Index: configure.ac
===================================================================
RCS file: /cvsroot/curl/curl/configure.ac,v
retrieving revision 1.210
diff -u -r1.210 configure.ac
--- configure.ac	3 Nov 2006 03:05:15 -0000	1.210
+++ configure.ac	23 Jan 2007 15:07:09 -0000
@@ -1188,6 +1188,7 @@
        [
        AC_DEFINE(USE_GNUTLS, 1, [if GnuTLS is enabled])
        AC_SUBST(USE_GNUTLS, [1])
+       GNUTLS_ENABLED = 1
        USE_GNUTLS="yes"
        curl_ssl_msg="enabled (GnuTLS)"
        ],
@@ -1213,13 +1214,84 @@
 
   fi dnl GNUTLS not disabled
 
-  if test X"$USE_GNUTLS" != "Xyes"; then
-    AC_MSG_WARN([SSL disabled, you will not be able to use HTTPS, FTPS, NTLM and more.])
-    AC_MSG_WARN([Use --with-ssl or --with-gnutls to address this.])
-  fi
-
 fi dnl OPENSSL != 1
 
+dnl ----------------------------------------------------
+dnl NSS. Only check if GnuTLS and OpenSSL are not enabled
+dnl ----------------------------------------------------
+
+dnl Default to compiler & linker defaults for NSS files & libraries.
+OPT_NSS=no
+
+AC_ARG_WITH(nss,dnl
+AC_HELP_STRING([--with-nss=PATH],[where to look for NSS, PATH points to the installation root (default: /usr/local/)])
+AC_HELP_STRING([--without-nss], [disable NSS detection]),
+  OPT_NSS=$withval)
+
+if test "$OPENSSL_ENABLED" != "1" -a "$GNUTLS_ENABLED" != "1"; then
+
+  if test X"$OPT_NSS" != Xno; then
+    if test "x$OPT_NSS" = "xyes"; then
+     check=`pkg-config --version 2>/dev/null`
+     if test -n "$check"; then
+       addlib=`pkg-config --libs nss`
+       addcflags=`pkg-config --cflags nss`
+       version=`pkg-config --modversion nss`
+       nssprefix=`pkg-config --variable=prefix nss`
+     fi
+    else
+      # Without pkg-config, we'll kludge in some defaults
+      addlib="-lssl3 -lsmime3 -lnss3 -lplds4 -lplc4 -lnspr4 -lpthread -ldl"
+      addcflags="-I$OPT_NSS/include" 
+      version="unknown"
+      gtlsprefix=$OPT_GNUTLS
+    fi
+    if test -n "$addlib"; then
+
+      CLEANLIBS="$LIBS"
+      CLEANCPPFLAGS="$CPPFLAGS"
+  
+      LIBS="$LIBS $addlib"
+      if test "$addcflags" != "-I/usr/include"; then
+         CPPFLAGS="$CPPFLAGS $addcflags"
+      fi
+  
+      AC_CHECK_LIB(nss3, NSS_Initialize,
+       [
+       AC_DEFINE(USE_NSS, 1, [if NSS is enabled])
+       AC_SUBST(USE_NSS, [1])
+       USE_NSS="yes"
+       curl_ssl_msg="enabled (NSS)"
+       ],
+       [
+         LIBS="$CLEANLIBS"
+         CPPFLAGS="$CLEANCPPFLAGS"
+       ])
+  
+      if test "x$USE_NSS" = "xyes"; then
+        AC_MSG_NOTICE([detected NSS version $version])
+
+        dnl when shared libs were found in a path that the run-time
+        dnl linker doesn't search through, we need to add it to
+        dnl LD_LIBRARY_PATH to prevent further configure tests to fail
+        dnl due to this
+
+        LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$nssprefix/lib$libsuff"
+        export LD_LIBRARY_PATH
+        AC_MSG_NOTICE([Added $nssprefix/lib$libsuff to LD_LIBRARY_PATH])
+      fi
+
+    fi
+
+  fi dnl NSS not disabled
+
+fi dnl OPENSSL != 1 -a GNUTLS_ENABLED != 1
+
+if test "x$OPENSSL_ENABLED" != "x1" -a "x$GNUTLS_ENABLED" != "x1" -a "x$NSS_ENABLED" != "x1"; then
+  AC_MSG_WARN([SSL disabled, you will not be able to use HTTPS, FTPS, NTLM and more.])
+  AC_MSG_WARN([Use --with-ssl, --with-gnutls or --with-nss to address this.])
+fi
+
 dnl **********************************************************************
 dnl Check for the CA bundle
 dnl **********************************************************************
Index: lib/Makefile.inc
===================================================================
RCS file: /cvsroot/curl/curl/lib/Makefile.inc,v
retrieving revision 1.14
diff -u -r1.14 Makefile.inc
--- lib/Makefile.inc	2 Nov 2006 21:56:43 -0000	1.14
+++ lib/Makefile.inc	23 Jan 2007 15:07:09 -0000
@@ -8,7 +8,7 @@
   content_encoding.c share.c http_digest.c md5.c http_negotiate.c	\
   http_ntlm.c inet_pton.c strtoofft.c strerror.c hostares.c hostasyn.c	\
   hostip4.c hostip6.c hostsyn.c hostthre.c inet_ntop.c parsedate.c	\
-  select.c gtls.c sslgen.c tftp.c splay.c strdup.c socks.c ssh.c
+  select.c gtls.c sslgen.c tftp.c splay.c strdup.c socks.c ssh.c nss.c
 
