Annotation of src/usr.bin/rpcgen/rpc_svcout.c, Revision 1.10
1.10 ! deraadt 1: /* $OpenBSD: rpc_svcout.c,v 1.8 2001/11/24 19:17:47 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:
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
1.10 ! 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",
! 76: rname, stringfix(typename));
! 77: else
! 78: f_print(fout, "\t\txdr_%s = xdr_%s;\n", rname,
! 79: stringfix(typename));
! 80: }
1.1 deraadt 81:
1.5 deraadt 82: void
1.1 deraadt 83: internal_proctype(plist)
84: proc_list *plist;
85: {
86: f_print(fout, "static ");
1.10 ! deraadt 87: ptype(plist->res_prefix, plist->res_type, 1);
! 88: f_print(fout, "*");
1.1 deraadt 89: }
90:
91: /*
1.10 ! 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;
1.10 ! deraadt 98: int nomain;
1.1 deraadt 99: {
100: if (inetdflag || pmflag) {
1.10 ! deraadt 101: char *var_type;
1.1 deraadt 102: var_type = (nomain? "extern" : "static");
1.10 ! 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) {
1.10 ! deraadt 108: f_print(fout, "%s int _rpcsvcdirty;", var_type);
1.1 deraadt 109: f_print(fout, "\t/* Still serving ? */\n");
110: }
1.10 ! deraadt 111: write_svc_aux(nomain);
1.1 deraadt 112: }
113: /* write out dispatcher and stubs */
1.10 ! deraadt 114: write_programs(nomain? (char *)NULL : "static");
1.1 deraadt 115:
1.10 ! 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 {
1.10 ! 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: /*
1.10 ! 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);
1.10 ! deraadt 166: snprintf(tmpbuf, sizeof 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",
1.10 ! 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;
1.10 ! deraadt 180: if (def->def_kind != DEF_PROGRAM)
1.1 deraadt 181: continue;
182: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
183: f_print(fout,
1.10 ! deraadt 184: "%s\t(void) rpcb_unset(%s, %s, nconf);\n",
! 185: sp, def->def_name, vp->vers_name);
1.1 deraadt 186: f_print(fout,
1.10 ! deraadt 187: "%s\tif (!svc_reg(%s, %s, %s, ",
! 188: sp, TRANSP, def->def_name, vp->vers_name);
1.1 deraadt 189: pvname(def->def_name, vp->vers_num);
190: f_print(fout, ", nconf)) {\n");
191: (void) sprintf(_errbuf, "unable to register (%s, %s, %s).",
1.10 ! deraadt 192: def->def_name, vp->vers_name, transp);
1.1 deraadt 193: print_err_message(tmpbuf);
194: f_print(fout, "%s\t\texit(1);\n", sp);
195: f_print(fout, "%s\t}\n", sp);
196: }
197: }
198: f_print(fout, "%s\tfreenetconfigent(nconf);\n", sp);
199: }
200:
201: /*
202: * write a registration for the given transport for TLI
203: */
204: void
205: write_nettype_register(transp)
206: char *transp;
207: {
208: list *l;
209: definition *def;
210: version_list *vp;
211:
212: for (l = defined; l != NULL; l = l->next) {
213: def = (definition *) l->val;
1.10 ! deraadt 214: if (def->def_kind != DEF_PROGRAM)
1.1 deraadt 215: continue;
216: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
217: f_print(fout, "\tif (!svc_create(");
218: pvname(def->def_name, vp->vers_num);
1.6 deraadt 219: f_print(fout, ", %s, %s, \"%s\")) {\n",
1.10 ! deraadt 220: def->def_name, vp->vers_name, transp);
1.1 deraadt 221: (void) sprintf(_errbuf,
1.10 ! deraadt 222: "unable to create (%s, %s) for %s.",
! 223: def->def_name, vp->vers_name, transp);
1.1 deraadt 224: print_err_message("\t\t");
225: f_print(fout, "\t\texit(1);\n");
226: f_print(fout, "\t}\n");
227: }
228: }
229: }
