December 21, 2007 PAM_SETCRED 3

### NAME

pam_setcred - modify / delete user credentials for an authentication service

### LIBRARY

### SYNOPSIS

```int` pam_setcred(```pam_handle_t *pamh``, int flags`)

### DESCRIPTION

The pam_setcred function manages the application's credentials.

The ```flags` argument is the binary or of zero or more of the following values:

```PAM_SILENT`
  Do not emit any messages.

```PAM_ESTABLISH_CRED`
  Establish the credentials of the target user.

```PAM_DELETE_CRED`
  Revoke all established credentials.

```PAM_REINITIALIZE_CRED`
  Fully reinitialise credentials.

```PAM_REFRESH_CRED`
  Refresh credentials.

The latter four are mutually exclusive.

If any other bits are set, pam_setcred will return ```PAM_SYMBOL_ERR`.

### RETURN VALUES

The pam_setcred function returns one of the following values:

[```PAM_ABORT`]
  General failure.

[```PAM_BUF_ERR`]
  Memory buffer error.

[```PAM_CONV_ERR`]
  Conversation failure.

[```PAM_CRED_ERR`]
  Failed to set user credentials.

[```PAM_CRED_EXPIRED`]
  User credentials have expired.

[```PAM_CRED_UNAVAIL`]
  Failed to retrieve user credentials.

[```PAM_PERM_DENIED`]
  Permission denied.

[```PAM_SERVICE_ERR`]
  Error in service module.

[```PAM_SYMBOL_ERR`]
  Invalid symbol.

[```PAM_SYSTEM_ERR`]
  System error.

[```PAM_USER_UNKNOWN`]
  Unknown user.

### SEE ALSO

pam(3), pam_strerror(3)

### STANDARDS

### AUTHORS

The pam_setcred function and this manual page were developed for the FreeBSD Project by ThinkSec AS and Network Associates Laboratories, the Security Research Division of Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 (``CBOSS''), as part of the DARPA CHATS research program.