| File: | src/usr.bin/cvs/rcsparse.c |
| Warning: | line 1107, column 2 Value stored to 'i' is never read |
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| 1 | /* $OpenBSD: rcsparse.c,v 1.13 2016/10/13 20:51:25 fcambus Exp $ */ |
| 2 | /* |
| 3 | * Copyright (c) 2010 Tobias Stoeckmann <tobias@openbsd.org> |
| 4 | * |
| 5 | * Permission to use, copy, modify, and distribute this software for any |
| 6 | * purpose with or without fee is hereby granted, provided that the above |
| 7 | * copyright notice and this permission notice appear in all copies. |
| 8 | * |
| 9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 16 | */ |
| 17 | |
| 18 | #include <sys/queue.h> |
| 19 | |
| 20 | #include <ctype.h> |
| 21 | #include <err.h> |
| 22 | #include <pwd.h> |
| 23 | #include <stdarg.h> |
| 24 | #include <stdio.h> |
| 25 | #include <stdlib.h> |
| 26 | #include <string.h> |
| 27 | #include <unistd.h> |
| 28 | |
| 29 | #include "log.h" |
| 30 | #include "rcs.h" |
| 31 | #include "rcsparse.h" |
| 32 | #include "xmalloc.h" |
| 33 | |
| 34 | #define RCS_BUFSIZE16384 16384 |
| 35 | #define RCS_BUFEXTSIZE8192 8192 |
| 36 | |
| 37 | /* RCS token types */ |
| 38 | #define RCS_TOK_HEAD(1 << 0) (1 << 0) |
| 39 | #define RCS_TOK_BRANCH(1 << 1) (1 << 1) |
| 40 | #define RCS_TOK_ACCESS(1 << 2) (1 << 2) |
| 41 | #define RCS_TOK_SYMBOLS(1 << 3) (1 << 3) |
| 42 | #define RCS_TOK_LOCKS(1 << 4) (1 << 4) |
| 43 | #define RCS_TOK_STRICT(1 << 5) (1 << 5) |
| 44 | #define RCS_TOK_COMMENT(1 << 6) (1 << 6) |
| 45 | #define RCS_TOK_COMMITID(1 << 7) (1 << 7) |
| 46 | #define RCS_TOK_EXPAND(1 << 8) (1 << 8) |
| 47 | #define RCS_TOK_DESC(1 << 9) (1 << 9) |
| 48 | #define RCS_TOK_DATE(1 << 10) (1 << 10) |
| 49 | #define RCS_TOK_AUTHOR(1 << 11) (1 << 11) |
| 50 | #define RCS_TOK_STATE(1 << 12) (1 << 12) |
| 51 | #define RCS_TOK_BRANCHES(1 << 13) (1 << 13) |
| 52 | #define RCS_TOK_NEXT(1 << 14) (1 << 14) |
| 53 | #define RCS_TOK_LOG(1 << 15) (1 << 15) |
| 54 | #define RCS_TOK_TEXT(1 << 16) (1 << 16) |
| 55 | #define RCS_TOK_COLON(1 << 17) (1 << 17) |
| 56 | #define RCS_TOK_COMMA(1 << 18) (1 << 18) |
| 57 | #define RCS_TOK_SCOLON(1 << 19) (1 << 19) |
| 58 | |
| 59 | #define RCS_TYPE_STRING(1 << 20) (1 << 20) |
| 60 | #define RCS_TYPE_NUMBER(1 << 21) (1 << 21) |
| 61 | #define RCS_TYPE_BRANCH(1 << 22) (1 << 22) |
| 62 | #define RCS_TYPE_REVISION(1 << 23) (1 << 23) |
| 63 | #define RCS_TYPE_LOGIN(1 << 24) (1 << 24) |
| 64 | #define RCS_TYPE_STATE(1 << 25) (1 << 25) |
| 65 | #define RCS_TYPE_SYMBOL(1 << 26) (1 << 26) |
| 66 | #define RCS_TYPE_DATE(1 << 27) (1 << 27) |
| 67 | #define RCS_TYPE_KEYWORD(1 << 28) (1 << 28) |
| 68 | #define RCS_TYPE_COMMITID(1 << 29) (1 << 29) |
| 69 | |
| 70 | #define MANDATORY0 0 |
| 71 | #define OPTIONAL1 1 |
| 72 | |
| 73 | /* opaque parse data */ |
| 74 | struct rcs_pdata { |
| 75 | char *rp_buf; |
| 76 | size_t rp_blen; |
| 77 | char *rp_bufend; |
| 78 | size_t rp_tlen; |
| 79 | |
| 80 | struct rcs_delta *rp_delta; |
| 81 | int rp_lineno; |
| 82 | int rp_msglineno; |
| 83 | int rp_token; |
| 84 | |
| 85 | union { |
| 86 | RCSNUM *rev; |
| 87 | char *str; |
| 88 | struct tm date; |
| 89 | } rp_value; |
| 90 | }; |
| 91 | |
| 92 | struct rcs_keyword { |
| 93 | const char *k_name; |
| 94 | int k_val; |
| 95 | }; |
| 96 | |
| 97 | struct rcs_section { |
| 98 | int token; |
| 99 | int (*parse)(RCSFILE *, struct rcs_pdata *); |
| 100 | int opt; |
| 101 | }; |
| 102 | |
| 103 | /* this has to be sorted always */ |
| 104 | static const struct rcs_keyword keywords[] = { |
| 105 | { "access", RCS_TOK_ACCESS(1 << 2)}, |
| 106 | { "author", RCS_TOK_AUTHOR(1 << 11)}, |
| 107 | { "branch", RCS_TOK_BRANCH(1 << 1)}, |
| 108 | { "branches", RCS_TOK_BRANCHES(1 << 13)}, |
| 109 | { "comment", RCS_TOK_COMMENT(1 << 6)}, |
| 110 | { "commitid", RCS_TOK_COMMITID(1 << 7)}, |
| 111 | { "date", RCS_TOK_DATE(1 << 10)}, |
| 112 | { "desc", RCS_TOK_DESC(1 << 9)}, |
| 113 | { "expand", RCS_TOK_EXPAND(1 << 8)}, |
| 114 | { "head", RCS_TOK_HEAD(1 << 0)}, |
| 115 | { "locks", RCS_TOK_LOCKS(1 << 4)}, |
| 116 | { "log", RCS_TOK_LOG(1 << 15)}, |
| 117 | { "next", RCS_TOK_NEXT(1 << 14)}, |
| 118 | { "state", RCS_TOK_STATE(1 << 12)}, |
| 119 | { "strict", RCS_TOK_STRICT(1 << 5)}, |
| 120 | { "symbols", RCS_TOK_SYMBOLS(1 << 3)}, |
| 121 | { "text", RCS_TOK_TEXT(1 << 16)} |
| 122 | }; |
| 123 | |
| 124 | /* parser functions specified in rcs_section structs */ |
| 125 | static int rcsparse_head(RCSFILE *, struct rcs_pdata *); |
| 126 | static int rcsparse_branch(RCSFILE *, struct rcs_pdata *); |
| 127 | static int rcsparse_access(RCSFILE *, struct rcs_pdata *); |
| 128 | static int rcsparse_symbols(RCSFILE *, struct rcs_pdata *); |
| 129 | static int rcsparse_locks(RCSFILE *, struct rcs_pdata *); |
| 130 | static int rcsparse_strict(RCSFILE *, struct rcs_pdata *); |
| 131 | static int rcsparse_comment(RCSFILE *, struct rcs_pdata *); |
| 132 | static int rcsparse_commitid(RCSFILE *, struct rcs_pdata *); |
| 133 | static int rcsparse_expand(RCSFILE *, struct rcs_pdata *); |
| 134 | static int rcsparse_deltarevision(RCSFILE *, struct rcs_pdata *); |
| 135 | static int rcsparse_date(RCSFILE *, struct rcs_pdata *); |
| 136 | static int rcsparse_author(RCSFILE *, struct rcs_pdata *); |
| 137 | static int rcsparse_state(RCSFILE *, struct rcs_pdata *); |
| 138 | static int rcsparse_branches(RCSFILE *, struct rcs_pdata *); |
| 139 | static int rcsparse_next(RCSFILE *, struct rcs_pdata *); |
| 140 | static int rcsparse_textrevision(RCSFILE *, struct rcs_pdata *); |
| 141 | static int rcsparse_log(RCSFILE *, struct rcs_pdata *); |
