File: | src/bin/chio/obj/parse.c |
Warning: | line 724, column 26 Use of zero-allocated memory |
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1 | #include <stdlib.h> | ||||
2 | #include <string.h> | ||||
3 | #define YYBYACC1 1 | ||||
4 | #define YYMAJOR1 1 | ||||
5 | #define YYMINOR9 9 | ||||
6 | #define YYLEXyylex() yylex() | ||||
7 | #define YYEMPTY-1 -1 | ||||
8 | #define yyclearin(yychar=(-1)) (yychar=(YYEMPTY-1)) | ||||
9 | #define yyerrok(yyerrflag=0) (yyerrflag=0) | ||||
10 | #define YYRECOVERING()(yyerrflag!=0) (yyerrflag!=0) | ||||
11 | #define YYPREFIX"yy" "yy" | ||||
12 | #line 24 "/usr/src/bin/chio/parse.y" | ||||
13 | #include <sys/types.h> | ||||
14 | #include <sys/socket.h> | ||||
15 | #include <sys/queue.h> | ||||
16 | |||||
17 | #include <ctype.h> | ||||
18 | #include <err.h> | ||||
19 | #include <libgen.h> | ||||
20 | #include <limits.h> | ||||
21 | #include <paths.h> | ||||
22 | #include <stdarg.h> | ||||
23 | #include <stdio.h> | ||||
24 | #include <string.h> | ||||
25 | |||||
26 | TAILQ_HEAD(files, file)struct files { struct file *tqh_first; struct file **tqh_last ; } files = TAILQ_HEAD_INITIALIZER(files){ ((void *)0), &(files).tqh_first }; | ||||
27 | static struct file { | ||||
28 | TAILQ_ENTRY(file)struct { struct file *tqe_next; struct file **tqe_prev; } entry; | ||||
29 | FILE *stream; | ||||
30 | char *name; | ||||
31 | int lineno; | ||||
32 | int errors; | ||||
33 | } *file, *topfile; | ||||
34 | struct file *pushfile(const char *); | ||||
35 | int popfile(void); | ||||
36 | int yyparse(void); | ||||
37 | int yylex(void); | ||||
38 | int yyerror(const char *, ...) | ||||
39 | __attribute__((__format__ (printf, 1, 2))) | ||||
40 | __attribute__((__nonnull__ (1))); | ||||
41 | int kw_cmp(const void *, const void *); | ||||
42 | int lookup(char *); | ||||
43 | int lgetc(int); | ||||
44 | int lungetc(int); | ||||
45 | int findeol(void); | ||||
46 | char *parse_tapedev(const char *, const char *, int); | ||||
47 | struct changer *new_changer(char *); | ||||
48 | |||||
49 | struct changer { | ||||
50 | TAILQ_ENTRY(changer)struct { struct changer *tqe_next; struct changer **tqe_prev; } entry; | ||||
51 | char *name; | ||||
52 | char **drives; | ||||
53 | u_int drivecnt; | ||||
54 | }; | ||||
55 | TAILQ_HEAD(changers, changer)struct changers { struct changer *tqh_first; struct changer * *tqh_last; } changers; | ||||
56 | struct changer *curchanger; | ||||
57 | |||||
58 | typedef struct { | ||||
59 | union { | ||||
60 | int64_t number; | ||||
61 | char *string; | ||||
62 | } v; | ||||
63 | int lineno; | ||||
64 | } YYSTYPE; | ||||
65 | |||||
66 | #line 67 "parse.c" | ||||
67 | #define CHANGER257 257 | ||||
68 | #define DRIVE258 258 | ||||
69 | #define ERROR259 259 | ||||
70 | #define STRING260 260 | ||||
71 | #define NUMBER261 261 | ||||
72 | #define YYERRCODE256 256 | ||||
73 | const short yylhs[] = | ||||
74 | { -1, | ||||
75 | 0, 0, 0, 0, 2, 2, 3, 5, 1, 4, | ||||
76 | 4, 6, 6, 7, | ||||
77 | }; | ||||
78 | const short yylen[] = | ||||
79 | { 2, | ||||
80 | 0, 2, 3, 3, 2, 0, 2, 0, 8, 2, | ||||
81 | 1, 2, 2, 2, | ||||
82 | }; | ||||
83 | const short yydefred[] = | ||||
84 | { 1, | ||||
85 | 0, 0, 0, 2, 0, 4, 0, 3, 0, 0, | ||||
86 | 5, 0, 8, 0, 0, 0, 0, 11, 0, 0, | ||||
87 | 13, 14, 9, 10, 12, 7, | ||||
88 | }; | ||||
89 | const short yydgoto[] = | ||||
90 | { 1, | ||||
91 | 5, 10, 21, 17, 14, 18, 19, | ||||
92 | }; | ||||
93 | const short yysindex[] = | ||||
94 | { 0, | ||||
95 | -10, 2, -255, 0, 3, 0, 4, 0, 4, -107, | ||||
96 | 0, 4, 0, -248, 7, -242, -123, 0, 7, 4, | ||||
97 | 0, 0, 0, 0, 0, 0,}; | ||||
98 | const short yyrindex[] = | ||||
99 | { 0, | ||||
100 | 0, 0, 0, 0, 0, 0, -104, 0, -122, 0, | ||||
101 | 0, -247, 0, 0, 0, 0, 0, 0, 0, -119, | ||||
102 | 0, 0, 0, 0, 0, 0,}; | ||||
103 | const short yygindex[] = | ||||
104 | { 0, | ||||
105 | 0, -5, 1, 0, 0, 5, 0, | ||||
106 | }; | ||||
107 | #define YYTABLESIZE247 247 | ||||
108 | const short yytable[] = | ||||
109 | { 4, | ||||
