Annotation of src/usr.bin/rpcgen/rpc_hout.c, Revision 1.18
1.18 ! deraadt 1: /* $OpenBSD: rpc_hout.c,v 1.17 2007/10/03 14:35:48 weingart Exp $ */
1.1 deraadt 2: /* $NetBSD: rpc_hout.c,v 1.4 1995/06/11 21:49:55 pk Exp $ */
3: /*
4: * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
5: * unrestricted use provided that this legend is included on all tape
6: * media and as a part of the software program in whole or part. Users
7: * may copy or modify Sun RPC without charge, but are not authorized
8: * to license or distribute it to anyone else except as part of a product or
9: * program developed by the user or with the express written consent of
10: * Sun Microsystems, Inc.
11: *
12: * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
13: * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
14: * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
15: *
16: * Sun RPC is provided with no support and without any obligation on the
17: * part of Sun Microsystems, Inc. to assist in its use, correction,
18: * modification or enhancement.
19: *
20: * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
21: * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
22: * OR ANY PART THEREOF.
23: *
24: * In no event will Sun Microsystems, Inc. be liable for any lost revenue
25: * or profits or other special, indirect and consequential damages, even if
26: * Sun has been advised of the possibility of such damages.
27: *
28: * Sun Microsystems, Inc.
29: * 2550 Garcia Avenue
30: * Mountain View, California 94043
31: */
32:
33: /*
1.9 deraadt 34: * rpc_hout.c, Header file outputter for the RPC protocol compiler
1.1 deraadt 35: */
36: #include <sys/cdefs.h>
37: #include <stdio.h>
1.15 david 38: #include <stdlib.h>
1.1 deraadt 39: #include <ctype.h>
40: #include "rpc_parse.h"
41: #include "rpc_util.h"
42:
1.10 millert 43: static void pconstdef(definition *);
44: static void pargdef(definition *);
45: static void pstructdef(definition *);
46: static void puniondef(definition *);
47: static void pprogramdef(definition *);
48: static void penumdef(definition *);
49: static void ptypedef(definition *);
50: static void pdefine(char *, char *);
51: static void puldefine(char *, char *);
52: static int define_printed(proc_list *, version_list *);
53: static int undefined2(char *, char *);
54: static void parglist(proc_list *, char *);
1.9 deraadt 55: void pxdrfuncdecl(char *, int);
56: void pprocdef(proc_list *, version_list *, char *, int, int);
57: void pdeclaration(char *, declaration *, int, char *);
1.1 deraadt 58:
59: /*
1.9 deraadt 60: * Print the C-version of an xdr definition
1.1 deraadt 61: */
62: void
63: print_datadef(def)
64: definition *def;
65: {
66:
1.9 deraadt 67: if (def->def_kind == DEF_PROGRAM) /* handle data only */
1.12 deraadt 68: return;
1.1 deraadt 69:
1.9 deraadt 70: if (def->def_kind != DEF_CONST)
1.11 deraadt 71: fprintf(fout, "\n");
1.1 deraadt 72: switch (def->def_kind) {
73: case DEF_STRUCT:
74: pstructdef(def);
75: break;
76: case DEF_UNION:
77: puniondef(def);
78: break;
79: case DEF_ENUM:
80: penumdef(def);
81: break;
82: case DEF_TYPEDEF:
83: ptypedef(def);
84: break;
85: case DEF_PROGRAM:
86: pprogramdef(def);
87: break;
88: case DEF_CONST:
