Mine

    128 ssize_t ssl_readn(SSL *ssl, char *vptr, size_t n) {
    129     ssize_t nread = 0;
    130 
    131     while(1) {
    132         if ((nread = SSL_read(ssl, vptr, n)) < 0) {
    133             switch (SSL_get_error(ssl, nread)) {
    134                 case SSL_ERROR_WANT_READ:
    135                     break;
    136                 default:
    137                     errno = ECONNRESET;
    138                     return -1;
    139             }
    140         } else
    141             break;
    142     }
    143     fprintf(stderr, "Nread is %i\n", nread);
    144 
    145 
    146     vptr[nread] = '\0';
    147     return nread;
    148 }


==2713== Use of uninitialised value of size 4
==2713==    at 0x40A25FF: vfprintf (in /lib/libc-2.3.2.so)
==2713==    by 0x40A504D: buffered_vfprintf (in /lib/libc-2.3.2.so)
==2713==    by 0x40A4A9A: vfprintf (in /lib/libc-2.3.2.so)
==2713==    by 0x40AAF6E: fprintf (in /lib/libc-2.3.2.so)
==2713==    by 0x804E52E: ssl_readn (ssl.c:143)
==2713==    by 0x804F91C: main (main.c:414)