| 1 | /* Textual dumping of CTF data. |
| 2 | Copyright (C) 2019 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of libctf. |
| 5 | |
| 6 | libctf is free software; you can redistribute it and/or modify it under |
| 7 | the terms of the GNU General Public License as published by the Free |
| 8 | Software Foundation; either version 3, or (at your option) any later |
| 9 | version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, but |
| 12 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 14 | See the GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; see the file COPYING. If not see |
| 18 | <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #include <ctf-impl.h> |
| 21 | #include <string.h> |
| 22 | |
| 23 | /* One item to be dumped, in string form. */ |
| 24 | |
| 25 | typedef struct ctf_dump_item |
| 26 | { |
| 27 | ctf_list_t cdi_list; |
| 28 | char *cdi_item; |
| 29 | } ctf_dump_item_t; |
| 30 | |
| 31 | /* Cross-call state for dumping. Basically just enough to track the section in |
| 32 | use and a list of return strings. */ |
| 33 | |
| 34 | struct ctf_dump_state |
| 35 | { |
| 36 | ctf_sect_names_t cds_sect; |
| 37 | ctf_file_t *cds_fp; |
| 38 | ctf_dump_item_t *cds_current; |
| 39 | ctf_list_t cds_items; |
| 40 | }; |
| 41 | |
| 42 | /* Cross-call state for ctf_dump_member. */ |
| 43 | |
| 44 | typedef struct ctf_dump_membstate |
| 45 | { |
| 46 | char **cdm_str; |
| 47 | ctf_file_t *cdm_fp; |
| 48 | } ctf_dump_membstate_t; |
| 49 | |
| 50 | static int |
| 51 | ctf_dump_append (ctf_dump_state_t *state, char *str) |
| 52 | { |
| 53 | ctf_dump_item_t *cdi; |
| 54 | |
| 55 | if ((cdi = ctf_alloc (sizeof (struct ctf_dump_item))) == NULL) |
| 56 | return (ctf_set_errno (state->cds_fp, ENOMEM)); |
| 57 | |
| 58 | cdi->cdi_item = str; |
| 59 | ctf_list_append (&state->cds_items, cdi); |
| 60 | return 0; |
| 61 | } |
| 62 | |
| 63 | static void |
| 64 | ctf_dump_free (ctf_dump_state_t *state) |
| 65 | { |
| 66 | ctf_dump_item_t *cdi, *next_cdi; |
| 67 | |
| 68 | if (state == NULL) |
| 69 | return; |
| 70 | |
| 71 | for (cdi = ctf_list_next (&state->cds_items); cdi != NULL; |
| 72 | cdi = next_cdi) |
| 73 | { |
| 74 | free (cdi->cdi_item); |
| 75 | next_cdi = ctf_list_next (cdi); |
| 76 | ctf_free (cdi); |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | /* Slices need special handling to distinguish them from their referenced |
| 81 | type. */ |
| 82 | |
| 83 | static int |
| 84 | ctf_is_slice (ctf_file_t *fp, ctf_id_t id, ctf_encoding_t *enc) |
| 85 | { |
| 86 | int kind = ctf_type_kind (fp, id); |
| 87 | |
| 88 | return (((kind == CTF_K_INTEGER) || (kind == CTF_K_ENUM) |
| 89 | || (kind == CTF_K_FLOAT)) |
| 90 | && ctf_type_reference (fp, id) != CTF_ERR |
| 91 | && ctf_type_encoding (fp, id, enc) == 0); |
| 92 | } |
| 93 | |
| 94 | /* Return a dump for a single type, without member info: but do show the |
| 95 | type's references. */ |
| 96 | |
| 97 | static char * |
| 98 | ctf_dump_format_type (ctf_file_t *fp, ctf_id_t id) |
| 99 | { |
| 100 | ctf_id_t new_id; |
| 101 | char *str = NULL, *bit = NULL, *buf = NULL; |
| 102 | |
