2673 lines
81 KiB
C
2673 lines
81 KiB
C
/* filesystem.c
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* Filesystem utility routines
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#include "filesystem.h"
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#define WS_LOG_DOMAIN LOG_DOMAIN_WSUTIL
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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 <errno.h>
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#ifdef _WIN32
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#include <windows.h>
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#include <tchar.h>
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#include <shlobj.h>
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#include <wsutil/unicode-utils.h>
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#else /* _WIN32 */
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#ifdef __APPLE__
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#include <mach-o/dyld.h>
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#endif
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#ifdef __linux__
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#include <sys/utsname.h>
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#endif
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#ifdef __FreeBSD__
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#endif
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#ifdef HAVE_DLGET
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#include <dlfcn.h>
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#endif
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#include <pwd.h>
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#endif /* _WIN32 */
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#include <wsutil/report_message.h>
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#include <wsutil/privileges.h>
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#include <wsutil/file_util.h>
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#include <wsutil/utf8_entities.h>
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#include <wiretap/wtap.h> /* for WTAP_ERR_SHORT_WRITE */
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#define PROFILES_DIR "profiles"
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#define PLUGINS_DIR_NAME "plugins"
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#define PROFILES_INFO_NAME "profile_files.txt"
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#define _S G_DIR_SEPARATOR_S
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/*
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* Application configuration namespace. Used to construct configuration
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* paths and environment variables.
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* XXX We might want to use the term "application flavor" instead, with
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* "packet" and "log" flavors.
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*/
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enum configuration_namespace_e {
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CONFIGURATION_NAMESPACE_UNINITIALIZED,
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CONFIGURATION_NAMESPACE_WIRESHARK,
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CONFIGURATION_NAMESPACE_LOGRAY
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};
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enum configuration_namespace_e configuration_namespace = CONFIGURATION_NAMESPACE_UNINITIALIZED;
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#define CONFIGURATION_NAMESPACE_PROPER (configuration_namespace == CONFIGURATION_NAMESPACE_WIRESHARK ? "Wireshark" : "Logray")
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#define CONFIGURATION_NAMESPACE_LOWER (configuration_namespace == CONFIGURATION_NAMESPACE_WIRESHARK ? "wireshark" : "logray")
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#define CONFIGURATION_ENVIRONMENT_VARIABLE(suffix) (configuration_namespace == CONFIGURATION_NAMESPACE_WIRESHARK ? "WIRESHARK_" suffix : "LOGRAY_" suffix)
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char *persconffile_dir = NULL;
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char *datafile_dir = NULL;
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char *persdatafile_dir = NULL;
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char *persconfprofile = NULL;
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char *doc_dir = NULL;
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/* Directory from which the executable came. */
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static char *progfile_dir = NULL;
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#ifdef __MINGW64__
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static char *install_prefix = NULL;
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#endif
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static gboolean do_store_persconffiles = FALSE;
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static GHashTable *profile_files = NULL;
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/*
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* Given a pathname, return a pointer to the last pathname separator
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* character in the pathname, or NULL if the pathname contains no
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* separators.
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*/
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char *
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find_last_pathname_separator(const char *path)
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{
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char *separator;
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#ifdef _WIN32
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char c;
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/*
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* We have to scan for '\' or '/'.
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* Get to the end of the string.
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*/
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separator = strchr(path, '\0'); /* points to ending '\0' */
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while (separator > path) {
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c = *--separator;
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if (c == '\\' || c == '/')
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return separator; /* found it */
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}
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/*
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* OK, we didn't find any, so no directories - but there might
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* be a drive letter....
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*/
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return strchr(path, ':');
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#else
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separator = strrchr(path, '/');
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return separator;
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#endif
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}
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/*
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* Given a pathname, return the last component.
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*/
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const char *
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get_basename(const char *path)
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{
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const char *filename;
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ws_assert(path != NULL);
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filename = find_last_pathname_separator(path);
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if (filename == NULL) {
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/*
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* There're no directories, drive letters, etc. in the
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* name; the pathname *is* the file name.
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*/
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filename = path;
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} else {
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/*
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* Skip past the pathname or drive letter separator.
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*/
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filename++;
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}
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return filename;
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}
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/*
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* Given a pathname, return a string containing everything but the
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* last component. NOTE: this overwrites the pathname handed into
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* it....
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*/
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char *
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get_dirname(char *path)
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{
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char *separator;
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ws_assert(path != NULL);
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separator = find_last_pathname_separator(path);
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if (separator == NULL) {
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/*
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* There're no directories, drive letters, etc. in the
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* name; there is no directory path to return.
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*/
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return NULL;
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}
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/*
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* Get rid of the last pathname separator and the final file
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* name following it.
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*/
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*separator = '\0';
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/*
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* "path" now contains the pathname of the directory containing
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* the file/directory to which it referred.
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*/
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return path;
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}
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/*
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* Given a pathname, return:
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*
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* the errno, if an attempt to "stat()" the file fails;
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*
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* EISDIR, if the attempt succeeded and the file turned out
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* to be a directory;
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*
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* 0, if the attempt succeeded and the file turned out not
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* to be a directory.
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*/
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int
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test_for_directory(const char *path)
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{
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ws_statb64 statb;
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if (ws_stat64(path, &statb) < 0)
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return errno;
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if (S_ISDIR(statb.st_mode))
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return EISDIR;
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else
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return 0;
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}
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int
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test_for_fifo(const char *path)
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{
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ws_statb64 statb;
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if (ws_stat64(path, &statb) < 0)
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return errno;
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if (S_ISFIFO(statb.st_mode))
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return ESPIPE;
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else
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return 0;
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}
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#ifdef __APPLE__
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/*
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* Directory of the application bundle in which we're contained,
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* if we're contained in an application bundle. Otherwise, NULL.
