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Move SYSCTL_ADD_PROC() to unlocked context in if_ure to avoid lock order reversal.
[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 checkfiles(const char *, const char *);
97                                         /* check if out file already exists */
98
99 static char **arglist;
100 static int argcount = 0;
101 static int argmax = 0;
102
103 int nonfatalerrors;     /* errors */
104 int inetdflag = 0;      /* Support for inetd is disabled by default, use -I */
105 int pmflag = 0;         /* Support for port monitors is disabled by default */
106 int tirpc_socket = 1;   /* TI-RPC on socket, no TLI library */
107 int logflag;            /* Use syslog instead of fprintf for errors */
108 int tblflag;            /* Support for dispatch table file */
109 int mtflag = 0;         /* Support for MT */
110
111 #define INLINE 0
112 /* length at which to start doing an inline */
113
114 int inline_size = INLINE;
115 /*
116  * Length at which to start doing an inline. INLINE = default
117  * if 0, no xdr_inline code
118  */
119
120 int indefinitewait;     /* If started by port monitors, hang till it wants */
121 int exitnow;            /* If started by port monitors, exit after the call */
122 int timerflag;          /* TRUE if !indefinite && !exitnow */
123 int newstyle;           /* newstyle of passing arguments (by value) */
124 int CCflag = 0;         /* C++ files */
125 static int allfiles;   /* generate all files */
126 int tirpcflag = 1;    /* generating code for tirpc, by default */
127 xdrfunc *xdrfunc_head = NULL; /* xdr function list */
128 xdrfunc *xdrfunc_tail = NULL; /* xdr function list */
129 pid_t childpid;
130
131
132 int
133 main(int argc, const char *argv[])
134 {
135         struct commandline cmd;
136
137         (void) memset((char *)&cmd, 0, sizeof (struct commandline));
138         if (!parseargs(argc, argv, &cmd))
139                 usage();
140         /*
141          * Only the client and server side stubs are likely to be customized,
142          *  so in that case only, check if the outfile exists, and if so,
143          *  print an error message and exit.
144          */
145         if (cmd.Ssflag || cmd.Scflag || cmd.makefileflag) {
146                 checkfiles(cmd.infile, cmd.outfile);
147         }
148         else
149                 checkfiles(cmd.infile, NULL);
150
151         if (cmd.cflag) {
152                 c_output(cmd.infile, "-DRPC_XDR", DONT_EXTEND, cmd.outfile);
153         } else if (cmd.hflag) {
154                 h_output(cmd.infile, "-DRPC_HDR", DONT_EXTEND, cmd.outfile,
155                     cmd.hflag);
156         } else if (cmd.lflag) {
157                 l_output(cmd.infile, "-DRPC_CLNT", DONT_EXTEND, cmd.outfile);
158         } else if (cmd.sflag || cmd.mflag || (cmd.nflag)) {
159                 s_output(argc, argv, cmd.infile, "-DRPC_SVC", DONT_EXTEND,
160                         cmd.outfile, cmd.mflag, cmd.nflag);
161         } else if (cmd.tflag) {
162                 t_output(cmd.infile, "-DRPC_TBL", DONT_EXTEND, cmd.outfile);
163         } else if  (cmd.Ssflag) {
164                 svc_output(cmd.infile, "-DRPC_SERVER", DONT_EXTEND,
165                         cmd.outfile);
166         } else if (cmd.Scflag) {
167                 clnt_output(cmd.infile, "-DRPC_CLIENT", DONT_EXTEND,
168                             cmd.outfile);
169         } else if (cmd.makefileflag) {
170                 mkfile_output(&cmd);
171         } else {
172                 /* the rescans are required, since cpp may effect input */
173                 c_output(cmd.infile, "-DRPC_XDR", EXTEND, "_xdr.c");
174                 reinitialize();
175                 h_output(cmd.infile, "-DRPC_HDR", EXTEND, ".h", cmd.hflag);
176                 reinitialize();
177                 l_output(cmd.infile, "-DRPC_CLNT", EXTEND, "_clnt.c");
178                 reinitialize();
179                 if (inetdflag || !tirpcflag)
180                         s_output(allc, allv, cmd.infile, "-DRPC_SVC", EXTEND,
181                         "_svc.c", cmd.mflag, cmd.nflag);
182                 else
183                         s_output(allnc, allnv, cmd.infile, "-DRPC_SVC",
184                                 EXTEND, "_svc.c", cmd.mflag, cmd.nflag);
185                 if (tblflag) {
186                         reinitialize();
187                         t_output(cmd.infile, "-DRPC_TBL", EXTEND, "_tbl.i");
188                 }
189
190                 if (allfiles) {
191                         reinitialize();
192                         svc_output(cmd.infile, "-DRPC_SERVER", EXTEND,
193                                 "_server.c");
194                         reinitialize();
195                         clnt_output(cmd.infile, "-DRPC_CLIENT", EXTEND,
196                                 "_client.c");
197
198                 }
199                 if (allfiles || (cmd.makefileflag == 1)){
200                         reinitialize();
201                         mkfile_output(&cmd);
202                 }
203
204         }
205         exit(nonfatalerrors);
206         /* NOTREACHED */
207 }
208
209
210 /*
211  * add extension to filename
212  */
213 static char *
214 extendfile(const char *path, const char *ext)
215 {
216         char *res;
217         const char *p;
218         const char *file;
219
220         if ((file = strrchr(path, '/')) == NULL)
221                 file = path;
222         else
223                 file++;
224         res = xmalloc(strlen(file) + strlen(ext) + 1);
225         p = strrchr(file, '.');
226         if (p == NULL) {
227                 p = file + strlen(file);
228         }
229         (void) strcpy(res, file);
230         (void) strcpy(res + (p - file), ext);
231         return (res);
232 }
233
234 /*
235  * Open output file with given extension
236  */
237 static void
