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Annotation of embedaddon/pimd/libite/makepath.c, revision 1.1

1.1     ! misho       1: /* mkpath() -- Create all components leading up to a given directory
        !             2:  *
        !             3:  * Copyright (c) 2013  Joachim Nilsson <troglobit@gmail.com>
        !             4:  *
        !             5:  * Permission to use, copy, modify, and/or distribute this software for any
        !             6:  * purpose with or without fee is hereby granted, provided that the above
        !             7:  * copyright notice and this permission notice appear in all copies.
        !             8:  *
        !             9:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !            10:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            11:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            12:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            13:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
        !            14:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
        !            15:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            16:  */
        !            17: 
        !            18: #include <errno.h>
        !            19: #include <libgen.h>
        !            20: #include <limits.h>
        !            21: #include <stdlib.h>
        !            22: #include <string.h>
        !            23: #include <sys/stat.h>
        !            24: #include <sys/types.h>
        !            25: 
        !            26: int mkpath(char *dir, mode_t mode)
        !            27: {
        !            28:        if (!dir) {
        !            29:                errno = EINVAL;
        !            30:                return 1;
        !            31:        }
        !            32: 
        !            33:        if (strlen(dir) == 1 && dir[0] == '/')
        !            34:                return 0;
        !            35: 
        !            36:        mkpath(dirname(strdupa(dir)), mode);
        !            37: 
        !            38:        return mkdir(dir, mode);
        !            39: }
        !            40: 
        !            41: /**
        !            42:  * makepath - Create all components of the specified directory.
        !            43:  * @dir: Directory to create.
        !            44:  *
        !            45:  * Returns:
        !            46:  * POSIX OK (0) on success, otherwise -1 and errno set appropriately.
        !            47:  * This function returns EINVAL on bad argument, or ENOMEM when it
        !            48:  * fails allocating temporary memory.  For other error codes see the
        !            49:  * mkdir() syscall description.
        !            50:  */
        !            51: int makepath(char *dir)
        !            52: {
        !            53:        return mkpath(dir, 0777);
        !            54: }
        !            55: 
        !            56: /********************************* UNIT TESTS ************************************/
        !            57: #ifdef UNITTEST
        !            58: #include "lite.h"
        !            59: 
        !            60: int checkpath(char *dir)
        !            61: {
        !            62:        char tmp[256];
        !            63:        struct stat sb;
        !            64: 
        !            65:        snprintf(tmp, sizeof(tmp), "ls -ld %s", dir);
        !            66:        if (system(tmp))
        !            67:                perror("system");
        !            68: 
        !            69:        if (!stat(dir, &sb) && S_ISDIR(sb.st_mode))
        !            70:                return 0;
        !            71: 
        !            72:        errno = ENOTDIR;
        !            73:        return 1;
        !            74: }
        !            75: 
        !            76: int test_makepath(char *dir)
        !            77: {
        !            78:        int ret = makepath(dir);
        !            79: 
        !            80:        if (!ret)
        !            81:                ret = checkpath(dir);
        !            82:        if (ret)
        !            83:                perror("Failed");
        !            84: 
        !            85:        return ret;
        !            86: }
        !            87: 
        !            88: int main(void)
        !            89: {
        !            90:        int i, ret = 0;
        !            91:        char *list[] = {
        !            92:                "/tmp/tok/",
        !            93:                "/tmp/tok2",
        !            94:                "/tmp/ab",
        !            95:                "/tmp/b",
        !            96:                "/tmp/a/",
        !            97:                "/tmp/a/b",
        !            98:                "/tmp/a/c/",
        !            99:                NULL
        !           100:        };
        !           101: 
        !           102:        for (i = 0; list[i]; i++)
        !           103:                rmdir(list[i]);
        !           104: 
        !           105:        printf("Testing makepath() ...\n");
        !           106:        for (i = 0; list[i] && !ret; i++)
        !           107:                ret = test_makepath(list[i]);
        !           108: 
        !           109:        printf("\nCleaning up ...\n");
        !           110:        for (i = 0; list[i]; i++)
        !           111:                rmdir(list[i]);
        !           112: 
        !           113:        return ret;
        !           114: }
        !           115: #endif  /* UNITTEST */
        !           116: 
        !           117: /**
        !           118:  * Local Variables:
        !           119:  *  compile-command: "make V=1 -f makepath.mk"
        !           120:  *  version-control: t
        !           121:  *  indent-tabs-mode: t
        !           122:  *  c-file-style: "linux"
        !           123:  * End:
        !           124:  */