Annotation of src/usr.bin/rpcgen/rpc_svcout.c, Revision 1.19
1.19 ! deraadt 1: /* $OpenBSD: rpc_svcout.c,v 1.18 2003/07/06 21:26:00 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:
1.11 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 *);
1.19 ! deraadt 67: static void write_msg_out(void);
1.15 deraadt 68: static void open_log_file(char *, char *);
69: int nullproc(proc_list *proc);
1.1 deraadt 70:
1.15 deraadt 71: static void
1.19 ! deraadt 72: p_xdrfunc(char *rname, char *typename)
1.10 deraadt 73: {
74: if (Cflag)
1.12 deraadt 75: fprintf(fout, "\t\txdr_%s = (xdrproc_t) xdr_%s;\n",
1.10 deraadt 76: rname, stringfix(typename));
77: else
1.12 deraadt 78: fprintf(fout, "\t\txdr_%s = xdr_%s;\n", rname,
1.10 deraadt 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: {
1.12 deraadt 86: fprintf(fout, "static ");
1.10 deraadt 87: ptype(plist->res_prefix, plist->res_type, 1);
1.12 deraadt 88: fprintf(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) {
1.15 deraadt 101: char *var_type;
1.1 deraadt 102: var_type = (nomain? "extern" : "static");
1.12 deraadt 103: fprintf(fout, "%s int _rpcpmstart;", var_type);
104: fprintf(fout, "\t\t/* Started by a port monitor ? */\n");
105: fprintf(fout, "%s int _rpcfdtype;", var_type);
106: fprintf(fout, "\t\t/* Whether Stream or Datagram ? */\n");
1.1 deraadt 107: if (timerflag) {
1.12 deraadt 108: fprintf(fout, "%s int _rpcsvcdirty;", var_type);
109: fprintf(fout, "\t/* Still serving ? */\n");
1.1 deraadt 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:
1.15 deraadt 116: if (nomain)
1.10 deraadt 117: return;
1.1 deraadt 118:
1.12 deraadt 119: fprintf(fout, "\nmain()\n");
120: fprintf(fout, "{\n");
1.1 deraadt 121: if (inetdflag) {
122: write_inetmost(infile); /* Includes call to write_rpc_svc_fg() */
123: } else {
1.15 deraadt 124: if (tirpcflag) {
125: if (netflag) {
126: fprintf(fout, "\tSVCXPRT *%s;\n", TRANSP);
127: fprintf(fout, "\tstruct netconfig *nconf = NULL;\n");
128: }
129: fprintf(fout, "\tpid_t pid;\n");
130: fprintf(fout, "\tint i;\n");
131: fprintf(fout, "\tchar mname[FMNAMESZ + 1];\n\n");
132: write_pm_most(infile, netflag);
133: fprintf(fout, "\telse {\n");
134: write_rpc_svc_fg(infile, "\t\t");
135: fprintf(fout, "\t}\n");
136: } else {
1.12 deraadt 137: fprintf(fout, "\tSVCXPRT *%s;\n", TRANSP);
1.15 deraadt 138: fprintf(fout, "\n");
139: print_pmapunset("\t");
1.1 deraadt 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 = "";
1.12 deraadt 162: fprintf(fout, "\n");
163: fprintf(fout, "%s\tnconf = getnetconfigent(\"%s\");\n", sp, transp);
164: fprintf(fout, "%s\tif (nconf == NULL) {\n", sp);
165: (void) snprintf(_errbuf, sizeof _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);
1.12 deraadt 168: fprintf(fout, "%s\t\texit(1);\n", sp);
169: fprintf(fout, "%s\t}\n", sp);
170: fprintf(fout, "%s\t%s = svc_tli_create(RPC_ANYFD, nconf, 0, 0, 0);\n",
1.10 deraadt 171: sp, TRANSP);
1.12 deraadt 172: fprintf(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP);
173: (void) snprintf(_errbuf, sizeof _errbuf, "cannot create %s service.", transp);
1.1 deraadt 174: print_err_message(tmpbuf);
1.12 deraadt 175: fprintf(fout, "%s\t\texit(1);\n", sp);
176: fprintf(fout, "%s\t}\n", sp);
1.1 deraadt 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) {
1.12 deraadt 183: fprintf(fout,
1.10 deraadt 184: "%s\t(void) rpcb_unset(%s, %s, nconf);\n",
185: sp, def->def_name, vp->vers_name);
1.12 deraadt 186: fprintf(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);
1.12 deraadt 190: fprintf(fout, ", nconf)) {\n");
191: (void) snprintf(_errbuf, sizeof _errbuf,
192: "unable to register (%s, %s, %s).",
1.10 deraadt 193: def->def_name, vp->vers_name, transp);
1.1 deraadt 194: print_err_message(tmpbuf);
1.12 deraadt 195: fprintf(fout, "%s\t\texit(1);\n", sp);
196: fprintf(fout, "%s\t}\n", sp);
1.1 deraadt 197: }
198: }
1.12 deraadt 199: fprintf(fout, "%s\tfreenetconfigent(nconf);\n", sp);
1.1 deraadt 200: }
201:
202: /*
