1 /* vi:set ts=8 sts=4 sw=4 noet: 2 * 3 * CSCOPE support for Vim added by Andy Kahn <[email protected]> 4 * Ported to Win32 by Sergey Khorev <[email protected]> 5 * 6 * The basic idea/structure of cscope for Vim was borrowed from Nvi. There 7 * might be a few lines of code that look similar to what Nvi has. 8 * 9 * See README.txt for an overview of the Vim source code. 10 */ 11 12 #include "vim.h" 13 14 #if defined(FEAT_CSCOPE) || defined(PROTO) 15 16 #include <sys/types.h> 17 #include <sys/stat.h> 18 #if defined(UNIX) 19 # include <sys/wait.h> 20 #endif 21 #include "if_cscope.h" 22 23 static int cs_add(exarg_T *eap); 24 static int cs_add_common(char *, char *, char *); 25 static int cs_check_for_connections(void); 26 static int cs_check_for_tags(void); 27 static int cs_cnt_connections(void); 28 static int cs_create_connection(int i); 29 #ifdef FEAT_QUICKFIX 30 static void cs_file_results(FILE *, int *); 31 #endif 32 static void cs_fill_results(char *, int , int *, char ***, 33 char ***, int *); 34 static int cs_find(exarg_T *eap); 35 static int cs_find_common(char *opt, char *pat, int, int, int, char_u *cmdline); 36 static int cs_help(exarg_T *eap); 37 static int cs_insert_filelist(char *, char *, char *, 38 stat_T *); 39 static int cs_kill(exarg_T *eap); 40 static void cs_kill_execute(int, char *); 41 static cscmd_T * cs_lookup_cmd(exarg_T *eap); 42 static char * cs_make_vim_style_matches(char *, char *, 43 char *, char *); 44 static char * cs_manage_matches(char **, char **, int, mcmd_e); 45 static void cs_print_tags_priv(char **, char **, int); 46 static int cs_read_prompt(int); 47 static void cs_release_csp(int, int freefnpp); 48 static int cs_reset(exarg_T *eap); 49 static char * cs_resolve_file(int, char *); 50 static int cs_show(exarg_T *eap); 51 52 53 static csinfo_T * csinfo = NULL; 54 static int csinfo_size = 0; /* number of items allocated in 55 csinfo[] */ 56 57 static int eap_arg_len; /* length of eap->arg, set in 58 cs_lookup_cmd() */ 59 static cscmd_T cs_cmds[] = 60 { 61 { "add", cs_add, 62 N_("Add a new database"), "add file|dir [pre-path] [flags]", 0 }, 63 { "find", cs_find, 64 N_("Query for a pattern"), "find a|c|d|e|f|g|i|s|t name", 1 }, 65 { "help", cs_help, 66 N_("Show this message"), "help", 0 }, 67 { "kill", cs_kill, 68 N_("Kill a connection"), "kill #", 0 }, 69 { "reset", cs_reset, 70 N_("Reinit all connections"), "reset", 0 }, 71 { "show", cs_show, 72 N_("Show connections"), "show", 0 }, 73 { NULL, NULL, NULL, NULL, 0 } 74 }; 75 76 static void 77 cs_usage_msg(csid_e x) 78 { 79 (void)semsg(_("E560: Usage: cs[cope] %s"), cs_cmds[(int)x].usage); 80 } 81 82 static enum 83 { 84 EXP_CSCOPE_SUBCMD, /* expand ":cscope" sub-commands */ 85 EXP_SCSCOPE_SUBCMD, /* expand ":scscope" sub-commands */ 86 EXP_CSCOPE_FIND, /* expand ":cscope find" arguments */ 87 EXP_CSCOPE_KILL /* expand ":cscope kill" arguments */ 88 } expand_what; 89 90 /* 91 * Function given to ExpandGeneric() to obtain the cscope command 92 * expansion. 93 */ 94 char_u * 95 get_cscope_name(expand_T *xp UNUSED, int idx) 96 { 97 int current_idx; 98 int i; 99 100 switch (expand_what) 101 { 102 case EXP_CSCOPE_SUBCMD: 103 /* Complete with sub-commands of ":cscope": 104 * add, find, help, kill, reset, show */ 105 return (char_u *)cs_cmds[idx].name; 106 case EXP_SCSCOPE_SUBCMD: 107 /* Complete with sub-commands of ":scscope": same sub-commands as 108 * ":cscope" but skip commands which don't support split windows */ 109 for (i = 0, current_idx = 0; cs_cmds[i].name != NULL; i++) 110 if (cs_cmds[i].cansplit) 111 if (current_idx++ == idx) 112 break; 113 return (char_u *)cs_cmds[i].name; 114 case EXP_CSCOPE_FIND: 115 { 116 const char *query_type[] = 117 { 118 "a", "c", "d", "e", "f", "g", "i", "s", "t", NULL 119 }; 120 121 /* Complete with query type of ":cscope find {query_type}". 122 * {query_type} can be letters (c, d, ... a) or numbers (0, 1, 123 * ..., 9) but only complete with letters, since numbers are 124 * redundant. */ 125 return (char_u *)query_type[idx]; 126 } 127 case EXP_CSCOPE_KILL: 128 { 129 static char connection[5]; 130 131 /* ":cscope kill" accepts connection numbers or partial names of 132 * the pathname of the cscope database as argument. Only complete 133 * with connection numbers. -1 can also be used to kill all 134 * connections. */ 135 for (i = 0, current_idx = 0; i < csinfo_size; i++) 136 { 137 if (csinfo[i].fname == NULL) 138 continue; 139 if (current_idx++ == idx) 140 { 141 vim_snprintf(connection, sizeof(connection), "%d", i); 142 return (char_u *)connection; 143 } 144 } 145 return (current_idx == idx && idx > 0) ? (char_u *)"-1" : NULL; 146 } 147 default: 148 return NULL; 149 } 150 } 151 152 /* 153 * Handle command line completion for :cscope command. 154 */ 155 void 156 set_context_in_cscope_cmd( 157 expand_T *xp, 158 char_u *arg, 159 cmdidx_T cmdidx) 160 { 161 char_u *p; 162 163 /* Default: expand subcommands */ 164 xp->xp_context = EXPAND_CSCOPE; 165 xp->xp_pattern = arg; 166 expand_what = (cmdidx == CMD_scscope) 167 ? EXP_SCSCOPE_SUBCMD : EXP_CSCOPE_SUBCMD; 168 169 /* (part of) subcommand already typed */ 170 if (*arg != NUL) 171 { 172 p = skiptowhite(arg); 173 if (*p != NUL) /* past first word */ 174 { 175 xp->xp_pattern = skipwhite(p); 176 if (*skiptowhite(xp->xp_pattern) != NUL) 177 xp->xp_context = EXPAND_NOTHING; 178 else if (STRNICMP(arg, "add", p - arg) == 0) 179 xp->xp_context = EXPAND_FILES; 180 else if (STRNICMP(arg, "kill", p - arg) == 0) 181 expand_what = EXP_CSCOPE_KILL; 182 else if (STRNICMP(arg, "find", p - arg) == 0) 183 expand_what = EXP_CSCOPE_FIND; 184 else 185 xp->xp_context = EXPAND_NOTHING; 186 } 187 } 188 } 189 190 /* 191 * Find the command, print help if invalid, and then call the corresponding 192 * command function. 193 */ 194 static void 195 do_cscope_general( 196 exarg_T *eap, 197 int make_split UNUSED) /* whether to split window */ 198 { 199 cscmd_T *cmdp; 200 201 if ((cmdp = cs_lookup_cmd(eap)) == NULL) 202 { 203 cs_help(eap); 204 return; 205 } 206 207 if (make_split) 208 { 209 if (!cmdp->cansplit) 210 { 211 (void)msg_puts(_("This cscope command does not support splitting the window.\n")); 212 return; 213 } 214 postponed_split = -1; 215 postponed_split_flags = cmdmod.split; 216 postponed_split_tab = cmdmod.tab; 217 } 218 219 cmdp->func(eap); 220 221 postponed_split_flags = 0; 222 postponed_split_tab = 0; 223 } 224 225 /* 226 * Implementation of ":cscope" and ":lcscope" 227 */ 228 void 229 ex_cscope(exarg_T *eap) 230 { 231 do_cscope_general(eap, FALSE); 232 } 233 234 /* 235 * Implementation of ":scscope". Same as ex_cscope(), but splits window, too. 236 */ 237 void 238 ex_scscope(exarg_T *eap) 239 { 240 do_cscope_general(eap, TRUE); 241 } 242 243 /* 244 * Implementation of ":cstag" 245 */ 246 void 247 ex_cstag(exarg_T *eap) 248 { 249 int ret = FALSE; 250 251 if (*eap->arg == NUL) 252 { 253 (void)emsg(_("E562: Usage: cstag <ident>")); 254 return; 255 } 256 257 switch (p_csto) 258 { 259 case 0 : 260 if (cs_check_for_connections()) 261 { 262 ret = cs_find_common("g", (char *)(eap->arg), eap->forceit, FALSE, 263 FALSE, *eap->cmdlinep); 264 if (ret == FALSE) 265 { 266 cs_free_tags(); 267 if (msg_col) 268 msg_putchar('\n'); 269 270 if (cs_check_for_tags()) 271 ret = do_tag(eap->arg, DT_JUMP, 0, eap->forceit, FALSE); 272 } 273 } 274 else if (cs_check_for_tags()) 275 { 276 ret = do_tag(eap->arg, DT_JUMP, 0, eap->forceit, FALSE); 277 } 278 break; 279 case 1 : 280 if (cs_check_for_tags()) 281 { 282 ret = do_tag(eap->arg, DT_JUMP, 0, eap->forceit, FALSE); 283 if (ret == FALSE) 284 { 285 if (msg_col) 286 msg_putchar('\n'); 287 288 if (cs_check_for_connections()) 289 { 290 ret = cs_find_common("g", (char *)(eap->arg), eap->forceit, 291 FALSE, FALSE, *eap->cmdlinep); 292 if (ret == FALSE) 293 cs_free_tags(); 294 } 295 } 296 } 297 else if (cs_check_for_connections()) 298 { 299 ret = cs_find_common("g", (char *)(eap->arg), eap->forceit, FALSE, 300 FALSE, *eap->cmdlinep); 301 if (ret == FALSE) 302 cs_free_tags(); 303 } 304 break; 305 default : 306 break; 307 } 308 309 if (!ret) 310 { 311 (void)emsg(_("E257: cstag: tag not found")); 312 #if defined(FEAT_QUICKFIX) 313 g_do_tagpreview = 0; 314 #endif 315 } 316 317 } 318 319 320 /* 321 * This simulates a vim_fgets(), but for cscope, returns the next line 322 * from the cscope output. should only be called from find_tags() 323 * 324 * returns TRUE if eof, FALSE otherwise 325 */ 326 int 327 cs_fgets(char_u *buf, int size) 328 { 329 char *p; 330 331 if ((p = cs_manage_matches(NULL, NULL, -1, Get)) == NULL) 332 return TRUE; 333 vim_strncpy(buf, (char_u *)p, size - 1); 334 335 return FALSE; 336 } /* cs_fgets */ 337 338 339 /* 340 * Called only from do_tag(), when popping the tag stack. 