deef8a6c1a
Not a huge performance loss anyway. And the directory may be deleted between calls so. However the directory can still be missing as soon as the mkdir() call has ended. Doing it this way just means that if the directory is removed during execution of the program, it will be created again and not make the rest of the programs lifetime live without it.
55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
/* env.c
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*
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* Copyright (C) 2011 Henrik Hautakoski <henrik@fiktivkod.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include "error.h"
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#include "buffer.h"
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#include "env.h"
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static char *base = NULL;
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static void get_base() {
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struct buffer buf = BUFFER_INIT;
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char *ptr = getenv("HOME");
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if (!ptr)
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ptr = ".";
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buffer_append_str(&buf, ptr);
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buffer_append_str(&buf, "/.dlight");
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base = buffer_cstr_release(&buf);
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}
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const char* env_get_dir() {
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if (!base)
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get_base();
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if (mkdir(base, 0700) < 0 && errno != EEXIST) {
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fatal("Unable to create '%s': %s\n",
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base, strerror(errno));
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}
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return base;
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}
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