Big apps cleanup (option-parsing, etc)

This is merges the old "rsalz-monolith" branch over to master.  The biggest
change is that option parsing switch from cascasding 'else if strcmp("-foo")'
to a utility routine and somethin akin to getopt.  Also, an error in the
command line no longer prints the full summary; use -help (or --help :)
for that.  There have been many other changes and code-cleanup, see
bullet list below.

Special thanks to Matt for the long and detailed code review.

TEMPORARY:
        For now, comment out CRYPTO_mem_leaks() at end of main

Tickets closed:
        RT3515: Use 3DES in pkcs12 if built with no-rc2
        RT1766: s_client -reconnect and -starttls broke
        RT2932: Catch write errors
        RT2604: port should be 'unsigned short'
        RT2983: total_bytes undeclared #ifdef RENEG
        RT1523: Add -nocert to fix output in x509 app
        RT3508: Remove unused variable introduced by b09eb24
        RT3511: doc fix; req default serial is random
        RT1325,2973: Add more extensions to c_rehash
        RT2119,3407: Updated to dgst.pod
        RT2379: Additional typo fix
        RT2693: Extra include of string.h
        RT2880: HFS is case-insensitive filenames
        RT3246: req command prints version number wrong

Other changes; incompatibilities marked with *:
        Add SCSV support
        Add -misalign to speed command
        Make dhparam, dsaparam, ecparam, x509 output C in proper style
        Make some internal ocsp.c functions void
        Only display cert usages with -help in verify
        Use global bio_err, remove "BIO*err" parameter from functions
        For filenames, - always means stdin (or stdout as appropriate)
        Add aliases for -des/aes "wrap" ciphers.
        *Remove support for IISSGC (server gated crypto)
        *The undocumented OCSP -header flag is now "-header name=value"
        *Documented the OCSP -header flag

Reviewed-by: Matt Caswell <matt@openssl.org>

1 files changed, 567 insertions, 644 deletions

diff --git a/apps/s_server.c b/apps/s_server.c
index 8e350c89d8..2aaa2cb7da 100644
--- a/apps/s_server.c
+++ b/apps/s_server.c
@@ -1,4 +1,3 @@
-/* apps/s_server.c */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -199,7 +198,6 @@ static int sv_body(char *hostname, int s, int stype, unsigned char *context);
 static int www_body(char *hostname, int s, int stype, unsigned char *context);
 static int rev_body(char *hostname, int s, int stype, unsigned char *context);
 static void close_accept_socket(void);
-static void sv_usage(void);
 static int init_ssl_connection(SSL *s);
 static void print_stats(BIO *bp, SSL_CTX *ctx);
 static int generate_session_id(const SSL *ssl, unsigned char *id,
@@ -210,9 +208,7 @@ static void free_sessions(void);
 static DH *load_dh_param(const char *dhfile);
 #endif
 
-#ifdef MONOLITH
 static void s_server_init(void);
-#endif
 
 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 
@@ -225,8 +221,6 @@ static int accept_socket = -1;
 #ifndef OPENSSL_NO_TLSEXT
 # define TEST_CERT2      "server2.pem"
 #endif
-#undef PROG
-#define PROG            s_server_main
 
 extern int verify_depth, verify_return_error, verify_quiet;
 
@@ -394,10 +388,10 @@ static int ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
 
