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.cmod_split; 216 postponed_split_tab = cmdmod.cmod_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 } 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 static 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 } 434 435 #endif 436 437 438 /* 439 * PRIVATE functions 440 ****************************************************************************/ 441 442 /* 443 * Add cscope database or a directory name (to look for cscope.out) 444 * to the cscope connection list. 445 */ 446 static int 447 cs_add(exarg_T *eap UNUSED) 448 { 449 char *fname, *ppath, *flags = NULL; 450 451 if ((fname = strtok((char *)NULL, (const char *)" ")) == NULL) 452 { 453 cs_usage_msg(Add); 454 return CSCOPE_FAILURE; 455 } 456 if ((ppath = strtok((char *)NULL, (const char *)" ")) != NULL) 457 flags = strtok((char *)NULL, (const char *)" "); 458 459 return cs_add_common(fname, ppath, flags); 460 } 461 462 static void 463 cs_stat_emsg(char *fname) 464 { 465 char *stat_emsg = _("E563: stat(%s) error: %d"); 466 char *buf = alloc(strlen(stat_emsg) + MAXPATHL + 10); 467 468 if (buf != NULL) 469 { 470 (void)sprintf(buf, stat_emsg, fname, errno); 471 (void)emsg(buf); 472 vim_free(buf); 473 } 474 else 475 (void)emsg(_("E563: stat error")); 476 } 477 478 479 /* 480 * The common routine to add a new cscope connection. Called by 481 * cs_add() and cs_reset(). I really don't like to do this, but this 482 * routine uses a number of goto statements. 483 */ 484 static int 485 cs_add_common( 486 char *arg1, // filename - may contain environment variables 487 char *arg2, // prepend path - may contain environment variables 488 char *flags) 489 { 490 stat_T statbuf; 491 int ret; 492 char *fname = NULL; 493 char *fname2 = NULL; 494 char *ppath = NULL; 495 int i; 496 int len; 497 int usedlen = 0; 498 char_u *fbuf = NULL; 499 500 // get the filename (arg1), expand it, and try to stat it 501 if ((fname = alloc(MAXPATHL + 1)) == NULL) 502 goto add_err; 503 504 expand_env((char_u *)arg1, (char_u *)fname, MAXPATHL); 505 len = (int)STRLEN(fname); 506 fbuf = (char_u *)fname; 507 (void)modify_fname((char_u *)":p", FALSE, &usedlen, 508 (char_u **)&fname, &fbuf, &len); 509 if (fname == NULL) 510 goto add_err; 511 fname = (char *)vim_strnsave((char_u *)fname, len); 512 vim_free(fbuf); 513 514 ret = mch_stat(fname, &statbuf); 515 if (ret < 0) 516 { 517 staterr: 518 if (p_csverbose) 519 cs_stat_emsg(fname); 520 goto add_err; 521 } 522 523 // get the prepend path (arg2), expand it, and try to stat it 524 if (arg2 != NULL) 525 { 526 stat_T statbuf2; 527 528 if ((ppath = alloc(MAXPATHL + 1)) == NULL) 529 goto add_err; 530 531 expand_env((char_u *)arg2, (char_u *)ppath, MAXPATHL); 532 ret = mch_stat(ppath, &statbuf2); 533 if (ret < 0) 534 goto staterr; 535 } 536 537 // if filename is a directory, append the cscope database name to it 538 if (S_ISDIR(statbuf.st_mode)) 539 { 540 fname2 = alloc(strlen(CSCOPE_DBFILE) + strlen(fname) + 2); 541 if (fname2 == NULL) 542 goto add_err; 543 544 while (fname[strlen(fname)-1] == '/' 545 #ifdef MSWIN 546 || fname[strlen(fname)-1] == '\\' 547 #endif 548 ) 549 { 550 fname[strlen(fname)-1] = '\0'; 551 if (fname[0] == '\0') 552 break; 553 } 554 if (fname[0] == '\0') 555 (void)sprintf(fname2, "/%s", CSCOPE_DBFILE); 556 else 557 (void)sprintf(fname2, "%s/%s", fname, CSCOPE_DBFILE); 558 559 ret = mch_stat(fname2, &statbuf); 560 if (ret < 0) 561 { 562 if (p_csverbose) 563 cs_stat_emsg(fname2); 564 goto add_err; 565 } 566 567 i = cs_insert_filelist(fname2, ppath, flags, &statbuf); 568 } 569 else if (S_ISREG(statbuf.st_mode) || S_ISLNK(statbuf.st_mode)) 570 { 571 i = cs_insert_filelist(fname, ppath, flags, &statbuf); 572 } 573 else 574 { 575 if (p_csverbose) 576 (void)semsg( 577 _("E564: %s is not a directory or a valid cscope database"), 578 fname); 579 goto add_err; 580 } 581 582 if (i != -1) 583 { 584 if (cs_create_connection(i) == CSCOPE_FAILURE 585 || cs_read_prompt(i) == CSCOPE_FAILURE) 586 { 587 cs_release_csp(i, TRUE); 588 goto add_err; 589 } 590 591 if (p_csverbose) 592 { 593 msg_clr_eos(); 594 (void)smsg_attr(HL_ATTR(HLF_R), 595 _("Added cscope database %s"), 596 csinfo[i].fname); 597 } 598 } 599 600 vim_free(fname); 601 vim_free(fname2); 602 vim_free(ppath); 603 return CSCOPE_SUCCESS; 604 605 add_err: 606 vim_free(fname2); 607 vim_free(fname); 608 vim_free(ppath); 609 return CSCOPE_FAILURE; 610 } 611 612 613 static int 614 cs_check_for_connections(void) 615 { 616 return (cs_cnt_connections() > 0); 617 } 618 619 620 static int 621 cs_check_for_tags(void) 622 { 623 return (p_tags[0] != NUL && curbuf->b_p_tags != NULL); 624 } 625 626 627 /* 628 * Count the number of cscope connections. 629 */ 630 static int 631 cs_cnt_connections(void) 632 { 633 short i; 634 short cnt = 0; 635 636 for (i = 0; i < csinfo_size; i++) 637 { 638 if (csinfo[i].fname != NULL) 639 cnt++; 640 } 641 return cnt; 642 } 643 644 static void 645 cs_reading_emsg( 646 int idx) // connection index 647 { 648 semsg(_("E262: error reading cscope connection %d"), idx); 649 } 650 651 #define CSREAD_BUFSIZE 2048 652 /* 653 * Count the number of matches for a given cscope connection. 654 */ 655 static int 656 cs_cnt_matches(int idx) 657 { 658 char *stok; 659 char *buf; 660 int nlines = 0; 661 662 buf = alloc(CSREAD_BUFSIZE); 663 if (buf == NULL) 664 return 0; 665 for (;;) 666 { 667 if (!fgets(buf, CSREAD_BUFSIZE, csinfo[idx].fr_fp)) 668 { 669 if (feof(csinfo[idx].fr_fp)) 670 errno = EIO; 671 672 cs_reading_emsg(idx); 673 674 vim_free(buf); 675 return -1; 676 } 677 678 /* 679 * If the database is out of date, or there's some other problem, 680 * cscope will output error messages before the number-of-lines output. 681 * Display/discard any output that doesn't match what we want. 682 * Accept "\S*cscope: X lines", also matches "mlcscope". 683 * Bail out for the "Unable to search" error. 684 */ 685 if (strstr((const char *)buf, "Unable to search database") != NULL) 686 break; 687 if ((stok = strtok(buf, (const char *)" ")) == NULL) 688 continue; 689 if (strstr((const char *)stok, "cscope:") == NULL) 690 continue; 691 692 if ((stok = strtok(NULL, (const char *)" ")) == NULL) 693 continue; 694 nlines = atoi(stok); 695 if (nlines < 0) 696 { 697 nlines = 0; 698 break; 699 } 700 701 if ((stok = strtok(NULL, (const char *)" ")) == NULL) 702 continue; 703 if (strncmp((const char *)stok, "lines", 5)) 704 continue; 705 706 break; 707 } 708 709 vim_free(buf); 710 return nlines; 711 } 712 713 714 /* 715 * Creates the actual cscope command query from what the user entered. 