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128.rm #[ #] #H #V #F C
129.\" ========================================================================
130.\"
131.IX Title "CMS_uncompress 3"
| 1.\" Automatically generated by Pod::Man 4.07 (Pod::Simple 3.35)
2.\"
3.\" Standard preamble:
4.\" ========================================================================
5.de Sp \" Vertical space (when we can't use .PP)
6.if t .sp .5v
7.if n .sp
8..
9.de Vb \" Begin verbatim text
10.ft CW
11.nf
12.ne \\$1
13..
14.de Ve \" End verbatim text
15.ft R
16.fi
17..
18.\" Set up some character translations and predefined strings. \*(-- will
19.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
20.\" double quote, and \*(R" will give a right double quote. \*(C+ will
21.\" give a nicer C++. Capital omega is used to do unbreakable dashes and
22.\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff,
23.\" nothing in troff, for use with C<>.
24.tr \(*W-
25.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
26.ie n \{\
27. ds -- \(*W-
28. ds PI pi
29. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
30. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
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45.\" Escape single quotes in literal strings from groff's Unicode transform.
46.ie \n(.g .ds Aq \(aq
47.el .ds Aq '
48.\"
49.\" If the F register is >0, we'll generate index entries on stderr for
50.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
51.\" entries marked with X<> in POD. Of course, you'll have to process the
52.\" output yourself in some meaningful fashion.
53.\"
54.\" Avoid warning from groff about undefined register 'F'.
55.de IX
56..
57.if !\nF .nr F 0
58.if \nF>0 \{\
59. de IX
60. tm Index:\\$1\t\\n%\t"\\$2"
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67.\"
68.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
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117\{\
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127.\}
128.rm #[ #] #H #V #F C
129.\" ========================================================================
130.\"
131.IX Title "CMS_uncompress 3"
|
133.\" For nroff, turn off justification. Always turn off hyphenation; it makes
134.\" way too many mistakes in technical documents.
135.if n .ad l
136.nh
137.SH "NAME"
138.Vb 1
139\& CMS_uncompress \- uncompress a CMS CompressedData structure
140.Ve
141.SH "SYNOPSIS"
142.IX Header "SYNOPSIS"
143.Vb 1
144\& #include <openssl/cms.h>
145\&
146\& int CMS_uncompress(CMS_ContentInfo *cms, BIO *dcont, BIO *out, unsigned int flags);
147.Ve
148.SH "DESCRIPTION"
149.IX Header "DESCRIPTION"
150\&\fICMS_uncompress()\fR extracts and uncompresses the content from a \s-1CMS\s0
151CompressedData structure \fBcms\fR. \fBdata\fR is a \s-1BIO\s0 to write the content to and
152\&\fBflags\fR is an optional set of flags.
153.PP
154The \fBdcont\fR parameter is used in the rare case where the compressed content
155is detached. It will normally be set to \s-1NULL.\s0
156.SH "NOTES"
157.IX Header "NOTES"
158The only currently supported compression algorithm is zlib: if the structure
159indicates the use of any other algorithm an error is returned.
160.PP
161If zlib support is not compiled into OpenSSL then \fICMS_uncompress()\fR will always
162return an error.
163.PP
164The following flags can be passed in the \fBflags\fR parameter.
165.PP
166If the \fB\s-1CMS_TEXT\s0\fR flag is set \s-1MIME\s0 headers for type \fBtext/plain\fR are deleted
167from the content. If the content is not of type \fBtext/plain\fR then an error is
168returned.
169.SH "RETURN VALUES"
170.IX Header "RETURN VALUES"
171\&\fICMS_uncompress()\fR returns either 1 for success or 0 for failure. The error can
172be obtained from \fIERR_get_error\fR\|(3)
173.SH "BUGS"
174.IX Header "BUGS"
175The lack of single pass processing and the need to hold all data in memory as
176mentioned in \fICMS_verify()\fR also applies to \fICMS_decompress()\fR.
177.SH "SEE ALSO"
178.IX Header "SEE ALSO"
179\&\fIERR_get_error\fR\|(3), \fICMS_compress\fR\|(3)
180.SH "HISTORY"
181.IX Header "HISTORY"
182\&\fICMS_uncompress()\fR was added to OpenSSL 0.9.8
| 133.\" For nroff, turn off justification. Always turn off hyphenation; it makes
134.\" way too many mistakes in technical documents.
135.if n .ad l
136.nh
137.SH "NAME"
138.Vb 1
139\& CMS_uncompress \- uncompress a CMS CompressedData structure
140.Ve
141.SH "SYNOPSIS"
142.IX Header "SYNOPSIS"
143.Vb 1
144\& #include <openssl/cms.h>
145\&
146\& int CMS_uncompress(CMS_ContentInfo *cms, BIO *dcont, BIO *out, unsigned int flags);
147.Ve
148.SH "DESCRIPTION"
149.IX Header "DESCRIPTION"
150\&\fICMS_uncompress()\fR extracts and uncompresses the content from a \s-1CMS\s0
151CompressedData structure \fBcms\fR. \fBdata\fR is a \s-1BIO\s0 to write the content to and
152\&\fBflags\fR is an optional set of flags.
153.PP
154The \fBdcont\fR parameter is used in the rare case where the compressed content
155is detached. It will normally be set to \s-1NULL.\s0
156.SH "NOTES"
157.IX Header "NOTES"
158The only currently supported compression algorithm is zlib: if the structure
159indicates the use of any other algorithm an error is returned.
160.PP
161If zlib support is not compiled into OpenSSL then \fICMS_uncompress()\fR will always
162return an error.
163.PP
164The following flags can be passed in the \fBflags\fR parameter.
165.PP
166If the \fB\s-1CMS_TEXT\s0\fR flag is set \s-1MIME\s0 headers for type \fBtext/plain\fR are deleted
167from the content. If the content is not of type \fBtext/plain\fR then an error is
168returned.
169.SH "RETURN VALUES"
170.IX Header "RETURN VALUES"
171\&\fICMS_uncompress()\fR returns either 1 for success or 0 for failure. The error can
172be obtained from \fIERR_get_error\fR\|(3)
173.SH "BUGS"
174.IX Header "BUGS"
175The lack of single pass processing and the need to hold all data in memory as
176mentioned in \fICMS_verify()\fR also applies to \fICMS_decompress()\fR.
177.SH "SEE ALSO"
178.IX Header "SEE ALSO"
179\&\fIERR_get_error\fR\|(3), \fICMS_compress\fR\|(3)
180.SH "HISTORY"
181.IX Header "HISTORY"
182\&\fICMS_uncompress()\fR was added to OpenSSL 0.9.8
|