Hi,
I wrote a program in VC++ 6 to read a X509
certificates from a file but I when I was linking it I
received a lot of "Unresolved External <func> in
<module>. I tried to find the file in which each of
unresolved functions was declared and added them to my
project but again I received another errors for
another functions. This is too time consuming and
boring. Does anybody know a solution for this problem?
Thanks in advance,
Here is my source code and error listing.
#include "stdafx.h"
#include "crypto\x509\x509.h"
#include "crypto\pem\pem.h"
#include "crypto\bio\bio.h"
#include "crypto\crypto.h"
int main(int argc, char* argv[])
{
BIO *hbio;
X509 *mycert;
hbio = BIO_new_file"d:/crypto/cert.pem", "r");
mycert = PEM_read_bio_X509(hbio, NULL, NULL, NULL);
if (mycert){
printf("ok\n");
// do something with this certificate
X509_free(mycert);
mycert = NULL;
}
else{
printf("failed\n");
}
if (hbio) BIO_free(hbio);
return 0;
}
Error listing:
Linking...
bio_lib.obj : error LNK2001: unresolved external
symbol _ERR_put_error
bss_file.obj : error LNK2001: unresolved external
symbol _ERR_put_error
pem_oth.obj : error LNK2001: unresolved external
symbol _ERR_put_error
bio_lib.obj : error LNK2001: unresolved external
symbol _CRYPTO_free_ex_data
bio_lib.obj : error LNK2001: unresolved external
symbol _CRYPTO_new_ex_data
bio_lib.obj : error LNK2001: unresolved external
symbol _CRYPTO_add_lock
bio_lib.obj : error LNK2001: unresolved external
symbol _CRYPTO_dup_ex_data
bio_lib.obj : error LNK2001: unresolved external
symbol _CRYPTO_get_ex_new_index
bio_lib.obj : error LNK2001: unresolved external
symbol _CRYPTO_set_ex_data
bio_lib.obj : error LNK2001: unresolved external
symbol _CRYPTO_get_ex_data
bss_file.obj : error LNK2001: unresolved external
symbol _ERR_add_error_data
bss_file.obj : error LNK2001: unresolved external
symbol _BUF_strlcpy
myapp1.obj : error LNK2001: unresolved external symbol
_PEM_read_bio_X509
pem_oth.obj : error LNK2001: unresolved external
symbol _PEM_bytes_read_bio
mem.obj : error LNK2001: unresolved external symbol
_cleanse_ctr
mem.obj : error LNK2001: unresolved external symbol
_cleanse_ctr
mem.obj : error LNK2001: unresolved external symbol
_OPENSSL_cleanse
Debug/myapp1.exe : fatal error LNK1120: 14 unresolved
externals
Error executing link.exe.
myapp1.exe - 18 error(s), 0 warning(s)
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