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