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b5713887ae
curl/lib/ldap.c
Daniel Stenberg d7934b8bd4 curl_multi_fdset: correct fdset with FTP PORT use 
After a PORT has been issued, and the multi handle would switch to the
CURLM_STATE_DO_MORE state (which is unique for FTP), libcurl would
return the wrong fdset to wait for when curl_multi_fdset() is
called. The code would blindly assume that it was waiting for a connect
of the second connection, while that isn't true immediately after the
PORT command.

Also, the function multi.c:domore_getsock() was highly FTP-centric and
therefore ugly to keep in protocol-agnostic code. I solved this problem
by introducing a new function pointer in the Curl_handler struct called
domore_getsock() which is only called during the DOMORE state for
protocols that set that pointer.

The new ftp.c:ftp_domore_getsock() function now returns fdset info about
the control connection's command/response handling while such a state is
in use, and goes over to waiting for a writable second connection first
once the commands are done.

The original problem could be seen by running test 525 and checking the
time stamps in the FTP server log. I can verify that this fix at least
fixes this problem.

Bug: http://curl.haxx.se/mail/lib-2011-10/0250.html
Reported by: Gokhan Sengun
2011-10-21 23:36:54 +02:00

730 lines
21 KiB
C
Raw Blame History

/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "setup.h"
#if !defined(CURL_DISABLE_LDAP) && !defined(USE_OPENLDAP)
/*
* Notice that USE_OPENLDAP is only a source code selection switch. When
* libcurl is built with USE_OPENLDAP defined the libcurl source code that
* gets compiled is the code from openldap.c, otherwise the code that gets
* compiled is the code from ldap.c.
*
* When USE_OPENLDAP is defined a recent version of the OpenLDAP library
* might be required for compilation and runtime. In order to use ancient
* OpenLDAP library versions, USE_OPENLDAP shall not be defined.
*/
#ifdef CURL_LDAP_WIN /* Use Windows LDAP implementation. */
# include <winldap.h>
# ifndef LDAP_VENDOR_NAME
# error Your Platform SDK is NOT sufficient for LDAP support! \
Update your Platform SDK, or disable LDAP support!
# else
# include <winber.h>
# endif
#else
# define LDAP_DEPRECATED 1 /* Be sure ldap_init() is defined. */
# ifdef HAVE_LBER_H
# include <lber.h>
# endif
# include <ldap.h>
# if (defined(HAVE_LDAP_SSL) && defined(HAVE_LDAP_SSL_H))
# include <ldap_ssl.h>
# endif /* HAVE_LDAP_SSL && HAVE_LDAP_SSL_H */
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include "urldata.h"
#include <curl/curl.h>
#include "sendf.h"
#include "escape.h"
#include "progress.h"
#include "transfer.h"
#include "strequal.h"
#include "strtok.h"
#include "curl_ldap.h"
#include "curl_memory.h"
#include "curl_base64.h"
#include "rawstr.h"
#define _MPRINTF_REPLACE /* use our functions only */
#include <curl/mprintf.h>
#include "memdebug.h"
#ifndef HAVE_LDAP_URL_PARSE
/* Use our own implementation. */
typedef struct {
char *lud_host;
int lud_port;
char *lud_dn;
char **lud_attrs;
int lud_scope;
char *lud_filter;
char **lud_exts;
} CURL_LDAPURLDesc;
#undef LDAPURLDesc
#define LDAPURLDesc CURL_LDAPURLDesc
static int _ldap_url_parse (const struct connectdata *conn,
LDAPURLDesc **ludp);
static void _ldap_free_urldesc (LDAPURLDesc *ludp);
#undef ldap_free_urldesc
#define ldap_free_urldesc _ldap_free_urldesc
#endif
#ifdef DEBUG_LDAP
#define LDAP_TRACE(x) do { \
_ldap_trace ("%u: ", __LINE__); \
_ldap_trace x; \
} WHILE_FALSE
static void _ldap_trace (const char *fmt, ...);
#else
#define LDAP_TRACE(x) Curl_nop_stmt
#endif
static CURLcode Curl_ldap(struct connectdata *conn, bool *done);
/*
* LDAP protocol handler.
