Lines Matching defs:fts
28 * fts implementation unwound from the kpv ftwalk() of 1988-10-30
95 #include <fts.h>
177 node(FTS* fts, FTSENT* parent, register char* name, register size_t namelen)
182 if (fts->free && namelen < MINNAME)
184 f = fts->free;
185 fts->free = f->fts_link;
192 fts->fts_errno = errno;
193 fts->state = FTS_error;
196 f->fts = fts;
460 popdirs(FTS* fts)
471 if (!(f = fts->curdir) || f->fts_level < 0)
477 while (fts->nd > 0)
479 for (s = buf; s < e && fts->nd > 0; fts->nd--)
481 if (fts->pwd)
484 verify |= fts->pwd->symlink;
486 fts->pwd = fts->pwd->pwd;
504 info(FTS* fts, register FTSENT* f, const char* path, struct stat* sp, int flags)
524 if ((flags & FTS_NOSTAT) && !fts->fs3d)
578 * to give caller a chance to set fts->handle
582 toplist(FTS* fts, register char* const* pathnames)
593 if (fts->flags & FTS_NOSEEDOTDIR)
594 fts->flags &= ~FTS_SEEDOTDIR;
595 physical = (fts->flags & FTS_PHYSICAL);
596 metaphysical = (fts->flags & (FTS_META|FTS_PHYSICAL)) == (FTS_META|FTS_PHYSICAL);
604 if (!(f = node(fts, fts->parent, path, strlen(path))))
608 f->fts_namelen = (fts->flags & FTS_SEEDOTDIR) ? strlen(path) : (pathcanon(path, 0) - path);
612 fts->flags |= FTS_SEEDOTDIR;
616 if (fts->flags & FTS_NOSEEDOTDIR)
618 fts->flags &= ~FTS_SEEDOTDIR;
632 fts->flags |= FTS_SEEDOTDIR;
646 info(fts, f, path, f->fts_statp, fts->flags);
657 info(fts, f, NiL, f->fts_statp, 0);
672 * order fts->todo if fts->comparf != 0
676 order(FTS* fts)
684 for (f = fts->todo; f; f = f->fts_link)
685 root = search(f, root, fts->comparf, 1);
687 fts->todo = top;
692 * note that free() is not used because we may need to chdir(fts->home)
697 resize(register FTS* fts, size_t inc)
707 n_old = fts->homesize;
708 fts->homesize = ((fts->homesize + inc + 4) / PATH_MAX + 1) * PATH_MAX;
709 if (!(newp = newof(0, char, fts->homesize, 0)))
711 fts->fts_errno = errno;
712 fts->state = FTS_error;
715 old = fts->home;
716 fts->home = newp;
718 if (fts->endbuf)
719 fts->endbuf = newp + fts->homesize - 4;
720 if (fts->path)
721 fts->path = newp + (fts->path - old);
722 if (fts->base)
723 fts->base = newp + (fts->base - old);
729 * open a new fts stream on pathnames
735 register FTS* fts;
737 if (!(fts = newof(0, FTS, 1, sizeof(FTSENT))))
739 fts->flags = flags;
740 fts->cd = (flags & FTS_NOCHDIR) ? 1 : -1;
741 fts->comparf = comparf;
742 fts->fs3d = fs3d(FS3D_TEST);
748 fts->homesize = 2 * PATH_MAX;
751 if (!(fts->home = newof(fts->home, char, fts->homesize, 0)))
753 free(fts);
756 if (fts->cd > 0 || getcwd(fts->home, fts->homesize))
759 fts->homesize += PATH_MAX;
761 fts->cd = 1;
763 fts->endbuf = fts->home + fts->homesize - 4;
769 fts->parent = (FTSENT*)(fts + 1);
770 fts->parent->fts_info = FTS_D;
771 memcpy(fts->parent->fts_accpath = fts->parent->fts_path = fts->parent->fts_name = fts->parent->name, ".", 2);
772 fts->parent->fts_level = -1;
774 fts->parent->_fts_level = (short)fts->parent->fts_level;
776 fts->parent->fts_statp = &fts->parent->statb;
