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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1997,2007 Oracle. All rights reserved.
*
* $Id: os_dir.c,v 12.12 2007/05/17 15:15:46 bostic Exp $
*/
#include "db_config.h"
#define __INCLUDE_DIRECTORY 1
#include "db_int.h"
/*
* __os_dirlist --
* Return a list of the files in a directory.
*
* PUBLIC: int __os_dirlist __P((DB_ENV *, const char *, char ***, int *));
*/
int
__os_dirlist(dbenv, dir, namesp, cntp)
DB_ENV *dbenv;
const char *dir;
char ***namesp;
int *cntp;
{
struct dirent *dp;
DIR *dirp;
struct stat sb;
int arraysz, cnt, ret;
char **names, buf[DB_MAXPATHLEN];
if (dbenv != NULL &&
FLD_ISSET(dbenv->verbose, DB_VERB_FILEOPS | DB_VERB_FILEOPS_ALL))
__db_msg(dbenv, "fileops: directory list %s", dir);
if (DB_GLOBAL(j_dirlist) != NULL)
return (DB_GLOBAL(j_dirlist)(dir, namesp, cntp));
#ifdef HAVE_VXWORKS
if ((dirp = opendir((char *)dir)) == NULL)
#else
if ((dirp = opendir(dir)) == NULL)
#endif
return (__os_get_errno());
names = NULL;
for (arraysz = cnt = 0; (dp = readdir(dirp)) != NULL;) {
snprintf(buf, sizeof(buf), "%s/%s", dir, dp->d_name);
/*
* We're only interested in regular files, skip the rest.
* Other parts of Berkeley DB depend on this, for example,
* the db_hotbackup utility doesn't want to try and copy
* directories.
*/
RETRY_CHK(stat(buf, &sb), ret);
if (ret != 0) {
ret = __os_posix_err(ret);
goto err;
}
if (!S_ISREG(sb.st_mode))
continue;
if (cnt >= arraysz) {
arraysz += 100;
if ((ret = __os_realloc(dbenv,
(u_int)arraysz * sizeof(names[0]), &names)) != 0)
goto err;
}
if ((ret = __os_strdup(dbenv, dp->d_name, &names[cnt])) != 0)
goto err;
cnt++;
}
(void)closedir(dirp);
*namesp = names;
*cntp = cnt;
return (0);
err: if (names != NULL)
__os_dirfree(dbenv, names, cnt);
if (dirp != NULL)
(void)closedir(dirp);
return (ret);
}
/*
* __os_dirfree --
* Free the list of files.
*
* PUBLIC: void __os_dirfree __P((DB_ENV *, char **, int));
*/
void
__os_dirfree(dbenv, names, cnt)
DB_ENV *dbenv;
char **names;
int cnt;
{
if (DB_GLOBAL(j_dirfree) != NULL)
DB_GLOBAL(j_dirfree)(names, cnt);
else {
while (cnt > 0)
__os_free(dbenv, names[--cnt]);
__os_free(dbenv, names);
}
}
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