| 103 | new_id = id; |
| 104 | do |
| 105 | { |
| 106 | ctf_encoding_t enc; |
| 107 | |
| 108 | id = new_id; |
| 109 | buf = ctf_type_aname (fp, id); |
| 110 | if (!buf) |
| 111 | goto oom; |
| 112 | |
| 113 | /* Slices get a different print representation. */ |
| 114 | |
| 115 | if (ctf_is_slice (fp, id, &enc)) |
| 116 | { |
| 117 | ctf_type_encoding (fp, id, &enc); |
| 118 | if (asprintf (&bit, " %lx: [slice 0x%x:0x%x]", |
| 119 | id, enc.cte_offset, enc.cte_bits) < 0) |
| 120 | goto oom; |
| 121 | } |
| 122 | else |
| 123 | { |
| 124 | if (asprintf (&bit, " %lx: %s (size %lx)", id, buf[0] == '\0' ? |
| 125 | "(nameless)" : buf, |
| 126 | (unsigned long) ctf_type_size (fp, id)) < 0) |
| 127 | goto oom; |
| 128 | } |
| 129 | free (buf); |
| 130 | buf = NULL; |
| 131 | str = ctf_str_append (str, bit); |
| 132 | free (bit); |
| 133 | bit = NULL; |
| 134 | |
| 135 | new_id = ctf_type_reference (fp, id); |
| 136 | if (new_id != CTF_ERR) |
| 137 | str = ctf_str_append (str, " ->"); |
| 138 | } while (new_id != CTF_ERR); |
| 139 | |
| 140 | if (ctf_errno (fp) != ECTF_NOTREF) |
| 141 | { |
| 142 | free (str); |
| 143 | return NULL; |
| 144 | } |
| 145 | |
| 146 | return str; |
| 147 | |
| 148 | oom: |
| 149 | free (buf); |
| 150 | free (str); |
| 151 | free (bit); |
| 152 | ctf_set_errno (fp, ENOMEM); |
| 153 | return NULL; |
| 154 | } |
| 155 | |
| 156 | /* Dump a single label into the cds_items. */ |
| 157 | |
| 158 | static int |
| 159 | ctf_dump_label (const char *name, const ctf_lblinfo_t *info, |
| 160 | void *arg) |
| 161 | { |
| 162 | char *str; |
| 163 | char *typestr; |
| 164 | ctf_dump_state_t *state = arg; |
| 165 | |
| 166 | if (asprintf (&str, "%s -> ", name) < 0) |
| 167 | return (ctf_set_errno (state->cds_fp, ENOMEM)); |
| 168 | |
| 169 | if ((typestr = ctf_dump_format_type (state->cds_fp, info->ctb_type)) == NULL) |
| 170 | { |
| 171 | free (str); |
| 172 | return -1; /* errno is set for us. */ |
| 173 | } |
| 174 | |
| 175 | str = ctf_str_append (str, typestr); |
| 176 | free (typestr); |
| 177 | |
| 178 | ctf_dump_append (state, str); |
| 179 | return 0; |
| 180 | } |
| 181 | |
| 182 | /* Dump all the object entries into the cds_items. (There is no iterator for |
| 183 | this section, so we just do it in a loop, and this function handles all of |
| 184 | them, rather than only one. */ |
| 185 | |
| 186 | static int |
| 187 | ctf_dump_objts (ctf_file_t *fp, ctf_dump_state_t *state) |
| 188 | { |
| 189 | size_t i; |
| 190 | |
| 191 | for (i = 0; i < fp->ctf_nsyms; i++) |
| 192 | { |
| 193 | char *str; |
| 194 | char *typestr; |
| 195 | const char *sym_name; |
| 196 | ctf_id_t type; |
| 197 | |
| 198 | if ((type = ctf_lookup_by_symbol (state->cds_fp, i)) == CTF_ERR) |
| 199 | switch (ctf_errno (state->cds_fp)) |
| 200 | { |
| 201 | /* Most errors are just an indication that this symbol is not a data |
| 202 | symbol, but this one indicates that we were called wrong, on a |
| 203 | CTF file with no associated symbol table. */ |
| 204 | case ECTF_NOSYMTAB: |
| 205 | return -1; |
| 206 | case ECTF_NOTDATA: |
| 207 | case ECTF_NOTYPEDAT: |
| 208 | continue; |
| 209 | } |
