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Fix the first couple of AddressSanitizer violations in usr.bin/top.
[FreeBSD/FreeBSD.git] / usr.bin / rpcgen / rpc_main.c
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 = nitems(allv);
86 static const char *allnv[] = {
87         "rpcgen", "-s", "netpath",
88 };
89 static int allnc = nitems(allnv);
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 == NULL) ? 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         tmp = guard;
488         guard = extendfile(guard, "_H_RPCGEN");
489         free(tmp);
490         return (guard);
491 }
492
493 /*
494  * Compile into an XDR header file
495  */
496
497
498 static void
499 h_output(const char *infile, const char *define, int extend, const char *outfile, int headeronly)
500 {
501         definition *def;
502         const char *outfilename;
503         long tell;
504         const char *guard;
505         list *l;
506         xdrfunc *xdrfuncp;
507         void *tmp = NULL;
508
509         open_input(infile, define);
510         outfilename =  extend ? extendfile(infile, outfile) : outfile;
511         open_output(infile, outfilename);
512         add_warning();
513         if (outfilename || infile){
514                 guard = tmp = generate_guard(outfilename ? outfilename: infile);
515         } else
516                 guard = "STDIN_";
517
518         f_print(fout, "#ifndef _%s\n#define     _%s\n\n", guard,
519                 guard);
520
521         f_print(fout, "#include <rpc/rpc.h>\n");
522
523         if (mtflag)
524                 f_print(fout, "#include <pthread.h>\n");
525
526         /* put the C++ support */
527         if (!CCflag) {
528                 f_print(fout, "\n#ifdef __cplusplus\n");
529                 f_print(fout, "extern \"C\" {\n");
530                 f_print(fout, "#endif\n\n");
531         }
532
533         /* put in a typedef for quadprecision. Only with Cflag */
534
535         tell = ftell(fout);
536
537         /* print data definitions */
538         while ( (def = get_definition()) ) {
539                 print_datadef(def, headeronly);
540         }
541
542         /*
543          * print function declarations.
544          *  Do this after data definitions because they might be used as
545          *  arguments for functions
546          */
547         for (l = defined; l != NULL; l = l->next) {
548                 print_funcdef(l->val, headeronly);
549         }
550         /* Now  print all xdr func declarations */
551         if (xdrfunc_head != NULL){
552
553                 f_print(fout,
554                         "\n/* the xdr functions */\n");
555
556                 if (CCflag){
557                         f_print(fout, "\n#ifdef __cplusplus\n");
558                         f_print(fout, "extern \"C\" {\n");
559                         f_print(fout, "#endif\n");
560                 }
561
562                 xdrfuncp = xdrfunc_head;
563                 while (xdrfuncp != NULL){
564                         print_xdr_func_def(xdrfuncp->name, xdrfuncp->pointerp);
565                         xdrfuncp = xdrfuncp->next;
566                 }
567         }
568
569         if (extend && tell == ftell(fout)) {
570                 (void) unlink(outfilename);
571         } else if (tblflag) {
572                 f_print(fout, rpcgen_table_dcl);
573         }
574
575         f_print(fout, "\n#ifdef __cplusplus\n");
576         f_print(fout, "}\n");
577         f_print(fout, "#endif\n");
578
579         f_print(fout, "\n#endif /* !_%s */\n", guard);
580         free(tmp);
581 }
582
583 /*
584  * Compile into an RPC service
585  */
586 static void
587 s_output(int argc, const char *argv[], const char *infile, const char *define,
588     int extend, const char *outfile, int nomain, int netflag)
589 {
590         char *include;
591         definition *def;
592         int foundprogram = 0;
593         const char *outfilename;
594
595         open_input(infile, define);
596         outfilename = extend ? extendfile(infile, outfile) : outfile;
597         open_output(infile, outfilename);
598         add_warning();
599         if (infile && (include = extendfile(infile, ".h"))) {
600                 f_print(fout, "#include \"%s\"\n", include);
601                 free(include);
602         } else
603                 f_print(fout, "#include <rpc/rpc.h>\n");
604
605         f_print(fout, "#include <stdio.h>\n");
606         f_print(fout, "#include <stdlib.h> /* getenv, exit */\n");
607         f_print (fout, "#include <rpc/pmap_clnt.h> /* for pmap_unset */\n");
608         f_print (fout, "#include <string.h> /* strcmp */\n");
609         if (tirpcflag)
610                 f_print(fout, "#include <rpc/rpc_com.h>\n");
611         if (strcmp(svcclosetime, "-1") == 0)
