2021-10-11 19:38:01 -03:00

65 lines
1.5 KiB
C
Executable File

/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
/* The copyright notice above does not evidence any */
/* actual or intended publication of such source code. */
#ident "@(#)TLappend.c 1.4 92/07/14 SMI" /* SVr4.0 1.4 */
#include <table.h>
#include <internal.h>
extern tbl_t TLtables[];
int
TLappend( tid, entryno, entry )
int tid;
entryno_t entryno;
entry_t *entry;
{
register rc;
entry_t *newentry, *TLe_malloc();
/* Initialize TLlib, if needed */
TLinit();
tid--;
if( !TLt_valid( tid ) ) return( TLBADID );
if( !entry ) return( TLARGS );
if( entryno < 0 || entryno > TLEND )
return( TLBADENTRY );
else if( entryno == TLBEGIN ) entryno = 0;
/*
else if( !IS_FROM_END(entryno) ) entryno--;
*/
if( TLe_diffformat( tid, entry ) ) return( TLDIFFFORMAT );
/*
TLe_find() insures that the entry, it it exists, is parsed and
in main memory.
*/
if( entryno != 0 && (rc = TLe_find( tid, entryno ) ) ) return( rc );
/* Make our own copy of the entry */
if( !(newentry = TLe_malloc()) ) return( TLNOMEMORY );
if( (rc = TLe_copy( newentry, entry ) ) != TLOK ) {
(void)TLfreeentry( tid, newentry );
return( rc );
}
/* If entryno is relative to the end, make that calculation here */
if( IS_FROM_END(entryno) )
entryno = TLe_relative( tid, entryno );
/* Add the entry into the table */
if( (rc = TLe_add( tid, entryno + 1, newentry ) ) == TLOK )
TLtables[ tid ].status |= MODIFIED;
else (void)TLfreeentry( tid, newentry );
return( rc );
}