extern ssize_t io_write(IO_HANDLE f, const void *d, size_t l)
{
io_private_t *io_ptr = f;
if (!io_ptr || io_ptr->fd < 0)
return errno = EBADF , -1;
if (io_ptr->hash_init)
gcry_md_write(io_ptr->hash_handle, d, l);
switch (io_ptr->operation)
{
case IO_LZMA:
if (!io_ptr->lzma_init)
io_do_compress(io_ptr);
return lzma_write(io_ptr, d, l);
case IO_ENCRYPT:
return enc_write(io_ptr, d, l);
case IO_DEFAULT:
return ecc_write(io_ptr, d, l);
}
errno = EINVAL;
return -1;
}
/* lzma_printf writes the output to the given lzmafile file pointer.
Upon success, it returns the number of characters printed (not
including the trailing '\0'). If an output error is encountered,
a negative value is returned. */
int lzma_printf (struct lzmafile* file, const char *format, ...)
{
size_t size = 32768;
int len;
unsigned char in[32768];
va_list va;
va_start(va, format);
in[size-1] = 0;
(void)vsnprintf((char *)in, size, format, va);
va_end(va);
len = strlen((char *)in);
/* check that printf() results fit in buffer */
if (len <= 0 || len >= (int)size || in[size - 1] != 0) {
fprintf(stderr,"lzma_printf error: the printf results do not fit in the buffer\n");
return -1;
}
in[len] = '\0';
len = lzma_write(file, in, len);
return len;
}
static int lzma_sync(io_private_t *c)
{
lzma_write(c, NULL, 0);
return enc_sync(c);
}