1.\" Automatically generated by Pod::Man 2.22 (Pod::Simple 3.07)
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62.\"
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124.\" ========================================================================
125.\"
126.IX Title "BIO_find_type 3"
127.TH BIO_find_type 3 "2010-11-16" "0.9.8p" "OpenSSL"
128.\" For nroff, turn off justification. Always turn off hyphenation; it makes
129.\" way too many mistakes in technical documents.
130.if n .ad l
131.nh
132.SH "NAME"
133BIO_find_type, BIO_next \- BIO chain traversal
134.SH "SYNOPSIS"
135.IX Header "SYNOPSIS"
136.Vb 1
137\& #include <openssl/bio.h>
138\&
139\& BIO * BIO_find_type(BIO *b,int bio_type);
140\& BIO * BIO_next(BIO *b);
141\&
142\& #define BIO_method_type(b) ((b)\->method\->type)
143\&
144\& #define BIO_TYPE_NONE 0
145\& #define BIO_TYPE_MEM (1|0x0400)
146\& #define BIO_TYPE_FILE (2|0x0400)
147\&
148\& #define BIO_TYPE_FD (4|0x0400|0x0100)
149\& #define BIO_TYPE_SOCKET (5|0x0400|0x0100)
150\& #define BIO_TYPE_NULL (6|0x0400)
151\& #define BIO_TYPE_SSL (7|0x0200)
152\& #define BIO_TYPE_MD (8|0x0200)
153\& #define BIO_TYPE_BUFFER (9|0x0200)
154\& #define BIO_TYPE_CIPHER (10|0x0200)
155\& #define BIO_TYPE_BASE64 (11|0x0200)
156\& #define BIO_TYPE_CONNECT (12|0x0400|0x0100)
157\& #define BIO_TYPE_ACCEPT (13|0x0400|0x0100)
158\& #define BIO_TYPE_PROXY_CLIENT (14|0x0200)
159\& #define BIO_TYPE_PROXY_SERVER (15|0x0200)
160\& #define BIO_TYPE_NBIO_TEST (16|0x0200)
161\& #define BIO_TYPE_NULL_FILTER (17|0x0200)
162\& #define BIO_TYPE_BER (18|0x0200)
163\& #define BIO_TYPE_BIO (19|0x0400)
164\&
165\& #define BIO_TYPE_DESCRIPTOR 0x0100
166\& #define BIO_TYPE_FILTER 0x0200
167\& #define BIO_TYPE_SOURCE_SINK 0x0400
168.Ve
169.SH "DESCRIPTION"
170.IX Header "DESCRIPTION"
171The \fIBIO_find_type()\fR searches for a \s-1BIO\s0 of a given type in a chain, starting
172at \s-1BIO\s0 \fBb\fR. If \fBtype\fR is a specific type (such as \s-1BIO_TYPE_MEM\s0) then a search
--- 18 unchanged lines hidden (view full) ---
191\&\fIBIO_method_type()\fR returns the type of the \s-1BIO\s0 \fBb\fR.
192.SH "NOTES"
193.IX Header "NOTES"
194\&\fIBIO_next()\fR was added to OpenSSL 0.9.6 to provide a 'clean' way to traverse a \s-1BIO\s0
195chain or find multiple matches using \fIBIO_find_type()\fR. Previous versions had to
196use:
197.PP
198.Vb 1
199\& next = bio\->next_bio;
200.Ve
201.SH "BUGS"
202.IX Header "BUGS"
203\&\fIBIO_find_type()\fR in OpenSSL 0.9.5a and earlier could not be safely passed a
204\&\s-1NULL\s0 pointer for the \fBb\fR argument.
205.SH "EXAMPLE"
206.IX Header "EXAMPLE"
207Traverse a chain looking for digest BIOs:
208.PP
209.Vb 2
210\& BIO *btmp;
211\& btmp = in_bio; /* in_bio is chain to search through */
212\&
213\& do {
214\& btmp = BIO_find_type(btmp, BIO_TYPE_MD);
215\& if(btmp == NULL) break; /* Not found */
216\& /* btmp is a digest BIO, do something with it ...*/
217\& ...
218\&
219\& btmp = BIO_next(btmp);
220\& } while(btmp);
221.Ve
222.SH "SEE ALSO"
223.IX Header "SEE ALSO"
224\&\s-1TBA\s0
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
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30. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
31. ds L" ""
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34. ds C' ""
35'br\}
36.el\{\
37. ds -- \|\(em\|
38. ds PI \(*p
39. ds L" ``
40. ds R" ''
41'br\}
42.\"
43.\" Escape single quotes in literal strings from groff's Unicode transform.
44.ie \n(.g .ds Aq \(aq
45.el .ds Aq '
46.\"
47.\" If the F register is turned on, we'll generate index entries on stderr for
48.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
49.\" entries marked with X<> in POD. Of course, you'll have to process the
50.\" output yourself in some meaningful fashion.