612                 indefinitewait = 1;
613         else if (strcmp(svcclosetime, "0") == 0)
614                 exitnow = 1;
615         else if (inetdflag || pmflag) {
616                 f_print(fout, "#include <signal.h>\n");
617                 timerflag = 1;
618         }
619
620         if (!tirpcflag && inetdflag)
621                 f_print(fout, "#include <sys/ttycom.h> /* TIOCNOTTY */\n");
622         if (inetdflag || pmflag) {
623                 f_print(fout, "#ifdef __cplusplus\n");
624                 f_print(fout,
625                         "#include <sys/sysent.h> /* getdtablesize, open */\n");
626                 f_print(fout, "#endif /* __cplusplus */\n");
627         }
628         if (tirpcflag) {
629                 f_print(fout, "#include <fcntl.h> /* open */\n");
630                 f_print(fout, "#include <unistd.h> /* fork / setsid */\n");
631                 f_print(fout, "#include <sys/types.h>\n");
632         }
633
634         f_print(fout, "#include <string.h>\n");
635         if (inetdflag || !tirpcflag) {
636                 f_print(fout, "#include <sys/socket.h>\n");
637                 f_print(fout, "#include <netinet/in.h>\n");
638         }
639
640         if ((netflag || pmflag) && tirpcflag && !nomain) {
641                 f_print(fout, "#include <netconfig.h>\n");
642         }
643         if (tirpcflag)
644                 f_print(fout, "#include <sys/resource.h> /* rlimit */\n");
645         if (logflag || inetdflag || pmflag || tirpcflag)
646                 f_print(fout, "#include <syslog.h>\n");
647
648         f_print(fout, "\n#ifdef DEBUG\n#define  RPC_SVC_FG\n#endif\n");
649         if (timerflag)
650                 f_print(fout, "\n#define        _RPCSVC_CLOSEDOWN %s\n",
651                         svcclosetime);
652         while ( (def = get_definition()) ) {
653                 foundprogram |= (def->def_kind == DEF_PROGRAM);
654         }
655         if (extend && !foundprogram) {
656                 (void) unlink(outfilename);
657                 return;
658         }
659         write_most(infile, netflag, nomain);
660         if (!nomain) {
661                 if (!do_registers(argc, argv)) {
662                         if (outfilename)
663                                 (void) unlink(outfilename);
664                         usage();
665                 }
666                 write_rest();
667         }
668 }
669
670 /*
671  * generate client side stubs
672  */
673 static void
674 l_output(const char *infile, const char *define, int extend, const char *outfile)
675 {
676         char *include;
677         definition *def;
678         int foundprogram = 0;
679         const char *outfilename;
680
681         open_input(infile, define);
682         outfilename = extend ? extendfile(infile, outfile) : outfile;
683         open_output(infile, outfilename);
684         add_warning();
685         f_print (fout, "#include <string.h> /* for memset */\n");
686         if (infile && (include = extendfile(infile, ".h"))) {
687                 f_print(fout, "#include \"%s\"\n", include);
688                 free(include);
689         } else
690                 f_print(fout, "#include <rpc/rpc.h>\n");
691         while ( (def = get_definition()) ) {
692                 foundprogram |= (def->def_kind == DEF_PROGRAM);
693         }
694         if (extend && !foundprogram) {
695                 (void) unlink(outfilename);
696                 return;
697         }
698         write_stubs();
699 }
700
701 /*
702  * generate the dispatch table
703  */
704 static void
705 t_output(const char *infile, const char *define, int extend, const char *outfile)
706 {
707         definition *def;
708         int foundprogram = 0;
709         const char *outfilename;
710
711         open_input(infile, define);
712         outfilename = extend ? extendfile(infile, outfile) : outfile;
713         open_output(infile, outfilename);
714         add_warning();
715         while ( (def = get_definition()) ) {
716                 foundprogram |= (def->def_kind == DEF_PROGRAM);
717         }
718         if (extend && !foundprogram) {
719                 (void) unlink(outfilename);
720                 return;
721         }
722         write_tables();
723 }
724
725 /* sample routine for the server template */
726 static void
727 svc_output(const char *infile, const char *define, int extend, const char *outfile)
728 {
729         definition *def;
730         char *include;
731         const char *outfilename;
732         long tell;
733         open_input(infile, define);
734         outfilename = extend ? extendfile(infile, outfile) : outfile;
735         checkfiles(infile, outfilename);
736         /*
737          * Check if outfile already exists.