 HHEADERS = arpa_telnet.h netrc.h file.h timeval.h base64.h hostip.h	\
   progress.h formdata.h cookie.h http.h sendf.h ftp.h url.h dict.h	\
@@ -18,6 +18,7 @@
   share.h md5.h http_digest.h http_negotiate.h http_ntlm.h ca-bundle.h	\
   inet_pton.h strtoofft.h strerror.h inet_ntop.h curlx.h memory.h	\
   setup.h transfer.h select.h easyif.h multiif.h parsedate.h sslgen.h   \
-  gtls.h tftp.h sockaddr.h splay.h strdup.h setup_once.h socks.h ssh.h
+  gtls.h tftp.h sockaddr.h splay.h strdup.h setup_once.h socks.h ssh.h  \
+  nssg.h
 
 
Index: lib/http.c
===================================================================
RCS file: /cvsroot/curl/curl/lib/http.c,v
retrieving revision 1.303
diff -u -r1.303 http.c
--- lib/http.c	3 Nov 2006 12:43:56 -0000	1.303
+++ lib/http.c	23 Jan 2007 15:07:10 -0000
@@ -1479,6 +1479,18 @@
   (void)numsocks;
   return GETSOCK_BLANK;
 }
+#else
+#ifdef USE_NSS
+int Curl_https_getsock(struct connectdata *conn,
+                       curl_socket_t *socks,
+                       int numsocks)
+{
+  (void)conn;
+  (void)socks;
+  (void)numsocks;
+  return GETSOCK_BLANK;
+}
+#endif
 #endif
 #endif
 