| 142 | static int rcsparse_text(RCSFILE *, struct rcs_pdata *); |
| 143 | |
| 144 | static int rcsparse_delta(RCSFILE *); |
| 145 | static int rcsparse_deltatext(RCSFILE *); |
| 146 | static int rcsparse_desc(RCSFILE *); |
| 147 | |
| 148 | static int kw_cmp(const void *, const void *); |
| 149 | static int rcsparse(RCSFILE *, struct rcs_section *); |
| 150 | static void rcsparse_growbuf(RCSFILE *); |
| 151 | static int rcsparse_string(RCSFILE *, int); |
| 152 | static int rcsparse_token(RCSFILE *, int); |
| 153 | static void rcsparse_warnx(RCSFILE *, char *, ...); |
| 154 | static int valid_login(char *); |
| 155 | static int valid_commitid(char *); |
| 156 | |
| 157 | /* |
| 158 | * head [REVISION]; |
| 159 | * [branch BRANCH]; |
| 160 | * access [LOGIN ...]; |
| 161 | * symbols [SYMBOL:REVISION ...]; |
| 162 | * locks [LOGIN:REVISION ...]; |
| 163 | * [strict;] |
| 164 | * [comment [@[...]@];] |
| 165 | * [expand [@[...]@];] |
| 166 | */ |
| 167 | static struct rcs_section sec_admin[] = { |
| 168 | { RCS_TOK_HEAD(1 << 0), rcsparse_head, MANDATORY0 }, |
| 169 | { RCS_TOK_BRANCH(1 << 1), rcsparse_branch, OPTIONAL1 }, |
| 170 | { RCS_TOK_ACCESS(1 << 2), rcsparse_access, MANDATORY0 }, |
| 171 | { RCS_TOK_SYMBOLS(1 << 3), rcsparse_symbols, MANDATORY0 }, |
| 172 | { RCS_TOK_LOCKS(1 << 4), rcsparse_locks, MANDATORY0 }, |
| 173 | { RCS_TOK_STRICT(1 << 5), rcsparse_strict, OPTIONAL1 }, |
| 174 | { RCS_TOK_COMMENT(1 << 6), rcsparse_comment, OPTIONAL1 }, |
| 175 | { RCS_TOK_EXPAND(1 << 8), rcsparse_expand, OPTIONAL1 }, |
| 176 | { 0, NULL((void *)0), 0 } |
| 177 | }; |
| 178 | |
| 179 | /* |
| 180 | * REVISION |
| 181 | * date [YY]YY.MM.DD.HH.MM.SS; |
| 182 | * author LOGIN; |
| 183 | * state STATE; |
| 184 | * branches [REVISION ...]; |
| 185 | * next [REVISION]; |
| 186 | * [commitid ID;] |
| 187 | */ |
| 188 | static struct rcs_section sec_delta[] = { |
| 189 | { RCS_TYPE_REVISION(1 << 23), rcsparse_deltarevision, MANDATORY0 }, |
| 190 | { RCS_TOK_DATE(1 << 10), rcsparse_date, MANDATORY0 }, |
| 191 | { RCS_TOK_AUTHOR(1 << 11), rcsparse_author, MANDATORY0 }, |
| 192 | { RCS_TOK_STATE(1 << 12), rcsparse_state, MANDATORY0 }, |
| 193 | { RCS_TOK_BRANCHES(1 << 13), rcsparse_branches, MANDATORY0 }, |
| 194 | { RCS_TOK_NEXT(1 << 14), rcsparse_next, MANDATORY0 }, |
| 195 | { RCS_TOK_COMMITID(1 << 7), rcsparse_commitid, OPTIONAL1 }, |
| 196 | { 0, NULL((void *)0), 0 } |
| 197 | }; |
| 198 | |
| 199 | /* |
| 200 | * REVISION |
| 201 | * log @[...]@ |
| 202 | * text @[...]@ |
| 203 | */ |
| 204 | static struct rcs_section sec_deltatext[] = { |
| 205 | { RCS_TYPE_REVISION(1 << 23), rcsparse_textrevision, MANDATORY0 }, |
| 206 | { RCS_TOK_LOG(1 << 15), rcsparse_log, MANDATORY0 }, |
| 207 | { RCS_TOK_TEXT(1 << 16), rcsparse_text, MANDATORY0 }, |
| 208 | { 0, NULL((void *)0), 0 } |
| 209 | }; |
| 210 | |
| 211 | /* |
| 212 | * rcsparse_init() |
| 213 | * |
| 214 | * Initializes the parsing data structure and parses the admin section of |
| 215 | * RCS file <rfp>. |
| 216 | * |
| 217 | * Returns 0 on success or 1 on failure. |
| 218 | */ |
| 219 | int |
| 220 | rcsparse_init(RCSFILE *rfp) |
| 221 | { |
| 222 | struct rcs_pdata *pdp; |
| 223 | |
| 224 | if (rfp->rf_flags & RCS_PARSED(1<<4)) |
| 225 | return (0); |
| 226 | |
| 227 | pdp = xcalloc(1, sizeof(*pdp)); |
| 228 | pdp->rp_buf = xmalloc(RCS_BUFSIZE16384); |
| 229 | pdp->rp_blen = RCS_BUFSIZE16384; |
| 230 | pdp->rp_bufend = pdp->rp_buf + pdp->rp_blen - 1; |
| 231 | pdp->rp_token = -1; |
| 232 | pdp->rp_lineno = 1; |
| 233 | pdp->rp_msglineno = 1; |
| 234 | |
| 235 | /* ditch the strict lock */ |
| 236 | rfp->rf_flags &= ~RCS_SLOCK(1<<6); |
| 237 | rfp->rf_pdata = pdp; |
| 238 | |
| 239 | if (rcsparse(rfp, sec_admin)) { |
| 240 | rcsparse_free(rfp); |
| 241 | return (1); |
| 242 | } |
| 243 | |
| 244 | if ((rfp->rf_flags & RCS_PARSE_FULLY(1<<3)) && |
| 245 | rcsparse_deltatexts(rfp, NULL((void *)0))) { |
| 246 | rcsparse_free(rfp); |
| 247 | return (1); |
| 248 | } |
| 249 | |
| 250 | rfp->rf_flags |= RCS_SYNCED(1<<5); |
| 251 | return (0); |
| 252 | } |
| 253 | |
| 254 | /* |
| 255 | * rcsparse_deltas() |
| 256 | * |
| 257 | * Parse deltas. If <rev> is not NULL, parse only as far as that |
| 258 | * revision. If <rev> is NULL, parse all deltas. |
| 259 | * |
| 260 | * Returns 0 on success or 1 on error. |
| 261 | */ |
| 262 | int |
| 263 | rcsparse_deltas(RCSFILE *rfp, RCSNUM *rev) |
| 264 | { |
| 265 | int ret; |
| 266 | struct rcs_delta *enddelta; |
| 267 | |
| 268 | if ((rfp->rf_flags & PARSED_DELTAS(1<<7)) || (rfp->rf_flags & RCS_CREATE(1<<2))) |
| 269 | return (0); |
| 270 | |
| 271 | for (;;) { |
| 272 | ret = rcsparse_delta(rfp); |
| 273 | if (rev != NULL((void *)0)) { |
| 274 | enddelta = TAILQ_LAST(&(rfp->rf_delta), rcs_dlist)(*(((struct rcs_dlist *)((&(rfp->rf_delta))->tqh_last ))->tqh_last)); |
| 275 | if (enddelta == NULL((void *)0)) |
| 276 | return (1); |
| 277 | |
| 278 | if (rcsnum_cmp(enddelta->rd_num, rev, 0) == 0) |
| 279 | break; |
| 280 | } |
| 281 | |
| 282 | if (ret == 0) { |
| 283 | rfp->rf_flags |= PARSED_DELTAS(1<<7); |
| 284 | break; |
| 285 | } |
| 286 | else if (ret == -1) |
| 287 | return (1); |
| 288 | } |
| 289 | |
| 290 | return (0); |
| 291 | } |
| 292 | |
| 293 | /* |
| 294 | * rcsparse_deltatexts() |
| 295 | * |
| 296 | * Parse deltatexts. If <rev> is not NULL, parse only as far as that |
| 297 | * revision. If <rev> is NULL, parse everything. |
| 298 | * |
| 299 | * Returns 0 on success or 1 on error. |
| 300 | */ |
| 301 | int |