738          * if so, print an error message and exit
739          */
740         open_output(infile, outfilename);
741         add_sample_msg();
742
743         if (infile && (include = extendfile(infile, ".h"))) {
744                 f_print(fout, "#include \"%s\"\n", include);
745                 free(include);
746         } else
747                 f_print(fout, "#include <rpc/rpc.h>\n");
748
749         tell = ftell(fout);
750         while ( (def = get_definition()) ) {
751                 write_sample_svc(def);
752         }
753         if (extend && tell == ftell(fout)) {
754                 (void) unlink(outfilename);
755         }
756 }
757
758 /* sample main routine for client */
759 static void
760 clnt_output(const char *infile, const char *define, int extend, const char *outfile)
761 {
762         definition *def;
763         char *include;
764         const char *outfilename;
765         long tell;
766         int has_program = 0;
767
768         open_input(infile, define);
769         outfilename = extend ? extendfile(infile, outfile) : outfile;
770         checkfiles(infile, outfilename);
771         /*
772          * Check if outfile already exists.
773          * if so, print an error message and exit
774          */
775
776         open_output(infile, outfilename);
777         add_sample_msg();
778         if (infile && (include = extendfile(infile, ".h"))) {
779                 f_print(fout, "#include \"%s\"\n", include);
780                 free(include);
781         } else
782                 f_print(fout, "#include <rpc/rpc.h>\n");
783         f_print(fout, "#include <stdio.h>\n");
784         f_print(fout, "#include <stdlib.h>\n");
785         tell = ftell(fout);
786         while ( (def = get_definition()) ) {
787                 has_program += write_sample_clnt(def);
788         }
789
790         if (has_program)
791                 write_sample_clnt_main();
792
793         if (extend && tell == ftell(fout)) {
794                 (void) unlink(outfilename);
795         }
796 }
797
798
799 static void mkfile_output(struct commandline *cmd)
800 {
801         const char *mkfilename, *clientname, *clntname, *xdrname, *hdrname;
802         const char *servername, *svcname, *servprogname, *clntprogname;
803         char *temp, *mkftemp;
804
805         svcname = file_name(cmd->infile, "_svc.c");
806         clntname = file_name(cmd->infile, "_clnt.c");
807         xdrname = file_name(cmd->infile, "_xdr.c");
808         hdrname = file_name(cmd->infile, ".h");
809
810
811         if (allfiles){
812                 servername = extendfile(cmd->infile, "_server.c");
813                 clientname = extendfile(cmd->infile, "_client.c");
814         }else{
815                 servername = " ";
816                 clientname = " ";
817         }
818         servprogname = extendfile(cmd->infile, "_server");
819         clntprogname = extendfile(cmd->infile, "_client");
820
821         if (allfiles){
822                 mkftemp = xmalloc(strlen("makefile.") +