110 | 6, 23, 6, 11, 7, 6, 13, 15, 6, 16, | ||||
111 | 6, 6, 8, 9, 26, 12, 20, 22, 6, 25, | ||||
112 | 0, 24, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
113 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
114 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
115 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
116 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
117 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
118 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
119 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
120 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
121 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
122 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
123 | 0, 0, 15, 6, 16, 6, 6, 0, 6, 0, | ||||
124 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
125 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
126 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
127 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
128 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
129 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
130 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
131 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
132 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
133 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
134 | 0, 0, 0, 0, 0, 2, 3, | ||||
135 | }; | ||||
136 | const short yycheck[] = | ||||
137 | { 10, | ||||
138 | 123, 125, 125, 9, 260, 125, 12, 256, 256, 258, | ||||
139 | 258, 10, 10, 10, 20, 123, 10, 260, 123, 19, | ||||
140 | -1, 17, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
141 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
142 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
143 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
144 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
145 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
146 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
147 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
148 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
149 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
150 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
151 | -1, -1, 256, 256, 258, 258, 256, -1, 258, -1, | ||||
152 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
153 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
154 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
155 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
156 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
157 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
158 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
159 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
160 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
161 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
162 | -1, -1, -1, -1, -1, 256, 257, | ||||
163 | }; | ||||
164 | #define YYFINAL1 1 | ||||
165 | #ifndef YYDEBUG0 | ||||
166 | #define YYDEBUG0 0 | ||||
167 | #endif | ||||
168 | #define YYMAXTOKEN261 261 | ||||
169 | #if YYDEBUG0 | ||||
170 | const char * const yyname[] = | ||||
171 | { | ||||
172 | "end-of-file",0,0,0,0,0,0,0,0,0,"'\\n'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | ||||
173 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | ||||
174 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | ||||
175 | 0,0,0,0,0,0,0,0,0,0,0,0,"'{'",0,"'}'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | ||||
176 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | ||||
177 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | ||||
178 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"CHANGER","DRIVE", | ||||
179 | "ERROR","STRING","NUMBER", | ||||
180 | }; | ||||
181 | const char * const yyrule[] = | ||||
182 | {"$accept : grammar", | ||||
183 | "grammar :", | ||||
184 | "grammar : grammar '\\n'", | ||||
185 | "grammar : grammar main '\\n'", | ||||
186 | "grammar : grammar error '\\n'", | ||||