Index: lib/nss.c
===================================================================
RCS file: lib/nss.c
diff -N lib/nss.c
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ lib/nss.c	23 Jan 2007 15:07:10 -0000
@@ -0,0 +1,717 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2006, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ * $Id: $
+ ***************************************************************************/
+
+/*
+ * Source file for all NSS-specific code for the TLS/SSL layer. No code
+ * but sslgen.c should ever call or use these functions.
+ */
+
+#include "setup.h"
+
+#include <string.h>
+#include <stdlib.h>
+#include <ctype.h>
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+
+#include "urldata.h"
+#include "sendf.h"
+#include "formdata.h" /* for the boundary function */
+#include "url.h" /* for the ssl config check function */
+#include "connect.h" /* Curl_sockerrno() proto */
+#include "strequal.h"
+#include "select.h"
+#include "sslgen.h"
+
+#define _MPRINTF_REPLACE /* use the internal *printf() functions */
+#include <curl/mprintf.h>
+
+#ifdef USE_NSS
+
+#include <nspr.h>
+#include <nss.h>
+#include <ssl.h>
+#include <sslerr.h>
+#include <secerr.h>
+#include <sslproto.h>
+#include <prtypes.h>
+#include <pk11pub.h>
+#include <termios.h>  /* for echo on/off */
+
+#include "memory.h"
+#include "easyif.h" /* for Curl_convert_from_utf8 prototype */
+
+/* The last #include file should be: */
+#include "memdebug.h"
+
+#ifndef min
+#define min(a, b)   ((a) < (b) ? (a) : (b))
+#endif
+
+PRFileDesc *PR_ImportTCPSocket(PRInt32 osfd);
+
+static int initialized = 0;
+static int noverify = 0;
+static char *prompt;
+
+typedef struct {
+    PRInt32 retryCount;
+    struct SessionHandle *data;
+} pphrase_arg_t;
+
+typedef struct {
+    const char *name;
+    int num;
+    PRInt32 version; /* protocol version valid for this cipher */
+} cipher_s;
+
+/* the table itself is defined in nss_engine_init.c */
+#ifdef NSS_ENABLE_ECC
+#define ciphernum 48
+#else
+#define ciphernum 23
+#endif
+
+enum sslversion { SSL2=1, SSL3=2, TLS=4};
+
+cipher_s cipherlist[ciphernum] =
+{
+  /* SSL2 cipher suites */
+  {"rc4", SSL_EN_RC4_128_WITH_MD5, SSL2},
+  {"rc4export", SSL_EN_RC4_128_EXPORT40_WITH_MD5, SSL2},
+  {"rc2", SSL_EN_RC2_128_CBC_WITH_MD5, SSL2},
+  {"rc2export", SSL_EN_RC2_128_CBC_EXPORT40_WITH_MD5, SSL2},
+  {"des", SSL_EN_DES_64_CBC_WITH_MD5, SSL2},
+  {"desede3", SSL_EN_DES_192_EDE3_CBC_WITH_MD5, SSL2},
+  /* SSL3/TLS cipher suites */
+  {"rsa_rc4_128_md5", SSL_RSA_WITH_RC4_128_MD5, SSL3 | TLS},
+  {"rsa_rc4_128_sha", SSL_RSA_WITH_RC4_128_SHA, SSL3 | TLS},
+  {"rsa_3des_sha", SSL_RSA_WITH_3DES_EDE_CBC_SHA, SSL3 | TLS},
+  {"rsa_des_sha", SSL_RSA_WITH_DES_CBC_SHA, SSL3 | TLS},
+  {"rsa_rc4_40_md5", SSL_RSA_EXPORT_WITH_RC4_40_MD5, SSL3 | TLS},
+  {"rsa_rc2_40_md5", SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5, SSL3 | TLS},
+  {"rsa_null_md5", SSL_RSA_WITH_NULL_MD5, SSL3 | TLS},
+  {"rsa_null_sha", SSL_RSA_WITH_NULL_SHA, SSL3 | TLS},
+  {"fips_3des_sha", SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA, SSL3 | TLS},
+  {"fips_des_sha", SSL_RSA_FIPS_WITH_DES_CBC_SHA, SSL3 | TLS},
+  {"fortezza", SSL_FORTEZZA_DMS_WITH_FORTEZZA_CBC_SHA, SSL3 | TLS},
+  {"fortezza_rc4_128_sha", SSL_FORTEZZA_DMS_WITH_RC4_128_SHA, SSL3 | TLS},
+  {"fortezza_null", SSL_FORTEZZA_DMS_WITH_NULL_SHA, SSL3 | TLS},
+  /* TLS 1.0: Exportable 56-bit Cipher Suites. */
+  {"rsa_des_56_sha", TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA, SSL3 | TLS},
+  {"rsa_rc4_56_sha", TLS_RSA_EXPORT1024_WITH_RC4_56_SHA, SSL3 | TLS},
+  /* AES ciphers.*/
+  {"rsa_aes_128_sha", TLS_RSA_WITH_AES_128_CBC_SHA, SSL3 | TLS},
+  {"rsa_aes_256_sha", TLS_RSA_WITH_AES_256_CBC_SHA, SSL3 | TLS},
+#ifdef NSS_ENABLE_ECC
+  /* ECC ciphers.*/
+  {"ecdh_ecdsa_null_sha", TLS_ECDH_ECDSA_WITH_NULL_SHA, TLS},
+  {"ecdh_ecdsa_rc4_128_sha", TLS_ECDH_ECDSA_WITH_RC4_128_SHA, TLS},
+  {"ecdh_ecdsa_3des_sha", TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA, TLS},
+  {"ecdh_ecdsa_aes_128_sha", TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, TLS},
+  {"ecdh_ecdsa_aes_256_sha", TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA, TLS},
+  {"ecdhe_ecdsa_null_sha", TLS_ECDHE_ECDSA_WITH_NULL_SHA, TLS},
+  {"ecdhe_ecdsa_rc4_128_sha", TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, TLS},
+  {"ecdhe_ecdsa_3des_sha", TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA, TLS},
+  {"ecdhe_ecdsa_aes_128_sha", TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS},
+  {"ecdhe_ecdsa_aes_256_sha", TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS},
+  {"ecdh_rsa_null_sha", TLS_ECDH_RSA_WITH_NULL_SHA, TLS},
+  {"ecdh_rsa_128_sha", TLS_ECDH_RSA_WITH_RC4_128_SHA, TLS},
+  {"ecdh_rsa_3des_sha", TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA, TLS},
+  {"ecdh_rsa_aes_128_sha", TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, TLS},
+  {"ecdh_rsa_aes_256_sha", TLS_ECDH_RSA_WITH_AES_256_CBC_SHA, TLS},
+  {"echde_rsa_null", TLS_ECDHE_RSA_WITH_NULL_SHA, TLS},
+  {"ecdhe_rsa_rc4_128_sha", TLS_ECDHE_RSA_WITH_RC4_128_SHA, TLS},
+  {"ecdhe_rsa_3des_sha", TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, TLS},
+  {"ecdhe_rsa_aes_128_sha", TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS},
+  {"ecdhe_rsa_aes_256_sha", TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, TLS},
+  {"ecdh_anon_null_sha", TLS_ECDH_anon_WITH_NULL_SHA, TLS},
+  {"ecdh_anon_rc4_128sha", TLS_ECDH_anon_WITH_RC4_128_SHA, TLS},
+  {"ecdh_anon_3des_sha", TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA, TLS},