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*
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* Note: Table 2-5 "Subdirectories of the Contents directory" of
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*
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* https://developer.apple.com/library/mac/documentation/CoreFoundation/Conceptual/CFBundles/BundleTypes/BundleTypes.html#//apple_ref/doc/uid/10000123i-CH101-SW1
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*
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* says that the "Frameworks" directory
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*
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* Contains any private shared libraries and frameworks used by the
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* executable. The frameworks in this directory are revision-locked
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* to the application and cannot be superseded by any other, even
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* newer, versions that may be available to the operating system. In
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* other words, the frameworks included in this directory take precedence
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* over any other similarly named frameworks found in other parts of
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* the operating system. For information on how to add private
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* frameworks to your application bundle, see Framework Programming Guide.
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*
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* so if we were to ship with any frameworks (e.g. Qt) we should
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* perhaps put them in a Frameworks directory rather than under
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* Resources.
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*
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* It also says that the "PlugIns" directory
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*
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* Contains loadable bundles that extend the basic features of your
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* application. You use this directory to include code modules that
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* must be loaded into your applicationbs process space in order to
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* be used. You would not use this directory to store standalone
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* executables.
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*
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* Our plugins are just raw .so/.dylib files; I don't know whether by
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* "bundles" they mean application bundles (i.e., directory hierarchies)
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* or just "bundles" in the Mach-O sense (which are an image type that
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* can be loaded with dlopen() but not linked as libraries; our plugins
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* are, I think, built as dylibs and can be loaded either way).
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*
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* And it says that the "SharedSupport" directory
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*
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* Contains additional non-critical resources that do not impact the
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* ability of the application to run. You might use this directory to
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* include things like document templates, clip art, and tutorials
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* that your application expects to be present but that do not affect
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* the ability of your application to run.
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*
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* I don't think I'd put the files that currently go under Resources/share
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* into that category; they're not, for example, sample Lua scripts that
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* don't actually get run by Wireshark, they're configuration/data files
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* for Wireshark whose absence might not prevent Wireshark from running
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* but that would affect how it behaves when run.
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*/
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static char *appbundle_dir;
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#endif
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/*
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* TRUE if we're running from the build directory and we aren't running
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* with special privileges.
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*/
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static gboolean running_in_build_directory_flag = FALSE;
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/*
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* Set our configuration namespace. This will be used for top-level
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* configuration directory names and environment variable prefixes.
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*/
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static void
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set_configuration_namespace(const char *namespace_name)
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{
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if (configuration_namespace != CONFIGURATION_NAMESPACE_UNINITIALIZED) {
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return;
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}
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if (!namespace_name || g_ascii_strcasecmp(namespace_name, "wireshark") == 0)
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{
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configuration_namespace = CONFIGURATION_NAMESPACE_WIRESHARK;
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}
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else if (g_ascii_strcasecmp(namespace_name, "logray") == 0)
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{
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configuration_namespace = CONFIGURATION_NAMESPACE_LOGRAY;
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}
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else
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{
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ws_error("Unknown configuration namespace %s", namespace_name);
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}
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ws_debug("Using configuration namespace %s.", CONFIGURATION_NAMESPACE_PROPER);
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}
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const char *
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get_configuration_namespace(void)
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{
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return CONFIGURATION_NAMESPACE_PROPER;
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}
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bool is_packet_configuration_namespace(void)
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{
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return configuration_namespace != CONFIGURATION_NAMESPACE_LOGRAY;
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}
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#ifndef _WIN32
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/*
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* Get the pathname of the executable using various platform-
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* dependent mechanisms for various UN*Xes.
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*
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* These calls all should return something independent of the argv[0]
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* passed to the program, so it shouldn't be fooled by an argv[0]
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* that doesn't match the executable path.
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*
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* We don't use dladdr() because:
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*
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* not all UN*Xes necessarily have dladdr();
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*
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* those that do have it don't necessarily have dladdr(main)
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* return information about the executable image;
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*
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* those that do have a dladdr() where dladdr(main) returns
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* information about the executable image don't necessarily
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* have a mechanism by which the executable image can get
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* its own path from the kernel (either by a call or by it
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* being handed to it along with argv[] and the environment),
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* so they just fall back on getting it from argv[0], which we
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* already have code to do;
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*
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* those that do have such a mechanism don't necessarily use
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* it in dladdr(), and, instead, just fall back on getting it
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* from argv[0];
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*
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* so the only places where it's worth bothering to use dladdr()
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* are platforms where dladdr(main) return information about the
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* executable image by getting it from the kernel rather than
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* by looking at argv[0], and where we can't get at that information
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* ourselves, and we haven't seen any indication that there are any
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* such platforms.
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*
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* In particular, some dynamic linkers supply a dladdr() such that
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* dladdr(main) just returns something derived from argv[0], so
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* just using dladdr(main) is the wrong thing to do if there's
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* another mechanism that can get you a more reliable version of
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* the executable path.
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*
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* So, on platforms where we know of a mechanism to get that path
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* (where getting that path doesn't involve argv[0], which is not
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* guaranteed to reflect the path to the binary), this routine
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* attempsts to use that platform's mechanism. On other platforms,
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* it just returns NULL.
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*
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* This is not guaranteed to return an absolute path; if it doesn't,
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* our caller must prepend the current directory if it's a path.
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*
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* This is not guaranteed to return the "real path"; it might return
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* something with symbolic links in the path. Our caller must
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* use realpath() if they want the real thing, but that's also true of
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* something obtained by looking at argv[0].
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*/
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#define xx_free free /* hack so checkAPIs doesn't complain */
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static const char *
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get_current_executable_path(void)
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{
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#if defined(__APPLE__)
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static char *executable_path;
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uint32_t path_buf_size;
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if (executable_path) {
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return executable_path;
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}
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path_buf_size = PATH_MAX;
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executable_path = (char *)g_malloc(path_buf_size);
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if (_NSGetExecutablePath(executable_path, &path_buf_size) == -1) {
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executable_path = (char *)g_realloc(executable_path, path_buf_size);
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if (_NSGetExecutablePath(executable_path, &path_buf_size) == -1)
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return NULL;
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}
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/*
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* Resolve our path so that it's possible to symlink the executables
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* in our application bundle.