89: pconstdef(def);
90: break;
91: }
92: if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) {
1.12 deraadt 93: pxdrfuncdecl(def->def_name,
1.9 deraadt 94: def->def_kind != DEF_TYPEDEF ||
95: !isvectordef(def->def.ty.old_type, def->def.ty.rel));
1.1 deraadt 96: }
97: }
98:
99:
100: void
101: print_funcdef(def)
102: definition *def;
103: {
104: switch (def->def_kind) {
105: case DEF_PROGRAM:
1.11 deraadt 106: fprintf(fout, "\n");
1.1 deraadt 107: pprogramdef(def);
108: break;
1.9 deraadt 109: }
1.1 deraadt 110: }
111:
1.9 deraadt 112: void
113: pxdrfuncdecl(name, pointerp)
114: char *name;
115: int pointerp;
1.1 deraadt 116: {
117:
1.11 deraadt 118: fprintf(fout,"#ifdef __cplusplus\n");
1.14 deraadt 119: fprintf(fout, "extern \"C\" bool_t xdr_%s(XDR *, %s %s);\n",
1.9 deraadt 120: name, name, pointerp ? ("*") : "");
1.11 deraadt 121: fprintf(fout,"#elif defined(__STDC__)\n");
1.14 deraadt 122: fprintf(fout, "extern bool_t xdr_%s(XDR *, %s %s);\n",
1.9 deraadt 123: name, name, pointerp ? ("*") : "");
1.11 deraadt 124: fprintf(fout,"#else /* Old Style C */\n");
125: fprintf(fout, "bool_t xdr_%s();\n", name);
126: fprintf(fout,"#endif /* Old Style C */\n\n");
1.1 deraadt 127: }
128:
129:
1.9 deraadt 130: static void
1.1 deraadt 131: pconstdef(def)
132: definition *def;
133: {
134: pdefine(def->def_name, def->def.co);
135: }
136:
1.12 deraadt 137: /*
138: * print out the definitions for the arguments of functions in the
139: * header file
140: */
1.9 deraadt 141: static void
1.1 deraadt 142: pargdef(def)
143: definition *def;
144: {
145: decl_list *l;
146: version_list *vers;
147: char *name;
148: proc_list *plist;
149:
150: for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
1.12 deraadt 151: for (plist = vers->procs; plist != NULL;
1.9 deraadt 152: plist = plist->next) {
153: if (!newstyle || plist->arg_num < 2) {
154: continue; /* old style or single args */
155: }
156: name = plist->args.argname;
1.11 deraadt 157: fprintf(fout, "struct %s {\n", name);
1.9 deraadt 158: for (l = plist->args.decls;
1.12 deraadt 159: l != NULL; l = l->next) {
1.9 deraadt 160: pdeclaration(name, &l->decl, 1, ";\n");
1.1 deraadt 161: }
1.11 deraadt 162: fprintf(fout, "};\n");
163: fprintf(fout, "typedef struct %s %s;\n", name, name);
1.9 deraadt 164: pxdrfuncdecl(name, NULL);
1.11 deraadt 165: fprintf(fout, "\n");
1.1 deraadt 166: }
1.9 deraadt 167: }
1.1 deraadt 168: }
169:
1.9 deraadt 170: static void
1.1 deraadt 171: pstructdef(def)
172: definition *def;
173: {
1.9 deraadt 174: char *name = def->def_name;
1.8 deraadt 175: decl_list *l;
1.1 deraadt 176:
1.11 deraadt 177: fprintf(fout, "struct %s {\n", name);
1.9 deraadt 178: for (l = def->def.st.decls; l != NULL; l = l->next)
1.1 deraadt 179: pdeclaration(name, &l->decl, 1, ";\n");
1.11 deraadt 180: fprintf(fout, "};\n");
181: fprintf(fout, "typedef struct %s %s;\n", name, name);
1.1 deraadt 182: }
183:
1.9 deraadt 184: static void
1.1 deraadt 185: puniondef(def)
186: definition *def;
187: {
188: case_list *l;
189: char *name = def->def_name;
190: declaration *decl;
191:
1.11 deraadt 192: fprintf(fout, "struct %s {\n", name);
1.1 deraadt 193: decl = &def->def.un.enum_decl;
194: if (streq(decl->type, "bool")) {