+  {"ecdh_anon_aes_128_sha", TLS_ECDH_anon_WITH_AES_128_CBC_SHA, TLS},
+  {"ecdh_anon_aes_256_sha", TLS_ECDH_anon_WITH_AES_256_CBC_SHA, TLS},
+#endif
+};  
+
+SECStatus set_ciphers(struct SessionHandle *data, PRFileDesc *model, char *cipher_list)
+{
+  int i;
+  PRBool cipher_state[ciphernum];
+  PRBool found;
+  char *cipher;
+  SECStatus rv;
+
+  /* First disable all ciphers. This uses a different max value in case
+   * NSS adds more ciphers later we don't want them available by
+   * accident
+   */
+  for (i = 0; i < SSL_NumImplementedCiphers; i++)
+  {
+    SSL_CipherPrefSet(model, SSL_ImplementedCiphers[i], SSL_NOT_ALLOWED);
+  }
+
+  /* Set every entry in our list to false */
+  for (i=0; i<ciphernum; i++)
+  {
+    cipher_state[i] = PR_FALSE;
+  }
+
+  cipher = cipher_list;
+
+  while (cipher_list && (strlen(cipher_list)))
+  {
+    while ((*cipher) && (isspace(*cipher)))
+      ++cipher;
+
+    if ((cipher_list = strchr(cipher, ','))) {
+      *cipher_list++ = '\0';
+    }
+
+    found = PR_FALSE;
+
+    for (i = 0; i < ciphernum; i++)
+    {
+      if (!strcasecmp(cipher, cipherlist[i].name)) {
+        cipher_state[i] = PR_TRUE;
+        found = PR_TRUE;
+        break;
+      }
+    }
+
+    if (found == PR_FALSE) {
+      char buf[1024];
+      snprintf(buf, 1024, "Unknown cipher in list: %s", cipher);
+      failf(data, buf);
+      return SECFailure;
+    }
+
+    if (cipher_list) {
+      cipher = cipher_list;
+    }
+  }
+
+  /* Finally actually enable the selected ciphers */
+  for (i=0; i<ciphernum;i++) {
+    rv = SSL_CipherPrefSet(model, cipherlist[i].num, cipher_state[i]);
+    if (rv != SECSuccess) {
+      failf(data, "Unknown cipher in cipher list");
+      return SECFailure;
+    }
+  }
+
+  return SECSuccess;
+}
+
+/**
+ * Routines to get the token password.
+*/
+static void echoOff(int fd)
+{
+  if (isatty(fd)) {
+    struct termios tio;
+    tcgetattr(fd, &tio);
+    tio.c_lflag &= ~ECHO;
+    tcsetattr(fd, TCSAFLUSH, &tio);
+  }
+}
+
+static void echoOn(int fd)
+{
+  if (isatty(fd)) {
+    struct termios tio;
+    tcgetattr(fd, &tio);
+    tio.c_lflag |= ECHO;
+    tcsetattr(fd, TCSAFLUSH, &tio);
+  }
+}
+
+static char *nss_get_password(FILE *input, FILE *output,
+                                       PK11SlotInfo *slot,
+                                       PRBool (*ok)(unsigned char *),
+                                       pphrase_arg_t *parg)
+{
+    char *token_name = NULL;
+    unsigned char phrase[200];
+    int infd = fileno(input);
+    int isTTY = isatty(infd);
+
+    token_name = PK11_GetTokenName(slot);
+
+    if (parg->data->set.key_passwd)
+        return (char*) PORT_Strdup((char*)parg->data->set.key_passwd);
+
+    for (;;) {
+        /* Prompt for password */
+        if (isTTY) {
+            if (parg->retryCount > 0) {
+                fprintf(output, "Password incorrect. Please try again.\n");
+            }
+            fprintf(output, "%s", prompt);
+            echoOff(infd);
+        }
+        fgets((char*) phrase, sizeof(phrase), input);
+        if (isTTY) {
+            fprintf(output, "\n");
+            echoOn(infd);
+        }
+        /* stomp on newline */
+        phrase[strlen((char*)phrase)-1] = 0;
+
+        /* Validate password */
+        if (!(*ok)(phrase)) {
+            /* Not weird enough */
+            if (!isTTY) return 0;
+            fprintf(output, "Password must be at least 8 characters long with one or more\n");
+            fprintf(output, "non-alphabetic characters\n");
+            continue;
+        }
+        return (char*) PORT_Strdup((char*)phrase);
+    }
+}
+
+/**
+ * This function verifies that the user has selected a "good" password.
+ * In this case we really don't care.
+ */
+static PRBool nss_check_password(unsigned char *cp)
+{
+  /* FIXME: do something useful */
+  return PR_TRUE;
+}
+
+static char * nss_password_prompt(PK11SlotInfo *slot, PRBool retry, void *arg)
+{
+    char *passwd = NULL;
+    pphrase_arg_t *parg = (pphrase_arg_t *)arg;
+
+    if (arg && retry) {
+        parg->retryCount++;
+    }
+    prompt = PR_smprintf("Please enter password for \"%s\" token:", PK11_GetTokenName(slot));
+    if (parg == NULL) {
+        /* should not happen */
+        passwd = nss_get_password(stdin, stdout, slot, nss_check_password, 0);
+    } else {
+        if (parg->retryCount > 2) {
+            passwd = NULL; /* abort after 2 retries (3 failed attempts) */
+        } else {
+            passwd = nss_get_password(stdin, stdout, slot, nss_check_password, parg);
+        }
+    }
+
+    return passwd;
+}
+
+SECStatus nss_Init_Tokens(struct connectdata *conn)
+{
+    PK11SlotList        *slotList;
+    PK11SlotListElement *listEntry;
+    SECStatus ret, status = SECSuccess;
+    pphrase_arg_t * parg;
+
+    parg = (pphrase_arg_t*)malloc(sizeof(*parg));
+    parg->retryCount = 0;
+    parg->data = conn->data;
+
+    PK11_SetPasswordFunc(nss_password_prompt);
+
+    slotList = PK11_GetAllTokens(CKM_INVALID_MECHANISM, PR_FALSE, PR_TRUE, NULL);
+
+    for (listEntry = PK11_GetFirstSafe(slotList);
+        listEntry;
+        listEntry = listEntry->next)
+    {
+        PK11SlotInfo *slot = listEntry->slot;
+
+        if (PK11_NeedLogin(slot) && PK11_NeedUserInit(slot)) {
+            if (slot == PK11_GetInternalKeySlot()) {
+              failf(conn->data,"The NSS database has not been initialized.\n");
+            } else {
+              failf(conn->data,"The token %s has not been initialized.", PK11_GetTokenName(slot));
+            }
+            PK11_FreeSlot(slot);
