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1 /*
2  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3  * unrestricted use provided that this legend is included on all tape
4  * media and as a part of the software program in whole or part.  Users
5  * may copy or modify Sun RPC without charge, but are not authorized
6  * to license or distribute it to anyone else except as part of a product or
7  * program developed by the user.
8  *
9  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
12  *
13  * Sun RPC is provided with no support and without any obligation on the
14  * part of Sun Microsystems, Inc. to assist in its use, correction,
15  * modification or enhancement.
16  *
17  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19  * OR ANY PART THEREOF.
20  *
21  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22  * or profits or other special, indirect and consequential damages, even if
23  * Sun has been advised of the possibility of such damages.
24  *
25  * Sun Microsystems, Inc.
26  * 2550 Garcia Avenue
27  * Mountain View, California  94043
28  */
29
30
31 #if 0
32 #ifndef lint
33 #ident  "@(#)rpc_main.c 1.21    94/04/25 SMI"
34 static char sccsid[] = "@(#)rpc_main.c 1.30 89/03/30 (C) 1987 SMI";
35 #endif
36 #endif
37
38 #include <sys/cdefs.h>
39 __FBSDID("$FreeBSD$");
40
41 /*
42  * rpc_main.c, Top level of the RPC protocol compiler.
43  * Copyright (C) 1987, Sun Microsystems, Inc.
44  */
45
46 #include <err.h>
47 #include <ctype.h>
48 #include <stdio.h>
49 #include <string.h>
50 #include <unistd.h>
51 #include <sys/types.h>
52 #include <sys/param.h>
53 #include <sys/file.h>
54 #include <sys/stat.h>
55 #include "rpc_parse.h"
56 #include "rpc_scan.h"
57 #include "rpc_util.h"
58
59 static void c_output(const char *, const char *, int, const char *);
60 static void h_output(const char *, const char *, int, const char *, int);
61 static void l_output(const char *, const char *, int, const char *);
62 static void t_output(const char *, const char *, int, const char *);
63 static void clnt_output(const char *, const char *, int, const char * );
64 static char *generate_guard(const char *);
65 static void c_initialize(void);
66
67 static void usage(void);
68 static void options_usage(void);
69 static int do_registers(int, const char **);
70 static int parseargs(int, const char **, struct commandline *);
71 static void svc_output(const char *, const char *, int, const char *);
72 static void mkfile_output(struct commandline *);
73 static void s_output(int, const char **, const char *, const char *, int, const char *, int, int);
74
75 #define EXTEND  1               /* alias for TRUE */
76 #define DONT_EXTEND     0               /* alias for FALSE */
77
78 static const char *svcclosetime = "120";
79 static const char *CPP = NULL;
80 static const char CPPFLAGS[] = "-C";
81 static char pathbuf[MAXPATHLEN + 1];
82 static const char *allv[] = {
83         "rpcgen", "-s", "udp", "-s", "tcp",
84 };
85 static int allc = sizeof (allv)/sizeof (allv[0]);
86 static const char *allnv[] = {
87         "rpcgen", "-s", "netpath",
88 };
89 static int allnc = sizeof (allnv)/sizeof (allnv[0]);
90
91 /*
92  * machinations for handling expanding argument list
93  */
94 static void addarg(const char *);       /* add another argument to the list */
95 static void insarg(int, const char *);  /* insert arg at specified location */
96 static void clear_args(void);           /* clear argument list */
97 static void checkfiles(const char *, const char *);
98                                         /* check if out file already exists */
99
100
101
102 #define ARGLISTLEN      20
103 #define FIXEDARGS       0
104
105 static char *arglist[ARGLISTLEN];
106 static int argcount = FIXEDARGS;
107
108
109 int nonfatalerrors;     /* errors */
110 int inetdflag = 0;      /* Support for inetd is disabled by default, use -I */
111 int pmflag = 0;         /* Support for port monitors is disabled by default */
112 int tirpc_socket = 1;   /* TI-RPC on socket, no TLI library */
113 int logflag;            /* Use syslog instead of fprintf for errors */
114 int tblflag;            /* Support for dispatch table file */
115 int mtflag = 0;         /* Support for MT */
116
117 #define INLINE 0
118 /* length at which to start doing an inline */
119
120 int inline_size = INLINE;
121 /*
122  * Length at which to start doing an inline. INLINE = default
123  * if 0, no xdr_inline code
124  */
125
126 int indefinitewait;     /* If started by port monitors, hang till it wants */
127 int exitnow;            /* If started by port monitors, exit after the call */
128 int timerflag;          /* TRUE if !indefinite && !exitnow */
129 int newstyle;           /* newstyle of passing arguments (by value) */
130 int CCflag = 0;         /* C++ files */
131 static int allfiles;   /* generate all files */
132 int tirpcflag = 1;    /* generating code for tirpc, by default */
133 xdrfunc *xdrfunc_head = NULL; /* xdr function list */
134 xdrfunc *xdrfunc_tail = NULL; /* xdr function list */
135 pid_t childpid;
136
137
138 int
139 main(int argc, const char *argv[])
140 {
141         struct commandline cmd;
142
143         (void) memset((char *)&cmd, 0, sizeof (struct commandline));
144         clear_args();
145         if (!parseargs(argc, argv, &cmd))
146                 usage();
147         /*
148          * Only the client and server side stubs are likely to be customized,
149          *  so in that case only, check if the outfile exists, and if so,
150          *  print an error message and exit.