716 */ 717 static char * 718 cs_create_cmd(char *csoption, char *pattern) 719 { 720 char *cmd; 721 short search; 722 char *pat; 723 724 switch (csoption[0]) 725 { 726 case '0' : case 's' : 727 search = 0; 728 break; 729 case '1' : case 'g' : 730 search = 1; 731 break; 732 case '2' : case 'd' : 733 search = 2; 734 break; 735 case '3' : case 'c' : 736 search = 3; 737 break; 738 case '4' : case 't' : 739 search = 4; 740 break; 741 case '6' : case 'e' : 742 search = 6; 743 break; 744 case '7' : case 'f' : 745 search = 7; 746 break; 747 case '8' : case 'i' : 748 search = 8; 749 break; 750 case '9' : case 'a' : 751 search = 9; 752 break; 753 default : 754 (void)emsg(_("E561: unknown cscope search type")); 755 cs_usage_msg(Find); 756 return NULL; 757 } 758 759 // Skip white space before the patter, except for text and pattern search, 760 // they may want to use the leading white space. 761 pat = pattern; 762 if (search != 4 && search != 6) 763 while VIM_ISWHITE(*pat) 764 ++pat; 765 766 if ((cmd = alloc(strlen(pat) + 2)) == NULL) 767 return NULL; 768 769 (void)sprintf(cmd, "%d%s", search, pat); 770 771 return cmd; 772 } 773 774 775 /* 776 * This piece of code was taken/adapted from nvi. do we need to add 777 * the BSD license notice? 778 */ 779 static int 780 cs_create_connection(int i) 781 { 782 #ifdef UNIX 783 int to_cs[2], from_cs[2]; 784 #endif 785 int len; 786 char *prog, *cmd, *ppath = NULL; 787 #ifdef MSWIN 788 int fd; 789 SECURITY_ATTRIBUTES sa; 790 PROCESS_INFORMATION pi; 791 STARTUPINFO si; 792 BOOL pipe_stdin = FALSE, pipe_stdout = FALSE; 793 HANDLE stdin_rd, stdout_rd; 794 HANDLE stdout_wr, stdin_wr; 795 BOOL created; 796 # if (defined(_MSC_VER) && (_MSC_VER >= 1300)) || defined(__MINGW32__) 797 # define OPEN_OH_ARGTYPE intptr_t 798 # else 799 # define OPEN_OH_ARGTYPE long 800 # endif 801 #endif 802 803 #if defined(UNIX) 804 /* 805 * Cscope reads from to_cs[0] and writes to from_cs[1]; vi reads from 806 * from_cs[0] and writes to to_cs[1]. 807 */ 808 to_cs[0] = to_cs[1] = from_cs[0] = from_cs[1] = -1; 809 if (pipe(to_cs) < 0 || pipe(from_cs) < 0) 810 { 811 (void)emsg(_("E566: Could not create cscope pipes")); 812 err_closing: 813 if (to_cs[0] != -1) 814 (void)close(to_cs[0]); 815 if (to_cs[1] != -1) 816 (void)close(to_cs[1]); 817 if (from_cs[0] != -1) 818 (void)close(from_cs[0]); 819 if (from_cs[1] != -1) 820 (void)close(from_cs[1]); 821 return CSCOPE_FAILURE; 822 } 823 824 switch (csinfo[i].pid = fork()) 825 { 826 case -1: 827 (void)emsg(_("E622: Could not fork for cscope")); 828 goto err_closing; 829 case 0: // child: run cscope. 830 if (dup2(to_cs[0], STDIN_FILENO) == -1) 831 PERROR("cs_create_connection 1"); 832 if (dup2(from_cs[1], STDOUT_FILENO) == -1) 833 PERROR("cs_create_connection 2"); 834 if (dup2(from_cs[1], STDERR_FILENO) == -1) 835 PERROR("cs_create_connection 3"); 836 837 // close unused 838 (void)close(to_cs[1]); 839 (void)close(from_cs[0]); 840 #else 841 // MSWIN 842 // Create pipes to communicate with cscope 843 sa.nLength = sizeof(SECURITY_ATTRIBUTES); 844 sa.bInheritHandle = TRUE; 845 sa.lpSecurityDescriptor = NULL; 846 847 if (!(pipe_stdin = CreatePipe(&stdin_rd, &stdin_wr, &sa, 0)) 848 || !(pipe_stdout = CreatePipe(&stdout_rd, &stdout_wr, &sa, 0))) 849 { 850 (void)emsg(_("E566: Could not create cscope pipes")); 851 err_closing: 852 if (pipe_stdin) 853 { 854 CloseHandle(stdin_rd); 855 CloseHandle(stdin_wr); 856 } 857 if (pipe_stdout) 858 { 859 CloseHandle(stdout_rd); 860 CloseHandle(stdout_wr); 861 } 862 return CSCOPE_FAILURE; 863 } 864 #endif 865 // expand the cscope exec for env var's 866 if ((prog = alloc(MAXPATHL + 1)) == NULL) 867 { 868 #ifdef UNIX 869 return CSCOPE_FAILURE; 870 #else 871 // MSWIN 872 goto err_closing; 873 #endif 874 } 875 expand_env((char_u *)p_csprg, (char_u *)prog, MAXPATHL); 876 877 // alloc space to hold the cscope command 878 len = (int)(strlen(prog) + strlen(csinfo[i].fname) + 32); 879 if (csinfo[i].ppath) 880 { 881 // expand the prepend path for env var's 882 if ((ppath = alloc(MAXPATHL + 1)) == NULL) 883 { 884 vim_free(prog); 885 #ifdef UNIX 886 return CSCOPE_FAILURE; 887 #else 888 // MSWIN 889 goto err_closing; 890 #endif 891 } 892 expand_env((char_u *)csinfo[i].ppath, (char_u *)ppath, MAXPATHL); 893 894 len += (int)strlen(ppath); 895 } 896 897 if (csinfo[i].flags) 898 len += (int)strlen(csinfo[i].flags); 899 900 if ((cmd = alloc(len)) == NULL) 901 { 902 vim_free(prog); 903 vim_free(ppath); 904 #ifdef UNIX 905 return CSCOPE_FAILURE; 906 #else 907 // MSWIN 908 goto err_closing; 909 #endif 910 } 911 912 // run the cscope command; is there execl for non-unix systems? 913 #if defined(UNIX) 914 (void)sprintf(cmd, "exec %s -dl -f %s", prog, csinfo[i].fname); 915 #else 916 // MSWIN 917 (void)sprintf(cmd, "%s -dl -f %s", prog, csinfo[i].fname); 918 #endif 919 if (csinfo[i].ppath != NULL) 920 { 921 (void)strcat(cmd, " -P"); 922 (void)strcat(cmd, csinfo[i].ppath); 923 } 924 if (csinfo[i].flags != NULL) 925 { 926 (void)strcat(cmd, " "); 927 (void)strcat(cmd, csinfo[i].flags); 928 } 929 # ifdef UNIX 930 // on Win32 we still need prog 931 vim_free(prog); 932 # endif 933 vim_free(ppath); 934 935 #if defined(UNIX) 936 # if defined(HAVE_SETSID) || defined(HAVE_SETPGID) 937 // Change our process group to avoid cscope receiving SIGWINCH. 938 # if defined(HAVE_SETSID) 939 (void)setsid(); 940 # else 941 if (setpgid(0, 0) == -1) 942 PERROR(_("cs_create_connection setpgid failed")); 943 # endif 944 # endif 945 if (execl("/bin/sh", "sh", "-c", cmd, (char *)NULL) == -1) 946 PERROR(_("cs_create_connection exec failed")); 947 948 exit(127); 949 // NOTREACHED 950 default: // parent. 951 /* 952 * Save the file descriptors for later duplication, and 953 * reopen as streams. 954 */ 955 if ((csinfo[i].to_fp = fdopen(to_cs[1], "w")) == NULL) 956 PERROR(_("cs_create_connection: fdopen for to_fp failed")); 957 if ((csinfo[i].fr_fp = fdopen(from_cs[0], "r")) == NULL) 958 PERROR(_("cs_create_connection: fdopen for fr_fp failed")); 959 960 // close unused 961 (void)close(to_cs[0]); 962 (void)close(from_cs[1]); 963 964 break; 965 } 966 967 #else 968 // MSWIN 969 // Create a new process to run cscope and use pipes to talk with it 970 GetStartupInfo(&si); 971 si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW; 972 si.wShowWindow = SW_HIDE; // Hide child application window 973 si.hStdOutput = stdout_wr; 974 si.hStdError = stdout_wr; 975 si.hStdInput = stdin_rd; 976 created = CreateProcess(NULL, cmd, NULL, NULL, TRUE, CREATE_NEW_CONSOLE, 977 NULL, NULL, &si, &pi); 978 vim_free(prog); 979 vim_free(cmd); 980 981 if (!created) 982 { 983 PERROR(_("cs_create_connection exec failed")); 984 (void)emsg(_("E623: Could not spawn cscope process")); 985 goto err_closing; 986 } 987 // else 988 csinfo[i].pid = pi.dwProcessId; 989 csinfo[i].hProc = pi.hProcess; 990 CloseHandle(pi.hThread); 991 992 // TODO - tidy up after failure to create files on pipe handles. 