85 lines
2 KiB
C
85 lines
2 KiB
C
/*******************************************************************************
|
|
|
|
Copyright(C) Jonas 'Sortie' Termansen 2015, 2016.
|
|
|
|
This program is free software: you can redistribute it and/or modify it
|
|
under the terms of the GNU General Public License as published by the Free
|
|
Software Foundation, either version 3 of the License, or (at your option)
|
|
any later version.
|
|
|
|
This program is distributed in the hope that it will be useful, but WITHOUT
|
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
more details.
|
|
|
|
You should have received a copy of the GNU General Public License along with
|
|
this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
fileops.c
|
|
File operation utility functions.
|
|
|
|
*******************************************************************************/
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <libgen.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "fileops.h"
|
|
|
|
int mkdir_p(const char* path, mode_t mode)
|
|
{
|
|
int saved_errno = errno;
|
|
if ( !mkdir(path, mode) )
|
|
return 0;
|
|
if ( errno == ENOENT )
|
|
{
|
|
char* prev = strdup(path);
|
|
if ( !prev )
|
|
return -1;
|
|
int status = mkdir_p(dirname(prev), mode | 0500);
|
|
free(prev);
|
|
if ( status < 0 )
|
|
return -1;
|
|
errno = saved_errno;
|
|
if ( !mkdir(path, mode) )
|
|
return 0;
|
|
}
|
|
if ( errno == EEXIST )
|
|
return errno = saved_errno, 0;
|
|
return -1;
|
|
}
|
|
|
|
int access_or_die(const char* path, int mode)
|
|
{
|
|
if ( access(path, mode) < 0 )
|
|
{
|
|
if ( errno == EACCES ||
|
|
errno == ENOENT ||
|
|
errno == ELOOP ||
|
|
errno == ENAMETOOLONG ||
|
|
errno == ENOTDIR )
|
|
return -1;
|
|
warn("%s", path);
|
|
_exit(2);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void mkdir_or_chmod_or_die(const char* path, mode_t mode)
|
|
{
|
|
if ( mkdir(path, mode) == 0 )
|
|
return;
|
|
if ( errno == EEXIST )
|
|
{
|
|
if ( chmod(path, mode) == 0 )
|
|
return;
|
|
err(2, "chmod: %s", path);
|
|
}
|
|
err(2, "mkdir: %s", path);
|
|
}
|