 #endif
 
-#ifdef MONOLITH
 static void s_server_init(void)
 {
     accept_socket = -1;
+    verify_depth = 0;
     s_server_verify = SSL_VERIFY_NONE;
     s_dcert_file = NULL;
     s_dkey_file = NULL;
@@ -405,208 +399,23 @@ static void s_server_init(void)
     s_cert_file = TEST_CERT;
     s_key_file = NULL;
     s_chain_file = NULL;
-# ifndef OPENSSL_NO_TLSEXT
+#ifndef OPENSSL_NO_TLSEXT
     s_cert_file2 = TEST_CERT2;
     s_key_file2 = NULL;
     ctx2 = NULL;
-# endif
-# ifdef FIONBIO
+#endif
     s_nbio = 0;
-# endif
     s_nbio_test = 0;
     ctx = NULL;
     www = 0;
-
     bio_s_out = NULL;
     s_debug = 0;
     s_msg = 0;
     s_quiet = 0;
     s_brief = 0;
-# ifndef OPENSSL_NO_ENGINE
-    engine_id = NULL;
-# endif
-}
-#endif
-
-static void sv_usage(void)
-{
-    BIO_printf(bio_err, "usage: s_server [args ...]\n");
-    BIO_printf(bio_err, "\n");
-    BIO_printf(bio_err,
-               " -accept port  - TCP/IP port to accept on (default is %d)\n",
-               PORT);
-    BIO_printf(bio_err, " -unix path    - unix domain socket to accept on\n");
-    BIO_printf(bio_err,
-               " -unlink       - for -unix, unlink existing socket first\n");
-    BIO_printf(bio_err, " -context arg  - set session ID context\n");
-    BIO_printf(bio_err,
-               " -verify arg   - turn on peer certificate verification\n");
-    BIO_printf(bio_err,
-               " -Verify arg   - turn on peer certificate verification, must have a cert.\n");
-    BIO_printf(bio_err,
-               " -verify_return_error - return verification errors\n");
-    BIO_printf(bio_err, " -cert arg     - certificate file to use\n");
-    BIO_printf(bio_err, "                 (default is %s)\n", TEST_CERT);
-    BIO_printf(bio_err,
-               " -naccept arg  - terminate after 'arg' connections\n");
-#ifndef OPENSSL_NO_TLSEXT
-    BIO_printf(bio_err,
-               " -serverinfo arg - PEM serverinfo file for certificate\n");
-#endif
-    BIO_printf(bio_err,
-               " -no_resumption_on_reneg - set SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION flag\n");
-    BIO_printf(bio_err,
-               " -crl_check    - check the peer certificate has not been revoked by its CA.\n"
-               "                 The CRL(s) are appended to the certificate file\n");
-    BIO_printf(bio_err,
-               " -crl_check_all - check the peer certificate has not been revoked by its CA\n"
-               "                 or any other CRL in the CA chain. CRL(s) are appened to the\n"
-               "                 the certificate file.\n");
-    BIO_printf(bio_err,
-               " -certform arg - certificate format (PEM or DER) PEM default\n");
-    BIO_printf(bio_err,
-               " -key arg      - Private Key file to use, in cert file if\n");
-    BIO_printf(bio_err, "                 not specified (default is %s)\n",
-               TEST_CERT);
-    BIO_printf(bio_err,
-               " -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
-    BIO_printf(bio_err,
-               " -pass arg     - private key file pass phrase source\n");
-    BIO_printf(bio_err,
-               " -dcert arg    - second certificate file to use (usually for DSA)\n");
-    BIO_printf(bio_err,
-               " -dcertform x  - second certificate format (PEM or DER) PEM default\n");
-    BIO_printf(bio_err,
-               " -dkey arg     - second private key file to use (usually for DSA)\n");
-    BIO_printf(bio_err,
-               " -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
-    BIO_printf(bio_err,
-               " -dpass arg    - second private key file pass phrase source\n");
-    BIO_printf(bio_err,
-               " -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
-    BIO_printf(bio_err,
-               "                 or a default set of parameters is used\n");
-#ifndef OPENSSL_NO_EC
-    BIO_printf(bio_err,
-               " -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n"
-               "                 Use \"openssl ecparam -list_curves\" for all names\n"
-               "                 (default is nistp256).\n");
-#endif
-#ifdef FIONBIO
-    BIO_printf(bio_err, " -nbio         - Run with non-blocking IO\n");
-#endif
-    BIO_printf(bio_err,
-               " -nbio_test    - test with the non-blocking test bio\n");
-    BIO_printf(bio_err,
-               " -crlf         - convert LF from terminal into CRLF\n");
-    BIO_printf(bio_err, " -debug        - Print more output\n");
-    BIO_printf(bio_err, " -msg          - Show protocol messages\n");
-    BIO_printf(bio_err, " -state        - Print the SSL states\n");
-    BIO_printf(bio_err, " -CApath arg   - PEM format directory of CA's\n");
-    BIO_printf(bio_err, " -CAfile arg   - PEM format file of CA's\n");
-    BIO_printf(bio_err,
-               " -trusted_first - Use locally trusted CA's first when building trust chain\n");
-    BIO_printf(bio_err,
-               " -no_alt_chains - only ever use the first certificate chain found\n");
