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Diffstat (limited to 'secure/lib/libcrypto/man/BIO_find_type.3')
-rw-r--r-- | secure/lib/libcrypto/man/BIO_find_type.3 | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/secure/lib/libcrypto/man/BIO_find_type.3 b/secure/lib/libcrypto/man/BIO_find_type.3 new file mode 100644 index 0000000..cbae24e --- /dev/null +++ b/secure/lib/libcrypto/man/BIO_find_type.3 @@ -0,0 +1,242 @@ +.\" Automatically generated by Pod::Man version 1.15 +.\" Thu May 9 13:15:39 2002 +.\" +.\" Standard preamble: +.\" ====================================================================== +.de Sh \" Subsection heading +.br +.if t .Sp +.ne 5 +.PP +\fB\\$1\fR +.PP +.. +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Ip \" List item +.br +.ie \\n(.$>=3 .ne \\$3 +.el .ne 3 +.IP "\\$1" \\$2 +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R + +.fi +.. +.\" Set up some character translations and predefined strings. \*(-- will +.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left +.\" double quote, and \*(R" will give a right double quote. | will give a +.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used +.\" to do unbreakable dashes and therefore won't be available. \*(C` and +.\" \*(C' expand to `' in nroff, nothing in troff, for use with C<> +.tr \(*W-|\(bv\*(Tr +.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' +.ie n \{\ +. ds -- \(*W- +. ds PI pi +. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch +. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch +. ds L" "" +. ds R" "" +. ds C` "" +. ds C' "" +'br\} +.el\{\ +. ds -- \|\(em\| +. ds PI \(*p +. ds L" `` +. ds R" '' +'br\} +.\" +.\" If the F register is turned on, we'll generate index entries on stderr +.\" for titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and +.\" index entries marked with X<> in POD. Of course, you'll have to process +.\" the output yourself in some meaningful fashion. +.if \nF \{\ +. de IX +. tm Index:\\$1\t\\n%\t"\\$2" +.. +. nr % 0 +. rr F +.\} +.\" +.\" For nroff, turn off justification. Always turn off hyphenation; it +.\" makes way too many mistakes in technical documents. +.hy 0 +.if n .na +.\" +.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). +.\" Fear. Run. Save yourself. 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If \fBtype\fR is a specific type (such as \s-1BIO_TYPE_MEM\s0) then a search +is made for a \s-1BIO\s0 of that type. If \fBtype\fR is a general type (such as +\&\fB\s-1BIO_TYPE_SOURCE_SINK\s0\fR) then the next matching \s-1BIO\s0 of the given general type is +searched for. \fIBIO_find_type()\fR returns the next matching \s-1BIO\s0 or \s-1NULL\s0 if none is +found. +.PP +Note: not all the \fBBIO_TYPE_*\fR types above have corresponding \s-1BIO\s0 implementations. +.PP +\&\fIBIO_next()\fR returns the next \s-1BIO\s0 in a chain. It can be used to traverse all BIOs +in a chain or used in conjunction with \fIBIO_find_type()\fR to find all BIOs of a +certain type. +.PP +\&\fIBIO_method_type()\fR returns the type of a \s-1BIO\s0. +.SH "RETURN VALUES" +.IX Header "RETURN VALUES" +\&\fIBIO_find_type()\fR returns a matching \s-1BIO\s0 or \s-1NULL\s0 for no match. +.PP +\&\fIBIO_next()\fR returns the next \s-1BIO\s0 in a chain. +.PP +\&\fIBIO_method_type()\fR returns the type of the \s-1BIO\s0 \fBb\fR. +.SH "NOTES" +.IX Header "NOTES" +\&\fIBIO_next()\fR was added to OpenSSL 0.9.6 to provide a 'clean' way to traverse a \s-1BIO\s0 +chain or find multiple matches using \fIBIO_find_type()\fR. Previous versions had to +use: +.PP +.Vb 1 +\& next = bio->next_bio; +.Ve +.SH "BUGS" +.IX Header "BUGS" +\&\fIBIO_find_type()\fR in OpenSSL 0.9.5a and earlier could not be safely passed a +\&\s-1NULL\s0 pointer for the \fBb\fR argument. +.SH "EXAMPLE" +.IX Header "EXAMPLE" +Traverse a chain looking for digest BIOs: +.PP +.Vb 2 +\& BIO *btmp; +\& btmp = in_bio; /* in_bio is chain to search through */ +.Ve +.Vb 5 +\& do { +\& btmp = BIO_find_type(btmp, BIO_TYPE_MD); +\& if(btmp == NULL) break; /* Not found */ +\& /* btmp is a digest BIO, do something with it ...*/ +\& ... +.Ve +.Vb 2 +\& btmp = BIO_next(btmp); +\& } while(btmp); +.Ve +.SH "SEE ALSO" +.IX Header "SEE ALSO" +\&\s-1TBA\s0 |