Annotation of src/usr.bin/rpcgen/rpc_hout.c, Revision 1.21
1.21 ! deraadt 1: /* $OpenBSD: rpc_hout.c,v 1.20 2011/04/06 11:36:26 miod Exp $ */
1.1 deraadt 2: /* $NetBSD: rpc_hout.c,v 1.4 1995/06/11 21:49:55 pk Exp $ */
1.19 millert 3:
1.1 deraadt 4: /*
1.19 millert 5: * Copyright (c) 2010, Oracle America, Inc.
1.1 deraadt 6: *
1.19 millert 7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions are
9: * met:
1.1 deraadt 10: *
1.19 millert 11: * * Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * * Redistributions in binary form must reproduce the above
14: * copyright notice, this list of conditions and the following
15: * disclaimer in the documentation and/or other materials
16: * provided with the distribution.
17: * * Neither the name of the "Oracle America, Inc." nor the names of its
18: * contributors may be used to endorse or promote products derived
19: * from this software without specific prior written permission.
1.1 deraadt 20: *
1.19 millert 21: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23: * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24: * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25: * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
26: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
28: * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
30: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
31: * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
32: * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.1 deraadt 33: */
34:
35: /*
1.9 deraadt 36: * rpc_hout.c, Header file outputter for the RPC protocol compiler
1.1 deraadt 37: */
38: #include <stdio.h>
1.15 david 39: #include <stdlib.h>
1.1 deraadt 40: #include <ctype.h>
41: #include "rpc_parse.h"
42: #include "rpc_util.h"
43:
1.10 millert 44: static void pconstdef(definition *);
45: static void pargdef(definition *);
46: static void pstructdef(definition *);
47: static void puniondef(definition *);
48: static void pprogramdef(definition *);
49: static void penumdef(definition *);
50: static void ptypedef(definition *);
51: static void pdefine(char *, char *);
52: static void puldefine(char *, char *);
53: static int define_printed(proc_list *, version_list *);
54: static int undefined2(char *, char *);
55: static void parglist(proc_list *, char *);
1.9 deraadt 56: void pxdrfuncdecl(char *, int);
57: void pprocdef(proc_list *, version_list *, char *, int, int);
58: void pdeclaration(char *, declaration *, int, char *);
1.1 deraadt 59:
60: /*
1.9 deraadt 61: * Print the C-version of an xdr definition
1.1 deraadt 62: */
63: void
64: print_datadef(def)
65: definition *def;
66: {
67:
1.9 deraadt 68: if (def->def_kind == DEF_PROGRAM) /* handle data only */
1.12 deraadt 69: return;
1.1 deraadt 70:
1.9 deraadt 71: if (def->def_kind != DEF_CONST)
1.11 deraadt 72: fprintf(fout, "\n");
1.1 deraadt 73: switch (def->def_kind) {
74: case DEF_STRUCT:
75: pstructdef(def);
76: break;
77: case DEF_UNION:
78: puniondef(def);
79: break;
80: case DEF_ENUM:
81: penumdef(def);
82: break;
83: case DEF_TYPEDEF:
84: ptypedef(def);
85: break;
86: case DEF_PROGRAM:
87: pprogramdef(def);
88: break;
89: case DEF_CONST:
90: pconstdef(def);
91: break;
92: }