1.11 deraadt 195: fprintf(fout, "\tbool_t %s;\n", decl->name);
1.1 deraadt 196: } else {
1.11 deraadt 197: fprintf(fout, "\t%s %s;\n", decl->type, decl->name);
1.1 deraadt 198: }
1.11 deraadt 199: fprintf(fout, "\tunion {\n");
1.1 deraadt 200: for (l = def->def.un.cases; l != NULL; l = l->next) {
1.9 deraadt 201: if (l->contflag == 0)
202: pdeclaration(name, &l->case_decl, 2, ";\n");
1.1 deraadt 203: }
204: decl = def->def.un.default_decl;
205: if (decl && !streq(decl->type, "void")) {
1.9 deraadt 206: pdeclaration(name, decl, 2, ";\n");
1.1 deraadt 207: }
1.11 deraadt 208: fprintf(fout, "\t} %s_u;\n", name);
209: fprintf(fout, "};\n");
210: fprintf(fout, "typedef struct %s %s;\n", name, name);
1.1 deraadt 211: }
212:
1.9 deraadt 213: static void
1.1 deraadt 214: pdefine(name, num)
215: char *name;
216: char *num;
217: {
1.11 deraadt 218: fprintf(fout, "#define %s %s\n", name, num);
1.1 deraadt 219: }
220:
1.9 deraadt 221: static void
1.1 deraadt 222: puldefine(name, num)
223: char *name;
224: char *num;
225: {
1.11 deraadt 226: fprintf(fout, "#define %s ((u_long)%s)\n", name, num);
1.1 deraadt 227: }
228:
1.9 deraadt 229: static int
1.1 deraadt 230: define_printed(stop, start)
231: proc_list *stop;
232: version_list *start;
233: {
234: version_list *vers;
235: proc_list *proc;
236:
237: for (vers = start; vers != NULL; vers = vers->next) {
238: for (proc = vers->procs; proc != NULL; proc = proc->next) {
239: if (proc == stop) {
240: return (0);
241: } else if (streq(proc->proc_name, stop->proc_name)) {
242: return (1);
243: }
244: }
245: }
246: abort();
247: /* NOTREACHED */
248: }
249:
1.9 deraadt 250: static void
1.1 deraadt 251: pprogramdef(def)
252: definition *def;
253: {
254: version_list *vers;
255: proc_list *proc;
256: int i;
257: char *ext;
1.9 deraadt 258:
1.1 deraadt 259: pargdef(def);
260:
261: puldefine(def->def_name, def->def.pr.prog_num);
262: for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
263: if (tblflag) {
1.11 deraadt 264: fprintf(fout, "extern struct rpcgen_table %s_%s_table[];\n",
1.9 deraadt 265: locase(def->def_name), vers->vers_num);
1.11 deraadt 266: fprintf(fout, "extern %s_%s_nproc;\n",
1.9 deraadt 267: locase(def->def_name), vers->vers_num);
1.1 deraadt 268: }
269: puldefine(vers->vers_name, vers->vers_num);
270:
1.9 deraadt 271: /*
272: * Print out 3 definitions, one for ANSI-C, another for C++,
273: * a third for old style C
1.1 deraadt 274: */
1.12 deraadt 275: for (i=0; i<3; i++) {
1.9 deraadt 276: if (i==0) {
1.11 deraadt 277: fprintf(fout,"\n#ifdef __cplusplus\n");
1.9 deraadt 278: ext = "extern \"C\" ";
279: } else if (i==1) {
1.11 deraadt 280: fprintf(fout,"\n#elif defined(__STDC__)\n");
1.13 deraadt 281: ext = "extern ";
1.9 deraadt 282: } else {
1.11 deraadt 283: fprintf(fout,"\n#else /* Old Style C */\n");
1.13 deraadt 284: ext = "extern ";
1.1 deraadt 285: }
1.9 deraadt 286:
1.1 deraadt 287: for (proc = vers->procs; proc != NULL; proc = proc->next) {
1.9 deraadt 288: if (!define_printed(proc, def->def.pr.versions))
1.1 deraadt 289: puldefine(proc->proc_name, proc->proc_num);
1.11 deraadt 290: fprintf(fout,"%s",ext);
1.1 deraadt 291: pprocdef(proc, vers, "CLIENT *", 0,i);
1.11 deraadt 292: fprintf(fout,"%s",ext);
