Deleted Added
sdiff udiff text old ( 8874 ) new ( 12798 )
full compact
rpc_scan.c (8874) rpc_scan.c (12798)
1/* @(#)rpc_scan.c 2.1 88/08/01 4.0 RPCSRC */
2/*
3 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
4 * unrestricted use provided that this legend is included on all tape
5 * media and as a part of the software program in whole or part. Users
6 * may copy or modify Sun RPC without charge, but are not authorized
7 * to license or distribute it to anyone else except as part of a product or
8 * program developed by the user.
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.
9 *
8 *
10 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
11 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
12 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
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.
13 *
12 *
14 * Sun RPC is provided with no support and without any obligation on the
15 * part of Sun Microsystems, Inc. to assist in its use, correction,
16 * modification or enhancement.
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.
17 *
16 *
18 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
19 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
20 * OR ANY PART THEREOF.
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.
21 *
20 *
22 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
23 * or profits or other special, indirect and consequential damages, even if
24 * Sun has been advised of the possibility of such damages.
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.
25 *
24 *
26 * Sun Microsystems, Inc.
27 * 2550 Garcia Avenue
28 * Mountain View, California 94043
29 */
25 * Sun Microsystems, Inc.
26 * 2550 Garcia Avenue
27 * Mountain View, California 94043
28 */
29
30#ident "@(#)rpc_scan.c 1.13 93/07/05 SMI"
31
30#ifndef lint
32#ifndef lint
31/*static char sccsid[] = "from: @(#)rpc_scan.c 1.6 87/06/24 (C) 1987 SMI";*/
32static char rcsid[] = "$Id: rpc_scan.c,v 1.1 1994/08/07 18:01:34 wollman Exp $";
33static char sccsid[] = "@(#)rpc_scan.c 1.11 89/02/22 (C) 1987 SMI";
33#endif
34
35/*
34#endif
35
36/*
36 * rpc_scan.c, Scanner for the RPC protocol compiler
37 * Copyright (C) 1987, Sun Microsystems, Inc.
37 * rpc_scan.c, Scanner for the RPC protocol compiler
38 * Copyright (C) 1987, Sun Microsystems, Inc.
38 */
39 */
40
41#include <sys/wait.h>
39#include <stdio.h>
40#include <ctype.h>
42#include <stdio.h>
43#include <ctype.h>
41#include <strings.h>
44#include
42#include "rpc_scan.h"
45#include "rpc_scan.h"
46#include "rpc_parse.h"
43#include "rpc_util.h"
44
45#define startcomment(where) (where[0] == '/' && where[1] == '*')
46#define endcomment(where) (where[-1] == '*' && where[0] == '/')
47
48static int pushed = 0; /* is a token pushed */
49static token lasttok; /* last token, if pushed */
50
47#include "rpc_util.h"
48
49#define startcomment(where) (where[0] == '/' && where[1] == '*')
50#define endcomment(where) (where[-1] == '*' && where[0] == '/')
51
52static int pushed = 0; /* is a token pushed */
53static token lasttok; /* last token, if pushed */
54
51static int unget_token(), findstrconst(), findconst(), findkind(), cppline(),
52 directive(), printdirective(), docppline();
55static int unget_token __P(( token * ));
56static int findstrconst __P(( char **, char **));
57static int findchrconst __P(( char **, char **));
58static int findconst __P(( char **, char **));
59static int findkind __P(( char **, token * ));
60static int cppline __P(( char * ));
61static int directive __P(( char * ));
62static int printdirective __P(( char * ));
63static int docppline __P(( char *, int *, char ** ));
64
53/*
65/*
54 * scan expecting 1 given token
66 * scan expecting 1 given token
55 */
56void
57scan(expect, tokp)
58 tok_kind expect;
59 token *tokp;
60{
61 get_token(tokp);
62 if (tokp->kind != expect) {
63 expected1(expect);
64 }
65}
66
67/*
67 */
68void
69scan(expect, tokp)
70 tok_kind expect;
71 token *tokp;
72{
73 get_token(tokp);
74 if (tokp->kind != expect) {
75 expected1(expect);
76 }
77}
78
79/*
68 * scan expecting 2 given tokens
80 * scan expecting any of the 2 given tokens
69 */
70void
71scan2(expect1, expect2, tokp)
72 tok_kind expect1;
73 tok_kind expect2;
74 token *tokp;
75{
76 get_token(tokp);
77 if (tokp->kind != expect1 && tokp->kind != expect2) {
78 expected2(expect1, expect2);
79 }
80}
81
82/*
81 */
82void
83scan2(expect1, expect2, tokp)
84 tok_kind expect1;
85 tok_kind expect2;
86 token *tokp;
87{
88 get_token(tokp);
89 if (tokp->kind != expect1 && tokp->kind != expect2) {
90 expected2(expect1, expect2);
91 }
92}
93
94/*
