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# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import absolute_import, division, print_function
INCLUDES = """
#include <string.h>
"""
TYPES = """
typedef struct {
char *password;
int length;
int called;
int error;
int maxsize;
} CRYPTOGRAPHY_PASSWORD_DATA;
"""
FUNCTIONS = """
int Cryptography_pem_password_cb(char *, int, int, void *);
"""
CUSTOMIZATIONS = """
typedef struct {
char *password;
int length;
int called;
int error;
int maxsize;
} CRYPTOGRAPHY_PASSWORD_DATA;
int Cryptography_pem_password_cb(char *buf, int size,
int rwflag, void *userdata) {
/* The password cb is only invoked if OpenSSL decides the private
key is encrypted. So this path only occurs if it needs a password */
CRYPTOGRAPHY_PASSWORD_DATA *st = (CRYPTOGRAPHY_PASSWORD_DATA *)userdata;
st->called += 1;
st->maxsize = size;
if (st->length == 0) {
st->error = -1;
return 0;
} else if (st->length < size) {
memcpy(buf, st->password, st->length);
return st->length;
} else {
st->error = -2;
return 0;
}
}
"""
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