P(" actual = *svc_getcaller(caller);\n\n");
684:
685: P(" if (memcmp((char *)&actual.sin_addr, (char *)&prev,\n");
686: P(" sizeof(struct in_addr)) == 0)\n");
687: P(" return (cname);\n\n");
688:
689: P(" prev = actual.sin_addr;\n\n");
690:
691: P(" hp = gethostbyaddr((char *) &actual.sin_addr, sizeof(actual.sin_addr), AF_INET);\n");
692: P(" if (hp == NULL) { /* dummy one up */\n");
693: P(" extern char *inet_ntoa();\n");
694: P(" strcpy(cname, inet_ntoa(actual.sin_addr));\n");
695: P(" } else {\n");
696: P(" strcpy(cname, hp->h_name);\n");
697: P(" }\n\n");
698:
699: P(" return (cname);\n");
700: P("}\n");
701:
702: #undef P
703: }
704:
705: /*
706: * Write the most of port monitor support
707: */
708: static
709: write_pm_most(infile, netflag)
710: char *infile;
711: int netflag;
712: {
713: list *l;
714: definition *def;
715: version_list *vp;
716:
717: f_print(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n");
718: f_print(fout, "\t\t(!strcmp(mname, \"sockmod\") ||");
719: f_print(fout, " !strcmp(mname, \"timod\"))) {\n");
720: f_print(fout, "\t\tchar *netid;\n");
721: if (!netflag) { /* Not included by -n option */
722: f_print(fout, "\t\tstruct netconfig *nconf = NULL;\n");
723: f_print(fout, "\t\tSVCXPRT *%s;\n", TRANSP);
724: }
725: if( timerflag )
726: f_print(fout, "\t\tint pmclose;\n");
727: /* not necessary, defined in /usr/include/stdlib */
728: /* f_print(fout, "\t\textern char *getenv();\n");*/
729: f_print(fout, "\n");
730: f_print(fout, "\t\t_rpcpmstart = 1;\n");
731: if (logflag)
732: open_log_file(infile, "\t\t");
733: f_print(fout, "\t\tif ((netid = getenv(\"NLSPROVIDER\")) == NULL) {\n");
734: sprintf(_errbuf, "cannot get transport name");
735: print_err_message("\t\t\t");
736: f_print(fout, "\t\t} else if ((nconf = getnetconfigent(netid)) == NULL) {\n");
737: sprintf(_errbuf, "cannot get transport info");
738: print_err_message("\t\t\t");
739: f_print(fout, "\t\t}\n");
740: /*
741: * A kludgy support for inetd services. Inetd only works with
742: * sockmod, and RPC works only with timod, hence all this jugglery
743: */
744: f_print(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n");
745: f_print(fout, "\t\t\tif (ioctl(0, I_POP, 0) || ioctl(0, I_PUSH, \"timod\")) {\n");
746: sprintf(_errbuf, "could not get the right module");
747: print_err_message("\t\t\t\t");
748: f_print(fout, "\t\t\t\texit(1);\n");
749: f_print(fout, "\t\t\t}\n");
750: f_print(fout, "\t\t}\n");
751: if( timerflag )
752: f_print(fout, "\t\tpmclose = (t_getstate(0) != T_DATAXFER);\n");
753: f_print(fout, "\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) == NULL) {\n",
754: TRANSP);
755: sprintf(_errbuf, "cannot create server handle");
756: print_err_message("\t\t\t");
757: f_print(fout, "\t\t\texit(1);\n");
758: f_print(fout, "\t\t}\n");
759: f_print(fout, "\t\tif (nconf)\n");
760: f_print(fout, "\t\t\tfreenetconfigent(nconf);\n");
761: for (l = defined; l != NULL; l = l->next) {
762: def = (definition *) l->val;
763: if (def->def_kind != DEF_PROGRAM) {
764: continue;
765: }
766: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
767: f_print(fout,
768: "\t\tif (!svc_reg(%s, %s, %s, ",
769: TRANSP, def->def_name, vp->vers_name);
770: pvname(def->def_name, vp->vers_num);
771: f_print(fout, ", 0)) {\n");
772: (void) sprintf(_errbuf, "unable to register (%s, %s).",
773: def->def_name, vp->vers_name);
774: print_err_message("\t\t\t");
775: f_print(fout, "\t\t\texit(1);\n");
776: f_print(fout, "\t\t}\n");
777: }
778: }
779: if (timerflag) {
780: f_print(fout, "\t\tif (pmclose) {\n");
781: f_print(fout, "\t\t\t(void) signal(SIGALRM, %s closedown);\n",
782: Cflag? "(SIG_PF)" : "(void(*)())" );
783: f_print(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n");
784: f_print(fout, "\t\t}\n");
785: }
786: f_print(fout, "\t\tsvc_run();\n");
787: f_print(fout, "\t\texit(1);\n");
788: f_print(fout, "\t\t/* NOTREACHED */\n");
789: f_print(fout, "\t}\n");
790: }
791:
792: /*
793: * Support for backgrounding the server if self started.
