--- /dev/null
+/* SSL support.
+ Copyright (C) 2000 Christian Fraenkel.
+
+This file is part of Wget.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <config.h>
+#ifdef HAVE_SSL
+#include <openssl/bio.h>
+#include <openssl/crypto.h>
+#include <openssl/x509.h>
+#include <openssl/ssl.h>
+#include <openssl/err.h>
+#include <openssl/pem.h>
+#include <assert.h>
+#define SSL_ERR_CTX_CREATION -2
+#include <sys/time.h>
+#include "wget.h"
+#include "connect.h"
+int verify_callback(int ok, X509_STORE_CTX *ctx);
+
+/* Creates a SSL Context and sets some defaults for it */
+int init_ssl(SSL_CTX **ctx)
+{
+SSL_METHOD *meth=NULL;
+int verify=SSL_VERIFY_NONE;
+ SSL_library_init();
+ SSL_load_error_strings();
+ SSLeay_add_all_algorithms();
+ SSLeay_add_ssl_algorithms();
+ meth = SSLv23_client_method();
+ *ctx = SSL_CTX_new(meth);
+ SSL_CTX_set_verify(*ctx,verify,verify_callback);
+ if (*ctx==NULL) return SSL_ERR_CTX_CREATION;
+return 0; /* Succeded */
+}
+
+/* Sets up a SSL structure and performs the handshake on fd
+ Returns 0 if everything went right
+ Returns 1 if something went wrong ----- TODO: More exit codes
+*/
+int connect_ssl (SSL **con, SSL_CTX *ctx, int fd)
+{
+ *con=(SSL *)SSL_new(ctx);
+ SSL_set_fd(*con,fd);
+ SSL_set_connect_state(*con);
+ SSL_connect(*con);
+ if ((*con)->state !=SSL_ST_OK)
+ return 1;
+return 0;
+}
+
+void shutdown_ssl (SSL* con)
+{
+ SSL_shutdown(con);
+ if (con != NULL) SSL_free(con);
+}
+
+void free_ssl_ctx (SSL_CTX * ctx) {
+ SSL_CTX_free(ctx);
+}
+
+int verify_callback(int ok, X509_STORE_CTX *ctx){
+char *s,buf[256];
+ s=X509_NAME_oneline(X509_get_subject_name(ctx->current_cert),buf,256);
+ if (ok == 0) {
+ switch (ctx->error) {
+ case X509_V_ERR_CERT_NOT_YET_VALID:
+ case X509_V_ERR_CERT_HAS_EXPIRED:
+ case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
+ ok=1;
+ }
+ }
+ return(ok);
+}
+
+/* SSL version of iread. Only exchanged read for SSL_read
+ Read at most LEN bytes from FD, storing them to BUF. This is
+ virtually the same as read(), but takes care of EINTR braindamage
+ and uses select() to timeout the stale connections (a connection is
+ stale if more than OPT.TIMEOUT time is spent in select() or
+ read()). */
+int
+ssl_iread (SSL *con, char *buf, int len)
+{
+ int res;
+ int fd;
+ BIO_get_fd(con->rbio,&fd);
+ do
+ {
+#ifdef HAVE_SELECT
+ if (opt.timeout)
+ {
+
+ do
+ {
+ res = select_fd (fd, opt.timeout, 0);
+ }
+ while (res == -1 && errno == EINTR);
+ if (res <= 0)
+ {
+ /* Set errno to ETIMEDOUT on timeout. */
+ if (res == 0)
+ /* #### Potentially evil! */
+ errno = ETIMEDOUT;
+ return -1;
+ }
+ }
+#endif
+ res = SSL_read (con, buf, len);
+ }
+ while (res == -1 && errno == EINTR);
+
+ return res;
+}
+
+/* SSL version of iwrite. Only exchanged write for SSL_write
+ Write LEN bytes from BUF to FD. This is similar to iread(), but
+ doesn't bother with select(). Unlike iread(), it makes sure that
+ all of BUF is actually written to FD, so callers needn't bother
+ with checking that the return value equals to LEN. Instead, you
+ should simply check for -1. */
+int
+ssl_iwrite (SSL *con, char *buf, int len)
+{
+ int res = 0;
+ int fd;
+ BIO_get_fd(con->rbio,&fd);
+ /* `write' may write less than LEN bytes, thus the outward loop
+ keeps trying it until all was written, or an error occurred. The
+ inner loop is reserved for the usual EINTR f*kage, and the
+ innermost loop deals with the same during select(). */
+ while (len > 0)
+ {
+ do
+ {
+#ifdef HAVE_SELECT
+ if (opt.timeout)
+ {
+ do
+ {
+ res = select_fd (fd, opt.timeout, 1);
+ }
+ while (res == -1 && errno == EINTR);
+ if (res <= 0)
+ {
+ /* Set errno to ETIMEDOUT on timeout. */
+ if (res == 0)
+ /* #### Potentially evil! */
+ errno = ETIMEDOUT;
+ return -1;
+ }
+ }
+#endif
+ res = SSL_write (con, buf, len);
+ }
+ while (res == -1 && errno == EINTR);
+ if (res <= 0)
+ break;
+ buf += res;
+ len -= res;
+ }
+ return res;
+}
+#endif /* HAVE_SSL */
--- /dev/null
+/* SSL support.
+ Copyright (C) 2000 Christian Fraenkel.
+
+This file is part of Wget.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#ifdef HAVE_SSL
+# include <openssl/ssl.h>
+#endif
+
+int init_ssl(SSL_CTX **ctx);
+int connect_ssl (SSL **con, SSL_CTX *ctx, int fd);
+void shutdown_ssl (SSL* con);
+void free_ssl_ctx (SSL_CTX * ctx);
+int verify_callback(int ok, X509_STORE_CTX *ctx);
+int ssl_iread (SSL *con, char *buf, int len);
+int ssl_iwrite (SSL *con, char *buf, int len);
+