777 fts->parent->must = 2;
778 fts->parent->type = DT_UNKNOWN;
779 fts->path = fts->home + strlen(fts->home) + 1;
791 fts->todo = toplist(fts, v);
794 fts->todo = toplist(fts, pathnames);
795 if (!fts->todo || fts->todo->fts_info == FTS_NS && !fts->todo->fts_link)
797 fts_close(fts);
800 return fts;
808 fts_read(register FTS* fts)
822 switch (fts->state)
827 f = fts->todo;
835 drop(fts, f);
840 fts->todo = f->fts_link;
841 drop(fts, f);
842 f = fts->todo;
854 if (!fts->state && fts->comparf)
855 order(fts);
856 if (!(f = fts->todo))
866 fts->root = fts->top = fts->bot = 0;
874 fts->parent->fts_number = f->fts_number;
875 fts->parent->fts_pointer = f->fts_pointer;
876 fts->parent->fts_statp = f->fts_statp;
877 fts->parent->statb = *f->fts_statp;
878 f->fts_parent = fts->parent;
879 fts->diroot = 0;
880 if (fts->cd == 0)
881 pathcd(fts->home, NiL);
882 else if (fts->cd < 0)
883 fts->cd = 0;
884 fts->pwd = f->fts_parent;
885 fts->curdir = fts->cd ? 0 : f->fts_parent;
886 *(fts->base = fts->path) = 0;
893 if (fts->cd < 0)
895 fts->cd = setdir(fts->home, fts->path);
896 fts->pwd = f->fts_parent;
897 fts->curdir = fts->cd ? 0 : f->fts_parent;
904 if ((fts->baselen = f->fts_namelen) >= (fts->endbuf - fts->base) && resize(fts, fts->baselen))
906 memcpy(fts->base, f->name, fts->baselen + 1);
907 fts->name = fts->cd ? fts->path : fts->base;
918 if ((fts->diroot = search(f, fts->diroot, statcmp, 0)) != f || f->fts_level > 0 && (t = f) && statcmp(&t, &f->fts_parent) == 0)
921 f->fts_cycle = fts->diroot;
923 else if (!(fts->flags & FTS_TOP) && (!(fts->flags & FTS_XDEV) || f->statb.st_dev == f->fts_parent->statb.st_dev))
929 if (fts->base[fts->baselen - 1] != '/')
930 memcpy(fts->base + fts->baselen, "/.", 3);
931 if (!(fts->dir = opendir(fts->name)))
933 fts->base[fts->baselen] = 0;
934 if (!fts->dir && !(fts->dir = opendir(fts->name)))
939 if (f->nd || !(fts->flags & FTS_NOPREORDER))
941 fts->current = f;
942 fts->link = f->fts_link;
944 f->fts_path = PATH(fts, fts->path, f->fts_level);
945 f->fts_pathlen = (fts->base - f->fts_path) + fts->baselen;
946 f->fts_accpath = ACCESS(fts, f);
947 fts->state = FTS_preorder_return;
958 if (!fts->dir || f->nd || f->status == FTS_SKIP)
960 if (fts->dir)
962 closedir(fts->dir);
963 fts->dir = 0;
965 fts->state = FTS_popstack;
973 if (fts->cd == 0)
975 if ((fts->cd = chdir(fts->name)) < 0)
976 pathcd(fts->home, NiL);
977 else if (fts->pwd != f)
979 f->pwd = fts->pwd;
980 fts->pwd = f;
982 fts->curdir = fts->cd < 0 ? 0 : f;
984 fts->nostat = fts->children > 1 || f->fts_info == FTS_DNX;
985 fts->cpname = fts->cd && !fts->nostat || !fts->children && !fts->comparf;
986 fts->dotdot = 0;
987 fts->endbase = fts->base + fts->baselen;
988 if (fts->endbase[-1] != '/')
989 *fts->endbase++ = '/';
990 fts->current = f;
995 while (d = readdir(fts->dir))
1002 fts->current->nlink--;
1003 if (!(fts->flags & FTS_SEEDOT))
1009 fts->current->nlink--;
1010 if (fts->current->must == 1)
1011 fts->current->must = 0;
