On 04/23/18 00:34, Keith Mendoza wrote:
Even with the -std=c89 flag the issue is still present. I was able to replicate
the issue with the following code:
=== BEGIN C CODE ===
#include <stdio.h>
#define OPENSSL_NO_SHA512
#include <openssl/evp.h>
const EVP_MD *getType()
{
const EVP_MD *ret;
ret = (const EVP_MD *)EVP_sha512();
return ret;
}
int main()
{
EVP_MD_CTX ctx;
const EVP_MD *type = NULL;
int retVal = 0;
OpenSSL_add_all_digests();
type = getType();
if(!EVP_DigestInit(&ctx, type))
{
fprintf(stderr, "Failed to init digest\n");
retVal = 1;
goto drop;
}
else
printf("Digest initialized\n");
drop:
EVP_cleanup();
return 0;
}
=== END C CODE ===
Note the #define right before #include <openssl/evp.h>. The darwin*.h files
that I mention earlier are only referenced in INCLUDESUBDIRHEADERS variable in
net-snmp/Makefile.in file. However, after removing those from the list and running
autoreconf, the warning about EVP_sha512 being undeclared--and the crash--are all
still occurring. The only think I can think of at this point is some header that has
#define OPENSSL_NO_SHA512 is in play somewhere.
Hope this helps narrow things down.
Thanks Keith, that helps a lot. Based on this feedback I checked in a
new patch on the v5.7 and master branches. With that patch applied all
tests pass on Travis for Darwin except the full MIB walk.
Bart.
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