125 lines
3.7 KiB
C
125 lines
3.7 KiB
C
/*
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* Copyright (c) 2009, Nicolas François
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the copyright holders or contributors may not be used to
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* endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <config.h>
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#ident "$Id:$"
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#include <assert.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <security/pam_appl.h>
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#include "prototypes.h"
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/*@null@*/ /*@only@*/char *non_interactive_password = NULL;
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static int ni_conv (int num_msg,
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const struct pam_message **msg,
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struct pam_response **resp,
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unused void *appdata_ptr) {
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struct pam_response *responses;
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int count;
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assert (NULL != non_interactive_password);
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if (num_msg <= 0) {
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return PAM_CONV_ERR;
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}
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responses = (struct pam_response *) calloc ((size_t) num_msg,
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sizeof (*responses));
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if (NULL == responses) {
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return PAM_CONV_ERR;
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}
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for (count=0; count < num_msg; count++) {
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responses[count].resp_retcode = 0;
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switch (msg[count]->msg_style) {
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case PAM_PROMPT_ECHO_ON:
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fprintf (stderr,
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_("%s: PAM modules requesting echoing are not supported.\n"),
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Prog);
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goto failed_conversation;
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case PAM_PROMPT_ECHO_OFF:
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responses[count].resp = strdup (non_interactive_password);
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if (NULL == responses[count].resp) {
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goto failed_conversation;
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}
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break;
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case PAM_ERROR_MSG:
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if ( (NULL == msg[count]->msg)
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|| (fprintf (stderr, "%s\n", msg[count]->msg) <0)) {
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goto failed_conversation;
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}
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responses[count].resp = NULL;
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break;
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case PAM_TEXT_INFO:
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if ( (NULL == msg[count]->msg)
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|| (fprintf (stdout, "%s\n", msg[count]->msg) <0)) {
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goto failed_conversation;
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}
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responses[count].resp = NULL;
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break;
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default:
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(void) fprintf (stderr,
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_("%s: conversation type %d not supported.\n"),
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Prog, msg[count]->msg_style);
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goto failed_conversation;
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}
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}
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*resp = responses;
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return PAM_SUCCESS;
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failed_conversation:
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for (count=0; count < num_msg; count++) {
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if (NULL != responses[count].resp) {
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memset (responses[count].resp, 0,
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strlen (responses[count].resp));
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free (responses[count].resp);
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responses[count].resp = NULL;
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}
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}
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free (responses);
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*resp = NULL;
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return PAM_CONV_ERR;
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}
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struct pam_conv non_interactive_pam_conv = {
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ni_conv,
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NULL
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};
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