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| author | Guido Berhoerster <guido+libpws@berhoerster.name> |
|---|---|
| date | Wed, 25 Mar 2015 17:10:23 +0100 |
| parents | |
| children | b3fc9f7e2b43 |
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<?xml version="1.0"?> <!-- Copyright (C) 2015 Guido Berhoerster <guido+libpws@berhoerster.name> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. --> <refentry xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xml:lang="en"> <info> <author> <personname> <firstname>Guido</firstname> <surname>Berhoerster</surname> </personname> <email>guido+libpws@berhoerster.name</email> <personblurb/> </author> <date>21 March, 2015</date> </info> <refmeta> <refentrytitle>libpws</refentrytitle> <manvolnum>3</manvolnum> <refmiscinfo class="source"/> <refmiscinfo class="version"/> <refmiscinfo class="manual">Library Functions</refmiscinfo> </refmeta> <refnamediv> <refname>pws3_file_create</refname> <refname>pws3_file_destroy</refname> <refname>pws3_file_get_error_code</refname> <refname>pws3_file_get_error_message</refname> <refname>pws3_file_read_mem</refname> <refname>pws3_file_read_stream</refname> <refname>pws3_file_write_mem</refname> <refname>pws3_file_write_stream</refname> <refname>pws3_file_set_header_field</refname> <refname>pws3_file_get_header_field</refname> <refname>pws3_file_remove_header_field</refname> <refname>pws3_file_insert_empty_group</refname> <refname>pws3_file_get_empty_group</refname> <refname>pws3_file_remove_empty_group</refname> <refname>pws3_file_first_empty_group</refname> <refname>pws3_file_last_empty_group</refname> <refname>pws3_file_next_empty_group</refname> <refname>pws3_file_prev_empty_group</refname> <refname>pws3_file_insert_record</refname> <refname>pws3_file_get_record</refname> <refname>pws3_file_remove_record</refname> <refname>pws3_file_first_record</refname> <refname>pws3_file_last_record</refname> <refname>pws3_file_next_record</refname> <refname>pws3_file_prev_record</refname> <refname>pws3_field_create</refname> <refname>pws3_field_destroy</refname> <refname>pws3_field_is_header</refname> <refname>pws3_field_get_type</refname> <refname>pws3_field_get_data_type</refname> <refname>pws3_field_set_uuid</refname> <refname>pws3_field_set_text</refname> <refname>pws3_field_set_time</refname> <refname>pws3_field_set_uint8</refname> <refname>pws3_field_set_uint16</refname> <refname>pws3_field_set_uint32</refname> <refname>pws3_field_set_bytes</refname> <refname>pws3_field_get_uuid</refname> <refname>pws3_field_get_text</refname> <refname>pws3_field_get_time</refname> <refname>pws3_field_get_uint8</refname> <refname>pws3_field_get_uint16</refname> <refname>pws3_field_get_uint32</refname> <refname>pws3_field_get_bytes</refname> <refname>pws3_record_create</refname> <refname>pws3_record_destroy</refname> <refname>pws3_record_set_field</refname> <refname>pws3_record_get_field</refname> <refname>pws3_record_remove_field</refname> <refpurpose>create and manipulate Password Safe File Version 3 files</refpurpose> </refnamediv> <refsynopsisdiv> <cmdsynopsis> <command>cc</command> <arg choice="opt" rep="repeat"> <option>flag</option> </arg> <arg choice="plain" rep="repeat"> <option>file</option> </arg> <arg choice="plain"> <option>-lpws</option> </arg> <arg choice="plain"> <option>-lnettle</option> </arg> <arg choice="opt" rep="repeat"> <option>library</option> </arg> </cmdsynopsis> <funcsynopsis> <funcsynopsisinfo> #include <pws.h> </funcsynopsisinfo> <funcprototype> <funcdef>struct pws3_file *<function>pws3_file_create</function></funcdef> <void/> </funcprototype> <funcprototype> <funcdef>void <function>pws3_file_destroy</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>enum pws_error_code <function>pws3_file_get_error_code</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>const char * <function>pws3_file_get_error_message</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>int <function>pws3_file_read_mem</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> <paramdef>const char *<parameter><replaceable>password</replaceable></parameter></paramdef> <paramdef>unsigned char *<parameter><replaceable>s</replaceable></parameter></paramdef> <paramdef>size_t <parameter><replaceable>n</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>int <function>pws3_file_read_stream</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> <paramdef>const char *<parameter><replaceable>password</replaceable></parameter></paramdef> <paramdef>FILE *<parameter><replaceable>fp</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>int <function>pws3_file_write_mem</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> <paramdef>const char *<parameter><replaceable>password</replaceable></parameter></paramdef> <paramdef>uint32_t <parameter><replaceable>n_iter</replaceable></parameter></paramdef> <paramdef>unsigned char **<parameter><replaceable>memp</replaceable></parameter></paramdef> <paramdef>size_t *<parameter><replaceable>mem_sizep</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>int <function>pws3_file_write_stream</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> <paramdef>const char *<parameter><replaceable>password</replaceable></parameter></paramdef> <paramdef>uint32_t <parameter><replaceable>n_iter</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>void <function>pws3_file_set_header_field</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>struct pws3_field * <function>pws3_file_get_header_field</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> <paramdef>uint8_t <parameter><replaceable>field_type</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>struct pws3_field * <function>pws3_file_remove_header_field</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> <paramdef>uint8_t <parameter><replaceable>field_type</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>void <function>pws3_file_insert_empty_group</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>struct