51.ie \nF \{\
52. de IX
53. tm Index:\\$1\t\\n%\t"\\$2"
54..
55. nr % 0
56. rr F
57.\}
58.el \{\
59. de IX
60..
61.\}
62.\"
63.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
64.\" Fear. Run. Save yourself. No user-serviceable parts.
65. \" fudge factors for nroff and troff
66.if n \{\
67. ds #H 0
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69. ds #F .3m
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122.\}
123.rm #[ #] #H #V #F C
124.\" ========================================================================
125.\"
126.IX Title "BIO_find_type 3"
127.TH BIO_find_type 3 "2010-11-16" "0.9.8p" "OpenSSL"
128.\" For nroff, turn off justification. Always turn off hyphenation; it makes
129.\" way too many mistakes in technical documents.
130.if n .ad l
131.nh
132.SH "NAME"
133BIO_find_type, BIO_next \- BIO chain traversal
134.SH "SYNOPSIS"
135.IX Header "SYNOPSIS"
136.Vb 1
137\& #include <openssl/bio.h>
138\&
139\& BIO * BIO_find_type(BIO *b,int bio_type);
140\& BIO * BIO_next(BIO *b);
141\&
142\& #define BIO_method_type(b) ((b)\->method\->type)
143\&
144\& #define BIO_TYPE_NONE 0
145\& #define BIO_TYPE_MEM (1|0x0400)
146\& #define BIO_TYPE_FILE (2|0x0400)
147\&
148\& #define BIO_TYPE_FD (4|0x0400|0x0100)
149\& #define BIO_TYPE_SOCKET (5|0x0400|0x0100)
150\& #define BIO_TYPE_NULL (6|0x0400)
151\& #define BIO_TYPE_SSL (7|0x0200)
152\& #define BIO_TYPE_MD (8|0x0200)
153\& #define BIO_TYPE_BUFFER (9|0x0200)
154\& #define BIO_TYPE_CIPHER (10|0x0200)
155\& #define BIO_TYPE_BASE64 (11|0x0200)
156\& #define BIO_TYPE_CONNECT (12|0x0400|0x0100)
157\& #define BIO_TYPE_ACCEPT (13|0x0400|0x0100)
158\& #define BIO_TYPE_PROXY_CLIENT (14|0x0200)
159\& #define BIO_TYPE_PROXY_SERVER (15|0x0200)
160\& #define BIO_TYPE_NBIO_TEST (16|0x0200)
161\& #define BIO_TYPE_NULL_FILTER (17|0x0200)
162\& #define BIO_TYPE_BER (18|0x0200)
163\& #define BIO_TYPE_BIO (19|0x0400)
164\&
165\& #define BIO_TYPE_DESCRIPTOR 0x0100
166\& #define BIO_TYPE_FILTER 0x0200
167\& #define BIO_TYPE_SOURCE_SINK 0x0400
168.Ve
169.SH "DESCRIPTION"
170.IX Header "DESCRIPTION"
171The \fIBIO_find_type()\fR searches for a \s-1BIO\s0 of a given type in a chain, starting
172at \s-1BIO\s0 \fBb\fR. If \fBtype\fR is a specific type (such as \s-1BIO_TYPE_MEM\s0) then a search
--- 18 unchanged lines hidden (view full) ---
191\&\fIBIO_method_type()\fR returns the type of the \s-1BIO\s0 \fBb\fR.
192.SH "NOTES"
193.IX Header "NOTES"
194\&\fIBIO_next()\fR was added to OpenSSL 0.9.6 to provide a 'clean' way to traverse a \s-1BIO\s0
195chain or find multiple matches using \fIBIO_find_type()\fR. Previous versions had to
196use:
197.PP
198.Vb 1
199\& next = bio\->next_bio;
200.Ve
201.SH "BUGS"
202.IX Header "BUGS"
203\&\fIBIO_find_type()\fR in OpenSSL 0.9.5a and earlier could not be safely passed a
204\&\s-1NULL\s0 pointer for the \fBb\fR argument.
205.SH "EXAMPLE"
206.IX Header "EXAMPLE"
207Traverse a chain looking for digest BIOs:
208.PP
209.Vb 2
210\& BIO *btmp;
211\& btmp = in_bio; /* in_bio is chain to search through */
212\&
213\& do {
214\& btmp = BIO_find_type(btmp, BIO_TYPE_MD);
215\& if(btmp == NULL) break; /* Not found */
216\& /* btmp is a digest BIO, do something with it ...*/
217\& ...
218\&
219\& btmp = BIO_next(btmp);
220\& } while(btmp);
221.Ve
222.SH "SEE ALSO"
223.IX Header "SEE ALSO"
224\&\s-1TBA\s0