1012 if (!(fts->flags & FTS_SEEDOT))
1027 if (!(f = node(fts, fts->current, s, i)))
1035 if (i >= fts->endbuf - fts->endbase)
1037 if (resize(fts, i))
1039 fts->endbase = fts->base + fts->baselen;
1040 if (fts->endbase[-1] != '/')
1041 fts->endbase++;
1043 if (fts->cpname)
1045 memcpy(fts->endbase, s, i + 1);
1046 if (fts->cd)
1047 s = fts->path;
1056 f->fts_statp = fts->current->fts_statp;
1060 fts->dotdot = f;
1061 if (fts->current->fts_parent->fts_level < 0)
1063 f->fts_statp = &fts->current->fts_parent->statb;
1064 info(fts, f, s, f->fts_statp, 0);
1067 f->fts_statp = fts->current->fts_parent->fts_statp;
1071 else if ((fts->nostat || SKIP(fts, f)) && (f->fts_info = FTS_NSOK) || info(fts, f, s, &f->statb, fts->flags))
1073 if (fts->comparf)
1074 fts->root = search(f, fts->root, fts->comparf, 1);
1075 else if (fts->children || f->fts_info == FTS_D || f->fts_info == FTS_SL)
1077 if (fts->top)
1078 fts->bot = fts->bot->fts_link = f;
1080 fts->top = fts->bot = f;
1088 f->fts_path = PATH(fts, fts->path, 1);
1089 f->fts_pathlen = fts->endbase - f->fts_path + f->fts_namelen;
1090 f->fts_accpath = ACCESS(fts, f);
1091 fts->previous = fts->current;
1092 fts->current = f;
1093 fts->state = FTS_terminal;
1102 closedir(fts->dir);
1103 fts->dir = 0;
1104 if (fts->root)
1105 getlist(&fts->top, &fts->bot, fts->root);
1106 if (fts->children)
1112 fts->base[fts->baselen] = 0;
1113 if (fts->cd <= 0)
1115 f = fts->current->fts_parent;
1116 if (fts->cd < 0
1117 || f != fts->curdir
1118 || !fts->dotdot
1119 || !SAME(f->fts_statp, fts->dotdot->fts_statp)
1120 || fts->pwd && fts->pwd->symlink
1121 || (fts->cd = chdir("..")) < 0
1124 || !SAME(&sb, fts->dotdot->fts_statp)
1127 fts->cd = setpdir(fts->home, fts->path, fts->base);
1128 if (fts->pwd)
1129 fts->pwd = fts->pwd->pwd;
1130 fts->curdir = fts->cd ? 0 : f;
1132 f = fts->current;
1133 fts->link = f->fts_link;
1134 f->fts_link = fts->top;
1135 f->fts_path = PATH(fts, fts->path, f->fts_level);
1136 f->fts_pathlen = (fts->base - f->fts_path) + f->fts_namelen;
1137 f->fts_accpath = ACCESS(fts, f);
1138 fts->state = FTS_children_return;
1145 fts->base[fts->baselen] = 0;
1146 if (fts->top)
1148 fts->bot->fts_link = fts->todo;
1149 fts->todo = fts->top;
1150 fts->top = 0;
1160 fts->nd = 0;
1161 f = fts->current;
1166 while (fts->todo && f == fts->todo)
1175 if (f != fts->diroot)
1176 fts->diroot = search(f, fts->diroot, statcmp, 0);
1177 fts->diroot = deleteroot(fts->diroot);
1178 if (f == fts->curdir)
1180 fts->nd++;
1181 fts->curdir = t;
1188 if (!(fts->flags & FTS_NOPOSTORDER) &&
1196 if (fts->nd > 0)
1197 fts->cd = popdirs(fts);
1198 if (fts->cd < 0)
1199 fts->cd = setpdir(fts->home, fts->path, fts->base);
1200 fts->curdir = fts->cd ? 0 : t;
1202 f->fts_path = PATH(fts, fts->path, f->fts_level);
1203 f->fts_pathlen = (fts->base - f->fts_path) + f->fts_namelen;
1204 f->fts_accpath = ACCESS(fts, f);
1211 fts->link = f->fts_link;
1213 fts->state = FTS_popstack_return;
1222 if (fts->base > fts->path + t->fts_namelen)
