Edit File: BIO_ADDR.3
.\" Automatically generated by Pod::Man 4.11 (Pod::Simple 3.35) .\" .\" Standard preamble: .\" ======================================================================== .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .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. \*(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- .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" '' . ds C` . ds C' 'br\} .\" .\" Escape single quotes in literal strings from groff's Unicode transform. .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" .\" If the F register is >0, we'll generate index entries on stderr for .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index .\" entries marked with X<> in POD. Of course, you'll have to process the .\" output yourself in some meaningful fashion. .\" .\" Avoid warning from groff about undefined register 'F'. .de IX .. .nr rF 0 .if \n(.g .if rF .nr rF 1 .if (\n(rF:(\n(.g==0)) \{\ . if \nF \{\ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{\ . nr % 0 . nr F 2 . \} . \} .\} .rr rF .\" .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). .\" Fear. Run. Save yourself. No user-serviceable parts. . \" fudge factors for nroff and troff .if n \{\ . ds #H 0 . ds #V .8m . ds #F .3m . ds #[ \f1 . ds #] \fP .\} .if t \{\ . ds #H ((1u-(\\\\n(.fu%2u))*.13m) . ds #V .6m . ds #F 0 . ds #[ \& . ds #] \& .\} . \" simple accents for nroff and troff .if n \{\ . ds ' \& . ds ` \& . ds ^ \& . ds , \& . ds ~ ~ . ds / .\} .if t \{\ . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' .\} . \" troff and (daisy-wheel) nroff accents .ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' .ds 8 \h'\*(#H'\(*b\h'-\*(#H' .ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] .ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' .ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' .ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] .ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] .ds ae a\h'-(\w'a'u*4/10)'e .ds Ae A\h'-(\w'A'u*4/10)'E . \" corrections for vroff .if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' .if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' . \" for low resolution devices (crt and lpr) .if \n(.H>23 .if \n(.V>19 \ \{\ . ds : e . ds 8 ss . ds o a . ds d- d\h'-1'\(ga . ds D- D\h'-1'\(hy . ds th \o'bp' . ds Th \o'LP' . ds ae ae . ds Ae AE .\} .rm #[ #] #H #V #F C .\" ======================================================================== .\" .IX Title "BIO_ADDR 3" .TH BIO_ADDR 3 "2023-09-11" "1.1.1w" "OpenSSL" .\" For nroff, turn off justification. Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" BIO_ADDR, BIO_ADDR_new, BIO_ADDR_clear, BIO_ADDR_free, BIO_ADDR_rawmake, BIO_ADDR_family, BIO_ADDR_rawaddress, BIO_ADDR_rawport, BIO_ADDR_hostname_string, BIO_ADDR_service_string, BIO_ADDR_path_string \- BIO_ADDR routines .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 2 \& #include <sys/types.h> \& #include <openssl/bio.h> \& \& typedef union bio_addr_st BIO_ADDR; \& \& BIO_ADDR *BIO_ADDR_new(void); \& void BIO_ADDR_free(BIO_ADDR *); \& void BIO_ADDR_clear(BIO_ADDR *ap); \& int BIO_ADDR_rawmake(BIO_ADDR *ap, int family, \& const void *where, size_t wherelen, unsigned short port); \& int BIO_ADDR_family(const BIO_ADDR *ap); \& int BIO_ADDR_rawaddress(const BIO_ADDR *ap, void *p, size_t *l); \& unsigned short BIO_ADDR_rawport(const BIO_ADDR *ap); \& char *BIO_ADDR_hostname_string(const BIO_ADDR *ap, int numeric); \& char *BIO_ADDR_service_string(const BIO_ADDR *ap, int numeric); \& char *BIO_ADDR_path_string(const BIO_ADDR *ap); .