segmentation fault

[pathfino]

hi all,

i am having a segmentation fault while calling a class function.
can you please advise me where i do wrong.

thank you in advance.

class function:
int IstcmsUtil::generateCvv(OC_Map_Type &inparams, char *cvv)

program call:
istcmsApp->istcmsUtil->generateCvv(cparams, gcvv);

debug core:
/development/bin>dbx embutil core

Segmentation fault in emb_fmtembfile(long) at line 635 in file "/development/src/embutil.cxx" ($t1)
635 istcmsApp->istcmsUtil->generateCvv(cparams, gcvv);
(dbx)

[Albatross]

We can't help much unless we see line 635, and preferably also any code related to it.

-Albatross

[helios]

Without knowing your program intimately, there's no way to know for sure what caused it. Every time you freed memory or you dereferenced a pointer, there's a chance memory got corrupted. Start looking at the place where the segfault occurred, check your pointers and parameters for validity, then move outwards.

[pathfino]

hi Albatross,

part of my program code:

OC_Map_Type cparams;
OCString inst;
char gcvv[CMS_CVV_LEN + 1];

cparams[CMS_PAN] = OCString(vpan);
cparams[CMS_INSTITUTION] = OCString(vinst_id);
cparams[CMS_LANG] = OCString(istcmsApp->istcmsUtil->getInstParam(inst, "istcms.default_lang"));
cparams[CMS_LANG] = OCString(vdefault_lang_code);
cparams[CMS_ICC_INDICATOR] = OCString(vicc_indicator);
cparams[CMS_CARD_CATEGORY] = OCString(vcard_category);
cparams[CMS_REGION_CODE] = OCString(vregion);
cparams[CMS_EXP_DATE] = OCString(vexpirydate);
cparams[CMS_SERVICE_CODE] = OCString(vservice_code);

printf("aft OTraceDebug\n");
istcmsApp->istcmsUtil->generateCvv(cparams, gcvv); --- line 635
printf("aft generateCvv\n");
strncpy (&pebf->eb.track2.cvv[0], &gcvv[0], 3);
printf("aft eb.track2.cvv\n");

part of the class function code:

int IstcmsUtil::generateCvv(OC_Map_Type &inparams, char *cvv)
{
PINVERPARM *pinparm;

char prefix[11], base[11], addon_seq[5], reiss_seq[5], card_seq[5];
char branch[5], track2[120] = {0};
int ret = 0;

char *instid = (char *) inparams[CMS_INSTITUTION];
char *pan = (char *) inparams[CMS_PAN];

[JoR]

I guess istcmsApp or istcmsUtil don't point to the right adress. You could ask the debugger of your choice which one of them. Seeing more code, I might be able to tell you more.

[pathfino]

hi JoR

you are right! istcmsApp don't point to the right address.
thank you very much.

i did a printf to find it out.
printf("%x %x\n", istcmsApp , istcmsApp->istcmsUtil )