203: * write a registration for the given transport for TLI
204: */
205: void
206: write_nettype_register(transp)
207: char *transp;
208: {
209: list *l;
210: definition *def;
211: version_list *vp;
212:
213: for (l = defined; l != NULL; l = l->next) {
214: def = (definition *) l->val;
1.10 deraadt 215: if (def->def_kind != DEF_PROGRAM)
1.1 deraadt 216: continue;
217: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
1.12 deraadt 218: fprintf(fout, "\tif (!svc_create(");
1.1 deraadt 219: pvname(def->def_name, vp->vers_num);
1.12 deraadt 220: fprintf(fout, ", %s, %s, \"%s\")) {\n",
1.10 deraadt 221: def->def_name, vp->vers_name, transp);
1.12 deraadt 222: (void) snprintf(_errbuf, sizeof _errbuf,
1.10 deraadt 223: "unable to create (%s, %s) for %s.",
224: def->def_name, vp->vers_name, transp);
1.1 deraadt 225: print_err_message("\t\t");
1.12 deraadt 226: fprintf(fout, "\t\texit(1);\n");
227: fprintf(fout, "\t}\n");
1.1 deraadt 228: }
229: }
230: }
231:
232: /*
1.10 deraadt 233: * write the rest of the service
1.1 deraadt 234: */
235: void
236: write_rest()
237: {
1.12 deraadt 238: fprintf(fout, "\n");
1.1 deraadt 239: if (inetdflag) {
1.12 deraadt 240: fprintf(fout, "\tif (%s == (SVCXPRT *)NULL) {\n", TRANSP);
241: (void) snprintf(_errbuf, sizeof _errbuf, "could not create a handle");
1.1 deraadt 242: print_err_message("\t\t");
1.12 deraadt 243: fprintf(fout, "\t\texit(1);\n");
244: fprintf(fout, "\t}\n");
1.1 deraadt 245: if (timerflag) {
1.12 deraadt 246: fprintf(fout, "\tif (_rpcpmstart) {\n");
247: fprintf(fout,
1.10 deraadt 248: "\t\t(void) signal(SIGALRM, %s closedown);\n",
249: Cflag? "(SIG_PF)" : "(void(*)())");
1.12 deraadt 250: fprintf(fout, "\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n");
251: fprintf(fout, "\t}\n");
1.1 deraadt 252: }
253: }
1.12 deraadt 254: fprintf(fout, "\tsvc_run();\n");
255: (void) snprintf(_errbuf, sizeof _errbuf, "svc_run returned");
1.1 deraadt 256: print_err_message("\t");
1.12 deraadt 257: fprintf(fout, "\texit(1);\n");
258: fprintf(fout, "\t/* NOTREACHED */\n");
259: fprintf(fout, "}\n");
1.1 deraadt 260: }
261:
262: void
263: write_programs(storage)
264: char *storage;
265: {
1.10 deraadt 266: definition *def;
1.9 deraadt 267: list *l;
1.1 deraadt 268:
269: /* write out stubs for procedure definitions */
270: for (l = defined; l != NULL; l = l->next) {
271: def = (definition *) l->val;
1.10 deraadt 272: if (def->def_kind == DEF_PROGRAM)
1.1 deraadt 273: write_real_program(def);
274: }
275:
276: /* write out dispatcher for each program */
277: for (l = defined; l != NULL; l = l->next) {
278: def = (definition *) l->val;
1.10 deraadt 279: if (def->def_kind == DEF_PROGRAM)
1.1 deraadt 280: write_program(def, storage);
281: }
282: }
283:
284: /* write out definition of internal function (e.g. _printmsg_1(...))
285: which calls server's defintion of actual function (e.g. printmsg_1(...)).
286: Unpacks single user argument of printmsg_1 to call-by-value format
287: expected by printmsg_1. */
1.15 deraadt 288: static void
1.1 deraadt 289: write_real_program(def)
290: definition *def;
291: {
292: version_list *vp;
293: proc_list *proc;
294: decl_list *l;
295:
1.10 deraadt 296: if (!newstyle) return; /* not needed for old style */
1.1 deraadt 297: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
298: for (proc = vp->procs; proc != NULL; proc = proc->next) {
1.12 deraadt 299: fprintf(fout, "\n");
1.1 deraadt 300: internal_proctype(proc);
1.12 deraadt 301: fprintf(fout, "\n_");
1.1 deraadt 302: pvname(proc->proc_name, vp->vers_num);
1.10 deraadt 303: if (Cflag) {
1.15 deraadt 304: fprintf(fout, "(");
305: /* arg name */
306: if (proc->arg_num > 1)
1.16 deraadt 307: fprintf(fout, "%s", proc->args.argname);
1.15 deraadt 308: else
309: ptype(proc->args.decls->decl.prefix,
310: proc->args.decls->decl.type, 0);
311: fprintf(fout, " *argp, struct svc_req *%s)\n",
312: RQSTP);
1.1 deraadt 313: } else {
1.15 deraadt 314: fprintf(fout, "(argp, %s)\n", RQSTP);
