d_mkdir.c

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#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);


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;
}