823                                      strlen(cmd->infile) + 1);
824                 temp = strrchr(cmd->infile, '.');
825                 strcpy(mkftemp, "makefile.");
826                 (void) strncat(mkftemp, cmd->infile,
827                         (temp - cmd->infile));
828                 mkfilename = mkftemp;
829         } else
830                 mkfilename = cmd->outfile;
831
832
833         checkfiles(NULL, mkfilename);
834         open_output(NULL, mkfilename);
835
836         f_print(fout, "\n# This is a template makefile generated\
837                 by rpcgen \n");
838
839         f_print(fout, "\n# Parameters \n\n");
840
841         f_print(fout, "CLIENT = %s\nSERVER = %s\n\n",
842                 clntprogname, servprogname);
843         f_print(fout, "SOURCES_CLNT.c = \nSOURCES_CLNT.h = \n");
844         f_print(fout, "SOURCES_SVC.c = \nSOURCES_SVC.h = \n");
845         f_print(fout, "SOURCES.x = %s\n\n", cmd->infile);
846         f_print(fout, "TARGETS_SVC.c = %s %s %s \n",
847                 svcname, servername, xdrname);
848         f_print(fout, "TARGETS_CLNT.c = %s %s %s \n",
849                 clntname, clientname, xdrname);
850         f_print(fout, "TARGETS = %s %s %s %s %s %s\n\n",
851                 hdrname, xdrname, clntname,
852                 svcname, clientname, servername);
853
854         f_print(fout, "OBJECTS_CLNT = $(SOURCES_CLNT.c:%%.c=%%.o) \
855 $(TARGETS_CLNT.c:%%.c=%%.o) ");
856
857         f_print(fout, "\nOBJECTS_SVC = $(SOURCES_SVC.c:%%.c=%%.o) \
858 $(TARGETS_SVC.c:%%.c=%%.o) ");
859
860
861         f_print(fout, "\n# Compiler flags \n");
862         if (mtflag)
863                 f_print(fout, "\nCFLAGS += -D_REENTRANT -D_THEAD_SAFE \nLDLIBS += -pthread\n");
864
865         f_print(fout, "RPCGENFLAGS = \n");
866
867         f_print(fout, "\n# Targets \n\n");
868
869         f_print(fout, "all : $(CLIENT) $(SERVER)\n\n");
870         f_print(fout, "$(TARGETS) : $(SOURCES.x) \n");
871         f_print(fout, "\trpcgen $(RPCGENFLAGS) $(SOURCES.x)\n\n");
872         if (allfiles) {
873                 f_print(fout, "\trpcgen -Sc $(RPCGENFLAGS) $(SOURCES.x) -o %s\n\n", clientname);
874                 f_print(fout, "\trpcgen -Ss $(RPCGENFLAGS) $(SOURCES.x) -o %s\n\n", servername);
875         }
876         f_print(fout, "$(OBJECTS_CLNT) : $(SOURCES_CLNT.c) $(SOURCES_CLNT.h) \
877 $(TARGETS_CLNT.c) \n\n");
878
879         f_print(fout, "$(OBJECTS_SVC) : $(SOURCES_SVC.c) $(SOURCES_SVC.h) \
880 $(TARGETS_SVC.c) \n\n");
881         f_print(fout, "$(CLIENT) : $(OBJECTS_CLNT) \n");
882         f_print(fout, "\t$(CC) -o $(CLIENT) $(OBJECTS_CLNT) \
883 $(LDLIBS) \n\n");
884         f_print(fout, "$(SERVER) : $(OBJECTS_SVC) \n");
885         f_print(fout, "\t$(CC) -o $(SERVER) $(OBJECTS_SVC) $(LDLIBS)\n\n");
886         f_print(fout, "clean:\n\t rm -f core $(TARGETS) $(OBJECTS_CLNT) \
887 $(OBJECTS_SVC) $(CLIENT) $(SERVER)\n\n");
888 }
889
890
891
892 /*
893  * Perform registrations for service output
894  * Return 0 if failed; 1 otherwise.
