1.\" Copyright (c) 2014 Michihiro NAKAJIMA
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25.\" $FreeBSD$
26.\"
27.Dd September 14, 2014
28.Dt ARCHIVE_READ_ADD_PASSPHRASE 3
29.Os
30.Sh NAME
31.Nm archive_read_add_passphrase ,
32.Nm archive_read_set_passphrase_callback
33.Nd functions for reading encrypted archives
34.Sh LIBRARY
35Streaming Archive Library (libarchive, -larchive)
36.Sh SYNOPSIS
37.In archive.h
38.Ft int
39.Fo archive_read_add_passphrase
40.Fa "struct archive *"
41.Fa "const char *passphrase"
42.Fc
43.Ft int
44.Fo archive_read_set_passphrase_callback
45.Fa "struct archive *"
46.Fa "void *client_data"
47.Fa "archive_passphrase_callback *"
48.Fc
49.Sh DESCRIPTION
50.Bl -tag -width indent
51.It Fn archive_read_add_passphrase
52Register passphrases for reading an encryption archive.
53If
54.Ar passphrase
55is
56.Dv NULL
57or empty, this function will do nothing and
58.Cm ARCHIVE_FAILED
59will be returned.
60Otherwise,
61.Cm ARCHIVE_OK
62will be returned.
63.It Fn archive_read_set_passphrase_callback
64Register a callback function that will be invoked to get a passphrase
65for decryption after trying all the passphrases registered by the
66.Fn archive_read_add_passphrase
67function failed.
68.El
69.\" .Sh ERRORS
70.Sh SEE ALSO
71.Xr tar 1 ,
72.Xr archive_read 3 ,
73.Xr archive_read_set_options 3 ,
74.Xr libarchive 3
75