238 open_output(const char *infile, const char *outfile)
239 {
240
241         if (outfile == NULL) {
242                 fout = stdout;
243                 return;
244         }
245
246         if (infile != NULL && streq(outfile, infile)) {
247                 warnx("%s already exists. No output generated", infile);
248                 crash();
249         }
250         fout = fopen(outfile, "w");
251         if (fout == NULL) {
252                 warn("unable to open %s", outfile);
253                 crash();
254         }
255         record_open(outfile);
256
257         return;
258 }
259
260 static void
261 add_warning(void)
262 {
263         f_print(fout, "/*\n");
264         f_print(fout, " * Please do not edit this file.\n");
265         f_print(fout, " * It was generated using rpcgen.\n");
266         f_print(fout, " */\n\n");
267 }
268
269 /* prepend C-preprocessor and flags before arguments */
270 static void
271 prepend_cpp(void)
272 {
273         int idx = 1;
274         const char *var;
275         char *dupvar, *s, *t;
276
277         if (CPP != NULL)
278                 insarg(0, CPP);
279         else if ((var = getenv("RPCGEN_CPP")) == NULL)
280                 insarg(0, "/usr/bin/cpp");
281         else {
282                 /* Parse command line in a rudimentary way */
283                 dupvar = xstrdup(var);
284                 for (s = dupvar, idx = 0; (t = strsep(&s, " \t")) != NULL; ) {
285                         if (t[0])
286                                 insarg(idx++, t);
287                 }
288                 free(dupvar);
289         }
290
291         insarg(idx, CPPFLAGS);
292 }
293
294 /*
295  * Open input file with given define for C-preprocessor
296  */
297 static void
298 open_input(const char *infile, const char *define)
299 {
300         int pd[2];
301
302         infilename = (infile == NULL) ? "<stdin>" : infile;
303         (void) pipe(pd);
304         switch (childpid = fork()) {
305         case 0:
306                 prepend_cpp();
307                 addarg(define);
308                 if (infile)
309                         addarg(infile);
310                 addarg((char *)NULL);
311                 (void) close(1);
312                 (void) dup2(pd[1], 1);
313                 (void) close(pd[0]);
314                 execvp(arglist[0], arglist);
315                 err(1, "execvp %s", arglist[0]);
316         case -1:
317                 err(1, "fork");
318         }
319         (void) close(pd[1]);
320         fin = fdopen(pd[0], "r");
321         if (fin == NULL) {
322                 warn("%s", infilename);
323                 crash();
324         }
325 }
326
327 /* valid tirpc nettypes */
328 static const char *valid_ti_nettypes[] =
329 {
330         "netpath",
331         "visible",
332         "circuit_v",
333         "datagram_v",
334         "circuit_n",
335         "datagram_n",
336         "udp",
337         "tcp",
338         "raw",
339         NULL
340         };
341
342 /* valid inetd nettypes */
343 static const char *valid_i_nettypes[] =
344 {
345         "udp",
346         "tcp",
347         NULL
348         };
349
350 static int
351 check_nettype(const char *name, const char *list_to_check[])
352 {
353         int i;
354         for (i = 0; list_to_check[i] != NULL; i++) {
355                 if (strcmp(name, list_to_check[i]) == 0) {
356                         return (1);
357                 }
358         }
359         warnx("illegal nettype :\'%s\'", name);
360         return (0);
361 }
362
363 static const char *
364 file_name(const char *file, const char *ext)
365 {
366         char *temp;
367         temp = extendfile(file, ext);
368
369         if (access(temp, F_OK) != -1)
370                 return (temp);
371         else
372                 return (" ");
373
374 }
375
376
377 static void
378 c_output(const char *infile, const char *define, int extend, const char *outfile)
379 {
380         definition *def;
381         char *include;
382         const char *outfilename;
383         long tell;
384
385         c_initialize();
386         open_input(infile, define);
387         outfilename = extend ? extendfile(infile, outfile) : outfile;
388         open_output(infile, outfilename);
389         add_warning();
390         if (infile && (include = extendfile(infile, ".h"))) {
391                 f_print(fout, "#include \"%s\"\n", include);
392                 free(include);
393                 /* .h file already contains rpc/rpc.h */
394         } else
395                 f_print(fout, "#include <rpc/rpc.h>\n");
396         tell = ftell(fout);
397         while ( (def = get_definition()) ) {
398                 emit(def);
399         }
400         if (extend && tell == ftell(fout)) {
401                 (void) unlink(outfilename);
402         }
403 }
404
405
406 void
407 c_initialize(void)
408 {
409
410         /* add all the starting basic types */
411         add_type(1, "int");
412         add_type(1, "long");
413         add_type(1, "short");
414         add_type(1, "bool");
415         add_type(1, "u_int");
416         add_type(1, "u_long");
417         add_type(1, "u_short");
418
419 }
420
421 static const char rpcgen_table_dcl[] = "struct rpcgen_table {\n\
422         char    *(*proc)(); \n\
423         xdrproc_t       xdr_arg; \n\
424         unsigned        len_arg; \n\
425         xdrproc_t       xdr_res; \n\
426         unsigned        len_res; \n\
427 }; \n";
428
429
430 char *
431 generate_guard(const char *pathname)
432 {
433         const char *filename;
434         char *guard, *tmp, *stopat;
435
436         filename = strrchr(pathname, '/');  /* find last component */
437         filename = ((filename == NULL) ? pathname : filename+1);
438         guard = xstrdup(filename);
439         stopat = strrchr(guard, '.');
440
441         /*
442          * Convert to a valid C macro name and make it upper case.
