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/* ISC license. */
#include <errno.h>
#include <skalibs/error.h>
#include <skalibs/bytestr.h>
#include <skalibs/allreadwrite.h>
#include <skalibs/uint32.h>
#include <skalibs/djbunix.h>
#include <skalibs/cdb.h>
int cdb_read (struct cdb *c, char *buf, unsigned int len, uint32 pos)
{
if (c->map)
{
if ((pos > c->size) || (c->size - pos < len)) return (errno = EPROTO, -1) ;
byte_copy(buf, len, c->map + pos) ;
}
else
{
if (seek_set(c->fd, pos) < 0) return -1 ;
if (allread(c->fd, buf, len) < len) return -1 ;
}
return 0 ;
}
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