134 lines
2.8 KiB
C
134 lines
2.8 KiB
C
/*
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chronyd/chronyc - Programs for keeping computer clocks accurate.
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**********************************************************************
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* Copyright (C) Richard P. Curnow 1997-2002
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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 version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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**********************************************************************
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=======================================================================
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A function for creating a directory and any parent directories that
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don't exist.
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*/
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#include "config.h"
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#include "sysincl.h"
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#include "mkdirpp.h"
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static int
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do_dir(char *p)
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{
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int status;
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struct stat buf;
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#if defined(TEST)
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fprintf(stderr, "do_dir(%s)\n", p);
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#endif
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/* See if directory exists */
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status = stat(p, &buf);
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if (status < 0) {
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if (errno == ENOENT) {
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/* Try to create directory */
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status = mkdir(p, 0755);
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return status;
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} else {
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return status;
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}
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}
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if (!S_ISDIR(buf.st_mode)) {
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return -1;
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}
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return 0;
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}
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/* ================================================== */
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/* Return 0 if the directory couldn't be created, 1 if it could (or
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already existed) */
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int
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mkdir_and_parents(const char *path)
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{
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char *p;
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int len;
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int i, j, k, last;
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len = strlen(path);
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p = (char *) malloc(1 + len);
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i = k = 0;
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while (1) {
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p[i++] = path[k++];
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if (path[k] == '/' || !path[k]) {
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p[i] = 0;
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if (do_dir(p) < 0) {
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free(p);
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return 0;
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}
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if (!path[k]) {
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/* End of the string */
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break;
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}
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/* check whether its a trailing / or group of / */
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last = 1;
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j = k+1;
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while (path[j]) {
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if (path[j] != '/') {
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k = j - 1; /* Pick up a / into p[] thru the assignment at the top of the loop */
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last = 0;
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break;
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}
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j++;
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}
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if (last) {
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break;
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}
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}
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if (!path[k]) break;
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}
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free(p);
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return 1;
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}
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/* ================================================== */
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#if defined(TEST)
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int main(int argc, char **argv) {
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if (argc > 1) {
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/* Invert sense of result */
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return mkdir_and_parents(argv[1]) ? 0 : 1;
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} else {
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return 1;
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}
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}
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#endif
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