151          */
152         if (cmd.Ssflag || cmd.Scflag || cmd.makefileflag) {
153                 checkfiles(cmd.infile, cmd.outfile);
154         }
155         else
156                 checkfiles(cmd.infile, NULL);
157
158         if (cmd.cflag) {
159                 c_output(cmd.infile, "-DRPC_XDR", DONT_EXTEND, cmd.outfile);
160         } else if (cmd.hflag) {
161                 h_output(cmd.infile, "-DRPC_HDR", DONT_EXTEND, cmd.outfile,
162                     cmd.hflag);
163         } else if (cmd.lflag) {
164                 l_output(cmd.infile, "-DRPC_CLNT", DONT_EXTEND, cmd.outfile);
165         } else if (cmd.sflag || cmd.mflag || (cmd.nflag)) {
166                 s_output(argc, argv, cmd.infile, "-DRPC_SVC", DONT_EXTEND,
167                         cmd.outfile, cmd.mflag, cmd.nflag);
168         } else if (cmd.tflag) {
169                 t_output(cmd.infile, "-DRPC_TBL", DONT_EXTEND, cmd.outfile);
170         } else if  (cmd.Ssflag) {
171                 svc_output(cmd.infile, "-DRPC_SERVER", DONT_EXTEND,
172                         cmd.outfile);
173         } else if (cmd.Scflag) {
174                 clnt_output(cmd.infile, "-DRPC_CLIENT", DONT_EXTEND,
175                             cmd.outfile);
176         } else if (cmd.makefileflag) {
177                 mkfile_output(&cmd);
178         } else {
179                 /* the rescans are required, since cpp may effect input */
180                 c_output(cmd.infile, "-DRPC_XDR", EXTEND, "_xdr.c");
181                 reinitialize();
182                 h_output(cmd.infile, "-DRPC_HDR", EXTEND, ".h", cmd.hflag);
183                 reinitialize();
184                 l_output(cmd.infile, "-DRPC_CLNT", EXTEND, "_clnt.c");
185                 reinitialize();
186                 if (inetdflag || !tirpcflag)
187                         s_output(allc, allv, cmd.infile, "-DRPC_SVC", EXTEND,
188                         "_svc.c", cmd.mflag, cmd.nflag);
189                 else
190                         s_output(allnc, allnv, cmd.infile, "-DRPC_SVC",
191                                 EXTEND, "_svc.c", cmd.mflag, cmd.nflag);
192                 if (tblflag) {
193                         reinitialize();
194                         t_output(cmd.infile, "-DRPC_TBL", EXTEND, "_tbl.i");
195                 }
196
197                 if (allfiles) {
198                         reinitialize();
199                         svc_output(cmd.infile, "-DRPC_SERVER", EXTEND,
200                                 "_server.c");
201                         reinitialize();
202                         clnt_output(cmd.infile, "-DRPC_CLIENT", EXTEND,
203                                 "_client.c");
204
205                 }
206                 if (allfiles || (cmd.makefileflag == 1)){
207                         reinitialize();
208                         mkfile_output(&cmd);
209                 }
210
211         }
212         exit(nonfatalerrors);
213         /* NOTREACHED */
214 }
215
216
217 /*
218  * add extension to filename
219  */
220 static char *
221 extendfile(const char *path, const char *ext)
222 {
223         char *res;
224         const char *p;
225         const char *file;
226
227         if ((file = strrchr(path, '/')) == NULL)
228                 file = path;
229         else
230                 file++;
231         res = xmalloc(strlen(file) + strlen(ext) + 1);
232         p = strrchr(file, '.');
233         if (p == NULL) {
234                 p = file + strlen(file);
235         }
236         (void) strcpy(res, file);
237         (void) strcpy(res + (p - file), ext);
238         return (res);
239 }
240
241 /*
242  * Open output file with given extension
243  */
244 static void
245 open_output(const char *infile, const char *outfile)
246 {
247
248         if (outfile == NULL) {
249                 fout = stdout;
250                 return;
251         }
252
253         if (infile != NULL && streq(outfile, infile)) {
254                 warnx("%s already exists. No output generated", infile);
255                 crash();
256         }
257         fout = fopen(outfile, "w");
258         if (fout == NULL) {
259                 warn("unable to open %s", outfile);
260                 crash();
261         }
262         record_open(outfile);
263
264         return;
265 }
266
267 static void
268 add_warning(void)
269 {
270         f_print(fout, "/*\n");
271         f_print(fout, " * Please do not edit this file.\n");
272         f_print(fout, " * It was generated using rpcgen.\n");
273         f_print(fout, " */\n\n");
274 }
275
276 /* clear list of arguments */
277 static void
278 clear_args(void)
279 {
280         int i;
281         for (i = FIXEDARGS; i < ARGLISTLEN; i++)
282                 arglist[i] = NULL;
283         argcount = FIXEDARGS;
284 }
285
286 /* prepend C-preprocessor and flags before arguments */
287 static void
288 prepend_cpp(void)
289 {
290         int idx = 1;
291         const char *var;
292         char *dupvar, *s, *t;
293
294         if (CPP != NULL)
295                 insarg(0, CPP);
296         else if ((var = getenv("RPCGEN_CPP")) == NULL)
297                 insarg(0, "/usr/bin/cpp");
298         else {
299                 /* Parse command line in a rudimentary way */
300                 dupvar = xstrdup(var);
301                 for (s = dupvar, idx = 0; (t = strsep(&s, " \t")) != NULL; ) {