895  */
896 static int
897 do_registers(int argc, const char *argv[])
898 {
899         int i;
900
901         if (inetdflag || !tirpcflag) {
902                 for (i = 1; i < argc; i++) {
903                         if (streq(argv[i], "-s")) {
904                                 if (!check_nettype(argv[i + 1],
905                                                     valid_i_nettypes))
906                                         return (0);
907                                 write_inetd_register(argv[i + 1]);
908                                 i++;
909                         }
910                 }
911         } else {
912                 for (i = 1; i < argc; i++)
913                         if (streq(argv[i], "-s")) {
914                                 if (!check_nettype(argv[i + 1],
915                                                     valid_ti_nettypes))
916                                         return (0);
917                                 write_nettype_register(argv[i + 1]);
918                                 i++;
919                         } else if (streq(argv[i], "-n")) {
920                                 write_netid_register(argv[i + 1]);
921                                 i++;
922                         }
923         }
924         return (1);
925 }
926
927 /*
928  * Add another argument to the arg list
929  */
930 static void
931 addarg(const char *cp)
932 {
933         if (argcount >= ARGLISTLEN) {
934                 warnx("too many defines");
935                 crash();
936                 /*NOTREACHED*/
937         }
938         if (cp != NULL)
939                 arglist[argcount++] = xstrdup(cp);
940         else
941                 arglist[argcount++] = NULL;
942
943 }
944
945 /*
946  * Insert an argument at the specified location
947  */
948 static void
949 insarg(int place, const char *cp)
950 {
951         int i;
952
953         if (argcount >= ARGLISTLEN) {
954                 warnx("too many defines");
955                 crash();
956                 /*NOTREACHED*/
957         }
958
959         /* Move up existing arguments */
960         for (i = argcount - 1; i >= place; i--)
961                 arglist[i + 1] = arglist[i];
962
963         arglist[place] = xstrdup(cp);
964         argcount++;
965 }
966
967 /*
968  * if input file is stdin and an output file is specified then complain
969  * if the file already exists. Otherwise the file may get overwritten
970  * If input file does not exist, exit with an error
971  */
972
973 static void
974 checkfiles(const char *infile, const char *outfile)
975 {
976
977         struct stat buf;
978
979         if (infile)             /* infile ! = NULL */
980                 if (stat(infile, &buf) < 0)
981                 {
982                         warn("%s", infile);
983                         crash();
984                 }
985         if (outfile) {
986                 if (stat(outfile, &buf) < 0)
987                         return; /* file does not exist */
988                 else {
989                         warnx("file '%s' already exists and may be overwritten", outfile);
990                         crash();
991                 }
992         }
993 }
994
995 /*
996  * Parse command line arguments
997  */
998 static int
999 parseargs(int argc, const char *argv[], struct commandline *cmd)
1000 {
1001         int i;
1002         int j;
1003         char c, ch;
1004         char flag[(1 << 8 * sizeof (char))];
1005         int nflags;
1006
1007         cmd->infile = cmd->outfile = NULL;
1008         if (argc < 2) {
1009                 return (0);
1010         }
1011         allfiles = 0;
1012         flag['c'] = 0;
1013         flag['h'] = 0;
1014         flag['l'] = 0;
1015         flag['m'] = 0;
1016         flag['o'] = 0;
1017         flag['s'] = 0;
1018         flag['n'] = 0;
1019         flag['t'] = 0;
1020         flag['S'] = 0;
1021         flag['C'] = 0;
1022         flag['M'] = 0;
1023
1024         for (i = 1; i < argc; i++) {
1025                 if (argv[i][0] != '-') {
1026                         if (cmd->infile) {
1027                                 warnx("cannot specify more than one input file");
1028                                 return (0);
1029                         }
1030                         cmd->infile = argv[i];
1031                 } else {
1032                         for (j = 1; argv[i][j] != 0; j++) {
1033                                 c = argv[i][j];
1034                                 switch (c) {
1035                                 case 'a':
1036                                         allfiles = 1;
1037                                         break;
1038                                 case 'c':
1039                                 case 'h':
1040                                 case 'l':
1041                                 case 'm':
1042                                 case 't':
1043                                         if (flag[(int)c]) {
1044                                                 return (0);
1045                                         }
1046                                         flag[(int)c] = 1;
1047                                         break;
1048                                 case 'S':
1049                                         /*
1050                                          * sample flag: Ss or Sc.