187 | "optnl : '\\n' optnl", | ||||
188 | "optnl :", | ||||
189 | "nl : '\\n' optnl", | ||||
190 | "$$1 :", | ||||
191 | "main : CHANGER STRING optnl '{' optnl $$1 changeropts_l '}'", | ||||
192 | "changeropts_l : changeropts_l changeroptsl", | ||||
193 | "changeropts_l : changeroptsl", | ||||
194 | "changeroptsl : changeropts nl", | ||||
195 | "changeroptsl : error nl", | ||||
196 | "changeropts : DRIVE STRING", | ||||
197 | }; | ||||
198 | #endif | ||||
199 | #ifdef YYSTACKSIZE10000 | ||||
200 | #undef YYMAXDEPTH10000 | ||||
201 | #define YYMAXDEPTH10000 YYSTACKSIZE10000 | ||||
202 | #else | ||||
203 | #ifdef YYMAXDEPTH10000 | ||||
204 | #define YYSTACKSIZE10000 YYMAXDEPTH10000 | ||||
205 | #else | ||||
206 | #define YYSTACKSIZE10000 10000 | ||||
207 | #define YYMAXDEPTH10000 10000 | ||||
208 | #endif | ||||
209 | #endif | ||||
210 | #define YYINITSTACKSIZE200 200 | ||||
211 | /* LINTUSED */ | ||||
212 | int yydebug; | ||||
213 | int yynerrs; | ||||
214 | int yyerrflag; | ||||
215 | int yychar; | ||||
216 | short *yyssp; | ||||
217 | YYSTYPE *yyvsp; | ||||
218 | YYSTYPE yyval; | ||||
219 | YYSTYPE yylval; | ||||
220 | short *yyss; | ||||
221 | short *yysslim; | ||||
222 | YYSTYPE *yyvs; | ||||
223 | unsigned int yystacksize; | ||||
224 | int yyparse(void); | ||||
225 | #line 133 "/usr/src/bin/chio/parse.y" | ||||
226 | |||||
227 | struct keywords { | ||||
228 | const char *k_name; | ||||
229 | int k_val; | ||||
230 | }; | ||||
231 | |||||
232 | int | ||||
233 | yyerror(const char *fmt, ...) | ||||
234 | { | ||||
235 | va_list ap; | ||||
236 | char *msg; | ||||
237 | |||||
238 | file->errors++; | ||||
239 | va_start(ap, fmt)__builtin_va_start(ap, fmt); | ||||
240 | if (vasprintf(&msg, fmt, ap) == -1) | ||||
241 | err(1, "yyerror vasprintf"); | ||||
242 | va_end(ap)__builtin_va_end(ap); | ||||
243 | err(1, "%s:%d: %s", file->name, yylval.lineno, msg); | ||||
244 | free(msg); | ||||
245 | return (0); | ||||
246 | } | ||||
247 | |||||
248 | int | ||||
249 | kw_cmp(const void *k, const void *e) | ||||
250 | { | ||||
251 | return (strcmp(k, ((const struct keywords *)e)->k_name)); | ||||
252 | } | ||||
253 | |||||
254 | int | ||||
255 | lookup(char *s) | ||||
256 | { | ||||
257 | /* this has to be sorted always */ | ||||
258 | static const struct keywords keywords[] = { | ||||
259 | { "changer", CHANGER257}, | ||||
260 | { "drive", DRIVE258} | ||||
261 | }; | ||||
262 | const struct keywords *p; | ||||
263 | |||||
264 | p = bsearch(s, keywords, sizeof(keywords)/sizeof(keywords[0]), | ||||
265 | sizeof(keywords[0]), kw_cmp); | ||||
266 | |||||
267 | if (p) | ||||
268 | return (p->k_val); | ||||
269 | else | ||||
270 | return (STRING260); | ||||
271 | } | ||||
272 | |||||
273 | #define MAXPUSHBACK128 128 | ||||
274 | |||||
275 | char *parsebuf; | ||||
276 | int parseindex; | ||||
277 | char pushback_buffer[MAXPUSHBACK128]; | ||||
278 | int pushback_index = 0; | ||||
279 | |||||
280 | int | ||||
281 | lgetc(int quotec) | ||||
282 | { | ||||
283 | int c, next; | ||||
284 | |||||
285 | if (parsebuf) { | ||||
286 | /* Read character from the parsebuffer instead of input. */ | ||||
287 | if (parseindex >= 0) { | ||||
288 | c = (unsigned char)parsebuf[parseindex++]; | ||||
289 | if (c != '\0') | ||||
290 | return (c); | ||||
291 | parsebuf = NULL((void *)0); | ||||
292 | } else | ||||
293 | parseindex++; | ||||
294 | } | ||||
295 | |||||
296 | if (pushback_index) | ||||
297 | return ((unsigned char)pushback_buffer[--pushback_index]); | ||||
298 | |||||
299 | if (quotec) { | ||||
300 | if ((c = getc(file->stream)(!__isthreaded ? (--(file->stream)->_r < 0 ? __srget (file->stream) : (int)(*(file->stream)->_p++)) : (getc )(file->stream))) == EOF(-1)) { | ||||
301 | yyerror("reached end of file while parsing " | ||||
302 | "quoted string"); | ||||
303 | if (file == topfile || popfile() == EOF(-1)) | ||||
304 | return (EOF(-1)); | ||||
305 | return (quotec); | ||||
306 | } | ||||
307 | return (c); | ||||
