diff options
Diffstat (limited to 'ext/mcrypt/mcrypt.c')
| -rw-r--r-- | ext/mcrypt/mcrypt.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/ext/mcrypt/mcrypt.c b/ext/mcrypt/mcrypt.c index b36f17dda0..87e6271606 100644 --- a/ext/mcrypt/mcrypt.c +++ b/ext/mcrypt/mcrypt.c @@ -31,6 +31,8 @@ #if HAVE_LIBMCRYPT +#include "fcntl.h" + #include "php_mcrypt.h" #include "lcrypt.h" @@ -41,6 +43,7 @@ function_entry mcrypt_functions[] = { PHP_FE(mcrypt_cfb, NULL) PHP_FE(mcrypt_get_block_size, NULL) PHP_FE(mcrypt_get_key_size, NULL) + PHP_FE(mcrypt_create_iv, NULL) {0}, }; @@ -74,6 +77,16 @@ static mcrypt_global_struct mcryptg; static int php3_minit_mcrypt(INIT_FUNC_ARGS) { + /* modes for mcrypt_??? routines */ + REGISTER_LONG_CONSTANT("MCRYPT_ENCODE", 0, 0); + REGISTER_LONG_CONSTANT("MCRYPT_DECODE", 1, 0); + + /* sources for mcrypt_create_iv */ + REGISTER_LONG_CONSTANT("MCRYPT_DEV_RANDOM", 0, 0); + REGISTER_LONG_CONSTANT("MCRYPT_DEV_URANDOM", 1, 0); + REGISTER_LONG_CONSTANT("MCRYPT_RAND", 2, 0); + + /* ciphers */ MCRYPT_ENTRY(BLOWFISH); MCRYPT_ENTRY(DES); MCRYPT_ENTRY(TripleDES); @@ -91,6 +104,52 @@ static int php3_minit_mcrypt(INIT_FUNC_ARGS) return SUCCESS; } +typedef enum { + RANDOM = 0, + URANDOM, + RAND +} iv_source; + +/* proto mcrypt_create_iv(int size, int source) + create an initializing vector (IV) */ +PHP_FUNCTION(mcrypt_create_iv) +{ + pval *size, *psource; + char *iv; + iv_source source; + int i; + + if(ARG_COUNT(ht) != 2 || getParameters(ht, 2, &size, &psource) == FAILURE) { + WRONG_PARAM_COUNT; + } + + convert_to_long(size); + convert_to_long(psource); + source = psource->value.lval; + + i = size->value.lval; + iv = ecalloc(i, 1); + + if(source == RANDOM || source == URANDOM) { + int fd; + + fd = open(source == RANDOM ? "/dev/random" : "/dev/urandom", + O_RDONLY); + if(fd < 0) { + efree(iv); + php3_error(E_WARNING, "cannot open source device"); + RETURN_FALSE; + } + read(fd, iv, i); + close(fd); + } else { + while(i--) { + iv[i] = rand(); + } + } + RETURN_STRINGL(iv, size->value.lval, 0); +} + /* proto mcrypt_get_key_size(int cipher) get the key size of cipher */ PHP_FUNCTION(mcrypt_get_key_size) |