pws3_field * <function>pws3_file_get_empty_group</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> <paramdef>const char *<parameter><replaceable>group_name</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>struct pws3_field * <function>pws3_file_remove_empty_group</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> <paramdef>const char *<parameter><replaceable>group_name</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>struct pws3_field * <function>pws3_file_first_empty_group</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>struct pws3_field * <function>pws3_file_last_empty_group</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>struct pws3_field * <function>pws3_file_next_empty_group</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>struct pws3_field * <function>pws3_file_prev_empty_group</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>void <function>pws3_file_insert_record</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> <paramdef>struct pws3_record *<parameter><replaceable>record</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>struct pws3_record * <function>pws3_file_get_record</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> <paramdef>const unsigned char <parameter><replaceable>uuid</replaceable>[static PWS3_UUID_SIZE]</parameter></paramdef> </funcprototype> <funcprototype> <funcdef>struct pws3_record * <function>pws3_file_remove_record</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> <paramdef>const unsigned char <parameter><replaceable>uuid</replaceable>[static PWS3_UUID_SIZE]</parameter></paramdef> </funcprototype> <funcprototype> <funcdef>struct pws3_record * <function>pws3_file_first_record</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>struct pws3_record * <function>pws3_file_last_record</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>struct pws3_record * <function>pws3_file_next_record</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> <paramdef>struct pws3_record *<parameter><replaceable>record</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>struct pws3_record * <function>pws3_file_prev_record</function></funcdef> <paramdef>struct pws3_file *<parameter><replaceable>pws_file</replaceable></parameter></paramdef> <paramdef>struct pws3_record *<parameter><replaceable>record</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>struct pws3_field * <function>pws3_field_create</function></funcdef> <paramdef>int <parameter><replaceable>is_header</replaceable></parameter></paramdef> <paramdef>uint8_t <parameter><replaceable>field_type</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>void <function>pws3_field_destroy</function></funcdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>int <function>pws3_field_is_header</function></funcdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>uint8_t * <function>pws3_field_get_type</function></funcdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>enum pws_data_type * <function>pws3_field_get_data_type</function></funcdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>int <function>pws3_field_set_uuid</function></funcdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> <paramdef>const unsigned char <parameter><replaceable>uuid</replaceable>[static PWS3_UUID_SIZE]</parameter></paramdef> </funcprototype> <funcprototype> <funcdef>int <function>pws3_field_set_text</function></funcdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> <paramdef>const char <parameter><replaceable>s</replaceable>[static 1]</parameter></paramdef> </funcprototype> <funcprototype> <funcdef>int <function>pws3_field_set_time</function></funcdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> <paramdef>time_t <parameter><replaceable>time</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>int <function>pws3_field_set_uint8</function></funcdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> <paramdef>uint8_t <parameter><replaceable>u8</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>int <function>pws3_field_set_uint16</function></funcdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> <paramdef>uint16_t <parameter><replaceable>u16</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>int <function>pws3_field_set_uint32</function></funcdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> <paramdef>uint32_t <parameter><replaceable>u32</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>int <function>pws3_field_set_bytes</function></funcdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> <paramdef>const unsigned char <parameter><replaceable>s</replaceable>[static 1]</parameter></paramdef> <paramdef>size_t <parameter><replaceable>n</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>const unsigned char * <function>pws3_field_get_uuid</function></funcdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>const char * <function>pws3_field_get_text</function></funcdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>time_t <function>pws3_field_get_time</function></funcdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>uint8_t <function>pws3_field_get_uint8</function></funcdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>uint16_t <function>pws3_field_get_uint16</function></funcdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>uint32_t <function>pws3_field_get_uint32</function></funcdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> </funcprototype> <funcprototype> <funcdef>void <function>pws3_field_get_bytes</function></funcdef> <paramdef>struct pws3_field *<parameter><replaceable>field</replaceable></parameter></paramdef> <paramdef>const unsigned char **<parameter><replaceable>pp</replaceable></parameter></paramdef> <paramdef>size_t *<parameter><replaceable>np</replaceable></parameter></paramdef> </funcprototype> </funcsynopsis> <synopsis> <constant>PWS3_VERSION</constant> <constant>PWS3_MAX_FIELD_LEN</constant> <constant>PWS3_MAX_PASSWORD_LEN</constant> <constant>PWS3_UUID_SIZE</constant> struct pws3_field; struct pws3_record; struct pws3_file; enum pws_error_code; enum pws_data_type; enum pws3_header_field_type; enum pws3_record_field_type; </synopsis> </refsynopsisdiv> <refsect1> <title>Description</title> <refsect2> <title>Introduction</title> <para>The <function>pws3_*()</function> family of functions allows creating, reading, writing, and manipulating Password Safe version 3 files. Password Safe version 3 files consist of a header and a body part. The header is comprised of both mandatory and optional typed header fields which hold file-wide metadata. The body consists of records which in turn hold passwords and associated metadata in typed record fields.