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*/
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char *rp_execpath = realpath(executable_path, NULL);
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if (rp_execpath) {
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g_free(executable_path);
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executable_path = g_strdup(rp_execpath);
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xx_free(rp_execpath);
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}
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return executable_path;
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#elif defined(__linux__)
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/*
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* In older versions of GNU libc's dynamic linker, as used on Linux,
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* dladdr(main) supplies a path based on argv[0], so we use
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* /proc/self/exe instead; there are Linux distributions with
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* kernels that support /proc/self/exe and those older versions
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* of the dynamic linker, and this will get a better answer on
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* those versions.
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*
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* It only works on Linux 2.2 or later, so we just give up on
|
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* earlier versions.
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*
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* XXX - are there OS versions that support "exe" but not "self"?
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*/
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struct utsname name;
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static char executable_path[PATH_MAX + 1];
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ssize_t r;
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if (uname(&name) == -1)
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return NULL;
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if (strncmp(name.release, "1.", 2) == 0)
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return NULL; /* Linux 1.x */
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if (strcmp(name.release, "2.0") == 0 ||
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strncmp(name.release, "2.0.", 4) == 0 ||
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strcmp(name.release, "2.1") == 0 ||
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strncmp(name.release, "2.1.", 4) == 0)
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return NULL; /* Linux 2.0.x or 2.1.x */
|
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if ((r = readlink("/proc/self/exe", executable_path, PATH_MAX)) == -1)
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return NULL;
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executable_path[r] = '\0';
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return executable_path;
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#elif defined(__FreeBSD__) && defined(KERN_PROC_PATHNAME)
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/*
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* In older versions of FreeBSD's dynamic linker, dladdr(main)
|
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* supplies a path based on argv[0], so we use the KERN_PROC_PATHNAME
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* sysctl instead; there are, I think, versions of FreeBSD
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* that support the sysctl that have and those older versions
|
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* of the dynamic linker, and this will get a better answer on
|
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* those versions.
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*/
|
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int mib[4];
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char *executable_path;
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size_t path_buf_size;
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|
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mib[0] = CTL_KERN;
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mib[1] = KERN_PROC;
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mib[2] = KERN_PROC_PATHNAME;
|
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mib[3] = -1;
|
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path_buf_size = PATH_MAX;
|
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executable_path = (char *)g_malloc(path_buf_size);
|
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if (sysctl(mib, 4, executable_path, &path_buf_size, NULL, 0) == -1) {
|
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if (errno != ENOMEM)
|
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return NULL;
|
|
executable_path = (char *)g_realloc(executable_path, path_buf_size);
|
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if (sysctl(mib, 4, executable_path, &path_buf_size, NULL, 0) == -1)
|
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return NULL;
|
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}
|
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return executable_path;
|
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#elif defined(__NetBSD__)
|
|
/*
|
|
* In all versions of NetBSD's dynamic linker as of 2013-08-12,
|
|
* dladdr(main) supplies a path based on argv[0], so we use
|
|
* /proc/curproc/exe instead.
|
|
*
|
|
* XXX - are there OS versions that support "exe" but not "curproc"
|
|
* or "self"? Are there any that support "self" but not "curproc"?
|
|
*/
|
|
static char executable_path[PATH_MAX + 1];
|
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ssize_t r;
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|
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if ((r = readlink("/proc/curproc/exe", executable_path, PATH_MAX)) == -1)
|
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return NULL;
|
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executable_path[r] = '\0';
|
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return executable_path;
|
|
#elif defined(__DragonFly__)
|
|
/*
|
|
* In older versions of DragonFly BSD's dynamic linker, dladdr(main)
|
|
* supplies a path based on argv[0], so we use /proc/curproc/file
|
|
* instead; it appears to be supported by all versions of DragonFly
|
|
* BSD.
|
|
*/
|
|
static char executable_path[PATH_MAX + 1];
|
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ssize_t r;
|
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|
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if ((r = readlink("/proc/curproc/file", executable_path, PATH_MAX)) == -1)
|
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return NULL;
|
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executable_path[r] = '\0';
|
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return executable_path;
|
|
#elif defined(HAVE_GETEXECNAME)
|
|
/*
|
|
* Solaris, with getexecname().
|
|
* It appears that getexecname() dates back to at least Solaris 8,
|
|
* but /proc/{pid}/path is first documented in the Solaris 10 documentation,
|
|
* so we use getexecname() if available, rather than /proc/self/path/a.out
|
|
* (which isn't documented, but appears to be a symlink to the
|
|
* executable image file).
|
|
*/
|
|
return getexecname();
|
|
#elif defined(HAVE_DLGET)
|
|
/*
|
|
* HP-UX 11, with dlget(); use dlget() and dlgetname().
|
|
* See
|
|
*
|
|
* https://web.archive.org/web/20081025174755/http://h21007.www2.hp.com/portal/site/dspp/menuitem.863c3e4cbcdc3f3515b49c108973a801?ciid=88086d6e1de021106d6e1de02110275d6e10RCRD#two
|
|
*/
|
|
struct load_module_desc desc;
|
|
|
|
if (dlget(-2, &desc, sizeof(desc)) != NULL)
|
|
return dlgetname(&desc, sizeof(desc), NULL, NULL, NULL);
|
|
else
|
|
return NULL;
|
|
#else
|
|
/* Fill in your favorite UN*X's code here, if there is something */
|
|
return NULL;
|
|
#endif
|
|
}
|
|
#endif /* _WIN32 */
|
|
|
|
static void trim_progfile_dir(void)
|
|
{
|
|
char *progfile_last_dir = find_last_pathname_separator(progfile_dir);
|
|
|
|
if (! (progfile_last_dir && strncmp(progfile_last_dir + 1, "extcap", sizeof("extcap")) == 0)) {
|
|
return;
|
|
}
|
|
|
|
*progfile_last_dir = '\0';
|
|
char *extcap_progfile_dir = progfile_dir;
|
|
progfile_dir = g_strdup(extcap_progfile_dir);
|
|
g_free(extcap_progfile_dir);
|
|
}
|
|
|
|
#ifdef __MINGW64__
|
|
static char *
|
|
trim_last_dir_from_path(const char *_path)
|
|
{
|
|
char *path = ws_strdup(_path);
|
|
char *last_dir = find_last_pathname_separator(path);
|
|
if (last_dir) {
|
|
*last_dir = '\0';
|
|
}
|
|
return path;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Construct the path name of a non-extcap Wireshark executable file,
|
|
* given the program name. The executable name doesn't include ".exe";
|
|
* append it on Windows, so that callers don't have to worry about that.
