openldap/libraries/liblutil/fetch.c
2003-11-25 23:19:47 +00:00

119 lines
2.2 KiB
C

/* fetch.c - routines for fetching data at URLs */
/* $OpenLDAP$ */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 1999-2003 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 "ldap_log.h"
#include "lber_pvt.h"
#include "ldap_pvt.h"
#include "ldap_config.h"
#include "ldif.h"
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;
#ifdef HAVE_FETCH
url = fetchGetURL( (char*) urlstr, "" );
#else
if( strncasecmp( "file://", urlstr, sizeof("file://")-1 ) == 0 ) {
p = strchr( &urlstr[sizeof("file://")-1], '/' );
if( p == NULL ) {
return -1;
}
/* we don't check for LDAP_DIRSEP since URLs should contain '/' */
if( *p != '/' ) {
/* skip over false root */
p++;
}
p = ber_strdup( p );
ldap_pvt_hex_unescape( p );
url = fopen( p, "rb" );
} else {
return -1;
}
#endif
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;
}