*/
const struct Curl_handler Curl_handler_ldap = {
"LDAP", /* scheme */
ZERO_NULL, /* setup_connection */
Curl_ldap, /* do_it */
ZERO_NULL, /* done */
ZERO_NULL, /* do_more */
ZERO_NULL, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
ZERO_NULL, /* disconnect */
ZERO_NULL, /* readwrite */
PORT_LDAP, /* defport */
CURLPROTO_LDAP, /* protocol */
PROTOPT_NONE /* flags */
};
#ifdef HAVE_LDAP_SSL
/*
* LDAPS protocol handler.
*/
const struct Curl_handler Curl_handler_ldaps = {
"LDAPS", /* scheme */
ZERO_NULL, /* setup_connection */
Curl_ldap, /* do_it */
ZERO_NULL, /* done */
ZERO_NULL, /* do_more */
ZERO_NULL, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
ZERO_NULL, /* disconnect */
ZERO_NULL, /* readwrite */
PORT_LDAPS, /* defport */
CURLPROTO_LDAP | CURLPROTO_LDAPS, /* protocol */
PROTOPT_SSL /* flags */
};
#endif
static CURLcode Curl_ldap(struct connectdata *conn, bool *done)
{
CURLcode status = CURLE_OK;
int rc = 0;
LDAP *server = NULL;
LDAPURLDesc *ludp = NULL;
LDAPMessage *result = NULL;
LDAPMessage *entryIterator;
int num = 0;
struct SessionHandle *data=conn->data;
int ldap_proto = LDAP_VERSION3;
int ldap_ssl = 0;
char *val_b64 = NULL;
size_t val_b64_sz = 0;
curl_off_t dlsize = 0;
#ifdef LDAP_OPT_NETWORK_TIMEOUT
struct timeval ldap_timeout = {10,0}; /* 10 sec connection/search timeout */
#endif
*done = TRUE; /* unconditionally */
infof(data, "LDAP local: LDAP Vendor = %s ; LDAP Version = %d\n",
LDAP_VENDOR_NAME, LDAP_VENDOR_VERSION);
infof(data, "LDAP local: %s\n", data->change.url);
#ifdef HAVE_LDAP_URL_PARSE
rc = ldap_url_parse(data->change.url, &ludp);
#else
rc = _ldap_url_parse(conn, &ludp);
#endif
if(rc != 0) {
failf(data, "LDAP local: %s", ldap_err2string(rc));
status = CURLE_LDAP_INVALID_URL;
goto quit;
}
/* Get the URL scheme ( either ldap or ldaps ) */
if(conn->given->flags & PROTOPT_SSL)
ldap_ssl = 1;
infof(data, "LDAP local: trying to establish %s connection\n",
ldap_ssl ? "encrypted" : "cleartext");
#ifdef LDAP_OPT_NETWORK_TIMEOUT
ldap_set_option(NULL, LDAP_OPT_NETWORK_TIMEOUT, &ldap_timeout);
#endif
ldap_set_option(NULL, LDAP_OPT_PROTOCOL_VERSION, &ldap_proto);
if(ldap_ssl) {
#ifdef HAVE_LDAP_SSL
#ifdef CURL_LDAP_WIN
/* Win32 LDAP SDK doesn't support insecure mode without CA! */
server = ldap_sslinit(conn->host.name, (int)conn->port, 1);
ldap_set_option(server, LDAP_OPT_SSL, LDAP_OPT_ON);
#else
int ldap_option;
char* ldap_ca = data->set.str[STRING_SSL_CAFILE];
#if defined(CURL_HAS_NOVELL_LDAPSDK)
rc = ldapssl_client_init(NULL, NULL);
if(rc != LDAP_SUCCESS) {
failf(data, "LDAP local: ldapssl_client_init %s", ldap_err2string(rc));
status = CURLE_SSL_CERTPROBLEM;
goto quit;
}
if(data->set.ssl.verifypeer) {
/* Novell SDK supports DER or BASE64 files. */
int cert_type = LDAPSSL_CERT_FILETYPE_B64;
if((data->set.str[STRING_CERT_TYPE]) &&
(Curl_raw_equal(data->set.str[STRING_CERT_TYPE], "DER")))
cert_type = LDAPSSL_CERT_FILETYPE_DER;
if(!ldap_ca) {
failf(data, "LDAP local: ERROR %s CA cert not set!",
(cert_type == LDAPSSL_CERT_FILETYPE_DER ? "DER" : "PEM"));
status = CURLE_SSL_CERTPROBLEM;
goto quit;
}
infof(data, "LDAP local: using %s CA cert '%s'\n",
(cert_type == LDAPSSL_CERT_FILETYPE_DER ? "DER" : "PEM"),
