54 lines
1.9 KiB
C
54 lines
1.9 KiB
C
/*
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* C_lib Copyright (C) 2021 Wael Karram.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU 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 header. */
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#include "file_utils.h"
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/* This function checks if a file or directory exists at the given path. */
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static inline int check_file_exists(const char *path) {
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return (path && access(path, F_OK) == 0);
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}
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/* This function checks if the path points to a file or directory, assumes existence! */
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/* Returns 1 on file, 0 on directory, 2 for other; note that -1 indicates internal error! */
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static inline int check_if_file(const char *path) {
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/* Sanity check. */
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assert(check_file_exists(path));
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/* Check type. */
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struct stat path_stat;
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/* Check for failure. */
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if (stat(path, &path_stat) == PASS_FAIL_FILE_UTILS_H)
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return PASS_FAIL_FILE_UTILS_H;
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/* Return the result. */
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if (S_ISREG(path_stat.st_mode))
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return TRUE_FILE_UTILS_H;
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else if (S_ISDIR(path_stat.st_mode))
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return FALSE_FILE_UTILS_H;
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else
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return OTHER_FILE_UTILS_H;
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}
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/* This function checks if the path exists and points to a directory. */
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static inline int check_if_directory_exists(const char *path) {
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return check_file_exists(path) && (check_if_file(path) == FALSE_FILE_UTILS_H);
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}
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/* This function checks if the path exists and points to a file. */
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static inline int check_if_directory_exists(const char *path) {
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return check_file_exists(path) && (check_if_file(path) == TRUE_FILE_UTILS_H);
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}
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