File: | src/sbin/dhcpleased/obj/parse.c |
Warning: | line 1070, column 10 Use of memory after it is freed |
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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 26 "/usr/src/sbin/dhcpleased/parse.y" | ||||
13 | #include <sys/types.h> | ||||
14 | #include <sys/queue.h> | ||||
15 | #include <sys/socket.h> | ||||
16 | #include <sys/stat.h> | ||||
17 | |||||
18 | #include <net/if.h> | ||||
19 | |||||
20 | #include <netinet/in.h> | ||||
21 | #include <netinet/if_ether.h> | ||||
22 | |||||
23 | #include <arpa/inet.h> | ||||
24 | |||||
25 | #include <ctype.h> | ||||
26 | #include <err.h> | ||||
27 | #include <errno(*__errno()).h> | ||||
28 | #include <event.h> | ||||
29 | #include <imsg.h> | ||||
30 | #include <limits.h> | ||||
31 | #include <stdarg.h> | ||||
32 | #include <stdio.h> | ||||
33 | #include <string.h> | ||||
34 | #include <syslog.h> | ||||
35 | #include <unistd.h> | ||||
36 | #include <vis.h> | ||||
37 | |||||
38 | #include "log.h" | ||||
39 | #include "dhcpleased.h" | ||||
40 | #include "frontend.h" | ||||
41 | |||||
42 | TAILQ_HEAD(files, file)struct files { struct file *tqh_first; struct file **tqh_last ; } files = TAILQ_HEAD_INITIALIZER(files){ ((void *)0), &(files).tqh_first }; | ||||
43 | static struct file { | ||||
44 | TAILQ_ENTRY(file)struct { struct file *tqe_next; struct file **tqe_prev; } entry; | ||||
45 | FILE *stream; | ||||
46 | char *name; | ||||
47 | size_t ungetpos; | ||||
48 | size_t ungetsize; | ||||
49 | u_char *ungetbuf; | ||||
50 | int eof_reached; | ||||
51 | int lineno; | ||||
52 | int errors; | ||||
53 | } *file, *topfile; | ||||
54 | struct file *pushfile(const char *, int); | ||||
55 | int popfile(void); | ||||
56 | int check_file_secrecy(int, const char *); | ||||
57 | int yyparse(void); | ||||
58 | int yylex(void); | ||||
59 | int yyerror(const char *, ...) | ||||
60 | __attribute__((__format__ (printf, 1, 2))) | ||||
61 | __attribute__((__nonnull__ (1))); | ||||
62 | int kw_cmp(const void *, const void *); | ||||
63 | int lookup(char *); | ||||
64 | int igetc(void); | ||||
65 | int lgetc(int); | ||||
66 | void lungetc(int); | ||||
67 | int findeol(void); | ||||
68 | |||||
69 | TAILQ_HEAD(symhead, sym)struct symhead { struct sym *tqh_first; struct sym **tqh_last ; } symhead = TAILQ_HEAD_INITIALIZER(symhead){ ((void *)0), &(symhead).tqh_first }; | ||||
70 | struct sym { | ||||
71 | TAILQ_ENTRY(sym)struct { struct sym *tqe_next; struct sym **tqe_prev; } entry; | ||||
72 | int used; | ||||
73 | int persist; | ||||
74 | char *nam; | ||||
75 | char *val; | ||||
76 | }; | ||||
77 | |||||
78 | int symset(const char *, const char *, int); | ||||
79 | char *symget(const char *); | ||||
80 | |||||
81 | static struct dhcpleased_conf *conf; | ||||
82 | static int errors; | ||||
83 | |||||
84 | static struct iface_conf *iface_conf; | ||||
85 | |||||
86 | struct iface_conf *conf_get_iface(char *); | ||||
87 | |||||
88 | typedef struct { | ||||
89 | union { | ||||
90 | int64_t number; | ||||
91 | char *string; | ||||
92 | } v; | ||||
93 | int lineno; | ||||
94 | } YYSTYPE; | ||||
95 | |||||
96 | #line 97 "parse.c" | ||||
97 | #define DHCP_IFACE257 257 | ||||
98 | #define ERROR258 258 | ||||
99 | #define SEND259 259 | ||||
100 | #define VENDOR260 260 | ||||
101 | #define CLASS261 261 | ||||
102 | #define ID262 262 | ||||
103 | #define CLIENT263 263 | ||||
104 | #define IGNORE264 264 | ||||
105 | #define DNS265 265 | ||||
106 | #define ROUTES266 266 | ||||
107 | #define HOST267 267 | ||||
108 | #define NAME268 268 | ||||
109 | #define NO269 269 | ||||
110 | #define STRING270 270 | ||||
111 | #define NUMBER271 271 | ||||
112 | #define YYERRCODE256 256 | ||||
113 | const short yylhs[] = | ||||
114 | { -1, | ||||
115 | 0, 0, 0, 0, 0, 1, 1, 2, 4, 4, | ||||
116 | 5, 6, 3, 7, 7, 8, 8, 9, 9, 9, | ||||
117 | 9, 9, 9, 9, | ||||
118 | }; | ||||
119 | const short yylen[] = | ||||
120 | { 2, | ||||
121 | 0, 2, 3, 3, 3, 2, 1, 3, 2, 0, | ||||
122 | 2, 0, 6, 2, 1, 3, 2, 5, 4, 4, | ||||
123 | 4, 2, 2, 2, | ||||
124 | }; | ||||
125 | const short yydefred[] = | ||||
126 | { 1, | ||||
127 | 0, 0, 0, 0, 2, 0, 0, 5, 12, 0, | ||||
128 | 3, 4, 0, 7, 0, 0, 6, 0, 0, 0, | ||||
129 | 9, 0, 0, 0, 0, 13, 0, 0, 0, 0, | ||||
130 | 23, 22, 24, 0, 17, 0, 0, 0, 0, 0, | ||||
131 | 16, 0, 19, 20, 21, 11, 18, | ||||
132 | }; | ||||
133 | const short yydgoto[] = | ||||
134 | { 1, | ||||
135 | 15, 6, 7, 19, 41, 13, 20, 24, 25, | ||||
136 | }; | ||||
137 | const short yysindex[] = | ||||
138 | { 0, | ||||
139 | -10, -6, -265, -54, 0, -2, 5, 0, 0, -253, | ||||
140 | 0, 0, -104, 0, -250, 11, 0, 11, -248, -103, | ||||
141 | 0, -257, -252, -248, 11, 0, -238, -237, -242, -240, | ||||
142 | 0, 0, 0, 18, 0, -233, -239, -236, -235, 11, | ||||
143 | 0, -234, 0, 0, 0, 0, 0,}; | ||||
144 | const short yyrindex[] = | ||||
145 | { 0, | ||||
146 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
147 | 0, 0, 0, 0, -6, -124, 0, -124, -95, 0, | ||||
148 | 0, 0, 0, -93, -124, 0, 0, 0, 0, 0, | ||||
149 | 0, 0, 0, 0, 0, 0, 0, 0, 0, -124, | ||||
150 | 0, 0, 0, 0, 0, 0, 0,}; | ||||
151 | const short yygindex[] = | ||||
152 | { 0, | ||||
153 | 0, 0, 0, -16, 0, 0, 0, 0, 13, | ||||
154 | }; | ||||
155 | #define YYTABLESIZE260 260 | ||||
156 | const short yytable[] = | ||||
157 | { 5, | ||||
158 | 10, 21, 27, 8, 9, 28, 10, 11, 35, 29, | ||||
159 | 22, 30, 31, 32, 12, 23, 14, 33, 16, 17, | ||||
160 | 18, 26, 36, 46, 37, 38, 39, 40, 42, 15, | ||||
161 | 43, 14, 45, 44, 0, 47, 34, 0, 0, 0, | ||||
162 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
163 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
164 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
165 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