315: /* arg name */
316: if (proc->arg_num > 1)
317: fprintf(fout, "\t%s *argp;\n",
318: proc->args.argname);
319: else {
320: fprintf(fout, "\t");
321: ptype(proc->args.decls->decl.prefix,
322: proc->args.decls->decl.type, 0);
323: fprintf(fout, " *argp;\n");
324: }
325: fprintf(fout, " struct svc_req *%s;\n", RQSTP);
1.1 deraadt 326: }
327:
1.12 deraadt 328: fprintf(fout, "{\n");
329: fprintf(fout, "\treturn(");
1.1 deraadt 330: pvname_svc(proc->proc_name, vp->vers_num);
1.12 deraadt 331: fprintf(fout, "(");
1.1 deraadt 332: if (proc->arg_num < 2) { /* single argument */
1.15 deraadt 333: if (!streq(proc->args.decls->decl.type, "void"))
334: fprintf(fout, "*argp, "); /* non-void */
1.1 deraadt 335: } else {
1.15 deraadt 336: for (l = proc->args.decls; l != NULL; l = l->next)
337: fprintf(fout, "argp->%s, ", l->decl.name);
1.1 deraadt 338: }
1.12 deraadt 339: fprintf(fout, "%s));\n}\n", RQSTP);
1.10 deraadt 340: }
1.1 deraadt 341: }
342: }
343:
1.15 deraadt 344: static void
1.1 deraadt 345: write_program(def, storage)
346: definition *def;
347: char *storage;
348: {
349: version_list *vp;
350: proc_list *proc;
351: int filled;
352:
353: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
1.12 deraadt 354: fprintf(fout, "\n");
1.18 deraadt 355: if (storage != NULL)
356: fprintf(fout, "%s ", storage);
357: fprintf(fout, "void\t");
358: pvname(def->def_name, vp->vers_num);
359:
360: if (Cflag) {
361: fprintf(fout, "(struct svc_req *%s, ", RQSTP);
362: fprintf(fout, "SVCXPRT *%s);\n", TRANSP);
363: } else {
364: fprintf(fout, "()\n");
365: }
366: fprintf(fout, "\n");
367:
1.10 deraadt 368: if (storage != NULL)
1.12 deraadt 369: fprintf(fout, "%s ", storage);
370: fprintf(fout, "void\n");
1.1 deraadt 371: pvname(def->def_name, vp->vers_num);
372:
373: if (Cflag) {
1.12 deraadt 374: fprintf(fout, "(struct svc_req *%s, ", RQSTP);
1.17 deraadt 375: fprintf(fout, "SVCXPRT *%s)\n", TRANSP);
1.1 deraadt 376: } else {
1.12 deraadt 377: fprintf(fout, "(%s, %s)\n", RQSTP, TRANSP);
1.17 deraadt 378: fprintf(fout, " struct svc_req *%s;\n", RQSTP);
379: fprintf(fout, " SVCXPRT *%s;\n", TRANSP);
1.1 deraadt 380: }
1.12 deraadt 381: fprintf(fout, "{\n");
1.1 deraadt 382:
383: filled = 0;
1.12 deraadt 384: fprintf(fout, "\tunion {\n");
1.1 deraadt 385: for (proc = vp->procs; proc != NULL; proc = proc->next) {
386: if (proc->arg_num < 2) { /* single argument */
1.10 deraadt 387: if (streq(proc->args.decls->decl.type,
388: "void"))
1.1 deraadt 389: continue;
390: filled = 1;
1.12 deraadt 391: fprintf(fout, "\t\t");
1.10 deraadt 392: ptype(proc->args.decls->decl.prefix,
393: proc->args.decls->decl.type, 0);
1.1 deraadt 394: pvname(proc->proc_name, vp->vers_num);
1.12 deraadt 395: fprintf(fout, "_arg;\n");
1.1 deraadt 396:
1.10 deraadt 397: } else {
1.1 deraadt 398: filled = 1;
1.12 deraadt 399: fprintf(fout, "\t\t%s", proc->args.argname);
400: fprintf(fout, " ");
1.1 deraadt 401: pvname(proc->proc_name, vp->vers_num);
1.12 deraadt 402: fprintf(fout, "_arg;\n");
1.1 deraadt 403: }
404: }
1.10 deraadt 405: if (!filled)
1.12 deraadt 406: fprintf(fout, "\t\tint fill;\n");
407: fprintf(fout, "\t} %s;\n", ARG);
408: fprintf(fout, "\tchar *%s;\n", RESULT);
1.1 deraadt 409:
410: if (Cflag) {
1.12 deraadt 411: fprintf(fout, "\txdrproc_t xdr_%s, xdr_%s;\n", ARG, RESULT);
412: fprintf(fout,
1.1 deraadt 413: "\tchar *(*%s)(char *, struct svc_req *);\n",
414: ROUTINE);
415: } else {
1.12 deraadt 416: fprintf(fout, "\tbool_t (*xdr_%s)(), (*xdr_%s)();\n",
1.10 deraadt 417: ARG, RESULT);
1.12 deraadt 418: fprintf(fout, "\tchar *(*%s)();\n", ROUTINE);
1.1 deraadt 419: }
1.12 deraadt 420: fprintf(fout, "\n");
1.1 deraadt 421:
1.10 deraadt 422: if (callerflag)
1.12 deraadt 423: fprintf(fout, "\tcaller = transp;\n"); /*EVAS*/
1.1 deraadt 424: if (timerflag)
1.12 deraadt 425: fprintf(fout, "\t_rpcsvcdirty = 1;\n");
426: fprintf(fout, "\tswitch (%s->rq_proc) {\n", RQSTP);
1.1 deraadt 427: if (!nullproc(vp->procs)) {