993 if (((fd = _open_osfhandle((OPEN_OH_ARGTYPE)stdin_wr, 994 _O_TEXT|_O_APPEND)) < 0) 995 || ((csinfo[i].to_fp = _fdopen(fd, "w")) == NULL)) 996 PERROR(_("cs_create_connection: fdopen for to_fp failed")); 997 if (((fd = _open_osfhandle((OPEN_OH_ARGTYPE)stdout_rd, 998 _O_TEXT|_O_RDONLY)) < 0) 999 || ((csinfo[i].fr_fp = _fdopen(fd, "r")) == NULL)) 1000 PERROR(_("cs_create_connection: fdopen for fr_fp failed")); 1001 1002 // Close handles for file descriptors inherited by the cscope process 1003 CloseHandle(stdin_rd); 1004 CloseHandle(stdout_wr); 1005 1006 #endif // !UNIX 1007 1008 return CSCOPE_SUCCESS; 1009 } 1010 1011 1012 /* 1013 * Query cscope using command line interface. Parse the output and use tselect 1014 * to allow choices. Like Nvi, creates a pipe to send to/from query/cscope. 1015 * 1016 * returns TRUE if we jump to a tag or abort, FALSE if not. 1017 */ 1018 static int 1019 cs_find(exarg_T *eap) 1020 { 1021 char *opt, *pat; 1022 int i; 1023 1024 if (cs_check_for_connections() == FALSE) 1025 { 1026 (void)emsg(_("E567: no cscope connections")); 1027 return FALSE; 1028 } 1029 1030 if ((opt = strtok((char *)NULL, (const char *)" ")) == NULL) 1031 { 1032 cs_usage_msg(Find); 1033 return FALSE; 1034 } 1035 1036 pat = opt + strlen(opt) + 1; 1037 if (pat >= (char *)eap->arg + eap_arg_len) 1038 { 1039 cs_usage_msg(Find); 1040 return FALSE; 1041 } 1042 1043 /* 1044 * Let's replace the NULs written by strtok() with spaces - we need the 1045 * spaces to correctly display the quickfix/location list window's title. 1046 */ 1047 for (i = 0; i < eap_arg_len; ++i) 1048 if (NUL == eap->arg[i]) 1049 eap->arg[i] = ' '; 1050 1051 return cs_find_common(opt, pat, eap->forceit, TRUE, 1052 eap->cmdidx == CMD_lcscope, *eap->cmdlinep); 1053 } 1054 1055 1056 /* 1057 * Common code for cscope find, shared by cs_find() and ex_cstag(). 1058 */ 1059 static int 1060 cs_find_common( 1061 char *opt, 1062 char *pat, 1063 int forceit, 1064 int verbose, 1065 int use_ll UNUSED, 1066 char_u *cmdline UNUSED) 1067 { 1068 int i; 1069 char *cmd; 1070 int *nummatches; 1071 int totmatches; 1072 #ifdef FEAT_QUICKFIX 1073 char cmdletter; 1074 char *qfpos; 1075 1076 // get cmd letter 1077 switch (opt[0]) 1078 { 1079 case '0' : 1080 cmdletter = 's'; 1081 break; 1082 case '1' : 1083 cmdletter = 'g'; 1084 break; 1085 case '2' : 1086 cmdletter = 'd'; 1087 break; 1088 case '3' : 1089 cmdletter = 'c'; 1090 break; 1091 case '4' : 1092 cmdletter = 't'; 1093 break; 1094 case '6' : 1095 cmdletter = 'e'; 1096 break; 1097 case '7' : 1098 cmdletter = 'f'; 1099 break; 1100 case '8' : 1101 cmdletter = 'i'; 1102 break; 1103 case '9' : 1104 cmdletter = 'a'; 1105 break; 1106 default : 1107 cmdletter = opt[0]; 1108 } 1109 1110 qfpos = (char *)vim_strchr(p_csqf, cmdletter); 1111 if (qfpos != NULL) 1112 { 1113 qfpos++; 1114 // next symbol must be + or - 1115 if (strchr(CSQF_FLAGS, *qfpos) == NULL) 1116 { 1117 char *nf = _("E469: invalid cscopequickfix flag %c for %c"); 1118 char *buf = alloc(strlen(nf)); 1119 1120 // strlen will be enough because we use chars 1121 if (buf != NULL) 1122 { 1123 sprintf(buf, nf, *qfpos, *(qfpos-1)); 1124 (void)emsg(buf); 1125 vim_free(buf); 1126 } 1127 return FALSE; 1128 } 1129 1130 if (*qfpos != '0' 1131 && apply_autocmds(EVENT_QUICKFIXCMDPRE, (char_u *)"cscope", 1132 curbuf->b_fname, TRUE, curbuf)) 1133 { 1134 # ifdef FEAT_EVAL 1135 if (aborting()) 1136 return FALSE; 1137 # endif 1138 } 1139 } 1140 #endif 1141 1142 // create the actual command to send to cscope 1143 cmd = cs_create_cmd(opt, pat); 1144 if (cmd == NULL) 1145 return FALSE; 1146 1147 nummatches = ALLOC_MULT(int, csinfo_size); 1148 if (nummatches == NULL) 1149 { 1150 vim_free(cmd); 1151 return FALSE; 1152 } 1153 1154 // Send query to all open connections, then count the total number 1155 // of matches so we can alloc all in one swell foop. 1156 for (i = 0; i < csinfo_size; i++) 1157 nummatches[i] = 0; 1158 totmatches = 0; 1159 for (i = 0; i < csinfo_size; i++) 1160 { 1161 if (csinfo[i].fname == NULL || csinfo[i].to_fp == NULL) 1162 continue; 1163 1164 // send cmd to cscope 1165 (void)fprintf(csinfo[i].to_fp, "%s\n", cmd); 1166 (void)fflush(csinfo[i].to_fp); 1167 1168 nummatches[i] = cs_cnt_matches(i); 1169 1170 if (nummatches[i] > -1) 1171 totmatches += nummatches[i]; 1172 1173 if (nummatches[i] == 0) 1174 (void)cs_read_prompt(i); 1175 } 1176 vim_free(cmd); 1177 1178 if (totmatches == 0) 1179 { 1180 char *nf = _("E259: no matches found for cscope query %s of %s"); 1181 char *buf; 1182 1183 if (!verbose) 1184 { 1185 vim_free(nummatches); 1186 return FALSE; 1187 } 1188 1189 buf = alloc(strlen(opt) + strlen(pat) + strlen(nf)); 1190 if (buf == NULL) 1191 (void)emsg(nf); 1192 else 1193 { 1194 sprintf(buf, nf, opt, pat); 1195 (void)emsg(buf); 1196 vim_free(buf); 1197 } 1198 vim_free(nummatches); 1199 return FALSE; 1200 } 1201 1202 #ifdef FEAT_QUICKFIX 1203 if (qfpos != NULL && *qfpos != '0' && totmatches > 0) 1204 { 1205 // fill error list 1206 FILE *f; 1207 char_u *tmp = vim_tempname('c', TRUE); 1208 qf_info_T *qi = NULL; 1209 win_T *wp = NULL; 1210 1211 f = mch_fopen((char *)tmp, "w"); 1212 if (f == NULL) 1213 semsg(_(e_notopen), tmp); 1214 else 1215 { 1216 cs_file_results(f, nummatches); 1217 fclose(f); 1218 if (use_ll) // Use location list 1219 wp = curwin; 1220 // '-' starts a new error list 1221 if (qf_init(wp, tmp, (char_u *)"%f%*\\t%l%*\\t%m", 1222 *qfpos == '-', cmdline, NULL) > 0) 1223 { 1224 if (postponed_split != 0) 1225 { 1226 (void)win_split(postponed_split > 0 ? postponed_split : 0, 1227 postponed_split_flags); 1228 RESET_BINDING(curwin); 1229 postponed_split = 0; 1230 } 1231 1232 apply_autocmds(EVENT_QUICKFIXCMDPOST, (char_u *)"cscope", 1233 curbuf->b_fname, TRUE, curbuf); 1234 if (use_ll) 1235 /* 1236 * In the location list window, use the displayed location 1237 * list. Otherwise, use the location list for the window. 