Issue #10924: Adding salt and Modular Crypt Format to crypt library.

Modules/_cryptmodule.c

@@ -0,0 +1,62 @@
+/* cryptmodule.c - by Steve Majewski
+ */
+
+#include "Python.h"
+
+#include <sys/types.h>
+
+#ifdef __VMS
+#include <openssl/des.h>
+#endif
+
+/* Module crypt */
+
+
+static PyObject *crypt_crypt(PyObject *self, PyObject *args)
+{
+    char *word, *salt;
+#ifndef __VMS
+    extern char * crypt(const char *, const char *);
+#endif
+
+    if (!PyArg_ParseTuple(args, "ss:crypt", &word, &salt)) {
+        return NULL;
+    }
+    /* On some platforms (AtheOS) crypt returns NULL for an invalid
+       salt. Return None in that case. XXX Maybe raise an exception?  */
+    return Py_BuildValue("s", crypt(word, salt));
+
+}
+
+PyDoc_STRVAR(crypt_crypt__doc__,
+"crypt(word, salt) -> string\n\
+word will usually be a user's password. salt is a 2-character string\n\
+which will be used to select one of 4096 variations of DES. The characters\n\
+in salt must be either \".\", \"/\", or an alphanumeric character. Returns\n\
+the hashed password as a string, which will be composed of characters from\n\
+the same alphabet as the salt.");
+
+
+static PyMethodDef crypt_methods[] = {
+    {"crypt",           crypt_crypt, METH_VARARGS, crypt_crypt__doc__},
+    {NULL,              NULL}           /* sentinel */
+};
+
+
+static struct PyModuleDef cryptmodule = {
+    PyModuleDef_HEAD_INIT,
+    "_crypt",
+    NULL,
+    -1,
+    crypt_methods,
+    NULL,
+    NULL,
+    NULL,
+    NULL
+};
+
+PyMODINIT_FUNC
+PyInit__crypt(void)
+{
+    return PyModule_Create(&cryptmodule);
+}