GCC Code Coverage Report | |||||||||||||||||||||
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Line | Branch | Exec | Source |
1 |
/* $OpenBSD: rpc_scan.c,v 1.19 2016/01/15 10:14:32 jasper Exp $ */ |
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2 |
/* $NetBSD: rpc_scan.c,v 1.4 1995/06/11 21:50:02 pk Exp $ */ |
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3 |
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4 |
/* |
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5 |
* Copyright (c) 2010, Oracle America, Inc. |
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6 |
* |
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7 |
* Redistribution and use in source and binary forms, with or without |
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8 |
* modification, are permitted provided that the following conditions are |
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9 |
* met: |
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10 |
* |
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11 |
* * Redistributions of source code must retain the above copyright |
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12 |
* notice, this list of conditions and the following disclaimer. |
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13 |
* * Redistributions in binary form must reproduce the above |
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14 |
* copyright notice, this list of conditions and the following |
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15 |
* disclaimer in the documentation and/or other materials |
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16 |
* provided with the distribution. |
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17 |
* * Neither the name of the "Oracle America, Inc." nor the names of its |
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18 |
* contributors may be used to endorse or promote products derived |
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19 |
* from this software without specific prior written permission. |
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20 |
* |
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21 |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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22 |
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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23 |
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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24 |
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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25 |
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
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26 |
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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27 |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
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28 |
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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29 |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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30 |
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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31 |
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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32 |
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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33 |
*/ |