166 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
167 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
168 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
169 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
170 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
171 | 0, 0, 0, 0, 10, 0, 0, 0, 0, 10, | ||||
172 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
173 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
174 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
175 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
176 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
177 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
178 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
179 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
180 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
181 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||||
182 | 0, 0, 0, 0, 0, 2, 3, 0, 0, 0, | ||||
183 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, | ||||
184 | }; | ||||
185 | const short yycheck[] = | ||||
186 | { 10, | ||||
187 | 125, 18, 260, 10, 270, 263, 61, 10, 25, 267, | ||||
188 | 259, 269, 265, 266, 10, 264, 270, 270, 123, 270, | ||||
189 | 10, 125, 261, 40, 262, 268, 267, 10, 262, 125, | ||||
190 | 270, 125, 268, 270, -1, 270, 24, -1, -1, -1, | ||||
191 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
192 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
193 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
194 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
195 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
196 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
197 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
198 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
199 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
200 | -1, -1, -1, -1, 259, -1, -1, -1, -1, 264, | ||||
201 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
202 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
203 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
204 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
205 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
206 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
207 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
208 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
209 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
210 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | ||||
211 | -1, -1, -1, -1, -1, 256, 257, -1, -1, -1, | ||||
212 | -1, -1, -1, -1, -1, -1, -1, -1, -1, 270, | ||||
213 | }; | ||||
214 | #define YYFINAL1 1 | ||||
215 | #ifndef YYDEBUG0 | ||||
216 | #define YYDEBUG0 0 | ||||
217 | #endif | ||||
218 | #define YYMAXTOKEN271 271 | ||||
219 | #if YYDEBUG0 | ||||
220 | const char * const yyname[] = | ||||
221 | { | ||||
222 | "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, | ||||
223 | 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, | ||||
224 | 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, | ||||
225 | 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, | ||||
226 | 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, | ||||
227 | 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, | ||||
228 | 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,"DHCP_IFACE", | ||||
229 | "ERROR","SEND","VENDOR","CLASS","ID","CLIENT","IGNORE","DNS","ROUTES","HOST", | ||||
230 | "NAME","NO","STRING","NUMBER", | ||||
231 | }; | ||||
232 | const char * const yyrule[] = | ||||
233 | {"$accept : grammar", | ||||
234 | "grammar :", | ||||
235 | "grammar : grammar '\\n'", | ||||
236 | "grammar : grammar varset '\\n'", | ||||
237 | "grammar : grammar dhcp_iface '\\n'", | ||||
238 | "grammar : grammar error '\\n'", | ||||
239 | "string : string STRING", | ||||
240 | "string : STRING", | ||||
241 | "varset : STRING '=' string", | ||||
242 | "optnl : '\\n' optnl", | ||||
243 | "optnl :", | ||||
244 | "nl : '\\n' optnl", | ||||
245 | "$$1 :", | ||||
246 | "dhcp_iface : DHCP_IFACE STRING $$1 '{' iface_block '}'", | ||||
247 | "iface_block : optnl ifaceopts_l", | ||||
248 | "iface_block : optnl", | ||||
249 | "ifaceopts_l : ifaceopts_l ifaceoptsl nl", | ||||
250 | "ifaceopts_l : ifaceoptsl optnl", | ||||
251 | "ifaceoptsl : SEND VENDOR CLASS ID STRING", | ||||
252 | "ifaceoptsl : SEND CLIENT ID STRING", | ||||
253 | "ifaceoptsl : SEND HOST NAME STRING", | ||||
254 | "ifaceoptsl : SEND NO HOST NAME", | ||||
255 | "ifaceoptsl : IGNORE ROUTES", | ||||
256 | "ifaceoptsl : IGNORE DNS", | ||||
257 | "ifaceoptsl : IGNORE STRING", | ||||
258 | }; | ||||
259 | #endif | ||||
260 | #ifdef YYSTACKSIZE10000 | ||||
261 | #undef YYMAXDEPTH10000 | ||||
262 | #define YYMAXDEPTH10000 YYSTACKSIZE10000 | ||||
263 | #else | ||||
264 | #ifdef YYMAXDEPTH10000 | ||||
265 | #define YYSTACKSIZE10000 YYMAXDEPTH10000 | ||||
266 | #else | ||||
267 | #define YYSTACKSIZE10000 10000 | ||||
268 | #define YYMAXDEPTH10000 10000 | ||||
269 | #endif | ||||
270 | #endif | ||||
271 | #define YYINITSTACKSIZE200 200 | ||||
272 | /* LINTUSED */ | ||||
273 | int yydebug; | ||||
274 | int yynerrs; | ||||
275 | int yyerrflag; | ||||
276 | int yychar; | ||||
277 | short *yyssp; | ||||
278 | YYSTYPE *yyvsp; | ||||
279 | YYSTYPE yyval; | ||||
280 | YYSTYPE yylval; | ||||
281 | short *yyss; | ||||
282 | short *yysslim; | ||||
283 | YYSTYPE *yyvs; | ||||
284 | unsigned int yystacksize; | ||||
285 | int yyparse(void); | ||||
286 | #line 329 "/usr/src/sbin/dhcpleased/parse.y" | ||||
287 | |||||
288 | struct keywords { | ||||
289 | const char *k_name; | ||||
290 | int k_val; | ||||
291 | }; | ||||
292 | |||||
293 | int | ||||
294 | yyerror(const char *fmt, ...) | ||||
295 | { | ||||
296 | va_list ap; | ||||
297 | char *msg; | ||||