1238 */ 1239 qi = (bt_quickfix(wp->w_buffer) && wp->w_llist_ref != NULL) 1240 ? wp->w_llist_ref : wp->w_llist; 1241 qf_jump(qi, 0, 0, forceit); 1242 } 1243 } 1244 mch_remove(tmp); 1245 vim_free(tmp); 1246 vim_free(nummatches); 1247 return TRUE; 1248 } 1249 else 1250 #endif // FEAT_QUICKFIX 1251 { 1252 char **matches = NULL, **contexts = NULL; 1253 int matched = 0; 1254 1255 // read output 1256 cs_fill_results(pat, totmatches, nummatches, &matches, 1257 &contexts, &matched); 1258 vim_free(nummatches); 1259 if (matches == NULL) 1260 return FALSE; 1261 1262 (void)cs_manage_matches(matches, contexts, matched, Store); 1263 1264 return do_tag((char_u *)pat, DT_CSCOPE, 0, forceit, verbose); 1265 } 1266 1267 } 1268 1269 /* 1270 * Print help. 1271 */ 1272 static int 1273 cs_help(exarg_T *eap UNUSED) 1274 { 1275 cscmd_T *cmdp = cs_cmds; 1276 1277 (void)msg_puts(_("cscope commands:\n")); 1278 while (cmdp->name != NULL) 1279 { 1280 char *help = _(cmdp->help); 1281 int space_cnt = 30 - vim_strsize((char_u *)help); 1282 1283 // Use %*s rather than %30s to ensure proper alignment in utf-8 1284 if (space_cnt < 0) 1285 space_cnt = 0; 1286 (void)smsg(_("%-5s: %s%*s (Usage: %s)"), 1287 cmdp->name, 1288 help, space_cnt, " ", 1289 cmdp->usage); 1290 if (strcmp(cmdp->name, "find") == 0) 1291 msg_puts(_("\n" 1292 " a: Find assignments to this symbol\n" 1293 " c: Find functions calling this function\n" 1294 " d: Find functions called by this function\n" 1295 " e: Find this egrep pattern\n" 1296 " f: Find this file\n" 1297 " g: Find this definition\n" 1298 " i: Find files #including this file\n" 1299 " s: Find this C symbol\n" 1300 " t: Find this text string\n")); 1301 1302 cmdp++; 1303 } 1304 1305 wait_return(TRUE); 1306 return 0; 1307 } 1308 1309 1310 static void 1311 clear_csinfo(int i) 1312 { 1313 csinfo[i].fname = NULL; 1314 csinfo[i].ppath = NULL; 1315 csinfo[i].flags = NULL; 1316 #if defined(UNIX) 1317 csinfo[i].st_dev = (dev_t)0; 1318 csinfo[i].st_ino = (ino_t)0; 1319 #else 1320 csinfo[i].nVolume = 0; 1321 csinfo[i].nIndexHigh = 0; 1322 csinfo[i].nIndexLow = 0; 1323 #endif 1324 csinfo[i].pid = 0; 1325 csinfo[i].fr_fp = NULL; 1326 csinfo[i].to_fp = NULL; 1327 #if defined(MSWIN) 1328 csinfo[i].hProc = NULL; 1329 #endif 1330 } 1331 1332 /* 1333 * Insert a new cscope database filename into the filelist. 1334 */ 1335 static int 1336 cs_insert_filelist( 1337 char *fname, 1338 char *ppath, 1339 char *flags, 1340 stat_T *sb UNUSED) 1341 { 1342 short i, j; 1343 #ifndef UNIX 1344 BY_HANDLE_FILE_INFORMATION bhfi; 1345 1346 switch (win32_fileinfo((char_u *)fname, &bhfi)) 1347 { 1348 case FILEINFO_ENC_FAIL: // enc_to_utf16() failed 1349 case FILEINFO_READ_FAIL: // CreateFile() failed 1350 if (p_csverbose) 1351 { 1352 char *cant_msg = _("E625: cannot open cscope database: %s"); 1353 char *winmsg = GetWin32Error(); 1354 1355 if (winmsg != NULL) 1356 { 1357 (void)semsg(cant_msg, winmsg); 1358 LocalFree(winmsg); 1359 } 1360 else 1361 // subst filename if can't get error text 1362 (void)semsg(cant_msg, fname); 1363 } 1364 return -1; 1365 1366 case FILEINFO_INFO_FAIL: // GetFileInformationByHandle() failed 1367 if (p_csverbose) 1368 (void)emsg(_("E626: cannot get cscope database information")); 1369 return -1; 1370 } 1371 #endif 1372 1373 i = -1; // can be set to the index of an empty item in csinfo 1374 for (j = 0; j < csinfo_size; j++) 1375 { 1376 if (csinfo[j].fname != NULL 1377 #if defined(UNIX) 1378 && csinfo[j].st_dev == sb->st_dev && csinfo[j].st_ino == sb->st_ino 1379 #else 1380 // compare pathnames first 1381 && ((fullpathcmp((char_u *)csinfo[j].fname, 1382 (char_u *)fname, FALSE, TRUE) & FPC_SAME) 1383 // test index file attributes too 1384 || (csinfo[j].nVolume == bhfi.dwVolumeSerialNumber 1385 && csinfo[j].nIndexHigh == bhfi.nFileIndexHigh 1386 && csinfo[j].nIndexLow == bhfi.nFileIndexLow)) 1387 #endif 1388 ) 1389 { 1390 if (p_csverbose) 1391 (void)emsg(_("E568: duplicate cscope database not added")); 1392 return -1; 1393 } 1394 1395 if (csinfo[j].fname == NULL && i == -1) 1396 i = j; // remember first empty entry 1397 } 1398 1399 if (i == -1) 1400 { 1401 i = csinfo_size; 1402 if (csinfo_size == 0) 1403 { 1404 // First time allocation: allocate only 1 connection. It should 1405 // be enough for most users. If more is needed, csinfo will be 1406 // reallocated. 1407 csinfo_size = 1; 1408 csinfo = ALLOC_CLEAR_ONE(csinfo_T); 1409 } 1410 else 1411 { 1412 csinfo_T *t_csinfo = csinfo; 1413 1414 // Reallocate space for more connections. 1415 csinfo_size *= 2; 1416 csinfo = vim_realloc(csinfo, sizeof(csinfo_T)*csinfo_size); 1417 if (csinfo == NULL) 1418 { 1419 vim_free(t_csinfo); 1420 csinfo_size = 0; 1421 } 1422 } 1423 if (csinfo == NULL) 1424 return -1; 1425 for (j = csinfo_size/2; j < csinfo_size; j++) 1426 clear_csinfo(j); 1427 } 1428 1429 if ((csinfo[i].fname = alloc(strlen(fname)+1)) == NULL) 1430 return -1; 1431 1432 (void)strcpy(csinfo[i].fname, (const char *)fname); 1433 1434 if (ppath != NULL) 1435 { 1436 if ((csinfo[i].ppath = alloc(strlen(ppath) + 1)) == NULL) 1437 { 1438 VIM_CLEAR(csinfo[i].fname); 1439 return -1; 1440 } 1441 (void)strcpy(csinfo[i].ppath, (const char *)ppath); 1442 } else 1443 csinfo[i].ppath = NULL; 1444 1445 if (flags != NULL) 1446 { 1447 if ((csinfo[i].flags = alloc(strlen(flags) + 1)) == NULL) 1448 { 1449 VIM_CLEAR(csinfo[i].fname); 1450 VIM_CLEAR(csinfo[i].ppath); 1451 return -1; 1452 } 1453 (void)strcpy(csinfo[i].flags, (const char *)flags); 1454 } else 1455 csinfo[i].flags = NULL; 1456 1457 #if defined(UNIX) 1458 csinfo[i].st_dev = sb->st_dev; 1459 csinfo[i].st_ino = sb->st_ino; 1460 1461 #else 1462 csinfo[i].nVolume = bhfi.dwVolumeSerialNumber; 1463 csinfo[i].nIndexLow = bhfi.nFileIndexLow; 1464 csinfo[i].nIndexHigh = bhfi.nFileIndexHigh; 1465 #endif 1466 return i; 1467 } 1468 1469 1470 /* 1471 * Find cscope command in command table. 1472 */ 1473 static cscmd_T * 1474 cs_lookup_cmd(exarg_T *eap) 1475 { 1476 cscmd_T *cmdp; 1477 char *stok; 1478 size_t len; 1479 1480 if (eap->arg == NULL) 1481 return NULL; 1482 1483 // Store length of eap->arg before it gets modified by strtok(). 