341 */ 342 void 343 cs_free_tags(void) 344 { 345 cs_manage_matches(NULL, NULL, -1, Free); 346 } 347 348 349 /* 350 * Called from do_tag(). 351 */ 352 void 353 cs_print_tags(void) 354 { 355 cs_manage_matches(NULL, NULL, -1, Print); 356 } 357 358 359 /* 360 * "cscope_connection([{num} , {dbpath} [, {prepend}]])" function 361 * 362 * Checks for the existence of a |cscope| connection. If no 363 * parameters are specified, then the function returns: 364 * 365 * 0, if cscope was not available (not compiled in), or if there 366 * are no cscope connections; or 367 * 1, if there is at least one cscope connection. 368 * 369 * If parameters are specified, then the value of {num} 370 * determines how existence of a cscope connection is checked: 371 * 372 * {num} Description of existence check 373 * ----- ------------------------------ 374 * 0 Same as no parameters (e.g., "cscope_connection()"). 375 * 1 Ignore {prepend}, and use partial string matches for 376 * {dbpath}. 377 * 2 Ignore {prepend}, and use exact string matches for 378 * {dbpath}. 379 * 3 Use {prepend}, use partial string matches for both 380 * {dbpath} and {prepend}. 381 * 4 Use {prepend}, use exact string matches for both 382 * {dbpath} and {prepend}. 383 * 384 * Note: All string comparisons are case sensitive! 385 */ 386 #if defined(FEAT_EVAL) || defined(PROTO) 387 int 388 cs_connection(int num, char_u *dbpath, char_u *ppath) 389 { 390 int i; 391 392 if (num < 0 || num > 4 || (num > 0 && !dbpath)) 393 return FALSE; 394 395 for (i = 0; i < csinfo_size; i++) 396 { 397 if (!csinfo[i].fname) 398 continue; 399 400 if (num == 0) 401 return TRUE; 402 403 switch (num) 404 { 405 case 1: 406 if (strstr(csinfo[i].fname, (char *)dbpath)) 407 return TRUE; 408 break; 409 case 2: 410 if (strcmp(csinfo[i].fname, (char *)dbpath) == 0) 411 return TRUE; 412 break; 413 case 3: 414 if (strstr(csinfo[i].fname, (char *)dbpath) 415 && ((!ppath && !csinfo[i].ppath) 416 || (ppath 417 && csinfo[i].ppath 418 && strstr(csinfo[i].ppath, (char *)ppath)))) 419 return TRUE; 420 break; 421 case 4: 422 if ((strcmp(csinfo[i].fname, (char *)dbpath) == 0) 423 && ((!ppath && !csinfo[i].ppath) 424 || (ppath 425 && csinfo[i].ppath 426 && (strcmp(csinfo[i].ppath, (char *)ppath) == 0)))) 427 return TRUE; 428 break; 429 } 430 } 431 432 return FALSE; 433 } /* cs_connection */ 434 #endif 435 436 437 /* 438 * PRIVATE functions 439 ****************************************************************************/ 440 441 /* 442 * Add cscope database or a directory name (to look for cscope.out) 443 * to the cscope connection list. 444 */ 445 static int 446 cs_add(exarg_T *eap UNUSED) 447 { 448 char *fname, *ppath, *flags = NULL; 449 450 if ((fname = strtok((char *)NULL, (const char *)" ")) == NULL) 451 { 452 cs_usage_msg(Add); 453 return CSCOPE_FAILURE; 454 } 455 if ((ppath = strtok((char *)NULL, (const char *)" ")) != NULL) 456 flags = strtok((char *)NULL, (const char *)" "); 457 458 return cs_add_common(fname, ppath, flags); 459 } 460 461 static void 462 cs_stat_emsg(char *fname) 463 { 464 char *stat_emsg = _("E563: stat(%s) error: %d"); 465 char *buf = alloc(strlen(stat_emsg) + MAXPATHL + 10); 466 467 if (buf != NULL) 468 { 469 (void)sprintf(buf, stat_emsg, fname, errno); 470 (void)emsg(buf); 471 vim_free(buf); 472 } 473 else 474 (void)emsg(_("E563: stat error")); 475 } 476 477 478 /* 479 * The common routine to add a new cscope connection. Called by 480 * cs_add() and cs_reset(). I really don't like to do this, but this 481 * routine uses a number of goto statements. 482 */ 483 static int 484 cs_add_common( 485 char *arg1, /* filename - may contain environment variables */ 486 char *arg2, /* prepend path - may contain environment variables */ 487 char *flags) 488 { 489 stat_T statbuf; 490 int ret; 491 char *fname = NULL; 492 char *fname2 = NULL; 493 char *ppath = NULL; 494 int i; 495 int len; 496 int usedlen = 0; 497 char_u *fbuf = NULL; 498 499 /* get the filename (arg1), expand it, and try to stat it */ 500 if ((fname = alloc(MAXPATHL + 1)) == NULL) 501 goto add_err; 502 503 expand_env((char_u *)arg1, (char_u *)fname, MAXPATHL); 504 len = (int)STRLEN(fname); 505 fbuf = (char_u *)fname; 506 (void)modify_fname((char_u *)":p", FALSE, &usedlen, 507 (char_u **)&fname, &fbuf, &len); 508 if (fname == NULL) 509 goto add_err; 510 fname = (char *)vim_strnsave((char_u *)fname, len); 511 vim_free(fbuf); 512 513 ret = mch_stat(fname, &statbuf); 514 if (ret < 0) 515 { 516 staterr: 517 if (p_csverbose) 518 cs_stat_emsg(fname); 519 goto add_err; 520 } 521 522 /* get the prepend path (arg2), expand it, and try to stat it */ 523 if (arg2 != NULL) 524 { 525 stat_T statbuf2; 526 527 if ((ppath = alloc(MAXPATHL + 1)) == NULL) 528 goto add_err; 529 530 expand_env((char_u *)arg2, (char_u *)ppath, MAXPATHL); 531 ret = mch_stat(ppath, &statbuf2); 532 if (ret < 0) 533 goto staterr; 534 } 535 536 /* if filename is a directory, append the cscope database name to it */ 537 if (S_ISDIR(statbuf.st_mode)) 538 { 539 fname2 = alloc(strlen(CSCOPE_DBFILE) + strlen(fname) + 2); 540 if (fname2 == NULL) 541 goto add_err; 542 543 while (fname[strlen(fname)-1] == '/' 544 #ifdef MSWIN 545 || fname[strlen(fname)-1] == '\\' 546 #endif 547 ) 548 { 549 fname[strlen(fname)-1] = '\0'; 550 if (fname[0] == '\0') 551 break; 552 } 553 if (fname[0] == '\0') 554 (void)sprintf(fname2, "/%s", CSCOPE_DBFILE); 555 else 556 (void)sprintf(fname2, "%s/%s", fname, CSCOPE_DBFILE); 557 558 ret = mch_stat(fname2, &statbuf); 559 if (ret < 0) 560 { 561 if (p_csverbose) 562 cs_stat_emsg(fname2); 563 goto add_err; 564 } 565 566 i = cs_insert_filelist(fname2, ppath, flags, &statbuf); 567 } 568 else if (S_ISREG(statbuf.st_mode) || S_ISLNK(statbuf.st_mode)) 569 { 570 i = cs_insert_filelist(fname, ppath, flags, &statbuf); 571 } 572 else 573 { 574 if (p_csverbose) 575 (void)semsg( 576 _("E564: %s is not a directory or a valid cscope database"), 577 fname); 578 goto add_err; 579 } 580 581 if (i != -1) 582 { 583 if (cs_create_connection(i) == CSCOPE_FAILURE 584 || cs_read_prompt(i) == CSCOPE_FAILURE) 585 { 586 cs_release_csp(i, TRUE); 587 goto add_err; 588 } 589 590 if (p_csverbose) 591 { 592 msg_clr_eos(); 593 (void)smsg_attr(HL_ATTR(HLF_R), 594 _("Added cscope database %s"), 595 csinfo[i].fname); 596 } 597 } 598 599 vim_free(fname); 600 vim_free(fname2); 601 vim_free(ppath); 602 return CSCOPE_SUCCESS; 603 604 add_err: 605 vim_free(fname2); 606 vim_free(fname); 607 vim_free(ppath); 608 return CSCOPE_FAILURE; 609 } /* cs_add_common */ 610 611 612 static int 613 cs_check_for_connections(void) 614 { 615 return (cs_cnt_connections() > 0); 616 } /* cs_check_for_connections */ 617 618 619 static int 620 cs_check_for_tags(void) 621 { 622 return (p_tags[0] != NUL && curbuf->b_p_tags != NULL); 623 } /* cs_check_for_tags */ 624 625 626 /* 627 * Count the number of cscope connections. 