230:
231: /*
1.10 ! deraadt 232: * write the rest of the service
1.1 deraadt 233: */
234: void
235: write_rest()
236: {
237: f_print(fout, "\n");
238: if (inetdflag) {
239: f_print(fout, "\tif (%s == (SVCXPRT *)NULL) {\n", TRANSP);
240: (void) sprintf(_errbuf, "could not create a handle");
241: print_err_message("\t\t");
242: f_print(fout, "\t\texit(1);\n");
243: f_print(fout, "\t}\n");
244: if (timerflag) {
245: f_print(fout, "\tif (_rpcpmstart) {\n");
1.10 ! deraadt 246: f_print(fout,
! 247: "\t\t(void) signal(SIGALRM, %s closedown);\n",
! 248: Cflag? "(SIG_PF)" : "(void(*)())");
1.1 deraadt 249: f_print(fout, "\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n");
250: f_print(fout, "\t}\n");
251: }
252: }
253: f_print(fout, "\tsvc_run();\n");
254: (void) sprintf(_errbuf, "svc_run returned");
255: print_err_message("\t");
256: f_print(fout, "\texit(1);\n");
257: f_print(fout, "\t/* NOTREACHED */\n");
258: f_print(fout, "}\n");
259: }
260:
261: void
262: write_programs(storage)
263: char *storage;
264: {
1.10 ! deraadt 265: definition *def;
1.9 deraadt 266: list *l;
1.1 deraadt 267:
268: /* write out stubs for procedure definitions */
269: for (l = defined; l != NULL; l = l->next) {
270: def = (definition *) l->val;
1.10 ! deraadt 271: if (def->def_kind == DEF_PROGRAM)
1.1 deraadt 272: write_real_program(def);
273: }
274:
275: /* write out dispatcher for each program */
276: for (l = defined; l != NULL; l = l->next) {
277: def = (definition *) l->val;
1.10 ! deraadt 278: if (def->def_kind == DEF_PROGRAM)
1.1 deraadt 279: write_program(def, storage);
280: }
281: }
282:
283: /* write out definition of internal function (e.g. _printmsg_1(...))
284: which calls server's defintion of actual function (e.g. printmsg_1(...)).
285: Unpacks single user argument of printmsg_1 to call-by-value format
286: expected by printmsg_1. */
1.5 deraadt 287: static
1.1 deraadt 288: write_real_program(def)
289: definition *def;
290: {
291: version_list *vp;
292: proc_list *proc;
293: decl_list *l;
294:
1.10 ! deraadt 295: if (!newstyle) return; /* not needed for old style */
1.1 deraadt 296: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
297: for (proc = vp->procs; proc != NULL; proc = proc->next) {
298: f_print(fout, "\n");
299: internal_proctype(proc);
300: f_print(fout, "\n_");
301: pvname(proc->proc_name, vp->vers_num);
1.10 ! deraadt 302: if (Cflag) {
! 303: f_print(fout, "(");
1.1 deraadt 304: /* arg name */
305: if (proc->arg_num > 1)
306: f_print(fout, proc->args.argname);
307: else
1.10 ! deraadt 308: ptype(proc->args.decls->decl.prefix,
1.1 deraadt 309: proc->args.decls->decl.type, 0);
1.10 ! deraadt 310: f_print(fout, " *argp, struct svc_req *%s)\n",
1.1 deraadt 311: RQSTP);
312: } else {
1.10 ! deraadt 313: f_print(fout, "(argp, %s)\n", RQSTP);
1.1 deraadt 314: /* arg name */
315: if (proc->arg_num > 1)
316: f_print(fout, "\t%s *argp;\n", proc->args.argname);
317: else {
318: f_print(fout, "\t");
1.10 ! deraadt 319: ptype(proc->args.decls->decl.prefix,
1.1 deraadt 320: proc->args.decls->decl.type, 0);
321: f_print(fout, " *argp;\n");
322: }
323: f_print(fout, " struct svc_req *%s;\n", RQSTP);
324: }
325:
326: f_print(fout, "{\n");
327: f_print(fout, "\treturn(");
328: pvname_svc(proc->proc_name, vp->vers_num);
329: f_print(fout, "(");
330: if (proc->arg_num < 2) { /* single argument */
1.10 ! deraadt 331: if (!streq(proc->args.decls->decl.type, "void"))