1223 fts->base--;
1224 *fts->base = 0;
1225 fts->base -= t->fts_namelen;
1238 fts->todo = fts->todo->fts_link;
1239 drop(fts, f);
1248 if (fts->nd > 0 && popdirs(fts) < 0)
1250 pathcd(fts->home, NiL);
1251 fts->curdir = 0;
1252 fts->cd = -1;
1254 if (fts->todo)
1256 if (*fts->base)
1257 fts->base += f->fts_namelen;
1258 if (*(fts->base - 1) != '/')
1259 *fts->base++ = '/';
1260 *fts->base = 0;
1261 f = fts->todo;
1262 fts->state = FTS_todo;
1269 f = fts->current;
1270 f->fts_link = fts->link;
1278 if (!n && fts->cd == 0)
1280 if ((fts->cd = chdir(fts->base)) < 0)
1281 pathcd(fts->home, NiL);
1282 else if (fts->pwd != f)
1284 f->pwd = fts->pwd;
1285 fts->pwd = f;
1287 fts->curdir = fts->cd ? 0 : f;
1294 if (fts->base[fts->baselen - 1] != '/')
1295 fts->base[fts->baselen] = '/';
1296 for (fts->bot = 0, f = fts->top; f; )
1299 if (fts->bot)
1300 fts->bot->fts_link = f->fts_link;
1302 fts->top = f->fts_link;
1303 drop(fts, f);
1304 f = fts->bot ? fts->bot->fts_link : fts->top;
1308 if (fts->children > 1 && i)
1311 info(fts, f, NiL, f->fts_statp, 0);
1312 else if (f->fts_info == FTS_NSOK && !SKIP(fts, f))
1315 if (fts->cd)
1317 memcpy(fts->endbase, s, f->fts_namelen + 1);
1318 s = fts->path;
1320 info(fts, f, s, f->fts_statp, fts->flags);
1323 fts->bot = f;
1326 fts->children = 0;
1327 fts->state = FTS_children_resume;
1332 f = fts->todo;
1333 f->fts_link = fts->link;
1335 fts->state = FTS_popstack_resume;
1340 f = fts->current;
1341 f->fts_link = fts->link;
1352 info(fts, f, f->fts_accpath, f->fts_statp, 0);
1355 fts->state = FTS_preorder;
1365 if (fts->cd == 0 && f->fts_level == 0 && f->nd)
1366 fts->cd = -1;
1367 fts->state = FTS_preorder_resume;
1372 f = fts->current;
1378 info(fts, f, f->fts_accpath, f->fts_statp, 0);
1381 if (!(f->fts_link = fts->top))
1382 fts->bot = f;
1383 fts->top = f;
1384 fts->current = fts->previous;
1385 fts->state = FTS_readdir;
1391 drop(fts, fts->current);
1392 fts->current = f;
1393 fts->state = FTS_readdir;
1402 fts->fts_errno = EINVAL;
1403 fts->state = FTS_error;
1412 if ((n = (*p->notifyf)(fts, f, p->context)) > 0)
1416 fts->fts_errno = EINVAL;
1417 fts->state = FTS_error;
1428 fts_set(register FTS* fts, register FTSENT* f, int status)
1430 if (fts || !f || f->fts->current != f)
1458 fts_children(register FTS* fts, int flags)
1462 switch (fts->state)
1467 if (fts->comparf)
1468 order(fts);
1469 fts->state = FTS_top_return;
1470 return fts->todo;
1474 fts->children = ((flags | fts->flags) & FTS_NOSTAT) ? 2 : 1;
1475 if (f = fts_read(fts))
1518 * close an open fts stream
1522 fts_close(register FTS* fts)
1527 if (fts->dir)
1528 closedir(fts->dir);
1529 if (fts->cd == 0)
1530 pathcd(fts->home, NiL);
1531 free(fts->home);
1532 if (fts->state == FTS_children_return)
1533 fts->current->fts_link = fts->link;
1534 if (fts->top)
1536 fts->bot->fts_link = fts->todo;
1537 fts->todo = fts->top;
1539 for (f = fts->todo; f; f = x)
1544 for (f = fts->free; f; f = x)
1549 free(fts);