| 210 | |
| 211 | /* Variable name. */ |
| 212 | sym_name = ctf_lookup_symbol_name (fp, i); |
| 213 | if (sym_name[0] == '\0') |
| 214 | { |
| 215 | if (asprintf (&str, "%lx -> ", (unsigned long) i) < 0) |
| 216 | return (ctf_set_errno (fp, ENOMEM)); |
| 217 | } |
| 218 | else |
| 219 | { |
| 220 | if (asprintf (&str, "%s (%lx) -> ", sym_name, (unsigned long) i) < 0) |
| 221 | return (ctf_set_errno (fp, ENOMEM)); |
| 222 | } |
| 223 | |
| 224 | /* Variable type. */ |
| 225 | if ((typestr = ctf_dump_format_type (state->cds_fp, type)) == NULL) |
| 226 | { |
| 227 | free (str); |
| 228 | return -1; /* errno is set for us. */ |
| 229 | } |
| 230 | |
| 231 | str = ctf_str_append (str, typestr); |
| 232 | free (typestr); |
| 233 | |
| 234 | ctf_dump_append (state, str); |
| 235 | } |
| 236 | return 0; |
| 237 | } |
| 238 | |
| 239 | /* Dump all the function entries into the cds_items. (As above, there is no |
| 240 | iterator for this section.) */ |
| 241 | |
| 242 | static int |
| 243 | ctf_dump_funcs (ctf_file_t *fp, ctf_dump_state_t *state) |
| 244 | { |
| 245 | size_t i; |
| 246 | |
| 247 | for (i = 0; i < fp->ctf_nsyms; i++) |
| 248 | { |
| 249 | char *str ; |
| 250 | char *bit; |
| 251 | const char *sym_name; |
| 252 | ctf_funcinfo_t fi; |
| 253 | ctf_id_t type; |
| 254 | size_t j; |
| 255 | ctf_id_t *args; |
| 256 | |
| 257 | if ((type = ctf_func_info (state->cds_fp, i, &fi)) == CTF_ERR) |
| 258 | switch (ctf_errno (state->cds_fp)) |
| 259 | { |
| 260 | /* Most errors are just an indication that this symbol is not a data |
| 261 | symbol, but this one indicates that we were called wrong, on a |
| 262 | CTF file with no associated symbol table. */ |
| 263 | case ECTF_NOSYMTAB: |
| 264 | return -1; |
| 265 | case ECTF_NOTDATA: |
| 266 | case ECTF_NOTYPEDAT: |
| 267 | continue; |
| 268 | } |
| 269 | if ((args = calloc (fi.ctc_argc, sizeof (ctf_id_t))) == NULL) |
| 270 | return (ctf_set_errno (fp, ENOMEM)); |
| 271 | |
| 272 | /* Return type. */ |
| 273 | if ((str = ctf_type_aname (state->cds_fp, type)) == NULL) |
| 274 | goto err; |
| 275 | |
| 276 | str = ctf_str_append (str, " "); |
| 277 | |
| 278 | /* Function name. */ |
| 279 | |
| 280 | sym_name = ctf_lookup_symbol_name (fp, i); |
| 281 | if (sym_name[0] == '\0') |
| 282 | { |
| 283 | if (asprintf (&bit, "%lx ", (unsigned long) i) < 0) |
| 284 | goto oom; |
| 285 | } |
| 286 | else |
| 287 | { |
| 288 | if (asprintf (&bit, "%s (%lx) ", sym_name, (unsigned long) i) < 0) |
| 289 | goto oom; |
| 290 | } |
| 291 | str = ctf_str_append (str, bit); |
| 292 | str = ctf_str_append (str, " ("); |
| 293 | free (bit); |
| 294 | |
| 295 | /* Function arguments. */ |
| 296 | |
| 297 | if (ctf_func_args (state->cds_fp, i, fi.ctc_argc, args) < 0) |
| 298 | goto err; |
| 299 | |
| 300 | for (j = 0; j < fi.ctc_argc; j++) |
| 301 | { |
| 302 | if ((bit = ctf_type_aname (state->cds_fp, args[j])) == NULL) |
| 303 | goto err; |
| 304 | str = ctf_str_append (str, bit); |
| 305 | if ((j < fi.ctc_argc - 1) || (fi.ctc_flags & CTF_FUNC_VARARG)) |
| 306 | str = ctf_str_append (str, ", "); |
| 307 | free (bit); |
| 308 | } |
| 309 | |