308 | } | ||||
309 | |||||
310 | while ((c = getc(file->stream)(!__isthreaded ? (--(file->stream)->_r < 0 ? __srget (file->stream) : (int)(*(file->stream)->_p++)) : (getc )(file->stream))) == '\\') { | ||||
311 | next = getc(file->stream)(!__isthreaded ? (--(file->stream)->_r < 0 ? __srget (file->stream) : (int)(*(file->stream)->_p++)) : (getc )(file->stream)); | ||||
312 | if (next != '\n') { | ||||
313 | c = next; | ||||
314 | break; | ||||
315 | } | ||||
316 | yylval.lineno = file->lineno; | ||||
317 | file->lineno++; | ||||
318 | } | ||||
319 | |||||
320 | while (c == EOF(-1)) { | ||||
321 | if (file == topfile || popfile() == EOF(-1)) | ||||
322 | return (EOF(-1)); | ||||
323 | c = getc(file->stream)(!__isthreaded ? (--(file->stream)->_r < 0 ? __srget (file->stream) : (int)(*(file->stream)->_p++)) : (getc )(file->stream)); | ||||
324 | } | ||||
325 | return (c); | ||||
326 | } | ||||
327 | |||||
328 | int | ||||
329 | lungetc(int c) | ||||
330 | { | ||||
331 | if (c == EOF(-1)) | ||||
332 | return (EOF(-1)); | ||||
333 | if (parsebuf) { | ||||
334 | parseindex--; | ||||
335 | if (parseindex >= 0) | ||||
336 | return (c); | ||||
337 | } | ||||
338 | if (pushback_index + 1 >= MAXPUSHBACK128) | ||||
339 | return (EOF(-1)); | ||||
340 | pushback_buffer[pushback_index++] = c; | ||||
341 | return (c); | ||||
342 | } | ||||
343 | |||||
344 | int | ||||
345 | findeol(void) | ||||
346 | { | ||||
347 | int c; | ||||
348 | |||||
349 | parsebuf = NULL((void *)0); | ||||
350 | pushback_index = 0; | ||||
351 | |||||
352 | /* skip to either EOF or the first real EOL */ | ||||
353 | while (1) { | ||||
354 | c = lgetc(0); | ||||
355 | if (c == '\n') { | ||||
356 | file->lineno++; | ||||
357 | break; | ||||
358 | } | ||||
359 | if (c == EOF(-1)) | ||||
360 | break; | ||||
361 | } | ||||
362 | return (ERROR259); | ||||
363 | } | ||||
364 | |||||
365 | int | ||||
366 | yylex(void) | ||||
367 | { | ||||
368 | char buf[8096]; | ||||
369 | char *p; | ||||
370 | int quotec, next, c; | ||||
371 | int token; | ||||
372 | |||||
373 | p = buf; | ||||
374 | while ((c = lgetc(0)) == ' ' || c == '\t') | ||||
375 | ; /* nothing */ | ||||
376 | |||||
377 | yylval.lineno = file->lineno; | ||||
378 | if (c == '#') | ||||
379 | while ((c = lgetc(0)) != '\n' && c != EOF(-1)) | ||||
380 | ; /* nothing */ | ||||
381 | |||||
382 | switch (c) { | ||||
383 | case '\'': | ||||
384 | case '"': | ||||
385 | quotec = c; | ||||
386 | while (1) { | ||||
387 | if ((c = lgetc(quotec)) == EOF(-1)) | ||||
388 | return (0); | ||||
389 | if (c == '\n') { | ||||
390 | file->lineno++; | ||||
391 | continue; | ||||
392 | } else if (c == '\\') { | ||||
393 | if ((next = lgetc(quotec)) == EOF(-1)) | ||||
394 | return (0); | ||||
395 | if (next == quotec || c == ' ' || c == '\t') | ||||
396 | c = next; | ||||
397 | else if (next == '\n') | ||||
398 | continue; | ||||
399 | else | ||||
400 | lungetc(next); | ||||
401 | } else if (c == quotec) { | ||||
402 | *p = '\0'; | ||||
403 | break; | ||||
404 | } else if (c == '\0') { | ||||
405 | yyerror("syntax error"); | ||||
406 | return (findeol()); | ||||
407 | } | ||||
408 | if (p + 1 >= buf + sizeof(buf) - 1) { | ||||
409 | yyerror("string too long"); | ||||
410 | return (findeol()); | ||||
411 | } | ||||
412 | *p++ = c; | ||||
413 | } | ||||
414 | yylval.v.string = strdup(buf); | ||||
415 | if (yylval.v.string == NULL((void *)0)) | ||||
416 | err(1, "%s", __func__); | ||||
417 | return (STRING260); | ||||
418 | } | ||||
419 | |||||
420 | #define allowed_to_end_number(x)(isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' || x == '=') \ | ||||
421 | (isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' || x == '=') | ||||
422 | |||||
423 | if (c == '-' || isdigit(c)) { | ||||
424 | do { | ||||
425 | *p++ = c; | ||||
426 | if ((size_t)(p-buf) >= sizeof(buf)) { | ||||
427 | yyerror("string too long"); | ||||
428 | return (findeol()); | ||||
429 | } | ||||
430 | } while ((c = lgetc(0)) != EOF(-1) && isdigit(c)); | ||||
