int
broadcast_var_set (SF_PRIVATE *psf, const SF_BROADCAST_INFO * info, size_t datasize)
{ char added_history [256] ;
int added_history_len, len ;
if (info == NULL)
return SF_FALSE ;
if (bc_min_size (info) > datasize)
{ psf->error = SFE_BAD_BROADCAST_INFO_SIZE ;
return SF_FALSE ;
} ;
added_history_len = gen_coding_history (added_history, sizeof (added_history), &(psf->sf)) ;
if (psf->broadcast_var != NULL)
{ size_t coding_hist_offset = offsetof (SF_BROADCAST_INFO, coding_history) ;
if (psf->broadcast_var->binfo.coding_history_size + added_history_len < datasize - coding_hist_offset)
{ free (psf->broadcast_var) ;
psf->broadcast_var = NULL ;
} ;
} ;
if (psf->broadcast_var == NULL)
{ int size = datasize + added_history_len + 512 ;
psf->broadcast_var = calloc (1, size) ;
psf->broadcast_var->size = size ;
} ;
memcpy (&(psf->broadcast_var->binfo), info, offsetof (SF_BROADCAST_INFO, coding_history)) ;
strncpy_crlf (psf->broadcast_var->binfo.coding_history, info->coding_history, bc_var_coding_hist_size (psf->broadcast_var), info->coding_history_size) ;
len = strlen (psf->broadcast_var->binfo.coding_history) ;
if (len > 0 && psf->broadcast_var->binfo.coding_history [len] != '\n')
strncat (psf->broadcast_var->binfo.coding_history, "\r\n", 2) ;
if (psf->mode == SFM_WRITE)
strncat (psf->broadcast_var->binfo.coding_history, added_history, strlen (added_history)) ;
psf->broadcast_var->binfo.coding_history_size = strlen (psf->broadcast_var->binfo.coding_history) ;
/* Fore coding_history_size to be even. */
psf->broadcast_var->binfo.coding_history_size += (psf->broadcast_var->binfo.coding_history_size & 1) ? 1 : 0 ;
/* Currently writing this version. */
psf->broadcast_var->binfo.version = 1 ;
return SF_TRUE ;
} /* broadcast_var_set */
int
broadcast_var_get (SF_PRIVATE *psf, SF_BROADCAST_INFO * data, size_t datasize)
{ size_t size ;
if (psf->broadcast_16k == NULL)
return SF_FALSE ;
size = SF_MIN (datasize, bc_min_size ((const SF_BROADCAST_INFO *) psf->broadcast_16k)) ;
memcpy (data, psf->broadcast_16k, size) ;
return SF_TRUE ;
} /* broadcast_var_get */
int
broadcast_var_get (SF_PRIVATE *psf, SF_BROADCAST_INFO * data, size_t datasize)
{ size_t size ;
if (psf->broadcast_var == NULL)
return SF_FALSE ;
size = SF_MIN (datasize, bc_min_size (&(psf->broadcast_var->binfo))) ;
memcpy (data, &(psf->broadcast_var->binfo), size) ;
return SF_TRUE ;
} /* broadcast_var_set */
int
broadcast_var_set (SF_PRIVATE *psf, const SF_BROADCAST_INFO * info, size_t datasize)
{ size_t len ;
if (info == NULL)
return SF_FALSE ;
if (bc_min_size (info) > datasize)
{ psf->error = SFE_BAD_BROADCAST_INFO_SIZE ;
return SF_FALSE ;
} ;
if (datasize >= sizeof (SF_BROADCAST_INFO_16K))
{ psf->error = SFE_BAD_BROADCAST_INFO_TOO_BIG ;
return SF_FALSE ;
} ;
if (psf->broadcast_16k == NULL)
{ if ((psf->broadcast_16k = broadcast_var_alloc ()) == NULL)
{ psf->error = SFE_MALLOC_FAILED ;
return SF_FALSE ;
} ;
} ;
memcpy (psf->broadcast_16k, info, offsetof (SF_BROADCAST_INFO, coding_history)) ;
psf_strncpy_crlf (psf->broadcast_16k->coding_history, info->coding_history, sizeof (psf->broadcast_16k->coding_history), datasize - offsetof (SF_BROADCAST_INFO, coding_history)) ;
len = strlen (psf->broadcast_16k->coding_history) ;
if (len > 0 && psf->broadcast_16k->coding_history [len - 1] != '\n')
psf_safe_strncat (psf->broadcast_16k->coding_history, "\r\n", sizeof (psf->broadcast_16k->coding_history)) ;
if (psf->file.mode == SFM_WRITE)
{ char added_history [256] ;
size_t added_history_len ;
added_history_len = gen_coding_history (added_history, sizeof (added_history), &(psf->sf)) ;
psf_safe_strncat (psf->broadcast_16k->coding_history, added_history, sizeof (psf->broadcast_16k->coding_history)) ;
} ;
/* Force coding_history_size to be even. */
len = strlen (psf->broadcast_16k->coding_history) ;
len += (len & 1) ? 1 : 2 ;
psf->broadcast_16k->coding_history_size = len ;
/* Currently writing this version. */
psf->broadcast_16k->version = 1 ;
return SF_TRUE ;
} /* broadcast_var_set */