443          * Map macro unfriendly characterss to '_'.
444          */
445         for (tmp = guard; *tmp != '\000'; ++tmp) {
446                 if (islower(*tmp))
447                         *tmp = toupper(*tmp);
448                 else if (isupper(*tmp) || *tmp == '_')
449                         /* OK for C */;
450                 else if (tmp == guard)
451                         *tmp = '_';
452                 else if (isdigit(*tmp))
453                         /* OK for all but first character */;
454                 else if (tmp == stopat) {
455                         *tmp = '\0';
456                         break;
457                 } else
458                         *tmp = '_';
459         }
460         /*
461          * Can't have a '_' in front, because it'll end up being "__".
462          * "__" macros shoudln't be used. So, remove all of the
463          * '_' characters from the front.
464          */
465         if (*guard == '_') {
466                 for (tmp = guard; *tmp == '_'; ++tmp)
467                         ;
468                 strcpy(guard, tmp);
469         }
470         tmp = guard;
471         guard = extendfile(guard, "_H_RPCGEN");
472         free(tmp);
473         return (guard);
474 }
475
476 /*
477  * Compile into an XDR header file
478  */
479
480
481 static void
482 h_output(const char *infile, const char *define, int extend, const char *outfile, int headeronly)
483 {
484         definition *def;
485         const char *outfilename;
486         long tell;
487         const char *guard;
488         list *l;
489         xdrfunc *xdrfuncp;
490         void *tmp = NULL;
491
492         open_input(infile, define);
493         outfilename =  extend ? extendfile(infile, outfile) : outfile;
494         open_output(infile, outfilename);
495         add_warning();
496         if (outfilename || infile){
497                 guard = tmp = generate_guard(outfilename ? outfilename: infile);
498         } else
499                 guard = "STDIN_";
500
501         f_print(fout, "#ifndef _%s\n#define     _%s\n\n", guard,
502                 guard);
503
504         f_print(fout, "#include <rpc/rpc.h>\n");
505
506         if (mtflag)
507                 f_print(fout, "#include <pthread.h>\n");
508
509         /* put the C++ support */
510         if (!CCflag) {
511                 f_print(fout, "\n#ifdef __cplusplus\n");
512                 f_print(fout, "extern \"C\" {\n");
513                 f_print(fout, "#endif\n\n");
514         }
515
516         /* put in a typedef for quadprecision. Only with Cflag */
517
518         tell = ftell(fout);
519
520         /* print data definitions */
521         while ( (def = get_definition()) ) {
522                 print_datadef(def, headeronly);
523         }
524
525         /*
526          * print function declarations.