+            continue;
+        }
+
+        ret = PK11_Authenticate(slot, PR_TRUE, parg);
+        if (SECSuccess != ret) {
+            status = SECFailure;
+            break;
+        }
+        parg->retryCount = 0; /* reset counter to 0 for the next token */
+        PK11_FreeSlot(slot);
+    }
+
+    free(parg);
+    return status;
+}
+
+/** Return error string for last NSS error
+ */
+static char *NSS_strerror(unsigned long error, char *buf, size_t size)
+{
+  PR_snprintf(buf, size, "NSS error: %d", error);
+  return (buf);
+}
+
+static SECStatus
+BadCertHandler(void *arg, PRFileDesc *socket)
+{
+  SECStatus success = SECSuccess;
+  PRErrorCode err;
+  char *host = NULL;
+
+    return SECSuccess;
+
+  if (!arg) {
+    return SECFailure;
+  }
+
+  if (noverify)
+    return SECSuccess;
+
+  *(PRErrorCode *)arg = err = PORT_GetError();
+
+  if (err != SEC_ERROR_CERT_VALID)
+  {
+    success = SECFailure;
+  }
+
+  return success;
+}
+
+/**
+ * Inform the application that the handshake is complete.
+ */
+static SECStatus
+HandshakeCallback(PRFileDesc *socket, void *arg)
+{
+    return SECSuccess;
+}
+
+/**
+ *
+ * Callback to pick the SSL client certificate.
+ */
+SECStatus
+SelectClientCert(void *arg, PRFileDesc *socket,
+                 struct CERTDistNamesStr *caNames,
+                 struct CERTCertificateStr **pRetCert,
+                 struct SECKEYPrivateKeyStr **pRetKey)
+{
+  CERTCertificate *cert;
+  SECKEYPrivateKey *privKey;
+  char *nickname = (char *)arg;
+  void *proto_win = NULL;
+  SECStatus secStatus = SECFailure;
+
+  proto_win = SSL_RevealPinArg(socket);
+
+  cert = PK11_FindCertFromNickname(nickname, proto_win);
+  if (cert) {
+    privKey = PK11_FindKeyByAnyCert(cert, proto_win);
+    if (privKey) {
+      secStatus = SECSuccess;
+    } else {
+      CERT_DestroyCertificate(cert);
+    }
+  }
+
+  if (secStatus == SECSuccess) {
+    *pRetCert = cert;
+    *pRetKey  = privKey;
+  }
+
+  return secStatus;
+}
+
+/**
+ * Global SSL init
+ *
+ * @retval 0 error initializing SSL
+ * @retval 1 SSL initialized successfully
+ */
+int Curl_nss_init(void)
+{
+  if (!initialized) 
+    PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 256);
+
+  /* We will actually initialize NSS later */
+
+  return 1;
+}
+
+/* Global cleanup */
+void Curl_nss_cleanup(void)
+{
+  NSS_Shutdown();
+  initialized = 0;
+}
+
+/*
+ * This function uses SSL_peek to determine connection status.
+ *
+ * Return codes:
+ *     1 means the connection is still in place
+ *     0 means the connection has been closed
+ *    -1 means the connection status is unknown
+ */
+int Curl_nss_check_cxn(struct connectdata *conn)
+{
+  int rc;
+  char buf;
+
+  rc = PR_Recv(conn->ssl[FIRSTSOCKET].handle, (void*)&buf, 1, PR_MSG_PEEK, PR_SecondsToInterval(1));
+  if (rc > 0)
+    return 1; /* connection still in place */
+
+  if (rc == 0)
+    return 0; /* connection has been closed */
+
+  return -1; /* connection status unknown */
+}
+
+/*
+ * This function is called when an SSL connection is closed.
+ */
+void Curl_nss_close(struct connectdata *conn)
+{
+  int i;
+
+  for(i=0; i<2; i++) {
+    struct ssl_connect_data *connssl = &conn->ssl[i];
+
+    if(connssl->handle) {
+      PR_Close(connssl->handle);
+      connssl->handle = NULL;
+    }
+    connssl->use = FALSE; /* get back to ordinary socket usage */
+  }
+}
+
+/*
+ * This function is called when the 'data' struct is going away. Close
+ * down everything and free all resources!
+ */
+int Curl_nss_close_all(struct SessionHandle *data)
+{
+  (void)data;
+  return 0;
+}
+
+CURLcode
+Curl_nss_connect(struct connectdata *conn,
+                 int sockindex)
+{
+  PRInt32 err;
+  PRFileDesc * model = NULL;
+  PRBool ssl2, ssl3, tlsv1;
+  struct SessionHandle *data = conn->data;
+  curl_socket_t sockfd = conn->sock[sockindex];
+  struct ssl_connect_data *connssl = &conn->ssl[sockindex];
+  SECStatus rv;
+  int curlerr = CURLE_SSL_CONNECT_ERROR;
+
+  /* FIXME. NSS doesn't support multiple databases open at the same time. */
+  if (!initialized) {
+    if (!data->set.ssl.CAfile) {
+      if (data->set.ssl.verifypeer) {
+        failf(data, "No NSS database, use --cacert or -k.");
+        return CURLE_SSL_CACERT_BADFILE;
+      } else {
+        rv = NSS_NoDB_Init(NULL);
+        noverify = 1;
+      }
+    } else {
+      rv = NSS_Initialize(data->set.ssl.CAfile, NULL, NULL, "secmod.db", NSS_INIT_READONLY);
+    }
+    if (rv != SECSuccess) {
+      curlerr = CURLE_SSL_CACERT_BADFILE;
+      goto error;
+    }
+  }
+
+  NSS_SetDomesticPolicy();
+
+  model = PR_NewTCPSocket();
+  if (!model)
+    goto error;
+  model = SSL_ImportFD(NULL, model);
+
+  if (SSL_OptionSet(model, SSL_SECURITY, PR_TRUE) != SECSuccess)
+    goto error;
+  if (SSL_OptionSet(model, SSL_HANDSHAKE_AS_SERVER, PR_FALSE) != SECSuccess)
+    goto error;
+  if (SSL_OptionSet(model, SSL_HANDSHAKE_AS_CLIENT, PR_TRUE) != SECSuccess)
+    goto error;
+
+  ssl2 = ssl3 = tlsv1 = PR_FALSE;
+
+  switch(data->set.ssl.version) {
+  default:
+  case CURL_SSLVERSION_DEFAULT:
+    ssl2 = ssl3 = tlsv1 = PR_TRUE;
+    break;
+  case CURL_SSLVERSION_TLSv1:
+    tlsv1 = PR_TRUE;
+    break;
+  case CURL_SSLVERSION_SSLv2:
+    ssl2 = PR_TRUE;
+    break;
+  case CURL_SSLVERSION_SSLv3:
+    ssl3 = PR_TRUE;
+    break;
+  }
+
+  if (SSL_OptionSet(model, SSL_ENABLE_SSL2, ssl2) != SECSuccess)
+    goto error;
+  if (SSL_OptionSet(model, SSL_ENABLE_SSL3, ssl3) != SECSuccess)
+    goto error;
+  if (SSL_OptionSet(model, SSL_ENABLE_TLS, tlsv1) != SECSuccess)
+    goto error;
+
+  if (data->set.ssl.cipher_list) {