83 * scan expecting 3 given token
95 * scan expecting any of the 3 given token
84 */
85void
86scan3(expect1, expect2, expect3, tokp)
87 tok_kind expect1;
88 tok_kind expect2;
89 tok_kind expect3;
90 token *tokp;
91{
92 get_token(tokp);
93 if (tokp->kind != expect1 && tokp->kind != expect2
94 && tokp->kind != expect3) {
95 expected3(expect1, expect2, expect3);
96 }
97}
98
96 */
97void
98scan3(expect1, expect2, expect3, tokp)
99 tok_kind expect1;
100 tok_kind expect2;
101 tok_kind expect3;
102 token *tokp;
103{
104 get_token(tokp);
105 if (tokp->kind != expect1 && tokp->kind != expect2
106 && tokp->kind != expect3) {
107 expected3(expect1, expect2, expect3);
108 }
109}
110
99
100/*
111/*
101 * scan expecting a constant, possibly symbolic
112 * scan expecting a constant, possibly symbolic
102 */
103void
104scan_num(tokp)
105 token *tokp;
106{
107 get_token(tokp);
108 switch (tokp->kind) {
109 case TOK_IDENT:
110 break;
111 default:
112 error("constant or identifier expected");
113 }
114}
115
113 */
114void
115scan_num(tokp)
116 token *tokp;
117{
118 get_token(tokp);
119 switch (tokp->kind) {
120 case TOK_IDENT:
121 break;
122 default:
123 error("constant or identifier expected");
124 }
125}
126
116
117/*
127/*
118 * Peek at the next token
128 * Peek at the next token
119 */
120void
121peek(tokp)
122 token *tokp;
123{
124 get_token(tokp);
125 unget_token(tokp);
126}
127
129 */
130void
131peek(tokp)
132 token *tokp;
133{
134 get_token(tokp);
135 unget_token(tokp);
136}
137
128
129/*
138/*
130 * Peek at the next token and scan it if it matches what you expect
139 * Peek at the next token and scan it if it matches what you expect
131 */
132int
133peekscan(expect, tokp)
134 tok_kind expect;
135 token *tokp;
136{
137 peek(tokp);
138 if (tokp->kind == expect) {
139 get_token(tokp);
140 return (1);
141 }
142 return (0);
143}
144
140 */
141int
142peekscan(expect, tokp)
143 tok_kind expect;
144 token *tokp;
145{
146 peek(tokp);
147 if (tokp->kind == expect) {
148 get_token(tokp);
149 return (1);
150 }
151 return (0);
152}
153
145
146
147/*
154/*
148 * Get the next token, printing out any directive that are encountered.
155 * Get the next token, printing out any directive that are encountered.
149 */
150void
151get_token(tokp)
152 token *tokp;
153{
154 int commenting;
156 */
157void
158get_token(tokp)
159 token *tokp;
160{
161 int commenting;
155
162 int stat = 0;
163
164
156 if (pushed) {
157 pushed = 0;
158 *tokp = lasttok;
159 return;
160 }
161 commenting = 0;
162 for (;;) {
163 if (*where == 0) {
164 for (;;) {
165 if (!fgets(curline, MAXLINESIZE, fin)) {
166 tokp->kind = TOK_EOF;
165 if (pushed) {
166 pushed = 0;
167 *tokp = lasttok;
168 return;
169 }
170 commenting = 0;
171 for (;;) {
172 if (*where == 0) {
173 for (;;) {
174 if (!fgets(curline, MAXLINESIZE, fin)) {
175 tokp->kind = TOK_EOF;
176 /* now check if cpp returned non NULL value */
177 waitpid(childpid, &stat, WUNTRACED);
178 if (stat > 0) {
179 /* Set return value from rpcgen */
180 nonfatalerrors = stat >> 8;
181 }
167 *where = 0;
168 return;
169 }
170 linenum++;
171 if (commenting) {
172 break;
173 } else if (cppline(curline)) {
182 *where = 0;
183 return;
184 }
185 linenum++;
186 if (commenting) {
187 break;
188 } else if (cppline(curline)) {
174 docppline(curline, &linenum,
189 docppline(curline, &linenum,
175 &infilename);
176 } else if (directive(curline)) {
177 printdirective(curline);
178 } else {
179 break;
180 }
181 }
182 where = curline;
183 } else if (isspace(*where)) {
184 while (isspace(*where)) {
185 where++; /* eat */
186 }
187 } else if (commenting) {
190 &infilename);
191 } else if (directive(curline)) {
192 printdirective(curline);
193 } else {
194 break;
195 }
196 }
197 where = curline;
198 } else if (isspace(*where)) {
199 while (isspace(*where)) {
200 where++; /* eat */
201 }
202 } else if (commenting) {
188 where++;
189 if (endcomment(where)) {
190 where++;
191 commenting--;
203 for (where++; *where; where++) {
204 if (endcomment(where)) {
205 where++;
206 commenting--;
207 break;
208 }
192 }
193 } else if (startcomment(where)) {
194 where += 2;
195 commenting++;
196 } else {
197 break;
198 }
199 }
200
201 /*
209 }
210 } else if (startcomment(where)) {
211 where += 2;
212 commenting++;
213 } else {
214 break;
215 }
216 }
217
218 /*
202 * 'where' is not whitespace, comment or directive Must be a token!
219 * 'where' is not whitespace, comment or directive Must be a token!
203 */
204 switch (*where) {
205 case ':':
206 tokp->kind = TOK_COLON;
207 where++;
208 break;
209 case ';':
210 tokp->kind = TOK_SEMICOLON;