1.12 deraadt 428: fprintf(fout, "\tcase NULLPROC:\n");
429: fprintf(fout,
1.10 deraadt 430: Cflag
431: ? "\t\t(void) svc_sendreply(%s, (xdrproc_t) xdr_void, (char *)NULL);\n"
432: : "\t\t(void) svc_sendreply(%s, xdr_void, (char *)NULL);\n",
433: TRANSP);
1.1 deraadt 434: print_return("\t\t");
1.12 deraadt 435: fprintf(fout, "\n");
1.1 deraadt 436: }
437: for (proc = vp->procs; proc != NULL; proc = proc->next) {
1.12 deraadt 438: fprintf(fout, "\tcase %s:\n", proc->proc_name);
1.1 deraadt 439: if (proc->arg_num < 2) { /* single argument */
1.10 deraadt 440: p_xdrfunc(ARG, proc->args.decls->decl.type);
1.1 deraadt 441: } else {
1.10 deraadt 442: p_xdrfunc(ARG, proc->args.argname);
1.1 deraadt 443: }
1.10 deraadt 444: p_xdrfunc(RESULT, proc->res_type);
445: if (Cflag)
1.12 deraadt 446: fprintf(fout,
1.1 deraadt 447: "\t\t%s = (char *(*)(char *, struct svc_req *)) ",
448: ROUTINE);
449: else
1.12 deraadt 450: fprintf(fout, "\t\t%s = (char *(*)()) ", ROUTINE);
1.1 deraadt 451:
452: if (newstyle) { /* new style: calls internal routine */
1.12 deraadt 453: fprintf(fout,"_");
1.1 deraadt 454: }
1.10 deraadt 455: if (!newstyle)
456: pvname_svc(proc->proc_name, vp->vers_num);
1.1 deraadt 457: else
1.10 deraadt 458: pvname(proc->proc_name, vp->vers_num);
1.12 deraadt 459: fprintf(fout, ";\n");
460: fprintf(fout, "\t\tbreak;\n\n");
1.1 deraadt 461: }
1.12 deraadt 462: fprintf(fout, "\tdefault:\n");
1.1 deraadt 463: printerr("noproc", TRANSP);
464: print_return("\t\t");
1.12 deraadt 465: fprintf(fout, "\t}\n");
1.1 deraadt 466:
1.12 deraadt 467: fprintf(fout, "\t(void) memset((char *)&%s, 0, sizeof (%s));\n", ARG, ARG);
1.10 deraadt 468: printif ("getargs", TRANSP, "(caddr_t) &", ARG);
1.1 deraadt 469: printerr("decode", TRANSP);
470: print_return("\t\t");
1.12 deraadt 471: fprintf(fout, "\t}\n");
1.1 deraadt 472:
473: if (Cflag)
1.12 deraadt 474: fprintf(fout, "\t%s = (*%s)((char *)&%s, %s);\n",
1.1 deraadt 475: RESULT, ROUTINE, ARG, RQSTP);
476: else
1.12 deraadt 477: fprintf(fout, "\t%s = (*%s)(&%s, %s);\n",
1.1 deraadt 478: RESULT, ROUTINE, ARG, RQSTP);
1.12 deraadt 479: fprintf(fout,
1.10 deraadt 480: "\tif (%s != NULL && !svc_sendreply(%s, xdr_%s, %s)) {\n",
481: RESULT, TRANSP, RESULT, RESULT);
1.1 deraadt 482: printerr("systemerr", TRANSP);
1.12 deraadt 483: fprintf(fout, "\t}\n");
1.1 deraadt 484:
1.10 deraadt 485: printif ("freeargs", TRANSP, "(caddr_t) &", ARG);
1.12 deraadt 486: (void) snprintf(_errbuf, sizeof _errbuf, "unable to free arguments");
1.1 deraadt 487: print_err_message("\t\t");
1.12 deraadt 488: fprintf(fout, "\t\texit(1);\n");
489: fprintf(fout, "\t}\n");
1.1 deraadt 490: print_return("\t");
1.12 deraadt 491: fprintf(fout, "}\n");
1.1 deraadt 492: }
493: }
494:
1.15 deraadt 495: static void
1.1 deraadt 496: printerr(err, transp)
497: char *err;
498: char *transp;
499: {
1.12 deraadt 500: fprintf(fout, "\t\tsvcerr_%s(%s);\n", err, transp);
1.1 deraadt 501: }
502:
1.15 deraadt 503: static void
504: printif(proc, transp, prefix, arg)
1.1 deraadt 505: char *proc;
506: char *transp;
507: char *prefix;
508: char *arg;
509: {
1.12 deraadt 510: fprintf(fout, "\tif (!svc_%s(%s, xdr_%s, %s%s)) {\n",
1.10 deraadt 511: proc, transp, arg, prefix, arg);
1.1 deraadt 512: }
513:
1.15 deraadt 514: int
1.1 deraadt 515: nullproc(proc)
516: proc_list *proc;
517: {
518: for (; proc != NULL; proc = proc->next) {
1.10 deraadt 519: if (streq(proc->proc_num, "0"))
1.1 deraadt 520: return (1);
521: }
522: return (0);
523: }
524:
1.15 deraadt 525: static void
1.1 deraadt 526: write_inetmost(infile)
527: char *infile;
528: {
1.17 deraadt 529: fprintf(fout, "\tSVCXPRT *%s;\n", TRANSP);
1.12 deraadt 530: fprintf(fout, "\tint sock;\n");
531: fprintf(fout, "\tint proto;\n");
532: fprintf(fout, "\tstruct sockaddr_in saddr;\n");
533: fprintf(fout, "\tint asize = sizeof (saddr);\n");
534: fprintf(fout, "\n");
535: fprintf(fout,
1.1 deraadt 536: "\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n");
