/* posix-util.c - Utility functions for Posix
- Copyright (C) 2001 Werner Koch (dd9jn)
- Copyright (C) 2001, 2002, 2004 g10 Code GmbH
-
- This file is part of GPGME.
-
- GPGME is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as
- published by the Free Software Foundation; either version 2.1 of
- the License, or (at your option) any later version.
-
- GPGME 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ * Copyright (C) 2001 Werner Koch (dd9jn)
+ * Copyright (C) 2001, 2002, 2004 g10 Code GmbH
+ *
+ * This file is part of GPGME.
+ *
+ * GPGME is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * GPGME 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, see <https://gnu.org/licenses/>.
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ */
#ifdef HAVE_CONFIG_H
#include <config.h>
#include <assert.h>
#include "util.h"
+#include "sys-util.h"
+#include "debug.h"
-const char *
-_gpgme_get_gpg_path (void)
+/* These variables store the malloced name of alternative default
+ binaries. The are set only once by gpgme_set_global_flag. */
+static char *default_gpg_name;
+static char *default_gpgconf_name;
+
+/* Set the default name for the gpg binary. This function may only be
+ called by gpgme_set_global_flag. Returns 0 on success. Leading
+ directories are removed from NAME. */
+int
+_gpgme_set_default_gpg_name (const char *name)
{
-#ifdef GPG_PATH
- return GPG_PATH;
-#else
- return NULL;
-#endif
+ const char *s;
+
+ s = strrchr (name, '/');
+ if (s)
+ name = s + 1;
+
+ if (!default_gpg_name)
+ default_gpg_name = strdup (name);
+ return !default_gpg_name;
}
-const char *
-_gpgme_get_gpgsm_path (void)
+/* Set the default name for the gpgconf binary. This function may
+ only be called by gpgme_set_global_flag. Returns 0 on success.
+ Leading directories are removed from NAME. */
+int
+_gpgme_set_default_gpgconf_name (const char *name)
{
-#ifdef GPGSM_PATH
- return GPGSM_PATH;
-#else
- return NULL;
-#endif
+ const char *s;
+
+ s = strrchr (name, '/');
+ if (s)
+ name = s + 1;
+
+ if (!default_gpgconf_name)
+ default_gpgconf_name = strdup (name);
+ return !default_gpgconf_name;
}
-const char *
-_gpgme_get_gpgconf_path (void)
+
+/* Dummy function - see w32-util.c for the actual code. */
+int
+_gpgme_set_override_inst_dir (const char *dir)
{
-#ifdef GPGCONF_PATH
- return GPGCONF_PATH;
-#else
- return NULL;
-#endif
+ (void)dir;
+ return 0;
}
-const char *
-_gpgme_get_g13_path (void)
+/* Find an executable program in the colon seperated paths. */
+static char *
+walk_path_str (const char *path_str, const char *pgm)
{
-#ifdef G13_PATH
- return G13_PATH;
-#else
+ const char *path, *s;
+ char *fname, *p;
+
+ fname = malloc (strlen (path_str) + 1 + strlen (pgm) + 1);
+ if (!fname)
+ return NULL;
+
+ path = path_str;
+ for (;;)
+ {
+ for (s=path, p=fname; *s && *s != ':'; s++, p++)
+ *p = *s;
+ if (p != fname && p[-1] != '/')
+ *p++ = '/';
+ strcpy (p, pgm);
+ if (!access (fname, X_OK))
+ return fname;
+ if (!*s)
+ break;
+ path = s + 1;
+ }
+
+ free (fname);
return NULL;
-#endif
}
-
-const char *
-_gpgme_get_uiserver_socket_path (void)
+/* Find an executable program PGM. */
+static char *
+find_executable (const char *pgm)
{
- static char *socket_path;
- const char *homedir;
- const char name[] = "S.uiserver";
+ const char *orig_path;
+ char *ret;
- if (socket_path)
- return socket_path;
+#ifdef FIXED_SEARCH_PATH
+ orig_path = FIXED_SEARCH_PATH;
+#else
+ orig_path = getenv ("PATH");
+ if (!orig_path)
+ orig_path = "/bin:/usr/bin";
+#endif
+ ret = walk_path_str (orig_path, pgm);
+
+ if (!ret)
+ {
+ _gpgme_debug (NULL, DEBUG_ENGINE, -1, NULL, NULL, NULL,
+ "gpgme-walk_path: '%s' not found in '%s'",
+ pgm, orig_path);
+ }
+#ifdef __APPLE__
+ /* On apple, especially when started through gpgme-json via
+ the browser interface we should look into some additional
+ fallback paths. */
+ const char *additional_path = "/usr/local/bin:/usr/local/MacGPG2/bin";
+ if (!ret)
+ {
+ ret = walk_path_str (additional_path, pgm);
+ }
+ if (!ret)
+ {
+ _gpgme_debug (NULL, DEBUG_ENGINE, -1, NULL, NULL, NULL,
+ "gpgme-walk_path: '%s' not found in '%s'",
+ pgm, additional_path);
+ }
+#endif
- homedir = _gpgme_get_default_homedir ();
- if (! homedir)
- return NULL;
+ return ret;
+}
- socket_path = malloc (strlen (homedir) + 1 + strlen (name) + 1);
- if (! socket_path)
- return NULL;
- strcpy (stpcpy (stpcpy (socket_path, homedir), "/"), name);
- return socket_path;
+/* Return the full file name of the GPG binary. This function is used
+ if gpgconf was not found and thus it can be assumed that gpg2 is
+ not installed. This function is only called by get_gpgconf_item
+ and may not be called concurrently. */
+char *
+_gpgme_get_gpg_path (void)
+{
+ return find_executable (default_gpg_name? default_gpg_name : "gpg");
}
+/* This function is only called by get_gpgconf_item and may not be
+ called concurrently. */
+char *
+_gpgme_get_gpgconf_path (void)
+{
+ return find_executable (default_gpgconf_name? default_gpgconf_name : "gpgconf");
+}
+
/* See w32-util.c */
int
_gpgme_get_conf_int (const char *key, int *value)
{
+ (void)key;
+ (void)value;
return 0;
}
-void
+void
_gpgme_allow_set_foreground_window (pid_t pid)
{
(void)pid;
/* Not needed. */
}
+
+/* See w32-util.c */
+int
+_gpgme_access (const char *path, int mode)
+{
+ return access (path, mode);
+}
projects / platform / upstream / gpgme.git / blobdiff