1.1 deraadt 293: pprocdef(proc, vers, "struct svc_req *", 1,i);
294: }
295: }
1.11 deraadt 296: fprintf(fout,"#endif /* Old Style C */\n");
1.1 deraadt 297: }
298: }
299:
1.9 deraadt 300: void
1.1 deraadt 301: pprocdef(proc, vp, addargtype, server_p,mode)
302: proc_list *proc;
303: version_list *vp;
1.9 deraadt 304: char *addargtype;
1.1 deraadt 305: int server_p;
306: int mode;
307: {
308:
1.9 deraadt 309: ptype(proc->res_prefix, proc->res_type, 1);
1.11 deraadt 310: fprintf(fout, "* ");
1.9 deraadt 311: if (server_p)
1.1 deraadt 312: pvname_svc(proc->proc_name, vp->vers_num);
313: else
314: pvname(proc->proc_name, vp->vers_num);
315:
316: /*
1.9 deraadt 317: * mode 0 == cplusplus, mode 1 = ANSI-C, mode 2 = old style C
1.1 deraadt 318: */
1.9 deraadt 319: if (mode == 0 || mode == 1)
320: parglist(proc, addargtype);
1.1 deraadt 321: else
1.11 deraadt 322: fprintf(fout, "();\n");
1.1 deraadt 323: }
324:
325: /* print out argument list of procedure */
1.9 deraadt 326: static void
1.1 deraadt 327: parglist(proc, addargtype)
328: proc_list *proc;
1.9 deraadt 329: char *addargtype;
1.1 deraadt 330: {
331: decl_list *dl;
332:
1.11 deraadt 333: fprintf(fout,"(");
1.1 deraadt 334:
1.9 deraadt 335: if (proc->arg_num < 2 && newstyle &&
336: streq(proc->args.decls->decl.type, "void")) {
1.1 deraadt 337: /* 0 argument in new style: do nothing */
338: } else {
339: for (dl = proc->args.decls; dl != NULL; dl = dl->next) {
1.9 deraadt 340: ptype(dl->decl.prefix, dl->decl.type, 1);
341: if (!newstyle)
1.11 deraadt 342: fprintf(fout, "*"); /* old style passes by reference */
343: fprintf(fout, ", ");
1.1 deraadt 344: }
345: }
1.11 deraadt 346: fprintf(fout, "%s);\n", addargtype);
1.1 deraadt 347: }
348:
1.9 deraadt 349: static void
1.1 deraadt 350: penumdef(def)
351: definition *def;
352: {
353: char *name = def->def_name;
354: enumval_list *l;
355: char *last = NULL;
356: int count = 0;
357:
1.11 deraadt 358: fprintf(fout, "enum %s {\n", name);
1.1 deraadt 359: for (l = def->def.en.vals; l != NULL; l = l->next) {
1.11 deraadt 360: fprintf(fout, "\t%s", l->name);
1.1 deraadt 361: if (l->assignment) {
1.11 deraadt 362: fprintf(fout, " = %s", l->assignment);
1.1 deraadt 363: last = l->assignment;
364: count = 1;
365: } else {
366: if (last == NULL) {
1.11 deraadt 367: fprintf(fout, " = %d", count++);
1.1 deraadt 368: } else {
1.11 deraadt 369: fprintf(fout, " = %s + %d", last, count++);
1.1 deraadt 370: }
371: }
1.3 tholo 372: if (l->next)
1.11 deraadt 373: fprintf(fout, ",\n");
1.3 tholo 374: else
1.11 deraadt 375: fprintf(fout, "\n");
1.1 deraadt 376: }
1.11 deraadt 377: fprintf(fout, "};\n");
378: fprintf(fout, "typedef enum %s %s;\n", name, name);
1.1 deraadt 379: }
380:
1.9 deraadt 381: static void
1.1 deraadt 382: ptypedef(def)
383: definition *def;
384: {
385: char *name = def->def_name;
386: char *old = def->def.ty.old_type;
387: char prefix[8]; /* enough to contain "struct ", including NUL */
388: relation rel = def->def.ty.rel;
389:
390: if (!streq(name, old)) {
391: if (streq(old, "string")) {
392: old = "char";
393: rel = REL_POINTER;
394: } else if (streq(old, "opaque")) {
395: old = "char";
396: } else if (streq(old, "bool")) {
397: old = "bool_t";
398: }