93: if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) {
1.12 deraadt 94: pxdrfuncdecl(def->def_name,
1.9 deraadt 95: def->def_kind != DEF_TYPEDEF ||
96: !isvectordef(def->def.ty.old_type, def->def.ty.rel));
1.1 deraadt 97: }
98: }
99:
100:
101: void
102: print_funcdef(def)
103: definition *def;
104: {
105: switch (def->def_kind) {
106: case DEF_PROGRAM:
1.11 deraadt 107: fprintf(fout, "\n");
1.1 deraadt 108: pprogramdef(def);
109: break;
1.9 deraadt 110: }
1.1 deraadt 111: }
112:
1.9 deraadt 113: void
114: pxdrfuncdecl(name, pointerp)
115: char *name;
116: int pointerp;
1.1 deraadt 117: {
118:
1.11 deraadt 119: fprintf(fout,"#ifdef __cplusplus\n");
1.14 deraadt 120: fprintf(fout, "extern \"C\" bool_t xdr_%s(XDR *, %s %s);\n",
1.9 deraadt 121: name, name, pointerp ? ("*") : "");
1.11 deraadt 122: fprintf(fout,"#elif defined(__STDC__)\n");
1.14 deraadt 123: fprintf(fout, "extern bool_t xdr_%s(XDR *, %s %s);\n",
1.9 deraadt 124: name, name, pointerp ? ("*") : "");
1.11 deraadt 125: fprintf(fout,"#else /* Old Style C */\n");
126: fprintf(fout, "bool_t xdr_%s();\n", name);
127: fprintf(fout,"#endif /* Old Style C */\n\n");
1.1 deraadt 128: }
129:
130:
1.9 deraadt 131: static void
1.1 deraadt 132: pconstdef(def)
133: definition *def;
134: {
135: pdefine(def->def_name, def->def.co);
136: }
137:
1.12 deraadt 138: /*
139: * print out the definitions for the arguments of functions in the
140: * header file
141: */
1.9 deraadt 142: static void
1.1 deraadt 143: pargdef(def)
144: definition *def;
145: {
146: decl_list *l;
147: version_list *vers;
148: char *name;
149: proc_list *plist;
150:
151: for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
1.12 deraadt 152: for (plist = vers->procs; plist != NULL;
1.9 deraadt 153: plist = plist->next) {
154: if (!newstyle || plist->arg_num < 2) {
155: continue; /* old style or single args */
156: }
157: name = plist->args.argname;
1.11 deraadt 158: fprintf(fout, "struct %s {\n", name);
1.9 deraadt 159: for (l = plist->args.decls;
1.12 deraadt 160: l != NULL; l = l->next) {
1.9 deraadt 161: pdeclaration(name, &l->decl, 1, ";\n");
1.1 deraadt 162: }
1.11 deraadt 163: fprintf(fout, "};\n");
164: fprintf(fout, "typedef struct %s %s;\n", name, name);
1.20 miod 165: pxdrfuncdecl(name, 0);
1.11 deraadt 166: fprintf(fout, "\n");
1.1 deraadt 167: }
1.9 deraadt 168: }
1.1 deraadt 169: }
170:
1.9 deraadt 171: static void
1.1 deraadt 172: pstructdef(def)
173: definition *def;
174: {
1.9 deraadt 175: char *name = def->def_name;
1.8 deraadt 176: decl_list *l;
1.1 deraadt 177:
1.11 deraadt 178: fprintf(fout, "struct %s {\n", name);
1.9 deraadt 179: for (l = def->def.st.decls; l != NULL; l = l->next)
1.1 deraadt 180: pdeclaration(name, &l->decl, 1, ";\n");
1.11 deraadt 181: fprintf(fout, "};\n");
182: fprintf(fout, "typedef struct %s %s;\n", name, name);
1.1 deraadt 183: }
184:
1.9 deraadt 185: static void
1.1 deraadt 186: puniondef(def)
187: definition *def;
188: {
189: case_list *l;
190: char *name = def->def_name;
191: declaration *decl;
192:
1.11 deraadt 193: fprintf(fout, "struct %s {\n", name);
1.1 deraadt 194: decl = &def->def.un.enum_decl;
195: if (streq(decl->type, "bool")) {
1.11 deraadt 196: fprintf(fout, "\tbool_t %s;\n", decl->name);