298 | |||||
299 | file->errors++; | ||||
300 | va_start(ap, fmt)__builtin_va_start(ap, fmt); | ||||
301 | if (vasprintf(&msg, fmt, ap) == -1) | ||||
302 | fatalx("yyerror vasprintf"); | ||||
303 | va_end(ap)__builtin_va_end(ap); | ||||
304 | logit(LOG_CRIT2, "%s:%d: %s", file->name, yylval.lineno, msg); | ||||
305 | free(msg); | ||||
306 | return (0); | ||||
307 | } | ||||
308 | |||||
309 | int | ||||
310 | kw_cmp(const void *k, const void *e) | ||||
311 | { | ||||
312 | return (strcmp(k, ((const struct keywords *)e)->k_name)); | ||||
313 | } | ||||
314 | |||||
315 | int | ||||
316 | lookup(char *s) | ||||
317 | { | ||||
318 | /* This has to be sorted always. */ | ||||
319 | static const struct keywords keywords[] = { | ||||
320 | {"class", CLASS261}, | ||||
321 | {"client", CLIENT263}, | ||||
322 | {"dns", DNS265}, | ||||
323 | {"host", HOST267}, | ||||
324 | {"id", ID262}, | ||||
325 | {"ignore", IGNORE264}, | ||||
326 | {"interface", DHCP_IFACE257}, | ||||
327 | {"name", NAME268}, | ||||
328 | {"no", NO269}, | ||||
329 | {"routes", ROUTES266}, | ||||
330 | {"send", SEND259}, | ||||
331 | {"vendor", VENDOR260}, | ||||
332 | }; | ||||
333 | const struct keywords *p; | ||||
334 | |||||
335 | p = bsearch(s, keywords, sizeof(keywords)/sizeof(keywords[0]), | ||||
336 | sizeof(keywords[0]), kw_cmp); | ||||
337 | |||||
338 | if (p) | ||||
339 | return (p->k_val); | ||||
340 | else | ||||
341 | return (STRING270); | ||||
342 | } | ||||
343 | |||||
344 | #define START_EXPAND1 1 | ||||
345 | #define DONE_EXPAND2 2 | ||||
346 | |||||
347 | static int expanding; | ||||
348 | |||||
349 | int | ||||
350 | igetc(void) | ||||
351 | { | ||||
352 | int c; | ||||
353 | |||||
354 | while (1) { | ||||
355 | if (file->ungetpos > 0) | ||||
356 | c = file->ungetbuf[--file->ungetpos]; | ||||
357 | else | ||||
358 | c = getc(file->stream)(!__isthreaded ? (--(file->stream)->_r < 0 ? __srget (file->stream) : (int)(*(file->stream)->_p++)) : (getc )(file->stream)); | ||||
359 | |||||
360 | if (c == START_EXPAND1) | ||||
361 | expanding = 1; | ||||
362 | else if (c == DONE_EXPAND2) | ||||
363 | expanding = 0; | ||||
364 | else | ||||
365 | break; | ||||
366 | } | ||||
367 | return (c); | ||||
368 | } | ||||
369 | |||||
370 | int | ||||
371 | lgetc(int quotec) | ||||
372 | { | ||||
373 | int c, next; | ||||
374 | |||||
375 | if (quotec) { | ||||
376 | if ((c = igetc()) == EOF(-1)) { | ||||
377 | yyerror("reached end of file while parsing " | ||||
378 | "quoted string"); | ||||
379 | if (file == topfile || popfile() == EOF(-1)) | ||||
380 | return (EOF(-1)); | ||||
381 | return (quotec); | ||||
382 | } | ||||
383 | return (c); | ||||
384 | } | ||||
385 | |||||
386 | while ((c = igetc()) == '\\') { | ||||
387 | next = igetc(); | ||||
388 | if (next != '\n') { | ||||
389 | c = next; | ||||
390 | break; | ||||
391 | } | ||||
392 | yylval.lineno = file->lineno; | ||||
393 | file->lineno++; | ||||
394 | } | ||||
395 | |||||
396 | if (c == EOF(-1)) { | ||||
397 | /* | ||||
398 | * Fake EOL when hit EOF for the first time. This gets line | ||||
399 | * count right if last line in included file is syntactically | ||||
400 | * invalid and has no newline. | ||||
401 | */ | ||||
402 | if (file->eof_reached == 0) { | ||||
403 | file->eof_reached = 1; | ||||
404 | return ('\n'); | ||||
405 | } | ||||
406 | while (c == EOF(-1)) { | ||||
407 | if (file == topfile || popfile() == EOF(-1)) | ||||
408 | return (EOF(-1)); | ||||
409 | c = igetc(); | ||||
410 | } | ||||
411 | } | ||||
412 | return (c); | ||||
413 | } | ||||
414 | |||||
415 | void | ||||
416 | lungetc(int c) | ||||
417 | { | ||||
418 | if (c == EOF(-1)) | ||||
419 | return; | ||||
420 | |||||
421 | if (file->ungetpos >= file->ungetsize) { | ||||
422 | void *p = reallocarray(file->ungetbuf, file->ungetsize, 2); | ||||
423 | if (p == NULL((void *)0)) | ||||
424 | err(1, "lungetc"); | ||||
425 | file->ungetbuf = p; | ||||
426 | file->ungetsize *= 2; | ||||
427 | } | ||||
428 | file->ungetbuf[file->ungetpos++] = c; | ||||
429 | } | ||||
430 | |||||
431 | int | ||||
432 | findeol(void) | ||||
433 | { | ||||
434 | int c; | ||||
435 | |||||
436 | /* Skip to either EOF or the first real EOL. */ | ||||
437 | while (1) { | ||||
438 | c = lgetc(0); | ||||
439 | if (c == '\n') { | ||||
440 | file->lineno++; | ||||
441 | break; | ||||
442 | } | ||||
443 | if (c == EOF(-1)) | ||||
444 | break; | ||||
445 | } | ||||
446 | return (ERROR258); | ||||
447 | } | ||||
448 | |||||
449 | int | ||||
450 | yylex(void) | ||||
451 | { | ||||
452 | char buf[8096]; | ||||
453 | char *p, *val; | ||||
454 | int quotec, next, c; | ||||
455 | int token; | ||||
456 | |||||
457 | top: | ||||
458 | p = buf; | ||||
459 | while ((c = lgetc(0)) == ' ' || c == '\t') | ||||
460 | ; /* nothing */ | ||||
461 | |||||
462 | yylval.lineno = file->lineno; | ||||
463 | if (c == '#') | ||||
464 | while ((c = lgetc(0)) != '\n' && c != EOF(-1)) | ||||
465 | ; /* nothing */ | ||||
466 | if (c == '$' && !expanding) { | ||||
467 | while (1) { | ||||
468 | if ((c = lgetc(0)) == EOF(-1)) | ||||
469 | return (0); | ||||
470 | |||||
471 | if (p + 1 >= buf + sizeof(buf) - 1) { | ||||
472 | yyerror("string too long"); | ||||
473 | return (findeol()); | ||||
474 | } | ||||
475 | if (isalnum(c) || c == '_') { | ||||
476 | *p++ = c; | ||||
477 | continue; | ||||
478 | } | ||||
479 | *p = '\0'; | ||||
480 | lungetc(c); | ||||
481 | break; | ||||
482 | } | ||||
483 | val = symget(buf); | ||||
484 | if (val == NULL((void *)0)) { | ||||
485 | yyerror("macro '%s' not defined", buf); | ||||
486 | return (findeol()); | ||||
487 | } | ||||
488 | p = val + strlen(val) - 1; | ||||
489 | lungetc(DONE_EXPAND2); | ||||
490 | while (p >= val) { | ||||
491 | lungetc((unsigned char)*p); | ||||
492 | p--; | ||||