ldap_ca);
rc = ldapssl_add_trusted_cert(ldap_ca, cert_type);
if(rc != LDAP_SUCCESS) {
failf(data, "LDAP local: ERROR setting %s CA cert: %s",
(cert_type == LDAPSSL_CERT_FILETYPE_DER ? "DER" : "PEM"),
ldap_err2string(rc));
status = CURLE_SSL_CERTPROBLEM;
goto quit;
}
ldap_option = LDAPSSL_VERIFY_SERVER;
}
else
ldap_option = LDAPSSL_VERIFY_NONE;
rc = ldapssl_set_verify_mode(ldap_option);
if(rc != LDAP_SUCCESS) {
failf(data, "LDAP local: ERROR setting cert verify mode: %s",
ldap_err2string(rc));
status = CURLE_SSL_CERTPROBLEM;
goto quit;
}
server = ldapssl_init(conn->host.name, (int)conn->port, 1);
if(server == NULL) {
failf(data, "LDAP local: Cannot connect to %s:%hu",
conn->host.name, conn->port);
status = CURLE_COULDNT_CONNECT;
goto quit;
}
#elif defined(LDAP_OPT_X_TLS)
if(data->set.ssl.verifypeer) {
/* OpenLDAP SDK supports BASE64 files. */
if((data->set.str[STRING_CERT_TYPE]) &&
(!Curl_raw_equal(data->set.str[STRING_CERT_TYPE], "PEM"))) {
failf(data, "LDAP local: ERROR OpenLDAP only supports PEM cert-type!");
status = CURLE_SSL_CERTPROBLEM;
goto quit;
}
if(!ldap_ca) {
failf(data, "LDAP local: ERROR PEM CA cert not set!");
status = CURLE_SSL_CERTPROBLEM;
goto quit;
}
infof(data, "LDAP local: using PEM CA cert: %s\n", ldap_ca);
rc = ldap_set_option(NULL, LDAP_OPT_X_TLS_CACERTFILE, ldap_ca);
if(rc != LDAP_SUCCESS) {
failf(data, "LDAP local: ERROR setting PEM CA cert: %s",
ldap_err2string(rc));
status = CURLE_SSL_CERTPROBLEM;
goto quit;
}
ldap_option = LDAP_OPT_X_TLS_DEMAND;
}
else
ldap_option = LDAP_OPT_X_TLS_NEVER;
rc = ldap_set_option(NULL, LDAP_OPT_X_TLS_REQUIRE_CERT, &ldap_option);
if(rc != LDAP_SUCCESS) {
failf(data, "LDAP local: ERROR setting cert verify mode: %s",
ldap_err2string(rc));
status = CURLE_SSL_CERTPROBLEM;
goto quit;
}
server = ldap_init(conn->host.name, (int)conn->port);
if(server == NULL) {
failf(data, "LDAP local: Cannot connect to %s:%hu",
conn->host.name, conn->port);
status = CURLE_COULDNT_CONNECT;
goto quit;
}
ldap_option = LDAP_OPT_X_TLS_HARD;
rc = ldap_set_option(server, LDAP_OPT_X_TLS, &ldap_option);
if(rc != LDAP_SUCCESS) {
failf(data, "LDAP local: ERROR setting SSL/TLS mode: %s",
ldap_err2string(rc));
status = CURLE_SSL_CERTPROBLEM;
goto quit;
}
/*
rc = ldap_start_tls_s(server, NULL, NULL);
if(rc != LDAP_SUCCESS) {
failf(data, "LDAP local: ERROR starting SSL/TLS mode: %s",
ldap_err2string(rc));
status = CURLE_SSL_CERTPROBLEM;
goto quit;
}
*/
#else
/* we should probably never come up to here since configure
should check in first place if we can support LDAP SSL/TLS */
failf(data, "LDAP local: SSL/TLS not supported with this version "
"of the OpenLDAP toolkit\n");
status = CURLE_SSL_CERTPROBLEM;
goto quit;
#endif
#endif
#endif /* CURL_LDAP_USE_SSL */
}
else {
server = ldap_init(conn->host.name, (int)conn->port);
if(server == NULL) {
failf(data, "LDAP local: Cannot connect to %s:%hu",
conn->host.name, conn->port);
status = CURLE_COULDNT_CONNECT;
goto quit;
}
}
#ifdef CURL_LDAP_WIN
ldap_set_option(server, LDAP_OPT_PROTOCOL_VERSION, &ldap_proto);
#endif
rc = ldap_simple_bind_s(server,
conn->bits.user_passwd ? conn->user : NULL,
conn->bits.user_passwd ? conn->passwd : NULL);