1.12 deraadt 537: fprintf(fout, "\t\tint ssize = sizeof (int);\n\n");
538: fprintf(fout, "\t\tif (saddr.sin_family != AF_INET)\n");
539: fprintf(fout, "\t\t\texit(1);\n");
540: fprintf(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n");
541: fprintf(fout, "\t\t (char *)&_rpcfdtype, &ssize) == -1)\n");
542: fprintf(fout, "\t\t\texit(1);\n");
543: fprintf(fout, "\t\tsock = 0;\n");
544: fprintf(fout, "\t\t_rpcpmstart = 1;\n");
545: fprintf(fout, "\t\tproto = 0;\n");
1.1 deraadt 546: open_log_file(infile, "\t\t");
1.12 deraadt 547: fprintf(fout, "\t} else {\n");
1.1 deraadt 548: write_rpc_svc_fg(infile, "\t\t");
1.12 deraadt 549: fprintf(fout, "\t\tsock = RPC_ANYSOCK;\n");
1.1 deraadt 550: print_pmapunset("\t\t");
1.12 deraadt 551: fprintf(fout, "\t}\n");
1.1 deraadt 552: }
553:
1.15 deraadt 554: static void
1.1 deraadt 555: print_return(space)
556: char *space;
557: {
558: if (exitnow)
1.12 deraadt 559: fprintf(fout, "%sexit(0);\n", space);
1.1 deraadt 560: else {
561: if (timerflag)
1.12 deraadt 562: fprintf(fout, "%s_rpcsvcdirty = 0;\n", space);
563: fprintf(fout, "%sreturn;\n", space);
1.1 deraadt 564: }
565: }
566:
1.15 deraadt 567: static void
1.1 deraadt 568: print_pmapunset(space)
569: char *space;
570: {
1.10 deraadt 571: version_list *vp;
572: definition *def;
1.9 deraadt 573: list *l;
1.1 deraadt 574:
575: for (l = defined; l != NULL; l = l->next) {
576: def = (definition *) l->val;
577: if (def->def_kind == DEF_PROGRAM) {
578: for (vp = def->def.pr.versions; vp != NULL;
1.10 deraadt 579: vp = vp->next) {
1.12 deraadt 580: fprintf(fout, "%s(void) pmap_unset(%s, %s);\n",
1.10 deraadt 581: space, def->def_name, vp->vers_name);
1.1 deraadt 582: }
583: }
584: }
585: }
586:
1.15 deraadt 587: static void
1.1 deraadt 588: print_err_message(space)
589: char *space;
590: {
591: if (logflag)
1.13 deraadt 592: fprintf(fout, "%ssyslog(LOG_ERR, \"%%s\", \"%s\");\n", space, _errbuf);
1.1 deraadt 593: else if (inetdflag || pmflag)
1.12 deraadt 594: fprintf(fout, "%s_msgout(\"%s\");\n", space, _errbuf);
1.1 deraadt 595: else
1.12 deraadt 596: fprintf(fout, "%sfprintf(stderr, \"%s\");\n", space, _errbuf);
1.1 deraadt 597: }
598:
599: /*
1.10 deraadt 600: * Write the server auxiliary function (_msgout, timeout)
1.1 deraadt 601: */
602: void
1.10 deraadt 603: write_svc_aux(nomain)
1.15 deraadt 604: int nomain;
1.1 deraadt 605: {
606: if (!logflag)
607: write_msg_out();
1.10 deraadt 608: if (!nomain)
609: write_timeout_func();
1.1 deraadt 610: if (callerflag) /*EVAS*/
611: write_caller_func(); /*EVAS*/
612: }
613:
614: /*
615: * Write the _msgout function
616: */
617:
1.15 deraadt 618: void
1.1 deraadt 619: write_msg_out()
620: {
1.12 deraadt 621: fprintf(fout, "\n");
622: fprintf(fout, "static\n");
1.10 deraadt 623: if (!Cflag) {
1.12 deraadt 624: fprintf(fout, "void _msgout(msg)\n");
625: fprintf(fout, "\tchar *msg;\n");
1.1 deraadt 626: } else {
1.12 deraadt 627: fprintf(fout, "void _msgout(char *msg)\n");
1.1 deraadt 628: }
1.12 deraadt 629: fprintf(fout, "{\n");
630: fprintf(fout, "#ifdef RPC_SVC_FG\n");
1.1 deraadt 631: if (inetdflag || pmflag)
1.12 deraadt 632: fprintf(fout, "\tif (_rpcpmstart)\n");
1.13 deraadt 633: fprintf(fout, "\t\tsyslog(LOG_ERR, \"%%s\", msg);\n");
1.12 deraadt 634: fprintf(fout, "\telse {\n");
635: fprintf(fout, "\t\t(void) write(STDERR_FILENO, msg, strlen(msg));\n");
636: fprintf(fout, "\t\t(void) write(STDERR_FILENO, \"\\n\", 1);\n");
637: fprintf(fout, "\t}\n#else\n");
1.13 deraadt 638: fprintf(fout, "\tsyslog(LOG_ERR, \"%%s\", msg);\n");
1.12 deraadt 639: fprintf(fout, "#endif\n");
640: fprintf(fout, "}\n");
1.1 deraadt 641: }
642:
643: /*
644: * Write the timeout function
645: */
1.15 deraadt 646: static void
1.1 deraadt 647: write_timeout_func()
648: {
649: if (!timerflag)
650: return;
1.12 deraadt 651: fprintf(fout, "\n");
652: fprintf(fout, "static void\n");
653: fprintf(fout, "closedown()\n");
654: fprintf(fout, "{\n");
655: fprintf(fout, "\tint save_errno = errno;\n\n");
