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Diffstat (limited to 'src/db.c')
| -rw-r--r-- | src/db.c | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/src/db.c b/src/db.c deleted file mode 100644 index c547013..0000000 --- a/src/db.c +++ /dev/null @@ -1,198 +0,0 @@ -/*- - * Copyright (c) 2026, Mr. Goblin - * - * SPDX-License-Identifier: BSD-2-Clause - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials provided - * with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT - * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND - * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - */ - -#include <sys/types.h> -#include <sys/stat.h> -#include <dirent.h> -#include <fcntl.h> -#include <unistd.h> -#include <wait.h> -#include <string.h> -#include <limits.h> -#include <errno.h> -#include "db.h" - -#ifndef PATH_MAX -# define PATH_MAX 4096 -#endif - -#ifndef NAME_MAX -# define NAME_MAX 255 -#endif - -#define DIR_NAME_BUF_SIZE (NAME_MAX+1) - - -static const char * -find_chr_or_zero(const char *s, char ch) -{ - while (*s && *s != ch) - s++; - return s; -} - -static const char * -find_chr_or_zero_n(const char *s, char ch, int n) -{ - int i = 0; - while (i < n && *s && *s != ch) { - s++; - i++; - } - return s; -} - -static struct db_value_int -does_dir_exist(const char *path) -{ - struct db_value_int res = {0}; - struct stat st = {0}; - int code; - res.code = dbe_ok; - res.data = 1; - code = stat(path, &st); - if (0 != code) { - if (ENOENT == errno) - res.data = 0; - else if (EACCES == errno) - res.code = dbe_access; - else - res.code = dbe_unknown; - } else { - res.data = S_IFDIR == (st.st_mode & S_IFMT); - } - return res; -} - -static enum db_error -make_dir_ifne(const char *path, int rights) -{ - struct db_value_int val = {0}; - int code; - val = does_dir_exist(path); - if (dbe_ok != val.code) - return val.code; - else if (val.data) - return dbe_ok; - code = mkdir(path, rights); - if (code != 0) { - if (EACCES == errno) - return dbe_access; - else if (EEXIST == errno) - return dbe_notdir; - } - return dbe_ok; -} - -static enum db_error -do_make_dir_path(const char *path, int rights) -{ - char buf[DIR_NAME_BUF_SIZE] = {0}; - const char *p = find_chr_or_zero(path, '/'); - unsigned sz = p - path + 1, code; - if (sizeof(buf) < sz) - return dbe_inval; - strncpy(buf, path, sz); - buf[sz-1] = '\0'; - code = make_dir_ifne(buf, rights); - if (dbe_ok != code) - return code; - if (*p) { - code = chdir(buf); - if (0 != code) - return dbe_access; - code = do_make_dir_path(p+1, rights); - if (dbe_ok != code) - return code; - code = chdir(".."); - if (0 != code) - return dbe_access; - } - return dbe_ok; -} - -/* mkdir -p */ -enum db_error -make_dir_path(const char *path, int rights) -{ - return do_make_dir_path(path, rights); -} - -/* ==================================================================== */ - -#ifdef BTASKTD_DB_TEST - -#include <stdio.h> - -#define TEST_CODE(code) \ - do { \ - const char *s = NULL; \ - switch (code) { \ - case dbe_ok: s = "NO_ERROR"; break; \ - case dbe_notdir: s = "NOT_DIR"; break; \ - case dbe_inval: s = "INV_INPUT"; break; \ - case dbe_access: s = "ACCESS"; break; \ - default: s = "UNKNOWN"; \ - } \ - fprintf(stderr, "%s\n", s); \ - } while (0) - - -int -main(void) -{ - int i, pid; - const char *path = "test_db/super_test/mtest"; - for (i = 0; i < 10; i++) - TEST_CODE(make_dir_path(path, 0777)); - pid = fork(); - if (-1 == pid) { - fprintf(stderr, "can't fork\n"); - return 1; - } else if (0 == pid) { - execlp("ls", "ls", "-laR", NULL); - _exit(128); - } else { - wait(NULL); - } - pid = fork(); - if (-1 == pid) { - fprintf(stderr, "can't fork\n"); - return 1; - } else if (0 == pid) { - execlp("rm", "rm", "-rf", "test_db", NULL); - _exit(127); - } else { - wait(NULL); - } - return 0; -} - -#endif |