628 */ 629 static int 630 cs_cnt_connections(void) 631 { 632 short i; 633 short cnt = 0; 634 635 for (i = 0; i < csinfo_size; i++) 636 { 637 if (csinfo[i].fname != NULL) 638 cnt++; 639 } 640 return cnt; 641 } /* cs_cnt_connections */ 642 643 static void 644 cs_reading_emsg( 645 int idx) /* connection index */ 646 { 647 semsg(_("E262: error reading cscope connection %d"), idx); 648 } 649 650 #define CSREAD_BUFSIZE 2048 651 /* 652 * Count the number of matches for a given cscope connection. 653 */ 654 static int 655 cs_cnt_matches(int idx) 656 { 657 char *stok; 658 char *buf; 659 int nlines = 0; 660 661 buf = alloc(CSREAD_BUFSIZE); 662 if (buf == NULL) 663 return 0; 664 for (;;) 665 { 666 if (!fgets(buf, CSREAD_BUFSIZE, csinfo[idx].fr_fp)) 667 { 668 if (feof(csinfo[idx].fr_fp)) 669 errno = EIO; 670 671 cs_reading_emsg(idx); 672 673 vim_free(buf); 674 return -1; 675 } 676 677 /* 678 * If the database is out of date, or there's some other problem, 679 * cscope will output error messages before the number-of-lines output. 680 * Display/discard any output that doesn't match what we want. 681 * Accept "\S*cscope: X lines", also matches "mlcscope". 682 * Bail out for the "Unable to search" error. 683 */ 684 if (strstr((const char *)buf, "Unable to search database") != NULL) 685 break; 686 if ((stok = strtok(buf, (const char *)" ")) == NULL) 687 continue; 688 if (strstr((const char *)stok, "cscope:") == NULL) 689 continue; 690 691 if ((stok = strtok(NULL, (const char *)" ")) == NULL) 692 continue; 693 nlines = atoi(stok); 694 if (nlines < 0) 695 { 696 nlines = 0; 697 break; 698 } 699 700 if ((stok = strtok(NULL, (const char *)" ")) == NULL) 701 continue; 702 if (strncmp((const char *)stok, "lines", 5)) 703 continue; 704 705 break; 706 } 707 708 vim_free(buf); 709 return nlines; 710 } /* cs_cnt_matches */ 711 712 713 /* 714 * Creates the actual cscope command query from what the user entered. 715 */ 716 static char * 717 cs_create_cmd(char *csoption, char *pattern) 718 { 719 char *cmd; 720 short search; 721 char *pat; 722 723 switch (csoption[0]) 724 { 725 case '0' : case 's' : 726 search = 0; 727 break; 728 case '1' : case 'g' : 729 search = 1; 730 break; 731 case '2' : case 'd' : 732 search = 2; 733 break; 734 case '3' : case 'c' : 735 search = 3; 736 break; 737 case '4' : case 't' : 738 search = 4; 739 break; 740 case '6' : case 'e' : 741 search = 6; 742 break; 743 case '7' : case 'f' : 744 search = 7; 745 break; 746 case '8' : case 'i' : 747 search = 8; 748 break; 749 case '9' : case 'a' : 750 search = 9; 751 break; 752 default : 753 (void)emsg(_("E561: unknown cscope search type")); 754 cs_usage_msg(Find); 755 return NULL; 756 } 757 758 /* Skip white space before the patter, except for text and pattern search, 759 * they may want to use the leading white space. */ 760 pat = pattern; 761 if (search != 4 && search != 6) 762 while VIM_ISWHITE(*pat) 763 ++pat; 764 765 if ((cmd = alloc(strlen(pat) + 2)) == NULL) 766 return NULL; 767 768 (void)sprintf(cmd, "%d%s", search, pat); 769 770 return cmd; 771 } /* cs_create_cmd */ 772 773 774 /* 775 * This piece of code was taken/adapted from nvi. do we need to add 776 * the BSD license notice? 777 */ 778 static int 779 cs_create_connection(int i) 780 { 781 #ifdef UNIX 782 int to_cs[2], from_cs[2]; 783 #endif 784 int len; 785 char *prog, *cmd, *ppath = NULL; 786 #ifdef MSWIN 787 int fd; 788 SECURITY_ATTRIBUTES sa; 789 PROCESS_INFORMATION pi; 790 STARTUPINFO si; 791 BOOL pipe_stdin = FALSE, pipe_stdout = FALSE; 792 HANDLE stdin_rd, stdout_rd; 793 HANDLE stdout_wr, stdin_wr; 794 BOOL created; 795 # if (defined(_MSC_VER) && (_MSC_VER >= 1300)) || defined(__MINGW32__) 796 # define OPEN_OH_ARGTYPE intptr_t 797 # else 798 # define OPEN_OH_ARGTYPE long 799 # endif 800 #endif 801 802 #if defined(UNIX) 803 /* 804 * Cscope reads from to_cs[0] and writes to from_cs[1]; vi reads from 805 * from_cs[0] and writes to to_cs[1]. 806 */ 807 to_cs[0] = to_cs[1] = from_cs[0] = from_cs[1] = -1; 808 if (pipe(to_cs) < 0 || pipe(from_cs) < 0) 809 { 810 (void)emsg(_("E566: Could not create cscope pipes")); 811 err_closing: 812 if (to_cs[0] != -1) 813 (void)close(to_cs[0]); 814 if (to_cs[1] != -1) 815 (void)close(to_cs[1]); 816 if (from_cs[0] != -1) 817 (void)close(from_cs[0]); 818 if (from_cs[1] != -1) 819 (void)close(from_cs[1]); 820 return CSCOPE_FAILURE; 821 } 822 823 switch (csinfo[i].pid = fork()) 824 { 825 case -1: 826 (void)emsg(_("E622: Could not fork for cscope")); 827 goto err_closing; 828 case 0: /* child: run cscope. */ 829 if (dup2(to_cs[0], STDIN_FILENO) == -1) 830 PERROR("cs_create_connection 1"); 831 if (dup2(from_cs[1], STDOUT_FILENO) == -1) 832 PERROR("cs_create_connection 2"); 833 if (dup2(from_cs[1], STDERR_FILENO) == -1) 834 PERROR("cs_create_connection 3"); 835 836 /* close unused */ 837 (void)close(to_cs[1]); 838 (void)close(from_cs[0]); 839 #else 840 /* MSWIN */ 841 /* Create pipes to communicate with cscope */ 842 sa.nLength = sizeof(SECURITY_ATTRIBUTES); 843 sa.bInheritHandle = TRUE; 844 sa.lpSecurityDescriptor = NULL; 845 846 if (!(pipe_stdin = CreatePipe(&stdin_rd, &stdin_wr, &sa, 0)) 847 || !(pipe_stdout = CreatePipe(&stdout_rd, &stdout_wr, &sa, 0))) 848 { 849 (void)emsg(_("E566: Could not create cscope pipes")); 850 err_closing: 851 if (pipe_stdin) 852 { 853 CloseHandle(stdin_rd); 854 CloseHandle(stdin_wr); 855 } 856 if (pipe_stdout) 857 { 858 CloseHandle(stdout_rd); 859 CloseHandle(stdout_wr); 860 } 861 return CSCOPE_FAILURE; 862 } 863 #endif 864 /* expand the cscope exec for env var's */ 865 if ((prog = alloc(MAXPATHL + 1)) == NULL) 866 { 867 #ifdef UNIX 868 return CSCOPE_FAILURE; 869 #else 870 /* MSWIN */ 871 goto err_closing; 872 #endif 873 } 874 expand_env((char_u *)p_csprg, (char_u *)prog, MAXPATHL); 875 876 /* alloc space to hold the cscope command */ 877 len = (int)(strlen(prog) + strlen(csinfo[i].fname) + 32); 878 if (csinfo[i].ppath) 879 { 880 /* expand the prepend path for env var's */ 881 if ((ppath = alloc(MAXPATHL + 1)) == NULL) 882 { 883 vim_free(prog); 884 #ifdef UNIX 885 return CSCOPE_FAILURE; 886 #else 887 /* MSWIN */ 888 goto err_closing; 889 #endif 890 } 891 expand_env((char_u *)csinfo[i].ppath, (char_u *)ppath, MAXPATHL); 892 893 len += (int)strlen(ppath); 894 } 895 896 if (csinfo[i].flags) 897 len += (int)strlen(csinfo[i].flags); 898 899 if ((cmd = alloc(len)) == NULL) 900 { 901 vim_free(prog); 902 vim_free(ppath); 903 #ifdef UNIX 904 return CSCOPE_FAILURE; 905 #else 906 /* MSWIN */ 907 goto err_closing; 908 #endif 909 } 910 911 /* run the cscope command; is there execl for non-unix systems? */ 912 #if defined(UNIX) 913 (void)sprintf(cmd, "exec %s -dl -f %s", prog, csinfo[i].fname); 914 #else 915 /* MSWIN */ 916 (void)sprintf(cmd, "%s -dl -f %s", prog, csinfo[i].fname); 917 #endif 918 if (csinfo[i].ppath != NULL) 919 { 920 (void)strcat(cmd, " -P"); 921 (void)strcat(cmd, csinfo[i].ppath); 922 } 923 if (csinfo[i].flags != NULL) 924 { 925 (void)strcat(cmd, " "); 926 (void)strcat(cmd, csinfo[i].flags); 927 } 928 # ifdef UNIX 929 /* on Win32 we still need prog */ 930 vim_free(prog); 931 # endif 932 vim_free(ppath); 933 934 #if defined(UNIX) 935 # if defined(HAVE_SETSID) || defined(HAVE_SETPGID) 936 /* Change our process group to avoid cscope receiving SIGWINCH. */ 937 # if defined(HAVE_SETSID) 938 (void)setsid(); 939 # else 940 if (setpgid(0, 0) == -1) 941 PERROR(_("cs_create_connection setpgid failed")); 942 # endif 943 # endif 944 if (execl("/bin/sh", "sh", "-c", cmd, (char *)NULL) == -1) 945 PERROR(_("cs_create_connection exec failed")); 946 947 exit(127); 948 /* NOTREACHED */ 949 default: /* parent. */ 950 /* 951 * Save the file descriptors for later duplication, and 952 * reopen as streams. 