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34 |
|||
35 |
/* |
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36 |
* rpc_scan.c, Scanner for the RPC protocol compiler |
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37 |
*/ |
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38 |
#include <stdlib.h> |
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39 |
#include <stdio.h> |
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40 |
#include <ctype.h> |
||
41 |
#include <string.h> |
||
42 |
#include "rpc_scan.h" |
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43 |
#include "rpc_parse.h" |
||
44 |
#include "rpc_util.h" |
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45 |
|||
46 |
static void unget_token(token *tokp); |
||
47 |
static void findstrconst(char **, char **); |
||
48 |
static void findchrconst(char **, char **); |
||
49 |
static void findconst(char **, char **); |
||
50 |
static void findkind(char **, token *); |
||
51 |
static int cppline(char *); |
||
52 |
static int directive(char *); |
||
53 |
static void printdirective(char *); |
||
54 |
static void docppline(char *, int *, char **); |
||
55 |
|||
56 |
#define startcomment(where) (where[0] == '/' && where[1] == '*') |
||
57 |
#define endcomment(where) (where[-1] == '*' && where[0] == '/') |
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58 |
|||
59 |
static int pushed = 0; /* is a token pushed */ |
||
60 |
static token lasttok; /* last token, if pushed */ |
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61 |
|||
62 |
/* |
||
63 |
* scan expecting 1 given token |
||
64 |
*/ |
||
65 |
void |
||
66 |
scan(expect, tokp) |
||
67 |
tok_kind expect; |
||
68 |
token *tokp; |
||
69 |
{ |
||
70 |
17672 |
get_token(tokp); |
|
71 |
✗✓ | 8836 |
if (tokp->kind != expect) |
72 |
expected1(expect); |
||
73 |
8836 |
} |
|
74 |
|||
75 |
/* |
||
76 |
* scan expecting any of the 2 given tokens |
||
77 |
*/ |
||
78 |
void |
||
79 |
scan2(expect1, expect2, tokp) |
||
80 |
tok_kind expect1; |
||
81 |
tok_kind expect2; |
||
82 |
token *tokp; |
||
83 |
{ |
||
84 |
5312 |
get_token(tokp); |
|
85 |
✓✓✗✓ |
4308 |
if (tokp->kind != expect1 && tokp->kind != expect2) |
86 |
expected2(expect1, expect2); |
||
87 |
2656 |
} |
|
88 |
|||
89 |
/* |
||
90 |
* scan expecting any of the 3 given token |
||
91 |
*/ |
||
92 |
void |
||
93 |
scan3(expect1, expect2, expect3, tokp) |
||
94 |
tok_kind expect1; |
||
95 |
tok_kind expect2; |
||
96 |
tok_kind expect3; |
||
97 |
token *tokp; |
||
98 |
{ |
||
99 |
976 |
get_token(tokp); |
|
100 |
✓✓✓✓ ✗✓ |
1392 |
if (tokp->kind != expect1 && tokp->kind != expect2 && |
101 |
432 |
tokp->kind != expect3) |
|
102 |
expected3(expect1, expect2, expect3); |
||
103 |
488 |
} |
|
104 |
|||
105 |
/* |
||
106 |
* scan expecting a constant, possibly symbolic |
||
107 |
*/ |
||
108 |
void |
||
109 |
scan_num(tokp) |
||
110 |
token *tokp; |
||
111 |
{ |
||
112 |
2448 |
get_token(tokp); |
|
113 |
✗✓ | 1224 |
switch (tokp->kind) { |
114 |
case TOK_IDENT: |
||
115 |
break; |
||
116 |
default: |
||
117 |
error("constant or identifier expected"); |
||
118 |
} |
||
119 |
1224 |
} |
|
120 |
|||
121 |
/* |
||
122 |
* Peek at the next token |
||
123 |
*/ |
||
124 |
void |
||
125 |
peek(tokp) |
||
126 |
token *tokp; |
||
127 |
{ |
||
128 |
15104 |
get_token(tokp); |
|
129 |
7552 |
unget_token(tokp); |
|
130 |
7552 |
} |
|
131 |
|||
132 |
/* |
||
133 |
* Peek at the next token and scan it if it matches what you expect |
||
134 |
*/ |
||
135 |
int |
||
136 |
peekscan(expect, tokp) |
||
137 |
tok_kind expect; |
||
138 |
token *tokp; |
||
