openldap/servers/slapd/repl.c

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/* repl.c - log modifications for replication purposes */
/* $OpenLDAP$ */
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/*
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* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/string.h>
#include <ac/ctype.h>
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#include <ac/socket.h>
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#ifdef HAVE_SYS_FILE_H
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#include <sys/file.h>
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#endif
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#include "slap.h"
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#include "ldif.h"
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int
add_replica_info(
Backend *be,
const char *host
)
{
int i = 0;
assert( be );
assert( host );
if ( be->be_replica != NULL ) {
for ( ; be->be_replica[ i ] != NULL; i++ );
}
be->be_replica = ch_realloc( be->be_replica,
sizeof( struct slap_replica_info * )*( i + 2 ) );
be->be_replica[ i ]
= ch_calloc( sizeof( struct slap_replica_info ), 1 );
be->be_replica[ i ]->ri_host = ch_strdup( host );
be->be_replica[ i + 1 ] = NULL;
return( i );
}
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void
replog(
Backend *be,
Operation *op,
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char *dn,
void *change
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)
{
Modifications *ml;
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Entry *e;
struct replog_moddn *moddn;
char *tmp;
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FILE *fp, *lfp;
int len, i;
/* undef NO_LOG_WHEN_NO_REPLICAS */
#ifdef NO_LOG_WHEN_NO_REPLICAS
int count = 0;
#endif
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if ( be->be_replogfile == NULL && replogfile == NULL ) {
return;
}
ldap_pvt_thread_mutex_lock( &replog_mutex );
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if ( (fp = lock_fopen( be->be_replogfile ? be->be_replogfile :
replogfile, "a", &lfp )) == NULL ) {
ldap_pvt_thread_mutex_unlock( &replog_mutex );
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return;
}
tmp = ch_strdup( dn );
if ( dn_normalize( tmp ) == NULL ) {
/* something has gone really bad */
ch_free( tmp );
lock_fclose( fp, lfp );
ldap_pvt_thread_mutex_unlock( &replog_mutex );
return;
}
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for ( i = 0; be->be_replica != NULL && be->be_replica[i] != NULL;
i++ ) {
/* check if dn's suffix matches legal suffixes, if any */
if ( be->be_replica[i]->ri_nsuffix != NULL ) {
int j;
for ( j = 0; be->be_replica[i]->ri_nsuffix[j]; j++ ) {
if ( dn_issuffix( tmp, be->be_replica[i]->ri_nsuffix[j] ) ) {
break;
}
}
if ( !be->be_replica[i]->ri_nsuffix[j] ) {
/* do not add "replica:" line */
continue;
}
}
fprintf( fp, "replica: %s\n", be->be_replica[i]->ri_host );
#ifdef NO_LOG_WHEN_NO_REPLICAS
++count;
#endif
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}
ch_free( tmp );
#ifdef NO_LOG_WHEN_NO_REPLICAS
if ( count == 0 ) {
/* if no replicas matched, drop the log
* (should we log it anyway?) */
lock_fclose( fp, lfp );
ldap_pvt_thread_mutex_unlock( &replog_mutex );
return;
}
#endif
fprintf( fp, "time: %ld\n", (long) slap_get_time() );
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fprintf( fp, "dn: %s\n", dn );
switch ( op->o_tag ) {
case LDAP_REQ_EXTENDED:
/* quick hack for extended operations */
/* assume change parameter is a Modfications* */
/* fall thru */
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case LDAP_REQ_MODIFY:
fprintf( fp, "changetype: modify\n" );
ml = change;
for ( ; ml != NULL; ml = ml->sml_next ) {
char *type;
type = ml->sml_desc->ad_cname->bv_val;
switch ( ml->sml_op ) {
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case LDAP_MOD_ADD:
fprintf( fp, "add: %s\n", type );
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break;
case LDAP_MOD_DELETE:
fprintf( fp, "delete: %s\n", type );
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break;
case LDAP_MOD_REPLACE:
fprintf( fp, "replace: %s\n", type );
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break;
}
for ( i = 0; ml->sml_bvalues != NULL &&
ml->sml_bvalues[i] != NULL; i++ ) {
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char *buf, *bufp;
len = strlen( type );
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len = LDIF_SIZE_NEEDED( len,
ml->sml_bvalues[i]->bv_len ) + 1;
buf = (char *) ch_malloc( len );
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bufp = buf;
ldif_sput( &bufp, LDIF_PUT_VALUE,
type,
ml->sml_bvalues[i]->bv_val,
ml->sml_bvalues[i]->bv_len );
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*bufp = '\0';
fputs( buf, fp );
free( buf );
}
fprintf( fp, "-\n" );
}
break;
case LDAP_REQ_ADD:
e = change;
fprintf( fp, "changetype: add\n" );
ldap_pvt_thread_mutex_lock( &entry2str_mutex );
tmp = entry2str( e, &len );
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while ( (tmp = strchr( tmp, '\n' )) != NULL ) {
tmp++;
if ( ! isspace( (unsigned char) *tmp ) )
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break;
}
fprintf( fp, "%s", tmp );
ldap_pvt_thread_mutex_unlock( &entry2str_mutex );
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break;
case LDAP_REQ_DELETE:
fprintf( fp, "changetype: delete\n" );
break;
case LDAP_REQ_MODRDN:
moddn = change;
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fprintf( fp, "changetype: modrdn\n" );
fprintf( fp, "newrdn: %s\n", moddn->newrdn );
fprintf( fp, "deleteoldrdn: %d\n", moddn->deloldrdn ? 1 : 0 );
if( moddn->newsup != NULL ) {
fprintf( fp, "newsuperior: %s\n", moddn->newsup );
}
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}
fprintf( fp, "\n" );
lock_fclose( fp, lfp );
ldap_pvt_thread_mutex_unlock( &replog_mutex );
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}