| 310 | if (fi.ctc_flags & CTF_FUNC_VARARG) |
| 311 | str = ctf_str_append (str, "..."); |
| 312 | str = ctf_str_append (str, ")"); |
| 313 | |
| 314 | free (args); |
| 315 | ctf_dump_append (state, str); |
| 316 | continue; |
| 317 | |
| 318 | oom: |
| 319 | free (args); |
| 320 | free (str); |
| 321 | return (ctf_set_errno (fp, ENOMEM)); |
| 322 | err: |
| 323 | free (args); |
| 324 | free (str); |
| 325 | return -1; /* errno is set for us. */ |
| 326 | } |
| 327 | return 0; |
| 328 | } |
| 329 | |
| 330 | /* Dump a single variable into the cds_items. */ |
| 331 | static int |
| 332 | ctf_dump_var (const char *name, ctf_id_t type, void *arg) |
| 333 | { |
| 334 | char *str; |
| 335 | char *typestr; |
| 336 | ctf_dump_state_t *state = arg; |
| 337 | |
| 338 | if (asprintf (&str, "%s -> ", name) < 0) |
| 339 | return (ctf_set_errno (state->cds_fp, ENOMEM)); |
| 340 | |
| 341 | if ((typestr = ctf_dump_format_type (state->cds_fp, type)) == NULL) |
| 342 | { |
| 343 | free (str); |
| 344 | return -1; /* errno is set for us. */ |
| 345 | } |
| 346 | |
| 347 | str = ctf_str_append (str, typestr); |
| 348 | free (typestr); |
| 349 | |
| 350 | ctf_dump_append (state, str); |
| 351 | return 0; |
| 352 | } |
| 353 | |
| 354 | /* Dump a single member into the string in the membstate. */ |
| 355 | static int |
| 356 | ctf_dump_member (const char *name, ctf_id_t id, unsigned long offset, |
| 357 | int depth, void *arg) |
| 358 | { |
| 359 | ctf_dump_membstate_t *state = arg; |
| 360 | char *typestr = NULL; |
| 361 | char *bit = NULL; |
| 362 | ctf_encoding_t ep; |
| 363 | ssize_t i; |
| 364 | |
| 365 | for (i = 0; i < depth; i++) |
| 366 | *state->cdm_str = ctf_str_append (*state->cdm_str, " "); |
| 367 | |
| 368 | if ((typestr = ctf_type_aname (state->cdm_fp, id)) == NULL) |
| 369 | goto oom; |
| 370 | |
| 371 | if (asprintf (&bit, " [0x%lx] (ID 0x%lx) (kind %i) %s %s (aligned at 0x%lx", |
| 372 | offset, id, ctf_type_kind (state->cdm_fp, id), typestr, name, |
| 373 | (unsigned long) ctf_type_align (state->cdm_fp, id)) < 0) |
| 374 | goto oom; |
| 375 | *state->cdm_str = ctf_str_append (*state->cdm_str, bit); |
| 376 | free (typestr); |
| 377 | free (bit); |
| 378 | typestr = NULL; |
| 379 | bit = NULL; |
| 380 | |
| 381 | if ((ctf_type_kind (state->cdm_fp, id) == CTF_K_INTEGER) |
| 382 | || (ctf_type_kind (state->cdm_fp, id) == CTF_K_FLOAT) |
| 383 | || (ctf_is_slice (state->cdm_fp, id, &ep) == CTF_K_ENUM)) |
| 384 | { |
| 385 | ctf_type_encoding (state->cdm_fp, id, &ep); |
| 386 | if (asprintf (&bit, ", format 0x%x, offset:bits 0x%x:0x%x", ep.cte_format, |
| 387 | ep.cte_offset, ep.cte_bits) < 0) |
| 388 | goto oom; |
| 389 | *state->cdm_str = ctf_str_append (*state->cdm_str, bit); |
| 390 | free (bit); |
| 391 | bit = NULL; |
| 392 | } |
| 393 | |
| 394 | *state->cdm_str = ctf_str_append (*state->cdm_str, ")\n"); |
| 395 | return 0; |
| 396 | |
| 397 | oom: |
| 398 | free (typestr); |
| 399 | free (bit); |
| 400 | return (ctf_set_errno (state->cdm_fp, ENOMEM)); |
| 401 | } |
| 402 | |
| 403 | /* Dump a single type into the cds_items. */ |
| 404 | |
| 405 | static int |