493 | } | ||||
494 | lungetc(START_EXPAND1); | ||||
495 | goto top; | ||||
496 | } | ||||
497 | |||||
498 | switch (c) { | ||||
499 | case '\'': | ||||
500 | case '"': | ||||
501 | quotec = c; | ||||
502 | while (1) { | ||||
503 | if ((c = lgetc(quotec)) == EOF(-1)) | ||||
504 | return (0); | ||||
505 | if (c == '\n') { | ||||
506 | file->lineno++; | ||||
507 | continue; | ||||
508 | } else if (c == '\\') { | ||||
509 | if ((next = lgetc(quotec)) == EOF(-1)) | ||||
510 | return (0); | ||||
511 | if (next == quotec || next == ' ' || | ||||
512 | next == '\t') | ||||
513 | c = next; | ||||
514 | else if (next == '\n') { | ||||
515 | file->lineno++; | ||||
516 | continue; | ||||
517 | } else | ||||
518 | lungetc(next); | ||||
519 | } else if (c == quotec) { | ||||
520 | *p = '\0'; | ||||
521 | break; | ||||
522 | } else if (c == '\0') { | ||||
523 | yyerror("syntax error"); | ||||
524 | return (findeol()); | ||||
525 | } | ||||
526 | if (p + 1 >= buf + sizeof(buf) - 1) { | ||||
527 | yyerror("string too long"); | ||||
528 | return (findeol()); | ||||
529 | } | ||||
530 | *p++ = c; | ||||
531 | } | ||||
532 | yylval.v.string = strdup(buf); | ||||
533 | if (yylval.v.string == NULL((void *)0)) | ||||
534 | err(1, "yylex: strdup"); | ||||
535 | return (STRING270); | ||||
536 | } | ||||
537 | |||||
538 | #define allowed_to_end_number(x)(isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' || x == '=') \ | ||||
539 | (isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' || x == '=') | ||||
540 | |||||
541 | if (c == '-' || isdigit(c)) { | ||||
542 | do { | ||||
543 | *p++ = c; | ||||
544 | if ((size_t)(p-buf) >= sizeof(buf)) { | ||||
545 | yyerror("string too long"); | ||||
546 | return (findeol()); | ||||
547 | } | ||||
548 | } while ((c = lgetc(0)) != EOF(-1) && isdigit(c)); | ||||
549 | lungetc(c); | ||||
550 | if (p == buf + 1 && buf[0] == '-') | ||||
551 | goto nodigits; | ||||
552 | if (c == EOF(-1) || allowed_to_end_number(c)(isspace(c) || c == ')' || c ==',' || c == '/' || c == '}' || c == '=')) { | ||||
553 | const char *errstr = NULL((void *)0); | ||||
554 | |||||
555 | *p = '\0'; | ||||
556 | yylval.v.number = strtonum(buf, LLONG_MIN(-9223372036854775807LL -1LL), | ||||
557 | LLONG_MAX9223372036854775807LL, &errstr); | ||||
558 | if (errstr) { | ||||
559 | yyerror("\"%s\" invalid number: %s", | ||||
560 | buf, errstr); | ||||
561 | return (findeol()); | ||||
562 | } | ||||
563 | return (NUMBER271); | ||||
564 | } else { | ||||
565 | nodigits: | ||||
566 | while (p > buf + 1) | ||||
567 | lungetc((unsigned char)*--p); | ||||
568 | c = (unsigned char)*--p; | ||||
569 | if (c == '-') | ||||
570 | return (c); | ||||
571 | } | ||||
572 | } | ||||
573 | |||||
574 | #define allowed_in_string(x)(isalnum(x) || (ispunct(x) && x != '(' && x != ')' && x != '{' && x != '}' && x != '!' && x != '=' && x != '#' && x != ',') ) \ | ||||
575 | (isalnum(x) || (ispunct(x) && x != '(' && x != ')' && \ | ||||
576 | x != '{' && x != '}' && \ | ||||
577 | x != '!' && x != '=' && x != '#' && \ | ||||
578 | x != ',')) | ||||
579 | |||||
580 | if (isalnum(c) || c == ':' || c == '_') { | ||||
581 | do { | ||||
582 | *p++ = c; | ||||
583 | if ((size_t)(p-buf) >= sizeof(buf)) { | ||||
584 | yyerror("string too long"); | ||||
585 | return (findeol()); | ||||
586 | } | ||||
587 | } while ((c = lgetc(0)) != EOF(-1) && (allowed_in_string(c)(isalnum(c) || (ispunct(c) && c != '(' && c != ')' && c != '{' && c != '}' && c != '!' && c != '=' && c != '#' && c != ',') ))); | ||||
588 | lungetc(c); | ||||
589 | *p = '\0'; | ||||
590 | if ((token = lookup(buf)) == STRING270) | ||||
591 | if ((yylval.v.string = strdup(buf)) == NULL((void *)0)) | ||||
592 | err(1, "yylex: strdup"); | ||||
593 | return (token); | ||||
594 | } | ||||
595 | if (c == '\n') { | ||||
596 | yylval.lineno = file->lineno; | ||||
597 | file->lineno++; | ||||
598 | } | ||||
599 | if (c == EOF(-1)) | ||||
600 | return (0); | ||||
601 | return (c); | ||||
602 | } | ||||
603 | |||||
604 | int | ||||
605 | check_file_secrecy(int fd, const char *fname) | ||||
606 | { | ||||
607 | struct stat st; | ||||
608 | |||||
609 | if (fstat(fd, &st)) { | ||||
610 | log_warn("cannot stat %s", fname); | ||||
611 | return (-1); | ||||
612 | } | ||||
613 | if (st.st_uid != 0 && st.st_uid != getuid()) { | ||||
614 | log_warnx("%s: owner not root or current user", fname); | ||||
615 | return (-1); | ||||
616 | } | ||||
617 | if (st.st_mode & (S_IWGRP0000020 | S_IXGRP0000010 | S_IRWXO0000007)) { | ||||
618 | log_warnx("%s: group writable or world read/writable", fname); | ||||
619 | return (-1); | ||||
620 | } | ||||
621 | return (0); | ||||
622 | } | ||||
623 | |||||
624 | struct file * | ||||
625 | pushfile(const char *name, int secret) | ||||
626 | { | ||||
627 | struct file *nfile; | ||||
628 | |||||
629 | if ((nfile = calloc(1, sizeof(struct file))) == NULL((void *)0)) { | ||||
630 | log_warn("calloc"); | ||||
631 | return (NULL((void *)0)); | ||||
632 | } | ||||
633 | if ((nfile->name = strdup(name)) == NULL((void *)0)) { | ||||
634 | log_warn("strdup"); | ||||
635 | free(nfile); | ||||
636 | return (NULL((void *)0)); | ||||
637 | } | ||||
638 | if ((nfile->stream = fopen(nfile->name, "r")) == NULL((void *)0)) { | ||||
639 | free(nfile->name); | ||||
640 | free(nfile); | ||||
641 | return (NULL((void *)0)); | ||||
642 | } else if (secret && | ||||
643 | check_file_secrecy(fileno(nfile->stream)(!__isthreaded ? ((nfile->stream)->_file) : (fileno)(nfile ->stream)), nfile->name)) { | ||||
644 | fclose(nfile->stream); | ||||
645 | free(nfile->name); | ||||
646 | free(nfile); | ||||
647 | return (NULL((void *)0)); | ||||
648 | } | ||||
649 | nfile->lineno = TAILQ_EMPTY(&files)(((&files)->tqh_first) == ((void *)0)) ? 1 : 0; | ||||
