Problem - Kevin Tafuro

c
Pointer to an integer that will receive the PAM error code if an error occurs.
If the user is authenticated successfully, spc_pam_login( ) will return a non-NULL
pointer to a pam_handle_t context object. Otherwise, it will return NULL, and you
should consult the rc argument for the error code.
#include
#include
static struct pam_conv spc_pam_conv = { misc_conv, 0 };
pam_handle_t *spc_pam_login(const char *service, const char *user, int *rc) {
pam_handle_t *hndl;
if (!service || !user || !rc) {
if (rc) *rc = PAM_ABORT;
return 0;
}
if ((*rc = pam_start(service, user, &spc_pam_conv, &hndl)) != PAM_SUCCESS) {
pam_end(hndl, *rc);
return 0;
}
if ((*rc = pam_authenticate(hndl, PAM_DISALLOW_NULL_AUTHTOK)) != PAM_SUCCESS) {
pam_end(hndl, *rc);
return 0;
}
*rc = pam_acct_mgmt(hndl, 0);
if (*rc = = PAM_NEW_AUTHTOK_REQD) {
pam_chauthtok(hndl, PAM_CHANGE_EXPIRED_AUTHTOK);
*rc = pam_acct_mgmt(hndl, 0);
}
if (*rc != PAM_SUCCESS) {
pam_end(hndl, *rc);
return 0;
}
if ((*rc = pam_setcred(hndl, PAM_ESTABLISH_CRED)) != PAM_SUCCESS) {
pam_end(hndl, *rc);
return 0;
}
if ((*rc = pam_open_session(hndl, 0)) != PAM_SUCCESS) {
pam_end(hndl, *rc);
return 0;
}
/* no need to set *rc to PAM_SUCCESS; we wouldn't be here if it weren't */
return hndl;
}
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Authenticating with PAM | 413