| 302 | rcsparse_deltatexts(RCSFILE *rfp, RCSNUM *rev) |
| 303 | { |
| 304 | int ret; |
| 305 | struct rcs_delta *rdp; |
| 306 | |
| 307 | if ((rfp->rf_flags & PARSED_DELTATEXTS(1<<9)) || |
| 308 | (rfp->rf_flags & RCS_CREATE(1<<2))) |
| 309 | return (0); |
| 310 | |
| 311 | if (!(rfp->rf_flags & PARSED_DESC(1<<8))) |
| 312 | if (rcsparse_desc(rfp)) |
| 313 | return (1); |
| 314 | |
| 315 | rdp = (rev != NULL((void *)0)) ? rcs_findrev(rfp, rev) : NULL((void *)0); |
| 316 | |
| 317 | for (;;) { |
| 318 | if (rdp != NULL((void *)0) && rdp->rd_text != NULL((void *)0)) |
| 319 | break; |
| 320 | ret = rcsparse_deltatext(rfp); |
| 321 | if (ret == 0) { |
| 322 | rfp->rf_flags |= PARSED_DELTATEXTS(1<<9); |
| 323 | break; |
| 324 | } |
| 325 | else if (ret == -1) |
| 326 | return (1); |
| 327 | } |
| 328 | |
| 329 | return (0); |
| 330 | } |
| 331 | |
| 332 | /* |
| 333 | * rcsparse_free() |
| 334 | * |
| 335 | * Free the contents of the <rfp>'s parser data structure. |
| 336 | */ |
| 337 | void |
| 338 | rcsparse_free(RCSFILE *rfp) |
| 339 | { |
| 340 | struct rcs_pdata *pdp; |
| 341 | |
| 342 | pdp = rfp->rf_pdata; |
| 343 | |
| 344 | free(pdp->rp_buf); |
| 345 | if (pdp->rp_token == RCS_TYPE_REVISION(1 << 23)) |
| 346 | free(pdp->rp_value.rev); |
| 347 | free(pdp); |
| 348 | } |
| 349 | |
| 350 | /* |
| 351 | * rcsparse_desc() |
| 352 | * |
| 353 | * Parse desc of the RCS file <rfp>. By calling rcsparse_desc, all deltas |
| 354 | * will be parsed in order to proceed the reading cursor to the desc keyword. |
| 355 | * |
| 356 | * desc @[...]@; |
| 357 | * |
| 358 | * Returns 0 on success or 1 on error. |
| 359 | */ |
| 360 | static int |
| 361 | rcsparse_desc(RCSFILE *rfp) |
| 362 | { |
| 363 | struct rcs_pdata *pdp; |
| 364 | |
| 365 | if (rfp->rf_flags & PARSED_DESC(1<<8)) |
| 366 | return (0); |
| 367 | |
| 368 | if (!(rfp->rf_flags & PARSED_DELTAS(1<<7)) && rcsparse_deltas(rfp, NULL((void *)0))) |
| 369 | return (1); |
| 370 | |
| 371 | pdp = (struct rcs_pdata *)rfp->rf_pdata; |
| 372 | |
| 373 | if (rcsparse_token(rfp, RCS_TOK_DESC(1 << 9)) != RCS_TOK_DESC(1 << 9) || |
| 374 | rcsparse_token(rfp, RCS_TYPE_STRING(1 << 20)) != RCS_TYPE_STRING(1 << 20)) |
| 375 | return (1); |
| 376 | |
| 377 | rfp->rf_desc = pdp->rp_value.str; |
| 378 | rfp->rf_flags |= PARSED_DESC(1<<8); |
| 379 | |
| 380 | return (0); |
| 381 | } |
| 382 | |
| 383 | /* |
| 384 | * rcsparse_deltarevision() |
| 385 | * |
| 386 | * Called upon reaching a new REVISION entry in the delta section. |
| 387 | * A new rcs_delta structure will be prepared in pdp->rp_delta for further |
| 388 | * parsing. |
| 389 | * |
| 390 | * REVISION |
| 391 | * |
| 392 | * Always returns 0. |
| 393 | */ |
| 394 | static int |
| 395 | rcsparse_deltarevision(RCSFILE *rfp, struct rcs_pdata *pdp) |
| 396 | { |
| 397 | struct rcs_delta *rdp; |
| 398 | |
| 399 | rdp = xcalloc(1, sizeof(*rdp)); |
| 400 | TAILQ_INIT(&rdp->rd_branches)do { (&rdp->rd_branches)->tqh_first = ((void *)0); ( &rdp->rd_branches)->tqh_last = &(&rdp->rd_branches )->tqh_first; } while (0); |
| 401 | rdp->rd_num = pdp->rp_value.rev; |
| 402 | pdp->rp_delta = rdp; |
| 403 | |
| 404 | return (0); |
| 405 | } |
| 406 | |
| 407 | /* |
| 408 | * rcsparse_date() |
| 409 | * |
| 410 | * Parses the specified date of current delta pdp->rp_delta. |
| 411 | * |
| 412 | * date YYYY.MM.DD.HH.MM.SS; |
| 413 | * |
| 414 | * Returns 0 on success or 1 on failure. |
| 415 | */ |
| 416 | static int |
| 417 | rcsparse_date(RCSFILE *rfp, struct rcs_pdata *pdp) |
| 418 | { |
| 419 | if (rcsparse_token(rfp, RCS_TYPE_DATE(1 << 27)) != RCS_TYPE_DATE(1 << 27)) |
| 420 | return (1); |
| 421 | |
| 422 | pdp->rp_delta->rd_date = pdp->rp_value.date; |
| 423 | |
| 424 | return (rcsparse_token(rfp, RCS_TOK_SCOLON(1 << 19)) != RCS_TOK_SCOLON(1 << 19)); |
| 425 | } |
| 426 | |
| 427 | /* |
| 428 | * rcsparse_author() |
| 429 | * |
| 430 | * Parses the specified author of current delta pdp->rp_delta. |
| 431 | * |
| 432 | * author LOGIN; |
| 433 | * |
| 434 | * Returns 0 on success or 1 on failure. |
| 435 | */ |
| 436 | static int |
| 437 | rcsparse_author(RCSFILE *rfp, struct rcs_pdata *pdp) |
| 438 | { |
| 439 | if (rcsparse_token(rfp, RCS_TYPE_LOGIN(1 << 24)) != RCS_TYPE_LOGIN(1 << 24)) |
| 440 | return (1); |
| 441 | |
| 442 | pdp->rp_delta->rd_author = pdp->rp_value.str; |
| 443 | |
| 444 | return (rcsparse_token(rfp, RCS_TOK_SCOLON(1 << 19)) != RCS_TOK_SCOLON(1 << 19)); |
| 445 | } |
| 446 | |
| 447 | /* |
| 448 | * rcsparse_state() |
| 449 | * |
| 450 | * Parses the specified state of current delta pdp->rp_delta. |
| 451 | * |
| 452 | * state STATE; |
| 453 | * |
| 454 | * Returns 0 on success or 1 on failure. |
| 455 | */ |
| 456 | static int |
| 457 | rcsparse_state(RCSFILE *rfp, struct rcs_pdata *pdp) |
| 458 | { |
| 459 | if (rcsparse_token(rfp, RCS_TYPE_STATE(1 << 25)) != RCS_TYPE_STATE(1 << 25)) |
| 460 | return (1); |
| 461 | |
| 462 | pdp->rp_delta->rd_state = pdp->rp_value.str; |
| 463 | |
| 464 | return (rcsparse_token(rfp, RCS_TOK_SCOLON(1 << 19)) != RCS_TOK_SCOLON(1 << 19)); |
| 465 | } |
| 466 | |
| 467 | /* |
| 468 | * rcsparse_branches() |
| 469 | * |
| 470 | * Parses the specified branches of current delta pdp->rp_delta. |
| 471 | * |
| 472 | * branches [REVISION ...]; |
| 473 | * |
| 474 | * Returns 0 on success or 1 on failure. |
| 475 | */ |
| 476 | static int |
| 477 | rcsparse_branches(RCSFILE *rfp, struct rcs_pdata *pdp) |
| 478 | { |
| 479 | struct rcs_branch *rb; |
| 480 | int type; |
| 481 | |
| 482 | while ((type = rcsparse_token(rfp, RCS_TOK_SCOLON(1 << 19)|RCS_TYPE_REVISION(1 << 23))) |