1051                                          *  Ss means set flag['S'];
1052                                          *  Sc means set flag['C'];
1053                                          *  Sm means set flag['M'];
1054                                          */
1055                                         ch = argv[i][++j]; /* get next char */
1056                                         if (ch == 's')
1057                                                 ch = 'S';
1058                                         else if (ch == 'c')
1059                                                 ch = 'C';
1060                                         else if (ch == 'm')
1061                                                 ch = 'M';
1062                                         else
1063                                                 return (0);
1064
1065                                         if (flag[(int)ch]) {
1066                                                 return (0);
1067                                         }
1068                                         flag[(int)ch] = 1;
1069                                         break;
1070                                 case 'C': /* ANSI C syntax */
1071                                         ch = argv[i][j+1]; /* get next char */
1072
1073                                         if (ch != 'C')
1074                                                 break;
1075                                         CCflag = 1;
1076                                         break;
1077                                 case 'b':
1078                                         /*
1079                                          *  Turn TIRPC flag off for
1080                                          *  generating backward compatible
1081                                          *  code
1082                                          */
1083                                         tirpcflag = 0;
1084                                         break;
1085
1086                                 case 'I':
1087                                         inetdflag = 1;
1088                                         break;
1089                                 case 'N':
1090                                         newstyle = 1;
1091                                         break;
1092                                 case 'L':
1093                                         logflag = 1;
1094                                         break;
1095                                 case 'P':
1096                                         pmflag = 1;
1097                                         break;
1098                                 case 'K':
1099                                         if (++i == argc) {
1100                                                 return (0);
1101                                         }
1102                                         svcclosetime = argv[i];
1103                                         goto nextarg;
1104                                 case 'T':
1105                                         tblflag = 1;
1106                                         break;
1107                                 case 'M':
1108                                         mtflag = 1;
1109                                         break;
1110                                 case 'i' :
1111                                         if (++i == argc) {
1112                                                 return (0);
1113                                         }
1114                                         inline_size = atoi(argv[i]);
1115                                         goto nextarg;
1116                                 case 'n':
1117                                 case 'o':
1118                                 case 's':
1119                                         if (argv[i][j - 1] != '-' ||
1120                                             argv[i][j + 1] != 0) {
1121                                                 return (0);
1122                                         }
1123                                         flag[(int)c] = 1;
1124                                         if (++i == argc) {
1125                                                 return (0);
1126                                         }
1127                                         if (c == 'o') {
1128                                                 if (cmd->outfile) {
1129                                                         return (0);
1130                                                 }
1131                                                 cmd->outfile = argv[i];
1132                                         }
1133                                         goto nextarg;
1134                                 case 'D':
1135                                         if (argv[i][j - 1] != '-') {
1136                                                 return (0);
1137                                         }
1138                                         (void) addarg(argv[i]);
1139                                         goto nextarg;
1140                                 case 'Y':
1141                                         if (++i == argc) {
1142                                                 return (0);
1143                                         }
1144                                         if (strlcpy(pathbuf, argv[i],
1145                                             sizeof(pathbuf)) >= sizeof(pathbuf)
1146                                             || strlcat(pathbuf, "/cpp",