650 | nfile->ungetsize = 16; | ||||
651 | nfile->ungetbuf = malloc(nfile->ungetsize); | ||||
652 | if (nfile->ungetbuf == NULL((void *)0)) { | ||||
653 | log_warn("malloc"); | ||||
654 | fclose(nfile->stream); | ||||
655 | free(nfile->name); | ||||
656 | free(nfile); | ||||
657 | return (NULL((void *)0)); | ||||
658 | } | ||||
659 | 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); | ||||
660 | return (nfile); | ||||
661 | } | ||||
662 | |||||
663 | int | ||||
664 | popfile(void) | ||||
665 | { | ||||
666 | struct file *prev; | ||||
667 | |||||
668 | if ((prev = TAILQ_PREV(file, files, entry)(*(((struct files *)((file)->entry.tqe_prev))->tqh_last ))) != NULL((void *)0)) | ||||
669 | prev->errors += file->errors; | ||||
670 | |||||
671 | 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); | ||||
672 | fclose(file->stream); | ||||
673 | free(file->name); | ||||
674 | free(file->ungetbuf); | ||||
675 | free(file); | ||||
676 | file = prev; | ||||
677 | return (file ? 0 : EOF(-1)); | ||||
678 | } | ||||
679 | |||||
680 | struct dhcpleased_conf * | ||||
681 | parse_config(char *filename) | ||||
682 | { | ||||
683 | struct sym *sym, *next; | ||||
684 | |||||
685 | conf = config_new_empty(); | ||||
686 | |||||
687 | file = pushfile(filename != NULL((void *)0) ? filename : _PATH_CONF_FILE"/etc/dhcpleased.conf", 0); | ||||
688 | if (file == NULL((void *)0)) { | ||||
689 | /* no default config file is fine */ | ||||
690 | if (errno(*__errno()) == ENOENT2 && filename == NULL((void *)0)) | ||||
691 | return (conf); | ||||
692 | log_warn("%s", filename); | ||||
693 | free(conf); | ||||
694 | return (NULL((void *)0)); | ||||
695 | } | ||||
696 | topfile = file; | ||||
697 | |||||
698 | yyparse(); | ||||
699 | errors = file->errors; | ||||
700 | popfile(); | ||||
701 | |||||
702 | /* Free macros and check which have not been used. */ | ||||
703 | TAILQ_FOREACH_SAFE(sym, &symhead, entry, next)for ((sym) = ((&symhead)->tqh_first); (sym) != ((void * )0) && ((next) = ((sym)->entry.tqe_next), 1); (sym ) = (next)) { | ||||
704 | if ((log_getverbose() == 2) && !sym->used) | ||||
705 | fprintf(stderr(&__sF[2]), "warning: macro '%s' not used\n", | ||||
706 | sym->nam); | ||||
707 | if (!sym->persist) { | ||||
708 | free(sym->nam); | ||||
709 | free(sym->val); | ||||
710 | TAILQ_REMOVE(&symhead, sym, entry)do { if (((sym)->entry.tqe_next) != ((void *)0)) (sym)-> entry.tqe_next->entry.tqe_prev = (sym)->entry.tqe_prev; else (&symhead)->tqh_last = (sym)->entry.tqe_prev; *(sym)->entry.tqe_prev = (sym)->entry.tqe_next; ; ; } while (0); | ||||
711 | free(sym); | ||||
712 | } | ||||
713 | } | ||||
714 | |||||
715 | if (errors) { | ||||
716 | config_clear(conf); | ||||
717 | return (NULL((void *)0)); | ||||
718 | } | ||||
719 | |||||
720 | return (conf); | ||||
721 | } | ||||
722 | |||||
723 | int | ||||
724 | symset(const char *nam, const char *val, int persist) | ||||
725 | { | ||||
726 | struct sym *sym; | ||||
727 | |||||
728 | TAILQ_FOREACH(sym, &symhead, entry)for((sym) = ((&symhead)->tqh_first); (sym) != ((void * )0); (sym) = ((sym)->entry.tqe_next)) { | ||||
729 | if (strcmp(nam, sym->nam) == 0) | ||||
730 | break; | ||||
731 | } | ||||
732 | |||||
733 | if (sym != NULL((void *)0)) { | ||||
734 | if (sym->persist == 1) | ||||
735 | return (0); | ||||
736 | else { | ||||
737 | free(sym->nam); | ||||
738 | free(sym->val); | ||||
739 | TAILQ_REMOVE(&symhead, sym, entry)do { if (((sym)->entry.tqe_next) != ((void *)0)) (sym)-> entry.tqe_next->entry.tqe_prev = (sym)->entry.tqe_prev; else (&symhead)->tqh_last = (sym)->entry.tqe_prev; *(sym)->entry.tqe_prev = (sym)->entry.tqe_next; ; ; } while (0); | ||||
740 | free(sym); | ||||
741 | } | ||||
742 | } | ||||
743 | if ((sym = calloc(1, sizeof(*sym))) == NULL((void *)0)) | ||||
744 | return (-1); | ||||
745 | |||||
746 | sym->nam = strdup(nam); | ||||
747 | if (sym->nam == NULL((void *)0)) { | ||||
748 | free(sym); | ||||
749 | return (-1); | ||||
750 | } | ||||
751 | sym->val = strdup(val); | ||||
752 | if (sym->val == NULL((void *)0)) { | ||||
753 | free(sym->nam); | ||||
754 | free(sym); | ||||
755 | return (-1); | ||||
756 | } | ||||
757 | sym->used = 0; | ||||
758 | sym->persist = persist; | ||||
759 | TAILQ_INSERT_TAIL(&symhead, sym, entry)do { (sym)->entry.tqe_next = ((void *)0); (sym)->entry. tqe_prev = (&symhead)->tqh_last; *(&symhead)->tqh_last = (sym); (&symhead)->tqh_last = &(sym)->entry. tqe_next; } while (0); | ||||
760 | return (0); | ||||
761 | } | ||||
762 | |||||
763 | int | ||||
764 | cmdline_symset(char *s) | ||||
765 | { | ||||
766 | char *sym, *val; | ||||
767 | int ret; | ||||
768 | |||||
769 | if ((val = strrchr(s, '=')) == NULL((void *)0)) | ||||
770 | return (-1); | ||||
771 | sym = strndup(s, val - s); | ||||
772 | if (sym == NULL((void *)0)) | ||||
773 | errx(1, "%s: strndup", __func__); | ||||
774 | ret = symset(sym, val + 1, 1); | ||||
775 | free(sym); | ||||
776 | |||||
777 | return (ret); | ||||
778 | } | ||||
779 | |||||
780 | char * | ||||
781 | symget(const char *nam) | ||||
782 | { | ||||
783 | struct sym *sym; | ||||
784 | |||||
785 | TAILQ_FOREACH(sym, &symhead, entry)for((sym) = ((&symhead)->tqh_first); (sym) != ((void * )0); (sym) = ((sym)->entry.tqe_next)) { | ||||
786 | if (strcmp(nam, sym->nam) == 0) { | ||||
787 | sym->used = 1; | ||||
788 | return (sym->val); | ||||
789 | } | ||||
790 | } | ||||
791 | return (NULL((void *)0)); | ||||
792 | } | ||||
793 | |||||
794 | struct iface_conf * | ||||
795 | conf_get_iface(char *name) | ||||
796 | { | ||||
797 | struct iface_conf *iface; | ||||
798 | size_t n; | ||||
799 | |||||
800 | SIMPLEQ_FOREACH(iface, &conf->iface_list, entry)for((iface) = ((&conf->iface_list)->sqh_first); (iface ) != ((void *)0); (iface) = ((iface)->entry.sqe_next)) { | ||||
