Annotation of src/usr.bin/rpcgen/rpc_svcout.c, Revision 1.15
1.15 ! deraadt 1: /* $OpenBSD: rpc_svcout.c,v 1.14 2002/06/12 06:07:16 mpech 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:
1.11 millert 54: void internal_proctype(proc_list *);
1.15 ! deraadt 55: static void write_real_program(definition *);
! 56: static void write_program(definition *, char *);
! 57: static void printerr(char *, char *);
! 58: static void printif(char *, char *, char *, char *);
! 59: static void write_inetmost(char *);
! 60: static void print_return(char *);
! 61: static void print_pmapunset(char *);
! 62: static void print_err_message(char *);
! 63: static void write_timeout_func(void);
! 64: static void write_pm_most(char *, int);
! 65: static void write_caller_func(void);
! 66: static void write_rpc_svc_fg(char *, char *);
! 67: static void write_msg_out();
! 68: static void open_log_file(char *, char *);
! 69: int nullproc(proc_list *proc);
1.1 deraadt 70:
1.15 ! deraadt 71: static void
1.10 deraadt 72: p_xdrfunc(rname, typename)
73: char *rname;
74: char *typename;
75: {
76: if (Cflag)
1.12 deraadt 77: fprintf(fout, "\t\txdr_%s = (xdrproc_t) xdr_%s;\n",
1.10 deraadt 78: rname, stringfix(typename));
79: else
1.12 deraadt 80: fprintf(fout, "\t\txdr_%s = xdr_%s;\n", rname,
1.10 deraadt 81: stringfix(typename));
82: }
1.1 deraadt 83:
1.5 deraadt 84: void
1.1 deraadt 85: internal_proctype(plist)
86: proc_list *plist;
87: {
1.12 deraadt 88: fprintf(fout, "static ");
1.10 deraadt 89: ptype(plist->res_prefix, plist->res_type, 1);
1.12 deraadt 90: fprintf(fout, "*");
1.1 deraadt 91: }
92:
93: /*
1.10 deraadt 94: * write most of the service, that is, everything but the registrations.
1.1 deraadt 95: */
96: void
97: write_most(infile, netflag, nomain)
98: char *infile; /* our name */
99: int netflag;
1.10 deraadt 100: int nomain;
1.1 deraadt 101: {
102: if (inetdflag || pmflag) {
1.15 ! deraadt 103: char *var_type;
1.1 deraadt 104: var_type = (nomain? "extern" : "static");
1.12 deraadt 105: fprintf(fout, "%s int _rpcpmstart;", var_type);
106: fprintf(fout, "\t\t/* Started by a port monitor ? */\n");
107: fprintf(fout, "%s int _rpcfdtype;", var_type);
108: fprintf(fout, "\t\t/* Whether Stream or Datagram ? */\n");
1.1 deraadt 109: if (timerflag) {
1.12 deraadt 110: fprintf(fout, "%s int _rpcsvcdirty;", var_type);
111: fprintf(fout, "\t/* Still serving ? */\n");
1.1 deraadt 112: }
1.10 deraadt 113: write_svc_aux(nomain);
1.1 deraadt 114: }
115: /* write out dispatcher and stubs */
1.10 deraadt 116: write_programs(nomain? (char *)NULL : "static");
1.1 deraadt 117:
1.15 ! deraadt 118: if (nomain)
1.10 deraadt 119: return;
1.1 deraadt 120:
1.12 deraadt 121: fprintf(fout, "\nmain()\n");
122: fprintf(fout, "{\n");
1.1 deraadt 123: if (inetdflag) {
124: write_inetmost(infile); /* Includes call to write_rpc_svc_fg() */
125: } else {
1.15 ! deraadt 126: if (tirpcflag) {
! 127: if (netflag) {
! 128: fprintf(fout, "\tSVCXPRT *%s;\n", TRANSP);
! 129: fprintf(fout, "\tstruct netconfig *nconf = NULL;\n");
! 130: }
! 131: fprintf(fout, "\tpid_t pid;\n");
! 132: fprintf(fout, "\tint i;\n");
! 133: fprintf(fout, "\tchar mname[FMNAMESZ + 1];\n\n");
! 134: write_pm_most(infile, netflag);
! 135: fprintf(fout, "\telse {\n");
! 136: write_rpc_svc_fg(infile, "\t\t");
! 137: fprintf(fout, "\t}\n");
! 138: } else {
1.12 deraadt 139: fprintf(fout, "\tSVCXPRT *%s;\n", TRANSP);
1.15 ! deraadt 140: fprintf(fout, "\n");
! 141: print_pmapunset("\t");
1.1 deraadt 142: }
143: }
144:
145: if (logflag && !inetdflag) {
146: open_log_file(infile, "\t");
147: }
148: }
149:
150: /*
1.10 deraadt 151: * write a registration for the given transport
1.1 deraadt 152: */
153: void
154: write_netid_register(transp)
155: char *transp;
156: {
157: list *l;
158: definition *def;
159: version_list *vp;
160: char *sp;
161: char tmpbuf[32];
162:
163: sp = "";
1.12 deraadt 164: fprintf(fout, "\n");
165: fprintf(fout, "%s\tnconf = getnetconfigent(\"%s\");\n", sp, transp);
166: fprintf(fout, "%s\tif (nconf == NULL) {\n", sp);
167: (void) snprintf(_errbuf, sizeof _errbuf, "cannot find %s netid.", transp);
1.10 deraadt 168: snprintf(tmpbuf, sizeof tmpbuf, "%s\t\t", sp);
1.1 deraadt 169: print_err_message(tmpbuf);
1.12 deraadt 170: fprintf(fout, "%s\t\texit(1);\n", sp);
171: fprintf(fout, "%s\t}\n", sp);