139 |
{ |
||
140 |
9808 |
peek(tokp); |
|
141 |
✓✓ | 4904 |
if (tokp->kind == expect) { |
142 |
276 |
get_token(tokp); |
|
143 |
276 |
return (1); |
|
144 |
} |
||
145 |
4628 |
return (0); |
|
146 |
4904 |
} |
|
147 |
|||
148 |
/* |
||
149 |
* Get the next token, printing out any directive that are encountered. |
||
150 |
*/ |
||
151 |
void |
||
152 |
get_token(tokp) |
||
153 |
token *tokp; |
||
154 |
{ |
||
155 |
int commenting; |
||
156 |
|||
157 |
✓✓ | 50712 |
if (pushed) { |
158 |
7552 |
pushed = 0; |
|
159 |
7552 |
*tokp = lasttok; |
|
160 |
7552 |
return; |
|
161 |
} |
||
162 |
commenting = 0; |
||
163 |
17804 |
for (;;) { |
|
164 |
✓✓ | 53376 |
if (*where == 0) { |
165 |
for (;;) { |
||
166 |
✓✓ | 9832 |
if (!fgets(curline, MAXLINESIZE, fin)) { |
167 |
60 |
tokp->kind = TOK_EOF; |
|
168 |
60 |
*where = 0; |
|
169 |
60 |
return; |
|
170 |
} |
||
171 |
9772 |
linenum++; |
|
172 |
✓✓ | 9772 |
if (commenting) { |
173 |
break; |
||
174 |
✓✓ | 7464 |
} else if (cppline(curline)) { |
175 |
424 |
docppline(curline, &linenum, |
|
176 |
&infilename); |
||
177 |
✓✓ | 7464 |
} else if (directive(curline)) { |
178 |
324 |
printdirective(curline); |
|
179 |
} else { |
||
180 |
break; |
||
181 |
} |
||
182 |
} |
||
183 |
9024 |
where = curline; |
|
184 |
✓✓ | 53316 |
} else if (isspace((unsigned char)*where)) { |
185 |
✓✓ | 69192 |
while (isspace((unsigned char)*where)) { |
186 |
23792 |
where++; /* eat */ |
|
187 |
} |
||
188 |
✓✓ | 22684 |
} else if (commenting) { |
189 |
✓✓ | 260928 |
for (where++; *where; where++) { |
190 |
✓✓✓✓ |
133824 |
if (endcomment(where)) { |
191 |
1500 |
where++; |
|
192 |
1500 |
commenting--; |
|
193 |
1500 |
break; |
|
194 |
} |
||
195 |
} |
||
196 |
✓✓✓✗ |
20744 |
} else if (startcomment(where)) { |
197 |
1500 |
where += 2; |
|
198 |
1500 |
commenting++; |
|
199 |
} else { |
||
200 |
break; |
||
201 |
} |
||
202 |
} |
||
203 |
|||
204 |
/* |
||
205 |
* 'where' is not whitespace, comment or directive Must be a token! |
||
206 |
*/ |
||
207 |
✓✓✓✓ ✓✓✓✓ ✓✓✓✓ ✓✗✗✗ ✗✗✗✗ ✗✗✗✗ ✗✓✓ |
17744 |
switch (*where) { |
208 |
case ':': |
||
209 |
112 |
tokp->kind = TOK_COLON; |
|
210 |
112 |
where++; |
|
211 |
112 |
break; |
|
212 |
case ';': |
||
213 |
3184 |
tokp->kind = TOK_SEMICOLON; |
|
214 |
3184 |
where++; |
|
215 |
3184 |
break; |
|
216 |
case ',': |
||
217 |
364 |
tokp->kind = TOK_COMMA; |
|
218 |
364 |
where++; |
|
219 |
364 |
break; |
|
220 |
case '=': |
||
221 |
1540 |
tokp->kind = TOK_EQUAL; |
|
222 |
1540 |
where++; |
|
223 |
1540 |
break; |
|
224 |
case '*': |
||
225 |
28 |
tokp->kind = TOK_STAR; |
|
226 |
28 |
where++; |
|
227 |
28 |
break; |
|
228 |
case '[': |
||
229 |
76 |
tokp->kind = TOK_LBRACKET; |
|
230 |
76 |
where++; |
|
231 |
76 |
break; |
|
232 |
case ']': |
||
233 |
76 |
tokp->kind = TOK_RBRACKET; |
|
234 |
76 |
where++; |
|
235 |
76 |
break; |
|
236 |
case '{': |
||
237 |
648 |
tokp->kind = TOK_LBRACE; |
|
238 |
648 |
where++; |
|
239 |
648 |
break; |
|
240 |
case '}': |
||
241 |
648 |
tokp->kind = TOK_RBRACE; |
|
242 |
648 |
where++; |
|
243 |
648 |
break; |
|
244 |
case '(': |
||
245 |
512 |
tokp->kind = TOK_LPAREN; |
|
246 |
512 |
where++; |
|
247 |
512 |
break; |
|
248 |
case ')': |
||
249 |
512 |
tokp->kind = TOK_RPAREN; |
|
250 |
512 |
where++; |
|
251 |
512 |
break; |
|
252 |
case '<': |
||
253 |
164 |
tokp->kind = TOK_LANGLE; |
|
254 |
164 |
where++; |
|
255 |
164 |
break; |
|
256 |
case '>': |
||
257 |
164 |
tokp->kind = TOK_RANGLE; |
|
258 |
164 |
where++; |
|
259 |
164 |
break; |
|
260 |
|||
261 |
case '"': |
||
262 |
tokp->kind = TOK_STRCONST; |
||
263 |
