openssl/perl/openssl_cipher.xs
Richard Levitte 95ffe86dbc Perl code patch contributed by "Kurt J. Pires" <kjpires@iat.com>
His own words are:

The patch adds no new functionality (other than a simple test package)
to the libraries, but it allows them to be compiled with Perl5.6.0.
It has only been tested under "Red Hat Linux release 7.0 (Guinness)"
with the unpatched verion of OpenSSL 0.9.6 released last September.
2001-02-19 09:29:53 +00:00

155 lines
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#include "openssl.h"
int boot_cipher()
{
SSLeay_add_all_ciphers();
return(1);
}
MODULE = OpenSSL::Cipher PACKAGE = OpenSSL::Cipher PREFIX = p5_EVP_C_
PROTOTYPES: ENABLE
VERSIONCHECK: DISABLE
void
p5_EVP_C_new(...)
PREINIT:
EVP_CIPHER_CTX *ctx;
const EVP_CIPHER *c;
char *name;
PPCODE:
if ((items == 1) && SvPOK(ST(0)))
name=SvPV_nolen(ST(0));
else if ((items == 2) && SvPOK(ST(1)))
name=SvPV_nolen(ST(1));
else
croak("Usage: OpenSSL::Cipher::new(type)");
PUSHs(sv_newmortal());
c=EVP_get_cipherbyname(name);
if (c != NULL)
{
ctx=malloc(sizeof(EVP_CIPHER_CTX));
EVP_EncryptInit(ctx,c,NULL,NULL);
sv_setref_pv(ST(0), "OpenSSL::Cipher", (void*)ctx);
}
datum
p5_EVP_C_name(ctx)
EVP_CIPHER_CTX *ctx
CODE:
RETVAL.dptr=OBJ_nid2ln(EVP_CIPHER_CTX_nid(ctx));
RETVAL.dsize=strlen(RETVAL.dptr);
OUTPUT:
RETVAL
int
p5_EVP_C_key_length(ctx)
EVP_CIPHER_CTX *ctx
CODE:
RETVAL=EVP_CIPHER_CTX_key_length(ctx);
OUTPUT:
RETVAL
int
p5_EVP_C_iv_length(ctx)
EVP_CIPHER_CTX *ctx
CODE:
RETVAL=EVP_CIPHER_CTX_iv_length(ctx);
OUTPUT:
RETVAL
int
p5_EVP_C_block_size(ctx)
EVP_CIPHER_CTX *ctx
CODE:
RETVAL=EVP_CIPHER_CTX_block_size(ctx);
OUTPUT:
RETVAL
void
p5_EVP_C_init(ctx,key,iv,enc)
EVP_CIPHER_CTX *ctx
datum key
datum iv
int enc
PREINIT:
char loc_iv[EVP_MAX_IV_LENGTH];
char loc_key[EVP_MAX_KEY_LENGTH];
char *ip=loc_iv,*kp=loc_key;
int i;
memset(loc_iv,0,EVP_MAX_IV_LENGTH);
memset(loc_key,0,EVP_MAX_KEY_LENGTH);
CODE:
i=key.dsize;
if (key.dsize > EVP_CIPHER_CTX_key_length(ctx))
i=EVP_CIPHER_CTX_key_length(ctx);
if (i > 0)
{
memset(kp,0,EVP_MAX_KEY_LENGTH);
memcpy(kp,key.dptr,i);
}
else
kp=NULL;
i=iv.dsize;
if (iv.dsize > EVP_CIPHER_CTX_iv_length(ctx))
i=EVP_CIPHER_CTX_iv_length(ctx);
if (i > 0)
{
memcpy(ip,iv.dptr,i);
memset(ip,0,EVP_MAX_IV_LENGTH);
}
else
ip=NULL;
EVP_CipherInit(ctx,EVP_CIPHER_CTX_cipher(ctx),kp,ip,enc);
memset(loc_key,0,sizeof(loc_key));
memset(loc_iv,0,sizeof(loc_iv));
SV *
p5_EVP_C_cipher(ctx,in)
EVP_CIPHER_CTX *ctx;
datum in;
CODE:
RETVAL=newSVpv("",0);
SvGROW(RETVAL,in.dsize+EVP_CIPHER_CTX_block_size(ctx)+1);
EVP_Cipher(ctx,SvPV_nolen(RETVAL),in.dptr,in.dsize);
SvCUR_set(RETVAL,in.dsize);
OUTPUT:
RETVAL
SV *
p5_EVP_C_update(ctx, in)
EVP_CIPHER_CTX *ctx
datum in
PREINIT:
int i;
CODE:
RETVAL=newSVpv("",0);
SvGROW(RETVAL,in.dsize+EVP_CIPHER_CTX_block_size(ctx)+1);
EVP_CipherUpdate(ctx,SvPV_nolen(RETVAL),&i,in.dptr,in.dsize);
SvCUR_set(RETVAL,i);
OUTPUT:
RETVAL
SV *
p5_EVP_C_final(ctx)
EVP_CIPHER_CTX *ctx
PREINIT:
int i;
CODE:
RETVAL=newSVpv("",0);
SvGROW(RETVAL,EVP_CIPHER_CTX_block_size(ctx)+1);
if (!EVP_CipherFinal(ctx,SvPV_nolen(RETVAL),&i))
sv_setpv(RETVAL,"BAD DECODE");
else
SvCUR_set(RETVAL,i);
OUTPUT:
RETVAL
void
p5_EVP_C_DESTROY(ctx)
EVP_CIPHER_CTX *ctx
CODE:
free((char *)ctx);