953 */ 954 if ((csinfo[i].to_fp = fdopen(to_cs[1], "w")) == NULL) 955 PERROR(_("cs_create_connection: fdopen for to_fp failed")); 956 if ((csinfo[i].fr_fp = fdopen(from_cs[0], "r")) == NULL) 957 PERROR(_("cs_create_connection: fdopen for fr_fp failed")); 958 959 /* close unused */ 960 (void)close(to_cs[0]); 961 (void)close(from_cs[1]); 962 963 break; 964 } 965 966 #else 967 /* MSWIN */ 968 /* Create a new process to run cscope and use pipes to talk with it */ 969 GetStartupInfo(&si); 970 si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW; 971 si.wShowWindow = SW_HIDE; /* Hide child application window */ 972 si.hStdOutput = stdout_wr; 973 si.hStdError = stdout_wr; 974 si.hStdInput = stdin_rd; 975 created = CreateProcess(NULL, cmd, NULL, NULL, TRUE, CREATE_NEW_CONSOLE, 976 NULL, NULL, &si, &pi); 977 vim_free(prog); 978 vim_free(cmd); 979 980 if (!created) 981 { 982 PERROR(_("cs_create_connection exec failed")); 983 (void)emsg(_("E623: Could not spawn cscope process")); 984 goto err_closing; 985 } 986 /* else */ 987 csinfo[i].pid = pi.dwProcessId; 988 csinfo[i].hProc = pi.hProcess; 989 CloseHandle(pi.hThread); 990 991 /* TODO - tidy up after failure to create files on pipe handles. */ 992 if (((fd = _open_osfhandle((OPEN_OH_ARGTYPE)stdin_wr, 993 _O_TEXT|_O_APPEND)) < 0) 994 || ((csinfo[i].to_fp = _fdopen(fd, "w")) == NULL)) 995 PERROR(_("cs_create_connection: fdopen for to_fp failed")); 996 if (((fd = _open_osfhandle((OPEN_OH_ARGTYPE)stdout_rd, 997 _O_TEXT|_O_RDONLY)) < 0) 998 || ((csinfo[i].fr_fp = _fdopen(fd, "r")) == NULL)) 999 PERROR(_("cs_create_connection: fdopen for fr_fp failed")); 1000 1001 /* Close handles for file descriptors inherited by the cscope process */ 1002 CloseHandle(stdin_rd); 1003 CloseHandle(stdout_wr); 1004 1005 #endif /* !UNIX */ 1006 1007 return CSCOPE_SUCCESS; 1008 } /* cs_create_connection */ 1009 1010 1011 /* 1012 * Query cscope using command line interface. Parse the output and use tselect 1013 * to allow choices. Like Nvi, creates a pipe to send to/from query/cscope. 1014 * 1015 * returns TRUE if we jump to a tag or abort, FALSE if not. 1016 */ 1017 static int 1018 cs_find(exarg_T *eap) 1019 { 1020 char *opt, *pat; 1021 int i; 1022 1023 if (cs_check_for_connections() == FALSE) 1024 { 1025 (void)emsg(_("E567: no cscope connections")); 1026 return FALSE; 1027 } 1028 1029 if ((opt = strtok((char *)NULL, (const char *)" ")) == NULL) 1030 { 1031 cs_usage_msg(Find); 1032 return FALSE; 1033 } 1034 1035 pat = opt + strlen(opt) + 1; 1036 if (pat >= (char *)eap->arg + eap_arg_len) 1037 { 1038 cs_usage_msg(Find); 1039 return FALSE; 1040 } 1041 1042 /* 1043 * Let's replace the NULs written by strtok() with spaces - we need the 1044 * spaces to correctly display the quickfix/location list window's title. 1045 */ 1046 for (i = 0; i < eap_arg_len; ++i) 1047 if (NUL == eap->arg[i]) 1048 eap->arg[i] = ' '; 1049 1050 return cs_find_common(opt, pat, eap->forceit, TRUE, 1051 eap->cmdidx == CMD_lcscope, *eap->cmdlinep); 1052 } /* cs_find */ 1053 1054 1055 /* 1056 * Common code for cscope find, shared by cs_find() and ex_cstag(). 1057 */ 1058 static int 1059 cs_find_common( 1060 char *opt, 1061 char *pat, 1062 int forceit, 1063 int verbose, 1064 int use_ll UNUSED, 1065 char_u *cmdline UNUSED) 1066 { 1067 int i; 1068 char *cmd; 1069 int *nummatches; 1070 int totmatches; 1071 #ifdef FEAT_QUICKFIX 1072 char cmdletter; 1073 char *qfpos; 1074 1075 /* get cmd letter */ 1076 switch (opt[0]) 1077 { 1078 case '0' : 1079 cmdletter = 's'; 1080 break; 1081 case '1' : 1082 cmdletter = 'g'; 1083 break; 1084 case '2' : 1085 cmdletter = 'd'; 1086 break; 1087 case '3' : 1088 cmdletter = 'c'; 1089 break; 1090 case '4' : 1091 cmdletter = 't'; 1092 break; 1093 case '6' : 1094 cmdletter = 'e'; 1095 break; 1096 case '7' : 1097 cmdletter = 'f'; 1098 break; 1099 case '8' : 1100 cmdletter = 'i'; 1101 break; 1102 case '9' : 1103 cmdletter = 'a'; 1104 break; 1105 default : 1106 cmdletter = opt[0]; 1107 } 1108 1109 qfpos = (char *)vim_strchr(p_csqf, cmdletter); 1110 if (qfpos != NULL) 1111 { 1112 qfpos++; 1113 /* next symbol must be + or - */ 1114 if (strchr(CSQF_FLAGS, *qfpos) == NULL) 1115 { 1116 char *nf = _("E469: invalid cscopequickfix flag %c for %c"); 1117 char *buf = alloc(strlen(nf)); 1118 1119 /* strlen will be enough because we use chars */ 1120 if (buf != NULL) 1121 { 1122 sprintf(buf, nf, *qfpos, *(qfpos-1)); 1123 (void)emsg(buf); 1124 vim_free(buf); 1125 } 1126 return FALSE; 1127 } 1128 1129 if (*qfpos != '0' 1130 && apply_autocmds(EVENT_QUICKFIXCMDPRE, (char_u *)"cscope", 1131 curbuf->b_fname, TRUE, curbuf)) 1132 { 1133 # ifdef FEAT_EVAL 1134 if (aborting()) 1135 return FALSE; 1136 # endif 1137 } 1138 } 1139 #endif 1140 1141 /* create the actual command to send to cscope */ 1142 cmd = cs_create_cmd(opt, pat); 1143 if (cmd == NULL) 1144 return FALSE; 1145 1146 nummatches = ALLOC_MULT(int, csinfo_size); 1147 if (nummatches == NULL) 1148 { 1149 vim_free(cmd); 1150 return FALSE; 1151 } 1152 1153 /* Send query to all open connections, then count the total number 1154 * of matches so we can alloc all in one swell foop. */ 1155 for (i = 0; i < csinfo_size; i++) 1156 nummatches[i] = 0; 1157 totmatches = 0; 1158 for (i = 0; i < csinfo_size; i++) 1159 { 1160 if (csinfo[i].fname == NULL || csinfo[i].to_fp == NULL) 1161 continue; 1162 1163 /* send cmd to cscope */ 1164 (void)fprintf(csinfo[i].to_fp, "%s\n", cmd); 1165 (void)fflush(csinfo[i].to_fp); 1166 1167 nummatches[i] = cs_cnt_matches(i); 1168 1169 if (nummatches[i] > -1) 1170 totmatches += nummatches[i]; 1171 1172 if (nummatches[i] == 0) 1173 (void)cs_read_prompt(i); 1174 } 1175 vim_free(cmd); 1176 1177 if (totmatches == 0) 1178 { 1179 char *nf = _("E259: no matches found for cscope query %s of %s"); 1180 char *buf; 1181 1182 if (!verbose) 1183 { 1184 vim_free(nummatches); 1185 return FALSE; 1186 } 1187 1188 buf = alloc(strlen(opt) + strlen(pat) + strlen(nf)); 1189 if (buf == NULL) 1190 (void)emsg(nf); 1191 else 1192 { 1193 sprintf(buf, nf, opt, pat); 1194 (void)emsg(buf); 1195 vim_free(buf); 1196 } 1197 vim_free(nummatches); 1198 return FALSE; 1199 } 1200 1201 #ifdef FEAT_QUICKFIX 1202 if (qfpos != NULL && *qfpos != '0' && totmatches > 0) 1203 { 1204 /* fill error list */ 1205 FILE *f; 1206 char_u *tmp = vim_tempname('c', TRUE); 1207 qf_info_T *qi = NULL; 1208 win_T *wp = NULL; 1209 1210 f = mch_fopen((char *)tmp, "w"); 1211 if (f == NULL) 1212 semsg(_(e_notopen), tmp); 1213 else 1214 { 1215 cs_file_results(f, nummatches); 1216 fclose(f); 1217 if (use_ll) /* Use location list */ 1218 wp = curwin; 1219 /* '-' starts a new error list */ 1220 if (qf_init(wp, tmp, (char_u *)"%f%*\\t%l%*\\t%m", 1221 *qfpos == '-', cmdline, NULL) > 0) 1222 { 1223 if (postponed_split != 0) 1224 { 1225 (void)win_split(postponed_split > 0 ? postponed_split : 0, 1226 postponed_split_flags); 1227 RESET_BINDING(curwin); 1228 postponed_split = 0; 1229 } 1230 1231 apply_autocmds(EVENT_QUICKFIXCMDPOST, (char_u *)"cscope", 1232 curbuf->b_fname, TRUE, curbuf); 1233 if (use_ll) 1234 /* 1235 * In the location list window, use the displayed location 1236 * list. Otherwise, use the location list for the window. 