#include <db.h>

int
db_env_set_func_dirlist(
    int (*func_dirlist)(const char *dir, char ***namesp, int *cntp));

Description

The Berkeley DB library requires the ability to read through a directory and create a list of files that that the directory contains. The func_dirlist argument must conform to the following interface:

int dirlist(const char *dir, char ***namesp, int *cntp);

The dir argument is the name of the directory to be searched. The function must return a pointer to an array of nul-terminated file names in the memory location referenced by the argument namesp, and a count of the number of elements in the array in the memory location referenced by cntp.

The func_dirlist function must return the value of errno on failure and 0 on success.

The db_env_set_func_dirlist interface affects the entire application, not a single database or database environment.

While the db_env_set_func_dirlist interface may be used to configure Berkeley DB at any time during the life of the application, it should normally be called before making any calls to the db_env_create or db_create functions.

The db_env_set_func_dirlist interface may only be used to configure Berkeley DB before the DBENV->open interface is called.

The db_env_set_func_dirlist function returns a non-zero error value on failure and 0 on success.

Errors

EINVAL

An invalid flag value or parameter was specified.

See Also