172: fprintf(fout, "%s\t%s = svc_tli_create(RPC_ANYFD, nconf, 0, 0, 0);\n",
1.10 deraadt 173: sp, TRANSP);
1.12 deraadt 174: fprintf(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP);
175: (void) snprintf(_errbuf, sizeof _errbuf, "cannot create %s service.", transp);
1.1 deraadt 176: print_err_message(tmpbuf);
1.12 deraadt 177: fprintf(fout, "%s\t\texit(1);\n", sp);
178: fprintf(fout, "%s\t}\n", sp);
1.1 deraadt 179:
180: for (l = defined; l != NULL; l = l->next) {
181: def = (definition *) l->val;
1.10 deraadt 182: if (def->def_kind != DEF_PROGRAM)
1.1 deraadt 183: continue;
184: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
1.12 deraadt 185: fprintf(fout,
1.10 deraadt 186: "%s\t(void) rpcb_unset(%s, %s, nconf);\n",
187: sp, def->def_name, vp->vers_name);
1.12 deraadt 188: fprintf(fout,
1.10 deraadt 189: "%s\tif (!svc_reg(%s, %s, %s, ",
190: sp, TRANSP, def->def_name, vp->vers_name);
1.1 deraadt 191: pvname(def->def_name, vp->vers_num);
1.12 deraadt 192: fprintf(fout, ", nconf)) {\n");
193: (void) snprintf(_errbuf, sizeof _errbuf,
194: "unable to register (%s, %s, %s).",
1.10 deraadt 195: def->def_name, vp->vers_name, transp);
1.1 deraadt 196: print_err_message(tmpbuf);
1.12 deraadt 197: fprintf(fout, "%s\t\texit(1);\n", sp);
198: fprintf(fout, "%s\t}\n", sp);
1.1 deraadt 199: }
200: }
1.12 deraadt 201: fprintf(fout, "%s\tfreenetconfigent(nconf);\n", sp);
1.1 deraadt 202: }
203:
204: /*
205: * write a registration for the given transport for TLI
206: */
207: void
208: write_nettype_register(transp)
209: char *transp;
210: {
211: list *l;
212: definition *def;
213: version_list *vp;
214:
215: for (l = defined; l != NULL; l = l->next) {
216: def = (definition *) l->val;
1.10 deraadt 217: if (def->def_kind != DEF_PROGRAM)
1.1 deraadt 218: continue;
219: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
1.12 deraadt 220: fprintf(fout, "\tif (!svc_create(");
1.1 deraadt 221: pvname(def->def_name, vp->vers_num);
1.12 deraadt 222: fprintf(fout, ", %s, %s, \"%s\")) {\n",
1.10 deraadt 223: def->def_name, vp->vers_name, transp);
1.12 deraadt 224: (void) snprintf(_errbuf, sizeof _errbuf,
1.10 deraadt 225: "unable to create (%s, %s) for %s.",
226: def->def_name, vp->vers_name, transp);
1.1 deraadt 227: print_err_message("\t\t");
1.12 deraadt 228: fprintf(fout, "\t\texit(1);\n");
229: fprintf(fout, "\t}\n");
1.1 deraadt 230: }
231: }
232: }
233:
234: /*
1.10 deraadt 235: * write the rest of the service
1.1 deraadt 236: */
237: void
238: write_rest()
239: {
1.12 deraadt 240: fprintf(fout, "\n");
1.1 deraadt 241: if (inetdflag) {
1.12 deraadt 242: fprintf(fout, "\tif (%s == (SVCXPRT *)NULL) {\n", TRANSP);
243: (void) snprintf(_errbuf, sizeof _errbuf, "could not create a handle");
1.1 deraadt 244: print_err_message("\t\t");
1.12 deraadt 245: fprintf(fout, "\t\texit(1);\n");
246: fprintf(fout, "\t}\n");
1.1 deraadt 247: if (timerflag) {
1.12 deraadt 248: fprintf(fout, "\tif (_rpcpmstart) {\n");
249: fprintf(fout,
1.10 deraadt 250: "\t\t(void) signal(SIGALRM, %s closedown);\n",
251: Cflag? "(SIG_PF)" : "(void(*)())");
1.12 deraadt 252: fprintf(fout, "\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n");
253: fprintf(fout, "\t}\n");
1.1 deraadt 254: }
255: }
1.12 deraadt 256: fprintf(fout, "\tsvc_run();\n");
257: (void) snprintf(_errbuf, sizeof _errbuf, "svc_run returned");
1.1 deraadt 258: print_err_message("\t");
1.12 deraadt 259: fprintf(fout, "\texit(1);\n");
260: fprintf(fout, "\t/* NOTREACHED */\n");
261: fprintf(fout, "}\n");
1.1 deraadt 262: }
263:
264: void
265: write_programs(storage)
266: char *storage;
267: {
1.10 deraadt 268: definition *def;
1.9 deraadt 269: list *l;
1.1 deraadt 270:
271: /* write out stubs for procedure definitions */
272: for (l = defined; l != NULL; l = l->next) {
273: def = (definition *) l->val;
1.10 deraadt 274: if (def->def_kind == DEF_PROGRAM)
1.1 deraadt 275: write_real_program(def);
276: }
277:
278: /* write out dispatcher for each program */
279: for (l = defined; l != NULL; l = l->next) {
280: def = (definition *) l->val;
1.10 deraadt 281: if (def->def_kind == DEF_PROGRAM)
1.1 deraadt 282: write_program(def, storage);
283: }
284: }
285:
286: /* write out definition of internal function (e.g. _printmsg_1(...))
287: which calls server's defintion of actual function (e.g. printmsg_1(...)).