1237 */ 1238 qi = (bt_quickfix(wp->w_buffer) && wp->w_llist_ref != NULL) 1239 ? wp->w_llist_ref : wp->w_llist; 1240 qf_jump(qi, 0, 0, forceit); 1241 } 1242 } 1243 mch_remove(tmp); 1244 vim_free(tmp); 1245 vim_free(nummatches); 1246 return TRUE; 1247 } 1248 else 1249 #endif /* FEAT_QUICKFIX */ 1250 { 1251 char **matches = NULL, **contexts = NULL; 1252 int matched = 0; 1253 1254 /* read output */ 1255 cs_fill_results((char *)pat, totmatches, nummatches, &matches, 1256 &contexts, &matched); 1257 vim_free(nummatches); 1258 if (matches == NULL) 1259 return FALSE; 1260 1261 (void)cs_manage_matches(matches, contexts, matched, Store); 1262 1263 return do_tag((char_u *)pat, DT_CSCOPE, 0, forceit, verbose); 1264 } 1265 1266 } /* cs_find_common */ 1267 1268 /* 1269 * Print help. 1270 */ 1271 static int 1272 cs_help(exarg_T *eap UNUSED) 1273 { 1274 cscmd_T *cmdp = cs_cmds; 1275 1276 (void)msg_puts(_("cscope commands:\n")); 1277 while (cmdp->name != NULL) 1278 { 1279 char *help = _(cmdp->help); 1280 int space_cnt = 30 - vim_strsize((char_u *)help); 1281 1282 /* Use %*s rather than %30s to ensure proper alignment in utf-8 */ 1283 if (space_cnt < 0) 1284 space_cnt = 0; 1285 (void)smsg(_("%-5s: %s%*s (Usage: %s)"), 1286 cmdp->name, 1287 help, space_cnt, " ", 1288 cmdp->usage); 1289 if (strcmp(cmdp->name, "find") == 0) 1290 msg_puts(_("\n" 1291 " a: Find assignments to this symbol\n" 1292 " c: Find functions calling this function\n" 1293 " d: Find functions called by this function\n" 1294 " e: Find this egrep pattern\n" 1295 " f: Find this file\n" 1296 " g: Find this definition\n" 1297 " i: Find files #including this file\n" 1298 " s: Find this C symbol\n" 1299 " t: Find this text string\n")); 1300 1301 cmdp++; 1302 } 1303 1304 wait_return(TRUE); 1305 return 0; 1306 } /* cs_help */ 1307 1308 1309 static void 1310 clear_csinfo(int i) 1311 { 1312 csinfo[i].fname = NULL; 1313 csinfo[i].ppath = NULL; 1314 csinfo[i].flags = NULL; 1315 #if defined(UNIX) 1316 csinfo[i].st_dev = (dev_t)0; 1317 csinfo[i].st_ino = (ino_t)0; 1318 #else 1319 csinfo[i].nVolume = 0; 1320 csinfo[i].nIndexHigh = 0; 1321 csinfo[i].nIndexLow = 0; 1322 #endif 1323 csinfo[i].pid = 0; 1324 csinfo[i].fr_fp = NULL; 1325 csinfo[i].to_fp = NULL; 1326 #if defined(MSWIN) 1327 csinfo[i].hProc = NULL; 1328 #endif 1329 } 1330 1331 #ifndef UNIX 1332 static char * 1333 GetWin32Error(void) 1334 { 1335 char *msg = NULL; 1336 FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM, 1337 NULL, GetLastError(), 0, (LPSTR)&msg, 0, NULL); 1338 if (msg != NULL) 1339 { 1340 /* remove trailing \r\n */ 1341 char *pcrlf = strstr(msg, "\r\n"); 1342 if (pcrlf != NULL) 1343 *pcrlf = '\0'; 1344 } 1345 return msg; 1346 } 1347 #endif 1348 1349 /* 1350 * Insert a new cscope database filename into the filelist. 1351 */ 1352 static int 1353 cs_insert_filelist( 1354 char *fname, 1355 char *ppath, 1356 char *flags, 1357 stat_T *sb UNUSED) 1358 { 1359 short i, j; 1360 #ifndef UNIX 1361 BY_HANDLE_FILE_INFORMATION bhfi; 1362 1363 switch (win32_fileinfo((char_u *)fname, &bhfi)) 1364 { 1365 case FILEINFO_ENC_FAIL: /* enc_to_utf16() failed */ 1366 case FILEINFO_READ_FAIL: /* CreateFile() failed */ 1367 if (p_csverbose) 1368 { 1369 char *cant_msg = _("E625: cannot open cscope database: %s"); 1370 char *winmsg = GetWin32Error(); 1371 1372 if (winmsg != NULL) 1373 { 1374 (void)semsg(cant_msg, winmsg); 1375 LocalFree(winmsg); 1376 } 1377 else 1378 /* subst filename if can't get error text */ 1379 (void)semsg(cant_msg, fname); 1380 } 1381 return -1; 1382 1383 case FILEINFO_INFO_FAIL: /* GetFileInformationByHandle() failed */ 1384 if (p_csverbose) 1385 (void)emsg(_("E626: cannot get cscope database information")); 1386 return -1; 1387 } 1388 #endif 1389 1390 i = -1; /* can be set to the index of an empty item in csinfo */ 1391 for (j = 0; j < csinfo_size; j++) 1392 { 1393 if (csinfo[j].fname != NULL 1394 #if defined(UNIX) 1395 && csinfo[j].st_dev == sb->st_dev && csinfo[j].st_ino == sb->st_ino 1396 #else 1397 // compare pathnames first 1398 && ((fullpathcmp((char_u *)csinfo[j].fname, 1399 (char_u *)fname, FALSE, TRUE) & FPC_SAME) 1400 // test index file attributes too 1401 || (csinfo[j].nVolume == bhfi.dwVolumeSerialNumber 1402 && csinfo[j].nIndexHigh == bhfi.nFileIndexHigh 1403 && csinfo[j].nIndexLow == bhfi.nFileIndexLow)) 1404 #endif 1405 ) 1406 { 1407 if (p_csverbose) 1408 (void)emsg(_("E568: duplicate cscope database not added")); 1409 return -1; 1410 } 1411 1412 if (csinfo[j].fname == NULL && i == -1) 1413 i = j; /* remember first empty entry */ 1414 } 1415 1416 if (i == -1) 1417 { 1418 i = csinfo_size; 1419 if (csinfo_size == 0) 1420 { 1421 /* First time allocation: allocate only 1 connection. It should 1422 * be enough for most users. If more is needed, csinfo will be 1423 * reallocated. */ 1424 csinfo_size = 1; 1425 csinfo = ALLOC_CLEAR_ONE(csinfo_T); 1426 } 1427 else 1428 { 1429 csinfo_T *t_csinfo = csinfo; 1430 1431 /* Reallocate space for more connections. */ 1432 csinfo_size *= 2; 1433 csinfo = vim_realloc(csinfo, sizeof(csinfo_T)*csinfo_size); 1434 if (csinfo == NULL) 1435 { 1436 vim_free(t_csinfo); 1437 csinfo_size = 0; 1438 } 1439 } 1440 if (csinfo == NULL) 1441 return -1; 1442 for (j = csinfo_size/2; j < csinfo_size; j++) 1443 clear_csinfo(j); 1444 } 1445 1446 if ((csinfo[i].fname = alloc(strlen(fname)+1)) == NULL) 1447 return -1; 1448 1449 (void)strcpy(csinfo[i].fname, (const char *)fname); 1450 1451 if (ppath != NULL) 1452 { 1453 if ((csinfo[i].ppath = alloc(strlen(ppath) + 1)) == NULL) 1454 { 1455 VIM_CLEAR(csinfo[i].fname); 1456 return -1; 1457 } 1458 (void)strcpy(csinfo[i].ppath, (const char *)ppath); 1459 } else 1460 csinfo[i].ppath = NULL; 1461 1462 if (flags != NULL) 1463 { 1464 if ((csinfo[i].flags = alloc(strlen(flags) + 1)) == NULL) 1465 { 1466 VIM_CLEAR(csinfo[i].fname); 1467 VIM_CLEAR(csinfo[i].ppath); 1468 return -1; 1469 } 1470 (void)strcpy(csinfo[i].flags, (const char *)flags); 1471 } else 1472 csinfo[i].flags = NULL; 1473 1474 #if defined(UNIX) 1475 csinfo[i].st_dev = sb->st_dev; 1476 csinfo[i].st_ino = sb->st_ino; 1477 1478 #else 1479 csinfo[i].nVolume = bhfi.dwVolumeSerialNumber; 1480 csinfo[i].nIndexLow = bhfi.nFileIndexLow; 1481 csinfo[i].nIndexHigh = bhfi.nFileIndexHigh; 1482 #endif 1483 return i; 1484 } /* cs_insert_filelist */ 1485 1486 1487 /* 1488 * Find cscope command in command table. 1489 */ 1490 static cscmd_T * 1491 cs_lookup_cmd(exarg_T *eap) 1492 { 1493 cscmd_T *cmdp; 1494 char *stok; 1495 size_t len; 1496 1497 if (eap->arg == NULL) 1498 return NULL; 1499 1500 /* Store length of eap->arg before it gets modified by strtok(). */ 1501 eap_arg_len = (int)STRLEN(eap->arg); 1502 1503 if ((stok = strtok((char *)(eap->arg), (const char *)" ")) == NULL) 1504 return NULL; 1505 1506 len = strlen(stok); 1507 for (cmdp = cs_cmds; cmdp->name != NULL; ++cmdp) 1508 { 1509 if (strncmp((const char *)(stok), cmdp->name, len) == 0) 1510 return (cmdp); 1511 } 1512 return NULL; 1513 } /* cs_lookup_cmd */ 1514 1515 1516 /* 1517 * Nuke em. 1518 */ 1519 static int 1520 cs_kill(exarg_T *eap UNUSED) 1521 { 1522 char *stok; 1523 short i; 1524 1525 if ((stok = strtok((char *)NULL, (const char *)" ")) == NULL) 1526 { 1527 cs_usage_msg(Kill); 1528 return CSCOPE_FAILURE; 1529 } 1530 1531 /* only single digit positive and negative integers are allowed */ 1532 if ((strlen(stok) < 2 && VIM_ISDIGIT((int)(stok[0]))) 1533 || (strlen(stok) < 3 && stok[0] == '-' 1534 && VIM_ISDIGIT((int)(stok[1])))) 1535 i = atoi(stok); 1536 else 1537 { 1538 /* It must be part of a name. We will try to find a match 1539 * within all the names in the csinfo data structure 1540 */ 1541 for (i = 0; i < csinfo_size; i++) 1542 { 1543 if (csinfo[i].fname != NULL && strstr(csinfo[i].fname, stok)) 1544 break; 1545 } 1546 } 1547 1548 if ((i != -1) && (i >= csinfo_size || i < -1 || csinfo[i].fname == NULL)) 1549 { 1550 if (p_csverbose) 1551 (void)semsg(_("E261: cscope connection %s not found"), stok); 1552 } 1553 else 1554 { 1555 if (i == -1) 1556 { 1557 for (i = 0; i < csinfo_size; i++) 1558 { 1559 if (csinfo[i].fname) 1560 cs_kill_execute(i, csinfo[i].fname); 1561 } 1562 } 1563 else 1564 cs_kill_execute(i, stok); 1565 } 1566 1567 return 0; 1568 } /* cs_kill */ 1569 1570 1571 /* 1572 * Actually kills a specific cscope connection. 1573 */ 1574 static void 1575 cs_kill_execute( 1576 int i, /* cscope table index */ 1577 char *cname) /* cscope database name */ 1578 { 1579 if (p_csverbose) 1580 { 1581 msg_clr_eos(); 1582 (void)smsg_attr(HL_ATTR(HLF_R) | MSG_HIST, 1583 _("cscope connection %s closed"), cname); 1584 } 1585 cs_release_csp(i, TRUE); 1586 } 1587 1588 1589 /* 1590 * Convert the cscope output into a ctags style entry (as might be found 1591 * in a ctags tags file). there's one catch though: cscope doesn't tell you 1592 * the type of the tag you are looking for. for example, in Darren Hiebert's 1593 * ctags (the one that comes with vim), #define's use a line number to find the 1594 * tag in a file while function definitions use a regexp search pattern. 