if(!ldap_ssl && rc != 0) {
ldap_proto = LDAP_VERSION2;
ldap_set_option(server, LDAP_OPT_PROTOCOL_VERSION, &ldap_proto);
rc = ldap_simple_bind_s(server,
conn->bits.user_passwd ? conn->user : NULL,
conn->bits.user_passwd ? conn->passwd : NULL);
}
if(rc != 0) {
failf(data, "LDAP local: ldap_simple_bind_s %s", ldap_err2string(rc));
status = CURLE_LDAP_CANNOT_BIND;
goto quit;
}
rc = ldap_search_s(server, ludp->lud_dn, ludp->lud_scope,
ludp->lud_filter, ludp->lud_attrs, 0, &result);
if(rc != 0 && rc != LDAP_SIZELIMIT_EXCEEDED) {
failf(data, "LDAP remote: %s", ldap_err2string(rc));
status = CURLE_LDAP_SEARCH_FAILED;
goto quit;
}
for(num = 0, entryIterator = ldap_first_entry(server, result);
entryIterator;
entryIterator = ldap_next_entry(server, entryIterator), num++) {
BerElement *ber = NULL;
char *attribute; /*! suspicious that this isn't 'const' */
char *dn = ldap_get_dn(server, entryIterator);
int i;
Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"DN: ", 4);
Curl_client_write(conn, CLIENTWRITE_BODY, (char *)dn, 0);
Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\n", 1);
dlsize += strlen(dn)+5;
for(attribute = ldap_first_attribute(server, entryIterator, &ber);
attribute;
attribute = ldap_next_attribute(server, entryIterator, ber)) {
BerValue **vals = ldap_get_values_len(server, entryIterator, attribute);
if(vals != NULL) {
for(i = 0; (vals[i] != NULL); i++) {
Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\t", 1);
Curl_client_write(conn, CLIENTWRITE_BODY, (char *) attribute, 0);
Curl_client_write(conn, CLIENTWRITE_BODY, (char *)": ", 2);
dlsize += strlen(attribute)+3;
if((strlen(attribute) > 7) &&
(strcmp(";binary",
(char *)attribute +
(strlen((char *)attribute) - 7)) == 0)) {
/* Binary attribute, encode to base64. */
CURLcode error = Curl_base64_encode(data,
vals[i]->bv_val,
vals[i]->bv_len,
&val_b64,
&val_b64_sz);
if(error) {
ldap_value_free_len(vals);
ldap_memfree(attribute);
ldap_memfree(dn);
if(ber)
ber_free(ber, 0);
status = error;
goto quit;
}
if(val_b64_sz > 0) {
Curl_client_write(conn, CLIENTWRITE_BODY, val_b64, val_b64_sz);
free(val_b64);
dlsize += val_b64_sz;
}
}
else {
Curl_client_write(conn, CLIENTWRITE_BODY, vals[i]->bv_val,
vals[i]->bv_len);
dlsize += vals[i]->bv_len;
}
Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\n", 0);
dlsize++;
}
/* Free memory used to store values */
ldap_value_free_len(vals);
}
Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\n", 1);
dlsize++;
Curl_pgrsSetDownloadCounter(data, dlsize);
ldap_memfree(attribute);
}
ldap_memfree(dn);
if(ber)
ber_free(ber, 0);
}
quit:
if(result) {
ldap_msgfree(result);
LDAP_TRACE (("Received %d entries\n", num));
}
if(rc == LDAP_SIZELIMIT_EXCEEDED)
infof(data, "There are more than %d entries\n", num);
if(ludp)
ldap_free_urldesc(ludp);
if(server)
ldap_unbind_s(server);
#if defined(HAVE_LDAP_SSL) && defined(CURL_HAS_NOVELL_LDAPSDK)
if(ldap_ssl)
ldapssl_client_deinit();
#endif /* HAVE_LDAP_SSL && CURL_HAS_NOVELL_LDAPSDK */
/* no data to transfer */
Curl_setup_transfer(conn, -1, -1, FALSE, NULL, -1, NULL);
conn->bits.close = TRUE;
return status;
}
#ifdef DEBUG_LDAP
static void _ldap_trace (const char *fmt, ...)