1.1 deraadt 332: f_print(fout, "*argp, "); /* non-void */
333: } else {
1.10 ! deraadt 334: for (l = proc->args.decls; l != NULL; l = l->next)
1.1 deraadt 335: f_print(fout, "argp->%s, ", l->decl.name);
336: }
337: f_print(fout, "%s));\n}\n", RQSTP);
1.10 ! deraadt 338: }
1.1 deraadt 339: }
340: }
341:
1.10 ! deraadt 342: static
1.1 deraadt 343: write_program(def, storage)
344: definition *def;
345: char *storage;
346: {
347: version_list *vp;
348: proc_list *proc;
349: int filled;
350:
351: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
352: f_print(fout, "\n");
1.10 ! deraadt 353: if (storage != NULL)
1.1 deraadt 354: f_print(fout, "%s ", storage);
355: f_print(fout, "void\n");
356: pvname(def->def_name, vp->vers_num);
357:
358: if (Cflag) {
1.10 ! deraadt 359: f_print(fout, "(struct svc_req *%s, ", RQSTP);
! 360: f_print(fout, "register SVCXPRT *%s)\n", TRANSP);
1.1 deraadt 361: } else {
1.10 ! deraadt 362: f_print(fout, "(%s, %s)\n", RQSTP, TRANSP);
! 363: f_print(fout, " struct svc_req *%s;\n", RQSTP);
! 364: f_print(fout, " register SVCXPRT *%s;\n", TRANSP);
1.1 deraadt 365: }
366: f_print(fout, "{\n");
367:
368: filled = 0;
369: f_print(fout, "\tunion {\n");
370: for (proc = vp->procs; proc != NULL; proc = proc->next) {
371: if (proc->arg_num < 2) { /* single argument */
1.10 ! deraadt 372: if (streq(proc->args.decls->decl.type,
! 373: "void"))
1.1 deraadt 374: continue;
375: filled = 1;
376: f_print(fout, "\t\t");
1.10 ! deraadt 377: ptype(proc->args.decls->decl.prefix,
! 378: proc->args.decls->decl.type, 0);
1.1 deraadt 379: pvname(proc->proc_name, vp->vers_num);
380: f_print(fout, "_arg;\n");
381:
1.10 ! deraadt 382: } else {
1.1 deraadt 383: filled = 1;
384: f_print(fout, "\t\t%s", proc->args.argname);
385: f_print(fout, " ");
386: pvname(proc->proc_name, vp->vers_num);
387: f_print(fout, "_arg;\n");
388: }
389: }
1.10 ! deraadt 390: if (!filled)
1.1 deraadt 391: f_print(fout, "\t\tint fill;\n");
392: f_print(fout, "\t} %s;\n", ARG);
393: f_print(fout, "\tchar *%s;\n", RESULT);
394:
395: if (Cflag) {
1.10 ! deraadt 396: f_print(fout, "\txdrproc_t xdr_%s, xdr_%s;\n", ARG, RESULT);
! 397: f_print(fout,
1.1 deraadt 398: "\tchar *(*%s)(char *, struct svc_req *);\n",
399: ROUTINE);
400: } else {
1.10 ! deraadt 401: f_print(fout, "\tbool_t (*xdr_%s)(), (*xdr_%s)();\n",
! 402: ARG, RESULT);
! 403: f_print(fout, "\tchar *(*%s)();\n", ROUTINE);
1.1 deraadt 404: }
405: f_print(fout, "\n");
406:
1.10 ! deraadt 407: if (callerflag)
1.1 deraadt 408: f_print(fout, "\tcaller = transp;\n"); /*EVAS*/
409: if (timerflag)
410: f_print(fout, "\t_rpcsvcdirty = 1;\n");
411: f_print(fout, "\tswitch (%s->rq_proc) {\n", RQSTP);
412: if (!nullproc(vp->procs)) {
413: f_print(fout, "\tcase NULLPROC:\n");
414: f_print(fout,
1.10 ! deraadt 415: Cflag
! 416: ? "\t\t(void) svc_sendreply(%s, (xdrproc_t) xdr_void, (char *)NULL);\n"
! 417: : "\t\t(void) svc_sendreply(%s, xdr_void, (char *)NULL);\n",
! 418: TRANSP);
1.1 deraadt 419: print_return("\t\t");
420: f_print(fout, "\n");
421: }
422: for (proc = vp->procs; proc != NULL; proc = proc->next) {
423: f_print(fout, "\tcase %s:\n", proc->proc_name);
424: if (proc->arg_num < 2) { /* single argument */
1.10 ! deraadt 425: p_xdrfunc(ARG, proc->args.decls->decl.type);
1.1 deraadt 426: } else {
1.10 ! deraadt 427: p_xdrfunc(ARG, proc->args.argname);
1.1 deraadt 428: }
1.10 ! deraadt 429: p_xdrfunc(RESULT, proc->res_type);
