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bc511a64f6
Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
101 lines
3.1 KiB
C
101 lines
3.1 KiB
C
/* GnuTLS glue for GNU Emacs.
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Copyright (C) 2010-2017 Free Software Foundation, Inc.
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This file is part of GNU Emacs.
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GNU Emacs is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or (at
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your option) any later version.
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GNU Emacs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef EMACS_GNUTLS_DEFINED
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#define EMACS_GNUTLS_DEFINED
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#ifdef HAVE_GNUTLS
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#include <gnutls/gnutls.h>
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#include <gnutls/x509.h>
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#if 0x030000 <= GNUTLS_VERSION_NUMBER
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# define HAVE_GNUTLS3
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# include <gnutls/crypto.h>
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#endif
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#include "lisp.h"
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/* This limits the attempts to handshake per process (connection). It
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should work out to about one minute in asynchronous cases. */
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#define GNUTLS_EMACS_HANDSHAKES_LIMIT 6000
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typedef enum
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{
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/* Initialization stages. */
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GNUTLS_STAGE_EMPTY = 0,
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GNUTLS_STAGE_CRED_ALLOC,
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GNUTLS_STAGE_FILES,
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GNUTLS_STAGE_CALLBACKS,
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GNUTLS_STAGE_INIT,
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GNUTLS_STAGE_PRIORITY,
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GNUTLS_STAGE_CRED_SET,
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/* Handshake stages. */
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GNUTLS_STAGE_HANDSHAKE_CANDO = GNUTLS_STAGE_CRED_SET,
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GNUTLS_STAGE_TRANSPORT_POINTERS_SET,
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GNUTLS_STAGE_HANDSHAKE_TRIED,
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GNUTLS_STAGE_READY
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} gnutls_initstage_t;
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#define GNUTLS_EMACS_ERROR_NOT_LOADED (GNUTLS_E_APPLICATION_ERROR_MIN + 1)
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#define GNUTLS_EMACS_ERROR_INVALID_TYPE GNUTLS_E_APPLICATION_ERROR_MIN
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#define GNUTLS_INITSTAGE(proc) (XPROCESS (proc)->gnutls_initstage)
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#define GNUTLS_PROCESS_USABLE(proc) \
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(GNUTLS_INITSTAGE (proc) >= GNUTLS_STAGE_READY)
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#define GNUTLS_LOG(level, max, string) \
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do { \
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if ((level) <= (max)) \
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gnutls_log_function (level, "(Emacs) " string); \
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} while (false)
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#define GNUTLS_LOG2(level, max, string, extra) \
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do { \
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if ((level) <= (max)) \
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gnutls_log_function2 (level, "(Emacs) " string, extra); \
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} while (false)
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#define GNUTLS_LOG2i(level, max, string, extra) \
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do { \
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if ((level) <= (max)) \
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message ("gnutls.c: [%d] %s %d", level, string, extra); \
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} while (false)
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extern ptrdiff_t
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emacs_gnutls_write (struct Lisp_Process *proc, const char *buf, ptrdiff_t nbyte);
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extern ptrdiff_t
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emacs_gnutls_read (struct Lisp_Process *proc, char *buf, ptrdiff_t nbyte);
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extern ptrdiff_t emacs_gnutls_record_check_pending (gnutls_session_t state);
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#ifdef WINDOWSNT
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extern void emacs_gnutls_transport_set_errno (gnutls_session_t state, int err);
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extern int w32_gnutls_rnd (gnutls_rnd_level_t, void *, size_t);
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#endif
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extern Lisp_Object emacs_gnutls_deinit (Lisp_Object);
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extern Lisp_Object emacs_gnutls_global_init (void);
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extern int gnutls_try_handshake (struct Lisp_Process *p);
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extern Lisp_Object gnutls_verify_boot (Lisp_Object proc, Lisp_Object proplist);
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#endif
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extern void syms_of_gnutls (void);
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#endif
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