|
|
*
|
|
* This presumes that all non-extcap executables are in the same directory.
|
|
*
|
|
* The returned file name was g_malloc()'d so it must be g_free()d when the
|
|
* caller is done with it.
|
|
*/
|
|
char *
|
|
get_executable_path(const char *program_name)
|
|
{
|
|
/*
|
|
* Fail if we don't know what directory contains the executables.
|
|
*/
|
|
if (progfile_dir == NULL)
|
|
return NULL;
|
|
|
|
#ifdef _WIN32
|
|
return ws_strdup_printf("%s\\%s.exe", progfile_dir, program_name);
|
|
#else
|
|
return ws_strdup_printf("%s/%s", progfile_dir, program_name);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Get the pathname of the directory from which the executable came,
|
|
* and save it for future use. Returns NULL on success, and a
|
|
* g_mallocated string containing an error on failure.
|
|
*/
|
|
#ifdef _WIN32
|
|
char *
|
|
configuration_init_w32(const char* arg0 _U_)
|
|
{
|
|
TCHAR prog_pathname_w[_MAX_PATH+2];
|
|
char *prog_pathname;
|
|
DWORD error;
|
|
TCHAR *msg_w;
|
|
guchar *msg;
|
|
size_t msglen;
|
|
|
|
/*
|
|
* Attempt to get the full pathname of the currently running
|
|
* program.
|
|
*/
|
|
if (GetModuleFileName(NULL, prog_pathname_w, G_N_ELEMENTS(prog_pathname_w)) != 0 && GetLastError() != ERROR_INSUFFICIENT_BUFFER) {
|
|
/*
|
|
* XXX - Should we use g_utf16_to_utf8()?
|
|
*/
|
|
prog_pathname = utf_16to8(prog_pathname_w);
|
|
/*
|
|
* We got it; strip off the last component, which would be
|
|
* the file name of the executable, giving us the pathname
|
|
* of the directory where the executable resides.
|
|
*/
|
|
progfile_dir = g_path_get_dirname(prog_pathname);
|
|
if (progfile_dir != NULL) {
|
|
trim_progfile_dir();
|
|
/* we succeeded */
|
|
} else {
|
|
/*
|
|
* OK, no. What do we do now?
|
|
*/
|
|
return ws_strdup_printf("No \\ in executable pathname \"%s\"",
|
|
prog_pathname);
|
|
}
|
|
} else {
|
|
/*
|
|
* Oh, well. Return an indication of the error.
|
|
*/
|
|
error = GetLastError();
|
|
if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS,
|
|
NULL, error, 0, (LPTSTR) &msg_w, 0, NULL) == 0) {
|
|
/*
|
|
* Gak. We can't format the message.
|
|
*/
|
|
return ws_strdup_printf("GetModuleFileName failed: %lu (FormatMessage failed: %lu)",
|
|
error, GetLastError());
|
|
}
|
|
msg = utf_16to8(msg_w);
|
|
LocalFree(msg_w);
|
|
/*
|
|
* "FormatMessage()" "helpfully" sticks CR/LF at the
|
|
* end of the message. Get rid of it.
|
|
*/
|
|
msglen = strlen(msg);
|
|
if (msglen >= 2) {
|
|
msg[msglen - 1] = '\0';
|
|
msg[msglen - 2] = '\0';
|
|
}
|
|
return ws_strdup_printf("GetModuleFileName failed: %s (%lu)",
|
|
msg, error);
|
|
}
|
|
|
|
#ifdef __MINGW64__
|
|
/*
|
|
* We already have the program_dir. Find the installation prefix.
|
|
* This is one level up from the bin_dir. If the program_dir does
|
|
* not end with "bin" then assume we are running in the build directory
|
|
* and the "installation prefix" (staging directory) is the same as
|
|
* the program_dir.
|
|
*/
|
|
if (g_str_has_suffix(progfile_dir, _S"bin")) {
|
|
install_prefix = trim_last_dir_from_path(progfile_dir);
|
|
}
|
|
else {
|
|
install_prefix = g_strdup(progfile_dir);
|
|
running_in_build_directory_flag = TRUE;
|
|
}
|
|
#endif /* __MINGW64__ */
|
|
|
|
return NULL;
|
|
}
|
|
|
|
#else /* !_WIN32 */
|
|
|
|
char *
|
|
configuration_init_posix(const char* arg0)
|
|
{
|
|
const char *execname;
|
|
char *prog_pathname;
|
|
char *curdir;
|
|
long path_max;
|
|
const char *pathstr;
|
|
const char *path_start, *path_end;
|
|
size_t path_component_len, path_len;
|
|
char *retstr;
|
|
char *path;
|
|
char *dir_end;
|
|
|
|
/*
|
|
* Check whether XXX_RUN_FROM_BUILD_DIRECTORY is set in the
|
|
* environment; if so, set running_in_build_directory_flag if we
|
|
* weren't started with special privileges. (If we were started
|
|
* with special privileges, it's not safe to allow the user to point
|
|
* us to some other directory; running_in_build_directory_flag, when
|
|
* set, causes us to look for plugins and the like in the build
|
|
* directory.)