431 | lungetc(c); | ||||
432 | if (p == buf + 1 && buf[0] == '-') | ||||
433 | goto nodigits; | ||||
434 | if (c == EOF(-1) || allowed_to_end_number(c)(isspace(c) || c == ')' || c ==',' || c == '/' || c == '}' || c == '=')) { | ||||
435 | const char *errstr = NULL((void *)0); | ||||
436 | |||||
437 | *p = '\0'; | ||||
438 | yylval.v.number = strtonum(buf, LLONG_MIN(-9223372036854775807LL -1LL), | ||||
439 | LLONG_MAX9223372036854775807LL, &errstr); | ||||
440 | if (errstr) { | ||||
441 | yyerror("\"%s\" invalid number: %s", | ||||
442 | buf, errstr); | ||||
443 | return (findeol()); | ||||
444 | } | ||||
445 | return (NUMBER261); | ||||
446 | } else { | ||||
447 | nodigits: | ||||
448 | while (p > buf + 1) | ||||
449 | lungetc((unsigned char)*--p); | ||||
450 | c = (unsigned char)*--p; | ||||
451 | if (c == '-') | ||||
452 | return (c); | ||||
453 | } | ||||
454 | } | ||||
455 | |||||
456 | #define allowed_in_string(x)(isalnum(x) || (ispunct(x) && x != '(' && x != ')' && x != '{' && x != '}' && x != '<' && x != '>' && x != '!' && x != '=' && x != '/' && x != '#' && x != ',') ) \ | ||||
457 | (isalnum(x) || (ispunct(x) && x != '(' && x != ')' && \ | ||||
458 | x != '{' && x != '}' && x != '<' && x != '>' && \ | ||||
459 | x != '!' && x != '=' && x != '/' && x != '#' && \ | ||||
460 | x != ',')) | ||||
461 | |||||
462 | if (isalnum(c) || c == ':' || c == '_' || c == '*') { | ||||
463 | do { | ||||
464 | *p++ = c; | ||||
465 | if ((size_t)(p-buf) >= sizeof(buf)) { | ||||
466 | yyerror("string too long"); | ||||
467 | return (findeol()); | ||||
468 | } | ||||
469 | } while ((c = lgetc(0)) != EOF(-1) && (allowed_in_string(c)(isalnum(c) || (ispunct(c) && c != '(' && c != ')' && c != '{' && c != '}' && c != '<' && c != '>' && c != '!' && c != '=' && c != '/' && c != '#' && c != ',') ))); | ||||
470 | lungetc(c); | ||||
471 | *p = '\0'; | ||||
472 | if ((token = lookup(buf)) == STRING260) | ||||
473 | if ((yylval.v.string = strdup(buf)) == NULL((void *)0)) | ||||
474 | err(1, "%s", __func__); | ||||
475 | return (token); | ||||
476 | } | ||||
477 | if (c == '\n') { | ||||
478 | yylval.lineno = file->lineno; | ||||
479 | file->lineno++; | ||||
480 | } | ||||
481 | if (c == EOF(-1)) | ||||
482 | return (0); | ||||
483 | return (c); | ||||
484 | } | ||||
485 | |||||
486 | struct file * | ||||
487 | pushfile(const char *name) | ||||
488 | { | ||||
489 | struct file *nfile; | ||||
490 | |||||
491 | if ((nfile = calloc(1, sizeof(struct file))) == NULL((void *)0)) | ||||
492 | return (NULL((void *)0)); | ||||
493 | if ((nfile->name = strdup(name)) == NULL((void *)0)) { | ||||
494 | free(nfile); | ||||
495 | return (NULL((void *)0)); | ||||
496 | } | ||||
497 | if ((nfile->stream = fopen(nfile->name, "r")) == NULL((void *)0)) { | ||||
498 | free(nfile->name); | ||||
499 | free(nfile); | ||||
500 | return (NULL((void *)0)); | ||||
501 | } | ||||
502 | nfile->lineno = 1; | ||||
503 | TAILQ_INSERT_TAIL(&files, nfile, entry)do { (nfile)->entry.tqe_next = ((void *)0); (nfile)->entry .tqe_prev = (&files)->tqh_last; *(&files)->tqh_last = (nfile); (&files)->tqh_last = &(nfile)->entry .tqe_next; } while (0); | ||||
504 | return (nfile); | ||||
505 | } | ||||
506 | |||||
507 | int | ||||
508 | popfile(void) | ||||
509 | { | ||||
510 | struct file *prev; | ||||
511 | |||||
512 | if ((prev = TAILQ_PREV(file, files, entry)(*(((struct files *)((file)->entry.tqe_prev))->tqh_last ))) != NULL((void *)0)) | ||||
513 | prev->errors += file->errors; | ||||
514 | |||||
515 | TAILQ_REMOVE(&files, file, entry)do { if (((file)->entry.tqe_next) != ((void *)0)) (file)-> entry.tqe_next->entry.tqe_prev = (file)->entry.tqe_prev ; else (&files)->tqh_last = (file)->entry.tqe_prev; *(file)->entry.tqe_prev = (file)->entry.tqe_next; ; ; } while (0); | ||||
516 | fclose(file->stream); | ||||
517 | free(file->name); | ||||
518 | free(file); | ||||
519 | file = prev; | ||||
520 | return (file ? 0 : EOF(-1)); | ||||
521 | } | ||||
522 | |||||
523 | char * | ||||