801 | if (strcmp(name, iface->name) == 0) | ||||
802 | return (iface); | ||||
803 | } | ||||
804 | |||||
805 | iface = calloc(1, sizeof(*iface)); | ||||
806 | if (iface == NULL((void *)0)) | ||||
807 | errx(1, "%s: calloc", __func__); | ||||
808 | n = strlcpy(iface->name, name, sizeof(iface->name)); | ||||
809 | if (n >= sizeof(iface->name)) | ||||
810 | errx(1, "%s: name too long", __func__); | ||||
811 | |||||
812 | |||||
813 | SIMPLEQ_INSERT_TAIL(&conf->iface_list, iface, entry)do { (iface)->entry.sqe_next = ((void *)0); *(&conf-> iface_list)->sqh_last = (iface); (&conf->iface_list )->sqh_last = &(iface)->entry.sqe_next; } while (0); | ||||
814 | |||||
815 | return (iface); | ||||
816 | } | ||||
817 | #line 810 "parse.c" | ||||
818 | /* allocate initial stack or double stack size, up to YYMAXDEPTH */ | ||||
819 | static int yygrowstack(void) | ||||
820 | { | ||||
821 | unsigned int newsize; | ||||
822 | long sslen; | ||||
823 | short *newss; | ||||
824 | YYSTYPE *newvs; | ||||
825 | |||||
826 | if ((newsize = yystacksize) == 0) | ||||
827 | newsize = YYINITSTACKSIZE200; | ||||
828 | else if (newsize >= YYMAXDEPTH10000) | ||||
829 | return -1; | ||||
830 | else if ((newsize *= 2) > YYMAXDEPTH10000) | ||||
831 | newsize = YYMAXDEPTH10000; | ||||
832 | sslen = yyssp - yyss; | ||||
833 | #ifdef SIZE_MAX0xffffffffffffffffUL | ||||
834 | #define YY_SIZE_MAX0xffffffffffffffffUL SIZE_MAX0xffffffffffffffffUL | ||||
835 | #else | ||||
836 | #define YY_SIZE_MAX0xffffffffffffffffUL 0xffffffffU | ||||
837 | #endif | ||||
838 | if (newsize && YY_SIZE_MAX0xffffffffffffffffUL / newsize < sizeof *newss) | ||||
839 | goto bail; | ||||
840 | newss = (short *)realloc(yyss, newsize * sizeof *newss); | ||||
841 | if (newss == NULL((void *)0)) | ||||
842 | goto bail; | ||||
843 | yyss = newss; | ||||
844 | yyssp = newss + sslen; | ||||
845 | if (newsize && YY_SIZE_MAX0xffffffffffffffffUL / newsize < sizeof *newvs) | ||||
846 | goto bail; | ||||
847 | newvs = (YYSTYPE *)realloc(yyvs, newsize * sizeof *newvs); | ||||
848 | if (newvs == NULL((void *)0)) | ||||
849 | goto bail; | ||||
850 | yyvs = newvs; | ||||
851 | yyvsp = newvs + sslen; | ||||
852 | yystacksize = newsize; | ||||
853 | yysslim = yyss + newsize - 1; | ||||
854 | return 0; | ||||
855 | bail: | ||||
856 | if (yyss) | ||||
857 | free(yyss); | ||||
858 | if (yyvs) | ||||
859 | free(yyvs); | ||||
860 | yyss = yyssp = NULL((void *)0); | ||||
861 | yyvs = yyvsp = NULL((void *)0); | ||||
862 | yystacksize = 0; | ||||
863 | return -1; | ||||
864 | } | ||||
865 | |||||
866 | #define YYABORTgoto yyabort goto yyabort | ||||
867 | #define YYREJECTgoto yyabort goto yyabort | ||||
868 | #define YYACCEPTgoto yyaccept goto yyaccept | ||||
869 | #define YYERRORgoto yyerrlab goto yyerrlab | ||||
870 | int | ||||
871 | yyparse(void) | ||||
872 | { | ||||
873 | int yym, yyn, yystate; | ||||
874 | #if YYDEBUG0 | ||||
875 | const char *yys; | ||||
876 | |||||
877 | if ((yys = getenv("YYDEBUG"))) | ||||
878 | { | ||||
879 | yyn = *yys; | ||||
880 | if (yyn >= '0' && yyn <= '9') | ||||
881 | yydebug = yyn - '0'; | ||||
882 | } | ||||
883 | #endif /* YYDEBUG */ | ||||
884 | |||||
885 | yynerrs = 0; | ||||
886 | yyerrflag = 0; | ||||
887 | yychar = (-1); | ||||
888 | |||||
889 | if (yyss == NULL((void *)0) && yygrowstack()) goto yyoverflow; | ||||
| |||||
890 | yyssp = yyss; | ||||
891 | yyvsp = yyvs; | ||||
892 | *yyssp = yystate = 0; | ||||
893 | |||||
894 | yyloop: | ||||
895 | if ((yyn = yydefred[yystate]) != 0) goto yyreduce; | ||||
896 | if (yychar
| ||||
897 | { | ||||
898 | if ((yychar = yylex()) < 0) yychar = 0; | ||||
899 | #if YYDEBUG0 | ||||
900 | if (yydebug) | ||||
901 | { | ||||
902 | yys = 0; | ||||
903 | if (yychar <= YYMAXTOKEN271) yys = yyname[yychar]; | ||||
904 | if (!yys) yys = "illegal-symbol"; | ||||
905 | printf("%sdebug: state %d, reading %d (%s)\n", | ||||
906 | YYPREFIX"yy", yystate, yychar, yys); | ||||
907 | } | ||||
908 | #endif | ||||
909 | } | ||||
910 | if ((yyn = yysindex[yystate]) && (yyn += yychar) >= 0 && | ||||
911 | yyn <= YYTABLESIZE260 && yycheck[yyn] == yychar) | ||||
912 | { | ||||
913 | #if YYDEBUG0 | ||||
914 | if (yydebug) | ||||
915 | printf("%sdebug: state %d, shifting to state %d\n", | ||||
916 | YYPREFIX"yy", yystate, yytable[yyn]); | ||||
917 | #endif | ||||
918 | if (yyssp >= yysslim && yygrowstack()) | ||||
919 | { | ||||
920 | goto yyoverflow; | ||||
921 | } | ||||
922 | *++yyssp = yystate = yytable[yyn]; | ||||
923 | *++yyvsp = yylval; | ||||
924 | yychar = (-1); | ||||
925 | if (yyerrflag > 0) --yyerrflag; | ||||
926 | goto yyloop; | ||||
927 | } | ||||
928 | if ((yyn = yyrindex[yystate]) && (yyn += yychar) >= 0 && | ||||
929 | yyn <= YYTABLESIZE260 && yycheck[yyn] == yychar) | ||||
930 | { | ||||
931 | yyn = yytable[yyn]; | ||||
932 | goto yyreduce; | ||||
933 | } | ||||
934 | if (yyerrflag) goto yyinrecovery; | ||||
935 | #if defined(__GNUC__4) | ||||
936 | goto yynewerror; | ||||
937 | #endif | ||||
938 | yynewerror: | ||||
939 | yyerror("syntax error"); | ||||
940 | #if defined(__GNUC__4) | ||||
941 | goto yyerrlab; | ||||
942 | #endif | ||||
943 | yyerrlab: | ||||
944 | ++yynerrs; | ||||
945 | yyinrecovery: | ||||
946 | if (yyerrflag < 3) | ||||
947 | { | ||||
948 | yyerrflag = 3; | ||||
949 | for (;;) | ||||
950 | { | ||||
951 | if ((yyn = yysindex[*yyssp]) && (yyn += YYERRCODE256) >= 0 && | ||||
952 | yyn <= YYTABLESIZE260 && yycheck[yyn] == YYERRCODE256) | ||||
953 | { | ||||
954 | #if YYDEBUG0 | ||||
955 | if (yydebug) | ||||
956 | printf("%sdebug: state %d, error recovery shifting\ | ||||
957 | to state %d\n", YYPREFIX"yy", *yyssp, yytable[yyn]); | ||||
958 | #endif | ||||
959 | if (yyssp >= yysslim && yygrowstack()) | ||||
960 | { | ||||