1.1 deraadt 197: } else {
1.11 deraadt 198: fprintf(fout, "\t%s %s;\n", decl->type, decl->name);
1.1 deraadt 199: }
1.11 deraadt 200: fprintf(fout, "\tunion {\n");
1.1 deraadt 201: for (l = def->def.un.cases; l != NULL; l = l->next) {
1.9 deraadt 202: if (l->contflag == 0)
203: pdeclaration(name, &l->case_decl, 2, ";\n");
1.1 deraadt 204: }
205: decl = def->def.un.default_decl;
206: if (decl && !streq(decl->type, "void")) {
1.9 deraadt 207: pdeclaration(name, decl, 2, ";\n");
1.1 deraadt 208: }
1.11 deraadt 209: fprintf(fout, "\t} %s_u;\n", name);
210: fprintf(fout, "};\n");
211: fprintf(fout, "typedef struct %s %s;\n", name, name);
1.1 deraadt 212: }
213:
1.9 deraadt 214: static void
1.1 deraadt 215: pdefine(name, num)
216: char *name;
217: char *num;
218: {
1.11 deraadt 219: fprintf(fout, "#define %s %s\n", name, num);
1.1 deraadt 220: }
221:
1.9 deraadt 222: static void
1.1 deraadt 223: puldefine(name, num)
224: char *name;
225: char *num;
226: {
1.11 deraadt 227: fprintf(fout, "#define %s ((u_long)%s)\n", name, num);
1.1 deraadt 228: }
229:
1.9 deraadt 230: static int
1.1 deraadt 231: define_printed(stop, start)
232: proc_list *stop;
233: version_list *start;
234: {
235: version_list *vers;
236: proc_list *proc;
237:
238: for (vers = start; vers != NULL; vers = vers->next) {
239: for (proc = vers->procs; proc != NULL; proc = proc->next) {
240: if (proc == stop) {
241: return (0);
242: } else if (streq(proc->proc_name, stop->proc_name)) {
243: return (1);
244: }
245: }
246: }
247: abort();
248: /* NOTREACHED */
249: }
250:
1.9 deraadt 251: static void
1.1 deraadt 252: pprogramdef(def)
253: definition *def;
254: {
255: version_list *vers;
256: proc_list *proc;
257: int i;
258: char *ext;
1.9 deraadt 259:
1.1 deraadt 260: pargdef(def);
261:
262: puldefine(def->def_name, def->def.pr.prog_num);
263: for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
264: if (tblflag) {
1.11 deraadt 265: fprintf(fout, "extern struct rpcgen_table %s_%s_table[];\n",
1.9 deraadt 266: locase(def->def_name), vers->vers_num);
1.11 deraadt 267: fprintf(fout, "extern %s_%s_nproc;\n",
1.9 deraadt 268: locase(def->def_name), vers->vers_num);
1.1 deraadt 269: }
270: puldefine(vers->vers_name, vers->vers_num);
271:
1.9 deraadt 272: /*
273: * Print out 3 definitions, one for ANSI-C, another for C++,
274: * a third for old style C
1.1 deraadt 275: */
1.12 deraadt 276: for (i=0; i<3; i++) {
1.9 deraadt 277: if (i==0) {
1.11 deraadt 278: fprintf(fout,"\n#ifdef __cplusplus\n");
1.9 deraadt 279: ext = "extern \"C\" ";
280: } else if (i==1) {
1.11 deraadt 281: fprintf(fout,"\n#elif defined(__STDC__)\n");
1.13 deraadt 282: ext = "extern ";
1.9 deraadt 283: } else {
1.11 deraadt 284: fprintf(fout,"\n#else /* Old Style C */\n");
1.13 deraadt 285: ext = "extern ";
1.1 deraadt 286: }
1.9 deraadt 287:
1.1 deraadt 288: for (proc = vers->procs; proc != NULL; proc = proc->next) {
1.9 deraadt 289: if (!define_printed(proc, def->def.pr.versions))
1.1 deraadt 290: puldefine(proc->proc_name, proc->proc_num);
1.11 deraadt 291: fprintf(fout,"%s",ext);
1.1 deraadt 292: pprocdef(proc, vers, "CLIENT *", 0,i);
1.11 deraadt 293: fprintf(fout,"%s",ext);
1.1 deraadt 294: pprocdef(proc, vers, "struct svc_req *", 1,i);