302                         if (t[0])
303                                 insarg(idx++, t);
304                 }
305                 free(dupvar);
306         }
307
308         insarg(idx, CPPFLAGS);
309 }
310
311 /*
312  * Open input file with given define for C-preprocessor
313  */
314 static void
315 open_input(const char *infile, const char *define)
316 {
317         int pd[2];
318
319         infilename = (infile == NULL) ? "<stdin>" : infile;
320         (void) pipe(pd);
321         switch (childpid = fork()) {
322         case 0:
323                 prepend_cpp();
324                 addarg(define);
325                 if (infile)
326                         addarg(infile);
327                 addarg((char *)NULL);
328                 (void) close(1);
329                 (void) dup2(pd[1], 1);
330                 (void) close(pd[0]);
331                 execvp(arglist[0], arglist);
332                 err(1, "execvp %s", arglist[0]);
333         case -1:
334                 err(1, "fork");
335         }
336         (void) close(pd[1]);
337         fin = fdopen(pd[0], "r");
338         if (fin == NULL) {
339                 warn("%s", infilename);
340                 crash();
341         }
342 }
343
344 /* valid tirpc nettypes */
345 static const char *valid_ti_nettypes[] =
346 {
347         "netpath",
348         "visible",
349         "circuit_v",
350         "datagram_v",
351         "circuit_n",
352         "datagram_n",
353         "udp",
354         "tcp",
355         "raw",
356         NULL
357         };
358
359 /* valid inetd nettypes */
360 static const char *valid_i_nettypes[] =
361 {
362         "udp",
363         "tcp",
364         NULL
365         };
366
367 static int
368 check_nettype(const char *name, const char *list_to_check[])
369 {
370         int i;
371         for (i = 0; list_to_check[i] != NULL; i++) {
372                 if (strcmp(name, list_to_check[i]) == 0) {
373                         return (1);
374                 }
375         }
376         warnx("illegal nettype :\'%s\'", name);
377         return (0);
378 }
379
380 static const char *
381 file_name(const char *file, const char *ext)
382 {
383         char *temp;
384         temp = extendfile(file, ext);
385
386         if (access(temp, F_OK) != -1)
387                 return (temp);
388         else
389                 return (" ");
390
391 }
392
393
394 static void
395 c_output(const char *infile, const char *define, int extend, const char *outfile)
396 {
397         definition *def;
398         char *include;
399         const char *outfilename;
400         long tell;
401
402         c_initialize();
403         open_input(infile, define);
404         outfilename = extend ? extendfile(infile, outfile) : outfile;
405         open_output(infile, outfilename);
406         add_warning();
407         if (infile && (include = extendfile(infile, ".h"))) {
408                 f_print(fout, "#include \"%s\"\n", include);
409                 free(include);
410                 /* .h file already contains rpc/rpc.h */
411         } else
412                 f_print(fout, "#include <rpc/rpc.h>\n");
413         tell = ftell(fout);
414         while ( (def = get_definition()) ) {
415                 emit(def);
416         }
417         if (extend && tell == ftell(fout)) {
418                 (void) unlink(outfilename);
419         }
420 }
421
422
423 void
424 c_initialize(void)
425 {
426
427         /* add all the starting basic types */
428         add_type(1, "int");
429         add_type(1, "long");
430         add_type(1, "short");
431         add_type(1, "bool");
432         add_type(1, "u_int");
433         add_type(1, "u_long");
434         add_type(1, "u_short");
435
436 }
437
438 static const char rpcgen_table_dcl[] = "struct rpcgen_table {\n\
439         char    *(*proc)(); \n\
440         xdrproc_t       xdr_arg; \n\
441         unsigned        len_arg; \n\
442         xdrproc_t       xdr_res; \n\
443         unsigned        len_res; \n\
444 }; \n";
445
446
447 char *
448 generate_guard(const char *pathname)
449 {
450         const char *filename;
451         char *guard, *tmp, *stopat;
452
453         filename = strrchr(pathname, '/');  /* find last component */
454         filename = ((filename == 0) ? pathname : filename+1);
455         guard = xstrdup(filename);
456         stopat = strrchr(guard, '.');
457
458         /*
459          * Convert to a valid C macro name and make it upper case.
460          * Map macro unfriendly characterss to '_'.
461          */
462         for (tmp = guard; *tmp != '\000'; ++tmp) {
463                 if (islower(*tmp))
464                         *tmp = toupper(*tmp);
465                 else if (isupper(*tmp) || *tmp == '_')
466                         /* OK for C */;
467                 else if (tmp == guard)
468                         *tmp = '_';
469                 else if (isdigit(*tmp))
470                         /* OK for all but first character */;
471                 else if (tmp == stopat) {
472                         *tmp = '\0';
473                         break;
474                 } else
475                         *tmp = '_';
476         }
477         /*
478          * Can't have a '_' in front, because it'll end up being "__".
479          * "__" macros shoudln't be used. So, remove all of the
480          * '_' characters from the front.