| 483 | == RCS_TYPE_REVISION(1 << 23)) { |
| 484 | rb = xmalloc(sizeof(*rb)); |
| 485 | rb->rb_num = pdp->rp_value.rev; |
| 486 | TAILQ_INSERT_TAIL(&(pdp->rp_delta->rd_branches), rb, rb_list)do { (rb)->rb_list.tqe_next = ((void *)0); (rb)->rb_list .tqe_prev = (&(pdp->rp_delta->rd_branches))->tqh_last ; *(&(pdp->rp_delta->rd_branches))->tqh_last = ( rb); (&(pdp->rp_delta->rd_branches))->tqh_last = &(rb)->rb_list.tqe_next; } while (0); |
| 487 | } |
| 488 | |
| 489 | return (type != RCS_TOK_SCOLON(1 << 19)); |
| 490 | } |
| 491 | |
| 492 | /* |
| 493 | * rcsparse_next() |
| 494 | * |
| 495 | * Parses the specified next revision of current delta pdp->rp_delta. |
| 496 | * |
| 497 | * next [REVISION]; |
| 498 | * |
| 499 | * Returns 0 on success or 1 on failure. |
| 500 | */ |
| 501 | static int |
| 502 | rcsparse_next(RCSFILE *rfp, struct rcs_pdata *pdp) |
| 503 | { |
| 504 | int type; |
| 505 | |
| 506 | type = rcsparse_token(rfp, RCS_TYPE_REVISION(1 << 23)|RCS_TOK_SCOLON(1 << 19)); |
| 507 | if (type == RCS_TYPE_REVISION(1 << 23)) { |
| 508 | pdp->rp_delta->rd_next = pdp->rp_value.rev; |
| 509 | type = rcsparse_token(rfp, RCS_TOK_SCOLON(1 << 19)); |
| 510 | } else |
| 511 | pdp->rp_delta->rd_next = rcsnum_alloc(); |
| 512 | |
| 513 | return (type != RCS_TOK_SCOLON(1 << 19)); |
| 514 | } |
| 515 | |
| 516 | /* |
| 517 | * rcsparse_commitid() |
| 518 | * |
| 519 | * Parses the specified commit id of current delta pdp->rp_delta. The |
| 520 | * commitid keyword is optional and can be omitted. |
| 521 | * |
| 522 | * [commitid ID;] |
| 523 | * |
| 524 | * Returns 0 on success or 1 on failure. |
| 525 | */ |
| 526 | static int |
| 527 | rcsparse_commitid(RCSFILE *rfp, struct rcs_pdata *pdp) |
| 528 | { |
| 529 | if (rcsparse_token(rfp, RCS_TYPE_COMMITID(1 << 29)) != RCS_TYPE_COMMITID(1 << 29)) |
| 530 | return (1); |
| 531 | |
| 532 | pdp->rp_delta->rd_commitid = pdp->rp_value.str; |
| 533 | |
| 534 | return (rcsparse_token(rfp, RCS_TOK_SCOLON(1 << 19)) != RCS_TOK_SCOLON(1 << 19)); |
| 535 | } |
| 536 | |
| 537 | /* |
| 538 | * rcsparse_textrevision() |
| 539 | * |
| 540 | * Called upon reaching a new REVISION entry in the delta text section. |
| 541 | * pdp->rp_delta will be set to REVISION's delta (created in delta section) |
| 542 | * for further parsing. |
| 543 | * |
| 544 | * REVISION |
| 545 | * |
| 546 | * Returns 0 on success or 1 on failure. |
| 547 | */ |
| 548 | static int |
| 549 | rcsparse_textrevision(RCSFILE *rfp, struct rcs_pdata *pdp) |
| 550 | { |
| 551 | struct rcs_delta *rdp; |
| 552 | |
| 553 | TAILQ_FOREACH(rdp, &rfp->rf_delta, rd_list)for((rdp) = ((&rfp->rf_delta)->tqh_first); (rdp) != ((void *)0); (rdp) = ((rdp)->rd_list.tqe_next)) { |
| 554 | if (rcsnum_cmp(rdp->rd_num, pdp->rp_value.rev, 0) == 0) |
| 555 | break; |
| 556 | } |
| 557 | if (rdp == NULL((void *)0)) { |
| 558 | rcsparse_warnx(rfp, "delta for revision \"%s\" not found", |
| 559 | pdp->rp_buf); |
| 560 | free(pdp->rp_value.rev); |
| 561 | return (1); |
| 562 | } |
| 563 | pdp->rp_delta = rdp; |
| 564 | |
| 565 | free(pdp->rp_value.rev); |
| 566 | return (0); |
| 567 | } |
| 568 | |
| 569 | /* |
| 570 | * rcsparse_log() |
| 571 | * |
| 572 | * Parses the specified log of current deltatext pdp->rp_delta. |
| 573 | * |
| 574 | * log @[...]@ |
| 575 | * |
| 576 | * Returns 0 on success or 1 on failure. |
| 577 | */ |
| 578 | static int |
| 579 | rcsparse_log(RCSFILE *rfp, struct rcs_pdata *pdp) |
| 580 | { |
| 581 | if (rcsparse_token(rfp, RCS_TYPE_STRING(1 << 20)) != RCS_TYPE_STRING(1 << 20)) |
| 582 | return (1); |
| 583 | |
| 584 | pdp->rp_delta->rd_log = pdp->rp_value.str; |
| 585 | |
| 586 | return (0); |
| 587 | } |
| 588 | |
| 589 | /* |
| 590 | * rcsparse_text() |
| 591 | * |
| 592 | * Parses the specified text of current deltatext pdp->rp_delta. |
| 593 | * |
| 594 | * text @[...]@ |
| 595 | * |
| 596 | * Returns 0 on success or 1 on failure. |
| 597 | */ |
| 598 | static int |
| 599 | rcsparse_text(RCSFILE *rfp, struct rcs_pdata *pdp) |
| 600 | { |
| 601 | if (rcsparse_token(rfp, RCS_TYPE_STRING(1 << 20)) != RCS_TYPE_STRING(1 << 20)) |
| 602 | return (1); |
| 603 | |
| 604 | pdp->rp_delta->rd_tlen = pdp->rp_tlen - 1; |
| 605 | if (pdp->rp_delta->rd_tlen == 0) { |
| 606 | pdp->rp_delta->rd_text = xstrdup(""); |
| 607 | } else { |
| 608 | pdp->rp_delta->rd_text = xmalloc(pdp->rp_delta->rd_tlen); |
| 609 | memcpy(pdp->rp_delta->rd_text, pdp->rp_buf, |
| 610 | pdp->rp_delta->rd_tlen); |
| 611 | } |
| 612 | free(pdp->rp_value.str); |
| 613 | |
| 614 | return (0); |
| 615 | } |
| 616 | |
| 617 | /* |
| 618 | * rcsparse_head() |
| 619 | * |
| 620 | * Parses the head revision of RCS file <rfp>. |
| 621 | * |
| 622 | * head [REVISION]; |
| 623 | * |
| 624 | * Returns 0 on success or 1 on failure. |
| 625 | */ |
| 626 | static int |
| 627 | rcsparse_head(RCSFILE *rfp, struct rcs_pdata *pdp) |
| 628 | { |
| 629 | int type; |
| 630 | |
| 631 | type = rcsparse_token(rfp, RCS_TYPE_REVISION(1 << 23)|RCS_TOK_SCOLON(1 << 19)); |
| 632 | if (type == RCS_TYPE_REVISION(1 << 23)) { |
| 633 | rfp->rf_head = pdp->rp_value.rev; |
| 634 | type = rcsparse_token(rfp, RCS_TOK_SCOLON(1 << 19)); |
| 635 | } |
| 636 | |
| 637 | return (type != RCS_TOK_SCOLON(1 << 19)); |
| 638 | } |
| 639 | |
| 640 | /* |
| 641 | * rcsparse_branch() |
| 642 | * |
| 643 | * Parses the default branch of RCS file <rfp>. The branch keyword is |
| 644 | * optional and can be omitted. |
| 645 | * |
| 646 | * [branch BRANCH;] |
| 647 | * |
| 648 | * Returns 0 on success or 1 on failure. |