-    BIO_printf(bio_err,
-               " -nocert       - Don't use any certificates (Anon-DH)\n");
-    BIO_printf(bio_err,
-               " -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
-    BIO_printf(bio_err, " -serverpref   - Use server's cipher preferences\n");
-    BIO_printf(bio_err, " -quiet        - No server output\n");
-    BIO_printf(bio_err, " -no_tmp_rsa   - Do not generate a tmp RSA key\n");
-#ifndef OPENSSL_NO_PSK
-    BIO_printf(bio_err, " -psk_hint arg - PSK identity hint to use\n");
-    BIO_printf(bio_err, " -psk arg      - PSK in hex (without 0x)\n");
-# ifndef OPENSSL_NO_JPAKE
-    BIO_printf(bio_err, " -jpake arg    - JPAKE secret to use\n");
-# endif
-#endif
-#ifndef OPENSSL_NO_SRP
-    BIO_printf(bio_err, " -srpvfile file      - The verifier file for SRP\n");
-    BIO_printf(bio_err,
-               " -srpuserseed string - A seed string for a default user salt.\n");
-#endif
-#ifndef OPENSSL_NO_SSL3_METHOD
-    BIO_printf(bio_err, " -ssl3         - Just talk SSLv3\n");
-#endif
-    BIO_printf(bio_err, " -tls1_2       - Just talk TLSv1.2\n");
-    BIO_printf(bio_err, " -tls1_1       - Just talk TLSv1.1\n");
-    BIO_printf(bio_err, " -tls1         - Just talk TLSv1\n");
-    BIO_printf(bio_err, " -dtls1        - Just talk DTLSv1\n");
-    BIO_printf(bio_err, " -dtls1_2      - Just talk DTLSv1.2\n");
-    BIO_printf(bio_err, " -timeout      - Enable timeouts\n");
-    BIO_printf(bio_err, " -mtu          - Set link layer MTU\n");
-    BIO_printf(bio_err, " -chain        - Read a certificate chain\n");
-    BIO_printf(bio_err, " -no_ssl3      - Just disable SSLv3\n");
-    BIO_printf(bio_err, " -no_tls1      - Just disable TLSv1\n");
-    BIO_printf(bio_err, " -no_tls1_1    - Just disable TLSv1.1\n");
-    BIO_printf(bio_err, " -no_tls1_2    - Just disable TLSv1.2\n");
-#ifndef OPENSSL_NO_DH
-    BIO_printf(bio_err, " -no_dhe       - Disable ephemeral DH\n");
-#endif
-#ifndef OPENSSL_NO_EC
-    BIO_printf(bio_err, " -no_ecdhe     - Disable ephemeral ECDH\n");
-#endif
-    BIO_printf(bio_err,
-               "-no_resume_ephemeral - Disable caching and tickets if ephemeral (EC)DH is used\n");
-    BIO_printf(bio_err, " -bugs         - Turn on SSL bug compatibility\n");
-    BIO_printf(bio_err,
-               " -www          - Respond to a 'GET /' with a status page\n");
-    BIO_printf(bio_err,
-               " -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
-    BIO_printf(bio_err,
-               " -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
-    BIO_printf(bio_err,
-               "                 with the assumption it contains a complete HTTP response.\n");
 #ifndef OPENSSL_NO_ENGINE
-    BIO_printf(bio_err,
-               " -engine id    - Initialise and use the specified engine\n");
-#endif
-    BIO_printf(bio_err,
-               " -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
-    BIO_printf(bio_err, " -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR,
-               LIST_SEPARATOR_CHAR);
-#ifndef OPENSSL_NO_TLSEXT
-    BIO_printf(bio_err,
-               " -servername host - servername for HostName TLS extension\n");
-    BIO_printf(bio_err,
-               " -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
-    BIO_printf(bio_err,
-               " -cert2 arg    - certificate file to use for servername\n");
-    BIO_printf(bio_err, "                 (default is %s)\n", TEST_CERT2);
-    BIO_printf(bio_err,
-               " -key2 arg     - Private Key file to use for servername, in cert file if\n");
-    BIO_printf(bio_err, "                 not specified (default is %s)\n",
-               TEST_CERT2);
-    BIO_printf(bio_err,
-               " -tlsextdebug  - hex dump of all TLS extensions received\n");
-    BIO_printf(bio_err,
-               " -no_ticket    - disable use of RFC4507bis session tickets\n");
-    BIO_printf(bio_err,
-               " -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
-# ifndef OPENSSL_NO_NEXTPROTONEG
-    BIO_printf(bio_err,
-               " -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
-# endif
-# ifndef OPENSSL_NO_SRTP
-    BIO_printf(bio_err,
-               " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
-# endif
-    BIO_printf(bio_err,
-               " -alpn arg  - set the advertised protocols for the ALPN extension (comma-separated list)\n");
+    engine_id = NULL;
 #endif
-    BIO_printf(bio_err,
-               " -keymatexport label   - Export keying material using label\n");
-    BIO_printf(bio_err,
-               " -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
-    BIO_printf(bio_err,
-               " -status           - respond to certificate status requests\n");
-    BIO_printf(bio_err,
-               " -status_verbose   - enable status request verbose printout\n");
-    BIO_printf(bio_err,
-               " -status_timeout n - status request responder timeout\n");
-    BIO_printf(bio_err, " -status_url URL   - status request fallback URL\n");
 }
 