! 430: if (Cflag)
! 431: f_print(fout,
1.1 deraadt 432: "\t\t%s = (char *(*)(char *, struct svc_req *)) ",
433: ROUTINE);
434: else
1.10 ! deraadt 435: f_print(fout, "\t\t%s = (char *(*)()) ", ROUTINE);
1.1 deraadt 436:
437: if (newstyle) { /* new style: calls internal routine */
438: f_print(fout,"_");
439: }
1.10 ! deraadt 440: if (!newstyle)
! 441: pvname_svc(proc->proc_name, vp->vers_num);
1.1 deraadt 442: else
1.10 ! deraadt 443: pvname(proc->proc_name, vp->vers_num);
1.1 deraadt 444: f_print(fout, ";\n");
445: f_print(fout, "\t\tbreak;\n\n");
446: }
447: f_print(fout, "\tdefault:\n");
448: printerr("noproc", TRANSP);
449: print_return("\t\t");
450: f_print(fout, "\t}\n");
451:
452: f_print(fout, "\t(void) memset((char *)&%s, 0, sizeof (%s));\n", ARG, ARG);
1.10 ! deraadt 453: printif ("getargs", TRANSP, "(caddr_t) &", ARG);
1.1 deraadt 454: printerr("decode", TRANSP);
455: print_return("\t\t");
456: f_print(fout, "\t}\n");
457:
458: if (Cflag)
1.10 ! deraadt 459: f_print(fout, "\t%s = (*%s)((char *)&%s, %s);\n",
1.1 deraadt 460: RESULT, ROUTINE, ARG, RQSTP);
461: else
1.10 ! deraadt 462: f_print(fout, "\t%s = (*%s)(&%s, %s);\n",
1.1 deraadt 463: RESULT, ROUTINE, ARG, RQSTP);
1.10 ! deraadt 464: f_print(fout,
! 465: "\tif (%s != NULL && !svc_sendreply(%s, xdr_%s, %s)) {\n",
! 466: RESULT, TRANSP, RESULT, RESULT);
1.1 deraadt 467: printerr("systemerr", TRANSP);
468: f_print(fout, "\t}\n");
469:
1.10 ! deraadt 470: printif ("freeargs", TRANSP, "(caddr_t) &", ARG);
1.1 deraadt 471: (void) sprintf(_errbuf, "unable to free arguments");
472: print_err_message("\t\t");
473: f_print(fout, "\t\texit(1);\n");
474: f_print(fout, "\t}\n");
475: print_return("\t");
476: f_print(fout, "}\n");
477: }
478: }
479:
1.5 deraadt 480: static
1.1 deraadt 481: printerr(err, transp)
482: char *err;
483: char *transp;
484: {
485: f_print(fout, "\t\tsvcerr_%s(%s);\n", err, transp);
486: }
487:
1.5 deraadt 488: static
1.10 ! deraadt 489: printif (proc, transp, prefix, arg)
1.1 deraadt 490: char *proc;
491: char *transp;
492: char *prefix;
493: char *arg;
494: {
495: f_print(fout, "\tif (!svc_%s(%s, xdr_%s, %s%s)) {\n",
1.10 ! deraadt 496: proc, transp, arg, prefix, arg);
1.1 deraadt 497: }
498:
499: nullproc(proc)
500: proc_list *proc;
501: {
502: for (; proc != NULL; proc = proc->next) {
1.10 ! deraadt 503: if (streq(proc->proc_num, "0"))
1.1 deraadt 504: return (1);
505: }
506: return (0);
507: }
508:
1.5 deraadt 509: static
1.1 deraadt 510: write_inetmost(infile)
511: char *infile;
512: {
513: f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP);
514: f_print(fout, "\tint sock;\n");
515: f_print(fout, "\tint proto;\n");
516: f_print(fout, "\tstruct sockaddr_in saddr;\n");
517: f_print(fout, "\tint asize = sizeof (saddr);\n");
518: f_print(fout, "\n");
1.10 ! deraadt 519: f_print(fout,
1.1 deraadt 520: "\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n");
521: f_print(fout, "\t\tint ssize = sizeof (int);\n\n");
522: f_print(fout, "\t\tif (saddr.sin_family != AF_INET)\n");
523: f_print(fout, "\t\t\texit(1);\n");
524: f_print(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n");
1.6 deraadt 525: f_print(fout, "\t\t (char *)&_rpcfdtype, &ssize) == -1)\n");
1.1 deraadt 526: f_print(fout, "\t\t\texit(1);\n");
527: f_print(fout, "\t\tsock = 0;\n");
528: f_print(fout, "\t\t_rpcpmstart = 1;\n");
529: f_print(fout, "\t\tproto = 0;\n");
