Accept NULL in *_free.
diff --git a/CHANGES b/CHANGES index 882b247..8bda119 100644 --- a/CHANGES +++ b/CHANGES
@@ -5,6 +5,9 @@ Changes between 0.9.1c and 0.9.2 + *) Make _all_ *_free functions accept a NULL pointer. + [Frans Heymans <fheymans@isaserver.be>] + *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use NULL pointers. [Anonymous <nobody@replay.com>]
diff --git a/crypto/asn1/p7_lib.c b/crypto/asn1/p7_lib.c index 06e1da4..4ab6477 100644 --- a/crypto/asn1/p7_lib.c +++ b/crypto/asn1/p7_lib.c
@@ -267,6 +267,9 @@ void PKCS7_content_free(a) PKCS7 *a; { + if(a == NULL) + return; + if (a->asn1 != NULL) Free((char *)a->asn1); if (a->d.ptr != NULL)
diff --git a/crypto/asn1/x_name.c b/crypto/asn1/x_name.c index 3b8bc51..3af14c8 100644 --- a/crypto/asn1/x_name.c +++ b/crypto/asn1/x_name.c
@@ -263,6 +263,9 @@ void X509_NAME_free(a) X509_NAME *a; { + if(a == NULL) + return; + BUF_MEM_free(a->bytes); sk_pop_free(a->entries,X509_NAME_ENTRY_free); Free((char *)a);
diff --git a/crypto/bio/b_sock.c b/crypto/bio/b_sock.c index 2c36150..402439c 100644 --- a/crypto/bio/b_sock.c +++ b/crypto/bio/b_sock.c
@@ -310,6 +310,9 @@ { int i; + if(a == NULL) + return; + if (a->h_aliases != NULL) { for (i=0; a->h_aliases[i] != NULL; i++)
diff --git a/crypto/bio/bss_acpt.c b/crypto/bio/bss_acpt.c index 872807d..ecdd170 100644 --- a/crypto/bio/bss_acpt.c +++ b/crypto/bio/bss_acpt.c
@@ -173,6 +173,9 @@ void BIO_ACCEPT_free(a) BIO_ACCEPT *a; { + if(a == NULL) + return; + if (a->param_addr != NULL) Free(a->param_addr); if (a->addr != NULL) Free(a->addr); if (a->bio_chain != NULL) BIO_free(a->bio_chain);
diff --git a/crypto/bio/bss_conn.c b/crypto/bio/bss_conn.c index 3ec1388..b90fea1 100644 --- a/crypto/bio/bss_conn.c +++ b/crypto/bio/bss_conn.c
@@ -357,6 +357,9 @@ void BIO_CONNECT_free(a) BIO_CONNECT *a; { + if(a == NULL) + return; + if (a->param_hostname != NULL) Free(a->param_hostname); if (a->param_port != NULL)
diff --git a/crypto/bn/bn_blind.c b/crypto/bn/bn_blind.c index 35be32b..c247f71 100644 --- a/crypto/bn/bn_blind.c +++ b/crypto/bn/bn_blind.c
@@ -90,6 +90,9 @@ void BN_BLINDING_free(r) BN_BLINDING *r; { + if(r == NULL) + return; + if (r->A != NULL) BN_free(r->A ); if (r->Ai != NULL) BN_free(r->Ai); Free(r);
diff --git a/crypto/bn/bn_lib.c b/crypto/bn/bn_lib.c index c027d0b..d8d2c32 100644 --- a/crypto/bn/bn_lib.c +++ b/crypto/bn/bn_lib.c
@@ -341,6 +341,9 @@ { int i; + if(c == NULL) + return; + for (i=0; i<BN_CTX_NUM; i++) BN_clear_free(&(c->bn[i])); if (c->flags & BN_FLG_MALLOCED)
diff --git a/crypto/bn/bn_mont.c b/crypto/bn/bn_mont.c index a5640b5..2215dc3 100644 --- a/crypto/bn/bn_mont.c +++ b/crypto/bn/bn_mont.c
@@ -289,6 +289,9 @@ void BN_MONT_CTX_free(mont) BN_MONT_CTX *mont; { + if(mont == NULL) + return; + BN_free(&(mont->RR)); BN_free(&(mont->N)); BN_free(&(mont->Ni));
diff --git a/crypto/bn/bn_recp.c b/crypto/bn/bn_recp.c index 97ca857..3ace566 100644 --- a/crypto/bn/bn_recp.c +++ b/crypto/bn/bn_recp.c
@@ -84,6 +84,9 @@ void BN_RECP_CTX_free(recp) BN_RECP_CTX *recp; { + if(recp == NULL) + return; + BN_free(&(recp->N)); BN_free(&(recp->Nr)); if (recp->flags & BN_FLG_MALLOCED)
diff --git a/crypto/buffer/buffer.c b/crypto/buffer/buffer.c index 7e8af9e..b160a74 100644 --- a/crypto/buffer/buffer.c +++ b/crypto/buffer/buffer.c
@@ -79,6 +79,9 @@ void BUF_MEM_free(a) BUF_MEM *a; { + if(a == NULL) + return; + if (a->data != NULL) { memset(a->data,0,(unsigned int)a->max);
diff --git a/crypto/comp/comp_lib.c b/crypto/comp/comp_lib.c index 8ce0695..dcacb55 100644 --- a/crypto/comp/comp_lib.c +++ b/crypto/comp/comp_lib.c
