[openssl-dev] [openssl.org #3690] s_client.c and missing psk_key symbol

[noloader@gmail.com via RT]

Modifying and compiling s_client.c manually results in a compile failure:

  export OPENSSLDIR=/usr/local/ssl/darwin
  gcc -DMONOLITH -I$OPENSSLDIR/include -I../ -c apps.c
  gcc -DMONOLITH -I$OPENSSLDIR/include -I../ -c app_rand.c
  gcc -DMONOLITH -I$OPENSSLDIR/include -I../ -c s_cb.c
  gcc -DMONOLITH -I$OPENSSLDIR/include -I../ -c s_socket.c
  gcc -I$OPENSSLDIR/include -I../ app_rand.o apps.o s_cb.o s_socket.o \
    $OPENSSLDIR/lib/libssl.a $OPENSSLDIR/lib/libcrypto.a s_client.c -o
my_s_client.exe

  Undefined symbols for architecture x86_64:
    "_psk_key", referenced from:
      _main in s_client-7f5596.o
      _psk_client_cb in s_client-7f5596.o
  ld: symbol(s) not found for architecture x86_64
  clang: error: linker command failed with exit code 1 (use -v to see
invocation)

It appears psk_key was inadvertently commented out (from around line 225):

#ifndef OPENSSL_NO_PSK
/* Default PSK identity and key */
static char *psk_identity="Client_identity";
/*char *psk_key=NULL;  by default PSK is not used */
...