530: open_log_file(infile, "\t\t");
531: f_print(fout, "\t} else {\n");
532: write_rpc_svc_fg(infile, "\t\t");
533: f_print(fout, "\t\tsock = RPC_ANYSOCK;\n");
534: print_pmapunset("\t\t");
535: f_print(fout, "\t}\n");
536: }
537:
1.5 deraadt 538: static
1.1 deraadt 539: print_return(space)
540: char *space;
541: {
542: if (exitnow)
543: f_print(fout, "%sexit(0);\n", space);
544: else {
545: if (timerflag)
546: f_print(fout, "%s_rpcsvcdirty = 0;\n", space);
547: f_print(fout, "%sreturn;\n", space);
548: }
549: }
550:
1.5 deraadt 551: static
1.1 deraadt 552: print_pmapunset(space)
553: char *space;
554: {
1.10 ! deraadt 555: version_list *vp;
! 556: definition *def;
1.9 deraadt 557: list *l;
1.1 deraadt 558:
559: for (l = defined; l != NULL; l = l->next) {
560: def = (definition *) l->val;
561: if (def->def_kind == DEF_PROGRAM) {
562: for (vp = def->def.pr.versions; vp != NULL;
1.10 ! deraadt 563: vp = vp->next) {
1.1 deraadt 564: f_print(fout, "%s(void) pmap_unset(%s, %s);\n",
1.10 ! deraadt 565: space, def->def_name, vp->vers_name);
1.1 deraadt 566: }
567: }
568: }
569: }
570:
1.5 deraadt 571: static
1.1 deraadt 572: print_err_message(space)
573: char *space;
574: {
575: if (logflag)
576: f_print(fout, "%ssyslog(LOG_ERR, \"%s\");\n", space, _errbuf);
577: else if (inetdflag || pmflag)
578: f_print(fout, "%s_msgout(\"%s\");\n", space, _errbuf);
579: else
580: f_print(fout, "%sfprintf(stderr, \"%s\");\n", space, _errbuf);
581: }
582:
583: /*
1.10 ! deraadt 584: * Write the server auxiliary function (_msgout, timeout)
1.1 deraadt 585: */
586: void
1.10 ! deraadt 587: write_svc_aux(nomain)
1.1 deraadt 588: int nomain;
589: {
590: if (!logflag)
591: write_msg_out();
1.10 ! deraadt 592: if (!nomain)
! 593: write_timeout_func();
1.1 deraadt 594: if (callerflag) /*EVAS*/
595: write_caller_func(); /*EVAS*/
596: }
597:
598: /*
599: * Write the _msgout function
600: */
601:
602: write_msg_out()
603: {
604: f_print(fout, "\n");
605: f_print(fout, "static\n");
1.10 ! deraadt 606: if (!Cflag) {
! 607: f_print(fout, "void _msgout(msg)\n");
! 608: f_print(fout, "\tchar *msg;\n");
1.1 deraadt 609: } else {
1.10 ! deraadt 610: f_print(fout, "void _msgout(char *msg)\n");
1.1 deraadt 611: }
612: f_print(fout, "{\n");
613: f_print(fout, "#ifdef RPC_SVC_FG\n");
614: if (inetdflag || pmflag)
615: f_print(fout, "\tif (_rpcpmstart)\n");
616: f_print(fout, "\t\tsyslog(LOG_ERR, msg);\n");
1.6 deraadt 617: f_print(fout, "\telse {\n");
618: f_print(fout, "\t\t(void) write(STDERR_FILENO, msg, strlen(msg));\n");
619: f_print(fout, "\t\t(void) write(STDERR_FILENO, \"\\n\", 1);\n");
620: f_print(fout, "\t}\n#else\n");
1.1 deraadt 621: f_print(fout, "\tsyslog(LOG_ERR, msg);\n");
622: f_print(fout, "#endif\n");
623: f_print(fout, "}\n");
624: }
625:
626: /*
627: * Write the timeout function
628: */
1.5 deraadt 629: static
1.1 deraadt 630: write_timeout_func()
631: {
632: if (!timerflag)
633: return;
634: f_print(fout, "\n");
635: f_print(fout, "static void\n");
636: f_print(fout, "closedown()\n");
637: f_print(fout, "{\n");
1.6 deraadt 638: f_print(fout, "\tint save_errno = errno;\n\n");
1.1 deraadt 639: f_print(fout, "\tif (_rpcsvcdirty == 0) {\n");
1.3 deraadt 640: f_print(fout, "\t\textern fd_set *__svc_fdset;\n");
641: f_print(fout, "\t\textern int __svc_fdsetsize;\n");
1.1 deraadt 642: f_print(fout, "\t\tint i, openfd;\n");
643: if (tirpcflag && pmflag) {