524 | parse_tapedev(const char *filename, const char *changer, int drive) | ||||
525 | { | ||||
526 | struct changer *p; | ||||
527 | char *tapedev = NULL((void *)0); | ||||
528 | int errors = 0; | ||||
529 | |||||
530 | TAILQ_INIT(&changers)do { (&changers)->tqh_first = ((void *)0); (&changers )->tqh_last = &(&changers)->tqh_first; } while ( 0); | ||||
| |||||
531 | |||||
532 | if ((file = pushfile(filename)) == NULL((void *)0)) { | ||||
533 | warnx("cannot open the main config file!"); | ||||
534 | goto guess; | ||||
535 | } | ||||
536 | topfile = file; | ||||
537 | |||||
538 | yyparse(); | ||||
539 | errors = file->errors; | ||||
540 | popfile(); | ||||
541 | |||||
542 | if (strncmp(changer, _PATH_DEV"/dev/", sizeof(_PATH_DEV"/dev/") - 1) == 0) | ||||
543 | changer += sizeof(_PATH_DEV"/dev/") - 1; | ||||
544 | TAILQ_FOREACH(p, &changers, entry)for((p) = ((&changers)->tqh_first); (p) != ((void *)0) ; (p) = ((p)->entry.tqe_next)) { | ||||
545 | if (strcmp(changer, p->name) == 0) { | ||||
546 | if (drive >= 0 && drive < p->drivecnt) { | ||||
547 | if (asprintf(&tapedev, _PATH_DEV"/dev/" "%s", | ||||
548 | p->drives[drive]) == -1) | ||||
549 | errx(1, "malloc failed"); | ||||
550 | } else | ||||
551 | tapedev = NULL((void *)0); | ||||
552 | } | ||||
553 | } | ||||
554 | |||||
555 | guess: | ||||
556 | /* if no device found, do the default of /dev/rstX */ | ||||
557 | if (tapedev == NULL((void *)0)) | ||||
558 | if (asprintf(&tapedev, "/dev/rst%d", drive) == -1) | ||||
559 | errx(1, "malloc failed"); | ||||
560 | return (tapedev); | ||||
561 | } | ||||
562 | |||||
563 | struct changer * | ||||
564 | new_changer(char *name) | ||||
565 | { | ||||
566 | struct changer *p; | ||||
567 | |||||
568 | if ((p = calloc(1, sizeof(*p))) == NULL((void *)0)) | ||||
569 | err(1, NULL((void *)0)); | ||||
570 | |||||
571 | if ((p->name = strdup(name)) == NULL((void *)0)) | ||||
572 | err(1, NULL((void *)0)); | ||||
573 | |||||
574 | return (p); | ||||
575 | } | ||||
576 | |||||
577 | |||||
578 | #line 571 "parse.c" | ||||
579 | /* allocate initial stack or double stack size, up to YYMAXDEPTH */ | ||||
580 | static int yygrowstack(void) | ||||
581 | { | ||||
582 | unsigned int newsize; | ||||
583 | long sslen; | ||||
584 | short *newss; | ||||
585 | YYSTYPE *newvs; | ||||
586 | |||||
587 | if ((newsize = yystacksize) == 0) | ||||
588 | newsize = YYINITSTACKSIZE200; | ||||
589 | else if (newsize >= YYMAXDEPTH10000) | ||||
590 | return -1; | ||||
591 | else if ((newsize *= 2) > YYMAXDEPTH10000) | ||||
592 | newsize = YYMAXDEPTH10000; | ||||
593 | sslen = yyssp - yyss; | ||||
594 | #ifdef SIZE_MAX | ||||
595 | #define YY_SIZE_MAX0xffffffffU SIZE_MAX | ||||
596 | #else | ||||
597 | #define YY_SIZE_MAX0xffffffffU 0xffffffffU | ||||
598 | #endif | ||||
599 | if (newsize && YY_SIZE_MAX0xffffffffU / newsize < sizeof *newss) | ||||
600 | goto bail; | ||||
601 | newss = (short *)realloc(yyss, newsize * sizeof *newss); | ||||
602 | if (newss == NULL((void *)0)) | ||||
603 | goto bail; | ||||
604 | yyss = newss; | ||||
605 | yyssp = newss + sslen; | ||||
606 | if (newsize
| ||||
607 | goto bail; | ||||
608 | newvs = (YYSTYPE *)realloc(yyvs, newsize * sizeof *newvs); | ||||
609 | if (newvs == NULL((void *)0)) | ||||
610 | goto bail; | ||||
611 | yyvs = newvs; | ||||
612 | yyvsp = newvs + sslen; | ||||
613 | yystacksize = newsize; | ||||
614 | yysslim = yyss + newsize - 1; | ||||
615 | return 0; | ||||
616 | bail: | ||||
617 | if (yyss) | ||||
618 | free(yyss); | ||||
619 | if (yyvs) | ||||
620 | free(yyvs); | ||||
621 | yyss = yyssp = NULL((void *)0); | ||||
622 | yyvs = yyvsp = NULL((void *)0); | ||||
623 | yystacksize = 0; | ||||
624 | return -1; | ||||
625 | } | ||||
626 | |||||
627 | #define YYABORTgoto yyabort goto yyabort | ||||
628 | #define YYREJECTgoto yyabort goto yyabort | ||||
629 | #define YYACCEPTgoto yyaccept goto yyaccept | ||||
630 | #define YYERRORgoto yyerrlab goto yyerrlab | ||||
631 | int | ||||
632 | yyparse(void) | ||||