| 649 | */ |
| 650 | static int |
| 651 | rcsparse_branch(RCSFILE *rfp, struct rcs_pdata *pdp) |
| 652 | { |
| 653 | int type; |
| 654 | |
| 655 | type = rcsparse_token(rfp, RCS_TYPE_BRANCH(1 << 22)|RCS_TOK_SCOLON(1 << 19)); |
| 656 | if (type == RCS_TYPE_BRANCH(1 << 22)) { |
| 657 | rfp->rf_branch = pdp->rp_value.rev; |
| 658 | type = rcsparse_token(rfp, RCS_TOK_SCOLON(1 << 19)); |
| 659 | } |
| 660 | |
| 661 | return (type != RCS_TOK_SCOLON(1 << 19)); |
| 662 | } |
| 663 | |
| 664 | /* |
| 665 | * rcsparse_access() |
| 666 | * |
| 667 | * Parses the access list of RCS file <rfp>. |
| 668 | * |
| 669 | * access [LOGIN ...]; |
| 670 | * |
| 671 | * Returns 0 on success or 1 on failure. |
| 672 | */ |
| 673 | static int |
| 674 | rcsparse_access(RCSFILE *rfp, struct rcs_pdata *pdp) |
| 675 | { |
| 676 | struct rcs_access *ap; |
| 677 | int type; |
| 678 | |
| 679 | while ((type = rcsparse_token(rfp, RCS_TOK_SCOLON(1 << 19)|RCS_TYPE_LOGIN(1 << 24))) |
| 680 | == RCS_TYPE_LOGIN(1 << 24)) { |
| 681 | ap = xmalloc(sizeof(*ap)); |
| 682 | ap->ra_name = pdp->rp_value.str; |
| 683 | TAILQ_INSERT_TAIL(&(rfp->rf_access), ap, ra_list)do { (ap)->ra_list.tqe_next = ((void *)0); (ap)->ra_list .tqe_prev = (&(rfp->rf_access))->tqh_last; *(&( rfp->rf_access))->tqh_last = (ap); (&(rfp->rf_access ))->tqh_last = &(ap)->ra_list.tqe_next; } while (0); |
| 684 | } |
| 685 | |
| 686 | return (type != RCS_TOK_SCOLON(1 << 19)); |
| 687 | } |
| 688 | |
| 689 | /* |
| 690 | * rcsparse_symbols() |
| 691 | * |
| 692 | * Parses the symbol list of RCS file <rfp>. |
| 693 | * |
| 694 | * symbols [SYMBOL:REVISION ...]; |
| 695 | * |
| 696 | * Returns 0 on success or 1 on failure. |
| 697 | */ |
| 698 | static int |
| 699 | rcsparse_symbols(RCSFILE *rfp, struct rcs_pdata *pdp) |
| 700 | { |
| 701 | struct rcs_sym *symp; |
| 702 | char *name; |
| 703 | int type; |
| 704 | |
| 705 | while ((type = rcsparse_token(rfp, RCS_TOK_SCOLON(1 << 19)|RCS_TYPE_SYMBOL(1 << 26))) == |
| 706 | RCS_TYPE_SYMBOL(1 << 26)) { |
| 707 | name = pdp->rp_value.str; |
| 708 | if (rcsparse_token(rfp, RCS_TOK_COLON(1 << 17)) != RCS_TOK_COLON(1 << 17) || |
| 709 | rcsparse_token(rfp, RCS_TYPE_NUMBER(1 << 21)) != RCS_TYPE_NUMBER(1 << 21)) { |
| 710 | free(name); |
| 711 | return (1); |
| 712 | } |
| 713 | symp = xmalloc(sizeof(*symp)); |
| 714 | symp->rs_name = name; |
| 715 | symp->rs_num = pdp->rp_value.rev; |
| 716 | TAILQ_INSERT_TAIL(&(rfp->rf_symbols), symp, rs_list)do { (symp)->rs_list.tqe_next = ((void *)0); (symp)->rs_list .tqe_prev = (&(rfp->rf_symbols))->tqh_last; *(& (rfp->rf_symbols))->tqh_last = (symp); (&(rfp->rf_symbols ))->tqh_last = &(symp)->rs_list.tqe_next; } while ( 0); |
| 717 | } |
| 718 | |
| 719 | return (type != RCS_TOK_SCOLON(1 << 19)); |
| 720 | } |
| 721 | |
| 722 | /* |
| 723 | * rcsparse_locks() |
| 724 | * |
| 725 | * Parses the lock list of RCS file <rfp>. |
| 726 | * |
| 727 | * locks [SYMBOL:REVISION ...]; |
| 728 | * |
| 729 | * Returns 0 on success or 1 on failure. |
| 730 | */ |
| 731 | static int |
| 732 | rcsparse_locks(RCSFILE *rfp, struct rcs_pdata *pdp) |
| 733 | { |
| 734 | struct rcs_lock *lkp; |
| 735 | char *name; |
| 736 | int type; |
| 737 | |
| 738 | while ((type = rcsparse_token(rfp, RCS_TOK_SCOLON(1 << 19)|RCS_TYPE_LOGIN(1 << 24))) == |
| 739 | RCS_TYPE_LOGIN(1 << 24)) { |
| 740 | name = pdp->rp_value.str; |
| 741 | if (rcsparse_token(rfp, RCS_TOK_COLON(1 << 17)) != RCS_TOK_COLON(1 << 17) || |
| 742 | rcsparse_token(rfp, RCS_TYPE_REVISION(1 << 23)) != |
| 743 | RCS_TYPE_REVISION(1 << 23)) { |
| 744 | free(name); |
| 745 | return (1); |
| 746 | } |
| 747 | lkp = xmalloc(sizeof(*lkp)); |
| 748 | lkp->rl_name = name; |
| 749 | lkp->rl_num = pdp->rp_value.rev; |
| 750 | TAILQ_INSERT_TAIL(&(rfp->rf_locks), lkp, rl_list)do { (lkp)->rl_list.tqe_next = ((void *)0); (lkp)->rl_list .tqe_prev = (&(rfp->rf_locks))->tqh_last; *(&(rfp ->rf_locks))->tqh_last = (lkp); (&(rfp->rf_locks ))->tqh_last = &(lkp)->rl_list.tqe_next; } while (0 ); |
| 751 | } |
| 752 | |
| 753 | return (type != RCS_TOK_SCOLON(1 << 19)); |
| 754 | } |
| 755 | |
| 756 | /* |
| 757 | * rcsparse_locks() |
| 758 | * |
| 759 | * Parses the strict keyword of RCS file <rfp>. The strict keyword is |
| 760 | * optional and can be omitted. |
| 761 | * |
| 762 | * [strict;] |
| 763 | * |
| 764 | * Returns 0 on success or 1 on failure. |
| 765 | */ |
| 766 | static int |
| 767 | rcsparse_strict(RCSFILE *rfp, struct rcs_pdata *pdp) |
| 768 | { |
| 769 | rfp->rf_flags |= RCS_SLOCK(1<<6); |
| 770 | |
| 771 | return (rcsparse_token(rfp, RCS_TOK_SCOLON(1 << 19)) != RCS_TOK_SCOLON(1 << 19)); |
| 772 | } |
| 773 | |
| 774 | /* |
| 775 | * rcsparse_comment() |
| 776 | * |
| 777 | * Parses the comment of RCS file <rfp>. The comment keyword is optional |
| 778 | * and can be omitted. |
| 779 | * |
| 780 | * [comment [@[...]@];] |
| 781 | * |
| 782 | * Returns 0 on success or 1 on failure. |
| 783 | */ |
| 784 | static int |
| 785 | rcsparse_comment(RCSFILE *rfp, struct rcs_pdata *pdp) |
| 786 | { |
| 787 | int type; |
| 788 | |
| 789 | type = rcsparse_token(rfp, RCS_TYPE_STRING(1 << 20)|RCS_TOK_SCOLON(1 << 19)); |
| 790 | if (type == RCS_TYPE_STRING(1 << 20)) { |
| 791 | rfp->rf_comment = pdp->rp_value.str; |
| 792 | type = rcsparse_token(rfp, RCS_TOK_SCOLON(1 << 19)); |
| 793 | } |
| 794 | |
| 795 | return (type != RCS_TOK_SCOLON(1 << 19)); |
| 796 | } |
| 797 | |
| 798 | /* |
| 799 | * rcsparse_expand() |
| 800 | * |
| 801 | * Parses expand of RCS file <rfp>. The expand keyword is optional and |
| 802 | * can be omitted. |