481          */
482         if (*guard == '_') {
483                 for (tmp = guard; *tmp == '_'; ++tmp)
484                         ;
485                 strcpy(guard, tmp);
486         }
487         guard = extendfile(guard, "_H_RPCGEN");
488         return (guard);
489 }
490
491 /*
492  * Compile into an XDR header file
493  */
494
495
496 static void
497 h_output(const char *infile, const char *define, int extend, const char *outfile, int headeronly)
498 {
499         definition *def;
500         const char *outfilename;
501         long tell;
502         const char *guard;
503         list *l;
504         xdrfunc *xdrfuncp;
505
506         open_input(infile, define);
507         outfilename =  extend ? extendfile(infile, outfile) : outfile;
508         open_output(infile, outfilename);
509         add_warning();
510         if (outfilename || infile){
511                 guard = generate_guard(outfilename ? outfilename: infile);
512         } else
513                 guard = "STDIN_";
514
515         f_print(fout, "#ifndef _%s\n#define     _%s\n\n", guard,
516                 guard);
517
518         f_print(fout, "#include <rpc/rpc.h>\n");
519
520         if (mtflag)
521                 f_print(fout, "#include <pthread.h>\n");
522
523         /* put the C++ support */
524         if (!CCflag) {
525                 f_print(fout, "\n#ifdef __cplusplus\n");
526                 f_print(fout, "extern \"C\" {\n");
527                 f_print(fout, "#endif\n\n");
528         }
529
530         /* put in a typedef for quadprecision. Only with Cflag */
531
532         tell = ftell(fout);
533
534         /* print data definitions */
535         while ( (def = get_definition()) ) {
536                 print_datadef(def, headeronly);
537         }
538
539         /*
540          * print function declarations.
541          *  Do this after data definitions because they might be used as
542          *  arguments for functions
543          */
544         for (l = defined; l != NULL; l = l->next) {
545                 print_funcdef(l->val, headeronly);
546         }
547         /* Now  print all xdr func declarations */
548         if (xdrfunc_head != NULL){
549
550                 f_print(fout,
551                         "\n/* the xdr functions */\n");
552
553                 if (CCflag){
554                         f_print(fout, "\n#ifdef __cplusplus\n");
555                         f_print(fout, "extern \"C\" {\n");
556                         f_print(fout, "#endif\n");
557                 }
558
559                 xdrfuncp = xdrfunc_head;
560                 while (xdrfuncp != NULL){
561                         print_xdr_func_def(xdrfuncp->name, xdrfuncp->pointerp);
562                         xdrfuncp = xdrfuncp->next;
563                 }
564         }
565
566         if (extend && tell == ftell(fout)) {
567                 (void) unlink(outfilename);
568         } else if (tblflag) {
569                 f_print(fout, rpcgen_table_dcl);
570         }
571
572         f_print(fout, "\n#ifdef __cplusplus\n");
573         f_print(fout, "}\n");
574         f_print(fout, "#endif\n");
575
576         f_print(fout, "\n#endif /* !_%s */\n", guard);
577 }
578
579 /*
580  * Compile into an RPC service
581  */
582 static void
583 s_output(int argc, const char *argv[], const char *infile, const char *define,
584     int extend, const char *outfile, int nomain, int netflag)
585 {
586         char *include;
587         definition *def;
588         int foundprogram = 0;
589         const char *outfilename;
590
591         open_input(infile, define);
592         outfilename = extend ? extendfile(infile, outfile) : outfile;
593         open_output(infile, outfilename);
594         add_warning();
595         if (infile && (include = extendfile(infile, ".h"))) {
596                 f_print(fout, "#include \"%s\"\n", include);
597                 free(include);
598         } else
599                 f_print(fout, "#include <rpc/rpc.h>\n");
600
601         f_print(fout, "#include <stdio.h>\n");
602         f_print(fout, "#include <stdlib.h> /* getenv, exit */\n");
603         f_print (fout, "#include <rpc/pmap_clnt.h> /* for pmap_unset */\n");
604         f_print (fout, "#include <string.h> /* strcmp */\n");
605         if (tirpcflag)
606                 f_print(fout, "#include <rpc/rpc_com.h>\n");
607         if (strcmp(svcclosetime, "-1") == 0)
608                 indefinitewait = 1;
609         else if (strcmp(svcclosetime, "0") == 0)
610                 exitnow = 1;
611         else if (inetdflag || pmflag) {
612                 f_print(fout, "#include <signal.h>\n");
613                 timerflag = 1;
614         }
615
616         if (!tirpcflag && inetdflag)
617                 f_print(fout, "#include <sys/ttycom.h> /* TIOCNOTTY */\n");
618         if (inetdflag || pmflag) {
619                 f_print(fout, "#ifdef __cplusplus\n");
620                 f_print(fout,
621                         "#include <sys/sysent.h> /* getdtablesize, open */\n");
622                 f_print(fout, "#endif /* __cplusplus */\n");
623         }
624         if (tirpcflag) {
625                 f_print(fout, "#include <fcntl.h> /* open */\n");
626                 f_print(fout, "#include <unistd.h> /* fork / setsid */\n");
627                 f_print(fout, "#include <sys/types.h>\n");
628         }
629
630         f_print(fout, "#include <string.h>\n");
631         if (inetdflag || !tirpcflag) {
632                 f_print(fout, "#include <sys/socket.h>\n");
633                 f_print(fout, "#include <netinet/in.h>\n");
634         }
635
636         if ((netflag || pmflag) && tirpcflag && !nomain) {
637                 f_print(fout, "#include <netconfig.h>\n");
638         }
639         if (tirpcflag)
640                 f_print(fout, "#include <sys/resource.h> /* rlimit */\n");
641         if (logflag || inetdflag || pmflag || tirpcflag)
642                 f_print(fout, "#include <syslog.h>\n");
643
644         f_print(fout, "\n#ifdef DEBUG\n#define  RPC_SVC_FG\n#endif\n");
645         if (timerflag)
646                 f_print(fout, "\n#define        _RPCSVC_CLOSEDOWN %s\n",
647                         svcclosetime);
648         while ( (def = get_definition()) ) {