656: fprintf(fout, "\tif (_rpcsvcdirty == 0) {\n");
657: fprintf(fout, "\t\textern fd_set *__svc_fdset;\n");
658: fprintf(fout, "\t\textern int __svc_fdsetsize;\n");
659: fprintf(fout, "\t\tint i, openfd;\n");
1.1 deraadt 660: if (tirpcflag && pmflag) {
1.12 deraadt 661: fprintf(fout, "\t\tstruct t_info tinfo;\n\n");
662: fprintf(fout, "\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n");
1.1 deraadt 663: } else {
1.12 deraadt 664: fprintf(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n");
1.1 deraadt 665: }
1.12 deraadt 666: fprintf(fout, "\t\t\t_exit(0);\n");
667: fprintf(fout, "\t\tfor (i = 0, openfd = 0; i < __svc_fdsetsize && openfd < 2; i++)\n");
668: fprintf(fout, "\t\t\tif (FD_ISSET(i, __svc_fdset))\n");
669: fprintf(fout, "\t\t\t\topenfd++;\n");
670: fprintf(fout, "\t\tif (openfd <= (_rpcpmstart?0:1))\n");
671: fprintf(fout, "\t\t\t_exit(0);\n");
672: fprintf(fout, "\t}\n");
673: fprintf(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN);\n");
674: fprintf(fout, "\terrno = save_errno;\n");
675: fprintf(fout, "}\n");
1.1 deraadt 676: }
677:
1.15 deraadt 678: static void
1.1 deraadt 679: write_caller_func() /*EVAS*/
680: {
1.12 deraadt 681: #define P(s) fprintf(fout, s);
1.1 deraadt 682:
683: P("\n");
684: P("char *svc_caller()\n");
685: P("{\n");
686: P(" struct sockaddr_in actual;\n");
687: P(" struct hostent *hp;\n");
688: P(" static struct in_addr prev;\n");
1.12 deraadt 689: P(" static char cname[256];\n\n");
1.1 deraadt 690:
691: P(" actual = *svc_getcaller(caller);\n\n");
692:
693: P(" if (memcmp((char *)&actual.sin_addr, (char *)&prev,\n");
694: P(" sizeof(struct in_addr)) == 0)\n");
695: P(" return (cname);\n\n");
696:
697: P(" prev = actual.sin_addr;\n\n");
698:
699: P(" hp = gethostbyaddr((char *) &actual.sin_addr, sizeof(actual.sin_addr), AF_INET);\n");
700: P(" if (hp == NULL) { /* dummy one up */\n");
701: P(" extern char *inet_ntoa();\n");
1.12 deraadt 702: P(" strlcpy(cname, inet_ntoa(actual.sin_addr), sizeof cname);\n");
1.1 deraadt 703: P(" } else {\n");
1.12 deraadt 704: P(" strlcpy(cname, hp->h_name, sizeof cname);\n");
1.1 deraadt 705: P(" }\n\n");
706:
707: P(" return (cname);\n");
708: P("}\n");
709:
710: #undef P
711: }
712:
713: /*
714: * Write the most of port monitor support
715: */
1.15 deraadt 716: static void
1.1 deraadt 717: write_pm_most(infile, netflag)
718: char *infile;
719: int netflag;
720: {
721: list *l;
722: definition *def;
723: version_list *vp;
724:
1.12 deraadt 725: fprintf(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n");
726: fprintf(fout, "\t\t(!strcmp(mname, \"sockmod\") ||");
727: fprintf(fout, " !strcmp(mname, \"timod\"))) {\n");
728: fprintf(fout, "\t\tchar *netid;\n");
1.1 deraadt 729: if (!netflag) { /* Not included by -n option */
1.12 deraadt 730: fprintf(fout, "\t\tstruct netconfig *nconf = NULL;\n");
731: fprintf(fout, "\t\tSVCXPRT *%s;\n", TRANSP);
1.1 deraadt 732: }
1.10 deraadt 733: if (timerflag)
1.15 deraadt 734: fprintf(fout, "\t\tint pmclose;\n");
1.1 deraadt 735: /* not necessary, defined in /usr/include/stdlib */
1.12 deraadt 736: /* fprintf(fout, "\t\textern char *getenv();\n");*/
737: fprintf(fout, "\n");
738: fprintf(fout, "\t\t_rpcpmstart = 1;\n");
1.1 deraadt 739: if (logflag)
740: open_log_file(infile, "\t\t");
1.12 deraadt 741: fprintf(fout, "\t\tif ((netid = getenv(\"NLSPROVIDER\")) == NULL) {\n");
742: snprintf(_errbuf, sizeof _errbuf, "cannot get transport name");
1.1 deraadt 743: print_err_message("\t\t\t");
1.12 deraadt 744: fprintf(fout, "\t\t} else if ((nconf = getnetconfigent(netid)) == NULL) {\n");
745: snprintf(_errbuf, sizeof _errbuf, "cannot get transport info");
1.1 deraadt 746: print_err_message("\t\t\t");
1.12 deraadt 747: fprintf(fout, "\t\t}\n");
1.1 deraadt 748: /*
749: * A kludgy support for inetd services. Inetd only works with
750: * sockmod, and RPC works only with timod, hence all this jugglery
751: */
