Commit manual pages after running 'man-update' and add new manual pages.
[dragonfly.git] / secure / lib / libcrypto / man / SMIME_read_PKCS7.3
CommitLineData
74dab6c2
JR
1.rn '' }`
2''' $RCSfile$$Revision$$Date$
3'''
4''' $Log$
5'''
6.de Sh
984263bc
MD
7.br
8.if t .Sp
9.ne 5
10.PP
11\fB\\$1\fR
12.PP
13..
74dab6c2 14.de Sp
984263bc
MD
15.if t .sp .5v
16.if n .sp
17..
74dab6c2 18.de Ip
984263bc
MD
19.br
20.ie \\n(.$>=3 .ne \\$3
21.el .ne 3
22.IP "\\$1" \\$2
23..
74dab6c2 24.de Vb
984263bc
MD
25.ft CW
26.nf
27.ne \\$1
28..
74dab6c2 29.de Ve
984263bc
MD
30.ft R
31
32.fi
33..
74dab6c2
JR
34'''
35'''
36''' Set up \*(-- to give an unbreakable dash;
37''' string Tr holds user defined translation string.
38''' Bell System Logo is used as a dummy character.
39'''
984263bc 40.tr \(*W-|\(bv\*(Tr
984263bc 41.ie n \{\
74dab6c2
JR
42.ds -- \(*W-
43.ds PI pi
44.if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
45.if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
46.ds L" ""
47.ds R" ""
48''' \*(M", \*(S", \*(N" and \*(T" are the equivalent of
49''' \*(L" and \*(R", except that they are used on ".xx" lines,
50''' such as .IP and .SH, which do another additional levels of
51''' double-quote interpretation
52.ds M" """
53.ds S" """
54.ds N" """""
55.ds T" """""
56.ds L' '
57.ds R' '
58.ds M' '
59.ds S' '
60.ds N' '
61.ds T' '
984263bc
MD
62'br\}
63.el\{\
74dab6c2
JR
64.ds -- \(em\|
65.tr \*(Tr
66.ds L" ``
67.ds R" ''
68.ds M" ``
69.ds S" ''
70.ds N" ``
71.ds T" ''
72.ds L' `
73.ds R' '
74.ds M' `
75.ds S' '
76.ds N' `
77.ds T' '
78.ds PI \(*p
984263bc 79'br\}
74dab6c2
JR
80.\" If the F register is turned on, we'll generate
81.\" index entries out stderr for the following things:
82.\" TH Title
83.\" SH Header
84.\" Sh Subsection
85.\" Ip Item
86.\" X<> Xref (embedded
87.\" Of course, you have to process the output yourself
88.\" in some meaninful fashion.
89.if \nF \{
90.de IX
91.tm Index:\\$1\t\\n%\t"\\$2"
984263bc 92..
74dab6c2
JR
93.nr % 0
94.rr F
984263bc 95.\}
74dab6c2
JR
96.TH SMIME_read_PKCS7 3 "0.9.7d" "2/Sep/2004" "OpenSSL"
97.UC
98.if n .hy 0
984263bc 99.if n .na
74dab6c2
JR
100.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
101.de CQ \" put $1 in typewriter font
102.ft CW
103'if n "\c
104'if t \\&\\$1\c
105'if n \\&\\$1\c
106'if n \&"
107\\&\\$2 \\$3 \\$4 \\$5 \\$6 \\$7
108'.ft R
109..
110.\" @(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2
111. \" AM - accent mark definitions
984263bc 112.bd B 3
74dab6c2 113. \" fudge factors for nroff and troff
984263bc 114.if n \{\
74dab6c2
JR
115. ds #H 0
116. ds #V .8m
117. ds #F .3m
118. ds #[ \f1
119. ds #] \fP
984263bc
MD
120.\}
121.if t \{\
74dab6c2
JR
122. ds #H ((1u-(\\\\n(.fu%2u))*.13m)
123. ds #V .6m
124. ds #F 0
125. ds #[ \&
126. ds #] \&
984263bc 127.\}
74dab6c2 128. \" simple accents for nroff and troff
984263bc 129.if n \{\
74dab6c2
JR
130. ds ' \&
131. ds ` \&
132. ds ^ \&
133. ds , \&
134. ds ~ ~
135. ds ? ?
136. ds ! !