</para> <para>A header or record field value can be of one of seven basic data types defined below: <table xml:id="table-data-types"> <title>Header and Record Field Value Data Types</title> <tgroup cols="3" align="left" colsep="1" rowsep="1"> <thead> <row> <entry>Data Type</entry> <entry>C Type</entry> <entry>Description</entry> </row> </thead> <tbody> <row> <entry><constant>PWS_DATA_TYPE_UUID</constant></entry> <entry><code>unsigned char [PWS3_UUID_SIZE]</code></entry> <entry>UUID</entry> </row> <row> <entry><constant>PWS_DATA_TYPE_TEXT</constant></entry> <entry><code>char *</code></entry> <entry>NUL-delimited UTF-8 encoded string</entry> </row> <row> <entry><constant>PWS_DATA_TYPE_TIME</constant></entry> <entry><code>time_t</code></entry> <entry>system-specific representation of time</entry> </row> <row> <entry><constant>PWS_DATA_TYPE_UINT8</constant></entry> <entry><code>uint8_t</code></entry> <entry>8-bit wide unsigned integer</entry> </row> <row> <entry><constant>PWS_DATA_TYPE_UINT16</constant></entry> <entry><code>uint16_t</code></entry> <entry>16-bit wide unsigned integer</entry> </row> <row> <entry><constant>PWS_DATA_TYPE_UINT32</constant></entry> <entry><code>uint32_t</code></entry> <entry>32-bit wide unsigned integer</entry> </row> <row> <entry><constant>PWS_DATA_TYPE_BYTES</constant></entry> <entry><code>unsigned char *</code></entry> <entry>array of bytes</entry> </row> </tbody> </tgroup> </table> </para> <para>The data type of each header field is defined in <xref linkend="table-header-fields"/> and the data type of each record field is defined in <xref linkend="table-record-fields"/>. Each header field, with the exception of the empty groups header field, can only occur once. The version header field (<constant>PWS3_HEADER_FIELD_VERSION</constant>) is mandatory and must not be removed. When reading a file its value is checked and an error is returned if the file format version newer than the one supported by <citerefentry><refentrytitle>libpws</refentrytitle><manvolnum>3</manvolnum></citerefentry>. The supported version is defined by the <constant>PWS3_VERSION</constant> macro, when creating a new file structure the version header field will be set to its value by default. Non-standard header and record fields will be preserved when a file is read and subsequently written again, they may be read and manipulated as if they had <constant>PWS_DATA_TYPE_BYTES</constant> data type. All strings are expected to be in UTF-8 encoding.</para> <para>The only mandatory record field is the UUID field which uniquely identifies a record in the file.</para> <para>The complete and authoritative specification of the file format is included with the original Password Safe application available from <link xlink:href="https://pwsafe.org/"/>.</para> </refsect2> <refsect2> <title>Password Safe File Data Structure</title> <para>The <function>pws3_file_create()</function> function allocates and intializes a Password Safe file data structure representing a Password Safe version 3 file. It automatically creates the mandatory version header field and initializes it to the value of the <constant>PWS3_VERSION</constant> macro.</para> <para>The <function>pws3_file_destroy()</function> function deallocates all header fields and records of the file structure passed to it and then deallocates the file structure itself.</para> <para>The <function>pws3_file_read_mem()</function> and <function>pws3_file_read_stream()</function> functions read and parse a Password Safe file into the given data structure passed via the <parameter>pws_file</parameter> argument, replacing any existing header fields and records. The key used to decrypt the file is derived from the given <parameter>password</parameter> parameter. The <function>pws3_file_read_mem()</function> function reads the file from a block of memory <parameter>s</parameter> with the size of <parameter>n</parameter> bytes. The <function>pws3_file_read_stream()</function> reads the file from the stream of the <parameter>fp</parameter> file pointer.</para> <para>The <function>pws3_file_write_mem()</function> and <function>pws3_file_write_stream()</function> functions write a new Password Safe file from the given datat structure. The key used to encrypt the file is derived from the <parameter>password</parameter> argument using the number of iterations to stretch the key determined by the <parameter>n_iter</parameter> argument. The <function>pws3_file_write_mem()</function> will allocate and place the file contents into memory and return the location and size to the locations <parameter>sp</parameter> and <parameter>np</parameter> point to. The <function>pws3_file_write_stream()</function> will write the file contents to the stream of the <parameter>fp</parameter> file pointer.</para> </refsect2> <refsect2> <title>Fields</title> <para>Both header and record fields are stored in <varname>pws3_field</varname> structures which are allocated and initialized with the <function>pws3_field_create()</function> function. Depending on whether <parameter>is_header</parameter> is non-zero either a header field or a record field data structure of the given field type will be created.