|
|
*/
|
|
const char *run_from_envar = CONFIGURATION_ENVIRONMENT_VARIABLE("RUN_FROM_BUILD_DIRECTORY");
|
|
if (g_getenv(run_from_envar) != NULL
|
|
&& !started_with_special_privs()) {
|
|
running_in_build_directory_flag = TRUE;
|
|
}
|
|
|
|
execname = get_current_executable_path();
|
|
if (execname == NULL) {
|
|
/*
|
|
* OK, guess based on argv[0].
|
|
*/
|
|
execname = arg0;
|
|
}
|
|
|
|
/*
|
|
* Try to figure out the directory in which the currently running
|
|
* program resides, given something purporting to be the executable
|
|
* name (from an OS mechanism or from the argv[0] it was started with).
|
|
* That might be the absolute path of the program, or a path relative
|
|
* to the current directory of the process that started it, or
|
|
* just a name for the program if it was started from the command
|
|
* line and was searched for in $PATH. It's not guaranteed to be
|
|
* any of those, however, so there are no guarantees....
|
|
*/
|
|
if (execname[0] == '/') {
|
|
/*
|
|
* It's an absolute path.
|
|
*/
|
|
prog_pathname = g_strdup(execname);
|
|
} else if (strchr(execname, '/') != NULL) {
|
|
/*
|
|
* It's a relative path, with a directory in it.
|
|
* Get the current directory, and combine it
|
|
* with that directory.
|
|
*/
|
|
path_max = pathconf(".", _PC_PATH_MAX);
|
|
if (path_max == -1) {
|
|
/*
|
|
* We have no idea how big a buffer to
|
|
* allocate for the current directory.
|
|
*/
|
|
return ws_strdup_printf("pathconf failed: %s\n",
|
|
g_strerror(errno));
|
|
}
|
|
curdir = (char *)g_malloc(path_max);
|
|
if (getcwd(curdir, path_max) == NULL) {
|
|
/*
|
|
* It failed - give up, and just stick
|
|
* with DATA_DIR.
|
|
*/
|
|
g_free(curdir);
|
|
return ws_strdup_printf("getcwd failed: %s\n",
|
|
g_strerror(errno));
|
|
}
|
|
path = ws_strdup_printf("%s/%s", curdir, execname);
|
|
g_free(curdir);
|
|
prog_pathname = path;
|
|
} else {
|
|
/*
|
|
* It's just a file name.
|
|
* Search the path for a file with that name
|
|
* that's executable.
|
|
*/
|
|
prog_pathname = NULL; /* haven't found it yet */
|
|
pathstr = g_getenv("PATH");
|
|
path_start = pathstr;
|
|
if (path_start != NULL) {
|
|
while (*path_start != '\0') {
|
|
path_end = strchr(path_start, ':');
|
|
if (path_end == NULL)
|
|
path_end = path_start + strlen(path_start);
|
|
path_component_len = path_end - path_start;
|
|
path_len = path_component_len + 1
|
|
+ strlen(execname) + 1;
|
|
path = (char *)g_malloc(path_len);
|
|
memcpy(path, path_start, path_component_len);
|
|
path[path_component_len] = '\0';
|
|
(void) g_strlcat(path, "/", path_len);
|
|
(void) g_strlcat(path, execname, path_len);
|
|
if (access(path, X_OK) == 0) {
|
|
/*
|
|
* Found it!
|
|
*/
|
|
prog_pathname = path;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* That's not it. If there are more
|
|
* path components to test, try them.
|
|
*/
|
|
if (*path_end == ':')
|
|
path_end++;
|
|
path_start = path_end;
|
|
g_free(path);
|
|
}
|
|
if (prog_pathname == NULL) {
|
|
/*
|
|
* Program not found in path.
|
|
*/
|
|
return ws_strdup_printf("\"%s\" not found in \"%s\"",
|
|
execname, pathstr);
|
|
}
|
|
} else {
|
|
/*
|
|
* PATH isn't set.
|
|
* XXX - should we pick a default?
|
|
*/
|
|
return g_strdup("PATH isn't set");
|
|
}
|
|
}
|
|
|
|
/*
|
|
* OK, we have what we think is the pathname
|
|
* of the program.
|
|
*
|
|
* First, find the last "/" in the directory,
|
|
* as that marks the end of the directory pathname.
|
|
*/
|
|
dir_end = strrchr(prog_pathname, '/');
|
|
if (dir_end != NULL) {
|
|
/*
|
|
* Found it. Strip off the last component,
|
|
* as that's the path of the program.
|
|
*/
|
|
*dir_end = '\0';
|
|
|
|
/*
|
|
* Is there a "/run" at the end?
|
|
*/
|
|
dir_end = strrchr(prog_pathname, '/');
|
|
if (dir_end != NULL) {
|
|
if (!started_with_special_privs()) {
|
|
/*
|
|
* Check for the CMake output directory. As people may name
|
|
* their directories "run" (really?), also check for the
|
|
* CMakeCache.txt file before assuming a CMake output dir.
|
|
*/
|
|
if (strcmp(dir_end, "/run") == 0) {
|
|
gchar *cmake_file;
|
|
cmake_file = ws_strdup_printf("%.*s/CMakeCache.txt",
|
|
(int)(dir_end - prog_pathname),
|
|
prog_pathname);
|
|
if (file_exists(cmake_file))
|
|
running_in_build_directory_flag = TRUE;
|
|
g_free(cmake_file);
|
|
}
|
|
#ifdef __APPLE__
|
|
{
|
|
/*
|
|
* Scan up the path looking for a component
|
|
* named "Contents". If we find it, we assume
|
|
* we're in a bundle, and that the top-level
|
|
* directory of the bundle is the one containing
|
|
* "Contents".
|
|
*
|
|
* Not all executables are in the Contents/MacOS
|
|
* directory, so we can't just check for those
|
|
* in the path and strip them off.