644: f_print(fout, "\t\tstruct t_info tinfo;\n\n");
645: f_print(fout, "\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n");
646: } else {
647: f_print(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n");
648: }
1.6 deraadt 649: f_print(fout, "\t\t\t_exit(0);\n");
1.3 deraadt 650: f_print(fout, "\t\tfor (i = 0, openfd = 0; i < __svc_fdsetsize && openfd < 2; i++)\n");
651: f_print(fout, "\t\t\tif (FD_ISSET(i, __svc_fdset))\n");
1.1 deraadt 652: f_print(fout, "\t\t\t\topenfd++;\n");
653: f_print(fout, "\t\tif (openfd <= (_rpcpmstart?0:1))\n");
1.6 deraadt 654: f_print(fout, "\t\t\t_exit(0);\n");
1.1 deraadt 655: f_print(fout, "\t}\n");
656: f_print(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN);\n");
1.6 deraadt 657: f_print(fout, "\terrno = save_errno;\n");
1.1 deraadt 658: f_print(fout, "}\n");
659: }
660:
1.5 deraadt 661: static
1.1 deraadt 662: write_caller_func() /*EVAS*/
663: {
664: #define P(s) f_print(fout, s);
665:
666: P("\n");
667: P("char *svc_caller()\n");
668: P("{\n");
669: P(" struct sockaddr_in actual;\n");
670: P(" struct hostent *hp;\n");
671: P(" static struct in_addr prev;\n");
672: P(" static char cname[128];\n\n");
673:
674: P(" actual = *svc_getcaller(caller);\n\n");
675:
676: P(" if (memcmp((char *)&actual.sin_addr, (char *)&prev,\n");
677: P(" sizeof(struct in_addr)) == 0)\n");
678: P(" return (cname);\n\n");
679:
680: P(" prev = actual.sin_addr;\n\n");
681:
682: P(" hp = gethostbyaddr((char *) &actual.sin_addr, sizeof(actual.sin_addr), AF_INET);\n");
683: P(" if (hp == NULL) { /* dummy one up */\n");
684: P(" extern char *inet_ntoa();\n");
685: P(" strcpy(cname, inet_ntoa(actual.sin_addr));\n");
686: P(" } else {\n");
687: P(" strcpy(cname, hp->h_name);\n");
688: P(" }\n\n");
689:
690: P(" return (cname);\n");
691: P("}\n");
692:
693: #undef P
694: }
695:
696: /*
697: * Write the most of port monitor support
698: */
1.5 deraadt 699: static
1.1 deraadt 700: write_pm_most(infile, netflag)
701: char *infile;
702: int netflag;
703: {
704: list *l;
705: definition *def;
706: version_list *vp;
707:
708: f_print(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n");
709: f_print(fout, "\t\t(!strcmp(mname, \"sockmod\") ||");
710: f_print(fout, " !strcmp(mname, \"timod\"))) {\n");
711: f_print(fout, "\t\tchar *netid;\n");
712: if (!netflag) { /* Not included by -n option */
713: f_print(fout, "\t\tstruct netconfig *nconf = NULL;\n");
714: f_print(fout, "\t\tSVCXPRT *%s;\n", TRANSP);
715: }
1.10 ! deraadt 716: if (timerflag)
1.1 deraadt 717: f_print(fout, "\t\tint pmclose;\n");
718: /* not necessary, defined in /usr/include/stdlib */
719: /* f_print(fout, "\t\textern char *getenv();\n");*/
720: f_print(fout, "\n");
721: f_print(fout, "\t\t_rpcpmstart = 1;\n");
722: if (logflag)
723: open_log_file(infile, "\t\t");
724: f_print(fout, "\t\tif ((netid = getenv(\"NLSPROVIDER\")) == NULL) {\n");
725: sprintf(_errbuf, "cannot get transport name");
726: print_err_message("\t\t\t");
727: f_print(fout, "\t\t} else if ((nconf = getnetconfigent(netid)) == NULL) {\n");
728: sprintf(_errbuf, "cannot get transport info");
729: print_err_message("\t\t\t");
730: f_print(fout, "\t\t}\n");
731: /*
732: * A kludgy support for inetd services. Inetd only works with
733: * sockmod, and RPC works only with timod, hence all this jugglery
734: */
735: f_print(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n");