288: Unpacks single user argument of printmsg_1 to call-by-value format
289: expected by printmsg_1. */
1.15 ! deraadt 290: static void
1.1 deraadt 291: write_real_program(def)
292: definition *def;
293: {
294: version_list *vp;
295: proc_list *proc;
296: decl_list *l;
297:
1.10 deraadt 298: if (!newstyle) return; /* not needed for old style */
1.1 deraadt 299: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
300: for (proc = vp->procs; proc != NULL; proc = proc->next) {
1.12 deraadt 301: fprintf(fout, "\n");
1.1 deraadt 302: internal_proctype(proc);
1.12 deraadt 303: fprintf(fout, "\n_");
1.1 deraadt 304: pvname(proc->proc_name, vp->vers_num);
1.10 deraadt 305: if (Cflag) {
1.15 ! deraadt 306: fprintf(fout, "(");
! 307: /* arg name */
! 308: if (proc->arg_num > 1)
! 309: fprintf(fout, proc->args.argname);
! 310: else
! 311: ptype(proc->args.decls->decl.prefix,
! 312: proc->args.decls->decl.type, 0);
! 313: fprintf(fout, " *argp, struct svc_req *%s)\n",
! 314: RQSTP);
1.1 deraadt 315: } else {
1.15 ! deraadt 316: fprintf(fout, "(argp, %s)\n", RQSTP);
! 317: /* arg name */
! 318: if (proc->arg_num > 1)
! 319: fprintf(fout, "\t%s *argp;\n",
! 320: proc->args.argname);
! 321: else {
! 322: fprintf(fout, "\t");
! 323: ptype(proc->args.decls->decl.prefix,
! 324: proc->args.decls->decl.type, 0);
! 325: fprintf(fout, " *argp;\n");
! 326: }
! 327: fprintf(fout, " struct svc_req *%s;\n", RQSTP);
1.1 deraadt 328: }
329:
1.12 deraadt 330: fprintf(fout, "{\n");
331: fprintf(fout, "\treturn(");
1.1 deraadt 332: pvname_svc(proc->proc_name, vp->vers_num);
1.12 deraadt 333: fprintf(fout, "(");
1.1 deraadt 334: if (proc->arg_num < 2) { /* single argument */
1.15 ! deraadt 335: if (!streq(proc->args.decls->decl.type, "void"))
! 336: fprintf(fout, "*argp, "); /* non-void */
1.1 deraadt 337: } else {
1.15 ! deraadt 338: for (l = proc->args.decls; l != NULL; l = l->next)
! 339: fprintf(fout, "argp->%s, ", l->decl.name);
1.1 deraadt 340: }
1.12 deraadt 341: fprintf(fout, "%s));\n}\n", RQSTP);
1.10 deraadt 342: }
1.1 deraadt 343: }
344: }
345:
1.15 ! deraadt 346: static void
1.1 deraadt 347: write_program(def, storage)
348: definition *def;
349: char *storage;
350: {
351: version_list *vp;
352: proc_list *proc;
353: int filled;
354:
355: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
1.12 deraadt 356: fprintf(fout, "\n");
1.10 deraadt 357: if (storage != NULL)
1.12 deraadt 358: fprintf(fout, "%s ", storage);
359: fprintf(fout, "void\n");
1.1 deraadt 360: pvname(def->def_name, vp->vers_num);
361:
362: if (Cflag) {
1.12 deraadt 363: fprintf(fout, "(struct svc_req *%s, ", RQSTP);
364: fprintf(fout, "register SVCXPRT *%s)\n", TRANSP);
1.1 deraadt 365: } else {
1.12 deraadt 366: fprintf(fout, "(%s, %s)\n", RQSTP, TRANSP);
367: fprintf(fout, " struct svc_req *%s;\n", RQSTP);
368: fprintf(fout, " register SVCXPRT *%s;\n", TRANSP);
1.1 deraadt 369: }
1.12 deraadt 370: fprintf(fout, "{\n");
1.1 deraadt 371:
372: filled = 0;
1.12 deraadt 373: fprintf(fout, "\tunion {\n");
1.1 deraadt 374: for (proc = vp->procs; proc != NULL; proc = proc->next) {
375: if (proc->arg_num < 2) { /* single argument */
1.10 deraadt 376: if (streq(proc->args.decls->decl.type,
377: "void"))
1.1 deraadt 378: continue;
379: filled = 1;
1.12 deraadt 380: fprintf(fout, "\t\t");
1.10 deraadt 381: ptype(proc->args.decls->decl.prefix,
382: proc->args.decls->decl.type, 0);
1.1 deraadt 383: pvname(proc->proc_name, vp->vers_num);
1.12 deraadt 384: fprintf(fout, "_arg;\n");
1.1 deraadt 385:
1.10 deraadt 386: } else {
1.1 deraadt 387: filled = 1;
1.12 deraadt 388: fprintf(fout, "\t\t%s", proc->args.argname);
389: fprintf(fout, " ");
1.1 deraadt 390: pvname(proc->proc_name, vp->vers_num);
1.12 deraadt 391: fprintf(fout, "_arg;\n");
1.1 deraadt 392: }
393: }
1.10 deraadt 394: if (!filled)
1.12 deraadt 395: fprintf(fout, "\t\tint fill;\n");
396: fprintf(fout, "\t} %s;\n", ARG);
397: fprintf(fout, "\tchar *%s;\n", RESULT);
1.1 deraadt 398:
399: if (Cflag) {
1.12 deraadt 400: fprintf(fout, "\txdrproc_t xdr_%s, xdr_%s;\n", ARG, RESULT);
401: fprintf(fout,