527          *  Do this after data definitions because they might be used as
528          *  arguments for functions
529          */
530         for (l = defined; l != NULL; l = l->next) {
531                 print_funcdef(l->val, headeronly);
532         }
533         /* Now  print all xdr func declarations */
534         if (xdrfunc_head != NULL){
535
536                 f_print(fout,
537                         "\n/* the xdr functions */\n");
538
539                 if (CCflag){
540                         f_print(fout, "\n#ifdef __cplusplus\n");
541                         f_print(fout, "extern \"C\" {\n");
542                         f_print(fout, "#endif\n");
543                 }
544
545                 xdrfuncp = xdrfunc_head;
546                 while (xdrfuncp != NULL){
547                         print_xdr_func_def(xdrfuncp->name, xdrfuncp->pointerp);
548                         xdrfuncp = xdrfuncp->next;
549                 }
550         }
551
552         if (extend && tell == ftell(fout)) {
553                 (void) unlink(outfilename);
554         } else if (tblflag) {
555                 f_print(fout, rpcgen_table_dcl);
556         }
557
558         f_print(fout, "\n#ifdef __cplusplus\n");
559         f_print(fout, "}\n");
560         f_print(fout, "#endif\n");
561
562         f_print(fout, "\n#endif /* !_%s */\n", guard);
563         free(tmp);
564 }
565
566 /*
567  * Compile into an RPC service
568  */
569 static void
570 s_output(int argc, const char *argv[], const char *infile, const char *define,
571     int extend, const char *outfile, int nomain, int netflag)
572 {
573         char *include;
574         definition *def;
575         int foundprogram = 0;
576         const char *outfilename;
577
578         open_input(infile, define);
579         outfilename = extend ? extendfile(infile, outfile) : outfile;
580         open_output(infile, outfilename);
581         add_warning();
582         if (infile && (include = extendfile(infile, ".h"))) {
583                 f_print(fout, "#include \"%s\"\n", include);
584                 free(include);
585         } else
586                 f_print(fout, "#include <rpc/rpc.h>\n");
587
588         f_print(fout, "#include <stdio.h>\n");
589         f_print(fout, "#include <stdlib.h> /* getenv, exit */\n");
590         f_print (fout, "#include <rpc/pmap_clnt.h> /* for pmap_unset */\n");
591         f_print (fout, "#include <string.h> /* strcmp */\n");
592         if (tirpcflag)
593                 f_print(fout, "#include <rpc/rpc_com.h>\n");
594         if (strcmp(svcclosetime, "-1") == 0)
595                 indefinitewait = 1;
596         else if (strcmp(svcclosetime, "0") == 0)
597                 exitnow = 1;
598         else if (inetdflag || pmflag) {
599                 f_print(fout, "#include <signal.h>\n");
600                 timerflag = 1;
601         }
602
603         if (!tirpcflag && inetdflag)
604                 f_print(fout, "#include <sys/ttycom.h> /* TIOCNOTTY */\n");
605         if (inetdflag || pmflag) {
606                 f_print(fout, "#ifdef __cplusplus\n");
607                 f_print(fout,
608                         "#include <sys/sysent.h> /* getdtablesize, open */\n");
609                 f_print(fout, "#endif /* __cplusplus */\n");
610         }
611         if (tirpcflag) {
612                 f_print(fout, "#include <fcntl.h> /* open */\n");
613                 f_print(fout, "#include <unistd.h> /* fork / setsid */\n");
614                 f_print(fout, "#include <sys/types.h>\n");
615         }
616
617         f_print(fout, "#include <string.h>\n");
618         if (inetdflag || !tirpcflag) {
619                 f_print(fout, "#include <sys/socket.h>\n");
620                 f_print(fout, "#include <netinet/in.h>\n");
621         }
622
623         if ((netflag || pmflag) && tirpcflag && !nomain) {
624                 f_print(fout, "#include <netconfig.h>\n");
625         }
626         if (tirpcflag)
627                 f_print(fout, "#include <sys/resource.h> /* rlimit */\n");
628         if (logflag || inetdflag || pmflag || tirpcflag)
629                 f_print(fout, "#include <syslog.h>\n");
630
631         f_print(fout, "\n#ifdef DEBUG\n#define  RPC_SVC_FG\n#endif\n");
632         if (timerflag)
633                 f_print(fout, "\n#define        _RPCSVC_CLOSEDOWN %s\n",
634                         svcclosetime);
635         while ( (def = get_definition()) ) {
636                 foundprogram |= (def->def_kind == DEF_PROGRAM);
637         }
638         if (extend && !foundprogram) {
639                 (void) unlink(outfilename);
640                 return;
641         }
642         write_most(infile, netflag, nomain);
643         if (!nomain) {
644                 if (!do_registers(argc, argv)) {
645                         if (outfilename)
646                                 (void) unlink(outfilename);
647                         usage();
648                 }
649                 write_rest();
650         }
651 }
652
653 /*
654  * generate client side stubs
655  */
656 static void
657 l_output(const char *infile, const char *define, int extend, const char *outfile)
658 {
659         char *include;
660         definition *def;
661         int foundprogram = 0;
662         const char *outfilename;
663
664         open_input(infile, define);
665         outfilename = extend ? extendfile(infile, outfile) : outfile;
666         open_output(infile, outfilename);
667         add_warning();
668         f_print (fout, "#include <string.h> /* for memset */\n");
669         if (infile && (include = extendfile(infile, ".h"))) {
670                 f_print(fout, "#include \"%s\"\n", include);
671                 free(include);
672         } else
673                 f_print(fout, "#include <rpc/rpc.h>\n");
674         while ( (def = get_definition()) ) {
675                 foundprogram |= (def->def_kind == DEF_PROGRAM);
676         }
677         if (extend && !foundprogram) {
678                 (void) unlink(outfilename);
679                 return;
680         }
681         write_stubs();
682 }
683
684 /*
685  * generate the dispatch table
686  */
687 static void
688 t_output(const char *infile, const char *define, int extend, const char *outfile)
689 {
690         definition *def;
691         int foundprogram = 0;
692         const char *outfilename;
693
694         open_input(infile, define);
695         outfilename = extend ? extendfile(infile, outfile) : outfile;
696         open_output(infile, outfilename);
697         add_warning();
698         while ( (def = get_definition()) ) {
699                 foundprogram |= (def->def_kind == DEF_PROGRAM);
700         }
701         if (extend && !foundprogram) {
702                 (void) unlink(outfilename);
703                 return;
704         }
705         write_tables();
706 }
707
708 /* sample routine for the server template */
709 static void
710 svc_output(const char *infile, const char *define, int extend, const char *outfile)
711 {
712         definition *def;
713         char *include;
714         const char *outfilename;
715         long tell;
716         open_input(infile, define);
717         outfilename = extend ? extendfile(infile, outfile) : outfile;
718         checkfiles(infile, outfilename);
719         /*
720          * Check if outfile already exists.
