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/* fetch.c - routines for fetching data at URLs */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 1999-2022 The OpenLDAP Foundation.
* Portions Copyright 1999-2003 Kurt D. Zeilenga.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
/* This work was initially developed by Kurt D. Zeilenga for
* inclusion in OpenLDAP Software.
*/
#include "portable.h"
#include <stdio.h>
#include <ac/stdlib.h>
#include <ac/string.h>
#include <ac/socket.h>
#include <ac/time.h>
#ifdef HAVE_FETCH
#include <fetch.h>
#endif
#include "lber_pvt.h"
#include "ldap_pvt.h"
#include "ldap_config.h"
#include "ldif.h"
FILE *
ldif_open_url(
LDAP_CONST char *urlstr )
{
FILE *url;
if( strncasecmp( "file:", urlstr, sizeof("file:")-1 ) == 0 ) {
char *p;
urlstr += sizeof("file:")-1;
/* we don't check for LDAP_DIRSEP since URLs should contain '/' */
if ( urlstr[0] == '/' && urlstr[1] == '/' ) {
urlstr += 2;
/* path must be absolute if authority is present
* technically, file://hostname/path is also legal but we don't
* accept a non-empty hostname
*/
if ( urlstr[0] != '/' ) {
#ifdef _WIN32
/* An absolute path in improper file://C:/foo/bar format */
if ( urlstr[1] != ':' )
#endif
return NULL;
}
#ifdef _WIN32
/* An absolute path in proper file:///C:/foo/bar format */
if ( urlstr[2] == ':' )
urlstr++;
#endif
}
p = ber_strdup( urlstr );
if ( p == NULL )
return NULL;
/* But we should convert to LDAP_DIRSEP before use */
if ( LDAP_DIRSEP[0] != '/' ) {
char *s = p;
while (( s = strchr( s, '/' )))
*s++ = LDAP_DIRSEP[0];
}
ldap_pvt_hex_unescape( p );
url = fopen( p, "rb" );
ber_memfree( p );
} else {
#ifdef HAVE_FETCH
url = fetchGetURL( (char*) urlstr, "" );
#else
url = NULL;
#endif
}
return url;
}
int
ldif_fetch_url(
LDAP_CONST char *urlstr,
char **valuep,
ber_len_t *vlenp )
{
FILE *url;
char buffer[1024];
char *p = NULL;
size_t total;
size_t bytes;
*valuep = NULL;
*vlenp = 0;
url = ldif_open_url( urlstr );
if( url == NULL ) {
return -1;
}
total = 0;
while( (bytes = fread( buffer, 1, sizeof(buffer), url )) != 0 ) {
char *newp = ber_memrealloc( p, total + bytes + 1 );
if( newp == NULL ) {
ber_memfree( p );
fclose( url );
return -1;
}
p = newp;
AC_MEMCPY( &p[total], buffer, bytes );
total += bytes;
}
fclose( url );
if( total == 0 ) {
char *newp = ber_memrealloc( p, 1 );
if( newp == NULL ) {
ber_memfree( p );
return -1;
}
p = newp;
}
p[total] = '\0';
*valuep = p;
*vlenp = total;
return 0;
}
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