137. ds /
138. ds q
984263bc
MD
139.\}
140.if t \{\
74dab6c2
JR
141. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
142. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
143. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
144. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
145. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
146. ds ? \s-2c\h'-\w'c'u*7/10'\u\h'\*(#H'\zi\d\s+2\h'\w'c'u*8/10'
147. ds ! \s-2\(or\s+2\h'-\w'\(or'u'\v'-.8m'.\v'.8m'
148. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
149. ds q o\h'-\w'o'u*8/10'\s-4\v'.4m'\z\(*i\v'-.4m'\s+4\h'\w'o'u*8/10'
984263bc 150.\}
74dab6c2 151. \" troff and (daisy-wheel) nroff accents
984263bc
MD
152.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
153.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
74dab6c2
JR
154.ds v \\k:\h'-(\\n(.wu*9/10-\*(#H)'\v'-\*(#V'\*(#[\s-4v\s0\v'\*(#V'\h'|\\n:u'\*(#]
155.ds _ \\k:\h'-(\\n(.wu*9/10-\*(#H+(\*(#F*2/3))'\v'-.4m'\z\(hy\v'.4m'\h'|\\n:u'
156.ds . \\k:\h'-(\\n(.wu*8/10)'\v'\*(#V*4/10'\z.\v'-\*(#V*4/10'\h'|\\n:u'
157.ds 3 \*(#[\v'.2m'\s-2\&3\s0\v'-.2m'\*(#]
984263bc
MD
158.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
159.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
160.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
161.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
162.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
163.ds ae a\h'-(\w'a'u*4/10)'e
164.ds Ae A\h'-(\w'A'u*4/10)'E
74dab6c2
JR
165.ds oe o\h'-(\w'o'u*4/10)'e
166.ds Oe O\h'-(\w'O'u*4/10)'E
167. \" corrections for vroff
984263bc
MD
168.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
169.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
74dab6c2 170. \" for low resolution devices (crt and lpr)
984263bc
MD
171.if \n(.H>23 .if \n(.V>19 \
172\{\
74dab6c2
JR
173. ds : e
174. ds 8 ss
175. ds v \h'-1'\o'\(aa\(ga'
176. ds _ \h'-1'^
177. ds . \h'-1'.
178. ds 3 3
179. ds o a
180. ds d- d\h'-1'\(ga
181. ds D- D\h'-1'\(hy
182. ds th \o'bp'
183. ds Th \o'LP'
184. ds ae ae
185. ds Ae AE
186. ds oe oe
187. ds Oe OE
984263bc
MD
188.\}
189.rm #[ #] #H #V #F C
984263bc
MD
190.SH "NAME"
191SMIME_read_PKCS7 \- parse S/MIME message.
192.SH "SYNOPSIS"
74dab6c2 193PKCS7 *\fISMIME_read_PKCS7\fR\|(BIO *in, BIO **bcont);
984263bc 194.SH "DESCRIPTION"
74dab6c2 195\fISMIME_read_PKCS7()\fR parses a message in S/MIME format.
984263bc 196.PP
74dab6c2 197\fBin\fR is a BIO to read the message from.
984263bc
MD
198.PP
199If cleartext signing is used then the content is saved in
200a memory bio which is written to \fB*bcont\fR, otherwise
74dab6c2 201\fB*bcont\fR is set to \fBNULL\fR.
984263bc 202.PP
74dab6c2 203The parsed PKCS#7 structure is returned or \fBNULL\fR if an
984263bc
MD
204error occurred.
205.SH "NOTES"
74dab6c2 206If \fB*bcont\fR is not \fBNULL\fR then the message is clear text
984263bc 207signed. \fB*bcont\fR can then be passed to \fIPKCS7_verify()\fR with
74dab6c2 208the \fBPKCS7_DETACHED\fR flag set.
984263bc
MD
209.PP
210Otherwise the type of the returned structure can be determined
211using \fIPKCS7_type()\fR.
212.PP
74dab6c2
JR
213To support future functionality if \fBbcont\fR is not \fBNULL\fR
214\fB*bcont\fR should be initialized to \fBNULL\fR. For example:
984263bc
MD
215.PP
216.Vb 2
217\& BIO *cont = NULL;
218\& PKCS7 *p7;
219.Ve
220.Vb 1
221\& p7 = SMIME_read_PKCS7(in, &cont);
222.Ve
223.SH "BUGS"
74dab6c2 224The MIME parser used by \fISMIME_read_PKCS7()\fR is somewhat primitive.
984263bc
MD
225While it will handle most S/MIME messages more complex compound
226formats may not work.
227.PP
74dab6c2 228The parser assumes that the PKCS7 structure is always base64
984263bc
MD
229encoded and will not handle the case where it is in binary format
230or uses quoted printable format.
231.PP
74dab6c2 232The use of a memory BIO to hold the signed content limits the size
984263bc
MD
233of message which can be processed due to memory restraints: a
234streaming single pass option should be available.
235.SH "RETURN VALUES"
74dab6c2 236\fISMIME_read_PKCS7()\fR returns a valid \fBPKCS7\fR structure or \fBNULL\fR
984263bc
MD
237is an error occurred. The error can be obtained from \fIERR_get_error\fR\|(3).
238.SH "SEE ALSO"
984263bc
MD
239ERR_get_error(3), PKCS7_type(3)
240SMIME_read_PKCS7(3), PKCS7_sign(3),
241PKCS7_verify(3), PKCS7_encrypt(3)
242PKCS7_decrypt(3)
243.SH "HISTORY"
74dab6c2
JR
244\fISMIME_read_PKCS7()\fR was added to OpenSSL 0.9.5
245
246.rn }` ''
247.IX Title "SMIME_read_PKCS7 3"
248.IX Name "SMIME_read_PKCS7 - parse S/MIME message."
249
250.IX Header "NAME"
251
252.IX Header "SYNOPSIS"
253
254.IX Header "DESCRIPTION"
255
256.IX Header "NOTES"
257
258.IX Header "BUGS"
259
260.IX Header "RETURN VALUES"
261
262.IX Header "SEE ALSO"
263
984263bc 264.IX Header "HISTORY"
74dab6c2 265