{
static int do_trace = -1;
va_list args;
if(do_trace == -1) {
const char *env = getenv("CURL_TRACE");
do_trace = (env && strtol(env, NULL, 10) > 0);
}
if(!do_trace)
return;
va_start (args, fmt);
vfprintf (stderr, fmt, args);
va_end (args);
}
#endif
#ifndef HAVE_LDAP_URL_PARSE
/*
* Return scope-value for a scope-string.
*/
static int str2scope (const char *p)
{
if(strequal(p, "one"))
return LDAP_SCOPE_ONELEVEL;
if(strequal(p, "onetree"))
return LDAP_SCOPE_ONELEVEL;
if(strequal(p, "base"))
return LDAP_SCOPE_BASE;
if(strequal(p, "sub"))
return LDAP_SCOPE_SUBTREE;
if(strequal( p, "subtree"))
return LDAP_SCOPE_SUBTREE;
return (-1);
}
/*
* Split 'str' into strings separated by commas.
* Note: res[] points into 'str'.
*/
static char **split_str (char *str)
{
char **res, *lasts, *s;
int i;
for(i = 2, s = strchr(str,','); s; i++)
s = strchr(++s,',');
res = calloc(i, sizeof(char*));
if(!res)
return NULL;
for(i = 0, s = strtok_r(str, ",", &lasts); s;
s = strtok_r(NULL, ",", &lasts), i++)
res[i] = s;
return res;
}
/*
* Unescape the LDAP-URL components
*/
static bool unescape_elements (void *data, LDAPURLDesc *ludp)
{
int i;
if(ludp->lud_filter) {
ludp->lud_filter = curl_easy_unescape(data, ludp->lud_filter, 0, NULL);
if(!ludp->lud_filter)
return (FALSE);
}
for(i = 0; ludp->lud_attrs && ludp->lud_attrs[i]; i++) {
ludp->lud_attrs[i] = curl_easy_unescape(data, ludp->lud_attrs[i], 0, NULL);
if(!ludp->lud_attrs[i])
return (FALSE);
}
for(i = 0; ludp->lud_exts && ludp->lud_exts[i]; i++) {
ludp->lud_exts[i] = curl_easy_unescape(data, ludp->lud_exts[i], 0, NULL);
if(!ludp->lud_exts[i])
return (FALSE);
}
if(ludp->lud_dn) {
char *dn = ludp->lud_dn;
char *new_dn = curl_easy_unescape(data, dn, 0, NULL);
free(dn);
ludp->lud_dn = new_dn;
if(!new_dn)
return (FALSE);
}
return (TRUE);
}
/*
* Break apart the pieces of an LDAP URL.
* Syntax:
* ldap://<hostname>:<port>/<base_dn>?<attributes>?<scope>?<filter>?<ext>
*
* <hostname> already known from 'conn->host.name'.
* <port> already known from 'conn->remote_port'.
