cpython/Modules/_cryptmodule.c
2021-07-27 15:58:12 -07:00

81 lines
1.7 KiB
C

/* cryptmodule.c - by Steve Majewski
*/
#include "Python.h"
#include <sys/types.h>
#ifdef HAVE_CRYPT_H
#include <crypt.h>
#endif
/* Module crypt */
/*[clinic input]
module crypt
[clinic start generated code]*/
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=c6252cf4f2f2ae81]*/
#include "clinic/_cryptmodule.c.h"
/*[clinic input]
crypt.crypt
word: str
salt: str
/
Hash a *word* with the given *salt* and return the hashed password.
*word* will usually be a user's password. *salt* (either a random 2 or 16
character string, possibly prefixed with $digit$ to indicate the method)
will be used to perturb the encryption algorithm and produce distinct
results for a given *word*.
[clinic start generated code]*/
static PyObject *
crypt_crypt_impl(PyObject *module, const char *word, const char *salt)
/*[clinic end generated code: output=0512284a03d2803c input=0e8edec9c364352b]*/
{
char *crypt_result;
#ifdef HAVE_CRYPT_R
struct crypt_data data;
memset(&data, 0, sizeof(data));
crypt_result = crypt_r(word, salt, &data);
#else
crypt_result = crypt(word, salt);
#endif
if (crypt_result == NULL) {
return PyErr_SetFromErrno(PyExc_OSError);
}
return Py_BuildValue("s", crypt_result);
}
static PyMethodDef crypt_methods[] = {
CRYPT_CRYPT_METHODDEF
{NULL, NULL} /* sentinel */
};
static PyModuleDef_Slot _crypt_slots[] = {
{0, NULL}
};
static struct PyModuleDef cryptmodule = {
PyModuleDef_HEAD_INIT,
"_crypt",
NULL,
0,
crypt_methods,
_crypt_slots,
NULL,
NULL,
NULL
};
PyMODINIT_FUNC
PyInit__crypt(void)
{
return PyModuleDef_Init(&cryptmodule);
}