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/** BEGIN COPYRIGHT BLOCK
* This Program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation; version 2 of the License.
*
* This Program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this Program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA.
*
* In addition, as a special exception, Red Hat, Inc. gives You the additional
* right to link the code of this Program with code not covered under the GNU
* General Public License ("Non-GPL Code") and to distribute linked combinations
* including the two, subject to the limitations in this paragraph. Non-GPL Code
* permitted under this exception must only link to the code of this Program
* through those well defined interfaces identified in the file named EXCEPTION
* found in the source code files (the "Approved Interfaces"). The files of
* Non-GPL Code may instantiate templates or use macros or inline functions from
* the Approved Interfaces without causing the resulting work to be covered by
* the GNU General Public License. Only Red Hat, Inc. may make changes or
* additions to the list of Approved Interfaces. You must obey the GNU General
* Public License in all respects for all of the Program code and other code used
* in conjunction with the Program except the Non-GPL Code covered by this
* exception. If you modify this file, you may extend this exception to your
* version of the file, but you are not obligated to do so. If you do not wish to
* provide this exception without modification, you must delete this exception
* statement from your version and license this file solely under the GPL without
* exception.
*
*
* Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
* Copyright (C) 2005 Red Hat, Inc.
* All rights reserved.
* END COPYRIGHT BLOCK **/
/*
* File: config.c
*
* Functions:
*
* ldif_back_config() - Reads in and stores ldif file for ldif backend
* ldif_read_one_record() - Reads in one record from ldif file as a string
*
*/
#include "back-ldif.h"
#define LDAPMOD_MAXLINE 4096
#define safe_realloc( ptr, size ) ( ptr == NULL ? malloc( size ) : \
realloc( ptr, size ))
static char *ldif_read_one_record();
/*
* Function: ldif_back_config
*
* Returns: 0 if success, -1 if not
*
* Description: Reads the data in the ldif file specified in ldif.conf
* stores it in db
*/
int
ldif_back_config( Slapi_PBlock *pb )
{
LDIF *db; /*The ldif file will be read into this structure*/
char *fname; /*Config file name*/
int lineno, argc; /*Config file stuff*/
char **argv; /*More config file stuff*/
FILE *fp; /*Pointer to ldif file*/
char *buf; /*Tmp storage for ldif entries*/
int first; /*Boolean to determine if db is empty*/
ldif_Entry *cur; /*For db manipulation*/
ldif_Entry *new; /*For db manipulation*/
Slapi_Entry *tmp; /*Used for initialization purposes*/
LDAPDebug( LDAP_DEBUG_TRACE, "=> ldif_back_config\n", 0, 0, 0 );
/*
* Get the private_info structure you created in ldif_back_init().
* Also get the config file name, current line number, and arguments
* from the current line, broken out into an argv.
*/
if (slapi_pblock_get( pb, SLAPI_PLUGIN_PRIVATE, &db ) < 0 ||
slapi_pblock_get( pb, SLAPI_CONFIG_FILENAME, &fname ) < 0 ||
slapi_pblock_get( pb, SLAPI_CONFIG_LINENO, &lineno ) < 0 ||
slapi_pblock_get( pb, SLAPI_CONFIG_ARGC, &argc ) < 0 ||
slapi_pblock_get( pb, SLAPI_CONFIG_ARGV, &argv ) < 0 ){
LDAPDebug(LDAP_DEBUG_ANY, "Ldif Backend: unable to get data from front end\n", 0, 0, 0);
return(-1);
}
/*
* Process the config info. For example, if the config file
* contains a line like this:
*
* file /path/to/ldif/file
*
* then argv[0] would be "file", and argv[1] would be the file
* name.
*/
/*Check for the correct number of arguments*/
if (argc != 2){
LDAPDebug(LDAP_DEBUG_ANY, "Ldif Backend: Unable to configure; invalid ldif input file specification line format (file: %s, line: %d)\n",
fname, lineno, 0);
return(-1);
}
/*Check for the right format*/
if (strcmp(argv[0], "file") != 0){
LDAPDebug(LDAP_DEBUG_ANY, "Ldif Backend: unable to configure; invalid parameter \"%s\" in config file (file: %s, line: %d)\n",
argv[0], fname, lineno );
return(-1);
}
/*Now we fopen the file and grab up the contents*/
fp = fopen (argv[1], "r");
if (fp == NULL){
LDAPDebug(LDAP_DEBUG_ANY, "Ldif Backend: unable to read ldif file %s\n", argv[1], 0, 0);
fp = fopen (argv[1], "w");
if(fp == NULL){
LDAPDebug(LDAP_DEBUG_ANY, "Ldif Backend: unable to create ldif file %s\n", argv[1], 0, 0);
return -1;
}
}
first = 1;
/* Lock the database first, just to be safe*/
PR_Lock( db->ldif_lock );
/*Save the filename, for modifications to the file later*/
if ((db->ldif_file = strdup(argv[1])) == NULL){
LDAPDebug(LDAP_DEBUG_ANY, "Ldif Backend: out of memory\n", 0, 0, 0);
PR_Unlock( db->ldif_lock );
fclose(fp);
return(-1);
}
/*
* Loop through the entries in the file, and add them to the end
* of the linked list
*/
while ((buf = ldif_read_one_record(fp)) != NULL){
/*Create a new element for the linked list of entries*/
tmp = (Slapi_Entry *) slapi_str2entry(buf,
SLAPI_STR2ENTRY_NOT_WELL_FORMED_LDIF);
new = (ldif_Entry *) ldifentry_init(tmp);
if (new == NULL){
LDAPDebug(LDAP_DEBUG_ANY, "Ldif Backend: unable to read in ldif file; out of memory\n",0 ,0 ,0 );
PR_Unlock( db->ldif_lock );
fclose(fp);
return(-1);
}
/*
* If this is the first entry we are adding,
* we have to make it the first element in the list
*/
if (first){
db->ldif_entries = new;
first = 0;
} else{
cur->next = new;
}
/*Reset the pointer to the last element in the list*/
cur = new;
/*Increment the number of entries*/
db->ldif_n++;
/*Free the buffer*/
free ((void *) buf );
}
/*By now, the database should be read in*/
PR_Unlock( db->ldif_lock );
fclose(fp);
LDAPDebug( LDAP_DEBUG_TRACE, "<= ldif_back_config\n", 0, 0, 0 );
return( 0 );
}
/*
* Function: ldif_read_one_record
*
* Returns: a long string representing an ldif record
*
* Description: Returns a huge string comprised of 1 ldif record
* read from fp.
*
*/
static char *
ldif_read_one_record( FILE *fp )
{
int len, gotnothing;
char *buff, line[ LDAPMOD_MAXLINE ];
int lcur, lmax;
lcur = lmax = 0;
buff = NULL;
gotnothing = 1;
while ( fgets( line, sizeof(line), fp ) != NULL ) {
if ( (len = strlen( line )) < 2 ) {
if ( gotnothing ) {
continue;
} else {
break;
}
}
gotnothing = 0;
if ( lcur + len + 1 > lmax ) {
lmax = LDAPMOD_MAXLINE
* (( lcur + len + 1 ) / LDAPMOD_MAXLINE + 1 );
if (( buff = (char *)safe_realloc( buff, lmax )) == NULL ) {
perror( "safe_realloc" );
exit( LDAP_NO_MEMORY );
}
}
strcpy( buff + lcur, line );
lcur += len;
}
return( buff );
}
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