1.12 deraadt 752: fprintf(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n");
753: fprintf(fout, "\t\t\tif (ioctl(0, I_POP, 0) || ioctl(0, I_PUSH, \"timod\")) {\n");
754: snprintf(_errbuf, sizeof _errbuf, "could not get the right module");
1.1 deraadt 755: print_err_message("\t\t\t\t");
1.12 deraadt 756: fprintf(fout, "\t\t\t\texit(1);\n");
757: fprintf(fout, "\t\t\t}\n");
758: fprintf(fout, "\t\t}\n");
1.10 deraadt 759: if (timerflag)
1.15 deraadt 760: fprintf(fout, "\t\tpmclose = (t_getstate(0) != T_DATAXFER);\n");
1.12 deraadt 761: fprintf(fout, "\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) == NULL) {\n",
1.1 deraadt 762: TRANSP);
1.12 deraadt 763: snprintf(_errbuf, sizeof _errbuf, "cannot create server handle");
1.1 deraadt 764: print_err_message("\t\t\t");
1.12 deraadt 765: fprintf(fout, "\t\t\texit(1);\n");
766: fprintf(fout, "\t\t}\n");
767: fprintf(fout, "\t\tif (nconf)\n");
768: fprintf(fout, "\t\t\tfreenetconfigent(nconf);\n");
1.1 deraadt 769: for (l = defined; l != NULL; l = l->next) {
770: def = (definition *) l->val;
771: if (def->def_kind != DEF_PROGRAM) {
772: continue;
773: }
774: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
1.12 deraadt 775: fprintf(fout,
1.1 deraadt 776: "\t\tif (!svc_reg(%s, %s, %s, ",
777: TRANSP, def->def_name, vp->vers_name);
778: pvname(def->def_name, vp->vers_num);
1.12 deraadt 779: fprintf(fout, ", 0)) {\n");
780: (void) snprintf(_errbuf, sizeof _errbuf, "unable to register (%s, %s).",
1.1 deraadt 781: def->def_name, vp->vers_name);
782: print_err_message("\t\t\t");
1.12 deraadt 783: fprintf(fout, "\t\t\texit(1);\n");
784: fprintf(fout, "\t\t}\n");
1.1 deraadt 785: }
786: }
787: if (timerflag) {
1.12 deraadt 788: fprintf(fout, "\t\tif (pmclose) {\n");
789: fprintf(fout, "\t\t\t(void) signal(SIGALRM, %s closedown);\n",
1.10 deraadt 790: Cflag? "(SIG_PF)" : "(void(*)())");
1.12 deraadt 791: fprintf(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN);\n");
792: fprintf(fout, "\t\t}\n");
1.1 deraadt 793: }
1.12 deraadt 794: fprintf(fout, "\t\tsvc_run();\n");
795: fprintf(fout, "\t\texit(1);\n");
796: fprintf(fout, "\t\t/* NOTREACHED */\n");
797: fprintf(fout, "\t}\n");
1.1 deraadt 798: }
799:
800: /*
801: * Support for backgrounding the server if self started.
802: */
1.15 deraadt 803: static void
1.1 deraadt 804: write_rpc_svc_fg(infile, sp)
805: char *infile;
806: char *sp;
807: {
1.12 deraadt 808: fprintf(fout, "#ifndef RPC_SVC_FG\n");
809: fprintf(fout, "%sint size;\n", sp);
1.10 deraadt 810: if (tirpcflag)
1.15 deraadt 811: fprintf(fout, "%sstruct rlimit rl;\n", sp);
1.14 mpech 812: if (inetdflag) {
813: fprintf(fout, "%sint i;\n\n", sp);
814: fprintf(fout, "%spid_t pid;\n\n", sp);
815: }
1.12 deraadt 816: fprintf(fout, "%spid = fork();\n", sp);
817: fprintf(fout, "%sif (pid < 0) {\n", sp);
818: fprintf(fout, "%s\tperror(\"cannot fork\");\n", sp);
819: fprintf(fout, "%s\texit(1);\n", sp);
820: fprintf(fout, "%s}\n", sp);
821: fprintf(fout, "%sif (pid)\n", sp);
822: fprintf(fout, "%s\texit(0);\n", sp);
1.1 deraadt 823: /* get number of file descriptors */
1.10 deraadt 824: if (tirpcflag) {
1.15 deraadt 825: fprintf(fout, "%srl.rlim_max = 0;\n", sp);
826: fprintf(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp);
827: fprintf(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp);
828: fprintf(fout, "%s\texit(1);\n", sp);
1.1 deraadt 829: } else {
1.15 deraadt 830: fprintf(fout, "%ssize = getdtablesize();\n", sp);
1.1 deraadt 831: }
832:
1.12 deraadt 833: fprintf(fout, "%sfor (i = 0; i < size; i++)\n", sp);
834: fprintf(fout, "%s\t(void) close(i);\n", sp);
1.1 deraadt 835: /* Redirect stderr and stdout to console */
1.12 deraadt 836: fprintf(fout, "%si = open(\"/dev/console\", 2);\n", sp);
837: fprintf(fout, "%s(void) dup2(i, 1);\n", sp);
838: fprintf(fout, "%s(void) dup2(i, 2);\n", sp);
1.1 deraadt 839: /* This removes control of the controlling terminal */
1.10 deraadt 840: if (tirpcflag)
1.15 deraadt 841: fprintf(fout, "%ssetsid();\n", sp);