| 406 | ctf_dump_type (ctf_id_t id, void *arg) |
| 407 | { |
| 408 | char *str; |
| 409 | ctf_dump_state_t *state = arg; |
| 410 | ctf_dump_membstate_t membstate = { &str, state->cds_fp }; |
| 411 | size_t len; |
| 412 | |
| 413 | if ((str = ctf_dump_format_type (state->cds_fp, id)) == NULL) |
| 414 | goto err; |
| 415 | |
| 416 | str = ctf_str_append (str, "\n"); |
| 417 | if ((ctf_type_visit (state->cds_fp, id, ctf_dump_member, &membstate)) < 0) |
| 418 | goto err; |
| 419 | |
| 420 | /* Trim off the last linefeed added by ctf_dump_member(). */ |
| 421 | len = strlen (str); |
| 422 | if (str[len-1] == '\n') |
| 423 | str[len-1] = '\0'; |
| 424 | |
| 425 | ctf_dump_append (state, str); |
| 426 | return 0; |
| 427 | |
| 428 | err: |
| 429 | free (str); |
| 430 | return -1; /* errno is set for us. */ |
| 431 | } |
| 432 | |
| 433 | /* Dump the string table into the cds_items. */ |
| 434 | |
| 435 | static int |
| 436 | ctf_dump_str (ctf_file_t *fp, ctf_dump_state_t *state) |
| 437 | { |
| 438 | const char *s = fp->ctf_str[CTF_STRTAB_0].cts_strs; |
| 439 | |
| 440 | for (; s < fp->ctf_str[CTF_STRTAB_0].cts_strs + |
| 441 | fp->ctf_str[CTF_STRTAB_0].cts_len;) |
| 442 | { |
| 443 | char *str; |
| 444 | if (asprintf (&str, "%lx: %s", |
| 445 | (unsigned long) (s - fp->ctf_str[CTF_STRTAB_0].cts_strs), |
| 446 | s) < 0) |
| 447 | return (ctf_set_errno (fp, ENOMEM)); |
| 448 | ctf_dump_append (state, str); |
| 449 | s += strlen (s) + 1; |
| 450 | } |
| 451 | |
| 452 | return 0; |
| 453 | } |
| 454 | |
| 455 | /* Dump a particular section of a CTF file, in textual form. Call with a |
| 456 | pointer to a NULL STATE: each call emits a dynamically allocated string |
| 457 | containing a description of one entity in the specified section, in order. |
| 458 | Only the first call (with a NULL state) may vary SECT. Once the CTF section |
| 459 | has been entirely dumped, the call returns NULL and frees and annuls the |
| 460 | STATE, ready for another section to be dumped. The returned textual content |
| 461 | may span multiple lines: between each call the FUNC is called with one |
| 462 | textual line at a time, and should return a suitably decorated line (it can |
| 463 | allocate a new one and return it if it likes). */ |
| 464 | |
| 465 | char * |
| 466 | ctf_dump (ctf_file_t *fp, ctf_dump_state_t **statep, ctf_sect_names_t sect, |
| 467 | ctf_dump_decorate_f *func, void *arg) |
| 468 | { |
| 469 | char *str; |
| 470 | char *line; |
| 471 | ctf_dump_state_t *state = NULL; |
| 472 | |
| 473 | if (*statep == NULL) |
| 474 | { |
| 475 | /* Data collection. Transforming a call-at-a-time iterator into a |
| 476 | return-at-a-time iterator in a language without call/cc is annoying. It |
| 477 | is easiest to simply collect everything at once and then return it bit |
| 478 | by bit. The first call will take (much) longer than otherwise, but the |
| 479 | amortized time needed is the same. */ |
| 480 | |
| 481 | if ((*statep = ctf_alloc (sizeof (struct ctf_dump_state))) == NULL) |
| 482 | { |
| 483 | ctf_set_errno (fp, ENOMEM); |
| 484 | goto end; |
| 485 | } |
| 486 | state = *statep; |