633 | { | ||||
634 | int yym, yyn, yystate; | ||||
635 | #if YYDEBUG0 | ||||
636 | const char *yys; | ||||
637 | |||||
638 | if ((yys = getenv("YYDEBUG"))) | ||||
639 | { | ||||
640 | yyn = *yys; | ||||
641 | if (yyn >= '0' && yyn <= '9') | ||||
642 | yydebug = yyn - '0'; | ||||
643 | } | ||||
644 | #endif /* YYDEBUG */ | ||||
645 | |||||
646 | yynerrs = 0; | ||||
647 | yyerrflag = 0; | ||||
648 | yychar = (-1); | ||||
649 | |||||
650 | if (yyss == NULL((void *)0) && yygrowstack()) goto yyoverflow; | ||||
651 | yyssp = yyss; | ||||
652 | yyvsp = yyvs; | ||||
653 | *yyssp = yystate = 0; | ||||
654 | |||||
655 | yyloop: | ||||
656 | if ((yyn = yydefred[yystate]) != 0) goto yyreduce; | ||||
657 | if (yychar
| ||||
658 | { | ||||
659 | if ((yychar = yylex()) < 0) yychar = 0; | ||||
660 | #if YYDEBUG0 | ||||
661 | if (yydebug) | ||||
662 | { | ||||
663 | yys = 0; | ||||
664 | if (yychar <= YYMAXTOKEN261) yys = yyname[yychar]; | ||||
665 | if (!yys) yys = "illegal-symbol"; | ||||
666 | printf("%sdebug: state %d, reading %d (%s)\n", | ||||
667 | YYPREFIX"yy", yystate, yychar, yys); | ||||
668 | } | ||||
669 | #endif | ||||
670 | } | ||||
671 | if ((yyn = yysindex[yystate]) && (yyn += yychar) >= 0 && | ||||
672 | yyn <= YYTABLESIZE247 && yycheck[yyn] == yychar) | ||||
673 | { | ||||
674 | #if YYDEBUG0 | ||||
675 | if (yydebug) | ||||
676 | printf("%sdebug: state %d, shifting to state %d\n", | ||||
677 | YYPREFIX"yy", yystate, yytable[yyn]); | ||||
678 | #endif | ||||
679 | if (yyssp >= yysslim && yygrowstack()) | ||||
680 | { | ||||
681 | goto yyoverflow; | ||||
682 | } | ||||
683 | *++yyssp = yystate = yytable[yyn]; | ||||
684 | *++yyvsp = yylval; | ||||
685 | yychar = (-1); | ||||
686 | if (yyerrflag > 0) --yyerrflag; | ||||
687 | goto yyloop; | ||||
688 | } | ||||
689 | if ((yyn = yyrindex[yystate]) && (yyn += yychar) >= 0 && | ||||
690 | yyn <= YYTABLESIZE247 && yycheck[yyn] == yychar) | ||||
691 | { | ||||
692 | yyn = yytable[yyn]; | ||||
693 | goto yyreduce; | ||||
694 | } | ||||
695 | if (yyerrflag
| ||||
696 | #if defined(__GNUC__4) | ||||
697 | goto yynewerror; | ||||
698 | #endif | ||||
699 | yynewerror: | ||||
700 | yyerror("syntax error"); | ||||
701 | #if defined(__GNUC__4) | ||||
702 | goto yyerrlab; | ||||
703 | #endif | ||||
704 | yyerrlab: | ||||
705 | ++yynerrs; | ||||
706 | yyinrecovery: | ||||
707 | if (yyerrflag < 3) | ||||
708 | { | ||||
709 | yyerrflag = 3; | ||||
710 | for (;;) | ||||
711 | { | ||||
712 | if ((yyn = yysindex[*yyssp]) && (yyn += YYERRCODE256) >= 0 && | ||||
713 | yyn <= YYTABLESIZE247 && yycheck[yyn] == YYERRCODE256) | ||||
714 | { | ||||
715 | #if YYDEBUG0 | ||||
716 | if (yydebug) | ||||
717 | printf("%sdebug: state %d, error recovery shifting\ | ||||
718 | to state %d\n", YYPREFIX"yy", *yyssp, yytable[yyn]); | ||||
719 | #endif | ||||
720 | if (yyssp >= yysslim && yygrowstack()) | ||||
721 | { | ||||
722 | goto yyoverflow; | ||||
723 | } | ||||
724 | *++yyssp = yystate = yytable[yyn]; | ||||
| |||||
725 | *++yyvsp = yylval; | ||||
726 | goto yyloop; | ||||
727 | } | ||||
728 | else | ||||
729 | { | ||||
730 | #if YYDEBUG0 | ||||
731 | if (yydebug) | ||||
732 | printf("%sdebug: error recovery discarding state %d\n", | ||||
733 | YYPREFIX"yy", *yyssp); | ||||
734 | #endif | ||||
735 | if (yyssp <= yyss) goto yyabort; | ||||
736 | --yyssp; | ||||
737 | --yyvsp; | ||||
738 | } | ||||
739 | } | ||||
740 | } | ||||
741 | else | ||||
742 | { | ||||
743 | if (yychar == 0) goto yyabort; | ||||
744 | #if YYDEBUG0 | ||||
745 | if (yydebug) | ||||
746 | { | ||||
747 | yys = 0; | ||||
748 | if (yychar <= YYMAXTOKEN261) yys = yyname[yychar]; | ||||
749 | if (!yys) yys = "illegal-symbol"; | ||||
750 | printf("%sdebug: state %d, error recovery discards token %d (%s)\n", | ||||
751 | YYPREFIX"yy", yystate, yychar, yys); | ||||
752 | } | ||||
753 | #endif | ||||
754 | yychar = (-1); | ||||
755 | goto yyloop; | ||||
756 | } | ||||
757 | yyreduce: | ||||
758 | #if YYDEBUG0 | ||||
759 | if (yydebug) | ||||