1484 eap_arg_len = (int)STRLEN(eap->arg); 1485 1486 if ((stok = strtok((char *)(eap->arg), (const char *)" ")) == NULL) 1487 return NULL; 1488 1489 len = strlen(stok); 1490 for (cmdp = cs_cmds; cmdp->name != NULL; ++cmdp) 1491 { 1492 if (strncmp((const char *)(stok), cmdp->name, len) == 0) 1493 return (cmdp); 1494 } 1495 return NULL; 1496 } 1497 1498 1499 /* 1500 * Nuke em. 1501 */ 1502 static int 1503 cs_kill(exarg_T *eap UNUSED) 1504 { 1505 char *stok; 1506 short i; 1507 1508 if ((stok = strtok((char *)NULL, (const char *)" ")) == NULL) 1509 { 1510 cs_usage_msg(Kill); 1511 return CSCOPE_FAILURE; 1512 } 1513 1514 // only single digit positive and negative integers are allowed 1515 if ((strlen(stok) < 2 && VIM_ISDIGIT((int)(stok[0]))) 1516 || (strlen(stok) < 3 && stok[0] == '-' 1517 && VIM_ISDIGIT((int)(stok[1])))) 1518 i = atoi(stok); 1519 else 1520 { 1521 // It must be part of a name. We will try to find a match 1522 // within all the names in the csinfo data structure 1523 for (i = 0; i < csinfo_size; i++) 1524 { 1525 if (csinfo[i].fname != NULL && strstr(csinfo[i].fname, stok)) 1526 break; 1527 } 1528 } 1529 1530 if ((i != -1) && (i >= csinfo_size || i < -1 || csinfo[i].fname == NULL)) 1531 { 1532 if (p_csverbose) 1533 (void)semsg(_("E261: cscope connection %s not found"), stok); 1534 } 1535 else 1536 { 1537 if (i == -1) 1538 { 1539 for (i = 0; i < csinfo_size; i++) 1540 { 1541 if (csinfo[i].fname) 1542 cs_kill_execute(i, csinfo[i].fname); 1543 } 1544 } 1545 else 1546 cs_kill_execute(i, stok); 1547 } 1548 1549 return 0; 1550 } 1551 1552 1553 /* 1554 * Actually kills a specific cscope connection. 1555 */ 1556 static void 1557 cs_kill_execute( 1558 int i, // cscope table index 1559 char *cname) // cscope database name 1560 { 1561 if (p_csverbose) 1562 { 1563 msg_clr_eos(); 1564 (void)smsg_attr(HL_ATTR(HLF_R) | MSG_HIST, 1565 _("cscope connection %s closed"), cname); 1566 } 1567 cs_release_csp(i, TRUE); 1568 } 1569 1570 1571 /* 1572 * Convert the cscope output into a ctags style entry (as might be found 1573 * in a ctags tags file). there's one catch though: cscope doesn't tell you 1574 * the type of the tag you are looking for. for example, in Darren Hiebert's 1575 * ctags (the one that comes with vim), #define's use a line number to find the 1576 * tag in a file while function definitions use a regexp search pattern. 1577 * 1578 * I'm going to always use the line number because cscope does something 1579 * quirky (and probably other things i don't know about): 1580 * 1581 * if you have "# define" in your source file, which is 1582 * perfectly legal, cscope thinks you have "#define". this 1583 * will result in a failed regexp search. :( 1584 * 1585 * Besides, even if this particular case didn't happen, the search pattern 1586 * would still have to be modified to escape all the special regular expression 1587 * characters to comply with ctags formatting. 1588 */ 1589 static char * 1590 cs_make_vim_style_matches( 1591 char *fname, 1592 char *slno, 1593 char *search, 1594 char *tagstr) 1595 { 1596 // vim style is ctags: 1597 // 1598 // <tagstr>\t<filename>\t<linenum_or_search>"\t<extra> 1599 // 1600 // but as mentioned above, we'll always use the line number and 1601 // put the search pattern (if one exists) as "extra" 1602 // 1603 // buf is used as part of vim's method of handling tags, and 1604 // (i think) vim frees it when you pop your tags and get replaced 1605 // by new ones on the tag stack. 1606 char *buf; 1607 int amt; 1608 1609 if (search != NULL) 1610 { 1611 amt = (int)(strlen(fname) + strlen(slno) + strlen(tagstr) + strlen(search)+6); 1612 if ((buf = alloc(amt)) == NULL) 1613 return NULL; 1614 1615 (void)sprintf(buf, "%s\t%s\t%s;\"\t%s", tagstr, fname, slno, search); 1616 } 1617 else 1618 { 1619 amt = (int)(strlen(fname) + strlen(slno) + strlen(tagstr) + 5); 1620 if ((buf = alloc(amt)) == NULL) 1621 return NULL; 1622 1623 (void)sprintf(buf, "%s\t%s\t%s;\"", tagstr, fname, slno); 1624 } 1625 1626 return buf; 1627 } 1628 1629 1630 /* 1631 * This is kind of hokey, but i don't see an easy way round this. 1632 * 1633 * Store: keep a ptr to the (malloc'd) memory of matches originally 1634 * generated from cs_find(). the matches are originally lines directly 1635 * from cscope output, but transformed to look like something out of a 1636 * ctags. see cs_make_vim_style_matches for more details. 1637 * 1638 * Get: used only from cs_fgets(), this simulates a vim_fgets() to return 1639 * the next line from the cscope output. it basically keeps track of which 1640 * lines have been "used" and returns the next one. 1641 * 1642 * Free: frees up everything and resets 1643 * 1644 * Print: prints the tags 1645 */ 1646 static char * 1647 cs_manage_matches( 1648 char **matches, 1649 char **contexts, 1650 int totmatches, 1651 mcmd_e cmd) 1652 { 1653 static char **mp = NULL; 1654 static char **cp = NULL; 1655 static int cnt = -1; 1656 static int next = -1; 1657 char *p = NULL; 1658 1659 switch (cmd) 1660 { 1661 case Store: 1662 assert(matches != NULL); 1663 assert(totmatches > 0); 1664 if (mp != NULL || cp != NULL) 1665 (void)cs_manage_matches(NULL, NULL, -1, Free); 1666 mp = matches; 1667 cp = contexts; 1668 cnt = totmatches; 1669 next = 0; 1670 break; 1671 case Get: 1672 if (next >= cnt) 1673 return NULL; 1674 1675 p = mp[next]; 1676 next++; 1677 break; 1678 case Free: 1679 if (mp != NULL) 1680 { 1681 if (cnt > 0) 1682 while (cnt--) 1683 { 1684 vim_free(mp[cnt]); 1685 if (cp != NULL) 1686 vim_free(cp[cnt]); 1687 } 1688 vim_free(mp); 1689 vim_free(cp); 1690 } 1691 mp = NULL; 1692 cp = NULL; 1693 cnt = 0; 1694 next = 0; 1695 break; 1696 case Print: 1697 cs_print_tags_priv(mp, cp, cnt); 1698 break; 1699 default: // should not reach here 1700 iemsg(_("E570: fatal error in cs_manage_matches")); 1701 return NULL; 1702 } 1703 1704 return p; 1705 } 1706 1707 1708 /* 1709 * Parse cscope output. 1710 */ 1711 static char * 1712 cs_parse_results( 1713 int cnumber, 1714 char *buf, 1715 int bufsize, 1716 char **context, 1717 char **linenumber, 1718 char **search) 1719 { 1720 int ch; 1721 char *p; 1722 char *name; 1723 1724 if (fgets(buf, bufsize, csinfo[cnumber].fr_fp) == NULL) 1725 { 1726 if (feof(csinfo[cnumber].fr_fp)) 1727 errno = EIO; 1728 1729 cs_reading_emsg(cnumber); 1730 1731 return NULL; 1732 } 1733 1734 // If the line's too long for the buffer, discard it. 1735 if ((p = strchr(buf, '\n')) == NULL) 1736 { 1737 while ((ch = getc(csinfo[cnumber].fr_fp)) != EOF && ch != '\n') 1738 ; 1739 return NULL; 1740 } 1741 *p = '\0'; 1742 1743 /* 1744 * cscope output is in the following format: 1745 * 1746 * <filename> <context> <line number> <pattern> 1747 */ 1748 if ((name = strtok(buf, (const char *)" ")) == NULL) 1749 return NULL; 1750 if ((*context = strtok(NULL, (const char *)" ")) == NULL) 1751 return NULL; 1752 if ((*linenumber = strtok(NULL, (const char *)" ")) == NULL) 1753 return NULL; 1754 *search = *linenumber + strlen(*linenumber) + 1; // +1 to skip \0 1755 1756 // --- nvi --- 1757 // If the file is older than the cscope database, that is, 1758 // the database was built since the file was last modified, 1759 // or there wasn't a search string, use the line number. 