--- 43 unchanged lines hidden (view full) ---

254 tokp->kind = TOK_RANGLE;
255 where++;
256 break;
257
258 case '"':
259 tokp->kind = TOK_STRCONST;
260 findstrconst(&where, &tokp->str);
261 break;
220 */
221 switch (*where) {
222 case ':':
223 tokp->kind = TOK_COLON;
224 where++;
225 break;
226 case ';':
227 tokp->kind = TOK_SEMICOLON;

--- 43 unchanged lines hidden (view full) ---

271 tokp->kind = TOK_RANGLE;
272 where++;
273 break;
274
275 case '"':
276 tokp->kind = TOK_STRCONST;
277 findstrconst(&where, &tokp->str);
278 break;
279 case '\'':
280 tokp->kind = TOK_CHARCONST;
281 findchrconst(&where, &tokp->str);
282 break;
262
263 case '-':
264 case '0':
265 case '1':
266 case '2':
267 case '3':
268 case '4':
269 case '5':
270 case '6':
271 case '7':
272 case '8':
273 case '9':
274 tokp->kind = TOK_IDENT;
275 findconst(&where, &tokp->str);
276 break;
277
283
284 case '-':
285 case '0':
286 case '1':
287 case '2':
288 case '3':
289 case '4':
290 case '5':
291 case '6':
292 case '7':
293 case '8':
294 case '9':
295 tokp->kind = TOK_IDENT;
296 findconst(&where, &tokp->str);
297 break;
298
278
279 default:
280 if (!(isalpha(*where) || *where == '_')) {
281 char buf[100];
282 char *p;
283
284 s_print(buf, "illegal character in file: ");
285 p = buf + strlen(buf);
286 if (isprint(*where)) {
287 s_print(p, "%c", *where);
288 } else {
289 s_print(p, "%d", *where);
290 }
291 error(buf);
292 }
293 findkind(&where, tokp);
294 break;
295 }
296}
297
299 default:
300 if (!(isalpha(*where) || *where == '_')) {
301 char buf[100];
302 char *p;
303
304 s_print(buf, "illegal character in file: ");
305 p = buf + strlen(buf);
306 if (isprint(*where)) {
307 s_print(p, "%c", *where);
308 } else {
309 s_print(p, "%d", *where);
310 }
311 error(buf);
312 }
313 findkind(&where, tokp);
314 break;
315 }
316}
317
298
299
300static
301unget_token(tokp)
302 token *tokp;
303{
304 lasttok = *tokp;
305 pushed = 1;
306}
307
318static
319unget_token(tokp)
320 token *tokp;
321{
322 lasttok = *tokp;
323 pushed = 1;
324}
325
308
309static
310findstrconst(str, val)
311 char **str;
312 char **val;
313{
314 char *p;
315 int size;
316

--- 8 unchanged lines hidden (view full) ---

325 size = p - *str;
326 *val = alloc(size + 1);
327 (void) strncpy(*val, *str, size);
328 (*val)[size] = 0;
329 *str = p;
330}
331
332static
326static
327findstrconst(str, val)
328 char **str;
329 char **val;
330{
331 char *p;
332 int size;
333

