mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-22 11:17:19 +00:00
129 lines
3.9 KiB
C
129 lines
3.9 KiB
C
/*-
|
|
* Copyright (c) 2002-2003 Networks Associates Technology, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This software was 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.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote
|
|
* products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $P4: //depot/projects/openpam/lib/pam_vprompt.c#13 $
|
|
*/
|
|
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#include <security/pam_appl.h>
|
|
|
|
#include "openpam_impl.h"
|
|
|
|
/*
|
|
* OpenPAM extension
|
|
*
|
|
* Call the conversation function
|
|
*/
|
|
|
|
int
|
|
pam_vprompt(pam_handle_t *pamh,
|
|
int style,
|
|
char **resp,
|
|
const char *fmt,
|
|
va_list ap)
|
|
{
|
|
char msgbuf[PAM_MAX_MSG_SIZE];
|
|
struct pam_message msg;
|
|
const struct pam_message *msgp;
|
|
struct pam_response *rsp;
|
|
const struct pam_conv *conv;
|
|
const void *convp;
|
|
int r;
|
|
|
|
ENTER();
|
|
r = pam_get_item(pamh, PAM_CONV, &convp);
|
|
if (r != PAM_SUCCESS)
|
|
RETURNC(r);
|
|
conv = convp;
|
|
if (conv == NULL || conv->conv == NULL) {
|
|
openpam_log(PAM_LOG_ERROR, "no conversation function");
|
|
RETURNC(PAM_SYSTEM_ERR);
|
|
}
|
|
vsnprintf(msgbuf, PAM_MAX_MSG_SIZE, fmt, ap);
|
|
msg.msg_style = style;
|
|
msg.msg = msgbuf;
|
|
msgp = &msg;
|
|
rsp = NULL;
|
|
r = (conv->conv)(1, &msgp, &rsp, conv->appdata_ptr);
|
|
*resp = rsp == NULL ? NULL : rsp->resp;
|
|
FREE(rsp);
|
|
RETURNC(r);
|
|
}
|
|
|
|
/*
|
|
* Error codes:
|
|
*
|
|
* !PAM_SYMBOL_ERR
|
|
* PAM_SYSTEM_ERR
|
|
* PAM_BUF_ERR
|
|
* PAM_CONV_ERR
|
|
*/
|
|
|
|
/**
|
|
* The =pam_vprompt function constructs a string from the =fmt and =ap
|
|
* arguments using =vsnprintf, and passes it to the given PAM context's
|
|
* conversation function.
|
|
*
|
|
* The =style argument specifies the type of interaction requested, and
|
|
* must be one of the following:
|
|
*
|
|
* =PAM_PROMPT_ECHO_OFF:
|
|
* Display the message and obtain the user's response without
|
|
* displaying it.
|
|
* =PAM_PROMPT_ECHO_ON:
|
|
* Display the message and obtain the user's response.
|
|
* =PAM_ERROR_MSG:
|
|
* Display the message as an error message, and do not wait
|
|
* for a response.
|
|
* =PAM_TEXT_INFO:
|
|
* Display the message as an informational message, and do
|
|
* not wait for a response.
|
|
*
|
|
* A pointer to the response, or =NULL if the conversation function did
|
|
* not return one, is stored in the location pointed to by the =resp
|
|
* argument.
|
|
*
|
|
* The message and response should not exceed =PAM_MAX_MSG_SIZE or
|
|
* =PAM_MAX_RESP_SIZE, respectively.
|
|
* If they do, they may be truncated.
|
|
*
|
|
* >pam_error
|
|
* >pam_info
|
|
* >pam_prompt
|
|
* >pam_verror
|
|
* >pam_vinfo
|
|
*/
|