LCOV - code coverage report
Current view: top level - src - context.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 3 77 3.9 %
Date: 2016-09-12 12:52:30 Functions: 1 11 9.1 %

          Line data    Source code
       1             : /* context.c - Context specific interface.
       2             :    Copyright (C) 2009 Free Software Foundation, Inc.
       3             : 
       4             :    This file is part of Assuan.
       5             : 
       6             :    Assuan is free software; you can redistribute it and/or modify it
       7             :    under the terms of the GNU Lesser General Public License as
       8             :    published by the Free Software Foundation; either version 2.1 of
       9             :    the License, or (at your option) any later version.
      10             : 
      11             :    Assuan is distributed in the hope that it will be useful, but
      12             :    WITHOUT ANY WARRANTY; without even the implied warranty of
      13             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14             :    Lesser General Public License for more details.
      15             : 
      16             :    You should have received a copy of the GNU Lesser General Public
      17             :    License along with this program; if not, see <http://www.gnu.org/licenses/>.
      18             :  */
      19             : 
      20             : 
      21             : #ifdef HAVE_CONFIG_H
      22             : #include <config.h>
      23             : #endif
      24             : 
      25             : #include "assuan-defs.h"
      26             : #include "debug.h"
      27             : 
      28             : 
      29             : /* Set user-data in a context.  */
      30             : void
      31           0 : assuan_set_pointer (assuan_context_t ctx, void *user_pointer)
      32             : {
      33           0 :   TRACE1 (ctx, ASSUAN_LOG_CTX, "assuan_set_pointer", ctx,
      34             :           "user_pointer=%p", user_pointer);
      35             : 
      36           0 :   if (ctx)
      37           0 :     ctx->user_pointer = user_pointer;
      38           0 : }
      39             : 
      40             : 
      41             : /* Get user-data in a context.  */
      42             : void *
      43           0 : assuan_get_pointer (assuan_context_t ctx)
      44             : {
      45             : #if 0
      46             :   /* This is called often.  */
      47             :   TRACE1 (ctx, ASSUAN_LOG_CTX, "assuan_get_pointer", ctx,
      48             :           "ctx->user_pointer=%p", ctx ? ctx->user_pointer : NULL);
      49             : #endif
      50             : 
      51           0 :   if (! ctx)
      52           0 :     return NULL;
      53             : 
      54           0 :   return ctx->user_pointer;
      55             : }
      56             : 
      57             : 
      58             : /* For context CTX, set the flag FLAG to VALUE.  Values for flags
      59             :    are usually 1 or 0 but certain flags might allow for other values;
      60             :    see the description of the type assuan_flag_t for details.  */
      61             : void
      62           0 : assuan_set_flag (assuan_context_t ctx, assuan_flag_t flag, int value)
      63             : {
      64           0 :   TRACE2 (ctx, ASSUAN_LOG_CTX, "assuan_set_flag", ctx,
      65             :           "flag=%i,value=%i", flag, value);
      66             : 
      67           0 :   if (!ctx)
      68           0 :     return;
      69             : 
      70           0 :   switch (flag)
      71             :     {
      72             :     case ASSUAN_NO_WAITPID:
      73           0 :       ctx->flags.no_waitpid = value;
      74           0 :       break;
      75             : 
      76             :     case ASSUAN_CONFIDENTIAL:
      77           0 :       ctx->flags.confidential = value;
      78           0 :       break;
      79             : 
      80             :     case ASSUAN_NO_FIXSIGNALS:
      81           0 :       ctx->flags.no_fixsignals = value;
      82           0 :       break;
      83             : 
      84             :     case ASSUAN_CONVEY_COMMENTS:
      85           0 :       ctx->flags.convey_comments = value;
      86           0 :       break;
      87             : 
      88             :     case ASSUAN_NO_LOGGING:
      89           0 :       ctx->flags.no_logging = value;
      90           0 :       break;
      91             : 
      92             :     case ASSUAN_FORCE_CLOSE:
      93           0 :       ctx->flags.force_close = 1;
      94           0 :       break;
      95             :     }
      96             : }
      97             : 
      98             : 
      99             : /* Return the VALUE of FLAG in context CTX.  */
     100             : int
     101           0 : assuan_get_flag (assuan_context_t ctx, assuan_flag_t flag)
     102             : {
     103           0 :   int res = 0;
     104           0 :   TRACE_BEG1 (ctx, ASSUAN_LOG_CTX, "assuan_get_flag", ctx,
     105             :               "flag=%i", flag);
     106             : 
     107           0 :   if (! ctx)
     108           0 :     return 0;
     109             : 
     110           0 :   switch (flag)
     111             :     {
     112             :     case ASSUAN_NO_WAITPID:
     113           0 :       res = ctx->flags.no_waitpid;
     114           0 :       break;