1.1 deraadt 402: "\tchar *(*%s)(char *, struct svc_req *);\n",
403: ROUTINE);
404: } else {
1.12 deraadt 405: fprintf(fout, "\tbool_t (*xdr_%s)(), (*xdr_%s)();\n",
1.10 deraadt 406: ARG, RESULT);
1.12 deraadt 407: fprintf(fout, "\tchar *(*%s)();\n", ROUTINE);
1.1 deraadt 408: }
1.12 deraadt 409: fprintf(fout, "\n");
1.1 deraadt 410:
1.10 deraadt 411: if (callerflag)
1.12 deraadt 412: fprintf(fout, "\tcaller = transp;\n"); /*EVAS*/
1.1 deraadt 413: if (timerflag)
1.12 deraadt 414: fprintf(fout, "\t_rpcsvcdirty = 1;\n");
415: fprintf(fout, "\tswitch (%s->rq_proc) {\n", RQSTP);
1.1 deraadt 416: if (!nullproc(vp->procs)) {
1.12 deraadt 417: fprintf(fout, "\tcase NULLPROC:\n");
418: fprintf(fout,
1.10 deraadt 419: Cflag
420: ? "\t\t(void) svc_sendreply(%s, (xdrproc_t) xdr_void, (char *)NULL);\n"
421: : "\t\t(void) svc_sendreply(%s, xdr_void, (char *)NULL);\n",
422: TRANSP);
1.1 deraadt 423: print_return("\t\t");
1.12 deraadt 424: fprintf(fout, "\n");
1.1 deraadt 425: }
426: for (proc = vp->procs; proc != NULL; proc = proc->next) {
1.12 deraadt 427: fprintf(fout, "\tcase %s:\n", proc->proc_name);
1.1 deraadt 428: if (proc->arg_num < 2) { /* single argument */
1.10 deraadt 429: p_xdrfunc(ARG, proc->args.decls->decl.type);
1.1 deraadt 430: } else {
1.10 deraadt 431: p_xdrfunc(ARG, proc->args.argname);
1.1 deraadt 432: }
1.10 deraadt 433: p_xdrfunc(RESULT, proc->res_type);
434: if (Cflag)
1.12 deraadt 435: fprintf(fout,
1.1 deraadt 436: "\t\t%s = (char *(*)(char *, struct svc_req *)) ",
437: ROUTINE);
438: else
1.12 deraadt 439: fprintf(fout, "\t\t%s = (char *(*)()) ", ROUTINE);
1.1 deraadt 440:
441: if (newstyle) { /* new style: calls internal routine */
1.12 deraadt 442: fprintf(fout,"_");
1.1 deraadt 443: }
1.10 deraadt 444: if (!newstyle)
445: pvname_svc(proc->proc_name, vp->vers_num);
1.1 deraadt 446: else
1.10 deraadt 447: pvname(proc->proc_name, vp->vers_num);
1.12 deraadt 448: fprintf(fout, ";\n");
449: fprintf(fout, "\t\tbreak;\n\n");
1.1 deraadt 450: }
1.12 deraadt 451: fprintf(fout, "\tdefault:\n");
1.1 deraadt 452: printerr("noproc", TRANSP);
453: print_return("\t\t");
1.12 deraadt 454: fprintf(fout, "\t}\n");
1.1 deraadt 455:
1.12 deraadt 456: fprintf(fout, "\t(void) memset((char *)&%s, 0, sizeof (%s));\n", ARG, ARG);
1.10 deraadt 457: printif ("getargs", TRANSP, "(caddr_t) &", ARG);
1.1 deraadt 458: printerr("decode", TRANSP);
459: print_return("\t\t");
1.12 deraadt 460: fprintf(fout, "\t}\n");
1.1 deraadt 461:
462: if (Cflag)
1.12 deraadt 463: fprintf(fout, "\t%s = (*%s)((char *)&%s, %s);\n",
1.1 deraadt 464: RESULT, ROUTINE, ARG, RQSTP);
465: else
1.12 deraadt 466: fprintf(fout, "\t%s = (*%s)(&%s, %s);\n",
1.1 deraadt 467: RESULT, ROUTINE, ARG, RQSTP);
1.12 deraadt 468: fprintf(fout,
1.10 deraadt 469: "\tif (%s != NULL && !svc_sendreply(%s, xdr_%s, %s)) {\n",
470: RESULT, TRANSP, RESULT, RESULT);
1.1 deraadt 471: printerr("systemerr", TRANSP);
1.12 deraadt 472: fprintf(fout, "\t}\n");
1.1 deraadt 473:
1.10 deraadt 474: printif ("freeargs", TRANSP, "(caddr_t) &", ARG);
1.12 deraadt 475: (void) snprintf(_errbuf, sizeof _errbuf, "unable to free arguments");
1.1 deraadt 476: print_err_message("\t\t");
1.12 deraadt 477: fprintf(fout, "\t\texit(1);\n");
478: fprintf(fout, "\t}\n");
1.1 deraadt 479: print_return("\t");
1.12 deraadt 480: fprintf(fout, "}\n");
1.1 deraadt 481: }
482: }
483:
1.15 ! deraadt 484: static void
1.1 deraadt 485: printerr(err, transp)
486: char *err;
487: char *transp;
488: {
1.12 deraadt 489: fprintf(fout, "\t\tsvcerr_%s(%s);\n", err, transp);
1.1 deraadt 490: }
491:
1.15 ! deraadt 492: static void
! 493: printif(proc, transp, prefix, arg)
1.1 deraadt 494: char *proc;
495: char *transp;
496: char *prefix;
497: char *arg;
498: {
1.12 deraadt 499: fprintf(fout, "\tif (!svc_%s(%s, xdr_%s, %s%s)) {\n",
1.10 deraadt 500: proc, transp, arg, prefix, arg);
1.1 deraadt 501: }
502:
1.15 ! deraadt 503: int
1.1 deraadt 504: nullproc(proc)
505: proc_list *proc;
506: {
507: for (; proc != NULL; proc = proc->next) {
1.10 deraadt 508: if (streq(proc->proc_num, "0"))
1.1 deraadt 509: return (1);
510: }
511: return (0);
512: }
