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ea7aba6e60
* common/w32-reg.c (read_w32_reg_string): Add arg r_hklm_fallback and change all callers. (show_configs): Indicate whether the HKLM fallback was used. * tools/gpgconf.c (show_other_registry_entries): Fix the Outlook Addin Registry key. Indicate whether the HKLM fallback was used. -- Note that this is backport from 2.2. The new support there for REG_DWORD needs to be implemented in libgpg-error, though.
123 lines
3.4 KiB
C
123 lines
3.4 KiB
C
/* w32-reg.c - MS-Windows Registry access
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* Copyright (C) 1999, 2002, 2007 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute and/or modify this
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* part of GnuPG under the terms of either
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*
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* - the GNU Lesser General Public License as published by the Free
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* Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* or
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*
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* - the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* or both in parallel, as here.
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*
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* GnuPG is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copies of the GNU General Public License
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* and the GNU Lesser General Public License along with this program;
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* if not, see <https://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#ifdef HAVE_W32_SYSTEM
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/* This module is only used in this environment */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#ifdef HAVE_WINSOCK2_H
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# include <winsock2.h>
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#endif
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#include <windows.h>
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#include "util.h"
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#include "common-defs.h"
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#include "utf8conv.h"
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#include "w32help.h"
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/* Return a string from the Win32 Registry or NULL in case of error.
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Caller must release the return value. A NULL for root is an alias
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for HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE in turn. */
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char *
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read_w32_registry_string (const char *root, const char *dir, const char *name)
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{
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return gpgrt_w32_reg_query_string (root, dir, name);
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}
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/* Compact version of read_w32_registry_string. This version expects
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* a single string as key described here using an example:
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*
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* HKCU\Software\GNU\GnuPG:HomeDir
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*
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* HKCU := the class, other supported classes are HKLM, HKCR, HKU, and
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* HKCC. If no class is given and the string thus starts with
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* a backslash HKCU with a fallback to HKLM is used.
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* Software\GNU\GnuPG := The actual key.
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* HomeDir := the name of the item. The name is optional to use the default
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* value.
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*
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* Note that the first backslash and the first colon act as delimiters.
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*
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* Returns a malloced string or NULL if not found. If R_HKLM_FALLBACK
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* is not NULL, no class was given, and the result came from HKLM,
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* true is stored there.
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*/
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char *
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read_w32_reg_string (const char *key_arg, int *r_hklm_fallback)
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{
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char *key;
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char *p1, *p2;
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char *result, *result2;
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if (r_hklm_fallback)
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*r_hklm_fallback = 0;
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if (!key_arg)
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return NULL;
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key = xtrystrdup (key_arg);
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if (!key)
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{
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log_info ("warning: malloc failed while reading registry key\n");
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return NULL;
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}
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p1 = strchr (key, '\\');
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if (!p1)
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{
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xfree (key);
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return NULL;
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}
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*p1++ = 0;
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p2 = strchr (p1, ':');
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if (p2)
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*p2++ = 0;
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result = gpgrt_w32_reg_query_string (*key? key : NULL, p1, p2);
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if (result && !*key && r_hklm_fallback)
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{
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/* No key given - see whether the result came from HKCU or HKLM. */
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result2 = gpgrt_w32_reg_query_string ("HKCU", p1, p2);
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if (result2)
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xfree (result2);
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else
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*r_hklm_fallback = 1;
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}
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xfree (key);
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return result;
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}
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#endif /*HAVE_W32_SYSTEM*/
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