Hi, all:
Now I want to retrieve user certificate from Mozilla which had been
installed into its db, and those certificates could be checked from Mozilla
menu: "Edit->Preferences->Privacy&Security->Certificate" or similar ways.
Via the following function I hope to get user certificate:
(Notice: macro "DBG_VIEW" record my debug information only.)
Now, my problem is "CERT_GetDefaultCertDB" return NULL. And I do not
catch it with more message. Could anybody instruct me to change my settings
or what to do in my program? Where could I learn about it? Where could I get
more examples about these?
/**--------------------------------------------------begin function*/
int GetCert(char *strCertSubjectCN, char *strSN, char *strCertContent, int
*nCertLen)
{
DBG_VIEW("Enter:+++++++GetCert: strCertSubjectCN=%s\nstrSN=%s\n",
strCertSubjectCN, strSN);
CERTCertDBHandle *certdb = NULL;
void *libc = NULL;
int rv = S_OK;
try
{
if(certdb == NULL)
{
libc = dlopen("libnss3.so",RTLD_NOW | RTLD_LOCAL);
if(libc == NULL)
{
DBG_VIEW("dlopen libnss3.so failed!\n");
throw (rv = E_LIB_NOT_FOUND);
}
CERTCertDBHandle* (*CERT_GetDefaultCertDB)(void);
CERT_GetDefaultCertDB = (CERTCertDBHandle *(*) ())dlsym(libc,
"CERT_GetDefaultCertDB");
if(CERT_GetDefaultCertDB == NULL)
{
DBG_VIEW("CERT_GetDefaultCertDB == NULL\n");
throw (rv = E_EXCEPTIONAL);
}
certdb = (*CERT_GetDefaultCertDB)();
if(certdb == NULL)
{
DBG_VIEW("certdb == NULL\n");
throw (rv = E_CERT_STORE_NO_EXIST);
}
DBG_VIEW("certdb=0x%08X\n", certdb);
char *strROOTCA = "ROOTCA";
CERTIssuerAndSN issuerAndSN;
CERTCertificate *usercert;
CERTCertificate *(*CERT_FindCertByNameString)(CERTCertDBHandle *handle,
char *name);
CERT_FindCertByNameString = (CERTCertificate *(*) (CERTCertDBHandle *,
char *))dlsym(libc, "CERT_FindCertByNameString");
usercert = CERT_FindCertByNameString(certdb,strROOTCA);
if (usercert == NULL)
{
DBG_VIEW("usercert == NULL\n");
throw( rv = E_CERT_STORE_NO_EXIST);
}
/*-- more done with how to return user certificate.*/.
}
}
catch(...)
{
}
SECStatus (*NSS_Shutdown)(void);
NSS_Shutdown = (SECStatus (*)())dlsym(libc, "NSS_Shutdown");
NSS_Shutdown();
dlclose(libc);
DBG_VIEW("Exit:------GetUCertfromCertDb::GetCert.\n");
return rv;
}
/**----------------------------------------------------end function*/
Best regards.
Thankful
boise
_______________________________________________
mozilla-crypto mailing list
mozilla-crypto@mozilla.org
http://mail.mozilla.org/listinfo/mozilla-crypto