513:
1.15 ! deraadt 514: static void
1.1 deraadt 515: write_inetmost(infile)
516: char *infile;
517: {
1.12 deraadt 518: fprintf(fout, "\tregister SVCXPRT *%s;\n", TRANSP);
519: fprintf(fout, "\tint sock;\n");
520: fprintf(fout, "\tint proto;\n");
521: fprintf(fout, "\tstruct sockaddr_in saddr;\n");
522: fprintf(fout, "\tint asize = sizeof (saddr);\n");
523: fprintf(fout, "\n");
524: fprintf(fout,
1.1 deraadt 525: "\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n");
1.12 deraadt 526: fprintf(fout, "\t\tint ssize = sizeof (int);\n\n");
527: fprintf(fout, "\t\tif (saddr.sin_family != AF_INET)\n");
528: fprintf(fout, "\t\t\texit(1);\n");
529: fprintf(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n");
530: fprintf(fout, "\t\t (char *)&_rpcfdtype, &ssize) == -1)\n");
531: fprintf(fout, "\t\t\texit(1);\n");
532: fprintf(fout, "\t\tsock = 0;\n");
533: fprintf(fout, "\t\t_rpcpmstart = 1;\n");
534: fprintf(fout, "\t\tproto = 0;\n");
1.1 deraadt 535: open_log_file(infile, "\t\t");
1.12 deraadt 536: fprintf(fout, "\t} else {\n");
1.1 deraadt 537: write_rpc_svc_fg(infile, "\t\t");
1.12 deraadt 538: fprintf(fout, "\t\tsock = RPC_ANYSOCK;\n");
1.1 deraadt 539: print_pmapunset("\t\t");
1.12 deraadt 540: fprintf(fout, "\t}\n");
1.1 deraadt 541: }
542:
1.15 ! deraadt 543: static void
1.1 deraadt 544: print_return(space)
545: char *space;
546: {
547: if (exitnow)
1.12 deraadt 548: fprintf(fout, "%sexit(0);\n", space);
1.1 deraadt 549: else {
550: if (timerflag)
1.12 deraadt 551: fprintf(fout, "%s_rpcsvcdirty = 0;\n", space);
552: fprintf(fout, "%sreturn;\n", space);
1.1 deraadt 553: }
554: }
555:
1.15 ! deraadt 556: static void
1.1 deraadt 557: print_pmapunset(space)
558: char *space;
559: {
1.10 deraadt 560: version_list *vp;
561: definition *def;
1.9 deraadt 562: list *l;
1.1 deraadt 563:
564: for (l = defined; l != NULL; l = l->next) {
565: def = (definition *) l->val;
566: if (def->def_kind == DEF_PROGRAM) {
567: for (vp = def->def.pr.versions; vp != NULL;
1.10 deraadt 568: vp = vp->next) {
1.12 deraadt 569: fprintf(fout, "%s(void) pmap_unset(%s, %s);\n",
1.10 deraadt 570: space, def->def_name, vp->vers_name);
1.1 deraadt 571: }
572: }
573: }
574: }
575:
1.15 ! deraadt 576: static void
1.1 deraadt 577: print_err_message(space)
578: char *space;
579: {
580: if (logflag)
1.13 deraadt 581: fprintf(fout, "%ssyslog(LOG_ERR, \"%%s\", \"%s\");\n", space, _errbuf);
1.1 deraadt 582: else if (inetdflag || pmflag)
1.12 deraadt 583: fprintf(fout, "%s_msgout(\"%s\");\n", space, _errbuf);
1.1 deraadt 584: else
1.12 deraadt 585: fprintf(fout, "%sfprintf(stderr, \"%s\");\n", space, _errbuf);
1.1 deraadt 586: }
587:
588: /*
1.10 deraadt 589: * Write the server auxiliary function (_msgout, timeout)
1.1 deraadt 590: */
591: void
1.10 deraadt 592: write_svc_aux(nomain)
1.15 ! deraadt 593: int nomain;
1.1 deraadt 594: {
595: if (!logflag)
596: write_msg_out();
1.10 deraadt 597: if (!nomain)
598: write_timeout_func();
1.1 deraadt 599: if (callerflag) /*EVAS*/
600: write_caller_func(); /*EVAS*/
601: }
602:
603: /*
604: * Write the _msgout function
605: */
606:
1.15 ! deraadt 607: void
1.1 deraadt 608: write_msg_out()
609: {
1.12 deraadt 610: fprintf(fout, "\n");
611: fprintf(fout, "static\n");
1.10 deraadt 612: if (!Cflag) {
1.12 deraadt 613: fprintf(fout, "void _msgout(msg)\n");
614: fprintf(fout, "\tchar *msg;\n");
1.1 deraadt 615: } else {
1.12 deraadt 616: fprintf(fout, "void _msgout(char *msg)\n");
1.1 deraadt 617: }
1.12 deraadt 618: fprintf(fout, "{\n");
619: fprintf(fout, "#ifdef RPC_SVC_FG\n");
1.1 deraadt 620: if (inetdflag || pmflag)
1.12 deraadt 621: fprintf(fout, "\tif (_rpcpmstart)\n");
1.13 deraadt 622: fprintf(fout, "\t\tsyslog(LOG_ERR, \"%%s\", msg);\n");
1.12 deraadt 623: fprintf(fout, "\telse {\n");
624: fprintf(fout, "\t\t(void) write(STDERR_FILENO, msg, strlen(msg));\n");
625: fprintf(fout, "\t\t(void) write(STDERR_FILENO, \"\\n\", 1);\n");
626: fprintf(fout, "\t}\n#else\n");
1.13 deraadt 627: fprintf(fout, "\tsyslog(LOG_ERR, \"%%s\", msg);\n");
1.12 deraadt 628: fprintf(fout, "#endif\n");
629: fprintf(fout, "}\n");
