campo-sirio/cb5/i4dump.c

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/* i4dump.c (C)Copyright Sequiter Software Inc., 1990-1994. All rights reserved.
Displays the contents of a tag.
Currently uses printf */
#include "d4all.h"
#ifndef S4UNIX
#ifdef __TURBOC__
#pragma hdrstop
#endif
#endif
#ifndef S4INDEX_OFF
/* not supported for FoxPro compact index file structures */
#ifdef S4MDX /* ifndef S4FOX */
static void output( int h, char * s )
{
write( h, s, strlen(s) ) ;
}
static int t4dump_do( TAG4 *t4, int out_handle, int level, int display_all )
{
char out_buf[200] ;
int rc, i_key ;
B4BLOCK *block_on ;
char buf[ I4MAX_KEY_SIZE ] ;
int len ;
rc = t4down( t4 ) ;
if ( rc < 0 || rc == 2 )
return -1 ;
block_on = t4block( t4 ) ;
if ( b4leaf( block_on ) && !display_all )
{
t4up( t4 ) ;
return 0 ;
}
if ( b4leaf( block_on) )
{
M4PRINT( out_buf, "\r\n\r\nLeaf B4BLOCK #: %ld Level %d\r\n\r\n", block_on->file_block, level ) ;
output( out_handle, out_buf ) ;
output( out_handle, "Record Number Key\r\n" ) ;
}
else
{
M4PRINT( out_buf, "\r\n\r\nBranch B4BLOCK #: %ld Level %d\r\n\r\n", block_on->file_block, level ) ;
output( out_handle, out_buf ) ;
output( out_handle, "FILE4 B4BLOCK Key\r\n" ) ;
}
for ( i_key = 0; i_key < block_on->n_keys; i_key++ )
{
M4PRINT( out_buf, "\r\n%10ld ", b4key(block_on,i_key)->num ) ;
output( out_handle, out_buf ) ;
if ( t4type( t4 ) == r4str )
{
len = 50 ;
if ( len > t4->header.key_len )
len = t4->header.key_len ;
memcpy( buf, b4key_key( block_on, i_key ), len ) ;
buf[len] = 0 ;
output( out_handle, buf ) ;
}
}
if ( b4leaf( block_on ) )
{
t4up( t4 ) ;
return 0 ;
}
M4PRINT( out_buf, "\r\n%10ld ", b4key( block_on, i_key )->num ) ;
output( out_handle, out_buf ) ;
block_on->key_on = 0 ;
do
{
rc = t4dump_do( t4, out_handle, level + 1, display_all ) ;
if ( rc > 0 )
e4severe( e4result, E4_T4DUMP ) ;
if ( rc < 0 )
return -1 ;
} while ( b4skip( block_on, 1) == 1 ) ;
t4up(t4) ;
return 0 ;
}
int S4FUNCTION t4dump( TAG4 *t4, int out_handle, int display_all )
{
int rc ;
#ifdef S4DEBUG
if ( t4 == 0 )
e4severe( e4parm, E4_T4DUMP ) ;
#endif
if ( t4->code_base->error_code < 0 )
return -1 ;
rc = i4lock( t4->index ) ;
if ( rc )
return rc ;
if ( t4free_all( t4 ) < 0 )
return -1 ;
output( out_handle, "\r\n\r\n" ) ;
return t4dump_do( t4, out_handle, 0, display_all ) ;
}
#endif
#endif