1760 if (strcmp(*search, "<unknown>") == 0) 1761 *search = NULL; 1762 1763 name = cs_resolve_file(cnumber, name); 1764 return name; 1765 } 1766 1767 #ifdef FEAT_QUICKFIX 1768 /* 1769 * Write cscope find results to file. 1770 */ 1771 static void 1772 cs_file_results(FILE *f, int *nummatches_a) 1773 { 1774 int i, j; 1775 char *buf; 1776 char *search, *slno; 1777 char *fullname; 1778 char *cntx; 1779 char *context; 1780 1781 buf = alloc(CSREAD_BUFSIZE); 1782 if (buf == NULL) 1783 return; 1784 1785 for (i = 0; i < csinfo_size; i++) 1786 { 1787 if (nummatches_a[i] < 1) 1788 continue; 1789 1790 for (j = 0; j < nummatches_a[i]; j++) 1791 { 1792 if ((fullname = cs_parse_results(i, buf, CSREAD_BUFSIZE, &cntx, 1793 &slno, &search)) == NULL) 1794 continue; 1795 1796 context = alloc(strlen(cntx)+5); 1797 if (context == NULL) 1798 { 1799 vim_free(fullname); 1800 continue; 1801 } 1802 1803 if (strcmp(cntx, "<global>")==0) 1804 strcpy(context, "<<global>>"); 1805 else 1806 sprintf(context, "<<%s>>", cntx); 1807 1808 if (search == NULL) 1809 fprintf(f, "%s\t%s\t%s\n", fullname, slno, context); 1810 else 1811 fprintf(f, "%s\t%s\t%s %s\n", fullname, slno, context, search); 1812 1813 vim_free(context); 1814 vim_free(fullname); 1815 } // for all matches 1816 1817 (void)cs_read_prompt(i); 1818 1819 } // for all cscope connections 1820 vim_free(buf); 1821 } 1822 #endif 1823 1824 /* 1825 * Get parsed cscope output and calls cs_make_vim_style_matches to convert 1826 * into ctags format. 1827 * When there are no matches sets "*matches_p" to NULL. 1828 */ 1829 static void 1830 cs_fill_results( 1831 char *tagstr, 1832 int totmatches, 1833 int *nummatches_a, 1834 char ***matches_p, 1835 char ***cntxts_p, 1836 int *matched) 1837 { 1838 int i, j; 1839 char *buf; 1840 char *search, *slno; 1841 int totsofar = 0; 1842 char **matches = NULL; 1843 char **cntxts = NULL; 1844 char *fullname; 1845 char *cntx; 1846 1847 assert(totmatches > 0); 1848 1849 buf = alloc(CSREAD_BUFSIZE); 1850 if (buf == NULL) 1851 return; 1852 1853 if ((matches = ALLOC_MULT(char *, totmatches)) == NULL) 1854 goto parse_out; 1855 if ((cntxts = ALLOC_MULT(char *, totmatches)) == NULL) 1856 goto parse_out; 1857 1858 for (i = 0; i < csinfo_size; i++) 1859 { 1860 if (nummatches_a[i] < 1) 1861 continue; 1862 1863 for (j = 0; j < nummatches_a[i]; j++) 1864 { 1865 if ((fullname = cs_parse_results(i, buf, CSREAD_BUFSIZE, &cntx, 1866 &slno, &search)) == NULL) 1867 continue; 1868 1869 matches[totsofar] = cs_make_vim_style_matches(fullname, slno, 1870 search, tagstr); 1871 1872 vim_free(fullname); 1873 1874 if (strcmp(cntx, "<global>") == 0) 1875 cntxts[totsofar] = NULL; 1876 else 1877 // note: if vim_strsave returns NULL, then the context 1878 // will be "<global>", which is misleading. 1879 cntxts[totsofar] = (char *)vim_strsave((char_u *)cntx); 1880 1881 if (matches[totsofar] != NULL) 1882 totsofar++; 1883 1884 } // for all matches 1885 1886 (void)cs_read_prompt(i); 1887 1888 } // for all cscope connections 1889 1890 parse_out: 1891 if (totsofar == 0) 1892 { 1893 // No matches, free the arrays and return NULL in "*matches_p". 1894 VIM_CLEAR(matches); 1895 VIM_CLEAR(cntxts); 1896 } 1897 *matched = totsofar; 1898 *matches_p = matches; 1899 *cntxts_p = cntxts; 1900 1901 vim_free(buf); 1902 } 1903 1904 1905 /* 1906 * get the requested path components 1907 */ 1908 static char * 1909 cs_pathcomponents(char *path) 1910 { 1911 int i; 1912 char *s; 1913 1914 if (p_cspc == 0) 1915 return path; 1916 1917 s = path + strlen(path) - 1; 1918 for (i = 0; i < p_cspc; ++i) 1919 while (s > path && *--s != '/' 1920 #ifdef MSWIN 1921 && *--s != '\\' 1922 #endif 1923 ) 1924 ; 1925 if ((s > path && *s == '/') 1926 #ifdef MSWIN 1927 || (s > path && *s == '\\') 1928 #endif 1929 ) 1930 ++s; 1931 return s; 1932 } 1933 1934 /* 1935 * Called from cs_manage_matches(). 1936 */ 1937 static void 1938 cs_print_tags_priv(char **matches, char **cntxts, int num_matches) 1939 { 1940 char *buf = NULL; 1941 char *t_buf; 1942 int bufsize = 0; // Track available bufsize 1943 int newsize = 0; 1944 char *ptag; 1945 char *fname, *lno, *extra, *tbuf; 1946 int i, idx, num; 1947 char *globalcntx = "GLOBAL"; 1948 char *cntxformat = " <<%s>>"; 1949 char *context; 1950 char *cstag_msg = _("Cscope tag: %s"); 1951 char *csfmt_str = "%4d %6s "; 1952 1953 assert(num_matches > 0); 1954 1955 if ((tbuf = alloc(strlen(matches[0]) + 1)) == NULL) 1956 return; 1957 1958 strcpy(tbuf, matches[0]); 1959 ptag = strtok(tbuf, "\t"); 1960 if (ptag == NULL) 1961 { 1962 vim_free(tbuf); 1963 return; 1964 } 1965 1966 newsize = (int)(strlen(cstag_msg) + strlen(ptag)); 1967 buf = alloc(newsize); 1968 if (buf != NULL) 1969 { 1970 bufsize = newsize; 1971 (void)sprintf(buf, cstag_msg, ptag); 1972 msg_puts_attr(buf, HL_ATTR(HLF_T)); 1973 } 1974 1975 vim_free(tbuf); 1976 1977 msg_puts_attr(_("\n # line"), HL_ATTR(HLF_T)); // strlen is 7 1978 msg_advance(msg_col + 2); 1979 msg_puts_attr(_("filename / context / line\n"), HL_ATTR(HLF_T)); 1980 1981 num = 1; 1982 for (i = 0; i < num_matches; i++) 1983 { 1984 idx = i; 1985 1986 // if we really wanted to, we could avoid this malloc and strcpy 1987 // by parsing matches[i] on the fly and placing stuff into buf 1988 // directly, but that's too much of a hassle 1989 if ((tbuf = alloc(strlen(matches[idx]) + 1)) == NULL) 1990 continue; 1991 (void)strcpy(tbuf, matches[idx]); 1992 1993 if (strtok(tbuf, (const char *)"\t") == NULL 1994 || (fname = strtok(NULL, (const char *)"\t")) == NULL 1995 || (lno = strtok(NULL, (const char *)"\t")) == NULL) 1996 { 1997 vim_free(tbuf); 1998 continue; 1999 } 2000 extra = strtok(NULL, (const char *)"\t"); 2001 2002 lno[strlen(lno)-2] = '\0'; // ignore ;" at the end 2003 2004 // hopefully 'num' (num of matches) will be less than 10^16 2005 newsize = (int)(strlen(csfmt_str) + 16 + strlen(lno)); 2006 if (bufsize < newsize) 2007 { 2008 t_buf = buf; 2009 buf = vim_realloc(buf, newsize); 2010 if (buf == NULL) 2011 { 2012 bufsize = 0; 2013 vim_free(t_buf); 2014 } 2015 else 2016 bufsize = newsize; 2017 } 2018 if (buf != NULL) 2019 { 2020 // csfmt_str = "%4d %6s "; 2021 (void)sprintf(buf, csfmt_str, num, lno); 2022 msg_puts_attr(buf, HL_ATTR(HLF_CM)); 