961 | goto yyoverflow; | ||||
962 | } | ||||
963 | *++yyssp = yystate = yytable[yyn]; | ||||
964 | *++yyvsp = yylval; | ||||
965 | goto yyloop; | ||||
966 | } | ||||
967 | else | ||||
968 | { | ||||
969 | #if YYDEBUG0 | ||||
970 | if (yydebug) | ||||
971 | printf("%sdebug: error recovery discarding state %d\n", | ||||
972 | YYPREFIX"yy", *yyssp); | ||||
973 | #endif | ||||
974 | if (yyssp <= yyss) goto yyabort; | ||||
975 | --yyssp; | ||||
976 | --yyvsp; | ||||
977 | } | ||||
978 | } | ||||
979 | } | ||||
980 | else | ||||
981 | { | ||||
982 | if (yychar == 0) goto yyabort; | ||||
983 | #if YYDEBUG0 | ||||
984 | if (yydebug) | ||||
985 | { | ||||
986 | yys = 0; | ||||
987 | if (yychar <= YYMAXTOKEN271) yys = yyname[yychar]; | ||||
988 | if (!yys) yys = "illegal-symbol"; | ||||
989 | printf("%sdebug: state %d, error recovery discards token %d (%s)\n", | ||||
990 | YYPREFIX"yy", yystate, yychar, yys); | ||||
991 | } | ||||
992 | #endif | ||||
993 | yychar = (-1); | ||||
994 | goto yyloop; | ||||
995 | } | ||||
996 | yyreduce: | ||||
997 | #if YYDEBUG0 | ||||
998 | if (yydebug) | ||||
999 | printf("%sdebug: state %d, reducing by rule %d (%s)\n", | ||||
1000 | YYPREFIX"yy", yystate, yyn, yyrule[yyn]); | ||||
1001 | #endif | ||||
1002 | yym = yylen[yyn]; | ||||
1003 | if (yym
| ||||
1004 | yyval = yyvsp[1-yym]; | ||||
1005 | else | ||||
1006 | memset(&yyval, 0, sizeof yyval); | ||||
1007 | switch (yyn) | ||||
1008 | { | ||||
1009 | case 5: | ||||
1010 | #line 124 "/usr/src/sbin/dhcpleased/parse.y" | ||||
1011 | { file->errors++; } | ||||
1012 | break; | ||||
1013 | case 6: | ||||
1014 | #line 127 "/usr/src/sbin/dhcpleased/parse.y" | ||||
1015 | { | ||||
1016 | if (asprintf(&yyval.v.string, "%s %s", yyvsp[-1].v.string, yyvsp[0].v.string) == -1) { | ||||
1017 | free(yyvsp[-1].v.string); | ||||
1018 | free(yyvsp[0].v.string); | ||||
1019 | yyerror("string: asprintf"); | ||||
1020 | YYERRORgoto yyerrlab; | ||||
1021 | } | ||||
1022 | free(yyvsp[-1].v.string); | ||||
1023 | free(yyvsp[0].v.string); | ||||
1024 | } | ||||
1025 | break; | ||||
1026 | case 8: | ||||
1027 | #line 140 "/usr/src/sbin/dhcpleased/parse.y" | ||||
1028 | { | ||||
1029 | char *s = yyvsp[-2].v.string; | ||||
1030 | if (log_getverbose() == 1) | ||||
1031 | printf("%s = \"%s\"\n", yyvsp[-2].v.string, yyvsp[0].v.string); | ||||
1032 | while (*s++) { | ||||
1033 | if (isspace((unsigned char)*s)) { | ||||
1034 | yyerror("macro name cannot contain " | ||||
1035 | "whitespace"); | ||||
1036 | free(yyvsp[-2].v.string); | ||||
1037 | free(yyvsp[0].v.string); | ||||
1038 | YYERRORgoto yyerrlab; | ||||
1039 | } | ||||
1040 | } | ||||
1041 | if (symset(yyvsp[-2].v.string, yyvsp[0].v.string, 0) == -1) | ||||
1042 | fatal("cannot store variable"); | ||||
1043 | free(yyvsp[-2].v.string); | ||||
1044 | free(yyvsp[0].v.string); | ||||
1045 | } | ||||
1046 | break; | ||||
1047 | case 12: | ||||
1048 | #line 167 "/usr/src/sbin/dhcpleased/parse.y" | ||||
1049 | { | ||||
1050 | iface_conf = conf_get_iface(yyvsp[0].v.string); | ||||
1051 | } | ||||
1052 | break; | ||||
1053 | case 13: | ||||
1054 | #line 169 "/usr/src/sbin/dhcpleased/parse.y" | ||||
1055 | { | ||||
1056 | iface_conf = NULL((void *)0); | ||||
1057 | } | ||||
1058 | break; | ||||
1059 | case 18: | ||||
1060 | #line 182 "/usr/src/sbin/dhcpleased/parse.y" | ||||
1061 | { | ||||
1062 | ssize_t len; | ||||
1063 | char buf[256]; | ||||
1064 | |||||
1065 | if (iface_conf->vc_id != NULL((void *)0)) { | ||||
1066 | yyerror("vendor class id already set"); | ||||
1067 | YYERRORgoto yyerrlab; | ||||
1068 | } | ||||
1069 | |||||
1070 | len = strnunvis(buf, yyvsp[0].v.string, sizeof(buf)); | ||||
| |||||
1071 | free(yyvsp[0].v.string); | ||||
1072 | |||||
1073 | if (len == -1) { | ||||
1074 | yyerror("invalid vendor class id"); | ||||
1075 | YYERRORgoto yyerrlab; | ||||
1076 | } | ||||
1077 | if ((size_t)len >= sizeof(buf)) { | ||||
1078 | yyerror("vendor class id too long"); | ||||
1079 | YYERRORgoto yyerrlab; | ||||
1080 | } | ||||
1081 | |||||
1082 | iface_conf->vc_id_len = 2 + strlen(buf); | ||||
1083 | iface_conf->vc_id = malloc(iface_conf->vc_id_len); | ||||
1084 | if (iface_conf->vc_id == NULL((void *)0)) { | ||||
1085 | yyerror("malloc"); | ||||
1086 | YYERRORgoto yyerrlab; | ||||
1087 | } | ||||
1088 | iface_conf->vc_id[0] = DHO_DHCP_CLASS_IDENTIFIER60; | ||||
1089 | iface_conf->vc_id[1] = iface_conf->vc_id_len - 2; | ||||
1090 | memcpy(&iface_conf->vc_id[2], buf, | ||||
1091 | iface_conf->vc_id_len - 2); | ||||
1092 | } | ||||
1093 | break; | ||||
1094 | case 19: | ||||
1095 | #line 214 "/usr/src/sbin/dhcpleased/parse.y" | ||||
1096 | { | ||||
1097 | size_t i; | ||||
1098 | ssize_t len; | ||||
1099 | int not_hex = 0, val; | ||||
1100 | char buf[256], *hex, *p, excess; | ||||
1101 | |||||
1102 | if (iface_conf->c_id != NULL((void *)0)) { | ||||
1103 | yyerror("client-id already set"); | ||||
1104 | YYERRORgoto yyerrlab; | ||||
1105 | } | ||||
1106 | |||||
1107 | /* parse as hex string including the type byte */ | ||||
1108 | if ((hex = strdup(yyvsp[0].v.string)) == NULL((void *)0)) { | ||||
1109 | free(yyvsp[0].v.string); | ||||
1110 | yyerror("malloc"); | ||||
1111 | YYERRORgoto yyerrlab; | ||||
1112 | } | ||||
1113 | for (i = 0; (p = strsep(&hex, ":")) != NULL((void *)0) && i < | ||||
1114 | sizeof(buf); ) { | ||||
1115 | if (sscanf(p, "%x%c", &val, &excess) != 1 || | ||||
1116 | val < 0 || val > 0xff) { | ||||
1117 | not_hex = 1; | ||||
1118 | break; | ||||
1119 | } | ||||
1120 | buf[i++] = (val & 0xff); | ||||
1121 | } | ||||
1122 | if (p != NULL((void *)0) && i == sizeof(buf)) | ||||
1123 | not_hex = 1; | ||||
1124 | free(hex); | ||||
1125 | |||||
1126 | if (not_hex) { | ||||
1127 | len = strnunvis(buf, yyvsp[0].v.string, sizeof(buf)); | ||||
