static PyObject *print_printer_base64(PyObject *self, PyObject *args) {
/* allocates space for the decoded data buffer and for
the storage of the length (size) of it */
char *data;
char *printer;
char *input;
size_t data_length;
/* tries to parse the privided sequence of arguments
as a single string value that is going to be used as
the input value for the printing of the page */
if(PyArg_ParseTuple(args, "ss", &printer, &input) == FALSE) {
return NULL;
}
/* decodes the data value from the base 64 encoding
and then uses it to print the data */
decode_base64(
(unsigned char *) input,
strlen(input),
(unsigned char **) &data, &data_length
);
print_printer(FALSE, printer, data, data_length);
/* releases the decoded buffer (avoids memory leak)
and then returns in success */
_free_base64((unsigned char *) data);
/* returns an invalid value to the caller method/function
as this function should not return anything */
Py_RETURN_NONE;
}
void print_hello() {
/* allocates space for the decoded data buffer and for
the storage of the length (size) of it */
char *data;
size_t data_length;
/* decodes the data value from the base 64 encoding
and then uses it to print the data */
decode_base64((unsigned char *) HELLO_WORLD_B64, strlen(HELLO_WORLD_B64), (unsigned char **) &data, &data_length);
print(FALSE, data, data_length);
/* releases the decoded buffer (avoids memory leak)
and then returns in success */
_free_base64((unsigned char *) data);
}
void print_base64(char *file_path) {
/* allocates space for both the "resolved" data
buffer and for the buffer that will hold the file
contents */
char *data;
unsigned char *buffer;
/* allocates space for the value of the size of the
file and the data buffer */
size_t file_size;
size_t data_length;
/* allocates space for the pointer to the file object
to be used in the reading */
FILE *file;
/* opens the target file for read operations in
the binary form */
fopen_s(&file, file_path, "rb");
/* seeks to the final position in the file and
checks the current offset (this value should be
the size of the file in bytes) */
fseek(file, 0, SEEK_END);
file_size = ftell(file);
fseek(file, 0, SEEK_SET);
/* allocates enought space for the buffer to hold
the complete set of contents of the file */
buffer = (unsigned char *) malloc(file_size);
/* reads the complete set of contents from the file
and then sends then decodes them as base 64 */
fread(buffer, sizeof(char), file_size, file);
decode_base64(buffer, file_size, (unsigned char **) &data, &data_length);
print(FALSE, data, data_length);
/* releases the decoded buffer (avoids memory leak)
and then returns in success */
_free_base64((unsigned char *) data);
/* releases the buffer holding the contents of the just
read file (avoids leaking of memory) */
free(buffer);
}
static PyObject *print_hello(PyObject *self, PyObject *args) {
/* allocates space for the decoded data buffer and for
the storage of the length (size) of it */
char *data;
size_t data_length;
/* decodes the data value from the base 64 encoding
and then uses it to print the data */
decode_base64(
(unsigned char *) HELLO_WORLD_B64,
strlen(HELLO_WORLD_B64),
(unsigned char **) &data, &data_length
);
print(FALSE, data, data_length);
/* releases the decoded buffer (avoids memory leak)
and then returns in success */
_free_base64((unsigned char *) data);
/* returns an invalid value to the caller method/function
as this function should not return anything */
Py_RETURN_NONE;
}