2023 } 2024 msg_outtrans_long_attr((char_u *)cs_pathcomponents(fname), 2025 HL_ATTR(HLF_CM)); 2026 2027 // compute the required space for the context 2028 if (cntxts[idx] != NULL) 2029 context = cntxts[idx]; 2030 else 2031 context = globalcntx; 2032 newsize = (int)(strlen(context) + strlen(cntxformat)); 2033 2034 if (bufsize < newsize) 2035 { 2036 t_buf = buf; 2037 buf = vim_realloc(buf, newsize); 2038 if (buf == NULL) 2039 { 2040 bufsize = 0; 2041 vim_free(t_buf); 2042 } 2043 else 2044 bufsize = newsize; 2045 } 2046 if (buf != NULL) 2047 { 2048 (void)sprintf(buf, cntxformat, context); 2049 2050 // print the context only if it fits on the same line 2051 if (msg_col + (int)strlen(buf) >= (int)Columns) 2052 msg_putchar('\n'); 2053 msg_advance(12); 2054 msg_outtrans_long_attr((char_u *)buf, 0); 2055 msg_putchar('\n'); 2056 } 2057 if (extra != NULL) 2058 { 2059 msg_advance(13); 2060 msg_outtrans_long_attr((char_u *)extra, 0); 2061 } 2062 2063 vim_free(tbuf); // only after printing extra due to strtok use 2064 2065 if (msg_col) 2066 msg_putchar('\n'); 2067 2068 ui_breakcheck(); 2069 if (got_int) 2070 { 2071 got_int = FALSE; // don't print any more matches 2072 break; 2073 } 2074 2075 num++; 2076 } // for all matches 2077 2078 vim_free(buf); 2079 } 2080 2081 2082 /* 2083 * Read a cscope prompt (basically, skip over the ">> "). 2084 */ 2085 static int 2086 cs_read_prompt(int i) 2087 { 2088 int ch; 2089 char *buf = NULL; // buffer for possible error message from cscope 2090 int bufpos = 0; 2091 char *cs_emsg; 2092 int maxlen; 2093 static char *eprompt = "Press the RETURN key to continue:"; 2094 int epromptlen = (int)strlen(eprompt); 2095 int n; 2096 2097 cs_emsg = _("E609: Cscope error: %s"); 2098 // compute maximum allowed len for Cscope error message 2099 maxlen = (int)(IOSIZE - strlen(cs_emsg)); 2100 2101 for (;;) 2102 { 2103 while ((ch = getc(csinfo[i].fr_fp)) != EOF && ch != CSCOPE_PROMPT[0]) 2104 // if there is room and char is printable 2105 if (bufpos < maxlen - 1 && vim_isprintc(ch)) 2106 { 2107 if (buf == NULL) // lazy buffer allocation 2108 buf = alloc(maxlen); 2109 if (buf != NULL) 2110 { 2111 // append character to the message 2112 buf[bufpos++] = ch; 2113 buf[bufpos] = NUL; 2114 if (bufpos >= epromptlen 2115 && strcmp(&buf[bufpos - epromptlen], eprompt) == 0) 2116 { 2117 // remove eprompt from buf 2118 buf[bufpos - epromptlen] = NUL; 2119 2120 // print message to user 2121 (void)semsg(cs_emsg, buf); 2122 2123 // send RETURN to cscope 2124 (void)putc('\n', csinfo[i].to_fp); 2125 (void)fflush(csinfo[i].to_fp); 2126 2127 // clear buf 2128 bufpos = 0; 2129 buf[bufpos] = NUL; 2130 } 2131 } 2132 } 2133 2134 for (n = 0; n < (int)strlen(CSCOPE_PROMPT); ++n) 2135 { 2136 if (n > 0) 2137 ch = getc(csinfo[i].fr_fp); 2138 if (ch == EOF) 2139 { 2140 if (buf != NULL && buf[0] != NUL) 2141 (void)semsg(cs_emsg, buf); 2142 else if (p_csverbose) 2143 cs_reading_emsg(i); // don't have additional information 2144 cs_release_csp(i, TRUE); 2145 vim_free(buf); 2146 return CSCOPE_FAILURE; 2147 } 2148 2149 if (ch != CSCOPE_PROMPT[n]) 2150 { 2151 ch = EOF; 2152 break; 2153 } 2154 } 2155 2156 if (ch == EOF) 2157 continue; // didn't find the prompt 2158 break; // did find the prompt 2159 } 2160 2161 vim_free(buf); 2162 return CSCOPE_SUCCESS; 2163 } 2164 2165 #if defined(UNIX) && defined(SIGALRM) 2166 /* 2167 * Used to catch and ignore SIGALRM below. 2168 */ 2169 static RETSIGTYPE 2170 sig_handler SIGDEFARG(sigarg) 2171 { 2172 // do nothing 2173 SIGRETURN; 2174 } 2175 #endif 2176 2177 /* 2178 * Does the actual free'ing for the cs ptr with an optional flag of whether 2179 * or not to free the filename. Called by cs_kill and cs_reset. 2180 */ 2181 static void 2182 cs_release_csp(int i, int freefnpp) 2183 { 2184 /* 2185 * Trying to exit normally (not sure whether it is fit to UNIX cscope 2186 */ 2187 if (csinfo[i].to_fp != NULL) 2188 { 2189 (void)fputs("q\n", csinfo[i].to_fp); 2190 (void)fflush(csinfo[i].to_fp); 2191 } 2192 #if defined(UNIX) 2193 { 2194 int waitpid_errno; 2195 int pstat; 2196 pid_t pid; 2197 2198 # if defined(HAVE_SIGACTION) 2199 struct sigaction sa, old; 2200 2201 // Use sigaction() to limit the waiting time to two seconds. 2202 sigemptyset(&sa.sa_mask); 2203 sa.sa_handler = sig_handler; 2204 # ifdef SA_NODEFER 2205 sa.sa_flags = SA_NODEFER; 2206 # else 2207 sa.sa_flags = 0; 2208 # endif 2209 sigaction(SIGALRM, &sa, &old); 2210 alarm(2); // 2 sec timeout 2211 2212 // Block until cscope exits or until timer expires 2213 pid = waitpid(csinfo[i].pid, &pstat, 0); 2214 waitpid_errno = errno; 2215 2216 // cancel pending alarm if still there and restore signal 2217 alarm(0); 2218 sigaction(SIGALRM, &old, NULL); 2219 # else 2220 int waited; 2221 2222 // Can't use sigaction(), loop for two seconds. First yield the CPU 2223 // to give cscope a chance to exit quickly. 2224 sleep(0); 2225 for (waited = 0; waited < 40; ++waited) 2226 { 2227 pid = waitpid(csinfo[i].pid, &pstat, WNOHANG); 2228 waitpid_errno = errno; 2229 if (pid != 0) 2230 break; // break unless the process is still running 2231 mch_delay(50L, 0); // sleep 50 ms 2232 } 2233 # endif 2234 /* 2235 * If the cscope process is still running: kill it. 2236 * Safety check: If the PID would be zero here, the entire X session 2237 * would be killed. -1 and 1 are dangerous as well. 2238 */ 2239 if (pid < 0 && csinfo[i].pid > 1) 2240 { 2241 # ifdef ECHILD 2242 int alive = TRUE; 2243 2244 if (waitpid_errno == ECHILD) 2245 { 2246 /* 2247 * When using 'vim -g', vim is forked and cscope process is 2248 * no longer a child process but a sibling. So waitpid() 2249 * fails with errno being ECHILD (No child processes). 2250 * Don't send SIGKILL to cscope immediately but wait 2251 * (polling) for it to exit normally as result of sending 2252 * the "q" command, hence giving it a chance to clean up 2253 * its temporary files. 2254 */ 2255 int waited; 2256 2257 sleep(0); 2258 for (waited = 0; waited < 40; ++waited) 2259 { 2260 // Check whether cscope process is still alive 2261 if (kill(csinfo[i].pid, 0) != 0) 2262 { 2263 alive = FALSE; // cscope process no longer exists 2264 break; 2265 } 2266 mch_delay(50L, 0); // sleep 50 ms 2267 } 2268 } 2269 if (alive) 2270 # endif 2271 { 2272 kill(csinfo[i].pid, SIGKILL); 2273 (void)waitpid(csinfo[i].pid, &pstat, 0); 2274 } 2275 } 2276 } 2277 #else // !UNIX 2278 if (csinfo[i].hProc != NULL) 2279 { 2280 // Give cscope a chance to exit normally 2281 if (WaitForSingleObject(csinfo[i].hProc, 1000) == WAIT_TIMEOUT) 2282 TerminateProcess(csinfo[i].hProc, 0); 2283 CloseHandle(csinfo[i].hProc); 2284 } 2285 #endif 2286 2287 if (csinfo[i].fr_fp != NULL) 2288 (void)fclose(csinfo[i].fr_fp); 2289 if (csinfo[i].to_fp != NULL) 2290 (void)fclose(csinfo[i].to_fp); 2291 2292 if (freefnpp) 2293 { 2294 vim_free(csinfo[i].fname); 2295 vim_free(csinfo[i].ppath); 2296 vim_free(csinfo[i].flags); 2297 } 2298 2299 clear_csinfo(i); 2300 } 2301 2302 2303 /* 2304 * Calls cs_kill on all cscope connections then reinits. 