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" The \fB\s-1BIO_ADDR\s0\fR type is a wrapper around all types of socket addresses that OpenSSL deals with, currently transparently supporting \s-1AF_INET, AF_INET6\s0 and \s-1AF_UNIX\s0 according to what's available on the platform at hand. .PP \&\fBBIO_ADDR_new()\fR creates a new unfilled \fB\s-1BIO_ADDR\s0\fR, to be used with routines that will fill it with information, such as \&\fBBIO_accept_ex()\fR. .PP \&\fBBIO_ADDR_free()\fR frees a \fB\s-1BIO_ADDR\s0\fR created with \fBBIO_ADDR_new()\fR. .PP \&\fBBIO_ADDR_clear()\fR clears any data held within the provided \fB\s-1BIO_ADDR\s0\fR and sets it back to an uninitialised state. .PP \&\fBBIO_ADDR_rawmake()\fR takes a protocol \fBfamily\fR, a byte array of size \fBwherelen\fR with an address in network byte order pointed at by \fBwhere\fR and a port number in network byte order in \fBport\fR (except for the \fB\s-1AF_UNIX\s0\fR protocol family, where \fBport\fR is meaningless and therefore ignored) and populates the given \fB\s-1BIO_ADDR\s0\fR with them. In case this creates a \fB\s-1AF_UNIX\s0\fR \fB\s-1BIO_ADDR\s0\fR, \fBwherelen\fR is expected to be the length of the path string (not including the terminating \&\s-1NUL,\s0 such as the result of a call to \fBstrlen()\fR). \&\fIRead on about the addresses in \*(L"\s-1RAW ADDRESSES\*(R"\s0 below\fR. .PP \&\fBBIO_ADDR_family()\fR returns the protocol family of the given \&\fB\s-1BIO_ADDR\s0\fR. The possible non-error results are one of the constants \s-1AF_INET, AF_INET6\s0 and \s-1AF_UNIX.\s0 It will also return \s-1AF_UNSPEC\s0 if the \&\s-1BIO_ADDR\s0 has not been initialised. .PP \&\fBBIO_ADDR_rawaddress()\fR will write the raw address of the given \&\fB\s-1BIO_ADDR\s0\fR in the area pointed at by \fBp\fR if \fBp\fR is non-NULL, and will set \fB*l\fR to be the amount of bytes the raw address takes up if \fBl\fR is non-NULL. A technique to only find out the size of the address is a call with \fBp\fR set to \fB\s-1NULL\s0\fR. The raw address will be in network byte order, most significant byte first. In case this is a \fB\s-1AF_UNIX\s0\fR \fB\s-1BIO_ADDR\s0\fR, \fBl\fR gets the length of the path string (not including the terminating \s-1NUL,\s0 such as the result of a call to \fBstrlen()\fR). \&\fIRead on about the addresses in \*(L"\s-1RAW ADDRESSES\*(R"\s0 below\fR. .PP \&\fBBIO_ADDR_rawport()\fR returns the raw port of the given \fB\s-1BIO_ADDR\s0\fR. The raw port will be in network byte order. .PP \&\fBBIO_ADDR_hostname_string()\fR returns a character string with the hostname of the given \fB\s-1BIO_ADDR\s0\fR. If \fBnumeric\fR is 1, the string will contain the numerical form of the address. This only works for \&\fB\s-1BIO_ADDR\s0\fR of the protocol families \s-1AF_INET\s0 and \s-1AF_INET6.\s0 The returned string has been allocated on the heap and must be freed with \fBOPENSSL_free()\fR. .PP \&\fBBIO_ADDR_service_string()\fR returns a character string with the service name of the port of the given \fB\s-1BIO_ADDR\s0\fR. If \fBnumeric\fR is 1, the string will contain the port number. This only works for \fB\s-1BIO_ADDR\s0\fR of the protocol families \s-1AF_INET\s0 and \s-1AF_INET6.\s0 The returned string has been allocated on the heap and must be freed with \fBOPENSSL_free()\fR. .PP \&\fBBIO_ADDR_path_string()\fR returns a character string with the path of the given \fB\s-1BIO_ADDR\s0\fR. This only works for \fB\s-1BIO_ADDR\s0\fR of the protocol family \s-1AF_UNIX.\s0 The returned string has been allocated on the heap and must be freed with \fBOPENSSL_free()\fR. .SH "RAW ADDRESSES" .IX Header "RAW ADDRESSES" Both \fBBIO_ADDR_rawmake()\fR and \fBBIO_ADDR_rawaddress()\fR take a pointer to a network byte order address of a specific site. Internally, those are treated as a pointer to \fBstruct in_addr\fR (for \fB\s-1AF_INET\s0\fR), \fBstruct in6_addr\fR (for \fB\s-1AF_INET6\s0\fR) or \fBchar *\fR (for \fB\s-1AF_UNIX\s0\fR), all depending on the protocol family the address is for. .SH "RETURN VALUES" .IX Header "RETURN VALUES" The string producing functions \fBBIO_ADDR_hostname_string()\fR, \&\fBBIO_ADDR_service_string()\fR and \fBBIO_ADDR_path_string()\fR will return \fB\s-1NULL\s0\fR on error and leave an error indication on the OpenSSL error stack. .PP All other functions described here return 0 or \fB\s-1NULL\s0\fR when the information they should return isn't available. .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fBBIO_connect\fR\|(3), \fBBIO_s_connect\fR\|(3) .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2016\-2020 The OpenSSL Project Authors. All Rights Reserved. .PP Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.