649                 foundprogram |= (def->def_kind == DEF_PROGRAM);
650         }
651         if (extend && !foundprogram) {
652                 (void) unlink(outfilename);
653                 return;
654         }
655         write_most(infile, netflag, nomain);
656         if (!nomain) {
657                 if (!do_registers(argc, argv)) {
658                         if (outfilename)
659                                 (void) unlink(outfilename);
660                         usage();
661                 }
662                 write_rest();
663         }
664 }
665
666 /*
667  * generate client side stubs
668  */
669 static void
670 l_output(const char *infile, const char *define, int extend, const char *outfile)
671 {
672         char *include;
673         definition *def;
674         int foundprogram = 0;
675         const char *outfilename;
676
677         open_input(infile, define);
678         outfilename = extend ? extendfile(infile, outfile) : outfile;
679         open_output(infile, outfilename);
680         add_warning();
681         f_print (fout, "#include <string.h> /* for memset */\n");
682         if (infile && (include = extendfile(infile, ".h"))) {
683                 f_print(fout, "#include \"%s\"\n", include);
684                 free(include);
685         } else
686                 f_print(fout, "#include <rpc/rpc.h>\n");
687         while ( (def = get_definition()) ) {
688                 foundprogram |= (def->def_kind == DEF_PROGRAM);
689         }
690         if (extend && !foundprogram) {
691                 (void) unlink(outfilename);
692                 return;
693         }
694         write_stubs();
695 }
696
697 /*
698  * generate the dispatch table
699  */
700 static void
701 t_output(const char *infile, const char *define, int extend, const char *outfile)
702 {
703         definition *def;
704         int foundprogram = 0;
705         const char *outfilename;
706
707         open_input(infile, define);
708         outfilename = extend ? extendfile(infile, outfile) : outfile;
709         open_output(infile, outfilename);
710         add_warning();
711         while ( (def = get_definition()) ) {
712                 foundprogram |= (def->def_kind == DEF_PROGRAM);
713         }
714         if (extend && !foundprogram) {
715                 (void) unlink(outfilename);
716                 return;
717         }
718         write_tables();
719 }
720
721 /* sample routine for the server template */
722 static void
723 svc_output(const char *infile, const char *define, int extend, const char *outfile)
724 {
725         definition *def;
726         char *include;
727         const char *outfilename;
728         long tell;
729         open_input(infile, define);
730         outfilename = extend ? extendfile(infile, outfile) : outfile;
731         checkfiles(infile, outfilename);
732         /*
733          * Check if outfile already exists.
734          * if so, print an error message and exit
735          */
736         open_output(infile, outfilename);
737         add_sample_msg();
738
739         if (infile && (include = extendfile(infile, ".h"))) {
740                 f_print(fout, "#include \"%s\"\n", include);
741                 free(include);
742         } else
743                 f_print(fout, "#include <rpc/rpc.h>\n");
744
745         tell = ftell(fout);
746         while ( (def = get_definition()) ) {
747                 write_sample_svc(def);
748         }
749         if (extend && tell == ftell(fout)) {
750                 (void) unlink(outfilename);
751         }
752 }
753
754 /* sample main routine for client */
755 static void
756 clnt_output(const char *infile, const char *define, int extend, const char *outfile)
757 {
758         definition *def;
759         char *include;
760         const char *outfilename;
761         long tell;
762         int has_program = 0;
763
764         open_input(infile, define);
765         outfilename = extend ? extendfile(infile, outfile) : outfile;
766         checkfiles(infile, outfilename);
767         /*
768          * Check if outfile already exists.
769          * if so, print an error message and exit
770          */
771
772         open_output(infile, outfilename);
773         add_sample_msg();
774         if (infile && (include = extendfile(infile, ".h"))) {
775                 f_print(fout, "#include \"%s\"\n", include);
776                 free(include);
777         } else
778                 f_print(fout, "#include <rpc/rpc.h>\n");
779         tell = ftell(fout);
780         while ( (def = get_definition()) ) {
781                 has_program += write_sample_clnt(def);
782         }
783
784         if (has_program)
785                 write_sample_clnt_main();
786
787         if (extend && tell == ftell(fout)) {
788                 (void) unlink(outfilename);
789         }
790 }
791
792
793 static void mkfile_output(struct commandline *cmd)
794 {
795         const char *mkfilename, *clientname, *clntname, *xdrname, *hdrname;
796         const char *servername, *svcname, *servprogname, *clntprogname;
797         char *temp, *mkftemp;
798
799         svcname = file_name(cmd->infile, "_svc.c");
800         clntname = file_name(cmd->infile, "_clnt.c");
801         xdrname = file_name(cmd->infile, "_xdr.c");
802         hdrname = file_name(cmd->infile, ".h");
803
804
805         if (allfiles){
806                 servername = extendfile(cmd->infile, "_server.c");
807                 clientname = extendfile(cmd->infile, "_client.c");
808         }else{
809                 servername = " ";
810                 clientname = " ";
811         }
812         servprogname = extendfile(cmd->infile, "_server");
813         clntprogname = extendfile(cmd->infile, "_client");
814
815         if (allfiles){
816                 mkftemp = xmalloc(strlen("makefile.") +
817                                      strlen(cmd->infile) + 1);
818                 temp = strrchr(cmd->infile, '.');
819                 strcpy(mkftemp, "makefile.");
820                 (void) strncat(mkftemp, cmd->infile,
821                         (temp - cmd->infile));
822                 mkfilename = mkftemp;
823         } else
824                 mkfilename = cmd->outfile;
825
826
827         checkfiles(NULL, mkfilename);