|
|
*
|
|
* XXX - should we assume that it's either
|
|
* Contents/MacOS or Resources/bin?
|
|
*/
|
|
char *component_end, *p;
|
|
|
|
component_end = strchr(prog_pathname, '\0');
|
|
p = component_end;
|
|
for (;;) {
|
|
while (p >= prog_pathname && *p != '/')
|
|
p--;
|
|
if (p == prog_pathname) {
|
|
/*
|
|
* We're looking at the first component of
|
|
* the pathname now, so we're definitely
|
|
* not in a bundle, even if we're in
|
|
* "/Contents".
|
|
*/
|
|
break;
|
|
}
|
|
if (strncmp(p, "/Contents", component_end - p) == 0) {
|
|
/* Found it. */
|
|
appbundle_dir = (char *)g_malloc(p - prog_pathname + 1);
|
|
memcpy(appbundle_dir, prog_pathname, p - prog_pathname);
|
|
appbundle_dir[p - prog_pathname] = '\0';
|
|
break;
|
|
}
|
|
component_end = p;
|
|
p--;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
/*
|
|
* OK, we have the path we want.
|
|
*/
|
|
progfile_dir = prog_pathname;
|
|
trim_progfile_dir();
|
|
return NULL;
|
|
} else {
|
|
/*
|
|
* This "shouldn't happen"; we apparently
|
|
* have no "/" in the pathname.
|
|
* Just free up prog_pathname.
|
|
*/
|
|
retstr = ws_strdup_printf("No / found in \"%s\"", prog_pathname);
|
|
g_free(prog_pathname);
|
|
return retstr;
|
|
}
|
|
}
|
|
#endif /* ?_WIN32 */
|
|
|
|
char *
|
|
configuration_init(const char* arg0, const char *namespace_name)
|
|
{
|
|
set_configuration_namespace(namespace_name);
|
|
|
|
#ifdef _WIN32
|
|
return configuration_init_w32(arg0);
|
|
#else
|
|
return configuration_init_posix(arg0);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Get the directory in which the program resides.
|
|
*/
|
|
const char *
|
|
get_progfile_dir(void)
|
|
{
|
|
return progfile_dir;
|
|
}
|
|
|
|
/*
|
|
* Get the directory in which the global configuration and data files are
|
|
* stored.
|
|
*
|
|
* On Windows, we use the directory in which the executable for this
|
|
* process resides.
|
|
*
|
|
* On macOS (when executed from an app bundle), use a directory within
|
|
* that app bundle.
|
|
*
|
|
* Otherwise, if the program was executed from the build directory, use the
|
|
* directory in which the executable for this process resides. In all other
|
|
* cases, use the DATA_DIR value that was set at compile time.
|
|
*
|
|
* XXX - if we ever make libwireshark a real library, used by multiple
|
|
* applications (more than just TShark and versions of Wireshark with
|
|
* various UIs), should the configuration files belong to the library
|
|
* (and be shared by all those applications) or to the applications?
|
|
*
|
|
* If they belong to the library, that could be done on UNIX by the
|
|
* configure script, but it's trickier on Windows, as you can't just
|
|
* use the pathname of the executable.
|
|
*
|
|
* If they belong to the application, that could be done on Windows
|
|
* by using the pathname of the executable, but we'd have to have it
|
|
* passed in as an argument, in some call, on UNIX.
|
|
*
|
|
* Note that some of those configuration files might be used by code in
|
|
* libwireshark, some of them might be used by dissectors (would they
|
|
* belong to libwireshark, the application, or a separate library?),
|
|
* and some of them might be used by other code (the Wireshark preferences
|
|
* file includes resolver preferences that control the behavior of code
|
|
* in libwireshark, dissector preferences, and UI preferences, for
|
|
* example).
|
|
*/
|
|
const char *
|
|
get_datafile_dir(void)
|
|
{
|
|
if (datafile_dir != NULL)
|
|
return datafile_dir;
|
|
|
|
#if defined(__MINGW64__)
|
|
if (running_in_build_directory_flag) {
|
|
datafile_dir = g_strdup(install_prefix);
|
|
} else {
|
|
datafile_dir = g_build_filename(install_prefix, DATA_DIR, (gchar *)NULL);
|
|
}
|
|
#elif defined(_WIN32)
|
|
/*
|
|
* Do we have the pathname of the program? If so, assume we're
|
|
* running an installed version of the program. If we fail,
|
|
* we don't change "datafile_dir", and thus end up using the
|
|
* default.
|
|
*
|
|
* XXX - does NSIS put the installation directory into
|
|
* "\HKEY_LOCAL_MACHINE\SOFTWARE\Wireshark\InstallDir"?
|
|
* If so, perhaps we should read that from the registry,
|
|
* instead.
|
|
*/
|
|
if (progfile_dir != NULL) {
|
|
/*
|
|
* Yes, we do; use that.
|
|
*/
|
|
datafile_dir = g_strdup(progfile_dir);
|
|
} else {
|
|
/*
|
|
* No, we don't.
|
|
* Fall back on the default installation directory.
|
|
*/
|
|
datafile_dir = g_strdup("C:\\Program Files\\Wireshark\\");
|
|
}
|
|
#else
|
|
|
|
const char *data_dir_envar = CONFIGURATION_ENVIRONMENT_VARIABLE("DATA_DIR");
|
|
if (g_getenv(data_dir_envar) && !started_with_special_privs()) {
|
|
/*
|
|
* The user specified a different directory for data files
|
|
* and we aren't running with special privileges.
|
|
* XXX - We might be able to dispense with the priv check
|
|
*/
|
|
datafile_dir = g_strdup(g_getenv(data_dir_envar));
|
|
}
|
|
#ifdef __APPLE__
|
|
/*
|
|
* If we're running from an app bundle and weren't started
|
|
* with special privileges, use the Contents/Resources/share/wireshark
|
|
* subdirectory of the app bundle.