794: */
795: static
796: write_rpc_svc_fg(infile, sp)
797: char *infile;
798: char *sp;
799: {
800: f_print(fout, "#ifndef RPC_SVC_FG\n");
801: f_print(fout, "%sint size;\n", sp);
802: if( tirpcflag )
803: f_print(fout, "%sstruct rlimit rl;\n", sp);
804: if (inetdflag)
805: f_print(fout, "%sint pid, i;\n\n", sp);
806: f_print(fout, "%spid = fork();\n", sp);
807: f_print(fout, "%sif (pid < 0) {\n", sp);
808: f_print(fout, "%s\tperror(\"cannot fork\");\n", sp);
809: f_print(fout, "%s\texit(1);\n", sp);
810: f_print(fout, "%s}\n", sp);
811: f_print(fout, "%sif (pid)\n", sp);
812: f_print(fout, "%s\texit(0);\n", sp);
813: /* get number of file descriptors */
814: if( tirpcflag ) {
815: f_print(fout, "%srl.rlim_max = 0;\n", sp);
816: f_print(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp);
817: f_print(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp);
818: f_print(fout, "%s\texit(1);\n", sp);
819: } else {
820: f_print(fout, "%ssize = getdtablesize();\n", sp);
821: }
822:
823: f_print(fout, "%sfor (i = 0; i < size; i++)\n", sp);
824: f_print(fout, "%s\t(void) close(i);\n", sp);
825: /* Redirect stderr and stdout to console */
826: f_print(fout, "%si = open(\"/dev/console\", 2);\n", sp);
827: f_print(fout, "%s(void) dup2(i, 1);\n", sp);
828: f_print(fout, "%s(void) dup2(i, 2);\n", sp);
829: /* This removes control of the controlling terminal */
830: if( tirpcflag )
831: f_print(fout, "%ssetsid();\n", sp);
832: else {
833: f_print(fout, "%si = open(\"/dev/tty\", 2);\n", sp);
834: f_print(fout, "%sif (i >= 0) {\n", sp);
835: f_print(fout, "%s\t(void) ioctl(i, TIOCNOTTY, (char *)NULL);\n", sp);;
836: f_print(fout, "%s\t(void) close(i);\n", sp);
837: f_print(fout, "%s}\n", sp);
838: }
839: if (!logflag)
840: open_log_file(infile, sp);
841: f_print(fout, "#endif\n");
842: if (logflag)
843: open_log_file(infile, sp);
844: }
845:
846: static
847: open_log_file(infile, sp)
848: char *infile;
849: char *sp;
850: {
851: char *s;
852:
853: s = strrchr(infile, '.');
854: if (s)
855: *s = '\0';
856: f_print(fout,"%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, infile);
857: if (s)
858: *s = '.';
859: }
860:
861:
862:
863:
864: /*
865: * write a registration for the given transport for Inetd
866: */
867: void
868: write_inetd_register(transp)
869: char *transp;
870: {
871: list *l;
872: definition *def;
873: version_list *vp;
874: char *sp;
875: int isudp;
876: char tmpbuf[32];
877:
878: if (inetdflag)
879: sp = "\t";
880: else
881: sp = "";
882: if (streq(transp, "udp"))
883: isudp = 1;
884: else
885: isudp = 0;
886: f_print(fout, "\n");
887: if (inetdflag) {
888: f_print(fout, "\tif ((_rpcfdtype == 0) || (_rpcfdtype == %s)) {\n",
889: isudp ? "SOCK_DGRAM" : "SOCK_STREAM");
890: }
891: if (inetdflag && streq(transp, "tcp")) {
892: f_print(fout, "%s\tif (_rpcpmstart)\n", sp);
893:
894: f_print(fout, "%s\t\t%s = svc%s_create(%s",
895: sp, TRANSP, "fd", inetdflag? "sock": "RPC_ANYSOCK");
896: if (!isudp)
897: f_print(fout, ", 0, 0");
898: f_print(fout, ");\n");
899:
900: f_print(fout, "%s\telse\n", sp);
901:
902: f_print(fout, "%s\t\t%s = svc%s_create(%s",
903: sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK");
904: if (!isudp)
905: f_print(fout, ", 0, 0");
906: f_print(fout, ");\n");
907:
908: } else {
909: f_print(fout, "%s\t%s = svc%s_create(%s",
910: sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK");
911: if (!isudp)
912: f_print(fout, ", 0, 0");
913: f_print(fout, ");\n");
914: }
915: f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP);
916: (void) sprintf(_errbuf, "cannot create %s service.", transp);
917: (void) sprintf(tmpbuf, "%s\t\t", sp);
918: print_err_message(tmpbuf);
919: f_print(fout, "%s\t\texit(1);\n", sp);
920: f_print(fout, "%s\t}\n", sp);
921:
922: if (inetdflag) {
923: f_print(fout, "%s\tif (!_rpcpmstart)\n\t", sp);
924: f_print(fout, "%s\tproto = IPPROTO_%s;\n",
925: sp, isudp ? "UDP": "TCP");
926: }
927: for (l = defined; l != NULL; l = l->next) {
928: def = (definition *) l->val;
929: if (def->def_kind != DEF_PROGRAM) {
930: continue;
931: }
932: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
933: f_print(fout, "%s\tif (!svc_register(%s, %s, %s, ",
934: sp, TRANSP, def->def_name, vp->vers_name);
935: pvname(def->def_name, vp->vers_num);
936: if (inetdflag)
937: f_print(fout, ", proto)) {\n");
938: else
939: f_print(fout, ", IPPROTO_%s)) {\n",
940: isudp ? "UDP": "TCP");
941: (void) sprintf(_errbuf, "unable to register (%s, %s, %s).",
942: def->def_name, vp->vers_name, transp);
943: print_err_message(tmpbuf);
944: f_print(fout, "%s\t\texit(1);\n", sp);
945: f_print(fout, "%s\t}\n", sp);
946: }
947: }
948: if (inetdflag)
949: f_print(fout, "\t}\n");
950: }
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