2305 */ 2306 static int 2307 cs_reset(exarg_T *eap UNUSED) 2308 { 2309 char **dblist = NULL, **pplist = NULL, **fllist = NULL; 2310 int i; 2311 char buf[20]; // for sprintf " (#%d)" 2312 2313 if (csinfo_size == 0) 2314 return CSCOPE_SUCCESS; 2315 2316 // malloc our db and ppath list 2317 dblist = ALLOC_MULT(char *, csinfo_size); 2318 pplist = ALLOC_MULT(char *, csinfo_size); 2319 fllist = ALLOC_MULT(char *, csinfo_size); 2320 if (dblist == NULL || pplist == NULL || fllist == NULL) 2321 { 2322 vim_free(dblist); 2323 vim_free(pplist); 2324 vim_free(fllist); 2325 return CSCOPE_FAILURE; 2326 } 2327 2328 for (i = 0; i < csinfo_size; i++) 2329 { 2330 dblist[i] = csinfo[i].fname; 2331 pplist[i] = csinfo[i].ppath; 2332 fllist[i] = csinfo[i].flags; 2333 if (csinfo[i].fname != NULL) 2334 cs_release_csp(i, FALSE); 2335 } 2336 2337 // rebuild the cscope connection list 2338 for (i = 0; i < csinfo_size; i++) 2339 { 2340 if (dblist[i] != NULL) 2341 { 2342 cs_add_common(dblist[i], pplist[i], fllist[i]); 2343 if (p_csverbose) 2344 { 2345 // don't use smsg_attr() because we want to display the 2346 // connection number in the same line as 2347 // "Added cscope database..." 2348 sprintf(buf, " (#%d)", i); 2349 msg_puts_attr(buf, HL_ATTR(HLF_R)); 2350 } 2351 } 2352 vim_free(dblist[i]); 2353 vim_free(pplist[i]); 2354 vim_free(fllist[i]); 2355 } 2356 vim_free(dblist); 2357 vim_free(pplist); 2358 vim_free(fllist); 2359 2360 if (p_csverbose) 2361 msg_attr(_("All cscope databases reset"), HL_ATTR(HLF_R) | MSG_HIST); 2362 return CSCOPE_SUCCESS; 2363 } 2364 2365 2366 /* 2367 * Construct the full pathname to a file found in the cscope database. 2368 * (Prepends ppath, if there is one and if it's not already prepended, 2369 * otherwise just uses the name found.) 2370 * 2371 * We need to prepend the prefix because on some cscope's (e.g., the one that 2372 * ships with Solaris 2.6), the output never has the prefix prepended. 2373 * Contrast this with my development system (Digital Unix), which does. 2374 */ 2375 static char * 2376 cs_resolve_file(int i, char *name) 2377 { 2378 char *fullname; 2379 int len; 2380 char_u *csdir = NULL; 2381 2382 /* 2383 * Ppath is freed when we destroy the cscope connection. 2384 * Fullname is freed after cs_make_vim_style_matches, after it's been 2385 * copied into the tag buffer used by Vim. 2386 */ 2387 len = (int)(strlen(name) + 2); 2388 if (csinfo[i].ppath != NULL) 2389 len += (int)strlen(csinfo[i].ppath); 2390 else if (p_csre && csinfo[i].fname != NULL) 2391 { 2392 // If 'cscoperelative' is set and ppath is not set, use cscope.out 2393 // path in path resolution. 2394 csdir = alloc(MAXPATHL); 2395 if (csdir != NULL) 2396 { 2397 vim_strncpy(csdir, (char_u *)csinfo[i].fname, 2398 gettail((char_u *)csinfo[i].fname) 2399 - (char_u *)csinfo[i].fname); 2400 len += (int)STRLEN(csdir); 2401 } 2402 } 2403 2404 // Note/example: this won't work if the cscope output already starts 2405 // "../.." and the prefix path is also "../..". if something like this 2406 // happens, you are screwed up and need to fix how you're using cscope. 2407 if (csinfo[i].ppath != NULL 2408 && (strncmp(name, csinfo[i].ppath, strlen(csinfo[i].ppath)) != 0) 2409 && (name[0] != '/') 2410 #ifdef MSWIN 2411 && name[0] != '\\' && name[1] != ':' 2412 #endif 2413 ) 2414 { 2415 if ((fullname = alloc(len)) != NULL) 2416 (void)sprintf(fullname, "%s/%s", csinfo[i].ppath, name); 2417 } 2418 else if (csdir != NULL && csinfo[i].fname != NULL && *csdir != NUL) 2419 { 2420 // Check for csdir to be non empty to avoid empty path concatenated to 2421 // cscope output. 2422 fullname = (char *)concat_fnames(csdir, (char_u *)name, TRUE); 2423 } 2424 else 2425 { 2426 fullname = (char *)vim_strsave((char_u *)name); 2427 } 2428 2429 vim_free(csdir); 2430 return fullname; 2431 } 2432 2433 2434 /* 2435 * Show all cscope connections. 2436 */ 2437 static int 2438 cs_show(exarg_T *eap UNUSED) 2439 { 2440 short i; 2441 if (cs_cnt_connections() == 0) 2442 msg_puts(_("no cscope connections\n")); 2443 else 2444 { 2445 msg_puts_attr( 2446 _(" # pid database name prepend path\n"), 2447 HL_ATTR(HLF_T)); 2448 for (i = 0; i < csinfo_size; i++) 2449 { 2450 if (csinfo[i].fname == NULL) 2451 continue; 2452 2453 if (csinfo[i].ppath != NULL) 2454 (void)smsg("%2d %-5ld %-34s %-32s", 2455 i, (long)csinfo[i].pid, csinfo[i].fname, csinfo[i].ppath); 2456 else 2457 (void)smsg("%2d %-5ld %-34s <none>", 2458 i, (long)csinfo[i].pid, csinfo[i].fname); 2459 } 2460 } 2461 2462 wait_return(TRUE); 2463 return CSCOPE_SUCCESS; 2464 } 2465 2466 2467 /* 2468 * Only called when VIM exits to quit any cscope sessions. 2469 */ 2470 void 2471 cs_end(void) 2472 { 2473 int i; 2474 2475 for (i = 0; i < csinfo_size; i++) 2476 cs_release_csp(i, TRUE); 2477 vim_free(csinfo); 2478 csinfo_size = 0; 2479 } 2480 2481 #endif // FEAT_CSCOPE 2482 2483 #if defined(FEAT_EVAL) || defined(PROTO) 2484 2485 /* 2486 * "cscope_connection([{num} , {dbpath} [, {prepend}]])" function 2487 * 2488 * Checks the existence of a cscope connection. 2489 */ 2490 void 2491 f_cscope_connection(typval_T *argvars UNUSED, typval_T *rettv UNUSED) 2492 { 2493 # ifdef FEAT_CSCOPE 2494 int num = 0; 2495 char_u *dbpath = NULL; 2496 char_u *prepend = NULL; 2497 char_u buf[NUMBUFLEN]; 2498 2499 if (in_vim9script() 2500 && (check_for_opt_number_arg(argvars, 0) == FAIL 2501 || (argvars[0].v_type != VAR_UNKNOWN 2502 && (check_for_opt_string_arg(argvars, 1) == FAIL 2503 || (argvars[1].v_type != VAR_UNKNOWN 2504 && check_for_opt_string_arg(argvars, 2) == FAIL))))) 2505 return; 2506 2507 if (argvars[0].v_type != VAR_UNKNOWN 2508 && argvars[1].v_type != VAR_UNKNOWN) 2509 { 2510 num = (int)tv_get_number(&argvars[0]); 2511 dbpath = tv_get_string(&argvars[1]); 2512 if (argvars[2].v_type != VAR_UNKNOWN) 2513 prepend = tv_get_string_buf(&argvars[2], buf); 2514 } 2515 2516 rettv->vval.v_number = cs_connection(num, dbpath, prepend); 2517 # endif 2518 } 2519 2520 #endif // FEAT_EVAL 2521