+    if (set_ciphers(data, model, data->set.ssl.cipher_list) != SECSuccess)
+      goto error;
+  }
+
+  if (SSL_BadCertHook(model, (SSLBadCertHandler)BadCertHandler, NULL)
+      != SECSuccess)
+    goto error;
+  if (SSL_HandshakeCallback(model, (SSLHandshakeCallback)HandshakeCallback,
+      NULL) != SECSuccess)
+    goto error;
+
+  if (data->set.cert) {
+    if(SSL_GetClientAuthDataHook(model,
+                                (SSLGetClientAuthData)SelectClientCert,
+                                (void *)data->set.cert) != SECSuccess) {
+      curlerr = CURLE_SSL_CERTPROBLEM;
+      goto error;
+    }
+    if (nss_Init_Tokens(conn) != SECSuccess)
+      goto error;
+  }
+
+  /* Import our model socket  onto the existing file descriptor */
+  connssl->handle = PR_ImportTCPSocket(sockfd);
+  connssl->handle = SSL_ImportFD(model, connssl->handle);
+  if (!connssl->handle)
+    goto error;
+
+  /* Force handshake on next I/O */
+  SSL_ResetHandshake(connssl->handle, /* asServer */ PR_FALSE);
+
+  SSL_SetURL(connssl->handle, conn->host.name);
+
+  return CURLE_OK;
+
+error:
+  err = PR_GetError();
+  failf(data, "NSS error %d", err);
+  if (model)
+    PR_Close(model);
+  return curlerr;
+}
+
+/* return number of sent (non-SSL) bytes */
+int Curl_nss_send(struct connectdata *conn,
+                  int sockindex,
+                  void *mem,
+                  size_t len)
+{
+  PRInt32 err;
+  struct SessionHandle *data = conn->data;
+  PRInt32 timeout;
+
+  if (data->set.timeout)
+    timeout = PR_SecondsToInterval(data->set.timeout);
+  else
+    timeout = PR_MillisecondsToInterval(DEFAULT_CONNECT_TIMEOUT);
+
+  int rc = PR_Send(conn->ssl[sockindex].handle, mem, (int)len, 0, timeout);
+
+  if (rc < 0) {
+    err = PR_GetError();
+
+    if (err == PR_IO_TIMEOUT_ERROR) {
+      failf(data, "SSL connection timeout");
+      return CURLE_OPERATION_TIMEOUTED;
+    }
+
+    failf(conn->data, "SSL write: error %d\n", err);
+    return -1;
+  }
+  return rc; /* number of bytes */
+}
+
+/*
+ * If the read would block we return -1 and set 'wouldblock' to TRUE.
+ * Otherwise we return the amount of data read. Other errors should return -1
+ * and set 'wouldblock' to FALSE.
+ */
+ssize_t Curl_nss_recv(struct connectdata *conn, /* connection data */
+                      int num,                  /* socketindex */
+                      char *buf,                /* store read data here */
+                      size_t buffersize,        /* max amount to read */
+                      bool *wouldblock)
+{
+  ssize_t nread;
+  struct SessionHandle *data = conn->data;
+  PRInt32 timeout;
+
+  if (data->set.timeout)
+    timeout = PR_SecondsToInterval(data->set.timeout);
+  else
+    timeout = PR_MillisecondsToInterval(DEFAULT_CONNECT_TIMEOUT);
+
+  nread = PR_Recv(conn->ssl[num].handle, buf, (int)buffersize, 0, timeout);
+  *wouldblock = FALSE;
+  if (nread < 0) {
+    /* failed SSL_read */
+    PRInt32 err = PR_GetError();
+
+    if (err == PR_WOULD_BLOCK_ERROR) {
+      *wouldblock = TRUE;
+      return -1; /* basically EWOULDBLOCK */
+    }
+    if (err == PR_IO_TIMEOUT_ERROR) {
+      failf(data, "SSL connection timeout");
+      return CURLE_OPERATION_TIMEOUTED;
+    }
+    failf(conn->data, "SSL read: errno %d",
+          err);
+    return -1;
+  }
+  return nread;
+}
+
+size_t Curl_nss_version(char *buffer, size_t size)
+{
+  return snprintf(buffer, size, "%s", NSS_VERSION);
+}
+#endif /* USE_NSS */
Index: lib/nssg.h
===================================================================
RCS file: lib/nssg.h
diff -N lib/nssg.h
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ lib/nssg.h	23 Jan 2007 15:07:10 -0000
@@ -0,0 +1,57 @@
+#ifndef __NSS_H
+#define __NSS_H
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2006, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ * $Id: $
+ ***************************************************************************/
+
+/*
+ * This header should only be needed to get included by sslgen.c and nss.c
+ */
+
+#include "urldata.h"
+CURLcode Curl_nss_connect(struct connectdata *conn, int sockindex);
+CURLcode Curl_nss_connect_nonblocking(struct connectdata *conn, 
+                                       int sockindex, 
+                                       bool *done);
+void Curl_nss_close(struct connectdata *conn); /* close a SSL connection */
+/* tell NSS to close down all open information regarding connections (and
+   thus session ID caching etc) */
+int Curl_nss_close_all(struct SessionHandle *data);
+
+int Curl_nss_init(void);
+void Curl_nss_cleanup(void);
+
+int Curl_nss_send(struct connectdata *conn,
+                   int sockindex,
+                   void *mem,
+                   size_t len);
+ssize_t Curl_nss_recv(struct connectdata *conn, /* connection data */
+                       int num,                  /* socketindex */
+                       char *buf,                /* store read data here */
+                       size_t buffersize,        /* max amount to read */
+                       bool *wouldblock);
+
+size_t Curl_nss_version(char *buffer, size_t size);
+int Curl_nss_check_cxn(struct connectdata *cxn);
+int Curl_nss_seed(struct SessionHandle *data);
+
+#endif
Index: lib/setup.h
===================================================================
RCS file: /cvsroot/curl/curl/lib/setup.h,v
retrieving revision 1.123
diff -u -r1.123 setup.h
--- lib/setup.h	18 Oct 2006 15:57:49 -0000	1.123
+++ lib/setup.h	23 Jan 2007 15:07:11 -0000
@@ -348,7 +348,7 @@
 #define HAVE_INET_NTOA_R_2_ARGS 1
 #endif
 