|
|
*
|
|
* (appbundle_dir is not set to a non-null value if we're
|
|
* started with special privileges, so we need only check
|
|
* it; we don't need to call started_with_special_privs().)
|
|
*/
|
|
else if (appbundle_dir != NULL) {
|
|
datafile_dir = ws_strdup_printf("%s/Contents/Resources/share/%s",
|
|
appbundle_dir, CONFIGURATION_NAMESPACE_LOWER);
|
|
}
|
|
#endif
|
|
else if (running_in_build_directory_flag && progfile_dir != NULL) {
|
|
/*
|
|
* We're (probably) being run from the build directory and
|
|
* weren't started with special privileges.
|
|
*
|
|
* (running_in_build_directory_flag is never set to TRUE
|
|
* if we're started with special privileges, so we need
|
|
* only check it; we don't need to call started_with_special_privs().)
|
|
*
|
|
* Data files (console.lua, radius/, etc.) are copied to the build
|
|
* directory during the build which also contains executables. A special
|
|
* exception is macOS (when built with an app bundle).
|
|
*/
|
|
datafile_dir = g_strdup(progfile_dir);
|
|
} else {
|
|
/*
|
|
* XXX We might want want to make this relative to progfile_dir, which would
|
|
* allow installation into arbitrary directories and provide better AppImage
|
|
* support.
|
|
*/
|
|
datafile_dir = g_strdup(DATA_DIR);
|
|
}
|
|
#endif
|
|
return datafile_dir;
|
|
}
|
|
|
|
const char *
|
|
get_doc_dir(void)
|
|
{
|
|
if (doc_dir != NULL)
|
|
return doc_dir;
|
|
|
|
#if defined(__MINGW64__)
|
|
if (running_in_build_directory_flag) {
|
|
doc_dir = g_strdup(install_prefix);
|
|
} else {
|
|
doc_dir = g_build_filename(install_prefix, DOC_DIR, (gchar *)NULL);
|
|
}
|
|
#elif defined(_WIN32)
|
|
if (progfile_dir != NULL) {
|
|
doc_dir = g_strdup(progfile_dir);
|
|
} else {
|
|
/* Fall back on the default installation directory. */
|
|
doc_dir = g_strdup("C:\\Program Files\\Wireshark\\");
|
|
}
|
|
#else
|
|
|
|
/* No environment variable for this. */
|
|
if (false) {
|
|
;
|
|
}
|
|
#ifdef __APPLE__
|
|
/*
|
|
* If we're running from an app bundle and weren't started
|
|
* with special privileges, use the Contents/Resources/share/wireshark
|
|
* subdirectory of the app bundle.
|
|
*
|
|
* (appbundle_dir is not set to a non-null value if we're
|
|
* started with special privileges, so we need only check
|
|
* it; we don't need to call started_with_special_privs().)
|
|
*/
|
|
else if (appbundle_dir != NULL) {
|
|
doc_dir = ws_strdup_printf("%s/Contents/Resources/%s",
|
|
appbundle_dir, DOC_DIR);
|
|
}
|
|
#endif
|
|
else if (running_in_build_directory_flag && progfile_dir != NULL) {
|
|
/*
|
|
* We're (probably) being run from the build directory and
|
|
* weren't started with special privileges.
|
|
*/
|
|
doc_dir = g_strdup(progfile_dir);
|
|
} else {
|
|
doc_dir = g_strdup(DOC_DIR);
|
|
}
|
|
#endif
|
|
return doc_dir;
|
|
}
|
|
|
|
/*
|
|
* Find the directory where the plugins are stored.
|
|
*
|
|
* On Windows, we use the plugin\{VERSION} subdirectory of the datafile
|
|
* directory, where {VERSION} is the version number of this version of
|
|
* Wireshark.
|
|
*
|
|
* On UN*X:
|
|
*
|
|
* if we appear to be run from the build directory, we use the
|
|
* "plugin" subdirectory of the datafile directory;
|
|
*
|
|
* otherwise, if the WIRESHARK_PLUGIN_DIR environment variable is
|
|
* set and we aren't running with special privileges, we use the
|
|
* value of that environment variable;
|
|
*
|
|
* otherwise, if we're running from an app bundle in macOS, we
|
|
* use the Contents/PlugIns/wireshark subdirectory of the app bundle;
|
|
*
|
|
* otherwise, we use the PLUGIN_DIR value supplied by the
|
|
* configure script.
|
|
*/
|
|
static char *plugin_dir = NULL;
|
|
static char *plugin_dir_with_version = NULL;
|
|
static char *plugin_pers_dir = NULL;
|
|
static char *plugin_pers_dir_with_version = NULL;
|
|
|
|
static void
|
|
init_plugin_dir(void)
|
|
{
|
|
#if defined(HAVE_PLUGINS) || defined(HAVE_LUA)
|
|
#if defined(__MINGW64__)
|
|
if (running_in_build_directory_flag) {
|
|
plugin_dir = g_build_filename(install_prefix, "plugins", (gchar *)NULL);
|
|
} else {
|
|
plugin_dir = g_build_filename(install_prefix, PLUGIN_DIR, (gchar *)NULL);
|
|
}
|
|
#elif defined(_WIN32)
|
|
/*
|
|
* On Windows, the data file directory is the installation
|
|
* directory; the plugins are stored under it.
|
|
*
|
|
* Assume we're running the installed version of Wireshark;
|
|
* on Windows, the data file directory is the directory
|
|
* in which the Wireshark binary resides.
|
|
*/
|
|
plugin_dir = g_build_filename(get_datafile_dir(), "plugins", (gchar *)NULL);
|
|
|
|
/*
|
|
* Make sure that pathname refers to a directory.
|
|
*/
|
|
if (test_for_directory(plugin_dir) != EISDIR) {
|
|
/*
|
|
* Either it doesn't refer to a directory or it
|
|
* refers to something that doesn't exist.