 static int local_argc = 0;
@@ -705,8 +514,7 @@ static int ebcdic_write(BIO *b, const char *in, int inl)
         num = num + num;        /* double the size */
         if (num < inl)
             num = inl;
-        wbuf =
-            (EBCDIC_OUTBUFF *) OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
+        wbuf = (EBCDIC_OUTBUFF *) OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
         if (!wbuf)
             return 0;
         OPENSSL_free(b->ptr);
@@ -807,11 +615,10 @@ typedef struct tlsextstatusctx_st {
     char *host, *path, *port;
     int use_ssl;
     int timeout;
-    BIO *err;
     int verbose;
 } tlsextstatusctx;
 
-static tlsextstatusctx tlscstatp = { NULL, NULL, NULL, 0, -1, NULL, 0 };
+static tlsextstatusctx tlscstatp = { NULL, NULL, NULL, 0, -1, 0 };
 
 /*
  * Certificate Status callback. This is called when a client includes a
@@ -825,7 +632,6 @@ static tlsextstatusctx tlscstatp = { NULL, NULL, NULL, 0, -1, NULL, 0 };
 static int cert_status_cb(SSL *s, void *arg)
 {
     tlsextstatusctx *srctx = arg;
-    BIO *err = srctx->err;
     char *host, *port, *path;
     int use_ssl;
     unsigned char *rspder = NULL;
@@ -840,23 +646,24 @@ static int cert_status_cb(SSL *s, void *arg)
     STACK_OF(X509_EXTENSION) *exts;
     int ret = SSL_TLSEXT_ERR_NOACK;
     int i;
+
     if (srctx->verbose)
-        BIO_puts(err, "cert_status: callback called\n");
+        BIO_puts(bio_err, "cert_status: callback called\n");
     /* Build up OCSP query from server certificate */
     x = SSL_get_certificate(s);
     aia = X509_get1_ocsp(x);
     if (aia) {
         if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
                             &host, &port, &path, &use_ssl)) {
-            BIO_puts(err, "cert_status: can't parse AIA URL\n");
+            BIO_puts(bio_err, "cert_status: can't parse AIA URL\n");
             goto err;
         }
         if (srctx->verbose)
-            BIO_printf(err, "cert_status: AIA URL: %s\n",
+            BIO_printf(bio_err, "cert_status: AIA URL: %s\n",
                        sk_OPENSSL_STRING_value(aia, 0));
     } else {
         if (!srctx->host) {
-            BIO_puts(srctx->err,
+            BIO_puts(bio_err,
                      "cert_status: no AIA and no default responder URL\n");
             goto done;
         }
@@ -872,7 +679,7 @@ static int cert_status_cb(SSL *s, void *arg)
         goto err;
     if (X509_STORE_get_by_subject(&inctx, X509_LU_X509,
                                   X509_get_issuer_name(x), &obj) <= 0) {
-        BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
+        BIO_puts(bio_err, "cert_status: Can't retrieve issuer certificate.\n");
         X509_STORE_CTX_cleanup(&inctx);
         goto done;
     }
@@ -894,10 +701,10 @@ static int cert_status_cb(SSL *s, void *arg)
         if (!OCSP_REQUEST_add_ext(req, ext, -1))
             goto err;
     }
-    resp = process_responder(err, req, host, path, port, use_ssl, NULL,
+    resp = process_responder(req, host, path, port, use_ssl, NULL,
                              srctx->timeout);
     if (!resp) {
-        BIO_puts(err, "cert_status: error querying responder\n");
+        BIO_puts(bio_err, "cert_status: error querying responder\n");
         goto done;
     }
     rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
@@ -905,13 +712,13 @@ static int cert_status_cb(SSL *s, void *arg)
         goto err;
     SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
     if (srctx->verbose) {
-        BIO_puts(err, "cert_status: ocsp response sent:\n");
-        OCSP_RESPONSE_print(err, resp, 2);
+        BIO_puts(bio_err, "cert_status: ocsp response sent:\n");
+        OCSP_RESPONSE_print(bio_err, resp, 2);
     }
     ret = SSL_TLSEXT_ERR_OK;
  done:
     if (ret != SSL_TLSEXT_ERR_OK)
-        ERR_print_errors(err);
+        ERR_print_errors(bio_err);
     if (aia) {
         OPENSSL_free(host);
         OPENSSL_free(path);
@@ -995,14 +802,7 @@ static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
     return is_forward_secure;
 }
 
-int MAIN(int, char **);
-
-#ifndef OPENSSL_NO_JPAKE
 static char *jpake_secret = NULL;
-# define no_jpake !jpake_secret
-#else
-# define no_jpake 1
-#endif
 #ifndef OPENSSL_NO_SRP
 static srpsrvparm srp_callback_parm;
 #endif
@@ -1010,41 +810,214 @@ static srpsrvparm srp_callback_parm;
 static char *srtp_profiles = NULL;
 #endif
 