</para> <para>The <function>pws3_field_destroy()</function> function deallocates the given field data structure and its content.</para> <para>The <function>pws3_field_is_header()</function> function can be used to test whether the given field data structure refers to a header field or a record field.</para> <para>The <function>pws3_field_get_type()</function> function returns the field type of the given field data structure.</para> <para>The <function>pws3_field_get_data_type()</function> function returns the data type of the given field structure.</para> <para>The <function>pws3_field_set_uuid()</function>, <function>pws3_field_set_text()</function>, <function>pws3_field_set_time()</function>, <function>pws3_field_set_uint8()</function>, <function>pws3_field_set_uint16()</function>, <function>pws3_field_set_uint32()</function>, and <function>pws3_field_set_bytes()</function> functions set the content of the given field. The given data is always copied and existing content is replaced. The data type used by the function must match the data type of the field specified in <xref linkend="table-header-fields"/> in case of header fields or that in <xref linkend="table-record-fields"/> in case of record fields.</para> <para>The <function>pws3_field_get_time()</function>, <function>pws3_field_get_uint8()</function>, <function>pws3_field_get_uint16()</function>, and <function>pws3_field_get_uint32()</function> functions return the value of the given field. The <function>pws3_field_get_uuid()</function>, <function>pws3_field_get_text()</function>, and <function>pws3_field_get_bytes()</function> functions return a pointer to the data of the given field if it has been set. The data type used by the function must match the data type of the field specified in <xref linkend="table-header-fields"/> in case of header fields and that in <xref linkend="table-record-fields"/> in case of record fields. Returned pointers are only valid until a field is modified or deallocated.</para> </refsect2> <refsect2> <title>Header Fields</title> <para>Header fields are used to store metadata for the whole file, each type of header field with the exception of the empty groups header field only occurs once. The following header fields are supported: <table xml:id="table-header-fields"> <title>Header Fields</title> <tgroup cols="4" align="left" colsep="1" rowsep="1"> <thead> <row> <entry>Header Field Type</entry> <entry>Numeric Value</entry> <entry>Data Type</entry> <entry>Description</entry> </row> </thead> <tbody> <row> <entry><constant>PWS3_​HEADER_​FIELD_​VERSION</constant></entry> <entry><literal>0x00</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​UINT16</constant></entry> <entry>file format version</entry> </row> <row> <entry><constant>PWS3_​HEADER_​FIELD_​UUID</constant></entry> <entry><literal>0x01</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​UUID</constant></entry> <entry>UUID</entry> </row> <row> <entry><constant>PWS3_​HEADER_​FIELD_​NON_​DEFAULT_​PREFERENCES</constant></entry> <entry><literal>0x02</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>non-default preferences</entry> </row> <row> <entry><constant>PWS3_​HEADER_​FIELD_​TREE_​DISPLAY_​STATUS</constant></entry> <entry><literal>0x03</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>expandended/​collapsed state of the tree of groups</entry> </row> <row> <entry><constant>PWS3_​HEADER_​FIELD_​SAVE_​TIMESTAMP</constant></entry> <entry><literal>0x04</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TIME</constant></entry> <entry>time when the file was last saved</entry> </row> <row> <entry><constant>PWS3_​HEADER_​FIELD_​SAVE_​USER_​HOST</constant></entry> <entry><literal>0x05</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>name of the user who last saved the file and name of the host where the file was saved</entry> </row> <row> <entry><constant>PWS3_​HEADER_​FIELD_​SAVE_​APPLICATION</constant></entry> <entry><literal>0x06</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>name of the application used to save the file</entry> </row> <row> <entry><constant>PWS3_​HEADER_​FIELD_​SAVE_​USER</constant></entry> <entry><literal>0x07</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>name of the user who last saved the file</entry> </row> <row> <entry><constant>PWS3_​HEADER_​FIELD_​SAVE_​HOST</constant></entry> <entry><literal>0x08</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>name of the host where the file was last saved</entry> </row> <row> <entry><constant>PWS3_​HEADER_​FIELD_​DATABASE_​NAME</constant></entry> <entry><literal>0x09</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>logical name for referring to the file</entry> </row> <row> <entry><constant>PWS3_​HEADER_​FIELD_​DATABASE_​DESCRIPTION</constant></entry> <entry><literal>0x0a</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>description of the file</entry> </row> <row> <entry><constant>PWS3_​HEADER_​FIELD_​DATABASE_​FILTERS</constant></entry> <entry><literal>0x0b</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>filters for this file</entry> </row> <row> <entry><constant>PWS3_​HEADER_​FIELD_​RESERVED_​1</constant></entry> <entry><literal>0x0c</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​BYTES</constant></entry> <entry>reserved</entry> </row> <row> <entry><constant>PWS3_​HEADER_​FIELD_​RESERVED_​2</constant></entry> <entry><literal>0x0d</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​BYTES</constant></entry> <entry>reserved</entry> </row> <row> <entry><constant>PWS3_​HEADER_​FIELD_​RESERVED_​3</constant></entry> <entry><literal>0x0e</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​BYTES</constant></entry> <entry>reseved</entry> </row> <row> <entry><constant>PWS3_​HEADER_​FIELD_​RECENTLY_​USED_​ENTRIES</constant></entry> <entry><literal>0x0f</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>list of recently used entries</entry> </row> <row> <entry><constant>PWS3_​HEADER_​FIELD_​NAMED_​PASSWORD_​POLICIES</constant></entry> <entry><literal>0x10</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>named