736: f_print(fout, "\t\t\tif (ioctl(0, I_POP, 0) || ioctl(0, I_PUSH, \"timod\")) {\n");
737: sprintf(_errbuf, "could not get the right module");
738: print_err_message("\t\t\t\t");
739: f_print(fout, "\t\t\t\texit(1);\n");
740: f_print(fout, "\t\t\t}\n");
741: f_print(fout, "\t\t}\n");
1.10 ! deraadt 742: if (timerflag)
1.1 deraadt 743: f_print(fout, "\t\tpmclose = (t_getstate(0) != T_DATAXFER);\n");
744: f_print(fout, "\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) == NULL) {\n",
745: TRANSP);
746: sprintf(_errbuf, "cannot create server handle");
747: print_err_message("\t\t\t");
748: f_print(fout, "\t\t\texit(1);\n");
749: f_print(fout, "\t\t}\n");
750: f_print(fout, "\t\tif (nconf)\n");
751: f_print(fout, "\t\t\tfreenetconfigent(nconf);\n");
752: for (l = defined; l != NULL; l = l->next) {
753: def = (definition *) l->val;
754: if (def->def_kind != DEF_PROGRAM) {
755: continue;
756: }
757: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
758: f_print(fout,
759: "\t\tif (!svc_reg(%s, %s, %s, ",
760: TRANSP, def->def_name, vp->vers_name);
761: pvname(def->def_name, vp->vers_num);
762: f_print(fout, ", 0)) {\n");
763: (void) sprintf(_errbuf, "unable to register (%s, %s).",
764: def->def_name, vp->vers_name);
765: print_err_message("\t\t\t");
766: f_print(fout, "\t\t\texit(1);\n");
767: f_print(fout, "\t\t}\n");
768: }
769: }
770: if (timerflag) {
771: f_print(fout, "\t\tif (pmclose) {\n");
772: f_print(fout, "\t\t\t(void) signal(SIGALRM, %s closedown);\n",
1.10 ! deraadt 773: Cflag? "(SIG_PF)" : "(void(*)())");
1.1 deraadt 774: f_print(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n");
775: f_print(fout, "\t\t}\n");
776: }
777: f_print(fout, "\t\tsvc_run();\n");
778: f_print(fout, "\t\texit(1);\n");
779: f_print(fout, "\t\t/* NOTREACHED */\n");
780: f_print(fout, "\t}\n");
781: }
782:
783: /*
784: * Support for backgrounding the server if self started.
785: */
1.5 deraadt 786: static
1.1 deraadt 787: write_rpc_svc_fg(infile, sp)
788: char *infile;
789: char *sp;
790: {
791: f_print(fout, "#ifndef RPC_SVC_FG\n");
792: f_print(fout, "%sint size;\n", sp);
1.10 ! deraadt 793: if (tirpcflag)
1.1 deraadt 794: f_print(fout, "%sstruct rlimit rl;\n", sp);
795: if (inetdflag)
796: f_print(fout, "%sint pid, i;\n\n", sp);
797: f_print(fout, "%spid = fork();\n", sp);
798: f_print(fout, "%sif (pid < 0) {\n", sp);
799: f_print(fout, "%s\tperror(\"cannot fork\");\n", sp);
800: f_print(fout, "%s\texit(1);\n", sp);
801: f_print(fout, "%s}\n", sp);
802: f_print(fout, "%sif (pid)\n", sp);
803: f_print(fout, "%s\texit(0);\n", sp);
804: /* get number of file descriptors */
1.10 ! deraadt 805: if (tirpcflag) {
1.1 deraadt 806: f_print(fout, "%srl.rlim_max = 0;\n", sp);
807: f_print(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp);
808: f_print(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp);
809: f_print(fout, "%s\texit(1);\n", sp);
810: } else {
811: f_print(fout, "%ssize = getdtablesize();\n", sp);
812: }
813:
814: f_print(fout, "%sfor (i = 0; i < size; i++)\n", sp);
815: f_print(fout, "%s\t(void) close(i);\n", sp);
816: /* Redirect stderr and stdout to console */
817: f_print(fout, "%si = open(\"/dev/console\", 2);\n", sp);
818: f_print(fout, "%s(void) dup2(i, 1);\n", sp);
819: f_print(fout, "%s(void) dup2(i, 2);\n", sp);
820: /* This removes control of the controlling terminal */
1.10 ! deraadt 821: if (tirpcflag)
1.1 deraadt 822: f_print(fout, "%ssetsid();\n", sp);
