/*
* get_write_buffer
*
* a wrapper to tlm_get_write_buffer so that
* we can cleanly detect ABORT commands
* without involving the TLM library with
* our problems.
*/
static char *
get_write_buffer(long size, long *actual_size,
boolean_t zero, tlm_cmd_t *local_commands)
{
while (local_commands->tc_reader == TLM_BACKUP_RUN) {
char *rec = tlm_get_write_buffer(size, actual_size,
local_commands->tc_buffers, zero);
if (rec != 0) {
return (rec);
}
}
return (NULL);
}
/*
* ndmp_write_utf8magic
*
* Write a magic pattern to the tar header. This is used
* as a crest to indicate that tape belongs to us.
*/
int
ndmp_write_utf8magic(tlm_cmd_t *cmd)
{
char *cp;
long actual_size;
if (cmd->tc_buffers == NULL) {
NDMP_LOG(LOG_DEBUG, "cmd->tc_buffers == NULL");
return (-1);
}
cp = tlm_get_write_buffer(RECORDSIZE, &actual_size,
cmd->tc_buffers, TRUE);
if (actual_size < RECORDSIZE) {
NDMP_LOG(LOG_DEBUG, "Couldn't get enough buffer");
return (-1);
}
(void) strlcpy(cp, NDMPUTF8MAGIC, RECORDSIZE);
return (0);
}