828         open_output(NULL, mkfilename);
829
830         f_print(fout, "\n# This is a template makefile generated\
831                 by rpcgen \n");
832
833         f_print(fout, "\n# Parameters \n\n");
834
835         f_print(fout, "CLIENT = %s\nSERVER = %s\n\n",
836                 clntprogname, servprogname);
837         f_print(fout, "SOURCES_CLNT.c = \nSOURCES_CLNT.h = \n");
838         f_print(fout, "SOURCES_SVC.c = \nSOURCES_SVC.h = \n");
839         f_print(fout, "SOURCES.x = %s\n\n", cmd->infile);
840         f_print(fout, "TARGETS_SVC.c = %s %s %s \n",
841                 svcname, servername, xdrname);
842         f_print(fout, "TARGETS_CLNT.c = %s %s %s \n",
843                 clntname, clientname, xdrname);
844         f_print(fout, "TARGETS = %s %s %s %s %s %s\n\n",
845                 hdrname, xdrname, clntname,
846                 svcname, clientname, servername);
847
848         f_print(fout, "OBJECTS_CLNT = $(SOURCES_CLNT.c:%%.c=%%.o) \
849 $(TARGETS_CLNT.c:%%.c=%%.o) ");
850
851         f_print(fout, "\nOBJECTS_SVC = $(SOURCES_SVC.c:%%.c=%%.o) \
852 $(TARGETS_SVC.c:%%.c=%%.o) ");
853
854
855         f_print(fout, "\n# Compiler flags \n");
856         if (mtflag)
857                 f_print(fout, "\nCFLAGS += -D_REENTRANT -D_THEAD_SAFE \nLDLIBS += -pthread\n");
858
859         f_print(fout, "RPCGENFLAGS = \n");
860
861         f_print(fout, "\n# Targets \n\n");
862
863         f_print(fout, "all : $(CLIENT) $(SERVER)\n\n");
864         f_print(fout, "$(TARGETS) : $(SOURCES.x) \n");
865         f_print(fout, "\trpcgen $(RPCGENFLAGS) $(SOURCES.x)\n\n");
866         f_print(fout, "$(OBJECTS_CLNT) : $(SOURCES_CLNT.c) $(SOURCES_CLNT.h) \
867 $(TARGETS_CLNT.c) \n\n");
868
869         f_print(fout, "$(OBJECTS_SVC) : $(SOURCES_SVC.c) $(SOURCES_SVC.h) \
870 $(TARGETS_SVC.c) \n\n");
871         f_print(fout, "$(CLIENT) : $(OBJECTS_CLNT) \n");
872         f_print(fout, "\t$(CC) -o $(CLIENT) $(OBJECTS_CLNT) \
873 $(LDLIBS) \n\n");
874         f_print(fout, "$(SERVER) : $(OBJECTS_SVC) \n");
875         f_print(fout, "\t$(CC) -o $(SERVER) $(OBJECTS_SVC) $(LDLIBS)\n\n");
876         f_print(fout, "clean:\n\t rm -f core $(TARGETS) $(OBJECTS_CLNT) \
877 $(OBJECTS_SVC) $(CLIENT) $(SERVER)\n\n");
878 }
879
880
881
882 /*
883  * Perform registrations for service output
884  * Return 0 if failed; 1 otherwise.
885  */
886 static int
887 do_registers(int argc, const char *argv[])
888 {
889         int i;
890
891         if (inetdflag || !tirpcflag) {
892                 for (i = 1; i < argc; i++) {
893                         if (streq(argv[i], "-s")) {
894                                 if (!check_nettype(argv[i + 1],
895                                                     valid_i_nettypes))
896                                         return (0);
897                                 write_inetd_register(argv[i + 1]);
898                                 i++;
899                         }
900                 }
901         } else {
902                 for (i = 1; i < argc; i++)
903                         if (streq(argv[i], "-s")) {
904                                 if (!check_nettype(argv[i + 1],
905                                                     valid_ti_nettypes))
906                                         return (0);
907                                 write_nettype_register(argv[i + 1]);
908                                 i++;
909                         } else if (streq(argv[i], "-n")) {
910                                 write_netid_register(argv[i + 1]);
911                                 i++;
912                         }
913         }
914         return (1);
915 }
916
917 /*
918  * Add another argument to the arg list
919  */
920 static void
921 addarg(const char *cp)
922 {
923         if (argcount >= ARGLISTLEN) {
924                 warnx("too many defines");
925                 crash();
926                 /*NOTREACHED*/
927         }
928         if (cp != NULL)
929                 arglist[argcount++] = xstrdup(cp);
930         else
931                 arglist[argcount++] = NULL;
932
933 }
934
935 /*
936  * Insert an argument at the specified location
937  */
938 static void
939 insarg(int place, const char *cp)
940 {
941         int i;
942
943         if (argcount >= ARGLISTLEN) {
944                 warnx("too many defines");
945                 crash();
946                 /*NOTREACHED*/
947         }
948
949         /* Move up existing arguments */
950         for (i = argcount - 1; i >= place; i--)
951                 arglist[i + 1] = arglist[i];
952
953         arglist[place] = xstrdup(cp);
954         argcount++;
955 }
956
957 /*
958  * if input file is stdin and an output file is specified then complain
959  * if the file already exists. Otherwise the file may get overwritten
960  * If input file does not exist, exit with an error
961  */
962
963 static void
964 checkfiles(const char *infile, const char *outfile)
965 {
966
967         struct stat buf;
968
969         if (infile)             /* infile ! = NULL */
970                 if (stat(infile, &buf) < 0)
971                 {
972                         warn("%s", infile);
973                         crash();
974                 };
975         if (outfile) {
976                 if (stat(outfile, &buf) < 0)
977                         return; /* file does not exist */
978                 else {
979                         warnx("file '%s' already exists and may be overwritten", outfile);
980                         crash();
981                 }
982         }
983 }
984
985 /*
986  * Parse command line arguments
987  */
988 static int
989 parseargs(int argc, const char *argv[], struct commandline *cmd)
990 {
991         int i;
992         int j;
993         char c, ch;
994         char flag[(1 << 8 * sizeof (char))];
995         int nflags;
996
997         cmd->infile = cmd->outfile = NULL;
998         if (argc < 2) {
999                 return (0);
1000         }
1001         allfiles = 0;
1002         flag['c'] = 0;
1003         flag['h'] = 0;
1004         flag['l'] = 0;
1005         flag['m'] = 0;
1006         flag['o'] = 0;
1007         flag['s'] = 0;
1008         flag['n'] = 0;
1009         flag['t'] = 0;
1010         flag['S'] = 0;
1011         flag['C'] = 0;
1012         flag['M'] = 0;
