Add an evil cast, because POSIX/SUSv2 define connect(2) require

[oweals/openssl.git] / crypto / bio / bf_buff.c

diff --git a/crypto/bio/bf_buff.c b/crypto/bio/bf_buff.c
index acd81481389247a8790e628effc9a9f55e7eebc2..ff0c9070ae101422ab094bb36d14e14553777f94 100644 (file)
--- a/crypto/bio/bf_buff.c
+++ b/crypto/bio/bf_buff.c
@@ -69,6 +69,7 @@ static int buffer_gets(BIO *h,char *str,int size);
 static long buffer_ctrl(BIO *h,int cmd,long arg1,char *arg2);
 static int buffer_new(BIO *h);
 static int buffer_free(BIO *data);
+static long buffer_callback_ctrl(BIO *h,int cmd, void (*fp)());
 #define DEFAULT_BUFFER_SIZE    1024
 
 static BIO_METHOD methods_buffer=
@@ -82,6 +83,7 @@ static BIO_METHOD methods_buffer=
        buffer_ctrl,
        buffer_new,
        buffer_free,
+       buffer_callback_ctrl,
        };
 
 BIO_METHOD *BIO_f_buffer(void)
@@ -284,6 +286,7 @@ static long buffer_ctrl(BIO *b, int cmd, long num, char *ptr)
                ctx->ibuf_len=0;
                ctx->obuf_off=0;
                ctx->obuf_len=0;
+               if (b->next_bio == NULL) return(0);
                ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
                break;
        case BIO_CTRL_INFO:
@@ -300,12 +303,18 @@ static long buffer_ctrl(BIO *b, int cmd, long num, char *ptr)
        case BIO_CTRL_WPENDING:
                ret=(long)ctx->obuf_len;
                if (ret == 0)
+                       {
+                       if (b->next_bio == NULL) return(0);
                        ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
+                       }
                break;
        case BIO_CTRL_PENDING:
                ret=(long)ctx->ibuf_len;
                if (ret == 0)
+                       {
+                       if (b->next_bio == NULL) return(0);
                        ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
+                       }
                break;
        case BIO_C_SET_BUFF_READ_DATA:
                if (num > ctx->ibuf_size)
@@ -374,12 +383,14 @@ static long buffer_ctrl(BIO *b, int cmd, long num, char *ptr)
                        }
                break;
        case BIO_C_DO_STATE_MACHINE:
+               if (b->next_bio == NULL) return(0);
                BIO_clear_retry_flags(b);
                ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
                BIO_copy_next_retry(b);
                break;
 
        case BIO_CTRL_FLUSH:
+               if (b->next_bio == NULL) return(0);
                if (ctx->obuf_len <= 0)
                        {
                        ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
@@ -418,6 +429,7 @@ fprintf(stderr,"FLUSH [%3d] %3d -> %3d\n",ctx->obuf_off,ctx->obuf_len-ctx->obuf_
                        ret=0;
                break;
        default:
+               if (b->next_bio == NULL) return(0);
                ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
                break;
                }
@@ -427,6 +439,20 @@ malloc_error:
        return(0);
        }
 
+static long buffer_callback_ctrl(BIO *b, int cmd, void (*fp)())
+       {
+       long ret=1;
+
+       if (b->next_bio == NULL) return(0);
+       switch (cmd)
+               {
+       default:
+               ret=BIO_callback_ctrl(b->next_bio,cmd,fp);
+               break;
+               }
+       return(ret);
+       }
+
 static int buffer_gets(BIO *b, char *buf, int size)
        {
        BIO_F_BUFFER_CTX *ctx;