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/*
$Header: /cvs/src/chrony/mkdirpp.c,v 1.10 2002/11/03 22:49:17 richard Exp $
=======================================================================
chronyd/chronyc - Programs for keeping computer clocks accurate.
**********************************************************************
* Copyright (C) Richard P. Curnow 1997-2002
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
**********************************************************************
=======================================================================
A function for creating a directory and any parent directories that
don't exist.
*/
#include "sysincl.h"
#include "mkdirpp.h"
static int
do_dir(char *p)
{
int status;
struct stat buf;
#if defined(TEST)
fprintf(stderr, "do_dir(%s)\n", p);
#endif
/* See if directory exists */
status = stat(p, &buf);
if (status < 0) {
if (errno == ENOENT) {
/* Try to create directory */
status = mkdir(p, 0755);
return status;
} else {
return status;
}
}
if (!S_ISDIR(buf.st_mode)) {
return -1;
}
return 0;
}
/* ================================================== */
/* Return 0 if the directory couldn't be created, 1 if it could (or
already existed) */
int
mkdir_and_parents(const char *path)
{
char *p;
int len;
int i, j, k, last;
len = strlen(path);
p = (char *) malloc(1 + len);
i = k = 0;
while (1) {
p[i++] = path[k++];
if (path[k] == '/' || !path[k]) {
p[i] = 0;
if (do_dir(p) < 0) {
return 0;
}
if (!path[k]) {
/* End of the string */
break;
}
/* check whether its a trailing / or group of / */
last = 1;
j = k+1;
while (path[j]) {
if (path[j] != '/') {
k = j - 1; /* Pick up a / into p[] thru the assignment at the top of the loop */
last = 0;
break;
}
j++;
}
if (last) {
break;
}
}
if (!path[k]) break;
}
free(p);
return 1;
}
/* ================================================== */
#if defined(TEST)
int main(int argc, char **argv) {
if (argc > 1) {
/* Invert sense of result */
return mkdir_and_parents(argv[1]) ? 0 : 1;
} else {
return 1;
}
}
#endif
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