1013
1014         for (i = 1; i < argc; i++) {
1015                 if (argv[i][0] != '-') {
1016                         if (cmd->infile) {
1017                                 warnx("cannot specify more than one input file");
1018                                 return (0);
1019                         }
1020                         cmd->infile = argv[i];
1021                 } else {
1022                         for (j = 1; argv[i][j] != 0; j++) {
1023                                 c = argv[i][j];
1024                                 switch (c) {
1025                                 case 'a':
1026                                         allfiles = 1;
1027                                         break;
1028                                 case 'c':
1029                                 case 'h':
1030                                 case 'l':
1031                                 case 'm':
1032                                 case 't':
1033                                         if (flag[(int)c]) {
1034                                                 return (0);
1035                                         }
1036                                         flag[(int)c] = 1;
1037                                         break;
1038                                 case 'S':
1039                                         /*
1040                                          * sample flag: Ss or Sc.
1041                                          *  Ss means set flag['S'];
1042                                          *  Sc means set flag['C'];
1043                                          *  Sm means set flag['M'];
1044                                          */
1045                                         ch = argv[i][++j]; /* get next char */
1046                                         if (ch == 's')
1047                                                 ch = 'S';
1048                                         else if (ch == 'c')
1049                                                 ch = 'C';
1050                                         else if (ch == 'm')
1051                                                 ch = 'M';
1052                                         else
1053                                                 return (0);
1054
1055                                         if (flag[(int)ch]) {
1056                                                 return (0);
1057                                         }
1058                                         flag[(int)ch] = 1;
1059                                         break;
1060                                 case 'C': /* ANSI C syntax */
1061                                         ch = argv[i][j+1]; /* get next char */
1062
1063                                         if (ch != 'C')
1064                                                 break;
1065                                         CCflag = 1;
1066                                         break;
1067                                 case 'b':
1068                                         /*
1069                                          *  Turn TIRPC flag off for
1070                                          *  generating backward compatible
1071                                          *  code
1072                                          */
1073                                         tirpcflag = 0;
1074                                         break;
1075
1076                                 case 'I':
1077                                         inetdflag = 1;
1078                                         break;
1079                                 case 'N':
1080                                         newstyle = 1;
1081                                         break;
1082                                 case 'L':
1083                                         logflag = 1;
1084                                         break;
1085                                 case 'P':
1086                                         pmflag = 1;
1087                                         break;
1088                                 case 'K':
1089                                         if (++i == argc) {
1090                                                 return (0);
1091                                         }
1092                                         svcclosetime = argv[i];
1093                                         goto nextarg;
1094                                 case 'T':
1095                                         tblflag = 1;
1096                                         break;
1097                                 case 'M':
1098                                         mtflag = 1;
1099                                         break;
1100                                 case 'i' :
1101                                         if (++i == argc) {
1102                                                 return (0);
1103                                         }
1104                                         inline_size = atoi(argv[i]);
1105                                         goto nextarg;
1106                                 case 'n':
1107                                 case 'o':
1108                                 case 's':
1109                                         if (argv[i][j - 1] != '-' ||
1110                                             argv[i][j + 1] != 0) {
1111                                                 return (0);
1112                                         }
1113                                         flag[(int)c] = 1;
1114                                         if (++i == argc) {
1115                                                 return (0);
1116                                         }
1117                                         if (c == 'o') {
1118                                                 if (cmd->outfile) {
1119                                                         return (0);
1120                                                 }
1121                                                 cmd->outfile = argv[i];
1122                                         }
1123                                         goto nextarg;
1124                                 case 'D':
1125                                         if (argv[i][j - 1] != '-') {