721          * if so, print an error message and exit
722          */
723         open_output(infile, outfilename);
724         add_sample_msg();
725
726         if (infile && (include = extendfile(infile, ".h"))) {
727                 f_print(fout, "#include \"%s\"\n", include);
728                 free(include);
729         } else
730                 f_print(fout, "#include <rpc/rpc.h>\n");
731
732         tell = ftell(fout);
733         while ( (def = get_definition()) ) {
734                 write_sample_svc(def);
735         }
736         if (extend && tell == ftell(fout)) {
737                 (void) unlink(outfilename);
738         }
739 }
740
741 /* sample main routine for client */
742 static void
743 clnt_output(const char *infile, const char *define, int extend, const char *outfile)
744 {
745         definition *def;
746         char *include;
747         const char *outfilename;
748         long tell;
749         int has_program = 0;
750
751         open_input(infile, define);
752         outfilename = extend ? extendfile(infile, outfile) : outfile;
753         checkfiles(infile, outfilename);
754         /*
755          * Check if outfile already exists.
756          * if so, print an error message and exit
757          */
758
759         open_output(infile, outfilename);
760         add_sample_msg();
761         if (infile && (include = extendfile(infile, ".h"))) {
762                 f_print(fout, "#include \"%s\"\n", include);
763                 free(include);
764         } else
765                 f_print(fout, "#include <rpc/rpc.h>\n");
766         f_print(fout, "#include <stdio.h>\n");
767         f_print(fout, "#include <stdlib.h>\n");
768         tell = ftell(fout);
769         while ( (def = get_definition()) ) {
770                 has_program += write_sample_clnt(def);
771         }
772
773         if (has_program)
774                 write_sample_clnt_main();
775
776         if (extend && tell == ftell(fout)) {
777                 (void) unlink(outfilename);
778         }
779 }
780
781
782 static void mkfile_output(struct commandline *cmd)
783 {
784         const char *mkfilename, *clientname, *clntname, *xdrname, *hdrname;
785         const char *servername, *svcname, *servprogname, *clntprogname;
786         char *temp, *mkftemp;
787
788         svcname = file_name(cmd->infile, "_svc.c");
789         clntname = file_name(cmd->infile, "_clnt.c");
790         xdrname = file_name(cmd->infile, "_xdr.c");
791         hdrname = file_name(cmd->infile, ".h");
792
793
794         if (allfiles){
795                 servername = extendfile(cmd->infile, "_server.c");
796                 clientname = extendfile(cmd->infile, "_client.c");
797         }else{
798                 servername = " ";
799                 clientname = " ";
800         }
801         servprogname = extendfile(cmd->infile, "_server");
802         clntprogname = extendfile(cmd->infile, "_client");
803
804         if (allfiles){
805                 mkftemp = xmalloc(strlen("makefile.") +
806                                      strlen(cmd->infile) + 1);
807                 temp = strrchr(cmd->infile, '.');
808                 strcpy(mkftemp, "makefile.");
809                 (void) strncat(mkftemp, cmd->infile,
810                         (temp - cmd->infile));
811                 mkfilename = mkftemp;
812         } else
813                 mkfilename = cmd->outfile;
814
815
816         checkfiles(NULL, mkfilename);
817         open_output(NULL, mkfilename);
818
819         f_print(fout, "\n# This is a template makefile generated\
820                 by rpcgen \n");
821
822         f_print(fout, "\n# Parameters \n\n");
823
824         f_print(fout, "CLIENT = %s\nSERVER = %s\n\n",
825                 clntprogname, servprogname);
826         f_print(fout, "SOURCES_CLNT.c = \nSOURCES_CLNT.h = \n");
827         f_print(fout, "SOURCES_SVC.c = \nSOURCES_SVC.h = \n");
828         f_print(fout, "SOURCES.x = %s\n\n", cmd->infile);
829         f_print(fout, "TARGETS_SVC.c = %s %s %s \n",
830                 svcname, servername, xdrname);
831         f_print(fout, "TARGETS_CLNT.c = %s %s %s \n",
832                 clntname, clientname, xdrname);
833         f_print(fout, "TARGETS = %s %s %s %s %s %s\n\n",
834                 hdrname, xdrname, clntname,
835                 svcname, clientname, servername);
836
837         f_print(fout, "OBJECTS_CLNT = $(SOURCES_CLNT.c:%%.c=%%.o) \
838 $(TARGETS_CLNT.c:%%.c=%%.o) ");
839
840         f_print(fout, "\nOBJECTS_SVC = $(SOURCES_SVC.c:%%.c=%%.o) \
841 $(TARGETS_SVC.c:%%.c=%%.o) ");
842
843
844         f_print(fout, "\n# Compiler flags \n");
845         if (mtflag)
846                 f_print(fout, "\nCFLAGS += -D_REENTRANT -D_THEAD_SAFE \nLDLIBS += -pthread\n");
847
848         f_print(fout, "RPCGENFLAGS = \n");
849
850         f_print(fout, "\n# Targets \n\n");
851
852         f_print(fout, "all : $(CLIENT) $(SERVER)\n\n");
853         f_print(fout, "$(TARGETS) : $(SOURCES.x) \n");
854         f_print(fout, "\trpcgen $(RPCGENFLAGS) $(SOURCES.x)\n\n");
855         if (allfiles) {
856                 f_print(fout, "\trpcgen -Sc $(RPCGENFLAGS) $(SOURCES.x) -o %s\n\n", clientname);
857                 f_print(fout, "\trpcgen -Ss $(RPCGENFLAGS) $(SOURCES.x) -o %s\n\n", servername);
858         }
859         f_print(fout, "$(OBJECTS_CLNT) : $(SOURCES_CLNT.c) $(SOURCES_CLNT.h) \
860 $(TARGETS_CLNT.c) \n\n");
861
862         f_print(fout, "$(OBJECTS_SVC) : $(SOURCES_SVC.c) $(SOURCES_SVC.h) \
863 $(TARGETS_SVC.c) \n\n");
864         f_print(fout, "$(CLIENT) : $(OBJECTS_CLNT) \n");
865         f_print(fout, "\t$(CC) -o $(CLIENT) $(OBJECTS_CLNT) \
866 $(LDLIBS) \n\n");
867         f_print(fout, "$(SERVER) : $(OBJECTS_SVC) \n");