password policies</entry> </row> <row> <entry><constant>PWS3_​HEADER_​FIELD_​EMPTY_​GROUPS</constant></entry> <entry><literal>0x11</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>empty groups which contain no entries</entry> </row> <row> <entry><constant>PWS3_​HEADER_​FIELD_​YUBICO</constant></entry> <entry><literal>0x12</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>reserved</entry> </row> </tbody> </tgroup> </table> </para> <para>The <function>pws3_file_set_header_field()</function> function sets the header field on the given file. An existing field of the same type is replaced with the exception of fields of type <constant>PWS3_HEADER_FIELD_EMPTY_GROUPS</constant> for which <function>pws3_file_set_header_field()</function> has the same effect as calling the <function>pws3_file_insert_empty_group()</function> function.</para> <para>The <function>pws3_file_get_header_field()</function> function returns a pointer to the header field data structure of the given header field type. In case of the <constant>PWS3_HEADER_FIELD_EMPTY_GROUPS</constant> field type a pointer to the first empty group field is returned.</para> <para>The <function>pws3_file_remove_header_field()</function> function removes the header field from the given file and returns a pointer to it. It is the responsibility of the caller to deallocate the header field data structure. In case of the <constant>PWS3_HEADER_FIELD_EMPTY_GROUPS</constant> field type the first empty group is removed.</para> <para>The <function>pws3_file_insert_empty_group()</function> function inserts the given empty groups field into the file, an existing field for a group of the same name is replaced.</para> <para>The <function>pws3_file_get_empty_group()</function> function returns a pointer to the header field datat structure representing an empty group of the given name.</para> <para>The <function>pws3_file_remove_empty_group()</function> function removes the field representing the empty group of the given name from the file and returns a pointer to the header field data structure. It is the responsibility of the caller to deallocate the header field data structure.</para> <para>The <function>pws3_file_first_empty_group()</function> function returns a pointer to the first empty group header field.</para> <para>The <function>pws3_file_last_empty_group()</function> function returns a pointer to the last empty group header field.</para> <para>The <function>pws3_file_next_empty_group()</function> function returns a pointer to the next empty group header filed data structure following the given <parameter>field</parameter>.</para> <para>The <function>pws3_file_prev_empty_groupious()</function> function returns a pointer to the previous empty group header filed data structure preceding the given <parameter>field</parameter>.</para> </refsect2> <refsect2> <title>Records</title> <para>Records consist of at least one or more typed fields, they are identified by an UUID which is the only mandatory field and must not be removed. For presentational purposes records may be organized in hierarchical groups. The following record fields are supported: <table xml:id="table-record-fields"> <title>Record Fields</title> <tgroup cols="4" align="left" colsep="1" rowsep="1"> <thead> <row> <entry>Record Field Type</entry> <entry>Numeric Value</entry> <entry>Data Type</entry> <entry>Description</entry> </row> </thead> <tbody> <row> <entry><constant>PWS3_​RECORD_​FIELD_​UUID</constant></entry> <entry><literal>0x01</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​UUID</constant></entry> <entry>UUID identifying the record</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​GROUP</constant></entry> <entry><literal>0x02</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>group name the record is a member of</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​TITLE</constant></entry> <entry><literal>0x03</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>title</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​USERNAME</constant></entry> <entry><literal>0x04</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>username</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​NOTES</constant></entry> <entry><literal>0x05</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>notes</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​PASSWORD</constant></entry> <entry><literal>0x06</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>password</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​CREATION_​TIME</constant></entry> <entry><literal>0x07</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TIME</constant></entry> <entry>time when the record was created</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​PASSWORD_​MODIFICATION_​TIME</constant></entry> <entry><literal>0x08</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TIME</constant></entry> <entry>time when the password was last modified</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​ACCESS_​TIME</constant></entry> <entry><literal>0x09</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TIME</constant></entry> <entry>time when the record was last accessed</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​PASSWORD_​EXPIRY_​TIME</constant></entry> <entry><literal>0x0a</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TIME</constant></entry> <entry>time when the password expires</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​RESERVED_​1</constant></entry> <entry><literal>0x0b</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​BYTES</constant></entry> <entry>reserved</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​MODIFICATION_​TIME</constant></entry> <entry><literal>0x0c</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TIME</constant></entry> <entry>time at whcih the record was last