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Fix SSL_peek and SSL_pending.
[openssl.git] / ssl / s2_lib.c
diff --git a/ssl/s2_lib.c b/ssl/s2_lib.c
index f473b459f2124414ae6e6195102dec94a06b136a..a89958607cfd2800e03f5d0e90535891fa0ac704 100644 (file)
--- a/ssl/s2_lib.c
+++ b/ssl/s2_lib.c
@@ -56,12 +56,12 @@
  * [including the GNU Public Licence.]
  */
 
-#ifndef NO_RSA
+#include "ssl_locl.h"
+#ifndef NO_SSL2
 #include <stdio.h>
 #include <openssl/rsa.h>
 #include <openssl/objects.h>
 #include <openssl/md5.h>
-#include "ssl_locl.h"
 
 static long ssl2_default_timeout(void );
 const char *ssl2_version_str="SSLv2" OPENSSL_VERSION_PTEXT;
@@ -75,9 +75,12 @@ OPENSSL_GLOBAL SSL_CIPHER ssl2_ciphers[]={
        1,
        SSL2_TXT_NULL_WITH_MD5,
        SSL2_CK_NULL_WITH_MD5,
-       SSL_kRSA|SSL_aRSA|SSL_eNULL|SSL_MD5|SSL_EXP40|SSL_SSLV2,
+       SSL_kRSA|SSL_aRSA|SSL_eNULL|SSL_MD5|SSL_SSLV2,
+       SSL_EXPORT|SSL_EXP40,
+       0,
        0,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 #endif
 /* RC4_128_EXPORT40_WITH_MD5 */
@@ -85,63 +88,91 @@ OPENSSL_GLOBAL SSL_CIPHER ssl2_ciphers[]={
        1,
        SSL2_TXT_RC4_128_EXPORT40_WITH_MD5,
        SSL2_CK_RC4_128_EXPORT40_WITH_MD5,
-       SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_EXP40|SSL_SSLV2,
+       SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_SSLV2,
+       SSL_EXPORT|SSL_EXP40,
        SSL2_CF_5_BYTE_ENC,
+       40,
+       128,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 /* RC4_128_WITH_MD5 */
        {
        1,
        SSL2_TXT_RC4_128_WITH_MD5,
        SSL2_CK_RC4_128_WITH_MD5,
-       SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_NOT_EXP|SSL_SSLV2|SSL_MEDIUM,
+       SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_SSLV2,
+       SSL_NOT_EXP|SSL_MEDIUM,
        0,
+       128,
+       128,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 /* RC2_128_CBC_EXPORT40_WITH_MD5 */
        {
        1,
        SSL2_TXT_RC2_128_CBC_EXPORT40_WITH_MD5,
        SSL2_CK_RC2_128_CBC_EXPORT40_WITH_MD5,
-       SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5|SSL_EXP40|SSL_SSLV2,
+       SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5|SSL_SSLV2,
+       SSL_EXPORT|SSL_EXP40,
        SSL2_CF_5_BYTE_ENC,
+       40,
+       128,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 /* RC2_128_CBC_WITH_MD5 */
        {
        1,
        SSL2_TXT_RC2_128_CBC_WITH_MD5,
        SSL2_CK_RC2_128_CBC_WITH_MD5,
-       SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5|SSL_NOT_EXP|SSL_SSLV2|SSL_MEDIUM,
+       SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5|SSL_SSLV2,
+       SSL_NOT_EXP|SSL_MEDIUM,
        0,
+       128,
+       128,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 /* IDEA_128_CBC_WITH_MD5 */
        {
        1,
        SSL2_TXT_IDEA_128_CBC_WITH_MD5,
        SSL2_CK_IDEA_128_CBC_WITH_MD5,
-       SSL_kRSA|SSL_aRSA|SSL_IDEA|SSL_MD5|SSL_NOT_EXP|SSL_SSLV2|SSL_MEDIUM,
+       SSL_kRSA|SSL_aRSA|SSL_IDEA|SSL_MD5|SSL_SSLV2,
+       SSL_NOT_EXP|SSL_MEDIUM,
        0,
+       128,
+       128,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 /* DES_64_CBC_WITH_MD5 */
        {
        1,
        SSL2_TXT_DES_64_CBC_WITH_MD5,
        SSL2_CK_DES_64_CBC_WITH_MD5,
-       SSL_kRSA|SSL_aRSA|SSL_DES|SSL_MD5|SSL_NOT_EXP|SSL_SSLV2|SSL_LOW,
+       SSL_kRSA|SSL_aRSA|SSL_DES|SSL_MD5|SSL_SSLV2,
+       SSL_NOT_EXP|SSL_LOW,
        0,
+       56,
+       56,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 /* DES_192_EDE3_CBC_WITH_MD5 */
        {
        1,
        SSL2_TXT_DES_192_EDE3_CBC_WITH_MD5,
        SSL2_CK_DES_192_EDE3_CBC_WITH_MD5,
-       SSL_kRSA|SSL_aRSA|SSL_3DES|SSL_MD5|SSL_NOT_EXP|SSL_SSLV2|SSL_HIGH,
+       SSL_kRSA|SSL_aRSA|SSL_3DES|SSL_MD5|SSL_SSLV2,
+       SSL_NOT_EXP|SSL_HIGH,
        0,
+       168,
+       168,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 /* RC4_64_WITH_MD5 */
 #if 1
@@ -149,9 +180,13 @@ OPENSSL_GLOBAL SSL_CIPHER ssl2_ciphers[]={
        1,
        SSL2_TXT_RC4_64_WITH_MD5,
        SSL2_CK_RC4_64_WITH_MD5,
-       SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_SSLV2|SSL_LOW,
+       SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_SSLV2,
+       SSL_NOT_EXP|SSL_LOW,
        SSL2_CF_8_BYTE_ENC,
+       64,
+       64,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 #endif
 /* NULL SSLeay (testing) */
@@ -161,7 +196,11 @@ OPENSSL_GLOBAL SSL_CIPHER ssl2_ciphers[]={
        SSL2_TXT_NULL,
        SSL2_CK_NULL,
        0,
+       0,
+       0,
+       0,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 #endif
 