1.1 deraadt 630: }
631:
632: /*
633: * Write the timeout function
634: */
1.15 ! deraadt 635: static void
1.1 deraadt 636: write_timeout_func()
637: {
638: if (!timerflag)
639: return;
1.12 deraadt 640: fprintf(fout, "\n");
641: fprintf(fout, "static void\n");
642: fprintf(fout, "closedown()\n");
643: fprintf(fout, "{\n");
644: fprintf(fout, "\tint save_errno = errno;\n\n");
645: fprintf(fout, "\tif (_rpcsvcdirty == 0) {\n");
646: fprintf(fout, "\t\textern fd_set *__svc_fdset;\n");
647: fprintf(fout, "\t\textern int __svc_fdsetsize;\n");
648: fprintf(fout, "\t\tint i, openfd;\n");
1.1 deraadt 649: if (tirpcflag && pmflag) {
1.12 deraadt 650: fprintf(fout, "\t\tstruct t_info tinfo;\n\n");
651: fprintf(fout, "\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n");
1.1 deraadt 652: } else {
1.12 deraadt 653: fprintf(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n");
1.1 deraadt 654: }
1.12 deraadt 655: fprintf(fout, "\t\t\t_exit(0);\n");
656: fprintf(fout, "\t\tfor (i = 0, openfd = 0; i < __svc_fdsetsize && openfd < 2; i++)\n");
657: fprintf(fout, "\t\t\tif (FD_ISSET(i, __svc_fdset))\n");
658: fprintf(fout, "\t\t\t\topenfd++;\n");
659: fprintf(fout, "\t\tif (openfd <= (_rpcpmstart?0:1))\n");
660: fprintf(fout, "\t\t\t_exit(0);\n");
661: fprintf(fout, "\t}\n");
662: fprintf(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN);\n");
663: fprintf(fout, "\terrno = save_errno;\n");
664: fprintf(fout, "}\n");
1.1 deraadt 665: }
666:
1.15 ! deraadt 667: static void
1.1 deraadt 668: write_caller_func() /*EVAS*/
669: {
1.12 deraadt 670: #define P(s) fprintf(fout, s);
1.1 deraadt 671:
672: P("\n");
673: P("char *svc_caller()\n");
674: P("{\n");
675: P(" struct sockaddr_in actual;\n");
676: P(" struct hostent *hp;\n");
677: P(" static struct in_addr prev;\n");
1.12 deraadt 678: P(" static char cname[256];\n\n");
1.1 deraadt 679:
680: P(" actual = *svc_getcaller(caller);\n\n");
681:
682: P(" if (memcmp((char *)&actual.sin_addr, (char *)&prev,\n");
683: P(" sizeof(struct in_addr)) == 0)\n");
684: P(" return (cname);\n\n");
685:
686: P(" prev = actual.sin_addr;\n\n");
687:
688: P(" hp = gethostbyaddr((char *) &actual.sin_addr, sizeof(actual.sin_addr), AF_INET);\n");
689: P(" if (hp == NULL) { /* dummy one up */\n");
690: P(" extern char *inet_ntoa();\n");
1.12 deraadt 691: P(" strlcpy(cname, inet_ntoa(actual.sin_addr), sizeof cname);\n");
1.1 deraadt 692: P(" } else {\n");
1.12 deraadt 693: P(" strlcpy(cname, hp->h_name, sizeof cname);\n");
1.1 deraadt 694: P(" }\n\n");
695:
696: P(" return (cname);\n");
697: P("}\n");
698:
699: #undef P
700: }
701:
702: /*
703: * Write the most of port monitor support
704: */
1.15 ! deraadt 705: static void
1.1 deraadt 706: write_pm_most(infile, netflag)
707: char *infile;
708: int netflag;
709: {
710: list *l;
711: definition *def;
712: version_list *vp;
713:
1.12 deraadt 714: fprintf(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n");
715: fprintf(fout, "\t\t(!strcmp(mname, \"sockmod\") ||");
716: fprintf(fout, " !strcmp(mname, \"timod\"))) {\n");
717: fprintf(fout, "\t\tchar *netid;\n");
1.1 deraadt 718: if (!netflag) { /* Not included by -n option */
1.12 deraadt 719: fprintf(fout, "\t\tstruct netconfig *nconf = NULL;\n");
720: fprintf(fout, "\t\tSVCXPRT *%s;\n", TRANSP);
1.1 deraadt 721: }
1.10 deraadt 722: if (timerflag)
1.15 ! deraadt 723: fprintf(fout, "\t\tint pmclose;\n");
1.1 deraadt 724: /* not necessary, defined in /usr/include/stdlib */
1.12 deraadt 725: /* fprintf(fout, "\t\textern char *getenv();\n");*/
726: fprintf(fout, "\n");
727: fprintf(fout, "\t\t_rpcpmstart = 1;\n");
1.1 deraadt 728: if (logflag)
729: open_log_file(infile, "\t\t");
1.12 deraadt 730: fprintf(fout, "\t\tif ((netid = getenv(\"NLSPROVIDER\")) == NULL) {\n");
731: snprintf(_errbuf, sizeof _errbuf, "cannot get transport name");
1.1 deraadt 732: print_err_message("\t\t\t");
1.12 deraadt 733: fprintf(fout, "\t\t} else if ((nconf = getnetconfigent(netid)) == NULL) {\n");
734: snprintf(_errbuf, sizeof _errbuf, "cannot get transport info");
1.1 deraadt 735: print_err_message("\t\t\t");