* extract the rest from 'conn->data->state.path+1'. All fields are optional.
* e.g.
* ldap://<hostname>:<port>/?<attributes>?<scope>?<filter>
* yields ludp->lud_dn = "".
*
* Defined in RFC4516 section 2.
*/
static int _ldap_url_parse2 (const struct connectdata *conn, LDAPURLDesc *ludp)
{
char *p, *q;
int i;
if(!conn->data ||
!conn->data->state.path ||
conn->data->state.path[0] != '/' ||
!checkprefix("LDAP", conn->data->change.url))
return LDAP_INVALID_SYNTAX;
ludp->lud_scope = LDAP_SCOPE_BASE;
ludp->lud_port = conn->remote_port;
ludp->lud_host = conn->host.name;
/* parse DN (Distinguished Name).
*/
ludp->lud_dn = strdup(conn->data->state.path+1);
if(!ludp->lud_dn)
return LDAP_NO_MEMORY;
p = strchr(ludp->lud_dn, '?');
LDAP_TRACE (("DN '%.*s'\n", p ? (size_t)(p-ludp->lud_dn) :
strlen(ludp->lud_dn), ludp->lud_dn));
if(!p)
goto success;
*p++ = '\0';
/* parse attributes. skip "??".
*/
q = strchr(p, '?');
if(q)
*q++ = '\0';
if(*p && *p != '?') {
ludp->lud_attrs = split_str(p);
if(!ludp->lud_attrs)
return LDAP_NO_MEMORY;
for(i = 0; ludp->lud_attrs[i]; i++)
LDAP_TRACE (("attr[%d] '%s'\n", i, ludp->lud_attrs[i]));
}
p = q;
if(!p)
goto success;
/* parse scope. skip "??"
*/
q = strchr(p, '?');
if(q)
*q++ = '\0';
if(*p && *p != '?') {
ludp->lud_scope = str2scope(p);
if(ludp->lud_scope == -1)
return LDAP_INVALID_SYNTAX;
LDAP_TRACE (("scope %d\n", ludp->lud_scope));
}
p = q;
if(!p)
goto success;
/* parse filter
*/
q = strchr(p, '?');
if(q)
*q++ = '\0';
if(!*p)
return LDAP_INVALID_SYNTAX;
ludp->lud_filter = p;
LDAP_TRACE (("filter '%s'\n", ludp->lud_filter));
p = q;
if(!p)
goto success;
/* parse extensions
*/
ludp->lud_exts = split_str(p);
if(!ludp->lud_exts)
return LDAP_NO_MEMORY;
for(i = 0; ludp->lud_exts[i]; i++)
LDAP_TRACE (("exts[%d] '%s'\n", i, ludp->lud_exts[i]));
success:
if(!unescape_elements(conn->data, ludp))
return LDAP_NO_MEMORY;
return LDAP_SUCCESS;
}
static int _ldap_url_parse (const struct connectdata *conn,
LDAPURLDesc **ludpp)
{
LDAPURLDesc *ludp = calloc(1, sizeof(*ludp));
int rc;
*ludpp = NULL;
if(!ludp)
return LDAP_NO_MEMORY;
rc = _ldap_url_parse2 (conn, ludp);
if(rc != LDAP_SUCCESS) {
_ldap_free_urldesc(ludp);
ludp = NULL;
}
*ludpp = ludp;
return (rc);
}
static void _ldap_free_urldesc (LDAPURLDesc *ludp)
{
int i;
if(!ludp)
return;
if(ludp->lud_dn)
free(ludp->lud_dn);
if(ludp->lud_filter)
free(ludp->lud_filter);
if(ludp->lud_attrs) {
for(i = 0; ludp->lud_attrs[i]; i++)
free(ludp->lud_attrs[i]);
free(ludp->lud_attrs);
}
if(ludp->lud_exts) {
for(i = 0; ludp->lud_exts[i]; i++)
free(ludp->lud_exts[i]);
free(ludp->lud_exts);
}
free (ludp);
}
#endif /* !HAVE_LDAP_URL_PARSE */
#endif /* !CURL_DISABLE_LDAP && !USE_OPENLDAP */
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