-int MAIN(int argc, char *argv[])
+typedef enum OPTION_choice {
+    OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
+    OPT_ENGINE, OPT_PORT, OPT_UNIX, OPT_UNLINK, OPT_NACCEPT,
+    OPT_VERIFY, OPT_UPPER_V_VERIFY, OPT_CONTEXT, OPT_CERT, OPT_CRL,
+    OPT_CRL_DOWNLOAD, OPT_SERVERINFO, OPT_CERTFORM, OPT_KEY, OPT_KEYFORM,
+    OPT_PASS, OPT_CERT_CHAIN, OPT_DHPARAM, OPT_DCERTFORM, OPT_DCERT,
+    OPT_DKEYFORM, OPT_DPASS, OPT_DKEY, OPT_DCERT_CHAIN, OPT_NOCERT,
+    OPT_CAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH, OPT_NO_CACHE,
+    OPT_EXT_CACHE, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
+    OPT_BUILD_CHAIN, OPT_CAFILE, OPT_CHAINCAFILE, OPT_VERIFYCAFILE,
+    OPT_NBIO, OPT_NBIO_TEST, OPT_IGN_EOF, OPT_NO_IGN_EOF, OPT_DEBUG,
+    OPT_TLSEXTDEBUG, OPT_STATUS, OPT_STATUS_VERBOSE, OPT_STATUS_TIMEOUT,
+    OPT_STATUS_URL, OPT_MSG, OPT_MSGFILE, OPT_TRACE, OPT_SECURITY_DEBUG,
+    OPT_SECURITY_DEBUG_VERBOSE, OPT_STATE, OPT_CRLF, OPT_QUIET,
+    OPT_BRIEF, OPT_NO_TMP_RSA, OPT_NO_DHE, OPT_NO_ECDHE,
+    OPT_NO_RESUME_EPHEMERAL, OPT_PSK_HINT, OPT_PSK, OPT_SRPVFILE,
+    OPT_SRPUSERSEED, OPT_REV, OPT_WWW, OPT_UPPER_WWW, OPT_HTTP,
+#ifndef OPENSSL_NO_SSL3
+    OPT_SSL3,
+#endif
+    OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
+    OPT_DTLS1_2, OPT_TIMEOUT, OPT_MTU, OPT_CHAIN,
+    OPT_ID_PREFIX, OPT_RAND, OPT_SERVERNAME, OPT_SERVERNAME_FATAL,
+    OPT_CERT2, OPT_KEY2, OPT_NEXTPROTONEG, OPT_ALPN, OPT_JPAKE,
+    OPT_SRTP_PROFILES, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN,
+    OPT_S_ENUM,
+    OPT_V_ENUM,
+    OPT_X_ENUM
+} OPTION_CHOICE;
+
+OPTIONS s_server_options[] = {
+    {"help", OPT_HELP, '-', "Display this summary"},
+
+    {"port", OPT_PORT, 'p'},
+    {"accept", OPT_PORT, 'p',
+     "TCP/IP port to accept on (default is " PORT_STR ")"},
+    {"unix", OPT_UNIX, 's', "Unix domain socket to accept on"},
+    {"unlink", OPT_UNLINK, '-', "For -unix, unlink existing socket first"},
+    {"context", OPT_CONTEXT, 's', "Set session ID context"},
+    {"verify", OPT_VERIFY, 'n', "Turn on peer certificate verification"},
+    {"Verify", OPT_UPPER_V_VERIFY, 'n',
+     "Turn on peer certificate verification, must have a cert"},
+    {"cert", OPT_CERT, '<', "Certificate file to use; default is " TEST_CERT},
+    {"naccept", OPT_NACCEPT, 'p', "Terminate after pnum connections"},
+#ifndef OPENSSL_NO_TLSEXT
+    {"serverinfo", OPT_SERVERINFO, 's',
+     "PEM serverinfo file for certificate"},
+#endif
+    {"certform", OPT_CERTFORM, 'F',
+     "Certificate format (PEM or DER) PEM default"},
+    {"key", OPT_KEY, '<',
+     "Private Key if not in -cert; default is " TEST_CERT},
+    {"keyform", OPT_KEYFORM, 'f',
+     "Key format (PEM, DER or ENGINE) PEM default"},
+    {"pass", OPT_PASS, 's', "Private key file pass phrase source"},
+    {"dcert", OPT_DCERT, '<',
+     "Second certificate file to use (usually for DSA)"},
+    {"dcertform", OPT_DCERTFORM, 'F',
+     "Second certificate format (PEM or DER) PEM default"},
+    {"dkey", OPT_DKEY, '<',
+     "Second private key file to use (usually for DSA)"},
+    {"dkeyform", OPT_DKEYFORM, 'F',
+     "Second key format (PEM, DER or ENGINE) PEM default"},
+    {"dpass", OPT_DPASS, 's', "Second private key file pass phrase source"},
+#ifdef FIONBIO
+    {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
+#endif
+    {"nbio_test", OPT_NBIO_TEST, '-', "Test with the non-blocking test bio"},
+    {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
+    {"debug", OPT_DEBUG, '-', "Print more output"},
+    {"msg", OPT_MSG, '-', "Show protocol messages"},
+    {"msgfile", OPT_MSGFILE, '>'},