modified</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​URL</constant></entry> <entry><literal>0x0d</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>URL</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​AUTOTYPE</constant></entry> <entry><literal>0x0e</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>text to be typed when using the autotype feature</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​PASSWORD_​HISTORY</constant></entry> <entry><literal>0x0f</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>creation time and values of previously used passwords</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​PASSWORD_​POLICY</constant></entry> <entry><literal>0x10</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>password policy</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​PASSWORD_​EXPIRY_​INTERVAL</constant></entry> <entry><literal>0x11</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​UINT32</constant></entry> <entry>days until the password expires</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​RUN_​COMMAND</constant></entry> <entry><literal>0x12</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>command</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​DOUBLE_​CLICK_​ACTION</constant></entry> <entry><literal>0x13</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​BYTES</constant></entry> <entry>action on double clicking</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​EMAIL_​ADDRESS</constant></entry> <entry><literal>0x14</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>email address</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​PROTECTED</constant></entry> <entry><literal>0x15</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​UINT8</constant></entry> <entry>flag whether the record is protected from modification</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​ALLOWED_​PASSWORD_​SYMBOLS</constant></entry> <entry><literal>0x16</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>allowed symbols for generating passwords</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​SHIFT_​DOUBLE_​CLICK_​ACTION</constant></entry> <entry><literal>0x17</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​BYTES</constant></entry> <entry>action on pressing shift and double clicking</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​PASSWORD_​POLICY_​NAME</constant></entry> <entry><literal>0x18</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​TEXT</constant></entry> <entry>name of password policy saved in the header</entry> </row> <row> <entry><constant>PWS3_​RECORD_​FIELD_​KEYBOARD_​SHORTCUT</constant></entry> <entry><literal>0x19</literal></entry> <entry><constant>PWS_​DATA_​TYPE_​BYTES</constant></entry> <entry>keyboard shortcut</entry> </row> </tbody> </tgroup> </table> </para> <para>The <function>pws3_record_create()</function> function allocates and creates a record data structure, generates an UUID record field and adds it to the record.</para> <para>The <function>pws3_record_destroy()</function> function deallocates the given record data structure and all its record fields.</para> <para>The <function>pws3_file_record_field_set()</function> function sets the record field on the given record, replacing an existing field of the same type.</para> <para>The <function>pws3_file_record_field_get()</function> function returns a pointer to the record field data structure of the given record field type.</para> <para>The <function>pws3_file_record_field_remove()</function> function removes the record field from the given record and returns a pointer to it. It is the responsibility of the caller to deallocate the record field data structure.</para> <para>The <function>pws3_file_insert_record()</function> function inserts the given record into the file, an existing record with the same UUID is replaced.</para> <para>The <function>pws3_file_get_record()</function> function returns a pointer to the record structure representing a record with the given UUID.</para> <para>The <function>pws3_file_remove_record()</function> function removes the record with the given UUID from the file and returns a pointer to the record data structure. It is the responsibility of the caller to deallocate the record data structure.</para> <para>The <function>pws3_file_first_record()</function> function returns a pointer to the first record.</para> <para>The <function>pws3_file_last_record()</function> function returns a pointer to the last record.</para> <para>The <function>pws3_file_next_record()</function> function returns a pointer to the next record following the given <parameter>record</parameter>.</para> <para>The <function>pws3_file_prev_record()</function> function returns a pointer to the previous group preceding the given <parameter>record</parameter>.</para> </refsect2> <refsect2> <title>Macros</title> <para>The macro <constant>PWS3_VERSION</constant> contains the supported version of the Password Safe version 3 file format.</para> <para>The macro <constant>PWS3_MAX_FIELD_SIZE</constant> contains the maxium size for header and record fields in bytes and <constant>PWS3_MAX_PASSWORD_LEN</constant> contains the maxium password length in bytes.</para> <para>The macro <constant>PWS3_UUID_SIZE</constant> contains the size of UUIDs in bytes.</para> </refsect2> </refsect1> <refsect1> <title>Return Values</title> <para>The <function>pws3_file_create()</function> function returns a pointer to a Password Safe file data structure if successful and <constant>NULL</constant> in case of an error.</para> <para>The <function>pws3_file_read_mem()</function>, <function>pws3_file_read_stream()</function>, <function>pws3_file_write_mem()</function>, and <function>pws3_file_write_stream()</function> functions return <returnvalue>0</returnvalue> on success and <returnvalue>-1</returnvalue> to indicate an error.