RE: [dspam-users] Example.c File

Sorry, I have been out for a few days.

>From your code snippet, I don't see where SIG is getting populated, just
declared. The code sets CTX->signature to &SIG, but SIG has nothing in it -
just an empty structure at this point. You need to populate it using the
driver of MySQL.

My advice, what I would have to do, is look at how dspam.c does it. Grep
for "signature" and you should find the answer.

In generic terms, the spam "signature" is really a unique identifier
assigned by the back-end database implementation. In the case of sqlite3,
it takes a hash of the system time and date and assigns that as the
signature of the message. Of course, this assumes only one message is
processed at a given time/date, and I believe this will be changed at some
point in the future. The "CTX->signature" is a pointer to the signature
structure, which is created from this hash by a call.

If you're using pristine mode, no signature is needed, and no signature is
generated.

Spend some time with dspam.c and it should help. I think that's kinda what
everyone else does that programs directly to the API.

Russ

>>>int report_spam(int spamflag) {
>>>
>>> int sflag = 0;
>>> char * message = malloc(1);
>>> DSPAM_CTX * CTX = NULL; /** DSPAM Context */
>>> struct _ds_spam_signature SIG; /** Example signature */
>>>
>>> message = read_emailmem(message);
>>>
>>> switch (spamflag) {
>>> case SPAMREPT: /** set up the context for error correction as
>>>spam */
>>> log_write(0, LOG_MAIN, "LOG: SPAMREPT function reached");
>>> CTX = dspam_create((char *)sender_address, NULL, NULL,
>>>DSM_PROCESS, DSF_CHAINED);
>>> CTX = attach_ctx_dbaccess(CTX);
>>> if (CTX == NULL) {
>>> log_write(0, LOG_MAIN, "ERROR: dspam_create failed!\n");
>>> sflag = 1;
>>> }
>>> CTX->classification = DSR_ISSPAM;
>>> CTX->source = DSS_ERROR;
>>> CTX->algorithms = DSA_GRAHAM | DSA_BURTON | DSP_GRAHAM;
>>> break;
>>> case FALSEPOS: /** set up the context for error correction as
>>>innocent */
>>> log_write(0, LOG_MAIN, "LOG: FALSEPOS function reached");
>>> CTX = dspam_create((char *)sender_address, NULL, NULL,
>>>DSM_PROCESS, DSF_CHAINED | DSF_SIGNATURE);
>>> CTX = attach_ctx_dbaccess(CTX);
>>> if (CTX == NULL) {
>>> log_write(0, LOG_MAIN, "ERROR: dspam_create failed!\n");
>>> sflag = 1;
>>> }
>>> CTX->classification = DSR_ISINNOCENT;
>>> CTX->source = DSS_ERROR;
>>> CTX->algorithms = DSA_GRAHAM | DSA_BURTON | DSP_GRAHAM;
>>> CTX->signature = &SIG; /** Attach the signature to the
>>>context */
>>> break;
>>> default: /** no reporting required, scan for spam perhaps ? */
>>> log_write(0, LOG_MAIN, "report_spam -> no reporting
>>>required");
>>> break;
>>> }
>>>
>>> log_write(0, LOG_MAIN, "LOG: Processing spam...");
>>> if (dspam_process(CTX, message) != 0) { /** Call DSPAM */
>>> log_write(0, LOG_MAIN, "ERROR: dspam_process failed!");
>>> sflag = 1;
>>> }
>>>
>>> log_write(0, LOG_MAIN, "ERROR: report_spam: dspam_destroy
>>>beginning");
>>> dspam_destroy(CTX); /** Destroy the context */
>>>
>>> memset(message, 0x0, sizeof(message));
>>> free(message);
>>> memset(&CTX, 0x0, sizeof(CTX));
>>> free(CTX);
>>>
>>> if (sflag == 0) {
>>> log_write(0, LOG_MAIN, "<= %s [%s] P=%s A=%s:%s",
>>> (char *)sender_address, (char *)sender_host_address, (char
>>>*)received_protocol,
>>> (char *)sender_host_authenticated, (char *)sender_address);
>>> log_write(0, LOG_MAIN, "=> (null) <%s> R=system_localuser
>>>T=local_delivery",
>>> (char *)recipients_list[0].address);
>>> }
>>>
>>> /** if we are reporting, which is pretty much so if you reach here,
>>>we blackhole the email */
>>> recipients_count = 0;
>>>
>>> return(sflag);
>>>} /** report_spam */
Received on Wed Sep 7 11:22:29 2005