1595 * 1596 * I'm going to always use the line number because cscope does something 1597 * quirky (and probably other things i don't know about): 1598 * 1599 * if you have "# define" in your source file, which is 1600 * perfectly legal, cscope thinks you have "#define". this 1601 * will result in a failed regexp search. :( 1602 * 1603 * Besides, even if this particular case didn't happen, the search pattern 1604 * would still have to be modified to escape all the special regular expression 1605 * characters to comply with ctags formatting. 1606 */ 1607 static char * 1608 cs_make_vim_style_matches( 1609 char *fname, 1610 char *slno, 1611 char *search, 1612 char *tagstr) 1613 { 1614 /* vim style is ctags: 1615 * 1616 * <tagstr>\t<filename>\t<linenum_or_search>"\t<extra> 1617 * 1618 * but as mentioned above, we'll always use the line number and 1619 * put the search pattern (if one exists) as "extra" 1620 * 1621 * buf is used as part of vim's method of handling tags, and 1622 * (i think) vim frees it when you pop your tags and get replaced 1623 * by new ones on the tag stack. 1624 */ 1625 char *buf; 1626 int amt; 1627 1628 if (search != NULL) 1629 { 1630 amt = (int)(strlen(fname) + strlen(slno) + strlen(tagstr) + strlen(search)+6); 1631 if ((buf = alloc(amt)) == NULL) 1632 return NULL; 1633 1634 (void)sprintf(buf, "%s\t%s\t%s;\"\t%s", tagstr, fname, slno, search); 1635 } 1636 else 1637 { 1638 amt = (int)(strlen(fname) + strlen(slno) + strlen(tagstr) + 5); 1639 if ((buf = alloc(amt)) == NULL) 1640 return NULL; 1641 1642 (void)sprintf(buf, "%s\t%s\t%s;\"", tagstr, fname, slno); 1643 } 1644 1645 return buf; 1646 } /* cs_make_vim_style_matches */ 1647 1648 1649 /* 1650 * This is kind of hokey, but i don't see an easy way round this. 1651 * 1652 * Store: keep a ptr to the (malloc'd) memory of matches originally 1653 * generated from cs_find(). the matches are originally lines directly 1654 * from cscope output, but transformed to look like something out of a 1655 * ctags. see cs_make_vim_style_matches for more details. 1656 * 1657 * Get: used only from cs_fgets(), this simulates a vim_fgets() to return 1658 * the next line from the cscope output. it basically keeps track of which 1659 * lines have been "used" and returns the next one. 1660 * 1661 * Free: frees up everything and resets 1662 * 1663 * Print: prints the tags 1664 */ 1665 static char * 1666 cs_manage_matches( 1667 char **matches, 1668 char **contexts, 1669 int totmatches, 1670 mcmd_e cmd) 1671 { 1672 static char **mp = NULL; 1673 static char **cp = NULL; 1674 static int cnt = -1; 1675 static int next = -1; 1676 char *p = NULL; 1677 1678 switch (cmd) 1679 { 1680 case Store: 1681 assert(matches != NULL); 1682 assert(totmatches > 0); 1683 if (mp != NULL || cp != NULL) 1684 (void)cs_manage_matches(NULL, NULL, -1, Free); 1685 mp = matches; 1686 cp = contexts; 1687 cnt = totmatches; 1688 next = 0; 1689 break; 1690 case Get: 1691 if (next >= cnt) 1692 return NULL; 1693 1694 p = mp[next]; 1695 next++; 1696 break; 1697 case Free: 1698 if (mp != NULL) 1699 { 1700 if (cnt > 0) 1701 while (cnt--) 1702 { 1703 vim_free(mp[cnt]); 1704 if (cp != NULL) 1705 vim_free(cp[cnt]); 1706 } 1707 vim_free(mp); 1708 vim_free(cp); 1709 } 1710 mp = NULL; 1711 cp = NULL; 1712 cnt = 0; 1713 next = 0; 1714 break; 1715 case Print: 1716 cs_print_tags_priv(mp, cp, cnt); 1717 break; 1718 default: /* should not reach here */ 1719 iemsg(_("E570: fatal error in cs_manage_matches")); 1720 return NULL; 1721 } 1722 1723 return p; 1724 } /* cs_manage_matches */ 1725 1726 1727 /* 1728 * Parse cscope output. 1729 */ 1730 static char * 1731 cs_parse_results( 1732 int cnumber, 1733 char *buf, 1734 int bufsize, 1735 char **context, 1736 char **linenumber, 1737 char **search) 1738 { 1739 int ch; 1740 char *p; 1741 char *name; 1742 1743 if (fgets(buf, bufsize, csinfo[cnumber].fr_fp) == NULL) 1744 { 1745 if (feof(csinfo[cnumber].fr_fp)) 1746 errno = EIO; 1747 1748 cs_reading_emsg(cnumber); 1749 1750 return NULL; 1751 } 1752 1753 /* If the line's too long for the buffer, discard it. */ 1754 if ((p = strchr(buf, '\n')) == NULL) 1755 { 1756 while ((ch = getc(csinfo[cnumber].fr_fp)) != EOF && ch != '\n') 1757 ; 1758 return NULL; 1759 } 1760 *p = '\0'; 1761 1762 /* 1763 * cscope output is in the following format: 1764 * 1765 * <filename> <context> <line number> <pattern> 1766 */ 1767 if ((name = strtok((char *)buf, (const char *)" ")) == NULL) 1768 return NULL; 1769 if ((*context = strtok(NULL, (const char *)" ")) == NULL) 1770 return NULL; 1771 if ((*linenumber = strtok(NULL, (const char *)" ")) == NULL) 1772 return NULL; 1773 *search = *linenumber + strlen(*linenumber) + 1; /* +1 to skip \0 */ 1774 1775 /* --- nvi --- 1776 * If the file is older than the cscope database, that is, 1777 * the database was built since the file was last modified, 1778 * or there wasn't a search string, use the line number. 1779 */ 1780 if (strcmp(*search, "<unknown>") == 0) 1781 *search = NULL; 1782 1783 name = cs_resolve_file(cnumber, name); 1784 return name; 1785 } 1786 1787 #ifdef FEAT_QUICKFIX 1788 /* 1789 * Write cscope find results to file. 1790 */ 1791 static void 1792 cs_file_results(FILE *f, int *nummatches_a) 1793 { 1794 int i, j; 1795 char *buf; 1796 char *search, *slno; 1797 char *fullname; 1798 char *cntx; 1799 char *context; 1800 1801 buf = alloc(CSREAD_BUFSIZE); 1802 if (buf == NULL) 1803 return; 1804 1805 for (i = 0; i < csinfo_size; i++) 1806 { 1807 if (nummatches_a[i] < 1) 1808 continue; 1809 1810 for (j = 0; j < nummatches_a[i]; j++) 1811 { 1812 if ((fullname = cs_parse_results(i, buf, CSREAD_BUFSIZE, &cntx, 1813 &slno, &search)) == NULL) 1814 continue; 1815 1816 context = alloc(strlen(cntx)+5); 1817 if (context == NULL) 1818 continue; 1819 1820 if (strcmp(cntx, "<global>")==0) 1821 strcpy(context, "<<global>>"); 1822 else 1823 sprintf(context, "<<%s>>", cntx); 1824 1825 if (search == NULL) 1826 fprintf(f, "%s\t%s\t%s\n", fullname, slno, context); 1827 else 1828 fprintf(f, "%s\t%s\t%s %s\n", fullname, slno, context, search); 1829 1830 vim_free(context); 1831 vim_free(fullname); 1832 } /* for all matches */ 1833 1834 (void)cs_read_prompt(i); 1835 1836 } /* for all cscope connections */ 1837 vim_free(buf); 1838 } 1839 #endif 1840 1841 /* 1842 * Get parsed cscope output and calls cs_make_vim_style_matches to convert 1843 * into ctags format. 1844 * When there are no matches sets "*matches_p" to NULL. 1845 */ 1846 static void 1847 cs_fill_results( 1848 char *tagstr, 1849 int totmatches, 1850 int *nummatches_a, 1851 char ***matches_p, 1852 char ***cntxts_p, 1853 int *matched) 1854 { 1855 int i, j; 1856 char *buf; 1857 char *search, *slno; 1858 int totsofar = 0; 1859 char **matches = NULL; 1860 char **cntxts = NULL; 1861 char *fullname; 1862 char *cntx; 1863 1864 assert(totmatches > 0); 1865 1866 buf = alloc(CSREAD_BUFSIZE); 1867 if (buf == NULL) 1868 return; 1869 1870 if ((matches = ALLOC_MULT(char *, totmatches)) == NULL) 1871 goto parse_out; 1872 if ((cntxts = ALLOC_MULT(char *, totmatches)) == NULL) 1873 goto parse_out; 1874 1875 for (i = 0; i < csinfo_size; i++) 1876 { 1877 if (nummatches_a[i] < 1) 1878 continue; 1879 1880 for (j = 0; j < nummatches_a[i]; j++) 1881 { 1882 if ((fullname = cs_parse_results(i, buf, CSREAD_BUFSIZE, &cntx, 1883 &slno, &search)) == NULL) 1884 continue; 1885 1886 matches[totsofar] = cs_make_vim_style_matches(fullname, slno, 1887 search, tagstr); 1888 1889 vim_free(fullname); 1890 1891 if (strcmp(cntx, "<global>") == 0) 1892 cntxts[totsofar] = NULL; 1893 else 1894 /* note: if vim_strsave returns NULL, then the context 1895 * will be "<global>", which is misleading. 