-#if defined(USE_GNUTLS) || defined(USE_SSLEAY)
+#if defined(USE_GNUTLS) || defined(USE_SSLEAY) || defined(USE_NSS)
 #define USE_SSL    /* Either OpenSSL || GnuTLS */
 #endif
 
Index: lib/sslgen.c
===================================================================
RCS file: /cvsroot/curl/curl/lib/sslgen.c,v
retrieving revision 1.11
diff -u -r1.11 sslgen.c
--- lib/sslgen.c	12 Sep 2006 23:51:01 -0000	1.11
+++ lib/sslgen.c	23 Jan 2007 15:07:11 -0000
@@ -31,6 +31,7 @@
    Curl_ssl_ - prefix for generic ones
    Curl_ossl_ - prefix for OpenSSL ones
    Curl_gtls_ - prefix for GnuTLS ones
+   Curl_nss_ - prefix for NSS ones
 
    "SSL/TLS Strong Encryption: An Introduction"
    http://httpd.apache.org/docs-2.0/ssl/ssl_intro.html
@@ -52,6 +53,7 @@
 #include "sslgen.h" /* generic SSL protos etc */
 #include "ssluse.h" /* OpenSSL versions */
 #include "gtls.h"   /* GnuTLS versions */
+#include "nssg.h"   /* NSS versions */
 #include "sendf.h"
 #include "strequal.h"
 #include "url.h"
@@ -169,8 +171,12 @@
 #ifdef USE_GNUTLS
   return Curl_gtls_init();
 #else
+#ifdef USE_NSS
+  return Curl_nss_init();
+#else
   /* no SSL support */
   return 1;
+#endif /* USE_NSS */
 #endif /* USE_GNUTLS */
 #endif /* USE_SSLEAY */
 }
@@ -186,6 +192,9 @@
 #else
 #ifdef USE_GNUTLS
     Curl_gtls_cleanup();
+#ifdef USE_NSS
+    Curl_nss_cleanup();
+#endif /* USE_NSS */
 #endif /* USE_GNUTLS */
 #endif /* USE_SSLEAY */
     init_ssl = FALSE;
@@ -204,6 +213,10 @@
 #else
 #ifdef USE_GNUTLS
   return Curl_gtls_connect(conn, sockindex);
+#else
+#ifdef USE_NSS
+  return Curl_nss_connect(conn, sockindex);
+#endif /* USE_NSS */
 #endif /* USE_GNUTLS */
 #endif /* USE_SSLEAY */
 
