101 lines
3.0 KiB
C
101 lines
3.0 KiB
C
/*
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* Copyright (c) 1983, 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* The following is a modified function from NetBSD's src/bin/mkdir/mkdir.c
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/stat.h>
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#include "xbps_api_impl.h"
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int
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xbps_mkpath(const char *path, mode_t mode)
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{
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struct stat sb;
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char *ppath, *slash;
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int done = 0;
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mode_t dir_mode;
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if ((ppath = strdup(path)) == NULL)
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return -1;
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slash = ppath;
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/*
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* The default file mode is a=rwx (0777) with selected permissions
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* removed in accordance with the file mode creation mask. For
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* intermediate path name components, the mode is the default modified
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* by u+wx so that the subdirectories can always be created.
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*/
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if (mode == 0)
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mode = (S_IRWXU | S_IRWXG | S_IRWXO) & ~umask(0);
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dir_mode = mode | S_IRUSR | S_IXUSR | S_IROTH | S_IXOTH;
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for (;;) {
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slash += strspn(slash, "/");
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slash += strcspn(slash, "/");
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done = (*slash == '\0');
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*slash = '\0';
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if (mkdir(ppath, done ? mode : dir_mode) == -1) {
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/*
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* Can't create; path exists or no perms.
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* stat() path to determine what's there now.
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*/
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int sverrno;
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sverrno = errno;
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if (stat(ppath, &sb) < 0) {
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/* Not there; use mkdir()s error */
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errno = sverrno;
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free(ppath);
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return -1;
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}
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if (!S_ISDIR(sb.st_mode)) {
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/* Is there, but isn't a directory */
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errno = ENOTDIR;
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free(ppath);
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return -1;
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}
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}
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if (done)
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break;
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*slash = '/';
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}
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free(ppath);
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return 0;
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}
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