@@ -33,6 +33,9 @@ { /* CRYPTO_free_ex_data(rsa_meth,(char *)ctx,&ctx->ex_data); */ + if(ctx == NULL) + return; + if (ctx->meth->finish != NULL) ctx->meth->finish(ctx);
diff --git a/crypto/err/err.c b/crypto/err/err.c index 5cf6218..39c997a 100644 --- a/crypto/err/err.c +++ b/crypto/err/err.c
@@ -175,6 +175,9 @@ { int i; + if(s == NULL) + return; + for (i=0; i<ERR_NUM_ERRORS; i++) { err_clear_data(s,i);
diff --git a/crypto/rsa/rsa_eay.c b/crypto/rsa/rsa_eay.c index ec143e8..b405050 100644 --- a/crypto/rsa/rsa_eay.c +++ b/crypto/rsa/rsa_eay.c
@@ -474,8 +474,7 @@ err: BN_clear_free(&m1); BN_clear_free(&r1); - if(ctx) - BN_CTX_free(ctx); + BN_CTX_free(ctx); return(ret); }
diff --git a/crypto/rsa/rsa_enc.c b/crypto/rsa/rsa_enc.c index 5f91239..c4a4ad5 100644 --- a/crypto/rsa/rsa_enc.c +++ b/crypto/rsa/rsa_enc.c
@@ -531,8 +531,7 @@ err: if (m1 != NULL) BN_free(m1); if (r1 != NULL) BN_free(r1); - if(ctx != NULL) - BN_CTX_free(ctx); + BN_CTX_free(ctx); return(ret); }
diff --git a/crypto/txt_db/txt_db.c b/crypto/txt_db/txt_db.c index e4259d9..dccb2b9 100644 --- a/crypto/txt_db/txt_db.c +++ b/crypto/txt_db/txt_db.c
@@ -356,6 +356,9 @@ int i,n; char **p,*max; + if(db == NULL) + return; + if (db->index != NULL) { for (i=db->num_fields-1; i>=0; i--)
diff --git a/crypto/x509/x509_lu.c b/crypto/x509/x509_lu.c index deec5ad..8ea6819 100644 --- a/crypto/x509/x509_lu.c +++ b/crypto/x509/x509_lu.c
@@ -259,6 +259,9 @@ STACK *sk; X509_LOOKUP *lu; + if(vfy == NULL) + return; + sk=vfy->get_cert_methods; for (i=0; i<sk_num(sk); i++) {
diff --git a/ssl/s2_lib.c b/ssl/s2_lib.c index 51f6861..097c35e 100644 --- a/ssl/s2_lib.c +++ b/ssl/s2_lib.c
@@ -257,6 +257,9 @@ { SSL2_CTX *s2; + if(s == NULL) + return; + s2=s->s2; if (s2->rbuf != NULL) Free(s2->rbuf); if (s2->wbuf != NULL) Free(s2->wbuf);
diff --git a/ssl/s3_enc.c b/ssl/s3_enc.c index 116b096..ea8e39e 100644 --- a/ssl/s3_enc.c +++ b/ssl/s3_enc.c
@@ -208,6 +208,7 @@ p=s->s3->tmp.key_block; i=EVP_MD_size(m); + // Should be j=exp?min(5,EVP_CIPHER_key_length(c)):EVP_CIPHER_key_length(c); ?? - Ben 30/12/98 j=(exp)?5:EVP_CIPHER_key_length(c); k=EVP_CIPHER_iv_length(c); if ( (which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
diff --git a/ssl/s3_lib.c b/ssl/s3_lib.c index a523207..f15bb24 100644 --- a/ssl/s3_lib.c +++ b/ssl/s3_lib.c
@@ -456,6 +456,9 @@ void ssl3_free(s) SSL *s; { + if(s == NULL) + return; + ssl3_cleanup_key_block(s); if (s->s3->rbuf.buf != NULL) Free(s->s3->rbuf.buf);
diff --git a/ssl/ssl_cert.c b/ssl/ssl_cert.c index 1bff91e..7d4531d 100644 --- a/ssl/ssl_cert.c +++ b/ssl/ssl_cert.c
@@ -105,6 +105,9 @@ { int i; + if(c == NULL) + return; + i=CRYPTO_add(&c->references,-1,CRYPTO_LOCK_SSL_CERT); #ifdef REF_PRINT REF_PRINT("CERT",c);
diff --git a/ssl/ssl_comp.c b/ssl/ssl_comp.c index 7724ff5..1593afb 100644 --- a/ssl/ssl_comp.c +++ b/ssl/ssl_comp.c
@@ -361,6 +361,9 @@ { int i; + if(ss == NULL) + return; + i=CRYPTO_add(&ss->references,-1,CRYPTO_LOCK_SSL_SESSION); #ifdef REF_PRINT REF_PRINT("SSL_SESSION",ss);
diff --git a/ssl/ssl_lib.c b/ssl/ssl_lib.c index e562330..9e578fd 100644 --- a/ssl/ssl_lib.c +++ b/ssl/ssl_lib.c
@@ -203,6 +203,9 @@ { int i; + if(s == NULL) + return; + i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL); #ifdef REF_PRINT REF_PRINT("SSL",s);
diff --git a/ssl/ssl_sess.c b/ssl/ssl_sess.c index d4978a7..95cd7fe 100644 --- a/ssl/ssl_sess.c +++ b/ssl/ssl_sess.c
@@ -363,6 +363,9 @@ { int i; + if(ss == NULL) + return; + i=CRYPTO_add(&ss->references,-1,CRYPTO_LOCK_SSL_SESSION); #ifdef REF_PRINT REF_PRINT("SSL_SESSION",ss);