forked from bonsai/coreutils
64 lines
2.3 KiB
C
64 lines
2.3 KiB
C
/*
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* Copyright (c) 2023 DTB <trinity@trinity.moe>
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*
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* This program is free software: you can redistribute it and/or modify it under
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* the terms of the GNU Affero General Public License as published by the Free
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* Software Foundation, either version 3 of the License, or (at your option) any
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* later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see https://www.gnu.org/licenses/.
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*/
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#include "libfileis.h"
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#include <unistd.h> /* access(3), F_OK, R_OK, W_OK, X_OK */
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int f_executable(char *path){ return access(path, X_OK) == 0; } /* test -x */
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int f_exists(char *path){ return access(path, F_OK) == 0; } /* test -e */
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int f_readable(char *path){ return access(path, R_OK) == 0; } /* test -r */
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int f_writeable(char *path){ return access(path, W_OK) == 0; } /* test -w */
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#include <sys/stat.h> /* lstat(3), struct stat, S_ISBLK, S_ISCHR, S_ISDIR,
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* S_ISFIFO, S_ISGID, S_ISREG, S_ISLNK, S_ISSOCK,
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* S_ISUID, S_ISVTX */
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static struct stat buf;
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int f_blockspecial(char *path){ /* test -b */
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return lstat(path, &buf) != -1 && S_ISBLK(buf.st_mode);
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}
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int f_charspecial(char *path){ /* test -c */
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return lstat(path, &buf) != -1 && S_ISCHR(buf.st_mode);
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}
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int f_directory(char *path){ /* test -d */
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return lstat(path, &buf) != -1 && S_ISDIR(buf.st_mode);
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}
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int f_fifospecial(char *path){ /* test -p */
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return lstat(path, &buf) != -1 && S_ISFIFO(buf.st_mode);
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}
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int f_gid(char *path){ /* test -g */
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return lstat(path, &buf) != -1 && (buf.st_mode & S_ISGID);
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}
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int f_regular(char *path){ /* test -f */
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return lstat(path, &buf) != -1 && S_ISREG(buf.st_mode);
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}
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int f_socket(char *path){ /* test -S */
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return lstat(path, &buf) != -1 && S_ISSOCK(buf.st_mode);
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}
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int f_sticky(char *path){ /* test -k */
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return lstat(path, &buf) != -1 && (buf.st_mode & S_ISVTX);
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}
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int f_symlink(char *path){ /* test -h; test -L */
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return lstat(path, &buf) != -1 && S_ISLNK(buf.st_mode);
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}
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int f_uid(char *path){ /* test -u */
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return lstat(path, &buf) != -1 && (buf.st_mode & S_ISUID);
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}
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