--- 8 unchanged lines hidden (view full) ---

342 size = p - *str;
343 *val = alloc(size + 1);
344 (void) strncpy(*val, *str, size);
345 (*val)[size] = 0;
346 *str = p;
347}
348
349static
350findchrconst(str, val)
351 char **str;
352 char **val;
353{
354 char *p;
355 int size;
356
357 p = *str;
358 do {
359 *p++;
360 } while (*p && *p != '\'');
361 if (*p == 0) {
362 error("unterminated string constant");
363 }
364 p++;
365 size = p - *str;
366 if (size != 3) {
367 error("empty char string");
368 }
369 *val = alloc(size + 1);
370 (void) strncpy(*val, *str, size);
371 (*val)[size] = 0;
372 *str = p;
373}
374
375static
333findconst(str, val)
334 char **str;
335 char **val;
336{
337 char *p;
338 int size;
339
340 p = *str;

--- 9 unchanged lines hidden (view full) ---

350 }
351 size = p - *str;
352 *val = alloc(size + 1);
353 (void) strncpy(*val, *str, size);
354 (*val)[size] = 0;
355 *str = p;
356}
357
376findconst(str, val)
377 char **str;
378 char **val;
379{
380 char *p;
381 int size;
382
383 p = *str;

--- 9 unchanged lines hidden (view full) ---

393 }
394 size = p - *str;
395 *val = alloc(size + 1);
396 (void) strncpy(*val, *str, size);
397 (*val)[size] = 0;
398 *str = p;
399}
400
358
359
360static token symbols[] = {
361 {TOK_CONST, "const"},
362 {TOK_UNION, "union"},
363 {TOK_SWITCH, "switch"},
364 {TOK_CASE, "case"},
365 {TOK_DEFAULT, "default"},
366 {TOK_STRUCT, "struct"},
367 {TOK_TYPEDEF, "typedef"},
368 {TOK_ENUM, "enum"},
369 {TOK_OPAQUE, "opaque"},
370 {TOK_BOOL, "bool"},
371 {TOK_VOID, "void"},
372 {TOK_CHAR, "char"},
373 {TOK_INT, "int"},
374 {TOK_UNSIGNED, "unsigned"},
375 {TOK_SHORT, "short"},
376 {TOK_LONG, "long"},
401static token symbols[] = {
402 {TOK_CONST, "const"},
403 {TOK_UNION, "union"},
404 {TOK_SWITCH, "switch"},
405 {TOK_CASE, "case"},
406 {TOK_DEFAULT, "default"},
407 {TOK_STRUCT, "struct"},
408 {TOK_TYPEDEF, "typedef"},
409 {TOK_ENUM, "enum"},
410 {TOK_OPAQUE, "opaque"},
411 {TOK_BOOL, "bool"},
412 {TOK_VOID, "void"},
413 {TOK_CHAR, "char"},
414 {TOK_INT, "int"},
415 {TOK_UNSIGNED, "unsigned"},
416 {TOK_SHORT, "short"},
417 {TOK_LONG, "long"},
418 {TOK_HYPER, "hyper"},
377 {TOK_FLOAT, "float"},
378 {TOK_DOUBLE, "double"},
419 {TOK_FLOAT, "float"},
420 {TOK_DOUBLE, "double"},
421 {TOK_QUAD, "quadruple"},
379 {TOK_STRING, "string"},
380 {TOK_PROGRAM, "program"},
381 {TOK_VERSION, "version"},
382 {TOK_EOF, "??????"},
383};
384
422 {TOK_STRING, "string"},
423 {TOK_PROGRAM, "program"},
424 {TOK_VERSION, "version"},
425 {TOK_EOF, "??????"},
426};
427
385
386static
387findkind(mark, tokp)
388 char **mark;
389 token *tokp;
390{
428static
429findkind(mark, tokp)
430 char **mark;
431 token *tokp;
432{
391
392 int len;
393 token *s;
394 char *str;
395
396 str = *mark;
397 for (s = symbols; s->kind != TOK_EOF; s++) {
398 len = strlen(s->str);
399 if (strncmp(str, s->str, len) == 0) {

--- 77 unchanged lines hidden --- 		433 int len;
434 token *s;
435 char *str;
436
437 str = *mark;
438 for (s = symbols; s->kind != TOK_EOF; s++) {
439 len = strlen(s->str);
440 if (strncmp(str, s->str, len) == 0) {

--- 77 unchanged lines hidden ---