</para> <para>The <function>pws3_file_get_header_field()</function> function returns a pointer to the header field data structure of the requested type and <constant>NULL</constant> if such a field does not exist.</para> <para>The <function>pws3_file_remove_header_field()</function> function returns a pointer to the header field data structure which was removed from the file or <constant>NULL</constant> if such a field does not exist.</para> <para>The <function>pws3_file_get_empty_group()</function> function returns a pointer to the header field data structure corresponding to the requested empty group and <constant>NULL</constant> if a group of that name does not exist.</para> <para>The <function>pws3_file_remove_empty_group()</function> function returns a pointer to the header field data structure of the empty group which was removed from the file or <constant>NULL</constant> if a group of that name does not exist.</para> <para>The <function>pws3_file_first_empty_group()</function> function returns a pointer to the first of the empty group header fields or <constant>NULL</constant> if there are no such fields.</para> <para>The <function>pws3_file_last_empty_group()</function> function returns a pointer to the last of the empty group header fields or <constant>NULL</constant> if there are no such fields.</para> <para>The <function>pws3_file_next_empty_group()</function> function returns a pointer to the next empty group header field or <constant>NULL</constant> if there are no more such fields.</para> <para>The <function>pws3_file_prev_empty_group()</function> function returns a pointer to the previous empty group header field or <constant>NULL</constant> if there are no more such fields.</para> <para>The <function>pws3_file_get_record()</function> function returns a pointer to the record data structure of the requested record or <constant>NULL</constant> if that record does not exist.</para> <para>The <function>pws3_file_remove_record()</function> function returns a pointer to the record data structure which was removed from the file or <constant>NULL</constant> if no such record exists.</para> <para>The <function>pws3_file_first_record()</function> function returns a pointer to the record data structure of the first record or <constant>NULL</constant> if no records exist.</para> <para>The <function>pws3_file_last_record()</function> function returns a pointer to the record data structure of the last record or <constant>NULL</constant> if no records exist.</para> <para>The <function>pws3_file_next_record()</function> function returns a pointer to the record data structure of the next record or <constant>NULL</constant> if no records exist.</para> <para>The <function>pws3_file_prev_record()</function> function returns a pointer to the record data structure of the previous record or <constant>NULL</constant> if no records exist.</para> <para>The <function>pws3_field_create()</function> function returns a pointer to the new header field data structure on success and <constant>NULL</constant> on failure.</para> <para>The <function>pws3_field_get_type()</function> function returns the field type of the header field structure.</para> <para>The <function>pws3_field_get_data_type()</function> function returns the data type of the header field structure.</para> <para>The <function>pws3_field_set_uuid()</function>, <function>pws3_field_set_text()</function>, <function>pws3_field_set_time()</function>, <function>pws3_field_set_uint8()</function>, <function>pws3_field_set_uint16()</function>, <function>pws3_field_set_uint32()</function>, and <function>pws3_field_set_bytes()</function> functions return <returnvalue>0</returnvalue> on success and <returnvalue>-1</returnvalue> on failure.</para> <para>The <function>pws3_field_get_time()</function>, <function>pws3_field_get_uint8()</function>, <function>pws3_field_get_uint16()</function>, and <function>pws3_field_get_uint32()</function> functions return a value of the type corresponding to the type of header field.</para> <para>The <function>pws3_field_get_uuid()</function> function returns a pointer to a UUID.</para> <para>The <function>pws3_field_get_text()</function> function returns a pointer to a string or <constant>NULL</constant> if no value has been set.</para> <para>The <function>pws3_record_create()</function> function returns a pointer to a record data structure if successful and <constant>NULL</constant> on failure.</para> <para>The <function>pws3_record_get_field()</function> function returns a pointer to the record field data structure of the requested type or <constant>NULL</constant> if such a field does not exist.</para> <para>The <function>pws3_record_remove_field()</function> function returns a pointer to the record field data structure which was removed from the record or <constant>NULL</constant> if such a field does not exist.</para> </refsect1> <refsect1> <title>Errors</title> <para>If the <function>pws3_file_read_mem()</function>, <function>pws3_file_read_stream()</function>, <function>pws3_file_write_mem()</function>, and <function>pws3_file_write_stream()</function> functions fail, an error code indicating the nature of the error may be obtained using the <function>pws3_file_get_error_code()</function> function and a pointer to a detailed error message may be retrieved using the <function>pws3_file_get_error_message()</function> function. The above functions may fail if:</para> <variablelist> <varlistentry> <term><errorname>PWS_ERR_GENERIC_ERROR</errorname></term> <listitem> <para>An unknown error occurred.</para> </listitem> </varlistentry> <varlistentry> <term><errorname>PWS_ERR_NO_MEMORY</errorname></term> <listitem> <para>There was not enough space to allocate memory.</para> </listitem> </varlistentry> <varlistentry> <term><errorname>PWS_ERR_IO_ERROR</errorname></term> <listitem> <para>An I/O error occurred.</para> </listitem> </varlistentry> <varlistentry> <term><errorname>PWS_ERR_TRUNCATED_FILE</errorname></term> <listitem> <para>The file appears to be truncated.