399: if (undefined2(old, name) && def->def.ty.old_prefix) {
1.11 deraadt 400: snprintf(prefix, sizeof prefix, "%s ", def->def.ty.old_prefix);
1.1 deraadt 401: } else {
402: prefix[0] = 0;
403: }
1.11 deraadt 404: fprintf(fout, "typedef ");
1.1 deraadt 405: switch (rel) {
406: case REL_ARRAY:
1.11 deraadt 407: fprintf(fout, "struct {\n");
408: fprintf(fout, "\tu_int %s_len;\n", name);
409: fprintf(fout, "\t%s%s *%s_val;\n", prefix, old, name);
410: fprintf(fout, "} %s", name);
1.1 deraadt 411: break;
412: case REL_POINTER:
1.11 deraadt 413: fprintf(fout, "%s%s *%s", prefix, old, name);
1.1 deraadt 414: break;
415: case REL_VECTOR:
1.11 deraadt 416: fprintf(fout, "%s%s %s[%s]", prefix, old, name,
1.1 deraadt 417: def->def.ty.array_max);
418: break;
419: case REL_ALIAS:
1.11 deraadt 420: fprintf(fout, "%s%s %s", prefix, old, name);
1.1 deraadt 421: break;
422: }
1.11 deraadt 423: fprintf(fout, ";\n");
1.1 deraadt 424: }
425: }
426:
1.9 deraadt 427: void
1.1 deraadt 428: pdeclaration(name, dec, tab, separator)
429: char *name;
430: declaration *dec;
431: int tab;
1.12 deraadt 432: char *separator;
1.1 deraadt 433: {
434: char buf[8]; /* enough to hold "struct ", include NUL */
435: char *prefix;
436: char *type;
437:
1.9 deraadt 438: if (streq(dec->type, "void"))
1.1 deraadt 439: return;
440: tabify(fout, tab);
441: if (streq(dec->type, name) && !dec->prefix) {
1.11 deraadt 442: fprintf(fout, "struct ");
1.1 deraadt 443: }
444: if (streq(dec->type, "string")) {
1.11 deraadt 445: fprintf(fout, "char *%s", dec->name);
1.1 deraadt 446: } else {
447: prefix = "";
448: if (streq(dec->type, "bool")) {
449: type = "bool_t";
450: } else if (streq(dec->type, "opaque")) {
451: type = "char";
452: } else {
453: if (dec->prefix) {
1.11 deraadt 454: snprintf(buf, sizeof buf, "%s ", dec->prefix);
1.1 deraadt 455: prefix = buf;
456: }
457: type = dec->type;
458: }
459: switch (dec->rel) {
460: case REL_ALIAS:
1.11 deraadt 461: fprintf(fout, "%s%s %s", prefix, type, dec->name);
1.1 deraadt 462: break;
463: case REL_VECTOR:
1.11 deraadt 464: fprintf(fout, "%s%s %s[%s]", prefix, type, dec->name,
1.1 deraadt 465: dec->array_max);
466: break;
467: case REL_POINTER:
1.11 deraadt 468: fprintf(fout, "%s%s *%s", prefix, type, dec->name);
1.1 deraadt 469: break;
470: case REL_ARRAY:
1.11 deraadt 471: fprintf(fout, "struct {\n");
1.1 deraadt 472: tabify(fout, tab);
1.11 deraadt 473: fprintf(fout, "\tu_int %s_len;\n", dec->name);
1.1 deraadt 474: tabify(fout, tab);
1.11 deraadt 475: fprintf(fout, "\t%s%s *%s_val;\n", prefix, type, dec->name);
1.1 deraadt 476: tabify(fout, tab);
1.11 deraadt 477: fprintf(fout, "} %s", dec->name);
1.1 deraadt 478: break;
479: }
480: }
1.16 grange 481: fprintf(fout, "%s", separator);
1.1 deraadt 482: }
483:
1.9 deraadt 484: static int
1.1 deraadt 485: undefined2(type, stop)
486: char *type;
487: char *stop;
488: {
489: list *l;
490: definition *def;
491:
492: for (l = defined; l != NULL; l = l->next) {
493: def = (definition *) l->val;
494: if (def->def_kind != DEF_PROGRAM) {
495: if (streq(def->def_name, stop)) {
496: return (1);
497: } else if (streq(def->def_name, type)) {
498: return (0);
499: }
500: }
501: }
502: return (1);
503: }
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