868         f_print(fout, "\t$(CC) -o $(SERVER) $(OBJECTS_SVC) $(LDLIBS)\n\n");
869         f_print(fout, "clean:\n\t rm -f core $(TARGETS) $(OBJECTS_CLNT) \
870 $(OBJECTS_SVC) $(CLIENT) $(SERVER)\n\n");
871 }
872
873
874
875 /*
876  * Perform registrations for service output
877  * Return 0 if failed; 1 otherwise.
878  */
879 static int
880 do_registers(int argc, const char *argv[])
881 {
882         int i;
883
884         if (inetdflag || !tirpcflag) {
885                 for (i = 1; i < argc; i++) {
886                         if (streq(argv[i], "-s")) {
887                                 if (!check_nettype(argv[i + 1],
888                                                     valid_i_nettypes))
889                                         return (0);
890                                 write_inetd_register(argv[i + 1]);
891                                 i++;
892                         }
893                 }
894         } else {
895                 for (i = 1; i < argc; i++)
896                         if (streq(argv[i], "-s")) {
897                                 if (!check_nettype(argv[i + 1],
898                                                     valid_ti_nettypes))
899                                         return (0);
900                                 write_nettype_register(argv[i + 1]);
901                                 i++;
902                         } else if (streq(argv[i], "-n")) {
903                                 write_netid_register(argv[i + 1]);
904                                 i++;
905                         }
906         }
907         return (1);
908 }
909
910 /*
911  * Extend the argument list
912  */
913 static void
914 moreargs(void)
915 {
916         char **newarglist;
917
918         argmax = argmax == 0 ? 32 : argmax << 1;
919         if (argmax > INT_MAX / 4) {
920                 warnx("refusing to allocate too many arguments");
921                 crash();
922         }
923         newarglist = realloc(arglist, argmax * sizeof(*arglist));
924         if (newarglist == NULL) {
925                 warnx("unable to allocate arglist");
926                 crash();
927         }
928         free(arglist);
929         arglist = newarglist;
930 }
931
932 /*
933  * Add another argument to the arg list
934  */
935 static void
936 addarg(const char *cp)
937 {
938         if (argcount >= argmax)
939                 moreargs();
940
941         if (cp != NULL)
942                 arglist[argcount++] = xstrdup(cp);
943         else
944                 arglist[argcount++] = NULL;
945 }
946
947 /*
948  * Insert an argument at the specified location
949  */
950 static void
951 insarg(int place, const char *cp)
952 {
953         int i;
954
955         if (argcount >= argmax)
956                 moreargs();
957
958         /* Move up existing arguments */
959         for (i = argcount - 1; i >= place; i--)
960                 arglist[i + 1] = arglist[i];
961
962         arglist[place] = xstrdup(cp);
963         argcount++;
964 }
965
966 /*
967  * if input file is stdin and an output file is specified then complain
968  * if the file already exists. Otherwise the file may get overwritten
969  * If input file does not exist, exit with an error
970  */
971
972 static void
973 checkfiles(const char *infile, const char *outfile)
974 {
975
976         struct stat buf;
977
978         if (infile)             /* infile ! = NULL */
979                 if (stat(infile, &buf) < 0)
980                 {
981                         warn("%s", infile);
982                         crash();
983                 }
984         if (outfile) {
985                 if (stat(outfile, &buf) < 0)
986                         return; /* file does not exist */
987                 else {
988                         warnx("file '%s' already exists and may be overwritten", outfile);
989                         crash();
990                 }
991         }
992 }
993
994 /*
995  * Parse command line arguments
996  */
997 static int
998 parseargs(int argc, const char *argv[], struct commandline *cmd)
999 {
1000         int i;
1001         int j;
1002         char c, ch;
1003         char flag[(1 << 8 * sizeof (char))];
1004         int nflags;
1005
1006         cmd->infile = cmd->outfile = NULL;
1007         if (argc < 2) {
1008                 return (0);
1009         }
1010         allfiles = 0;
1011         flag['c'] = 0;
1012         flag['h'] = 0;
1013         flag['l'] = 0;
1014         flag['m'] = 0;
1015         flag['o'] = 0;
1016         flag['s'] = 0;
1017         flag['n'] = 0;
1018         flag['t'] = 0;
1019         flag['S'] = 0;
1020         flag['C'] = 0;
1021         flag['M'] = 0;
1022
1023         for (i = 1; i < argc; i++) {
1024                 if (argv[i][0] != '-') {
1025                         if (cmd->infile) {
1026                                 warnx("cannot specify more than one input file");
1027                                 return (0);
1028                         }
1029                         cmd->infile = argv[i];
1030                 } else {
1031                         for (j = 1; argv[i][j] != 0; j++) {
1032                                 c = argv[i][j];
1033                                 switch (c) {
1034                                 case 'a':
1035                                         allfiles = 1;
1036                                         break;
1037                                 case 'c':
1038                                 case 'h':
1039                                 case 'l':
1040                                 case 'm':
1041                                 case 't':
1042                                         if (flag[(int)c]) {
1043                                                 return (0);
