晋太元中,武陵人捕鱼为业。缘溪行,忘路之远近。忽逢桃花林,夹岸数百步,中无杂树,芳草鲜美,落英缤纷。渔人甚异之,复前行,欲穷其林。 林尽水源,便得一山,山有小口,仿佛若有光。便舍船,从口入。初极狭,才通人。复行数十步,豁然开朗。土地平旷,屋舍俨然,有良田、美池、桑竹之属。阡陌交通,鸡犬相闻。其中往来种作,男女衣着,悉如外人。黄发垂髫,并怡然自乐。 见渔人,乃大惊,问所从来。具答之。便要还家,设酒杀鸡作食。村中闻有此人,咸来问讯。自云先世避秦时乱,率妻子邑人来此绝境,不复出焉,遂与外人间隔。问今是何世,乃不知有汉,无论魏晋。此人一一为具言所闻,皆叹惋。余人各复延至其家,皆出酒食。停数日,辞去。此中人语云:“不足为外人道也。”(间隔 一作:隔绝) 既出,得其船,便扶向路,处处志之。及郡下,诣太守,说如此。太守即遣人随其往,寻向所志,遂迷,不复得路。 南阳刘子骥,高尚士也,闻之,欣然规往。未果,寻病终。后遂无问津者。
| DIR:/opt/alt/openldap11/share/man/man3/ |
| Current File : //opt/alt/openldap11/share/man/man3/ldap_url_parse.3 |
.lf 1 stdin
.TH LDAP_URL 3 "2018/03/22" "OpenLDAP 2.4.46"
.\" $OpenLDAP$
.\" Copyright 1998-2018 The OpenLDAP Foundation All Rights Reserved.
.\" Copying restrictions apply. See COPYRIGHT/LICENSE.
.SH NAME
ldap_is_ldap_url, ldap_url_parse, ldap_free_urldesc \- LDAP Uniform Resource Locator routines
.SH LIBRARY
OpenLDAP LDAP (libldap, \-lldap)
.SH SYNOPSIS
.nf
.ft B
#include <ldap.h>
.LP
.ft B
int ldap_is_ldap_url( const char *url )
.LP
.ft B
int ldap_url_parse( const char *url, LDAPURLDesc **ludpp )
.LP
typedef struct ldap_url_desc {
char * lud_scheme; /* URI scheme */
char * lud_host; /* LDAP host to contact */
int lud_port; /* port on host */
char * lud_dn; /* base for search */
char ** lud_attrs; /* list of attributes */
int lud_scope; /* a LDAP_SCOPE_... value */
char * lud_filter; /* LDAP search filter */
char ** lud_exts; /* LDAP extensions */
int lud_crit_exts; /* true if any extension is critical */
/* may contain additional fields for internal use */
} LDAPURLDesc;
.LP
.ft B
void ldap_free_urldesc( LDAPURLDesc *ludp );
.SH DESCRIPTION
These routines support the use of LDAP URLs (Uniform Resource Locators)
as detailed in RFC 4516. LDAP URLs look like this:
.nf
\fBldap://\fP\fIhostport\fP\fB/\fP\fIdn\fP[\fB?\fP\fIattrs\fP[\fB?\fP\fIscope\fP[\fB?\fP\fIfilter\fP[\fB?\fP\fIexts\fP]]]]
where:
\fIhostport\fP is a host name with an optional ":portnumber"
\fIdn\fP is the search base
\fIattrs\fP is a comma separated list of attributes to request
\fIscope\fP is one of these three strings:
base one sub (default=base)
\fIfilter\fP is filter
\fIexts\fP are recognized set of LDAP and/or API extensions.
Example:
ldap://ldap.example.net/dc=example,dc=net?cn,sn?sub?(cn=*)
.fi
.LP
URLs that are wrapped in angle-brackets and/or preceded by "URL:" are also
tolerated. Alternative LDAP schemes such as ldaps:// and ldapi:// may be
parsed using the below routines as well.
.LP
.B ldap_is_ldap_url()
returns a non-zero value if \fIurl\fP looks like an LDAP URL (as
opposed to some other kind of URL). It can be used as a quick check
for an LDAP URL; the
.B ldap_url_parse()
routine should be used if a more thorough check is needed.
.LP
.B ldap_url_parse()
breaks down an LDAP URL passed in \fIurl\fP into its component pieces.
If successful, zero is returned, an LDAP URL description is
allocated, filled in, and \fIludpp\fP is set to point to it. If an
error occurs, a non-zero URL error code is returned.
.LP
.B ldap_free_urldesc()
should be called to free an LDAP URL description that was obtained from
a call to
.B ldap_url_parse().
.SH SEE ALSO
.nf
.BR ldap (3)
.BR "RFC 4516" " <http://www.rfc-editor.org/rfc/rfc4516.txt>"
.SH ACKNOWLEDGEMENTS
.fi
.lf 1 ./../Project
.\" Shared Project Acknowledgement Text
.B "OpenLDAP Software"
is developed and maintained by The OpenLDAP Project <http://www.openldap.org/>.
.B "OpenLDAP Software"
is derived from the University of Michigan LDAP 3.3 Release.
.lf 84 stdin
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