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Move the registration of callback functions to special functions

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designed for that.  This removes the potential error to mix data and
function pointers.

Please note that I'm a little unsure how incorrect calls to the old
ctrl functions should be handled, in som cases.  I currently return 0
and that's it, but it may be more correct to generate a genuine error
in those cases.
This commit is contained in:
Richard Levitte
2000-02-20 23:43:02 +00:00
parent dab6f09573
commit d3442bc780
28 changed files with 385 additions and 78 deletions
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17
crypto/evp/bio_md.c
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@@ -72,6 +72,8 @@ static int md_gets(BIO *h,char *str,int size);
static long md_ctrl(BIO *h,int cmd,long arg1,char *arg2);
static int md_new(BIO *h);
static int md_free(BIO *data);
static long md_callback_ctrl(BIO *h,int cmd,void (*fp)());
static BIO_METHOD methods_md=
{
BIO_TYPE_MD,"message digest",
@@ -82,6 +84,7 @@ static BIO_METHOD methods_md=
md_ctrl,
md_new,
md_free,
md_callback_ctrl,
};
BIO_METHOD *BIO_f_md(void)
@@ -220,6 +223,20 @@ static long md_ctrl(BIO *b, int cmd, long num, char *ptr)
return(ret);
}
static long md_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 md_gets(BIO *bp, char *buf, int size)
{
EVP_MD_CTX *ctx;