295: }
296: }
1.11 deraadt 297: fprintf(fout,"#endif /* Old Style C */\n");
1.1 deraadt 298: }
299: }
300:
1.9 deraadt 301: void
1.1 deraadt 302: pprocdef(proc, vp, addargtype, server_p,mode)
303: proc_list *proc;
304: version_list *vp;
1.9 deraadt 305: char *addargtype;
1.1 deraadt 306: int server_p;
307: int mode;
308: {
309:
1.9 deraadt 310: ptype(proc->res_prefix, proc->res_type, 1);
1.11 deraadt 311: fprintf(fout, "* ");
1.9 deraadt 312: if (server_p)
1.1 deraadt 313: pvname_svc(proc->proc_name, vp->vers_num);
314: else
315: pvname(proc->proc_name, vp->vers_num);
316:
317: /*
1.9 deraadt 318: * mode 0 == cplusplus, mode 1 = ANSI-C, mode 2 = old style C
1.1 deraadt 319: */
1.9 deraadt 320: if (mode == 0 || mode == 1)
321: parglist(proc, addargtype);
1.1 deraadt 322: else
1.11 deraadt 323: fprintf(fout, "();\n");
1.1 deraadt 324: }
325:
326: /* print out argument list of procedure */
1.9 deraadt 327: static void
1.1 deraadt 328: parglist(proc, addargtype)
329: proc_list *proc;
1.9 deraadt 330: char *addargtype;
1.1 deraadt 331: {
332: decl_list *dl;
333:
1.11 deraadt 334: fprintf(fout,"(");
1.1 deraadt 335:
1.9 deraadt 336: if (proc->arg_num < 2 && newstyle &&
337: streq(proc->args.decls->decl.type, "void")) {
1.1 deraadt 338: /* 0 argument in new style: do nothing */
339: } else {
340: for (dl = proc->args.decls; dl != NULL; dl = dl->next) {
1.9 deraadt 341: ptype(dl->decl.prefix, dl->decl.type, 1);
342: if (!newstyle)
1.11 deraadt 343: fprintf(fout, "*"); /* old style passes by reference */
344: fprintf(fout, ", ");
1.1 deraadt 345: }
346: }
1.11 deraadt 347: fprintf(fout, "%s);\n", addargtype);
1.1 deraadt 348: }
349:
1.9 deraadt 350: static void
1.1 deraadt 351: penumdef(def)
352: definition *def;
353: {
354: char *name = def->def_name;
355: enumval_list *l;
356: char *last = NULL;
357: int count = 0;
358:
1.11 deraadt 359: fprintf(fout, "enum %s {\n", name);
1.1 deraadt 360: for (l = def->def.en.vals; l != NULL; l = l->next) {
1.11 deraadt 361: fprintf(fout, "\t%s", l->name);
1.1 deraadt 362: if (l->assignment) {
1.11 deraadt 363: fprintf(fout, " = %s", l->assignment);
1.1 deraadt 364: last = l->assignment;
365: count = 1;
366: } else {
367: if (last == NULL) {
1.11 deraadt 368: fprintf(fout, " = %d", count++);
1.1 deraadt 369: } else {
1.11 deraadt 370: fprintf(fout, " = %s + %d", last, count++);
1.1 deraadt 371: }
372: }
1.3 tholo 373: if (l->next)
1.11 deraadt 374: fprintf(fout, ",\n");
1.3 tholo 375: else
1.11 deraadt 376: fprintf(fout, "\n");
1.1 deraadt 377: }
1.11 deraadt 378: fprintf(fout, "};\n");
379: fprintf(fout, "typedef enum %s %s;\n", name, name);
1.1 deraadt 380: }
381:
1.9 deraadt 382: static void
1.1 deraadt 383: ptypedef(def)
384: definition *def;
385: {
386: char *name = def->def_name;
387: char *old = def->def.ty.old_type;
388: char prefix[8]; /* enough to contain "struct ", including NUL */
389: relation rel = def->def.ty.rel;
390:
391: if (!streq(name, old)) {
392: if (streq(old, "string")) {
393: old = "char";
394: rel = REL_POINTER;
395: } else if (streq(old, "opaque")) {
396: old = "char";
397: } else if (streq(old, "bool")) {
398: old = "bool_t";
399: }
400: if (undefined2(old, name) && def->def.ty.old_prefix) {