1126                                                 return (0);
1127                                         }
1128                                         (void) addarg(argv[i]);
1129                                         goto nextarg;
1130                                 case 'Y':
1131                                         if (++i == argc) {
1132                                                 return (0);
1133                                         }
1134                                         if (strlcpy(pathbuf, argv[i],
1135                                             sizeof(pathbuf)) >= sizeof(pathbuf)
1136                                             || strlcat(pathbuf, "/cpp",
1137                                             sizeof(pathbuf)) >=
1138                                             sizeof(pathbuf)) {
1139                                                 warnx("argument too long");
1140                                                 return (0);
1141                                         }
1142                                         CPP = pathbuf;
1143                                         goto nextarg;
1144
1145
1146
1147                                 default:
1148                                         return (0);
1149                                 }
1150                         }
1151                 nextarg:
1152                         ;
1153                 }
1154         }
1155
1156         cmd->cflag = flag['c'];
1157         cmd->hflag = flag['h'];
1158         cmd->lflag = flag['l'];
1159         cmd->mflag = flag['m'];
1160         cmd->nflag = flag['n'];
1161         cmd->sflag = flag['s'];
1162         cmd->tflag = flag['t'];
1163         cmd->Ssflag = flag['S'];
1164         cmd->Scflag = flag['C'];
1165         cmd->makefileflag = flag['M'];
1166
1167         if (tirpcflag) {
1168                 if (inetdflag)
1169                         pmflag = 0;
1170                 if ((inetdflag && cmd->nflag)) {
1171                         /* netid not allowed with inetdflag */
1172                         warnx("cannot use netid flag with inetd flag");
1173                         return (0);
1174                 }
1175         } else {                /* 4.1 mode */
1176                 pmflag = 0;     /* set pmflag only in tirpcmode */
1177                 if (cmd->nflag) { /* netid needs TIRPC */
1178                         warnx("cannot use netid flag without TIRPC");
1179                         return (0);
1180                 }
1181         }
1182
1183         if (newstyle && (tblflag || cmd->tflag)) {
1184                 warnx("cannot use table flags with newstyle");
1185                 return (0);
1186         }
1187
1188         /* check no conflicts with file generation flags */
1189         nflags = cmd->cflag + cmd->hflag + cmd->lflag + cmd->mflag +
1190                 cmd->sflag + cmd->nflag + cmd->tflag + cmd->Ssflag +
1191                         cmd->Scflag + cmd->makefileflag;
1192
1193         if (nflags == 0) {
1194                 if (cmd->outfile != NULL || cmd->infile == NULL) {
1195                         return (0);
1196                 }
1197         } else if (cmd->infile == NULL &&
1198             (cmd->Ssflag || cmd->Scflag || cmd->makefileflag)) {
1199                 warnx("\"infile\" is required for template generation flags");
1200                 return (0);
1201         } if (nflags > 1) {
1202                 warnx("cannot have more than one file generation flag");
1203                 return (0);
1204         }
1205         return (1);
1206 }
1207
1208 static void
1209 usage(void)
1210 {
1211         f_print(stderr, "%s\n%s\n%s\n%s\n%s\n",
1212                 "usage: rpcgen infile",
1213                 "       rpcgen [-abCLNTM] [-Dname[=value]] [-i size]\
1214 [-I -P [-K seconds]] [-Y path] infile",
1215                 "       rpcgen [-c | -h | -l | -m | -t | -Sc | -Ss | -Sm]\
1216 [-o outfile] [infile]",
1217                 "       rpcgen [-s nettype]* [-o outfile] [infile]",
1218                 "       rpcgen [-n netid]* [-o outfile] [infile]");
1219         options_usage();
1220         exit(1);
1221 }
1222
1223 static void
1224 options_usage(void)
1225 {
1226         f_print(stderr, "options:\n");
1227         f_print(stderr, "-a\t\tgenerate all files, including samples\n");
1228         f_print(stderr, "-b\t\tbackward compatibility mode (generates code \
1229 for FreeBSD 4.X)\n");
1230         f_print(stderr, "-c\t\tgenerate XDR routines\n");
1231         f_print(stderr, "-C\t\tANSI C mode\n");
1232         f_print(stderr, "-Dname[=value]\tdefine a symbol (same as #define)\n");
1233         f_print(stderr, "-h\t\tgenerate header file\n");
1234         f_print(stderr, "-i size\t\tsize at which to start generating\
1235 inline code\n");
1236         f_print(stderr, "-I\t\tgenerate code for inetd support in server\n");
1237         f_print(stderr, "-K seconds\tserver exits after K seconds of\
1238 inactivity\n");
1239         f_print(stderr, "-l\t\tgenerate client side stubs\n");
1240         f_print(stderr, "-L\t\tserver errors will be printed to syslog\n");
1241         f_print(stderr, "-m\t\tgenerate server side stubs\n");
1242         f_print(stderr, "-M\t\tgenerate MT-safe code\n");
1243         f_print(stderr, "-n netid\tgenerate server code that supports\
1244 named netid\n");
1245         f_print(stderr, "-N\t\tsupports multiple arguments and\
1246 call-by-value\n");
1247         f_print(stderr, "-o outfile\tname of the output file\n");
1248         f_print(stderr, "-P\t\tgenerate code for port monitoring support in server\n");
1249         f_print(stderr, "-s nettype\tgenerate server code that supports named\
1250 nettype\n");
1251         f_print(stderr, "-Sc\t\tgenerate sample client code that uses remote\
1252 procedures\n");
1253         f_print(stderr, "-Ss\t\tgenerate sample server code that defines\
1254 remote procedures\n");
1255         f_print(stderr, "-Sm \t\tgenerate makefile template \n");
1256
1257         f_print(stderr, "-t\t\tgenerate RPC dispatch table\n");
1258         f_print(stderr, "-T\t\tgenerate code to support RPC dispatch tables\n");
1259         f_print(stderr, "-Y path\t\tpath where cpp is found\n");
1260         exit(1);
1261 }