1147                                             sizeof(pathbuf)) >=
1148                                             sizeof(pathbuf)) {
1149                                                 warnx("argument too long");
1150                                                 return (0);
1151                                         }
1152                                         CPP = pathbuf;
1153                                         goto nextarg;
1154
1155
1156
1157                                 default:
1158                                         return (0);
1159                                 }
1160                         }
1161                 nextarg:
1162                         ;
1163                 }
1164         }
1165
1166         cmd->cflag = flag['c'];
1167         cmd->hflag = flag['h'];
1168         cmd->lflag = flag['l'];
1169         cmd->mflag = flag['m'];
1170         cmd->nflag = flag['n'];
1171         cmd->sflag = flag['s'];
1172         cmd->tflag = flag['t'];
1173         cmd->Ssflag = flag['S'];
1174         cmd->Scflag = flag['C'];
1175         cmd->makefileflag = flag['M'];
1176
1177         if (tirpcflag) {
1178                 if (inetdflag)
1179                         pmflag = 0;
1180                 if ((inetdflag && cmd->nflag)) {
1181                         /* netid not allowed with inetdflag */
1182                         warnx("cannot use netid flag with inetd flag");
1183                         return (0);
1184                 }
1185         } else {                /* 4.1 mode */
1186                 pmflag = 0;     /* set pmflag only in tirpcmode */
1187                 if (cmd->nflag) { /* netid needs TIRPC */
1188                         warnx("cannot use netid flag without TIRPC");
1189                         return (0);
1190                 }
1191         }
1192
1193         if (newstyle && (tblflag || cmd->tflag)) {
1194                 warnx("cannot use table flags with newstyle");
1195                 return (0);
1196         }
1197
1198         /* check no conflicts with file generation flags */
1199         nflags = cmd->cflag + cmd->hflag + cmd->lflag + cmd->mflag +
1200                 cmd->sflag + cmd->nflag + cmd->tflag + cmd->Ssflag +
1201                         cmd->Scflag + cmd->makefileflag;
1202
1203         if (nflags == 0) {
1204                 if (cmd->outfile != NULL || cmd->infile == NULL) {
1205                         return (0);
1206                 }
1207         } else if (cmd->infile == NULL &&
1208             (cmd->Ssflag || cmd->Scflag || cmd->makefileflag)) {
1209                 warnx("\"infile\" is required for template generation flags");
1210                 return (0);
1211         } if (nflags > 1) {
1212                 warnx("cannot have more than one file generation flag");
1213                 return (0);
1214         }
1215         return (1);
1216 }
1217
1218 static void
1219 usage(void)
1220 {
1221         f_print(stderr, "%s\n%s\n%s\n%s\n%s\n",
1222                 "usage: rpcgen infile",
1223                 "       rpcgen [-abCLNTM] [-Dname[=value]] [-i size]\
1224 [-I -P [-K seconds]] [-Y path] infile",
1225                 "       rpcgen [-c | -h | -l | -m | -t | -Sc | -Ss | -Sm]\
1226 [-o outfile] [infile]",
1227                 "       rpcgen [-s nettype]* [-o outfile] [infile]",
1228                 "       rpcgen [-n netid]* [-o outfile] [infile]");
1229         options_usage();
1230         exit(1);
1231 }
1232
1233 static void
1234 options_usage(void)
1235 {
1236         f_print(stderr, "options:\n");
1237         f_print(stderr, "-a\t\tgenerate all files, including samples\n");
1238         f_print(stderr, "-b\t\tbackward compatibility mode (generates code \
1239 for FreeBSD 4.X)\n");
1240         f_print(stderr, "-c\t\tgenerate XDR routines\n");
1241         f_print(stderr, "-C\t\tANSI C mode\n");
1242         f_print(stderr, "-Dname[=value]\tdefine a symbol (same as #define)\n");
1243         f_print(stderr, "-h\t\tgenerate header file\n");
1244         f_print(stderr, "-i size\t\tsize at which to start generating\
1245 inline code\n");
1246         f_print(stderr, "-I\t\tgenerate code for inetd support in server\n");
1247         f_print(stderr, "-K seconds\tserver exits after K seconds of\
1248 inactivity\n");
1249         f_print(stderr, "-l\t\tgenerate client side stubs\n");
1250         f_print(stderr, "-L\t\tserver errors will be printed to syslog\n");
1251         f_print(stderr, "-m\t\tgenerate server side stubs\n");
1252         f_print(stderr, "-M\t\tgenerate MT-safe code\n");
1253         f_print(stderr, "-n netid\tgenerate server code that supports\
1254 named netid\n");
1255         f_print(stderr, "-N\t\tsupports multiple arguments and\
1256 call-by-value\n");
1257         f_print(stderr, "-o outfile\tname of the output file\n");
1258         f_print(stderr, "-P\t\tgenerate code for port monitoring support in server\n");
1259         f_print(stderr, "-s nettype\tgenerate server code that supports named\
1260 nettype\n");
1261         f_print(stderr, "-Sc\t\tgenerate sample client code that uses remote\
1262 procedures\n");
1263         f_print(stderr, "-Ss\t\tgenerate sample server code that defines\
1264 remote procedures\n");
1265         f_print(stderr, "-Sm \t\tgenerate makefile template \n");
1266
1267         f_print(stderr, "-t\t\tgenerate RPC dispatch table\n");
1268         f_print(stderr, "-T\t\tgenerate code to support RPC dispatch tables\n");
1269         f_print(stderr, "-Y path\t\tpath where cpp is found\n");
1270         exit(1);
1271 }