760 | printf("%sdebug: state %d, reducing by rule %d (%s)\n", | ||||
761 | YYPREFIX"yy", yystate, yyn, yyrule[yyn]); | ||||
762 | #endif | ||||
763 | yym = yylen[yyn]; | ||||
764 | if (yym
| ||||
765 | yyval = yyvsp[1-yym]; | ||||
766 | else | ||||
767 | memset(&yyval, 0, sizeof yyval); | ||||
768 | switch (yyn) | ||||
769 | { | ||||
770 | case 4: | ||||
771 | #line 89 "/usr/src/bin/chio/parse.y" | ||||
772 | { file->errors++; } | ||||
773 | break; | ||||
774 | case 8: | ||||
775 | #line 99 "/usr/src/bin/chio/parse.y" | ||||
776 | { | ||||
777 | curchanger = new_changer(yyvsp[-3].v.string); | ||||
778 | } | ||||
779 | break; | ||||
780 | case 9: | ||||
781 | #line 102 "/usr/src/bin/chio/parse.y" | ||||
782 | { | ||||
783 | TAILQ_INSERT_TAIL(&changers, curchanger, entry)do { (curchanger)->entry.tqe_next = ((void *)0); (curchanger )->entry.tqe_prev = (&changers)->tqh_last; *(&changers )->tqh_last = (curchanger); (&changers)->tqh_last = &(curchanger)->entry.tqe_next; } while (0); | ||||
784 | curchanger = NULL((void *)0); | ||||
785 | } | ||||
786 | break; | ||||
787 | case 14: | ||||
788 | #line 116 "/usr/src/bin/chio/parse.y" | ||||
789 | { | ||||
790 | void *newp; | ||||
791 | |||||
792 | if ((newp = reallocarray(curchanger->drives, | ||||
793 | curchanger->drivecnt + 1, | ||||
794 | sizeof(curchanger->drives))) == NULL((void *)0)) | ||||
795 | err(1, NULL((void *)0)); | ||||
796 | curchanger->drives = newp; | ||||
797 | if ((curchanger->drives[curchanger->drivecnt] = | ||||
798 | strdup(yyvsp[0].v.string)) == NULL((void *)0)) | ||||
799 | err(1, NULL((void *)0)); | ||||
800 | curchanger->drivecnt++; | ||||
801 | free(yyvsp[0].v.string); | ||||
802 | } | ||||
803 | break; | ||||
804 | #line 797 "parse.c" | ||||
805 | } | ||||
806 | yyssp -= yym; | ||||
807 | yystate = *yyssp; | ||||
808 | yyvsp -= yym; | ||||
809 | yym = yylhs[yyn]; | ||||
810 | if (yystate
| ||||
811 | { | ||||
812 | #if YYDEBUG0 | ||||
813 | if (yydebug) | ||||
814 | printf("%sdebug: after reduction, shifting from state 0 to\ | ||||
815 | state %d\n", YYPREFIX"yy", YYFINAL1); | ||||
816 | #endif | ||||
817 | yystate = YYFINAL1; | ||||
818 | *++yyssp = YYFINAL1; | ||||
819 | *++yyvsp = yyval; | ||||
820 | if (yychar
| ||||
821 | { | ||||
822 | if ((yychar = yylex()) < 0) yychar = 0; | ||||
823 | #if YYDEBUG0 | ||||
824 | if (yydebug) | ||||
825 | { | ||||
826 | yys = 0; | ||||
827 | if (yychar <= YYMAXTOKEN261) yys = yyname[yychar]; | ||||
828 | if (!yys) yys = "illegal-symbol"; | ||||
829 | printf("%sdebug: state %d, reading %d (%s)\n", | ||||
830 | YYPREFIX"yy", YYFINAL1, yychar, yys); | ||||
831 | } | ||||
832 | #endif | ||||
833 | } | ||||
834 | if (yychar == 0) goto yyaccept; | ||||
835 | goto yyloop; | ||||
836 | } | ||||
837 | if ((yyn = yygindex[yym]) && (yyn += yystate) >= 0 && | ||||
838 | yyn <= YYTABLESIZE247 && yycheck[yyn] == yystate) | ||||
839 | yystate = yytable[yyn]; | ||||
840 | else | ||||
841 | yystate = yydgoto[yym]; | ||||
842 | #if YYDEBUG0 | ||||
843 | if (yydebug) | ||||
844 | printf("%sdebug: after reduction, shifting from state %d \ | ||||
845 | to state %d\n", YYPREFIX"yy", *yyssp, yystate); | ||||
846 | #endif | ||||
847 | if (yyssp >= yysslim && yygrowstack()) | ||||
848 | { | ||||
849 | goto yyoverflow; | ||||
850 | } | ||||
851 | *++yyssp = yystate; | ||||
852 | *++yyvsp = yyval; | ||||
853 | goto yyloop; | ||||
854 | yyoverflow: | ||||
855 | yyerror("yacc stack overflow"); | ||||
856 | yyabort: | ||||
857 | if (yyss) | ||||
858 | free(yyss); | ||||
859 | if (yyvs) | ||||
860 | free(yyvs); | ||||
861 | yyss = yyssp = NULL((void *)0); | ||||
862 | yyvs = yyvsp = NULL((void *)0); | ||||
863 | yystacksize = 0; | ||||
864 | return (1); | ||||
865 | yyaccept: | ||||
866 | if (yyss) | ||||
867 | free(yyss); | ||||
868 | if (yyvs) | ||||
869 | free(yyvs); | ||||
870 | yyss = yyssp = NULL((void *)0); | ||||
871 | yyvs = yyvsp = NULL((void *)0); | ||||
872 | yystacksize = 0; | ||||
873 | return (0); | ||||
874 | } |