     115             : 
     116             :     case ASSUAN_CONFIDENTIAL:
     117           0 :       res = ctx->flags.confidential;
     118           0 :       break;
     119             : 
     120             :     case ASSUAN_NO_FIXSIGNALS:
     121           0 :       res = ctx->flags.no_fixsignals;
     122           0 :       break;
     123             : 
     124             :     case ASSUAN_CONVEY_COMMENTS:
     125           0 :       res = ctx->flags.convey_comments;
     126           0 :       break;
     127             : 
     128             :     case ASSUAN_NO_LOGGING:
     129           0 :       res = ctx->flags.no_logging;
     130           0 :       break;
     131             : 
     132             :     case ASSUAN_FORCE_CLOSE:
     133           0 :       res = ctx->flags.force_close;
     134           0 :       break;
     135             :     }
     136             : 
     137           0 :   return TRACE_SUC1 ("flag_value=%i", res);
     138             : }
     139             : 
     140             : 
     141             : /* Same as assuan_set_flag (ctx, ASSUAN_CONFIDENTIAL, 1).  */
     142             : void
     143           0 : assuan_begin_confidential (assuan_context_t ctx)
     144             : {
     145           0 :   assuan_set_flag (ctx, ASSUAN_CONFIDENTIAL, 1);
     146           0 : }
     147             : 
     148             : 
     149             : /* Same as assuan_set_flag (ctx, ASSUAN_CONFIDENTIAL, 0).  */
     150             : void
     151           0 : assuan_end_confidential (assuan_context_t ctx)
     152             : {
     153           0 :   assuan_set_flag (ctx, ASSUAN_CONFIDENTIAL, 0);
     154           0 : }
     155             : 
     156             : 
     157             : /* Set the system callbacks.  */
     158             : void
     159           0 : assuan_ctx_set_system_hooks (assuan_context_t ctx,
     160             :                              assuan_system_hooks_t system_hooks)
     161             : {
     162           0 :   TRACE2 (ctx, ASSUAN_LOG_CTX, "assuan_set_system_hooks", ctx,
     163             :           "system_hooks=%p (version %i)", system_hooks,
     164             :           system_hooks->version);
     165             : 
     166           0 :   _assuan_system_hooks_copy (&ctx->system, system_hooks);
     167           0 : }
     168             : 
     169             : 
     170             : /* Set the IO monitor function.  */
     171           0 : void assuan_set_io_monitor (assuan_context_t ctx,
     172             :                             assuan_io_monitor_t io_monitor, void *hook_data)
     173             : {
     174           0 :   TRACE2 (ctx, ASSUAN_LOG_CTX, "assuan_set_io_monitor", ctx,
     175             :           "io_monitor=%p,hook_data=%p", io_monitor, hook_data);
     176             : 
     177           0 :   if (! ctx)
     178           0 :     return;
     179             : 
     180           0 :   ctx->io_monitor = io_monitor;
     181           0 :   ctx->io_monitor_data = hook_data;
     182             : }
     183             : 
     184             : 
     185             : /* Store the error in the context so that the error sending function
     186             :    can take out a descriptive text.  Inside the assuan code, use the
     187             :    macro set_error instead of this function. */
     188             : gpg_error_t
     189           0 : assuan_set_error (assuan_context_t ctx, gpg_error_t err, const char *text)
     190             : {
     191           0 :   TRACE4 (ctx, ASSUAN_LOG_CTX, "assuan_set_error", ctx,
     192             :           "err=%i (%s,%s),text=%s", err, gpg_strsource (err),
     193             :           gpg_strerror (err), text?text:"(none)");
     194             : 
     195           0 :   ctx->err_no = err;
     196           0 :   ctx->err_str = text;
     197           0 :   return err;
     198             : }
     199             : 
     200             : 
     201             : /* Return the PID of the peer or ASSUAN_INVALID_PID if not known.
     202             :    This function works in some situations where assuan_get_ucred
     203             :    fails. */
     204             : pid_t
     205           6 : assuan_get_pid (assuan_context_t ctx)
     206             : {
     207           6 :   TRACE1 (ctx, ASSUAN_LOG_CTX, "assuan_get_pid", ctx,
     208             :           "pid=%i", ctx ? ctx->pid : -1);
     209             : 
     210           6 :   return (ctx && ctx->pid) ? ctx->pid : ASSUAN_INVALID_PID;
     211             : }
     212             : 
     213             : 
     214             : /* Return user credentials.  For getting the pid of the peer the
     215             :    assuan_get_pid is usually better suited. */
     216             : gpg_error_t
     217           0 : assuan_get_peercred (assuan_context_t ctx, assuan_peercred_t *peercred)
     218             : {
     219           0 :   TRACE (ctx, ASSUAN_LOG_CTX, "assuan_get_peercred", ctx);
     220             : 
     221           0 :   if (!ctx)
     222           0 :     return _assuan_error (ctx, GPG_ERR_ASS_INV_VALUE);
     223           0 :   if (!ctx->peercred_valid)
     224           0 :     return _assuan_error (ctx, GPG_ERR_ASS_GENERAL);
     225             : 
     226           0 :   *peercred = &ctx->peercred;
     227             : 
     228           0 :   return 0;
     229             : }

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