1.1 deraadt 842: else {
1.15 deraadt 843: fprintf(fout, "%si = open(\"/dev/tty\", 2);\n", sp);
844: fprintf(fout, "%sif (i >= 0) {\n", sp);
845: fprintf(fout, "%s\t(void) ioctl(i, TIOCNOTTY, (char *)NULL);\n", sp);;
846: fprintf(fout, "%s\t(void) close(i);\n", sp);
847: fprintf(fout, "%s}\n", sp);
1.1 deraadt 848: }
849: if (!logflag)
850: open_log_file(infile, sp);
1.12 deraadt 851: fprintf(fout, "#endif\n");
1.1 deraadt 852: if (logflag)
853: open_log_file(infile, sp);
854: }
855:
1.15 deraadt 856: static void
1.1 deraadt 857: open_log_file(infile, sp)
858: char *infile;
859: char *sp;
860: {
861: char *s;
862:
863: s = strrchr(infile, '.');
1.10 deraadt 864: if (s)
1.1 deraadt 865: *s = '\0';
1.12 deraadt 866: fprintf(fout,"%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, infile);
1.1 deraadt 867: if (s)
868: *s = '.';
869: }
870:
871: /*
872: * write a registration for the given transport for Inetd
873: */
874: void
875: write_inetd_register(transp)
876: char *transp;
877: {
878: list *l;
879: definition *def;
880: version_list *vp;
881: char *sp;
882: int isudp;
883: char tmpbuf[32];
884:
885: if (inetdflag)
886: sp = "\t";
887: else
888: sp = "";
889: if (streq(transp, "udp"))
890: isudp = 1;
891: else
892: isudp = 0;
1.12 deraadt 893: fprintf(fout, "\n");
1.1 deraadt 894: if (inetdflag) {
1.12 deraadt 895: fprintf(fout, "\tif (_rpcfdtype == 0 || _rpcfdtype == %s) {\n",
1.1 deraadt 896: isudp ? "SOCK_DGRAM" : "SOCK_STREAM");
897: }
898: if (inetdflag && streq(transp, "tcp")) {
1.12 deraadt 899: fprintf(fout, "%s\tif (_rpcpmstart)\n", sp);
1.1 deraadt 900:
1.12 deraadt 901: fprintf(fout, "%s\t\t%s = svc%s_create(%s",
1.1 deraadt 902: sp, TRANSP, "fd", inetdflag? "sock": "RPC_ANYSOCK");
903: if (!isudp)
1.12 deraadt 904: fprintf(fout, ", 0, 0");
905: fprintf(fout, ");\n");
1.1 deraadt 906:
1.12 deraadt 907: fprintf(fout, "%s\telse\n", sp);
1.1 deraadt 908:
1.12 deraadt 909: fprintf(fout, "%s\t\t%s = svc%s_create(%s",
1.1 deraadt 910: sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK");
911: if (!isudp)
1.12 deraadt 912: fprintf(fout, ", 0, 0");
913: fprintf(fout, ");\n");
1.1 deraadt 914:
915: } else {
1.12 deraadt 916: fprintf(fout, "%s\t%s = svc%s_create(%s",
1.1 deraadt 917: sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK");
918: if (!isudp)
1.12 deraadt 919: fprintf(fout, ", 0, 0");
920: fprintf(fout, ");\n");
1.1 deraadt 921: }
1.12 deraadt 922: fprintf(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP);
923: (void) snprintf(_errbuf, sizeof _errbuf, "cannot create %s service.", transp);
924: (void) snprintf(tmpbuf, sizeof tmpbuf, "%s\t\t", sp);
1.1 deraadt 925: print_err_message(tmpbuf);
1.12 deraadt 926: fprintf(fout, "%s\t\texit(1);\n", sp);
927: fprintf(fout, "%s\t}\n", sp);
1.1 deraadt 928:
929: if (inetdflag) {
1.12 deraadt 930: fprintf(fout, "%s\tif (!_rpcpmstart)\n\t", sp);
931: fprintf(fout, "%s\tproto = IPPROTO_%s;\n",
1.1 deraadt 932: sp, isudp ? "UDP": "TCP");
933: }
934: for (l = defined; l != NULL; l = l->next) {
935: def = (definition *) l->val;
936: if (def->def_kind != DEF_PROGRAM) {
937: continue;
938: }
939: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
1.12 deraadt 940: fprintf(fout, "%s\tif (!svc_register(%s, %s, %s, ",
1.1 deraadt 941: sp, TRANSP, def->def_name, vp->vers_name);
942: pvname(def->def_name, vp->vers_num);
943: if (inetdflag)
1.12 deraadt 944: fprintf(fout, ", proto)) {\n");
1.10 deraadt 945: else
1.12 deraadt 946: fprintf(fout, ", IPPROTO_%s)) {\n",
1.1 deraadt 947: isudp ? "UDP": "TCP");
1.12 deraadt 948: (void) snprintf(_errbuf, sizeof _errbuf, "unable to register (%s, %s, %s).",
1.1 deraadt 949: def->def_name, vp->vers_name, transp);
950: print_err_message(tmpbuf);
1.12 deraadt 951: fprintf(fout, "%s\t\texit(1);\n", sp);
952: fprintf(fout, "%s\t}\n", sp);
1.1 deraadt 953: }
954: }
955: if (inetdflag)
1.12 deraadt 956: fprintf(fout, "\t}\n");
1.1 deraadt 957: }
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