Thanks Dave.. With fclose() it is working fine :) Thank you very much for your inputs...I shall follow them
Dave Thompson-5 wrote: > >> From: owner-openssl-us...@openssl.org On Behalf Of praveenpvs >> Sent: Tuesday, 21 February, 2012 10:24 > >> When I extracted the public key and saved to file, the Public >> key file looks like [---END--- line incomplete] > <snip code> >> I am not able to figure out what is problem. >> Any suggestions/thoughts?? >> > There's no fclose() in the code you posted. Without that or > at least fflush(), depending on what happens later in the > same process the file MIGHT not get written properly. > > Also, ExtractSerialNumber is storing to gszSerialNumber, > presumably a global buffer, without checking for overflow. > Any buffer overflow in C can be Very Bad News. "serial" > values in X.509 certs nowadays are usually randomized > and 10 or 20 or more bytes (though not by openssl 'ca'). > > And, if fopen() fails it is usually more helpful to show > strerror(errno), or call perror() which does that for you, > rather than just saying "some problem". Similarly, if any > OpenSSL routine (with a few exceptions) returns an error > indication (like NULL from PEM_read_* or <0 from SSL_connect) > it is almost always helpful to show OpenSSL's error queue. > The easy and standard way is to call ERR_print_errors[_fp] > usually on stderr, having done SSL_load_error_strings > (or similar) at initialization. If you want to format > differently see man ERR_get_error . Note > http://www.openssl.org/support/faq.html#PROG6 > http://www.openssl.org/support/faq.html#PROG7 > > ______________________________________________________________________ > OpenSSL Project http://www.openssl.org > User Support Mailing List openssl-users@openssl.org > Automated List Manager majord...@openssl.org > > -- View this message in context: http://old.nabble.com/Extract-of-Public-key-and-Serial-number-from-Certificate-tp33354749p33368555.html Sent from the OpenSSL - User mailing list archive at Nabble.com. ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager majord...@openssl.org
