#include <stdlib.h>
#include "php.h"
#if HAVE_CRYPT
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#if HAVE_CRYPT_H
#if defined(CRYPT_R_GNU_SOURCE) && !defined(_GNU_SOURCE)
#define _GNU_SOURCE
#endif
#include <crypt.h>
#endif
#if TM_IN_SYS_TIME
#include <sys/time.h>
#else
#include <time.h>
#endif
#if HAVE_STRING_H
#include <string.h>
#else
#include <strings.h>
#endif
#ifdef PHP_WIN32
#include <process.h>
extern char *crypt(char *__key, char *__salt);
#endif
#include "php_lcg.h"
#include "php_crypt.h"
#include "php_rand.h"
#if PHP_STD_DES_CRYPT
#define PHP_MAX_SALT_LEN 2
#endif
#if PHP_EXT_DES_CRYPT
#undef PHP_MAX_SALT_LEN
#define PHP_MAX_SALT_LEN 9
#endif
#if PHP_MD5_CRYPT
#undef PHP_MAX_SALT_LEN
#define PHP_MAX_SALT_LEN 12
#endif
#if PHP_BLOWFISH_CRYPT
#undef PHP_MAX_SALT_LEN
#define PHP_MAX_SALT_LEN 60
#endif
#ifndef PHP_MAX_SALT_LEN
#define PHP_MAX_SALT_LEN 2
#undef PHP_STD_DES_CRYPT
#define PHP_STD_DES_CRYPT 1
#endif
#define PHP_CRYPT_RAND php_rand(TSRMLS_C)
PHP_MINIT_FUNCTION(crypt)
{
REGISTER_LONG_CONSTANT("CRYPT_SALT_LENGTH", PHP_MAX_SALT_LEN, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("CRYPT_STD_DES", PHP_STD_DES_CRYPT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("CRYPT_EXT_DES", PHP_EXT_DES_CRYPT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("CRYPT_MD5", PHP_MD5_CRYPT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("CRYPT_BLOWFISH", PHP_BLOWFISH_CRYPT, CONST_CS | CONST_PERSISTENT);
return SUCCESS;
}
static unsigned char itoa64[] = "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
static void php_to64(char *s, long v, int n)
{
while (--n >= 0) {
*s++ = itoa64[v&0x3f];
v >>= 6;
}
}
PHP_FUNCTION(crypt)
{
char salt[PHP_MAX_SALT_LEN+1];
char *str, *salt_in = NULL;
int str_len, salt_in_len;
salt[0]=salt[PHP_MAX_SALT_LEN]='\0';
memset(&salt[1], '$', PHP_MAX_SALT_LEN-1);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|s", &str, &str_len,
&salt_in, &salt_in_len) == FAILURE) {
return;
}
if (salt_in) {
memcpy(salt, salt_in, MIN(PHP_MAX_SALT_LEN, salt_in_len));
}
if(!*salt) {
#if PHP_MD5_CRYPT
strcpy(salt, "$1$");
php_to64(&salt[3], PHP_CRYPT_RAND, 4);
php_to64(&salt[7], PHP_CRYPT_RAND, 4);
strcpy(&salt[11], "$");
#elif PHP_STD_DES_CRYPT
php_to64(&salt[0], PHP_CRYPT_RAND, 2);
salt[2] = '\0';
#endif
}
#if defined(HAVE_CRYPT_R) && (defined(_REENTRANT) || defined(_THREAD_SAFE))
{
#if defined(CRYPT_R_STRUCT_CRYPT_DATA)
struct crypt_data buffer;
memset(&buffer, 0, sizeof(buffer));
#elif defined(CRYPT_R_CRYPTD)
CRYPTD buffer;
#else
#error Data struct used by crypt_r() is unknown. Please report.
#endif
RETURN_STRING(crypt_r(str, salt, &buffer), 1);
}
#else
RETURN_STRING(crypt(str, salt), 1);
#endif
}
#endif