@@ -191,6 +230,9 @@ static SSL_METHOD SSLv2_data= {
        ssl_bad_method,
        ssl2_default_timeout,
        &ssl3_undef_enc_method,
+       ssl_undefined_function,
+       ssl2_callback_ctrl,     /* local */
+       ssl2_ctx_callback_ctrl, /* local */
        };
 
 static long ssl2_default_timeout(void)
@@ -223,15 +265,21 @@ int ssl2_pending(SSL *s)
 
 int ssl2_new(SSL *s)
        {
-       SSL2_CTX *s2;
+       SSL2_STATE *s2;
 
-       if ((s2=(SSL2_CTX *)Malloc(sizeof(SSL2_CTX))) == NULL) goto err;
-       memset(s2,0,sizeof(SSL2_CTX));
+       if ((s2=OPENSSL_malloc(sizeof *s2)) == NULL) goto err;
+       memset(s2,0,sizeof *s2);
 
-       if ((s2->rbuf=(unsigned char *)Malloc(
-               SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2)) == NULL) goto err;
-       if ((s2->wbuf=(unsigned char *)Malloc(
+#if SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER + 3 > SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER + 2
+#  error "assertion failed"
+#endif
+
+       if ((s2->rbuf=OPENSSL_malloc(
                SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2)) == NULL) goto err;
+       /* wbuf needs one byte more because when using two-byte headers,
+        * we leave the first byte unused in do_ssl_write (s2_pkt.c) */
+       if ((s2->wbuf=OPENSSL_malloc(
+               SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+3)) == NULL) goto err;
        s->s2=s2;
 
        ssl2_clear(s);
@@ -239,31 +287,31 @@ int ssl2_new(SSL *s)
 err:
        if (s2 != NULL)
                {
-               if (s2->wbuf != NULL) Free(s2->wbuf);
-               if (s2->rbuf != NULL) Free(s2->rbuf);
-               Free(s2);
+               if (s2->wbuf != NULL) OPENSSL_free(s2->wbuf);
+               if (s2->rbuf != NULL) OPENSSL_free(s2->rbuf);
+               OPENSSL_free(s2);
                }
        return(0);
        }
 
 void ssl2_free(SSL *s)
        {
-       SSL2_CTX *s2;
+       SSL2_STATE *s2;
 
        if(s == NULL)
            return;
 
        s2=s->s2;
-       if (s2->rbuf != NULL) Free(s2->rbuf);
-       if (s2->wbuf != NULL) Free(s2->wbuf);
-       memset(s2,0,sizeof(SSL2_CTX));
-       Free(s2);
+       if (s2->rbuf != NULL) OPENSSL_free(s2->rbuf);
+       if (s2->wbuf != NULL) OPENSSL_free(s2->wbuf);
+       memset(s2,0,sizeof *s2);
+       OPENSSL_free(s2);
        s->s2=NULL;
        }
 
 void ssl2_clear(SSL *s)
        {
-       SSL2_CTX *s2;
+       SSL2_STATE *s2;
        unsigned char *rbuf,*wbuf;
 
        s2=s->s2;
@@ -271,7 +319,7 @@ void ssl2_clear(SSL *s)
        rbuf=s2->rbuf;
        wbuf=s2->wbuf;
 
-       memset(s2,0,sizeof(SSL2_CTX));
+       memset(s2,0,sizeof *s2);
 
        s2->rbuf=rbuf;
        s2->wbuf=wbuf;
@@ -296,11 +344,21 @@ long ssl2_ctrl(SSL *s, int cmd, long larg, char *parg)
        return(ret);
        }
 
+long ssl2_callback_ctrl(SSL *s, int cmd, void (*fp)())
+       {
+       return(0);
+       }
+
 long ssl2_ctx_ctrl(SSL_CTX *ctx, int cmd, long larg, char *parg)
        {
        return(0);
        }
 
+long ssl2_ctx_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
+       {
+       return(0);
+       }
+
 /* This function needs to check if the ciphers required are actually
  * available */
 SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p)
@@ -332,7 +390,7 @@ SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p)
        cpp=(SSL_CIPHER **)OBJ_bsearch((char *)&cp,
                (char *)sorted,
                SSL2_NUM_CIPHERS,sizeof(SSL_CIPHER *),
-               (int (*)())ssl_cipher_ptr_id_cmp);
+               FP_ICC ssl_cipher_ptr_id_cmp);
        if ((cpp == NULL) || !(*cpp)->valid)
                return(NULL);
        else
@@ -372,7 +430,7 @@ void ssl2_generate_key_material(SSL *s)
                MD5_Init(&ctx);
 
                MD5_Update(&ctx,s->session->master_key,s->session->master_key_length);
-               MD5_Update(&ctx,(unsigned char *)&c,1);
+               MD5_Update(&ctx,&c,1);
                c++;
                MD5_Update(&ctx,s->s2->challenge,s->s2->challenge_length);
                MD5_Update(&ctx,s->s2->conn_id,s->s2->conn_id_length);
@@ -421,7 +479,7 @@ int ssl2_shutdown(SSL *s)
        s->shutdown=(SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
        return(1);
        }
-#else /* !NO_RSA */
+#else /* !NO_SSL2 */
 
 # if PEDANTIC
 static void *dummy=&dummy;
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