1128 | free(yyvsp[0].v.string); | ||||
1129 | |||||
1130 | if (len == -1) { | ||||
1131 | yyerror("invalid client-id"); | ||||
1132 | YYERRORgoto yyerrlab; | ||||
1133 | } | ||||
1134 | if ((size_t)len >= sizeof(buf)) { | ||||
1135 | yyerror("client-id too long"); | ||||
1136 | YYERRORgoto yyerrlab; | ||||
1137 | } | ||||
1138 | iface_conf->c_id_len = 2 + len; | ||||
1139 | iface_conf->c_id = malloc(iface_conf->c_id_len); | ||||
1140 | if (iface_conf->c_id == NULL((void *)0)) { | ||||
1141 | yyerror("malloc"); | ||||
1142 | YYERRORgoto yyerrlab; | ||||
1143 | } | ||||
1144 | memcpy(&iface_conf->c_id[2], buf, | ||||
1145 | iface_conf->c_id_len - 2); | ||||
1146 | } else { | ||||
1147 | free(yyvsp[0].v.string); | ||||
1148 | iface_conf->c_id_len = 2 + i; | ||||
1149 | iface_conf->c_id = malloc(iface_conf->c_id_len); | ||||
1150 | if (iface_conf->c_id == NULL((void *)0)) { | ||||
1151 | yyerror("malloc"); | ||||
1152 | YYERRORgoto yyerrlab; | ||||
1153 | } | ||||
1154 | memcpy(&iface_conf->c_id[2], buf, | ||||
1155 | iface_conf->c_id_len - 2); | ||||
1156 | } | ||||
1157 | iface_conf->c_id[0] = DHO_DHCP_CLIENT_IDENTIFIER61; | ||||
1158 | iface_conf->c_id[1] = iface_conf->c_id_len - 2; | ||||
1159 | } | ||||
1160 | break; | ||||
1161 | case 20: | ||||
1162 | #line 278 "/usr/src/sbin/dhcpleased/parse.y" | ||||
1163 | { | ||||
1164 | if (iface_conf->h_name != NULL((void *)0)) { | ||||
1165 | free(yyvsp[0].v.string); | ||||
1166 | yyerror("host name already set"); | ||||
1167 | YYERRORgoto yyerrlab; | ||||
1168 | } | ||||
1169 | if (strlen(yyvsp[0].v.string) > 255) { | ||||
1170 | free(yyvsp[0].v.string); | ||||
1171 | yyerror("host name too long"); | ||||
1172 | YYERRORgoto yyerrlab; | ||||
1173 | } | ||||
1174 | iface_conf->h_name = yyvsp[0].v.string; | ||||
1175 | } | ||||
1176 | break; | ||||
1177 | case 21: | ||||
1178 | #line 291 "/usr/src/sbin/dhcpleased/parse.y" | ||||
1179 | { | ||||
1180 | if (iface_conf->h_name != NULL((void *)0)) { | ||||
1181 | yyerror("host name already set"); | ||||
1182 | YYERRORgoto yyerrlab; | ||||
1183 | } | ||||
1184 | |||||
1185 | if ((iface_conf->h_name = strdup("")) == NULL((void *)0)) { | ||||
1186 | yyerror("malloc"); | ||||
1187 | YYERRORgoto yyerrlab; | ||||
1188 | } | ||||
1189 | } | ||||
1190 | break; | ||||
1191 | case 22: | ||||
1192 | #line 302 "/usr/src/sbin/dhcpleased/parse.y" | ||||
1193 | { | ||||
1194 | iface_conf->ignore |= IGN_ROUTES1; | ||||
1195 | } | ||||
1196 | break; | ||||
1197 | case 23: | ||||
1198 | #line 305 "/usr/src/sbin/dhcpleased/parse.y" | ||||
1199 | { | ||||
1200 | iface_conf->ignore |= IGN_DNS2; | ||||
1201 | } | ||||
1202 | break; | ||||
1203 | case 24: | ||||
1204 | #line 308 "/usr/src/sbin/dhcpleased/parse.y" | ||||
1205 | { | ||||
1206 | int res; | ||||
1207 | |||||
1208 | if (iface_conf->ignore_servers_len >= MAX_SERVERS16) { | ||||
1209 | yyerror("too many servers to ignore"); | ||||
1210 | free(yyvsp[0].v.string); | ||||
1211 | YYERRORgoto yyerrlab; | ||||
1212 | } | ||||
1213 | res = inet_pton(AF_INET2, yyvsp[0].v.string, | ||||
1214 | &iface_conf->ignore_servers[ | ||||
1215 | iface_conf->ignore_servers_len++]); | ||||
1216 | |||||
1217 | if (res != 1) { | ||||
1218 | yyerror("Invalid server IP %s", yyvsp[0].v.string); | ||||
1219 | free(yyvsp[0].v.string); | ||||
1220 | YYERRORgoto yyerrlab; | ||||
1221 | } | ||||
1222 | free(yyvsp[0].v.string); | ||||
1223 | } | ||||
1224 | break; | ||||
1225 | #line 1218 "parse.c" | ||||
1226 | } | ||||
1227 | yyssp -= yym; | ||||
1228 | yystate = *yyssp; | ||||
1229 | yyvsp -= yym; | ||||
1230 | yym = yylhs[yyn]; | ||||
1231 | if (yystate
| ||||
1232 | { | ||||
1233 | #if YYDEBUG0 | ||||
1234 | if (yydebug) | ||||
1235 | printf("%sdebug: after reduction, shifting from state 0 to\ | ||||
1236 | state %d\n", YYPREFIX"yy", YYFINAL1); | ||||
1237 | #endif | ||||
1238 | yystate = YYFINAL1; | ||||
1239 | *++yyssp = YYFINAL1; | ||||
1240 | *++yyvsp = yyval; | ||||
1241 | if (yychar
| ||||
1242 | { | ||||
1243 | if ((yychar = yylex()) < 0) yychar = 0; | ||||
1244 | #if YYDEBUG0 | ||||
1245 | if (yydebug) | ||||
1246 | { | ||||
1247 | yys = 0; | ||||
1248 | if (yychar <= YYMAXTOKEN271) yys = yyname[yychar]; | ||||
1249 | if (!yys) yys = "illegal-symbol"; | ||||
1250 | printf("%sdebug: state %d, reading %d (%s)\n", | ||||
1251 | YYPREFIX"yy", YYFINAL1, yychar, yys); | ||||
1252 | } | ||||
1253 | #endif | ||||
1254 | } | ||||
1255 | if (yychar == 0) goto yyaccept; | ||||
1256 | goto yyloop; | ||||
1257 | } | ||||
1258 | if ((yyn = yygindex[yym]) && (yyn += yystate) >= 0 && | ||||
1259 | yyn <= YYTABLESIZE260 && yycheck[yyn] == yystate) | ||||
1260 | yystate = yytable[yyn]; | ||||
1261 | else | ||||
1262 | yystate = yydgoto[yym]; | ||||
1263 | #if YYDEBUG0 | ||||
1264 | if (yydebug) | ||||
1265 | printf("%sdebug: after reduction, shifting from state %d \ | ||||
1266 | to state %d\n", YYPREFIX"yy", *yyssp, yystate); | ||||
1267 | #endif | ||||
1268 | if (yyssp >= yysslim && yygrowstack()) | ||||
1269 | { | ||||
1270 | goto yyoverflow; | ||||
1271 | } | ||||
1272 | *++yyssp = yystate; | ||||
1273 | *++yyvsp = yyval; | ||||
1274 | goto yyloop; | ||||
1275 | yyoverflow: | ||||
1276 | yyerror("yacc stack overflow"); | ||||
1277 | yyabort: | ||||
1278 | if (yyss) | ||||
1279 | free(yyss); | ||||
1280 | if (yyvs) | ||||
1281 | free(yyvs); | ||||
1282 | yyss = yyssp = NULL((void *)0); | ||||
1283 | yyvs = yyvsp = NULL((void *)0); | ||||
1284 | yystacksize = 0; | ||||
1285 | return (1); | ||||
1286 | yyaccept: | ||||
1287 | if (yyss) | ||||
1288 | free(yyss); | ||||
1289 | if (yyvs) | ||||
1290 | free(yyvs); | ||||
1291 | yyss = yyssp = NULL((void *)0); | ||||
1292 | yyvs = yyvsp = NULL((void *)0); | ||||
1293 | yystacksize = 0; | ||||
1294 | return (0); | ||||
1295 | } |