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d_mkdir.c
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d_mkdir.c
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/*!
* \file db/dbmi_driver/d_mkdir.c
*
* \brief DBMI Library (driver) - creare directories
*
* (C) 1999-2008 by the GRASS Development Team
*
* This program is free software under the GNU General Public
* License (>=v2). Read the file COPYING that comes with GRASS
* for details.
*
* \author Joel Jones (CERL/UIUC), Radim Blazek
*/
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <grass/dbmi.h>
#include "dbstubs.h"
static char *rfind(char *string, char c);
static int make_parent_dir(char *path, int mode);
static int make_dir(const char *path, int mode);
/*!
\brief Create db directory
\param path full path
\param mode mode
\param parentdirs parent directories
\return DB_OK on success
\return DB_FAILED on failure
*/
int db_driver_mkdir(const char *path, int mode, int parentdirs)
{
if (parentdirs) {
char path2[GPATH_MAX];
strcpy(path2, path);
if (make_parent_dir(path2, mode) != DB_OK)
return DB_FAILED;
}
return make_dir(path, mode);
}
/* make a directory if it doesn't exist */
/* this routine could be made more intelligent as to why it failed */
static int make_dir(const char *path, int mode)
{
if (db_isdir(path) == DB_OK)
return DB_OK;
if (G_mkdir(path) == 0)
return DB_OK;
db_syserror(path);
return DB_FAILED;
}
static int make_parent_dir(char *path, int mode)
{
char *slash;
int stat;
slash = rfind(path, '/');
if (slash == NULL || slash == path)
return DB_OK; /* no parent dir to make. return ok */
*slash = 0; /* add NULL to terminate parentdir string */
if (access(path, 0) == 0) { /* path exists, good enough */
stat = DB_OK;
}
else if (make_parent_dir(path, mode) != DB_OK) {
stat = DB_FAILED;
}
else if (make_dir(path, mode) == DB_OK) {
stat = DB_OK;
}
else {
stat = DB_FAILED;
}
*slash = '/'; /* put the slash back into the path */
return stat;
}
static char *rfind(char *string, char c)
{
char *found;
found = NULL;
while (*string) {
if (*string == c)
found = string;
string++;
}
return found;
}