Problem - Kevin Tafuro

#include
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char *spc_cert_filename(char *path, X509 *cert) {
int length;
char *filename;
length = strlen(path) + 11;
if (!(filename = (char *)malloc(length + 1))) return 0;
snprintf(filename, length + 1, "%s/%08lx.0", path, X509_subject_name_hash(cert));
return filename;
}
int spc_remember_cert(char *path, X509 *cert) {
int result;
char *filename;
FILE *fp;
if (!(filename = spc_cert_filename(path, cert))) return 0;
if (!(fp = fopen(filename, "w"))) {
free(filename);
return 0;
}
result = PEM_write_X509(fp, cert);
fclose(fp);
if (!result) remove(filename);
free(filename);
return result;
}
int spc_verifyandmaybesave_callback(int ok, X509_STORE_CTX *store) {
int err;
SSL *ssl_ptr;
char answer[80], name[256];
X509 *cert;
SSL_CTX *ctx;
spc_x509store_t *spc_store;
if (ok) return ok;
cert = X509_STORE_CTX_get_current_cert(store);
printf("An error has occurred with the following certificate:\n");
X509_NAME_oneline(X509_get_issuer_name(cert), name, sizeof(name));
printf(" Issuer Name: %s\n", name);
X509_NAME_oneline(X509_get_subject_name(cert), name, sizeof(name));
printf(" Subject Name: %s\n", name);
err = X509_STORE_CTX_get_error(store);
printf(" Error Reason: %s\n", X509_verify_cert_error_string(err));
for (;;) {
printf("Do you want to [r]eject this certificate, [a]ccept and remember it, "
"or allow\nits use for only this [o]ne time? ");
440 | Chapter 8: Authentication and Key Exchange
This is the Title of the Book, eMatter Edition
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