@@ -225,11 +238,15 @@
   return Curl_ossl_connect_nonblocking(conn, sockindex, done);
 
 #else
+#ifdef USE_NSS
+  return Curl_nss_connect(conn, sockindex);
+#else
   /* not implemented!
      fallback to BLOCKING call. */
   *done = TRUE;
   return Curl_ssl_connect(conn, sockindex);
-#endif
+#endif /* USE_NSS */
+#endif /* USE_SSLEAY */
 }
 
 #ifdef USE_SSL
@@ -283,8 +300,14 @@
 #ifdef USE_SSLEAY
     Curl_ossl_session_free(session->sessionid);
 #else
+#ifdef USE_GNUTLS
     Curl_gtls_session_free(session->sessionid);
-#endif
+#else
+#ifdef USE_NSS
+    /* NSS has its own session ID cache */
+#endif /* USE_NSS */
+#endif /* USE_GNUTLS */
+#endif /* USE_SSLEAY */
     session->sessionid=NULL;
     session->age = 0; /* fresh */
 
@@ -375,6 +398,10 @@
 #else
 #ifdef USE_GNUTLS
   Curl_gtls_close_all(data);
+#else
+#ifdef USE_NSS
+  Curl_nss_close_all(data);
+#endif /* USE_NSS */
 #endif /* USE_GNUTLS */
 #endif /* USE_SSLEAY */
 #else /* USE_SSL */
@@ -391,7 +418,11 @@
 #ifdef USE_GNUTLS
     Curl_gtls_close(conn);
 #else
+#ifdef USE_GNUTLS
+    Curl_nss_close(conn);
+#else
   (void)conn;
+#endif /* USE_NSS */
 #endif /* USE_GNUTLS */
 #endif /* USE_SSLEAY */
   }
@@ -410,10 +441,17 @@
   (void)engine;
   return CURLE_FAILED_INIT;
 #else
+#ifdef USE_NSS
+  /* NSS doesn't set an engine this way */
+  (void)data;
+  (void)engine;
+  return CURLE_FAILED_INIT;
+#else
   /* no SSL layer */
   (void)data;
   (void)engine;
   return CURLE_FAILED_INIT;
+#endif /* USE_NSS */
 #endif /* USE_GNUTLS */
 #endif /* USE_SSLEAY */
 }
@@ -430,9 +468,15 @@
   (void)data;
   return CURLE_FAILED_INIT;
 #else
+#ifdef USE_NSS
+  /* A no-op for NSS */
+  (void)data;
+  return CURLE_FAILED_INIT;
+#else
   /* No SSL layer */
   (void)data;
   return CURLE_FAILED_INIT;
+#endif /* USE_NSS */
 #endif /* USE_GNUTLS */
 #endif /* USE_SSLEAY */
 }
@@ -448,8 +492,14 @@
   (void)data;
   return NULL;
 #else
+#ifdef USE_NSS
+  /* In theory we could return the PKCS#11 modules loaded but that
+   * would just confuse things */
   (void)data;
   return NULL;
+  (void)data;
+  return NULL;
+#endif /* USE_NSS */
 #endif /* USE_GNUTLS */
 #endif /* USE_SSLEAY */
 }
@@ -466,11 +516,15 @@
 #ifdef USE_GNUTLS
   return Curl_gtls_send(conn, sockindex, mem, len);
 #else
+#ifdef USE_NSS
+  return Curl_nss_send(conn, sockindex, mem, len);
+#else
   (void)conn;
   (void)sockindex;
   (void)mem;
   (void)len;
   return 0;
+#endif /* USE_NSS */
 #endif /* USE_GNUTLS */
 #endif /* USE_SSLEAY */
 }
@@ -495,6 +549,10 @@
 #else
 #ifdef USE_GNUTLS
   nread = Curl_gtls_recv(conn, sockindex, mem, len, &block);
+#else
+#ifdef USE_NSS
+  nread = Curl_nss_recv(conn, sockindex, mem, len, &block);
+#endif /* USE_NSS */
 #endif /* USE_GNUTLS */
 #endif /* USE_SSLEAY */
   if(nread == -1) {
@@ -555,9 +613,13 @@
 #ifdef USE_GNUTLS
   return Curl_gtls_version(buffer, size);
 #else
+#ifdef USE_NSS
+  return Curl_nss_version(buffer, size);
+#else
   (void)buffer;
   (void)size;
   return 0; /* no SSL support */
+#endif /* USE_NSS */
 #endif /* USE_GNUTLS */
 #endif /* USE_SSLEAY */
 }
@@ -576,8 +638,12 @@
 #ifdef USE_SSLEAY
   return Curl_ossl_check_cxn(conn);
 #else
+#ifdef USE_NSS
+  return Curl_nss_check_cxn(conn);
+#else
   (void)conn;
   /* TODO: we lack implementation of this for GnuTLS */
   return -1; /* connection status unknown */
+#endif /* USE_NSS */
 #endif /* USE_SSLEAY */
 }
Index: lib/urldata.h
===================================================================
RCS file: /cvsroot/curl/curl/lib/urldata.h,v
retrieving revision 1.308
diff -u -r1.308 urldata.h
--- lib/urldata.h	3 Nov 2006 12:43:56 -0000	1.308
+++ lib/urldata.h	23 Jan 2007 15:07:13 -0000
@@ -78,6 +78,10 @@
 #include <gnutls/gnutls.h>
 #endif
 
+#ifdef USE_NSS
+#include <nspr.h>
+#endif
+
 #ifdef HAVE_NETINET_IN_H
 #include <netinet/in.h>
 #endif
@@ -169,6 +173,9 @@
   gnutls_session session;
   gnutls_certificate_credentials cred;
 #endif /* USE_GNUTLS */
+#ifdef USE_NSS
+  PRFileDesc *handle;
+#endif /* USE_NSS */
 };
 
 struct ssl_config_data {
Index: tests/runtests.pl
===================================================================
RCS file: /cvsroot/curl/curl/tests/runtests.pl,v
retrieving revision 1.212
diff -u -r1.212 runtests.pl
--- tests/runtests.pl	9 Nov 2006 13:20:42 -0000	1.212
+++ tests/runtests.pl	23 Jan 2007 15:07:14 -0000
@@ -143,6 +143,7 @@
 my $has_ntlm;    # set if libcurl is built with NTLM support
 my $has_openssl; # set if libcurl is built with OpenSSL
 my $has_gnutls;  # set if libcurl is built with GnuTLS
+my $has_nss;     # set if libcurl is built with NSS
 my $has_textaware; # set if running on a system that has a text mode concept
   # on files. Windows for example
 
@@ -955,6 +956,10 @@
                # GnuTLS in use
                $has_gnutls=1;
            }
+           elsif ($libcurl =~ /nss/i) {
+               # NSS in use
+               $has_nss=1;
+           }
         }
         elsif($_ =~ /^Protocols: (.*)/i) {
             # these are the supported protocols, we don't use this knowledge
@@ -1083,7 +1088,7 @@
 
     if($ssl_version) {
         logmsg sprintf("* SSL library:    %s\n",
-               $has_gnutls?"GnuTLS":($has_openssl?"OpenSSL":"<unknown>"));
+               $has_gnutls?"GnuTLS":($has_openssl?"OpenSSL":($has_nss?"NSS":"<unknown>")));
     }
 
     $has_textaware = ($^O eq 'MSWin32') || ($^O eq 'msys');
@@ -1178,6 +1183,11 @@
                 next;
             }
         }
+        elsif($f eq "NSS") {
+            if($has_nss) {
+                next;
+            }
+        }
         elsif($f eq "netrc_debug") {
             if($curl_debug) {
                 next;