823: else {
824: f_print(fout, "%si = open(\"/dev/tty\", 2);\n", sp);
825: f_print(fout, "%sif (i >= 0) {\n", sp);
826: f_print(fout, "%s\t(void) ioctl(i, TIOCNOTTY, (char *)NULL);\n", sp);;
827: f_print(fout, "%s\t(void) close(i);\n", sp);
828: f_print(fout, "%s}\n", sp);
829: }
830: if (!logflag)
831: open_log_file(infile, sp);
832: f_print(fout, "#endif\n");
833: if (logflag)
834: open_log_file(infile, sp);
835: }
836:
1.5 deraadt 837: static
1.1 deraadt 838: open_log_file(infile, sp)
839: char *infile;
840: char *sp;
841: {
842: char *s;
843:
844: s = strrchr(infile, '.');
1.10 ! deraadt 845: if (s)
1.1 deraadt 846: *s = '\0';
847: f_print(fout,"%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, infile);
848: if (s)
849: *s = '.';
850: }
851:
852: /*
853: * write a registration for the given transport for Inetd
854: */
855: void
856: write_inetd_register(transp)
857: char *transp;
858: {
859: list *l;
860: definition *def;
861: version_list *vp;
862: char *sp;
863: int isudp;
864: char tmpbuf[32];
865:
866: if (inetdflag)
867: sp = "\t";
868: else
869: sp = "";
870: if (streq(transp, "udp"))
871: isudp = 1;
872: else
873: isudp = 0;
874: f_print(fout, "\n");
875: if (inetdflag) {
1.6 deraadt 876: f_print(fout, "\tif (_rpcfdtype == 0 || _rpcfdtype == %s) {\n",
1.1 deraadt 877: isudp ? "SOCK_DGRAM" : "SOCK_STREAM");
878: }
879: if (inetdflag && streq(transp, "tcp")) {
880: f_print(fout, "%s\tif (_rpcpmstart)\n", sp);
881:
882: f_print(fout, "%s\t\t%s = svc%s_create(%s",
883: sp, TRANSP, "fd", inetdflag? "sock": "RPC_ANYSOCK");
884: if (!isudp)
885: f_print(fout, ", 0, 0");
886: f_print(fout, ");\n");
887:
888: f_print(fout, "%s\telse\n", sp);
889:
890: f_print(fout, "%s\t\t%s = svc%s_create(%s",
891: sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK");
892: if (!isudp)
893: f_print(fout, ", 0, 0");
894: f_print(fout, ");\n");
895:
896: } else {
897: f_print(fout, "%s\t%s = svc%s_create(%s",
898: sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK");
899: if (!isudp)
900: f_print(fout, ", 0, 0");
901: f_print(fout, ");\n");
902: }
903: f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP);
904: (void) sprintf(_errbuf, "cannot create %s service.", transp);
905: (void) sprintf(tmpbuf, "%s\t\t", sp);
906: print_err_message(tmpbuf);
907: f_print(fout, "%s\t\texit(1);\n", sp);
908: f_print(fout, "%s\t}\n", sp);
909:
910: if (inetdflag) {
911: f_print(fout, "%s\tif (!_rpcpmstart)\n\t", sp);
912: f_print(fout, "%s\tproto = IPPROTO_%s;\n",
913: sp, isudp ? "UDP": "TCP");
914: }
915: for (l = defined; l != NULL; l = l->next) {
916: def = (definition *) l->val;
917: if (def->def_kind != DEF_PROGRAM) {
918: continue;
919: }
920: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
921: f_print(fout, "%s\tif (!svc_register(%s, %s, %s, ",
922: sp, TRANSP, def->def_name, vp->vers_name);
923: pvname(def->def_name, vp->vers_num);
924: if (inetdflag)
925: f_print(fout, ", proto)) {\n");
1.10 ! deraadt 926: else
1.1 deraadt 927: f_print(fout, ", IPPROTO_%s)) {\n",
928: isudp ? "UDP": "TCP");
929: (void) sprintf(_errbuf, "unable to register (%s, %s, %s).",
930: def->def_name, vp->vers_name, transp);
931: print_err_message(tmpbuf);
932: f_print(fout, "%s\t\texit(1);\n", sp);
933: f_print(fout, "%s\t}\n", sp);
934: }
935: }
936: if (inetdflag)
937: f_print(fout, "\t}\n");
938: }
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