| 803 | * |
| 804 | * [expand [@[...]@];] |
| 805 | * |
| 806 | * Returns 0 on success or 1 on failure. |
| 807 | */ |
| 808 | static int |
| 809 | rcsparse_expand(RCSFILE *rfp, struct rcs_pdata *pdp) |
| 810 | { |
| 811 | int type; |
| 812 | |
| 813 | type = rcsparse_token(rfp, RCS_TYPE_STRING(1 << 20)|RCS_TOK_SCOLON(1 << 19)); |
| 814 | if (type == RCS_TYPE_STRING(1 << 20)) { |
| 815 | rfp->rf_expand = pdp->rp_value.str; |
| 816 | type = rcsparse_token(rfp, RCS_TOK_SCOLON(1 << 19)); |
| 817 | } |
| 818 | |
| 819 | return (type != RCS_TOK_SCOLON(1 << 19)); |
| 820 | } |
| 821 | |
| 822 | #define RBUF_PUTC(ch)do { if (bp == pdp->rp_bufend - 1) { len = bp - pdp->rp_buf ; rcsparse_growbuf(rfp); bp = pdp->rp_buf + len; } *(bp++) = (ch); pdp->rp_tlen++; } while (0); \ |
| 823 | do { \ |
| 824 | if (bp == pdp->rp_bufend - 1) { \ |
| 825 | len = bp - pdp->rp_buf; \ |
| 826 | rcsparse_growbuf(rfp); \ |
| 827 | bp = pdp->rp_buf + len; \ |
| 828 | } \ |
| 829 | *(bp++) = (ch); \ |
| 830 | pdp->rp_tlen++; \ |
| 831 | } while (0); |
| 832 | |
| 833 | static int |
| 834 | rcsparse_string(RCSFILE *rfp, int allowed) |
| 835 | { |
| 836 | struct rcs_pdata *pdp; |
| 837 | int c; |
| 838 | size_t len; |
| 839 | char *bp; |
| 840 | |
| 841 | pdp = (struct rcs_pdata *)rfp->rf_pdata; |
| 842 | |
| 843 | bp = pdp->rp_buf; |
| 844 | pdp->rp_tlen = 0; |
| 845 | *bp = '\0'; |
| 846 | |
| 847 | for (;;) { |
| 848 | c = getc(rfp->rf_file)(!__isthreaded ? (--(rfp->rf_file)->_r < 0 ? __srget (rfp->rf_file) : (int)(*(rfp->rf_file)->_p++)) : (getc )(rfp->rf_file)); |
| 849 | if (c == '@') { |
| 850 | c = getc(rfp->rf_file)(!__isthreaded ? (--(rfp->rf_file)->_r < 0 ? __srget (rfp->rf_file) : (int)(*(rfp->rf_file)->_p++)) : (getc )(rfp->rf_file)); |
| 851 | if (c == EOF(-1)) { |
| 852 | return (EOF(-1)); |
| 853 | } else if (c != '@') { |
| 854 | ungetc(c, rfp->rf_file); |
| 855 | break; |
| 856 | } |
| 857 | } |
| 858 | |
| 859 | if (c == EOF(-1)) { |
| 860 | return (EOF(-1)); |
| 861 | } else if (c == '\n') |
| 862 | pdp->rp_lineno++; |
| 863 | |
| 864 | RBUF_PUTC(c)do { if (bp == pdp->rp_bufend - 1) { len = bp - pdp->rp_buf ; rcsparse_growbuf(rfp); bp = pdp->rp_buf + len; } *(bp++) = (c); pdp->rp_tlen++; } while (0);; |
| 865 | } |
| 866 | |
| 867 | bp = pdp->rp_buf + pdp->rp_tlen; |
| 868 | RBUF_PUTC('\0')do { if (bp == pdp->rp_bufend - 1) { len = bp - pdp->rp_buf ; rcsparse_growbuf(rfp); bp = pdp->rp_buf + len; } *(bp++) = ('\0'); pdp->rp_tlen++; } while (0);; |
| 869 | |
| 870 | if (!(allowed & RCS_TYPE_STRING(1 << 20))) { |
| 871 | rcsparse_warnx(rfp, "unexpected RCS string"); |
| 872 | return (0); |
| 873 | } |
| 874 | |
| 875 | pdp->rp_value.str = xstrdup(pdp->rp_buf); |
| 876 | |
| 877 | return (RCS_TYPE_STRING(1 << 20)); |
| 878 | } |
| 879 | |
| 880 | static int |
| 881 | rcsparse_token(RCSFILE *rfp, int allowed) |
| 882 | { |
| 883 | const struct rcs_keyword *p; |
| 884 | struct rcs_pdata *pdp; |
| 885 | int c, pre, ret, type; |
| 886 | char *bp; |
| 887 | size_t len; |
| 888 | RCSNUM *datenum; |
| 889 | |
| 890 | pdp = (struct rcs_pdata *)rfp->rf_pdata; |
| 891 | |
| 892 | if (pdp->rp_token != -1) { |
| 893 | /* no need to check for allowed here */ |
| 894 | type = pdp->rp_token; |
| 895 | pdp->rp_token = -1; |
| 896 | return (type); |
| 897 | } |
| 898 | |
| 899 | /* skip whitespaces */ |
| 900 | c = EOF(-1); |
| 901 | do { |
| 902 | pre = c; |
| 903 | c = getc(rfp->rf_file)(!__isthreaded ? (--(rfp->rf_file)->_r < 0 ? __srget (rfp->rf_file) : (int)(*(rfp->rf_file)->_p++)) : (getc )(rfp->rf_file)); |
| 904 | if (c == EOF(-1)) { |
| 905 | if (ferror(rfp->rf_file)(!__isthreaded ? (((rfp->rf_file)->_flags & 0x0040) != 0) : (ferror)(rfp->rf_file))) { |
| 906 | rcsparse_warnx(rfp, "error during parsing"); |
| 907 | return (0); |
| 908 | } |
| 909 | if (pre != '\n') |
| 910 | rcsparse_warnx(rfp, |
| 911 | "no newline at end of file"); |
| 912 | return (EOF(-1)); |
| 913 | } else if (c == '\n') |
| 914 | pdp->rp_lineno++; |
| 915 | } while (isspace(c)); |
| 916 | |
| 917 | pdp->rp_msglineno = pdp->rp_lineno; |
| 918 | type = 0; |
| 919 | switch (c) { |
| 920 | case '@': |
| 921 | ret = rcsparse_string(rfp, allowed); |
| 922 | if (ret == EOF(-1) && ferror(rfp->rf_file)(!__isthreaded ? (((rfp->rf_file)->_flags & 0x0040) != 0) : (ferror)(rfp->rf_file))) { |
| 923 | rcsparse_warnx(rfp, "error during parsing"); |
| 924 | return (0); |
| 925 | } |
| 926 | return (ret); |
| 927 | /* NOTREACHED */ |
| 928 | case ':': |
| 929 | type = RCS_TOK_COLON(1 << 17); |
| 930 | if (type & allowed) |
| 931 | return (type); |
| 932 | rcsparse_warnx(rfp, "unexpected token \"%c\"", c); |
| 933 | return (0); |
| 934 | /* NOTREACHED */ |
| 935 | case ';': |
| 936 | type = RCS_TOK_SCOLON(1 << 19); |
| 937 | if (type & allowed) |
| 938 | return (type); |
| 939 | rcsparse_warnx(rfp, "unexpected token \"%c\"", c); |
| 940 | return (0); |
| 941 | /* NOTREACHED */ |
| 942 | case ',': |
| 943 | type = RCS_TOK_COMMA(1 << 18); |
| 944 | if (type & allowed) |
| 945 | return (type); |
| 946 | rcsparse_warnx(rfp, "unexpected token \"%c\"", c); |
| 947 | return (0); |
| 948 | /* NOTREACHED */ |
| 949 | default: |
| 950 | if (!isgraph(c)) { |
| 951 | rcsparse_warnx(rfp, "unexpected character 0x%.2X", c); |
| 952 | return (0); |
| 953 | } |
| 954 | break; |
| 955 | } |
| 956 | allowed &= ~(RCS_TOK_COLON(1 << 17)|RCS_TOK_SCOLON(1 << 19)|RCS_TOK_COMMA(1 << 18)); |
| 957 | |
| 958 | bp = pdp->rp_buf; |
| 959 | pdp->rp_tlen = 0; |
| 960 | *bp = '\0'; |
| 961 | |
| 962 | for (;;) { |
| 963 | if (c == EOF(-1)) { |