+    {"state", OPT_STATE, '-', "Print the SSL states"},
+    {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
+    {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
+    {"nocert", OPT_NOCERT, '-', "Don't use any certificates (Anon-DH)"},
+    {"quiet", OPT_QUIET, '-', "No server output"},
+    {"no_tmp_rsa", OPT_NO_TMP_RSA, '-', "Do not generate a tmp RSA key"},
+#ifndef OPENSSL_NO_PSK
+    {"psk_hint", OPT_PSK_HINT, 's', "PSK identity hint to use"},
+    {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
+# ifndef OPENSSL_NO_JPAKE
+    {"jpake", OPT_JPAKE, 's', "JPAKE secret to use"},
+# endif
+#endif
+#ifndef OPENSSL_NO_SRP
+    {"srpvfile", OPT_SRPVFILE, '<', "The verifier file for SRP"},
+    {"srpuserseed", OPT_SRPUSERSEED, 's',
+     "A seed string for a default user salt"},
+#endif
+#ifndef OPENSSL_NO_SSL3
+    {"ssl3", OPT_SSL3, '-', "Just talk SSLv3"},
+#endif
+    {"tls1_2", OPT_TLS1_2, '-', "just talk TLSv1.2"},
+    {"tls1_1", OPT_TLS1_1, '-', "Just talk TLSv1.1"},
+    {"tls1", OPT_TLS1, '-', "Just talk TLSv1"},
+#ifndef OPENSSL_NO_DTLS1
+    {"dtls", OPT_DTLS, '-'},
+    {"dtls1", OPT_DTLS1, '-', "Just talk DTLSv1"},
+    {"dtls1_2", OPT_DTLS1_2, '-', "Just talk DTLSv1.2"},
+    {"timeout", OPT_TIMEOUT, '-', "Enable timeouts"},
+    {"mtu", OPT_MTU, 'p', "Set link layer MTU"},
+    {"chain", OPT_CHAIN, '-', "Read a certificate chain"},
+#endif
+#ifndef OPENSSL_NO_DH
+    {"no_dhe", OPT_NO_DHE, '-', "Disable ephemeral DH"},
+#endif
+#ifndef OPENSSL_NO_EC
+    {"no_ecdhe", OPT_NO_ECDHE, '-', "Disable ephemeral ECDH"},
+#endif
+    {"no_resume_ephemeral", OPT_NO_RESUME_EPHEMERAL, '-',
+     "Disable caching and tickets if ephemeral (EC)DH is used"},
+    {"www", OPT_WWW, '-', "Respond to a 'GET /' with a status page"},
+    {"WWW", OPT_UPPER_WWW, '-', "Respond to a 'GET with the file ./path"},
+    {"HTTP", OPT_HTTP, '-', "Like -WWW but ./path incluedes HTTP headers"},
+    {"id_prefix", OPT_ID_PREFIX, 's',
+     "Generate SSL/TLS session IDs prefixed by arg"},
+    {"rand", OPT_RAND, 's',
+     "Load the file(s) into the random number generator"},
+#ifndef OPENSSL_NO_TLSEXT
+    {"servername", OPT_SERVERNAME, 's',
+     "Servername for HostName TLS extension"},
+    {"servername_fatal", OPT_SERVERNAME_FATAL, '-',
+     "mismatch send fatal alert (default warning alert)"},
+    {"cert2", OPT_CERT2, '<',
+     "Certificate file to use for servername; default is" TEST_CERT2},
+    {"key2", OPT_KEY2, '<',
+     "-Private Key file to use for servername if not in -cert2"},
+    {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
+     "Hex dump of all TLS extensions received"},
+# ifndef OPENSSL_NO_NEXTPROTONEG
+    {"nextprotoneg", OPT_NEXTPROTONEG, 's',
+     "Set the advertised protocols for the NPN extension (comma-separated list)"},
+# endif
+    {"use_srtp", OPT_SRTP_PROFILES, '<',
+     "Offer SRTP key management with a colon-separated profile list"},
+    {"alpn", OPT_ALPN, 's',
+     "Set the advertised protocols for the ALPN extension (comma-separated list)"},
+#endif
+    {"keymatexport", OPT_KEYMATEXPORT, 's',
+     "Export keying material using label"},
+    {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
+     "Export len bytes of keying material (default 20)"},
+    {"CRL", OPT_CRL, '<'},
+    {"crl_download", OPT_CRL_DOWNLOAD, '-'},
+    {"cert_chain", OPT_CERT_CHAIN, '<'},
+    {"dcert_chain", OPT_DCERT_CHAIN, '<'},
+    {"chainCApath", OPT_CHAINCAPATH, '/'},
+    {"verifyCApath", OPT_VERIFYCAPATH, '/'},
+    {"no_cache", OPT_NO_CACHE, '-'},
+    {"ext_cache", OPT_EXT_CACHE, '-'},
+    {"CRLform", OPT_CRLFORM, 'F'},