findstrconst(&where, &tokp->str); |
||
264 |
break; |
||
265 |
case '\'': |
||
266 |
tokp->kind = TOK_CHARCONST; |
||
267 |
findchrconst(&where, &tokp->str); |
||
268 |
break; |
||
269 |
|||
270 |
case '-': |
||
271 |
case '0': |
||
272 |
case '1': |
||
273 |
case '2': |
||
274 |
case '3': |
||
275 |
case '4': |
||
276 |
case '5': |
||
277 |
case '6': |
||
278 |
case '7': |
||
279 |
case '8': |
||
280 |
case '9': |
||
281 |
1588 |
tokp->kind = TOK_IDENT; |
|
282 |
1588 |
findconst(&where, &tokp->str); |
|
283 |
1588 |
break; |
|
284 |
|||
285 |
default: |
||
286 |
✗✓✗✗ |
8128 |
if (!(isalpha((unsigned char)*where) || *where == '_')) { |
287 |
char buf[100], chs[20]; |
||
288 |
|||
289 |
if (isprint((unsigned char)*where)) { |
||
290 |
snprintf(chs, sizeof chs, "%c", *where); |
||
291 |
} else { |
||
292 |
snprintf(chs, sizeof chs, "%d", *where); |
||
293 |
} |
||
294 |
|||
295 |
snprintf(buf, sizeof buf, |
||
296 |
"illegal character in file: %s", chs); |
||
297 |
error(buf); |
||
298 |
} |
||
299 |
8128 |
findkind(&where, tokp); |
|
300 |
8128 |
break; |
|
301 |
} |
||
302 |
43100 |
} |
|
303 |
|||
304 |
static void |
||
305 |
unget_token(tokp) |
||
306 |
token *tokp; |
||
307 |
{ |
||
308 |
15104 |
lasttok = *tokp; |
|
309 |
7552 |
pushed = 1; |
|
310 |
7552 |
} |
|
311 |
|||
312 |
static void |
||
313 |
findstrconst(str, val) |
||
314 |
char **str; |
||
315 |
char **val; |
||
316 |
{ |
||
317 |
char *p; |
||
318 |
int size; |
||
319 |
|||
320 |
p = *str; |
||
321 |
do { |
||
322 |
p++; |
||
323 |
} while (*p && *p != '"'); |
||
324 |
if (*p == 0) { |
||
325 |
error("unterminated string constant"); |
||
326 |
} |
||
327 |
p++; |
||
328 |
size = p - *str; |
||
329 |
*val = malloc(size + 1); |
||
330 |
if (val == NULL) |
||
331 |
error("alloc failed"); |
||
332 |
(void) strncpy(*val, *str, size); |
||
333 |
(*val)[size] = 0; |
||
334 |
*str = p; |
||
335 |
} |
||
336 |
|||
337 |
static void |
||
338 |
findchrconst(str, val) |
||
339 |
char **str; |
||
340 |
char **val; |
||
341 |
{ |
||
342 |
char *p; |
||
343 |
int size; |
||
344 |
|||
345 |
p = *str; |
||
346 |
do { |
||
347 |
p++; |
||
348 |
} while (*p && *p != '\''); |
||
349 |
if (*p == 0) { |
||
350 |
error("unterminated string constant"); |
||
351 |
} |
||
352 |
p++; |
||
353 |
size = p - *str; |
||
354 |
if (size != 3) { |
||
355 |
error("empty char string"); |
||
356 |
} |
||
357 |
*val = malloc(size + 1); |
||
358 |
if (val == NULL) |
||
359 |
error("alloc failed"); |
||
360 |
(void) strncpy(*val, *str, size); |
||
361 |
(*val)[size] = 0; |
||
362 |
*str = p; |
||
363 |
} |
||
364 |
|||
365 |
static void |
||
366 |
findconst(str, val) |
||
367 |
char **str; |
||
368 |
char **val; |
||
369 |
{ |
||
370 |
char *p; |
||
371 |
int size; |
||
372 |
|||
373 |
3176 |
p = *str; |
|
374 |
✓✓✓✓ |
1944 |
if (*p == '0' && *(p + 1) == 'x') { |
375 |
252 |
p++; |
|
376 |
252 |
do { |
|
377 |
2012 |
p++; |
|
378 |
✓✓ | 2012 |
} while (isxdigit((unsigned char)*p)); |
379 |
} else { |
||
380 |
do { |
||
381 |
2436 |
p++; |
|
382 |
✓✓ | 2436 |
} while (isdigit((unsigned char)*p)); |
383 |
} |
||
384 |
1588 |
size = p - *str; |
|
385 |
1588 |
*val = malloc(size + 1); |
|
386 |
✗✓ | 1588 |
if (val == NULL) |
387 |
error("alloc failed"); |
||
388 |
1588 |
(void) strncpy(*val, *str, size); |
|
389 |
1588 |
(*val)[size] = 0; |
|
390 |
1588 |
*str = p; |
|
391 |
1588 |
} |
|
392 |
|||
393 |
static token symbols[] = { |
||
394 |
{TOK_CONST, "const"}, |
||
395 |
{TOK_UNION, "union"}, |
||
396 |
{TOK_SWITCH, "switch"}, |
||
397 |
{TOK_CASE, "case"}, |
||
398 |