| 964 | if (ferror(rfp->rf_file)(!__isthreaded ? (((rfp->rf_file)->_flags & 0x0040) != 0) : (ferror)(rfp->rf_file))) |
| 965 | rcsparse_warnx(rfp, "error during parsing"); |
| 966 | else |
| 967 | rcsparse_warnx(rfp, "unexpected end of file"); |
| 968 | return (0); |
| 969 | } else if (c == '\n') |
| 970 | pdp->rp_lineno++; |
| 971 | |
| 972 | RBUF_PUTC(c)do { if (bp == pdp->rp_bufend - 1) { len = bp - pdp->rp_buf ; rcsparse_growbuf(rfp); bp = pdp->rp_buf + len; } *(bp++) = (c); pdp->rp_tlen++; } while (0);; |
| 973 | |
| 974 | c = getc(rfp->rf_file)(!__isthreaded ? (--(rfp->rf_file)->_r < 0 ? __srget (rfp->rf_file) : (int)(*(rfp->rf_file)->_p++)) : (getc )(rfp->rf_file)); |
| 975 | |
| 976 | if (isspace(c)) { |
| 977 | if (c == '\n') |
| 978 | pdp->rp_lineno++; |
| 979 | RBUF_PUTC('\0')do { if (bp == pdp->rp_bufend - 1) { len = bp - pdp->rp_buf ; rcsparse_growbuf(rfp); bp = pdp->rp_buf + len; } *(bp++) = ('\0'); pdp->rp_tlen++; } while (0);; |
| 980 | break; |
| 981 | } else if (c == ';' || c == ':' || c == ',') { |
| 982 | ungetc(c, rfp->rf_file); |
| 983 | RBUF_PUTC('\0')do { if (bp == pdp->rp_bufend - 1) { len = bp - pdp->rp_buf ; rcsparse_growbuf(rfp); bp = pdp->rp_buf + len; } *(bp++) = ('\0'); pdp->rp_tlen++; } while (0);; |
| 984 | break; |
| 985 | } else if (!isgraph(c)) { |
| 986 | rcsparse_warnx(rfp, "unexpected character 0x%.2X", c); |
| 987 | return (0); |
| 988 | } |
| 989 | } |
| 990 | |
| 991 | switch (allowed) { |
| 992 | case RCS_TYPE_COMMITID(1 << 29): |
| 993 | if (!valid_commitid(pdp->rp_buf)) { |
| 994 | rcsparse_warnx(rfp, "invalid commitid \"%s\"", |
| 995 | pdp->rp_buf); |
| 996 | return (0); |
| 997 | } |
| 998 | pdp->rp_value.str = xstrdup(pdp->rp_buf); |
| 999 | break; |
| 1000 | case RCS_TYPE_LOGIN(1 << 24): |
| 1001 | if (!valid_login(pdp->rp_buf)) { |
| 1002 | rcsparse_warnx(rfp, "invalid login \"%s\"", |
| 1003 | pdp->rp_buf); |
| 1004 | return (0); |
| 1005 | } |
| 1006 | pdp->rp_value.str = xstrdup(pdp->rp_buf); |
| 1007 | break; |
| 1008 | case RCS_TYPE_SYMBOL(1 << 26): |
| 1009 | if (!rcs_sym_check(pdp->rp_buf)) { |
| 1010 | rcsparse_warnx(rfp, "invalid symbol \"%s\"", |
| 1011 | pdp->rp_buf); |
| 1012 | return (0); |
| 1013 | } |
| 1014 | pdp->rp_value.str = xstrdup(pdp->rp_buf); |
| 1015 | break; |
| 1016 | /* FALLTHROUGH */ |
| 1017 | case RCS_TYPE_STATE(1 << 25): |
| 1018 | if (rcs_state_check(pdp->rp_buf)) { |
| 1019 | rcsparse_warnx(rfp, "invalid state \"%s\"", |
| 1020 | pdp->rp_buf); |
| 1021 | return (0); |
| 1022 | } |
| 1023 | pdp->rp_value.str = xstrdup(pdp->rp_buf); |
| 1024 | break; |
| 1025 | case RCS_TYPE_DATE(1 << 27): |
| 1026 | if ((datenum = rcsnum_parse(pdp->rp_buf)) == NULL((void *)0)) { |
| 1027 | rcsparse_warnx(rfp, "invalid date \"%s\"", pdp->rp_buf); |
| 1028 | return (0); |
| 1029 | } |
| 1030 | if (datenum->rn_len != 6) { |
| 1031 | free(datenum); |
| 1032 | rcsparse_warnx(rfp, "invalid date \"%s\"", pdp->rp_buf); |
| 1033 | return (0); |
| 1034 | } |
| 1035 | pdp->rp_value.date.tm_year = datenum->rn_id[0]; |
| 1036 | if (pdp->rp_value.date.tm_year >= 1900) |
| 1037 | pdp->rp_value.date.tm_year -= 1900; |
| 1038 | pdp->rp_value.date.tm_mon = datenum->rn_id[1] - 1; |
| 1039 | pdp->rp_value.date.tm_mday = datenum->rn_id[2]; |
| 1040 | pdp->rp_value.date.tm_hour = datenum->rn_id[3]; |
| 1041 | pdp->rp_value.date.tm_min = datenum->rn_id[4]; |
| 1042 | pdp->rp_value.date.tm_sec = datenum->rn_id[5]; |
| 1043 | free(datenum); |
| 1044 | break; |
| 1045 | case RCS_TYPE_NUMBER(1 << 21): |
| 1046 | pdp->rp_value.rev = rcsnum_parse(pdp->rp_buf); |
| 1047 | if (pdp->rp_value.rev == NULL((void *)0)) { |
| 1048 | rcsparse_warnx(rfp, "invalid number \"%s\"", |
| 1049 | pdp->rp_buf); |
| 1050 | return (0); |
| 1051 | } |
| 1052 | break; |
| 1053 | case RCS_TYPE_BRANCH(1 << 22): |
| 1054 | pdp->rp_value.rev = rcsnum_parse(pdp->rp_buf); |
| 1055 | if (pdp->rp_value.rev == NULL((void *)0)) { |
| 1056 | rcsparse_warnx(rfp, "invalid branch \"%s\"", |
| 1057 | pdp->rp_buf); |
| 1058 | return (0); |
| 1059 | } |
| 1060 | if (!RCSNUM_ISBRANCH(pdp->rp_value.rev)((pdp->rp_value.rev)->rn_len % 2)) { |
| 1061 | free(pdp->rp_value.rev); |
| 1062 | rcsparse_warnx(rfp, "expected branch, got \"%s\"", |
| 1063 | pdp->rp_buf); |
| 1064 | return (0); |
| 1065 | } |
| 1066 | break; |
| 1067 | case RCS_TYPE_KEYWORD(1 << 28): |
| 1068 | if (islower(*pdp->rp_buf)) { |
| 1069 | p = bsearch(pdp->rp_buf, keywords, |
| 1070 | sizeof(keywords) / sizeof(keywords[0]), |
| 1071 | sizeof(keywords[0]), kw_cmp); |
| 1072 | if (p != NULL((void *)0)) |
| 1073 | return (p->k_val); |
| 1074 | } |
| 1075 | allowed = RCS_TYPE_REVISION(1 << 23); |
| 1076 | /* FALLTHROUGH */ |
| 1077 | case RCS_TYPE_REVISION(1 << 23): |
| 1078 | pdp->rp_value.rev = rcsnum_parse(pdp->rp_buf); |
| 1079 | if (pdp->rp_value.rev != NULL((void *)0)) { |
| 1080 | if (RCSNUM_ISBRANCH(pdp->rp_value.rev)((pdp->rp_value.rev)->rn_len % 2)) { |
| 1081 | free(pdp->rp_value.rev); |
| 1082 | rcsparse_warnx(rfp, |
| 1083 | "expected revision, got \"%s\"", |
| 1084 | pdp->rp_buf); |
| 1085 | return (0); |
| 1086 | } |
| 1087 | break; |
| 1088 | } |
| 1089 | /* FALLTHROUGH */ |
| 1090 | default: |
| 1091 | RBUF_PUTC('\0')do { if (bp == pdp->rp_bufend - 1) { len = bp - pdp->rp_buf ; rcsparse_growbuf(rfp); bp = pdp->rp_buf + len; } *(bp++) = ('\0'); pdp->rp_tlen++; } while (0);; |
| 1092 | rcsparse_warnx(rfp, "unexpected token \"%s\"", pdp->rp_buf); |
| 1093 | return (0); |
| 1094 | /* NOTREACHED */ |
| 1095 | } |
| 1096 | |
| 1097 | return (allowed); |
| 1098 | } |
| 1099 | |