1896 */ 1897 cntxts[totsofar] = (char *)vim_strsave((char_u *)cntx); 1898 1899 if (matches[totsofar] != NULL) 1900 totsofar++; 1901 1902 } /* for all matches */ 1903 1904 (void)cs_read_prompt(i); 1905 1906 } /* for all cscope connections */ 1907 1908 parse_out: 1909 if (totsofar == 0) 1910 { 1911 /* No matches, free the arrays and return NULL in "*matches_p". */ 1912 VIM_CLEAR(matches); 1913 VIM_CLEAR(cntxts); 1914 } 1915 *matched = totsofar; 1916 *matches_p = matches; 1917 *cntxts_p = cntxts; 1918 1919 vim_free(buf); 1920 } /* cs_fill_results */ 1921 1922 1923 /* get the requested path components */ 1924 static char * 1925 cs_pathcomponents(char *path) 1926 { 1927 int i; 1928 char *s; 1929 1930 if (p_cspc == 0) 1931 return path; 1932 1933 s = path + strlen(path) - 1; 1934 for (i = 0; i < p_cspc; ++i) 1935 while (s > path && *--s != '/' 1936 #ifdef MSWIN 1937 && *--s != '\\' 1938 #endif 1939 ) 1940 ; 1941 if ((s > path && *s == '/') 1942 #ifdef MSWIN 1943 || (s > path && *s == '\\') 1944 #endif 1945 ) 1946 ++s; 1947 return s; 1948 } 1949 1950 /* 1951 * Called from cs_manage_matches(). 1952 */ 1953 static void 1954 cs_print_tags_priv(char **matches, char **cntxts, int num_matches) 1955 { 1956 char *buf = NULL; 1957 char *t_buf; 1958 int bufsize = 0; /* Track available bufsize */ 1959 int newsize = 0; 1960 char *ptag; 1961 char *fname, *lno, *extra, *tbuf; 1962 int i, idx, num; 1963 char *globalcntx = "GLOBAL"; 1964 char *cntxformat = " <<%s>>"; 1965 char *context; 1966 char *cstag_msg = _("Cscope tag: %s"); 1967 char *csfmt_str = "%4d %6s "; 1968 1969 assert(num_matches > 0); 1970 1971 if ((tbuf = alloc(strlen(matches[0]) + 1)) == NULL) 1972 return; 1973 1974 strcpy(tbuf, matches[0]); 1975 ptag = strtok(tbuf, "\t"); 1976 if (ptag == NULL) 1977 { 1978 vim_free(tbuf); 1979 return; 1980 } 1981 1982 newsize = (int)(strlen(cstag_msg) + strlen(ptag)); 1983 buf = alloc(newsize); 1984 if (buf != NULL) 1985 { 1986 bufsize = newsize; 1987 (void)sprintf(buf, cstag_msg, ptag); 1988 msg_puts_attr(buf, HL_ATTR(HLF_T)); 1989 } 1990 1991 vim_free(tbuf); 1992 1993 msg_puts_attr(_("\n # line"), HL_ATTR(HLF_T)); /* strlen is 7 */ 1994 msg_advance(msg_col + 2); 1995 msg_puts_attr(_("filename / context / line\n"), HL_ATTR(HLF_T)); 1996 1997 num = 1; 1998 for (i = 0; i < num_matches; i++) 1999 { 2000 idx = i; 2001 2002 /* if we really wanted to, we could avoid this malloc and strcpy 2003 * by parsing matches[i] on the fly and placing stuff into buf 2004 * directly, but that's too much of a hassle 2005 */ 2006 if ((tbuf = alloc(strlen(matches[idx]) + 1)) == NULL) 2007 continue; 2008 (void)strcpy(tbuf, matches[idx]); 2009 2010 if (strtok(tbuf, (const char *)"\t") == NULL 2011 || (fname = strtok(NULL, (const char *)"\t")) == NULL 2012 || (lno = strtok(NULL, (const char *)"\t")) == NULL) 2013 { 2014 vim_free(tbuf); 2015 continue; 2016 } 2017 extra = strtok(NULL, (const char *)"\t"); 2018 2019 lno[strlen(lno)-2] = '\0'; /* ignore ;" at the end */ 2020 2021 /* hopefully 'num' (num of matches) will be less than 10^16 */ 2022 newsize = (int)(strlen(csfmt_str) + 16 + strlen(lno)); 2023 if (bufsize < newsize) 2024 { 2025 t_buf = buf; 2026 buf = vim_realloc(buf, newsize); 2027 if (buf == NULL) 2028 { 2029 bufsize = 0; 2030 vim_free(t_buf); 2031 } 2032 else 2033 bufsize = newsize; 2034 } 2035 if (buf != NULL) 2036 { 2037 /* csfmt_str = "%4d %6s "; */ 2038 (void)sprintf(buf, csfmt_str, num, lno); 2039 msg_puts_attr(buf, HL_ATTR(HLF_CM)); 2040 } 2041 msg_outtrans_long_attr((char_u *)cs_pathcomponents(fname), 2042 HL_ATTR(HLF_CM)); 2043 2044 /* compute the required space for the context */ 2045 if (cntxts[idx] != NULL) 2046 context = cntxts[idx]; 2047 else 2048 context = globalcntx; 2049 newsize = (int)(strlen(context) + strlen(cntxformat)); 2050 2051 if (bufsize < newsize) 2052 { 2053 t_buf = buf; 2054 buf = vim_realloc(buf, newsize); 2055 if (buf == NULL) 2056 { 2057 bufsize = 0; 2058 vim_free(t_buf); 2059 } 2060 else 2061 bufsize = newsize; 2062 } 2063 if (buf != NULL) 2064 { 2065 (void)sprintf(buf, cntxformat, context); 2066 2067 /* print the context only if it fits on the same line */ 2068 if (msg_col + (int)strlen(buf) >= (int)Columns) 2069 msg_putchar('\n'); 2070 msg_advance(12); 2071 msg_outtrans_long_attr((char_u *)buf, 0); 2072 msg_putchar('\n'); 2073 } 2074 if (extra != NULL) 2075 { 2076 msg_advance(13); 2077 msg_outtrans_long_attr((char_u *)extra, 0); 2078 } 2079 2080 vim_free(tbuf); /* only after printing extra due to strtok use */ 2081 2082 if (msg_col) 2083 msg_putchar('\n'); 2084 2085 ui_breakcheck(); 2086 if (got_int) 2087 { 2088 got_int = FALSE; /* don't print any more matches */ 2089 break; 2090 } 2091 2092 num++; 2093 } /* for all matches */ 2094 2095 vim_free(buf); 2096 } /* cs_print_tags_priv */ 2097 2098 2099 /* 2100 * Read a cscope prompt (basically, skip over the ">> "). 2101 */ 2102 static int 2103 cs_read_prompt(int i) 2104 { 2105 int ch; 2106 char *buf = NULL; /* buffer for possible error message from cscope */ 2107 int bufpos = 0; 2108 char *cs_emsg; 2109 int maxlen; 2110 static char *eprompt = "Press the RETURN key to continue:"; 2111 int epromptlen = (int)strlen(eprompt); 2112 int n; 2113 2114 cs_emsg = _("E609: Cscope error: %s"); 2115 /* compute maximum allowed len for Cscope error message */ 2116 maxlen = (int)(IOSIZE - strlen(cs_emsg)); 2117 2118 for (;;) 2119 { 2120 while ((ch = getc(csinfo[i].fr_fp)) != EOF && ch != CSCOPE_PROMPT[0]) 2121 /* if there is room and char is printable */ 2122 if (bufpos < maxlen - 1 && vim_isprintc(ch)) 2123 { 2124 if (buf == NULL) /* lazy buffer allocation */ 2125 buf = alloc(maxlen); 2126 if (buf != NULL) 2127 { 2128 /* append character to the message */ 2129 buf[bufpos++] = ch; 2130 buf[bufpos] = NUL; 2131 if (bufpos >= epromptlen 2132 && strcmp(&buf[bufpos - epromptlen], eprompt) == 0) 2133 { 2134 /* remove eprompt from buf */ 2135 buf[bufpos - epromptlen] = NUL; 2136 2137 /* print message to user */ 2138 (void)semsg(cs_emsg, buf); 2139 2140 /* send RETURN to cscope */ 2141 (void)putc('\n', csinfo[i].to_fp); 2142 (void)fflush(csinfo[i].to_fp); 2143 2144 /* clear buf */ 2145 bufpos = 0; 2146 buf[bufpos] = NUL; 2147 } 2148 } 2149 } 2150 2151 for (n = 0; n < (int)strlen(CSCOPE_PROMPT); ++n) 2152 { 2153 if (n > 0) 2154 ch = getc(csinfo[i].fr_fp); 2155 if (ch == EOF) 2156 { 2157 PERROR("cs_read_prompt EOF"); 2158 if (buf != NULL && buf[0] != NUL) 2159 (void)semsg(cs_emsg, buf); 2160 else if (p_csverbose) 2161 cs_reading_emsg(i); /* don't have additional information */ 2162 cs_release_csp(i, TRUE); 2163 vim_free(buf); 2164 return CSCOPE_FAILURE; 2165 } 2166 2167 if (ch != CSCOPE_PROMPT[n]) 2168 { 2169 ch = EOF; 2170 break; 2171 } 2172 } 2173 2174 if (ch == EOF) 2175 continue; /* didn't find the prompt */ 2176 break; /* did find the prompt */ 2177 } 2178 2179 vim_free(buf); 2180 return CSCOPE_SUCCESS; 2181 } 2182 2183 #if defined(UNIX) && defined(SIGALRM) 2184 /* 2185 * Used to catch and ignore SIGALRM below. 2186 */ 2187 static RETSIGTYPE 2188 sig_handler SIGDEFARG(sigarg) 2189 { 2190 /* do nothing */ 2191 SIGRETURN; 2192 } 2193 #endif 2194 2195 /* 2196 * Does the actual free'ing for the cs ptr with an optional flag of whether 2197 * or not to free the filename. Called by cs_kill and cs_reset. 