1.11 deraadt 401: snprintf(prefix, sizeof prefix, "%s ", def->def.ty.old_prefix);
1.1 deraadt 402: } else {
403: prefix[0] = 0;
404: }
1.11 deraadt 405: fprintf(fout, "typedef ");
1.1 deraadt 406: switch (rel) {
407: case REL_ARRAY:
1.11 deraadt 408: fprintf(fout, "struct {\n");
409: fprintf(fout, "\tu_int %s_len;\n", name);
410: fprintf(fout, "\t%s%s *%s_val;\n", prefix, old, name);
411: fprintf(fout, "} %s", name);
1.1 deraadt 412: break;
413: case REL_POINTER:
1.11 deraadt 414: fprintf(fout, "%s%s *%s", prefix, old, name);
1.1 deraadt 415: break;
416: case REL_VECTOR:
1.11 deraadt 417: fprintf(fout, "%s%s %s[%s]", prefix, old, name,
1.1 deraadt 418: def->def.ty.array_max);
419: break;
420: case REL_ALIAS:
1.11 deraadt 421: fprintf(fout, "%s%s %s", prefix, old, name);
1.1 deraadt 422: break;
423: }
1.11 deraadt 424: fprintf(fout, ";\n");
1.1 deraadt 425: }
426: }
427:
1.9 deraadt 428: void
1.1 deraadt 429: pdeclaration(name, dec, tab, separator)
430: char *name;
431: declaration *dec;
432: int tab;
1.12 deraadt 433: char *separator;
1.1 deraadt 434: {
435: char buf[8]; /* enough to hold "struct ", include NUL */
436: char *prefix;
437: char *type;
438:
1.9 deraadt 439: if (streq(dec->type, "void"))
1.1 deraadt 440: return;
441: tabify(fout, tab);
442: if (streq(dec->type, name) && !dec->prefix) {
1.11 deraadt 443: fprintf(fout, "struct ");
1.1 deraadt 444: }
445: if (streq(dec->type, "string")) {
1.11 deraadt 446: fprintf(fout, "char *%s", dec->name);
1.1 deraadt 447: } else {
448: prefix = "";
449: if (streq(dec->type, "bool")) {
450: type = "bool_t";
451: } else if (streq(dec->type, "opaque")) {
452: type = "char";
453: } else {
454: if (dec->prefix) {
1.11 deraadt 455: snprintf(buf, sizeof buf, "%s ", dec->prefix);
1.1 deraadt 456: prefix = buf;
457: }
458: type = dec->type;
459: }
460: switch (dec->rel) {
461: case REL_ALIAS:
1.11 deraadt 462: fprintf(fout, "%s%s %s", prefix, type, dec->name);
1.1 deraadt 463: break;
464: case REL_VECTOR:
1.11 deraadt 465: fprintf(fout, "%s%s %s[%s]", prefix, type, dec->name,
1.1 deraadt 466: dec->array_max);
467: break;
468: case REL_POINTER:
1.11 deraadt 469: fprintf(fout, "%s%s *%s", prefix, type, dec->name);
1.1 deraadt 470: break;
471: case REL_ARRAY:
1.11 deraadt 472: fprintf(fout, "struct {\n");
1.1 deraadt 473: tabify(fout, tab);
1.11 deraadt 474: fprintf(fout, "\tu_int %s_len;\n", dec->name);
1.1 deraadt 475: tabify(fout, tab);
1.11 deraadt 476: fprintf(fout, "\t%s%s *%s_val;\n", prefix, type, dec->name);
1.1 deraadt 477: tabify(fout, tab);
1.11 deraadt 478: fprintf(fout, "} %s", dec->name);
1.1 deraadt 479: break;
480: }
481: }
1.16 grange 482: fprintf(fout, "%s", separator);
1.1 deraadt 483: }
484:
1.9 deraadt 485: static int
1.1 deraadt 486: undefined2(type, stop)
487: char *type;
488: char *stop;
489: {
490: list *l;
491: definition *def;
492:
493: for (l = defined; l != NULL; l = l->next) {
494: def = (definition *) l->val;
495: if (def->def_kind != DEF_PROGRAM) {
496: if (streq(def->def_name, stop)) {
497: return (1);
498: } else if (streq(def->def_name, type)) {
499: return (0);
500: }
501: }
502: }
503: return (1);
504: }
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