+    {"verify_return_error", OPT_VERIFY_RET_ERROR, '-'},
+    {"verify_quiet", OPT_VERIFY_QUIET, '-'},
+    {"build_chain", OPT_BUILD_CHAIN, '-'},
+    {"chainCAfile", OPT_CHAINCAFILE, '<'},
+    {"verifyCAfile", OPT_VERIFYCAFILE, '<'},
+    {"ign_eof", OPT_IGN_EOF, '-'},
+    {"no_ign_eof", OPT_NO_IGN_EOF, '-'},
+    {"status", OPT_STATUS, '-'},
+    {"status_verbose", OPT_STATUS_VERBOSE, '-'},
+    {"status_timeout", OPT_STATUS_TIMEOUT, 'n'},
+    {"status_url", OPT_STATUS_URL, 's'},
+    {"trace", OPT_TRACE, '-'},
+    {"security_debug", OPT_SECURITY_DEBUG, '-'},
+    {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-'},
+    {"brief", OPT_BRIEF, '-'},
+    {"rev", OPT_REV, '-'},
+#ifndef OPENSSL_NO_ENGINE
+    {"engine", OPT_ENGINE, 's'},
+#endif
+    OPT_S_OPTIONS,
+    OPT_V_OPTIONS,
+    OPT_X_OPTIONS,
+    {NULL}
+};
+
+int s_server_main(int argc, char *argv[])
 {
+    ENGINE *e = NULL;
+    EVP_PKEY *s_key = NULL, *s_dkey = NULL;
+    SSL_CONF_CTX *cctx = NULL;
+    const SSL_METHOD *meth = SSLv23_server_method();
+    SSL_EXCERT *exc = NULL;
+    STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
+    STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
+    STACK_OF(X509_CRL) *crls = NULL;
+    X509 *s_cert = NULL, *s_dcert = NULL;
     X509_VERIFY_PARAM *vpm = NULL;
-    int badarg = 0;
-    short port = PORT;
+    char *CApath = NULL, *CAfile = NULL, *chCApath = NULL, *chCAfile = NULL;
+    char *dhfile = NULL, *dpassarg = NULL, *dpass = NULL, *inrand = NULL;
+    char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL;
+    char *crl_file = NULL, *prog, *p;
     const char *unix_path = NULL;
 #ifndef NO_SYS_UN_H
     int unlink_unix_path = 0;
 #endif
     int (*server_cb) (char *hostname, int s, int stype,
                       unsigned char *context);
-    char *CApath = NULL, *CAfile = NULL;
-    char *chCApath = NULL, *chCAfile = NULL;
-    char *vfyCApath = NULL, *vfyCAfile = NULL;
-    unsigned char *context = NULL;
-    char *dhfile = NULL;
-    int badop = 0;
-    int ret = 1;
-    int build_chain = 0;
-    int no_tmp_rsa = 0, no_dhe = 0, no_ecdhe = 0, nocert = 0;
-    int state = 0;
-    const SSL_METHOD *meth = NULL;
-    int socket_type = SOCK_STREAM;
-    ENGINE *e = NULL;
-    char *inrand = NULL;
+    int vpmtouched = 0, build_chain = 0, no_cache = 0, ext_cache = 0;
+    int no_tmp_rsa = 0, no_dhe = 0, no_ecdhe = 0, nocert = 0, ret = 1;
     int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
-    char *passarg = NULL, *pass = NULL;
-    char *dpassarg = NULL, *dpass = NULL;
     int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
-    X509 *s_cert = NULL, *s_dcert = NULL;
-    STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
-    EVP_PKEY *s_key = NULL, *s_dkey = NULL;
-    int no_cache = 0, ext_cache = 0;
-    int rev = 0, naccept = -1;
-    int sdebug = 0;
+    int rev = 0, naccept = -1, sdebug = 0, socket_type = SOCK_STREAM;
+    int state = 0, crl_format = FORMAT_PEM, crl_download = 0;
+    unsigned short port = PORT;
+    unsigned char *context = NULL;
+    OPTION_CHOICE o;
 #ifndef OPENSSL_NO_TLSEXT
     EVP_PKEY *s_key2 = NULL;
     X509 *s_cert2 = NULL;
@@ -1064,449 +1037,394 @@ int MAIN(int argc, char *argv[])
     char *srpuserseed = NULL;
     char *srp_verifier_file = NULL;
 #endif
-    SSL_EXCERT *exc = NULL;
-    SSL_CONF_CTX *cctx = NULL;
-    STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
-
-    char *crl_file = NULL;
-    int crl_format = FORMAT_PEM;
-    int crl_download = 0;
-    STACK_OF(X509_CRL) *crls = NULL;
-
-    meth = SSLv23_server_method();
 