| 487 | |
| 488 | memset (state, 0, sizeof (struct ctf_dump_state)); |
| 489 | state->cds_fp = fp; |
| 490 | state->cds_sect = sect; |
| 491 | |
| 492 | switch (sect) |
| 493 | { |
| 494 | case CTF_SECT_HEADER: |
| 495 | /* Nothing doable (yet): entire header is discarded after read-phase. */ |
| 496 | str = strdup (""); |
| 497 | break; |
| 498 | case CTF_SECT_LABEL: |
| 499 | if (ctf_label_iter (fp, ctf_dump_label, state) < 0) |
| 500 | { |
| 501 | if (ctf_errno (fp) != ECTF_NOLABELDATA) |
| 502 | goto end; /* errno is set for us. */ |
| 503 | ctf_set_errno (fp, 0); |
| 504 | } |
| 505 | break; |
| 506 | case CTF_SECT_OBJT: |
| 507 | if (ctf_dump_objts (fp, state) < 0) |
| 508 | goto end; /* errno is set for us. */ |
| 509 | break; |
| 510 | case CTF_SECT_FUNC: |
| 511 | if (ctf_dump_funcs (fp, state) < 0) |
| 512 | goto end; /* errno is set for us. */ |
| 513 | break; |
| 514 | case CTF_SECT_VAR: |
| 515 | if (ctf_variable_iter (fp, ctf_dump_var, state) < 0) |
| 516 | goto end; /* errno is set for us. */ |
| 517 | break; |
| 518 | case CTF_SECT_TYPE: |
| 519 | if (ctf_type_iter (fp, ctf_dump_type, state) < 0) |
| 520 | goto end; /* errno is set for us. */ |
| 521 | break; |
| 522 | case CTF_SECT_STR: |
| 523 | ctf_dump_str (fp, state); |
| 524 | break; |
| 525 | default: |
| 526 | ctf_set_errno (fp, ECTF_DUMPSECTUNKNOWN); |
| 527 | goto end; |
| 528 | } |
| 529 | } |
| 530 | else |
| 531 | { |
| 532 | state = *statep; |
| 533 | |
| 534 | if (state->cds_sect != sect) |
| 535 | { |
| 536 | ctf_set_errno (fp, ECTF_DUMPSECTCHANGED); |
| 537 | goto end; |
| 538 | } |
| 539 | } |
| 540 | |
| 541 | if (state->cds_current == NULL) |
| 542 | state->cds_current = ctf_list_next (&state->cds_items); |
| 543 | else |
| 544 | state->cds_current = ctf_list_next (state->cds_current); |
| 545 | |
| 546 | if (state->cds_current == NULL) |
| 547 | goto end; |
| 548 | |
| 549 | /* Hookery. There is some extra complexity to preserve linefeeds within each |
| 550 | item while removing linefeeds at the end. */ |
| 551 | if (func) |
| 552 | { |
| 553 | size_t len; |
| 554 | |
| 555 | str = NULL; |
| 556 | for (line = state->cds_current->cdi_item; line && *line; ) |
| 557 | { |
| 558 | char *nline = line; |
| 559 | char *ret; |
| 560 | |
| 561 | nline = strchr (line, '\n'); |
| 562 | if (nline) |
| 563 | nline[0] = '\0'; |
| 564 | |
| 565 | ret = func (sect, line, arg); |
| 566 | str = ctf_str_append (str, ret); |
| 567 | str = ctf_str_append (str, "\n"); |
| 568 | if (ret != line) |
| 569 | free (ret); |
| 570 | |
| 571 | if (nline) |
| 572 | { |
| 573 | nline[0] = '\n'; |
| 574 | nline++; |
| 575 | } |
| 576 | |
| 577 | line = nline; |
| 578 | } |
| 579 | |
| 580 | len = strlen (str); |
| 581 | |
| 582 | if (str[len-1] == '\n') |
| 583 | str[len-1] = '\0'; |
| 584 | } |
| 585 | else |
| 586 | str = strdup (state->cds_current->cdi_item); |
| 587 | |
| 588 | ctf_set_errno (fp, 0); |
| 589 | return str; |
| 590 | |
| 591 | end: |
| 592 | ctf_dump_free (state); |
| 593 | ctf_free (state); |
| 594 | ctf_set_errno (fp, 0); |
| 595 | *statep = NULL; |
| 596 | return NULL; |
| 597 | } |