1044                                         }
1045                                         flag[(int)c] = 1;
1046                                         break;
1047                                 case 'S':
1048                                         /*
1049                                          * sample flag: Ss or Sc.
1050                                          *  Ss means set flag['S'];
1051                                          *  Sc means set flag['C'];
1052                                          *  Sm means set flag['M'];
1053                                          */
1054                                         ch = argv[i][++j]; /* get next char */
1055                                         if (ch == 's')
1056                                                 ch = 'S';
1057                                         else if (ch == 'c')
1058                                                 ch = 'C';
1059                                         else if (ch == 'm')
1060                                                 ch = 'M';
1061                                         else
1062                                                 return (0);
1063
1064                                         if (flag[(int)ch]) {
1065                                                 return (0);
1066                                         }
1067                                         flag[(int)ch] = 1;
1068                                         break;
1069                                 case 'C': /* ANSI C syntax */
1070                                         ch = argv[i][j+1]; /* get next char */
1071
1072                                         if (ch != 'C')
1073                                                 break;
1074                                         CCflag = 1;
1075                                         break;
1076                                 case 'b':
1077                                         /*
1078                                          *  Turn TIRPC flag off for
1079                                          *  generating backward compatible
1080                                          *  code
1081                                          */
1082                                         tirpcflag = 0;
1083                                         break;
1084
1085                                 case 'I':
1086                                         inetdflag = 1;
1087                                         break;
1088                                 case 'N':
1089                                         newstyle = 1;
1090                                         break;
1091                                 case 'L':
1092                                         logflag = 1;
1093                                         break;
1094                                 case 'P':
1095                                         pmflag = 1;
1096                                         break;
1097                                 case 'K':
1098                                         if (++i == argc) {
1099                                                 return (0);
1100                                         }
1101                                         svcclosetime = argv[i];
1102                                         goto nextarg;
1103                                 case 'T':
1104                                         tblflag = 1;
1105                                         break;
1106                                 case 'M':
1107                                         mtflag = 1;
1108                                         break;
1109                                 case 'i' :
1110                                         if (++i == argc) {
1111                                                 return (0);
1112                                         }
1113                                         inline_size = atoi(argv[i]);
1114                                         goto nextarg;
1115                                 case 'n':
1116                                 case 'o':
1117                                 case 's':
1118                                         if (argv[i][j - 1] != '-' ||
1119                                             argv[i][j + 1] != 0) {
1120                                                 return (0);
1121                                         }
1122                                         flag[(int)c] = 1;
1123                                         if (++i == argc) {
1124                                                 return (0);
1125                                         }
1126                                         if (c == 'o') {
1127                                                 if (cmd->outfile) {
1128                                                         return (0);
1129                                                 }
1130                                                 cmd->outfile = argv[i];
1131                                         }
1132                                         goto nextarg;
1133                                 case 'D':
1134                                         if (argv[i][j - 1] != '-') {
1135                                                 return (0);
1136                                         }
1137                                         (void) addarg(argv[i]);
1138                                         goto nextarg;
1139                                 case 'Y':
1140                                         if (++i == argc) {
1141                                                 return (0);
1142                                         }
1143                                         if (strlcpy(pathbuf, argv[i],
