2014-07-04 11:18:53 +00:00
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/*-
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* Copyright (c) 2013 Universitetet i Oslo
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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 author may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Author: Dag-Erling Smørgrav <des@des.no>
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* Sponsor: the University of Oslo
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*
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2014-07-04 11:20:46 +00:00
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* $Cryb$
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2014-07-04 11:18:53 +00:00
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*/
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#include "cryb/impl.h"
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#include <sys/types.h>
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#include <inttypes.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <cryb/oath.h>
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#include <cryb/strlcmp.h>
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/*
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* OATH
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*
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* Loads an OATH key from a file
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*/
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struct oath_key *
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oath_key_from_file(const char *filename)
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{
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struct oath_key *key;
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FILE *f;
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char *line;
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size_t len;
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if ((f = fopen(filename, "r")) == NULL)
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return (NULL);
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/* get first non-empty non-comment line */
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line = openpam_readline(f, NULL, &len);
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if (strlcmp("otpauth://", line, len) == 0) {
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key = oath_key_from_uri(line);
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} else {
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/*
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openpam_log(PAM_LOG_ERROR,
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"unrecognized key file format: %s", filename);
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*/
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key = NULL;
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}
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fclose(f);
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return (key);
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}
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/**
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* The =oath_key_from_file function loads a key from the specified file.
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* The file format is automatically detected.
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*
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* The following key file formats are supported:
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*
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* - otpauth URI
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*
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* Keys created with =oath_key_from_file must be freed using
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* =oath_key_free.
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*
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* >oath_key_alloc
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* >oath_key_free
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* >oath_key_from_uri
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*
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* AUTHOR UIO
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*/
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