     local_argc = argc;
     local_argv = argv;
 
-    apps_startup();
-#ifdef MONOLITH
     s_server_init();
-#endif
-
-    if (bio_err == NULL)
-        bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
-
-    if (!load_config(bio_err, NULL))
-        goto end;
-
     cctx = SSL_CONF_CTX_new();
-    if (!cctx)
+    vpm = X509_VERIFY_PARAM_new();
+    if (cctx == NULL || vpm == NULL)
         goto end;
-    SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SERVER);
-    SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE);
-
-    verify_depth = 0;
-#ifdef FIONBIO
-    s_nbio = 0;
-#endif
-    s_nbio_test = 0;
-
-    argc--;
-    argv++;
+    SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CMDLINE);
+
+    prog = opt_init(argc, argv, s_server_options);
+    while ((o = opt_next()) != OPT_EOF) {
+        switch (o) {
+        case OPT_EOF:
+        case OPT_ERR:
+ opthelp:
+            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
+            goto end;
+        case OPT_HELP:
+            opt_help(s_server_options);
+            ret = 0;
+            goto end;
 
-    while (argc >= 1) {
-        if ((strcmp(*argv, "-port") == 0) || (strcmp(*argv, "-accept") == 0)) {
-            if (--argc < 1)
-                goto bad;
-            if (!extract_port(*(++argv), &port))
-                goto bad;
-        } else if (strcmp(*argv, "-unix") == 0) {
+        case OPT_PORT:
+            if (!extract_port(opt_arg(), &port))
+                goto end;
+            break;
+        case OPT_UNIX:
 #ifdef NO_SYS_UN_H
             BIO_printf(bio_err, "unix domain sockets unsupported\n");
-            goto bad;
+            goto end;
 #else
-            if (--argc < 1)
-                goto bad;
-            unix_path = *(++argv);
+            unix_path = opt_arg();
 #endif
-        } else if (strcmp(*argv, "-unlink") == 0) {
+            break;
+        case OPT_UNLINK:
 #ifdef NO_SYS_UN_H
             BIO_printf(bio_err, "unix domain sockets unsupported\n");
-            goto bad;
+            goto end;
 #else
             unlink_unix_path = 1;
 #endif
-        } else if (strcmp(*argv, "-naccept") == 0) {
-            if (--argc < 1)
-                goto bad;
-            naccept = atol(*(++argv));
-            if (naccept <= 0) {
-                BIO_printf(bio_err, "bad accept value %s\n", *argv);
-                goto bad;
-            }
-        } else if (strcmp(*argv, "-verify") == 0) {
+            break;
+        case OPT_NACCEPT:
+            naccept = atol(opt_arg());
+            break;
+        case OPT_VERIFY:
             s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE;
-            if (--argc < 1)
-                goto bad;
-            verify_depth = atoi(*(++argv));
+            verify_depth = atoi(opt_arg());
             if (!s_quiet)
                 BIO_printf(bio_err, "verify depth is %d\n", verify_depth);
-        } else if (strcmp(*argv, "-Verify") == 0) {
+            break;
+        case OPT_UPPER_V_VERIFY:
             s_server_verify =
                 SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT |
                 SSL_VERIFY_CLIENT_ONCE;
-            if (--argc < 1)
-                goto bad;
-            verify_depth = atoi(*(++argv));
+            verify_depth = atoi(opt_arg());
             if (!s_quiet)
                 BIO_printf(bio_err,
                            "verify depth is %d, must return a certificate\n",
                            verify_depth);
-        } else if (strcmp(*argv, "-context") == 0) {
-            if (--argc < 1)
-                goto bad;
-            context = (unsigned char *)*(++argv);
-        } else if (strcmp(*argv, "-cert") == 0) {
-            if (--argc < 1)
-                goto bad;
-            s_cert_file = *(++argv);
-        } else if (strcmp(*argv, "-CRL") == 0) {
-            if (--argc < 1)
-                goto bad;
-            crl_file = *(++argv);
-        } else if (strcmp(*argv, "-crl_download") == 0)
+            break;
+        case OPT_CONTEXT:
+            context = (unsigned char *)opt_arg();
+            break;
+        case OPT_CERT:
+            s_cert_file = opt_arg();
+            break;
+        case OPT_CRL:
+            crl_file = opt_arg();
+            break;
+        case OPT_CRL_DOWNLOAD:
             crl_download = 1;
+            break;
 #ifndef OPENSSL_NO_TLSEXT
-        else if (strcmp(*argv, "-serverinfo") == 0) {
-            if (--argc < 1)
-                goto bad;
-            s_serverinfo_file = *(++argv);
-        }
+        case OPT_SERVERINFO:
+            s_serverinfo_file = opt_arg();
+            break;
 #endif
-        else if (strcmp(*argv, "-certform") == 0) {
-            if (--argc < 1)
-                goto bad;
-            s_cert_format = str2fmt(*(++argv));
-        } else if (strcmp(*argv, "-key") == 0) {
-            if (--argc < 1)
-                goto bad;
-            s_key_file = *(++argv);
-        } else if (strcmp(*argv, "-keyform") == 0) {
-            if (--argc < 1)
-                goto bad;
-            s_key_format = str2fmt(*(++argv));
-        } else if (strcmp(*argv, "-pass") == 0) {
-            if (--argc < 1)
-                goto bad;
-            passarg = *(++argv);
-        } else if (strcmp(*argv, "-cert_chain") == 0) {
-            if (--argc < 1)
-                goto bad;
-            s_chain_file = *(++argv);
-        } else if (strcmp(*argv, "-dhparam") == 0) {
-            if (--argc < 1)
-                goto bad;
-            dhfile = *(++argv);
-        } else if (strcmp(*argv, "-dcertform") == 0) {
-            if (--argc < 1)
-                goto bad;
-            s_dcert_format = str2fmt(*(++argv));
-        } else if (strcmp(*argv, "-dcert") == 0) {
-            if (--argc < 1)
-                goto bad;
-            s_dcert_file = *(++argv);
-        } else if (strcmp(*argv, "-dkeyform") == 0) {
-            if (--argc < 1)
-                goto bad;
-            s_dkey_format = str2fmt(*(++argv));
-        } else if (strcmp(*argv, "-dpass") == 0) {
-            if (--argc < 1)
-                goto bad;
-            dpassarg = *(++argv);
-        } else if (strcmp(*argv, "-dkey") == 0) {
-            if (--argc < 1)
-                goto bad;
-            s_dkey_file = *(++argv);
-        } else if (strcmp(*argv, "-dcert_chain") == 0) {
-            if (--argc < 1)
-                goto bad;
-            s_dchain_file = *(++argv);
-        } else if (strcmp(*argv, "-nocert") == 0) {
+        case OPT_CERTFORM:
+            if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_cert_format))
+                goto opthelp;
+            break;
+        case OPT_KEY:
+            s_key_file = opt_arg();
+            break;
+        case OPT_KEYFORM:
+            if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_key_format))
+                goto opthelp;
+            break;
+        case OPT_PASS:
+            passarg = opt_arg();
+            break;
+        case OPT_CERT_CHAIN:
+            s_chain_file = opt_arg();
+            break;
+        case OPT_DHPARAM:
+            dhfile = opt_arg();
+            break;
+        case OPT_DCERTFORM:
+            if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_dcert_format))
+                goto opthelp;
+            break;
+        case OPT_DCERT:
+            s_dcert_file = opt_arg();
+            break;
+        case OPT_DKEYFORM:
+            if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_dkey_format))
+                goto opthelp;
+            break;
+        case OPT_DPASS:
+            dpassarg = opt_arg();
+            break;
+        case OPT_DKEY:
+            s_dkey_file = opt_arg();
+            break;
+        case OPT_DCERT_CHAIN:
+            s_dchain_file = opt_arg();
+            break;
+        case OPT_NOCERT:
             nocert = 1;
-        } else if (strcmp(*argv, "-CApath") == 0) {
-            if (--argc < 1)
-                goto bad;
-            CApath = *(++argv);
-        } else if (strcmp(*argv, "-chainCApath") == 0) {
-            if (--argc < 1)
-                goto bad;
-            chCApath = *(++argv);
-        } else if (strcmp(*argv, "-verifyCApath") == 0) {
-            if (--argc < 1)
-                goto bad;
-            vfyCApath = *(++argv);
-        } else if (strcmp(*argv, "-no_cache") == 0)
+            break;
+        case OPT_CAPATH:
+            CApath = opt_arg();
+            break;
+        case OPT_CHAINCAPATH:
+            chCApath = opt_arg();
+            break;
+        case OPT_VERIFYCAPATH:
+            vfyCApath = opt_arg();
+            break;
+        case OPT_NO_CACHE:
             no_cache = 1;
-        else if (strcmp(*argv, "-ext_cache") == 0)
+            break;
+        case OPT_EXT_C