1144                                             sizeof(pathbuf)) >= sizeof(pathbuf)
1145                                             || strlcat(pathbuf, "/cpp",
1146                                             sizeof(pathbuf)) >=
1147                                             sizeof(pathbuf)) {
1148                                                 warnx("argument too long");
1149                                                 return (0);
1150                                         }
1151                                         CPP = pathbuf;
1152                                         goto nextarg;
1153
1154
1155
1156                                 default:
1157                                         return (0);
1158                                 }
1159                         }
1160                 nextarg:
1161                         ;
1162                 }
1163         }
1164
1165         cmd->cflag = flag['c'];
1166         cmd->hflag = flag['h'];
1167         cmd->lflag = flag['l'];
1168         cmd->mflag = flag['m'];
1169         cmd->nflag = flag['n'];
1170         cmd->sflag = flag['s'];
1171         cmd->tflag = flag['t'];
1172         cmd->Ssflag = flag['S'];
1173         cmd->Scflag = flag['C'];
1174         cmd->makefileflag = flag['M'];
1175
1176         if (tirpcflag) {
1177                 if (inetdflag)
1178                         pmflag = 0;
1179                 if ((inetdflag && cmd->nflag)) {
1180                         /* netid not allowed with inetdflag */
1181                         warnx("cannot use netid flag with inetd flag");
1182                         return (0);
1183                 }
1184         } else {                /* 4.1 mode */
1185                 pmflag = 0;     /* set pmflag only in tirpcmode */
1186                 if (cmd->nflag) { /* netid needs TIRPC */
1187                         warnx("cannot use netid flag without TIRPC");
1188                         return (0);
1189                 }
1190         }
1191
1192         if (newstyle && (tblflag || cmd->tflag)) {
1193                 warnx("cannot use table flags with newstyle");
1194                 return (0);
1195         }
1196
1197         /* check no conflicts with file generation flags */
1198         nflags = cmd->cflag + cmd->hflag + cmd->lflag + cmd->mflag +
1199                 cmd->sflag + cmd->nflag + cmd->tflag + cmd->Ssflag +
1200                         cmd->Scflag + cmd->makefileflag;
1201
1202         if (nflags == 0) {
1203                 if (cmd->outfile != NULL || cmd->infile == NULL) {
1204                         return (0);
1205                 }
1206         } else if (cmd->infile == NULL &&
1207             (cmd->Ssflag || cmd->Scflag || cmd->makefileflag)) {
1208                 warnx("\"infile\" is required for template generation flags");
1209                 return (0);
1210         } if (nflags > 1) {
1211                 warnx("cannot have more than one file generation flag");
1212                 return (0);
1213         }
1214         return (1);
1215 }
1216
1217 static void
1218 usage(void)
1219 {
1220         f_print(stderr, "%s\n%s\n%s\n%s\n%s\n",
1221                 "usage: rpcgen infile",
1222                 "       rpcgen [-abCLNTM] [-Dname[=value]] [-i size]\
1223 [-I -P [-K seconds]] [-Y path] infile",
1224                 "       rpcgen [-c | -h | -l | -m | -t | -Sc | -Ss | -Sm]\
1225 [-o outfile] [infile]",
1226                 "       rpcgen [-s nettype]* [-o outfile] [infile]",
1227                 "       rpcgen [-n netid]* [-o outfile] [infile]");
1228         options_usage();
1229         exit(1);
1230 }
1231
1232 static void
1233 options_usage(void)
1234 {
1235         f_print(stderr, "options:\n");
1236         f_print(stderr, "-a\t\tgenerate all files, including samples\n");
1237         f_print(stderr, "-b\t\tbackward compatibility mode (generates code \
1238 for FreeBSD 4.X)\n");
1239         f_print(stderr, "-c\t\tgenerate XDR routines\n");
1240         f_print(stderr, "-C\t\tANSI C mode\n");
1241         f_print(stderr, "-Dname[=value]\tdefine a symbol (same as #define)\n");
1242         f_print(stderr, "-h\t\tgenerate header file\n");
1243         f_print(stderr, "-i size\t\tsize at which to start generating\
1244 inline code\n");
1245         f_print(stderr, "-I\t\tgenerate code for inetd support in server\n");
1246         f_print(stderr, "-K seconds\tserver exits after K seconds of\
1247 inactivity\n");
1248         f_print(stderr, "-l\t\tgenerate client side stubs\n");
1249         f_print(stderr, "-L\t\tserver errors will be printed to syslog\n");
1250         f_print(stderr, "-m\t\tgenerate server side stubs\n");
1251         f_print(stderr, "-M\t\tgenerate MT-safe code\n");
1252         f_print(stderr, "-n netid\tgenerate server code that supports\
1253 named netid\n");
1254         f_print(stderr, "-N\t\tsupports multiple arguments and\
1255 call-by-value\n");
1256         f_print(stderr, "-o outfile\tname of the output file\n");
1257         f_print(stderr, "-P\t\tgenerate code for port monitoring support in server\n");
1258         f_print(stderr, "-s nettype\tgenerate server code that supports named\
1259 nettype\n");
1260         f_print(stderr, "-Sc\t\tgenerate sample client code that uses remote\
1261 procedures\n");
1262         f_print(stderr, "-Ss\t\tgenerate sample server code that defines\
1263 remote procedures\n");
1264         f_print(stderr, "-Sm \t\tgenerate makefile template \n");
1265
1266         f_print(stderr, "-t\t\tgenerate RPC dispatch table\n");
1267         f_print(stderr, "-T\t\tgenerate code to support RPC dispatch tables\n");
1268         f_print(stderr, "-Y path\t\tpath where cpp is found\n");
1269         exit(1);
1270 }