1.12 deraadt 736: fprintf(fout, "\t\t}\n");
1.1 deraadt 737: /*
738: * A kludgy support for inetd services. Inetd only works with
739: * sockmod, and RPC works only with timod, hence all this jugglery
740: */
1.12 deraadt 741: fprintf(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n");
742: fprintf(fout, "\t\t\tif (ioctl(0, I_POP, 0) || ioctl(0, I_PUSH, \"timod\")) {\n");
743: snprintf(_errbuf, sizeof _errbuf, "could not get the right module");
1.1 deraadt 744: print_err_message("\t\t\t\t");
1.12 deraadt 745: fprintf(fout, "\t\t\t\texit(1);\n");
746: fprintf(fout, "\t\t\t}\n");
747: fprintf(fout, "\t\t}\n");
1.10 deraadt 748: if (timerflag)
1.15 ! deraadt 749: fprintf(fout, "\t\tpmclose = (t_getstate(0) != T_DATAXFER);\n");
1.12 deraadt 750: fprintf(fout, "\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) == NULL) {\n",
1.1 deraadt 751: TRANSP);
1.12 deraadt 752: snprintf(_errbuf, sizeof _errbuf, "cannot create server handle");
1.1 deraadt 753: print_err_message("\t\t\t");
1.12 deraadt 754: fprintf(fout, "\t\t\texit(1);\n");
755: fprintf(fout, "\t\t}\n");
756: fprintf(fout, "\t\tif (nconf)\n");
757: fprintf(fout, "\t\t\tfreenetconfigent(nconf);\n");
1.1 deraadt 758: for (l = defined; l != NULL; l = l->next) {
759: def = (definition *) l->val;
760: if (def->def_kind != DEF_PROGRAM) {
761: continue;
762: }
763: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
1.12 deraadt 764: fprintf(fout,
1.1 deraadt 765: "\t\tif (!svc_reg(%s, %s, %s, ",
766: TRANSP, def->def_name, vp->vers_name);
767: pvname(def->def_name, vp->vers_num);
1.12 deraadt 768: fprintf(fout, ", 0)) {\n");
769: (void) snprintf(_errbuf, sizeof _errbuf, "unable to register (%s, %s).",
1.1 deraadt 770: def->def_name, vp->vers_name);
771: print_err_message("\t\t\t");
1.12 deraadt 772: fprintf(fout, "\t\t\texit(1);\n");
773: fprintf(fout, "\t\t}\n");
1.1 deraadt 774: }
775: }
776: if (timerflag) {
1.12 deraadt 777: fprintf(fout, "\t\tif (pmclose) {\n");
778: fprintf(fout, "\t\t\t(void) signal(SIGALRM, %s closedown);\n",
1.10 deraadt 779: Cflag? "(SIG_PF)" : "(void(*)())");
1.12 deraadt 780: fprintf(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n");
781: fprintf(fout, "\t\t}\n");
1.1 deraadt 782: }
1.12 deraadt 783: fprintf(fout, "\t\tsvc_run();\n");
784: fprintf(fout, "\t\texit(1);\n");
785: fprintf(fout, "\t\t/* NOTREACHED */\n");
786: fprintf(fout, "\t}\n");
1.1 deraadt 787: }
788:
789: /*
790: * Support for backgrounding the server if self started.
791: */
1.15 ! deraadt 792: static void
1.1 deraadt 793: write_rpc_svc_fg(infile, sp)
794: char *infile;
795: char *sp;
796: {
1.12 deraadt 797: fprintf(fout, "#ifndef RPC_SVC_FG\n");
798: fprintf(fout, "%sint size;\n", sp);
1.10 deraadt 799: if (tirpcflag)
1.15 ! deraadt 800: fprintf(fout, "%sstruct rlimit rl;\n", sp);
1.14 mpech 801: if (inetdflag) {
802: fprintf(fout, "%sint i;\n\n", sp);
803: fprintf(fout, "%spid_t pid;\n\n", sp);
804: }
1.12 deraadt 805: fprintf(fout, "%spid = fork();\n", sp);
806: fprintf(fout, "%sif (pid < 0) {\n", sp);
807: fprintf(fout, "%s\tperror(\"cannot fork\");\n", sp);
808: fprintf(fout, "%s\texit(1);\n", sp);
809: fprintf(fout, "%s}\n", sp);
810: fprintf(fout, "%sif (pid)\n", sp);
811: fprintf(fout, "%s\texit(0);\n", sp);
1.1 deraadt 812: /* get number of file descriptors */
1.10 deraadt 813: if (tirpcflag) {
1.15 ! deraadt 814: fprintf(fout, "%srl.rlim_max = 0;\n", sp);
! 815: fprintf(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp);
! 816: fprintf(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp);
! 817: fprintf(fout, "%s\texit(1);\n", sp);
1.1 deraadt 818: } else {
1.15 ! deraadt 819: fprintf(fout, "%ssize = getdtablesize();\n", sp);
1.1 deraadt 820: }
821:
1.12 deraadt 822: fprintf(fout, "%sfor (i = 0; i < size; i++)\n", sp);
823: fprintf(fout, "%s\t(void) close(i);\n", sp);
1.1 deraadt 824: /* Redirect stderr and stdout to console */
1.12 deraadt 825: fprintf(fout, "%si = open(\"/dev/console\", 2);\n", sp);
826: fprintf(fout, "%s(void) dup2(i, 1);\n", sp);
827: fprintf(fout, "%s(void) dup2(i, 2);\n", sp);
1.1 deraadt 828: /* This removes control of the controlling terminal */