2198 */ 2199 static void 2200 cs_release_csp(int i, int freefnpp) 2201 { 2202 /* 2203 * Trying to exit normally (not sure whether it is fit to UNIX cscope 2204 */ 2205 if (csinfo[i].to_fp != NULL) 2206 { 2207 (void)fputs("q\n", csinfo[i].to_fp); 2208 (void)fflush(csinfo[i].to_fp); 2209 } 2210 #if defined(UNIX) 2211 { 2212 int waitpid_errno; 2213 int pstat; 2214 pid_t pid; 2215 2216 # if defined(HAVE_SIGACTION) 2217 struct sigaction sa, old; 2218 2219 /* Use sigaction() to limit the waiting time to two seconds. */ 2220 sigemptyset(&sa.sa_mask); 2221 sa.sa_handler = sig_handler; 2222 # ifdef SA_NODEFER 2223 sa.sa_flags = SA_NODEFER; 2224 # else 2225 sa.sa_flags = 0; 2226 # endif 2227 sigaction(SIGALRM, &sa, &old); 2228 alarm(2); /* 2 sec timeout */ 2229 2230 /* Block until cscope exits or until timer expires */ 2231 pid = waitpid(csinfo[i].pid, &pstat, 0); 2232 waitpid_errno = errno; 2233 2234 /* cancel pending alarm if still there and restore signal */ 2235 alarm(0); 2236 sigaction(SIGALRM, &old, NULL); 2237 # else 2238 int waited; 2239 2240 /* Can't use sigaction(), loop for two seconds. First yield the CPU 2241 * to give cscope a chance to exit quickly. */ 2242 sleep(0); 2243 for (waited = 0; waited < 40; ++waited) 2244 { 2245 pid = waitpid(csinfo[i].pid, &pstat, WNOHANG); 2246 waitpid_errno = errno; 2247 if (pid != 0) 2248 break; /* break unless the process is still running */ 2249 mch_delay(50L, FALSE); /* sleep 50 ms */ 2250 } 2251 # endif 2252 /* 2253 * If the cscope process is still running: kill it. 2254 * Safety check: If the PID would be zero here, the entire X session 2255 * would be killed. -1 and 1 are dangerous as well. 2256 */ 2257 if (pid < 0 && csinfo[i].pid > 1) 2258 { 2259 # ifdef ECHILD 2260 int alive = TRUE; 2261 2262 if (waitpid_errno == ECHILD) 2263 { 2264 /* 2265 * When using 'vim -g', vim is forked and cscope process is 2266 * no longer a child process but a sibling. So waitpid() 2267 * fails with errno being ECHILD (No child processes). 2268 * Don't send SIGKILL to cscope immediately but wait 2269 * (polling) for it to exit normally as result of sending 2270 * the "q" command, hence giving it a chance to clean up 2271 * its temporary files. 2272 */ 2273 int waited; 2274 2275 sleep(0); 2276 for (waited = 0; waited < 40; ++waited) 2277 { 2278 /* Check whether cscope process is still alive */ 2279 if (kill(csinfo[i].pid, 0) != 0) 2280 { 2281 alive = FALSE; /* cscope process no longer exists */ 2282 break; 2283 } 2284 mch_delay(50L, FALSE); /* sleep 50ms */ 2285 } 2286 } 2287 if (alive) 2288 # endif 2289 { 2290 kill(csinfo[i].pid, SIGKILL); 2291 (void)waitpid(csinfo[i].pid, &pstat, 0); 2292 } 2293 } 2294 } 2295 #else /* !UNIX */ 2296 if (csinfo[i].hProc != NULL) 2297 { 2298 /* Give cscope a chance to exit normally */ 2299 if (WaitForSingleObject(csinfo[i].hProc, 1000) == WAIT_TIMEOUT) 2300 TerminateProcess(csinfo[i].hProc, 0); 2301 CloseHandle(csinfo[i].hProc); 2302 } 2303 #endif 2304 2305 if (csinfo[i].fr_fp != NULL) 2306 (void)fclose(csinfo[i].fr_fp); 2307 if (csinfo[i].to_fp != NULL) 2308 (void)fclose(csinfo[i].to_fp); 2309 2310 if (freefnpp) 2311 { 2312 vim_free(csinfo[i].fname); 2313 vim_free(csinfo[i].ppath); 2314 vim_free(csinfo[i].flags); 2315 } 2316 2317 clear_csinfo(i); 2318 } /* cs_release_csp */ 2319 2320 2321 /* 2322 * Calls cs_kill on all cscope connections then reinits. 2323 */ 2324 static int 2325 cs_reset(exarg_T *eap UNUSED) 2326 { 2327 char **dblist = NULL, **pplist = NULL, **fllist = NULL; 2328 int i; 2329 char buf[20]; /* for sprintf " (#%d)" */ 2330 2331 if (csinfo_size == 0) 2332 return CSCOPE_SUCCESS; 2333 2334 /* malloc our db and ppath list */ 2335 dblist = ALLOC_MULT(char *, csinfo_size); 2336 pplist = ALLOC_MULT(char *, csinfo_size); 2337 fllist = ALLOC_MULT(char *, csinfo_size); 2338 if (dblist == NULL || pplist == NULL || fllist == NULL) 2339 { 2340 vim_free(dblist); 2341 vim_free(pplist); 2342 vim_free(fllist); 2343 return CSCOPE_FAILURE; 2344 } 2345 2346 for (i = 0; i < csinfo_size; i++) 2347 { 2348 dblist[i] = csinfo[i].fname; 2349 pplist[i] = csinfo[i].ppath; 2350 fllist[i] = csinfo[i].flags; 2351 if (csinfo[i].fname != NULL) 2352 cs_release_csp(i, FALSE); 2353 } 2354 2355 /* rebuild the cscope connection list */ 2356 for (i = 0; i < csinfo_size; i++) 2357 { 2358 if (dblist[i] != NULL) 2359 { 2360 cs_add_common(dblist[i], pplist[i], fllist[i]); 2361 if (p_csverbose) 2362 { 2363 /* don't use smsg_attr() because we want to display the 2364 * connection number in the same line as 2365 * "Added cscope database..." 2366 */ 2367 sprintf(buf, " (#%d)", i); 2368 msg_puts_attr(buf, HL_ATTR(HLF_R)); 2369 } 2370 } 2371 vim_free(dblist[i]); 2372 vim_free(pplist[i]); 2373 vim_free(fllist[i]); 2374 } 2375 vim_free(dblist); 2376 vim_free(pplist); 2377 vim_free(fllist); 2378 2379 if (p_csverbose) 2380 msg_attr(_("All cscope databases reset"), HL_ATTR(HLF_R) | MSG_HIST); 2381 return CSCOPE_SUCCESS; 2382 } /* cs_reset */ 2383 2384 2385 /* 2386 * Construct the full pathname to a file found in the cscope database. 2387 * (Prepends ppath, if there is one and if it's not already prepended, 2388 * otherwise just uses the name found.) 2389 * 2390 * We need to prepend the prefix because on some cscope's (e.g., the one that 2391 * ships with Solaris 2.6), the output never has the prefix prepended. 2392 * Contrast this with my development system (Digital Unix), which does. 2393 */ 2394 static char * 2395 cs_resolve_file(int i, char *name) 2396 { 2397 char *fullname; 2398 int len; 2399 char_u *csdir = NULL; 2400 2401 /* 2402 * Ppath is freed when we destroy the cscope connection. 2403 * Fullname is freed after cs_make_vim_style_matches, after it's been 2404 * copied into the tag buffer used by Vim. 2405 */ 2406 len = (int)(strlen(name) + 2); 2407 if (csinfo[i].ppath != NULL) 2408 len += (int)strlen(csinfo[i].ppath); 2409 else if (p_csre && csinfo[i].fname != NULL) 2410 { 2411 /* If 'cscoperelative' is set and ppath is not set, use cscope.out 2412 * path in path resolution. */ 2413 csdir = alloc(MAXPATHL); 2414 if (csdir != NULL) 2415 { 2416 vim_strncpy(csdir, (char_u *)csinfo[i].fname, 2417 gettail((char_u *)csinfo[i].fname) 2418 - (char_u *)csinfo[i].fname); 2419 len += (int)STRLEN(csdir); 2420 } 2421 } 2422 2423 /* Note/example: this won't work if the cscope output already starts 2424 * "../.." and the prefix path is also "../..". if something like this 2425 * happens, you are screwed up and need to fix how you're using cscope. */ 2426 if (csinfo[i].ppath != NULL 2427 && (strncmp(name, csinfo[i].ppath, strlen(csinfo[i].ppath)) != 0) 2428 && (name[0] != '/') 2429 #ifdef MSWIN 2430 && name[0] != '\\' && name[1] != ':' 2431 #endif 2432 ) 2433 { 2434 if ((fullname = alloc(len)) != NULL) 2435 (void)sprintf(fullname, "%s/%s", csinfo[i].ppath, name); 2436 } 2437 else if (csdir != NULL && csinfo[i].fname != NULL && *csdir != NUL) 2438 { 2439 /* Check for csdir to be non empty to avoid empty path concatenated to 2440 * cscope output. */ 2441 fullname = (char *)concat_fnames(csdir, (char_u *)name, TRUE); 2442 } 2443 else 2444 { 2445 fullname = (char *)vim_strsave((char_u *)name); 2446 } 2447 2448 vim_free(csdir); 2449 return fullname; 2450 } 2451 2452 2453 /* 2454 * Show all cscope connections. 2455 */ 2456 static int 2457 cs_show(exarg_T *eap UNUSED) 2458 { 2459 short i; 2460 if (cs_cnt_connections() == 0) 2461 msg_puts(_("no cscope connections\n")); 2462 else 2463 { 2464 msg_puts_attr( 2465 _(" # pid database name prepend path\n"), 2466 HL_ATTR(HLF_T)); 2467 for (i = 0; i < csinfo_size; i++) 2468 { 2469 if (csinfo[i].fname == NULL) 2470 continue; 2471 2472 if (csinfo[i].ppath != NULL) 2473 (void)smsg("%2d %-5ld %-34s %-32s", 2474 i, (long)csinfo[i].pid, csinfo[i].fname, csinfo[i].ppath); 2475 else 2476 (void)smsg("%2d %-5ld %-34s <none>", 2477 i, (long)csinfo[i].pid, csinfo[i].fname); 2478 } 2479 } 2480 2481 wait_return(TRUE); 2482 return CSCOPE_SUCCESS; 2483 } /* cs_show */ 2484 2485 2486 /* 2487 * Only called when VIM exits to quit any cscope sessions. 2488 */ 2489 void 2490 cs_end(void) 2491 { 2492 int i; 2493 2494 for (i = 0; i < csinfo_size; i++) 2495 cs_release_csp(i, TRUE); 2496 vim_free(csinfo); 2497 csinfo_size = 0; 2498 } 2499 2500 #endif /* FEAT_CSCOPE */ 2501 2502 /* the end */ 2503