</para> </listitem> </varlistentry> <varlistentry> <term><errorname>PWS_ERR_INVALID_CHECKSUM</errorname></term> <listitem> <para>The calculated checksum does not match the checksum of the file.</para> </listitem> </varlistentry> <varlistentry> <term><errorname>PWS_ERR_INVALID_RECORD</errorname></term> <listitem> <para>A record is invalid.</para> </listitem> </varlistentry> <varlistentry> <term><errorname>PWS_ERR_INVALID_HEADER</errorname></term> <listitem> <para>A header is invalid.</para> </listitem> </varlistentry> <varlistentry> <term><errorname>PWS_ERR_UNSUPPORTED_VERSION</errorname></term> <listitem> <para>The file format version is not supported.</para> </listitem> </varlistentry> </variablelist> </refsect1> <refsect1> <title>Examples</title> <example> <title>Creating a Password Safe file</title> <para>The following code creates a new Password Safe file and sets the save application header field:</para> <programlisting> <![CDATA[ #include <pws.h> /* ... */ struct pws3_file *file; struct pws3_field *application_field; /* ... */ /* initialize libpws */ if (pws_init() != 0) { /* handle error */ } /* ... */ /* create a new empty file structure */ file = pws3_file_create(); if (file == NULL) { /* handle error */ } /* create new empty save application field */ application_field = pws3_field_create(1, PWS3_HEADER_FIELD_SAVE_APPLICATION); if (application_field == NULL) { /* handle error */ } /* set the value of the field */ if (pws3_field_set_text(application_field, "PasswordManager 2.0") != 0) { /* handle error */ } /* set the header save application field in the file to the new field */ pws3_file_set_field(file, application_field); ]]> </programlisting> </example> <example> <title>Print the title of each record</title> <para>The following code loops over each record of an existing Password Safe file and prints the content of the title field if it exists:</para> <programlisting> <![CDATA[ #include <stdio.h> #include <pws.h> /* ... */ struct pws3_file *file; struct pws3_record *record; struct pws3_field *title_field; /* ... */ /* interate over each record */ for (record = pws3_file_first_record(file); record != NULL; record = pws3_file_next_record(file, record)) { /* retrieve title field */ title_field = pws3_record_get_field(record, PWS3_RECORD_FIELD_TITLE); /* print the title field or "No title" if it does not exitst */ printf("Title: %s\n", (title_field != NULL) ? pws3_record_field_get_text(PWS3_RECORD_FIELD_TITLE) : "No title"); } ]]> </programlisting> </example> <example> <title>Add a new record to a file</title> <para>The following code creates a new record with a password field, a title field, and a creation time field and adds it to an existing Password Safe file:</para> <programlisting> <![CDATA[ #include <time.h> #include <pws.h> /* ... */ struct pws3_file *file; struct pws3_record *record; struct pws3_field *password_field; struct pws3_field *title_field; struct pws3_field *ctime_field; time_t now; /* ... */ /* create new record */ record = pws3_record_create(); if (record == NULL) { /* handle error */ } /* create a password field */ password_field = pws3_record_field_create(PWS3_RECORD_FIELD_PASSWORD); if (password_field == NULL) { /* handle error */ } /* set the value of the password field to "PaSsWoRd" */ if (pws3_record_field_set_text(password_field, "PaSsWoRd") != 0) { /* handle error */ } /* set the password field of the record to the new field */ pws3_record_set_field(record, password_field); /* create a title field */ title_field = pws3_record_field_create(PWS3_RECORD_FIELD_TITLE); if (title_field == NULL) { /* handle error */ } /* set the value of the title field to "Foo Bar" */ if (pws3_record_field_set_text(title_field, "Foo Bar") != 0) { /* handle error */ } /* set the title field of the record to the new field */ pws3_record_set_field(record, title_field); /* create a new creation time field */ ctime_field = pws3_record_field_create(PWS3_RECORD_FIELD_CREATION_TIME); if (ctime_field == NULL) { /* handle error */ } /* set the value of the creation time field to the current time */ pws3_record_field_set_time(ctime_field, time(NULL)); /* set the creation time field of the record to the new field */ pws3_record_set_field(record, ctime_field); /* insert the new record into the file */ pws3_file_insert_record(file, record); ]]> </programlisting> </example> <example> <title>Reading a Password Safe file</title> <para>The following code opens a Password Safe file named <filename>example.pwsafe3</filename> and parses it:</para> <programlisting> <![CDATA[ #include <stdio.h> #include <pws.h> /* ... */ FILE *fp; struct pws3_file *file; /* ... */ /* initialize libpws */ if (pws_init() != 0) { /* handle error */ } /* ... */ /* create a new empty file structure */ file = pws3_file_create(); if (file == NULL) { /* handle error */ } /* open the file */ fp = fopen("example.pwsafe3", "r"); if (fp == NULL) { /* handle error */ } /* read and parse the file contents into the file structure */ if (pws3_file_read_stream(file, "PaSsWoRd", fp) != 0) { fprintf(stderr, "error: %s\n", pws3_file_get_error_message(file)); /* handle error */ } ]]> </programlisting> </example> <example> <title>Writing a Password Safe file</title> <para>The following code writes a Password Safe file to a file named <filename>example.pwsafe3</filename>:</para> <programlisting> <![CDATA[ #include <stdio.h> #include <pws.h> /* ... */ FILE *fp; struct pws3_file *file; /* ... */ fp = fopen("example.pwsafe3", "w"); if (fp == NULL) { /* handle error */ } if (pws3_file_write_stream(file, "FoOBaR", 10000, fp) != 0) { /* handle error */ } fflush(fp); fclose(fp); ]]> </programlisting> </example> </refsect1> <refsect1> <title>See Also</title> <para><citerefentry><refentrytitle>libpws</refentrytitle> <manvolnum>3</manvolnum></citerefentry>, <citerefentry><refentrytitle>pws_init</refentrytitle> <manvolnum>3</manvolnum></citerefentry>, <link xlink:href="https://pwsafe.org/"/></para> </refsect1> </refentry>