1.10 deraadt 829: if (tirpcflag)
1.15 ! deraadt 830: fprintf(fout, "%ssetsid();\n", sp);
1.1 deraadt 831: else {
1.15 ! deraadt 832: fprintf(fout, "%si = open(\"/dev/tty\", 2);\n", sp);
! 833: fprintf(fout, "%sif (i >= 0) {\n", sp);
! 834: fprintf(fout, "%s\t(void) ioctl(i, TIOCNOTTY, (char *)NULL);\n", sp);;
! 835: fprintf(fout, "%s\t(void) close(i);\n", sp);
! 836: fprintf(fout, "%s}\n", sp);
1.1 deraadt 837: }
838: if (!logflag)
839: open_log_file(infile, sp);
1.12 deraadt 840: fprintf(fout, "#endif\n");
1.1 deraadt 841: if (logflag)
842: open_log_file(infile, sp);
843: }
844:
1.15 ! deraadt 845: static void
1.1 deraadt 846: open_log_file(infile, sp)
847: char *infile;
848: char *sp;
849: {
850: char *s;
851:
852: s = strrchr(infile, '.');
1.10 deraadt 853: if (s)
1.1 deraadt 854: *s = '\0';
1.12 deraadt 855: fprintf(fout,"%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, infile);
1.1 deraadt 856: if (s)
857: *s = '.';
858: }
859:
860: /*
861: * write a registration for the given transport for Inetd
862: */
863: void
864: write_inetd_register(transp)
865: char *transp;
866: {
867: list *l;
868: definition *def;
869: version_list *vp;
870: char *sp;
871: int isudp;
872: char tmpbuf[32];
873:
874: if (inetdflag)
875: sp = "\t";
876: else
877: sp = "";
878: if (streq(transp, "udp"))
879: isudp = 1;
880: else
881: isudp = 0;
1.12 deraadt 882: fprintf(fout, "\n");
1.1 deraadt 883: if (inetdflag) {
1.12 deraadt 884: fprintf(fout, "\tif (_rpcfdtype == 0 || _rpcfdtype == %s) {\n",
1.1 deraadt 885: isudp ? "SOCK_DGRAM" : "SOCK_STREAM");
886: }
887: if (inetdflag && streq(transp, "tcp")) {
1.12 deraadt 888: fprintf(fout, "%s\tif (_rpcpmstart)\n", sp);
1.1 deraadt 889:
1.12 deraadt 890: fprintf(fout, "%s\t\t%s = svc%s_create(%s",
1.1 deraadt 891: sp, TRANSP, "fd", inetdflag? "sock": "RPC_ANYSOCK");
892: if (!isudp)
1.12 deraadt 893: fprintf(fout, ", 0, 0");
894: fprintf(fout, ");\n");
1.1 deraadt 895:
1.12 deraadt 896: fprintf(fout, "%s\telse\n", sp);
1.1 deraadt 897:
1.12 deraadt 898: fprintf(fout, "%s\t\t%s = svc%s_create(%s",
1.1 deraadt 899: sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK");
900: if (!isudp)
1.12 deraadt 901: fprintf(fout, ", 0, 0");
902: fprintf(fout, ");\n");
1.1 deraadt 903:
904: } else {
1.12 deraadt 905: fprintf(fout, "%s\t%s = svc%s_create(%s",
1.1 deraadt 906: sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK");
907: if (!isudp)
1.12 deraadt 908: fprintf(fout, ", 0, 0");
909: fprintf(fout, ");\n");
1.1 deraadt 910: }
1.12 deraadt 911: fprintf(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP);
912: (void) snprintf(_errbuf, sizeof _errbuf, "cannot create %s service.", transp);
913: (void) snprintf(tmpbuf, sizeof tmpbuf, "%s\t\t", sp);
1.1 deraadt 914: print_err_message(tmpbuf);
1.12 deraadt 915: fprintf(fout, "%s\t\texit(1);\n", sp);
916: fprintf(fout, "%s\t}\n", sp);
1.1 deraadt 917:
918: if (inetdflag) {
1.12 deraadt 919: fprintf(fout, "%s\tif (!_rpcpmstart)\n\t", sp);
920: fprintf(fout, "%s\tproto = IPPROTO_%s;\n",
1.1 deraadt 921: sp, isudp ? "UDP": "TCP");
922: }
923: for (l = defined; l != NULL; l = l->next) {
924: def = (definition *) l->val;
925: if (def->def_kind != DEF_PROGRAM) {
926: continue;
927: }
928: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
1.12 deraadt 929: fprintf(fout, "%s\tif (!svc_register(%s, %s, %s, ",
1.1 deraadt 930: sp, TRANSP, def->def_name, vp->vers_name);
931: pvname(def->def_name, vp->vers_num);
932: if (inetdflag)
1.12 deraadt 933: fprintf(fout, ", proto)) {\n");
1.10 deraadt 934: else
1.12 deraadt 935: fprintf(fout, ", IPPROTO_%s)) {\n",
1.1 deraadt 936: isudp ? "UDP": "TCP");
1.12 deraadt 937: (void) snprintf(_errbuf, sizeof _errbuf, "unable to register (%s, %s, %s).",
1.1 deraadt 938: def->def_name, vp->vers_name, transp);
939: print_err_message(tmpbuf);
1.12 deraadt 940: fprintf(fout, "%s\t\texit(1);\n", sp);
941: fprintf(fout, "%s\t}\n", sp);
1.1 deraadt 942: }
943: }
944: if (inetdflag)
1.12 deraadt 945: fprintf(fout, "\t}\n");
1.1 deraadt 946: }
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