{TOK_DEFAULT, "default"}, |
||
399 |
{TOK_STRUCT, "struct"}, |
||
400 |
{TOK_TYPEDEF, "typedef"}, |
||
401 |
{TOK_ENUM, "enum"}, |
||
402 |
{TOK_OPAQUE, "opaque"}, |
||
403 |
{TOK_BOOL, "bool"}, |
||
404 |
{TOK_VOID, "void"}, |
||
405 |
{TOK_CHAR, "char"}, |
||
406 |
{TOK_INT, "int"}, |
||
407 |
{TOK_UNSIGNED, "unsigned"}, |
||
408 |
{TOK_SHORT, "short"}, |
||
409 |
{TOK_LONG, "long"}, |
||
410 |
{TOK_HYPER, "hyper"}, |
||
411 |
{TOK_FLOAT, "float"}, |
||
412 |
{TOK_DOUBLE, "double"}, |
||
413 |
{TOK_QUAD, "quadruple"}, |
||
414 |
{TOK_STRING, "string"}, |
||
415 |
{TOK_PROGRAM, "program"}, |
||
416 |
{TOK_VERSION, "version"}, |
||
417 |
{TOK_EOF, "??????"}, |
||
418 |
}; |
||
419 |
|||
420 |
static void |
||
421 |
findkind(mark, tokp) |
||
422 |
char **mark; |
||
423 |
token *tokp; |
||
424 |
{ |
||
425 |
int len; |
||
426 |
token *s; |
||
427 |
char *str; |
||
428 |
|||
429 |
16256 |
str = *mark; |
|
430 |
✓✓ | 301656 |
for (s = symbols; s->kind != TOK_EOF; s++) { |
431 |
145684 |
len = strlen(s->str); |
|
432 |
✓✓ | 145684 |
if (strncmp(str, s->str, len) == 0) { |
433 |
✓✓✓✗ |
5980 |
if (!isalnum((unsigned char)str[len]) && |
434 |
2984 |
str[len] != '_') { |
|
435 |
2984 |
tokp->kind = s->kind; |
|
436 |
2984 |
tokp->str = s->str; |
|
437 |
2984 |
*mark = str + len; |
|
438 |
2984 |
return; |
|
439 |
} |
||
440 |
} |
||
441 |
} |
||
442 |
5144 |
tokp->kind = TOK_IDENT; |
|
443 |
✓✓✓✓ |
110316 |
for (len = 0; isalnum((unsigned char)str[len]) || str[len] == '_'; |
444 |
45836 |
len++) |
|
445 |
; |
||
446 |
5144 |
tokp->str = malloc(len + 1); |
|
447 |
✗✓ | 5144 |
if (tokp->str == NULL) |
448 |
error("alloc failed"); |
||
449 |
5144 |
(void) strncpy(tokp->str, str, len); |
|
450 |
5144 |
tokp->str[len] = 0; |
|
451 |
5144 |
*mark = str + len; |
|
452 |
13272 |
} |
|
453 |
|||
454 |
static int |
||
455 |
cppline(line) |
||
456 |
char *line; |
||
457 |
{ |
||
458 |
✓✗ | 29856 |
return (line == curline && *line == '#'); |
459 |
} |
||
460 |
|||
461 |
static int |
||
462 |
directive(line) |
||
463 |
char *line; |
||
464 |
{ |
||
465 |
✓✗ | 28160 |
return (line == curline && *line == '%'); |
466 |
} |
||
467 |
|||
468 |
static void |
||
469 |
printdirective(line) |
||
470 |
char *line; |
||
471 |
{ |
||
472 |
648 |
fprintf(fout, "%s", line + 1); |
|
473 |
324 |
} |
|
474 |
|||
475 |
static void |
||
476 |
docppline(line, lineno, fname) |
||
477 |
char *line; |
||
478 |
int *lineno; |
||
479 |
char **fname; |
||
480 |
{ |
||
481 |
char *file; |
||
482 |
int num; |
||
483 |
char *p; |
||
484 |
|||
485 |
848 |
line++; |
|
486 |
✓✓ | 1696 |
while (isspace((unsigned char)*line)) { |
487 |
424 |
line++; |
|
488 |
} |
||
489 |
424 |
num = atoi(line); |
|
490 |
✓✓ | 1948 |
while (isdigit((unsigned char)*line)) { |
491 |
550 |
line++; |
|
492 |
} |
||
493 |
✓✓ | 1272 |
while (isspace((unsigned char)*line)) { |
494 |
424 |
line++; |
|
495 |
} |
||
496 |
✗✓ | 424 |
if (*line != '"') { |
497 |
error("preprocessor error"); |
||
498 |
} |
||
499 |
424 |
line++; |
|
500 |
424 |
p = file = malloc(strlen(line) + 1); |
|
501 |
✗✓ | 424 |
if (p == NULL) |
502 |
error("alloc failed"); |
||
503 |
✓✗✓✓ |
18456 |
while (*line && *line != '"') { |
504 |
4296 |
*p++ = *line++; |
|
505 |
} |
||
506 |
✗✓ | 424 |
if (*line == 0) { |
507 |
error("preprocessor error"); |
||
508 |
} |
||
509 |
424 |
*p = 0; |
|
510 |
✗✓ | 424 |
if (*file == 0) { |
511 |
*fname = NULL; |
||
512 |
free(file); |
||
513 |
} else { |
||
514 |
424 |
*fname = file; |
|
515 |
} |
||
516 |
424 |
*lineno = num - 1; |
|
517 |
424 |
} |
Generated by: GCOVR (Version 3.3) |