| 1100 | static int |
| 1101 | rcsparse(RCSFILE *rfp, struct rcs_section *sec) |
| 1102 | { |
| 1103 | struct rcs_pdata *pdp; |
| 1104 | int i, token; |
| 1105 | |
| 1106 | pdp = (struct rcs_pdata *)rfp->rf_pdata; |
| 1107 | i = 0; |
Value stored to 'i' is never read | |
| 1108 | |
| 1109 | token = 0; |
| 1110 | for (i = 0; sec[i].token != 0; i++) { |
| 1111 | token = rcsparse_token(rfp, RCS_TYPE_KEYWORD(1 << 28)); |
| 1112 | if (token == 0) |
| 1113 | return (1); |
| 1114 | |
| 1115 | while (token != sec[i].token) { |
| 1116 | if (sec[i].parse == NULL((void *)0)) |
| 1117 | goto end; |
| 1118 | if (sec[i].opt) { |
| 1119 | i++; |
| 1120 | continue; |
| 1121 | } |
| 1122 | if (token == EOF(-1) || (!(rfp->rf_flags & PARSED_DELTAS(1<<7)) && |
| 1123 | token == RCS_TOK_DESC(1 << 9))) |
| 1124 | goto end; |
| 1125 | rcsparse_warnx(rfp, "unexpected token \"%s\"", |
| 1126 | pdp->rp_buf); |
| 1127 | return (1); |
| 1128 | } |
| 1129 | |
| 1130 | if (sec[i].parse(rfp, pdp)) |
| 1131 | return (1); |
| 1132 | } |
| 1133 | end: |
| 1134 | if (token == RCS_TYPE_REVISION(1 << 23)) |
| 1135 | pdp->rp_token = token; |
| 1136 | else if (token == RCS_TOK_DESC(1 << 9)) |
| 1137 | pdp->rp_token = RCS_TOK_DESC(1 << 9); |
| 1138 | else if (token == EOF(-1)) |
| 1139 | rfp->rf_flags |= RCS_PARSED(1<<4); |
| 1140 | |
| 1141 | return (0); |
| 1142 | } |
| 1143 | |
| 1144 | static int |
| 1145 | rcsparse_deltatext(RCSFILE *rfp) |
| 1146 | { |
| 1147 | int ret; |
| 1148 | |
| 1149 | if (rfp->rf_flags & PARSED_DELTATEXTS(1<<9)) |
| 1150 | return (0); |
| 1151 | |
| 1152 | if (!(rfp->rf_flags & PARSED_DESC(1<<8))) |
| 1153 | if ((ret = rcsparse_desc(rfp))) |
| 1154 | return (ret); |
| 1155 | |
| 1156 | if (rcsparse(rfp, sec_deltatext)) |
| 1157 | return (-1); |
| 1158 | |
| 1159 | if (rfp->rf_flags & RCS_PARSED(1<<4)) |
| 1160 | rfp->rf_flags |= PARSED_DELTATEXTS(1<<9); |
| 1161 | |
| 1162 | return (1); |
| 1163 | } |
| 1164 | |
| 1165 | static int |
| 1166 | rcsparse_delta(RCSFILE *rfp) |
| 1167 | { |
| 1168 | struct rcs_pdata *pdp; |
| 1169 | |
| 1170 | if (rfp->rf_flags & PARSED_DELTAS(1<<7)) |
| 1171 | return (0); |
| 1172 | |
| 1173 | pdp = (struct rcs_pdata *)rfp->rf_pdata; |
| 1174 | if (pdp->rp_token == RCS_TOK_DESC(1 << 9)) { |
| 1175 | rfp->rf_flags |= PARSED_DELTAS(1<<7); |
| 1176 | return (0); |
| 1177 | } |
| 1178 | |
| 1179 | if (rcsparse(rfp, sec_delta)) |
| 1180 | return (-1); |
| 1181 | |
| 1182 | if (pdp->rp_delta != NULL((void *)0)) { |
| 1183 | TAILQ_INSERT_TAIL(&rfp->rf_delta, pdp->rp_delta, rd_list)do { (pdp->rp_delta)->rd_list.tqe_next = ((void *)0); ( pdp->rp_delta)->rd_list.tqe_prev = (&rfp->rf_delta )->tqh_last; *(&rfp->rf_delta)->tqh_last = (pdp-> rp_delta); (&rfp->rf_delta)->tqh_last = &(pdp-> rp_delta)->rd_list.tqe_next; } while (0); |
| 1184 | pdp->rp_delta = NULL((void *)0); |
| 1185 | rfp->rf_ndelta++; |
| 1186 | return (1); |
| 1187 | } |
| 1188 | |
| 1189 | return (0); |
| 1190 | } |
| 1191 | |
| 1192 | /* |
| 1193 | * rcsparse_growbuf() |
| 1194 | * |
| 1195 | * Attempt to grow the internal parse buffer for the RCS file <rf> by |
| 1196 | * RCS_BUFEXTSIZE. |
| 1197 | * In case of failure, the original buffer is left unmodified. |
| 1198 | */ |
| 1199 | static void |
| 1200 | rcsparse_growbuf(RCSFILE *rfp) |
| 1201 | { |
| 1202 | struct rcs_pdata *pdp = (struct rcs_pdata *)rfp->rf_pdata; |
| 1203 | |
| 1204 | pdp->rp_buf = xreallocarray(pdp->rp_buf, 1, |
| 1205 | pdp->rp_blen + RCS_BUFEXTSIZE8192); |
| 1206 | pdp->rp_blen += RCS_BUFEXTSIZE8192; |
| 1207 | pdp->rp_bufend = pdp->rp_buf + pdp->rp_blen - 1; |
| 1208 | } |
| 1209 | |
| 1210 | /* |
| 1211 | * Borrowed from src/usr.sbin/user/user.c: |
| 1212 | * return 1 if `login' is a valid login name |
| 1213 | */ |
| 1214 | static int |
| 1215 | valid_login(char *login_name) |
| 1216 | { |
| 1217 | unsigned char *cp; |
| 1218 | |
| 1219 | /* The first character cannot be a hyphen */ |
| 1220 | if (*login_name == '-') |
| 1221 | return 0; |
| 1222 | |
| 1223 | for (cp = login_name ; *cp ; cp++) { |
| 1224 | /* We allow '$' as the last character for samba */ |
| 1225 | if (!isalnum(*cp) && *cp != '.' && *cp != '_' && *cp != '-' && |
| 1226 | !(*cp == '$' && *(cp + 1) == '\0')) { |
| 1227 | return 0; |
| 1228 | } |
| 1229 | } |
| 1230 | if ((char *)cp - login_name > _PW_NAME_LEN31) |
| 1231 | return 0; |
| 1232 | return 1; |
| 1233 | } |
| 1234 | |
| 1235 | static int |
| 1236 | valid_commitid(char *commitid) |
| 1237 | { |
| 1238 | unsigned char *cp; |
| 1239 | |
| 1240 | /* A-Za-z0-9 */ |
| 1241 | for (cp = commitid; *cp ; cp++) { |
| 1242 | if (!isalnum(*cp)) |
| 1243 | return 0; |
| 1244 | } |
| 1245 | if ((char *)cp - commitid > RCS_COMMITID_MAXLEN64) |
| 1246 | return 0; |
| 1247 | return 1; |
| 1248 | } |
| 1249 | |
| 1250 | static int |
| 1251 | kw_cmp(const void *k, const void *e) |
| 1252 | { |
| 1253 | return (strcmp(k, ((const struct rcs_keyword *)e)->k_name)); |
| 1254 | } |
| 1255 | |
| 1256 | static void |
| 1257 | rcsparse_warnx(RCSFILE *rfp, char *fmt, ...) |
| 1258 | { |
| 1259 | struct rcs_pdata *pdp; |
| 1260 | va_list ap; |
| 1261 | char *msg; |
| 1262 | |
| 1263 | pdp = (struct rcs_pdata *)rfp->rf_pdata; |
| 1264 | va_start(ap, fmt)__builtin_va_start((ap), fmt); |
| 1265 | if (vasprintf(&msg, fmt, ap) == -1) { |
| 1266 | cvs_log(LP_ERRNO2, "vasprintf"); |
| 1267 | va_end(ap)__builtin_va_end((ap)); |
| 1268 | return; |
| 1269 | } |
| 1270 | va_end(ap)__builtin_va_end((ap)); |
| 1271 | cvs_log(LP_ERR1, "%s:%d: %s", rfp->rf_path, pdp->rp_msglineno, msg); |
| 1272 | free(msg); |
| 1273 | } |