|
|
*
|
|
* Assume that means we're running a version of
|
|
* Wireshark we've built in a build directory,
|
|
* in which case {datafile dir}\plugins is the
|
|
* top-level plugins source directory, and use
|
|
* that directory and set the "we're running in
|
|
* a build directory" flag, so the plugin
|
|
* scanner will check all subdirectories of that
|
|
* directory for plugins.
|
|
*/
|
|
g_free(plugin_dir);
|
|
plugin_dir = g_build_filename(get_datafile_dir(), "plugins", (gchar *)NULL);
|
|
running_in_build_directory_flag = TRUE;
|
|
}
|
|
#else
|
|
if (running_in_build_directory_flag) {
|
|
/*
|
|
* We're (probably) being run from the build directory and
|
|
* weren't started with special privileges, so we'll use
|
|
* the "plugins" subdirectory of the directory where the program
|
|
* we're running is (that's the build directory).
|
|
*/
|
|
plugin_dir = g_build_filename(get_progfile_dir(), "plugins", (gchar *)NULL);
|
|
} else {
|
|
const char *plugin_dir_envar = CONFIGURATION_ENVIRONMENT_VARIABLE("PLUGIN_DIR");
|
|
if (g_getenv(plugin_dir_envar) && !started_with_special_privs()) {
|
|
/*
|
|
* The user specified a different directory for plugins
|
|
* and we aren't running with special privileges.
|
|
*/
|
|
plugin_dir = g_strdup(g_getenv(plugin_dir_envar));
|
|
}
|
|
#ifdef __APPLE__
|
|
/*
|
|
* If we're running from an app bundle and weren't started
|
|
* with special privileges, use the Contents/PlugIns/wireshark
|
|
* subdirectory of the app bundle.
|
|
*
|
|
* (appbundle_dir is not set to a non-null value if we're
|
|
* started with special privileges, so we need only check
|
|
* it; we don't need to call started_with_special_privs().)
|
|
*/
|
|
else if (appbundle_dir != NULL) {
|
|
plugin_dir = g_build_filename(appbundle_dir, "Contents/PlugIns",
|
|
CONFIGURATION_NAMESPACE_LOWER, (gchar *)NULL);
|
|
}
|
|
#endif
|
|
else {
|
|
/*
|
|
* XXX We might want want to make this relative to progfile_dir, which would
|
|
* allow installation into arbitrary directories and provide better AppImage
|
|
* support.
|
|
*/
|
|
plugin_dir = g_strdup(PLUGIN_DIR);
|
|
}
|
|
}
|
|
#endif
|
|
#endif /* defined(HAVE_PLUGINS) || defined(HAVE_LUA) */
|
|
}
|
|
|
|
static void
|
|
init_plugin_pers_dir(void)
|
|
{
|
|
#if defined(HAVE_PLUGINS) || defined(HAVE_LUA)
|
|
#ifdef _WIN32
|
|
plugin_pers_dir = get_persconffile_path(PLUGINS_DIR_NAME, FALSE);
|
|
#else
|
|
plugin_pers_dir = g_build_filename(g_get_home_dir(), ".local/lib",
|
|
CONFIGURATION_NAMESPACE_LOWER, PLUGINS_DIR_NAME, (gchar *)NULL);
|
|
#endif
|
|
#endif /* defined(HAVE_PLUGINS) || defined(HAVE_LUA) */
|
|
}
|
|
|
|
/*
|
|
* Get the directory in which the plugins are stored.
|
|
*/
|
|
const char *
|
|
get_plugins_dir(void)
|
|
{
|
|
if (!plugin_dir)
|
|
init_plugin_dir();
|
|
return plugin_dir;
|
|
}
|
|
|
|
const char *
|
|
get_plugins_dir_with_version(void)
|
|
{
|
|
if (!plugin_dir)
|
|
init_plugin_dir();
|
|
if (plugin_dir && !plugin_dir_with_version)
|
|
plugin_dir_with_version = g_build_filename(plugin_dir, PLUGIN_PATH_ID, (gchar *)NULL);
|
|
return plugin_dir_with_version;
|
|
}
|
|
|
|
/* Get the personal plugin dir */
|
|
const char *
|
|
get_plugins_pers_dir(void)
|
|
{
|
|
if (!plugin_pers_dir)
|
|
init_plugin_pers_dir();
|
|
return plugin_pers_dir;
|
|
}
|
|
|
|
const char *
|
|
get_plugins_pers_dir_with_version(void)
|
|
{
|
|
if (!plugin_pers_dir)
|
|
init_plugin_pers_dir();
|
|
if (plugin_pers_dir && !plugin_pers_dir_with_version)
|
|
plugin_pers_dir_with_version = g_build_filename(plugin_pers_dir, PLUGIN_PATH_ID, (gchar *)NULL);
|
|
return plugin_pers_dir_with_version;
|
|
}
|
|
|
|
/*
|
|
* Find the directory where the extcap hooks are stored.
|
|
*
|
|
* If the WIRESHARK_EXTCAP_DIR environment variable is set and we are not
|
|
* running with special privileges, use that. Otherwise:
|
|
*
|
|
* On Windows, we use the "extcap" subdirectory of the datafile directory.
|
|
*
|
|
* On UN*X:
|
|
*
|
|
* if we appear to be run from the build directory, we use the
|
|
* "extcap" subdirectory of the build directory.
|
|
*
|
|
* otherwise, if we're running from an app bundle in macOS, we
|
|
* use the Contents/MacOS/extcap subdirectory of the app bundle;
|
|
*
|
|
* otherwise, we use the EXTCAP_DIR value supplied by CMake.
|
|
*/
|
|
static char *extcap_dir = NULL;
|
|
|
|
static void
|
|
init_extcap_dir(void)
|
|
{
|
|
const char *extcap_dir_envar = CONFIGURATION_ENVIRONMENT_VARIABLE("EXTCAP_DIR");
|
|
if (g_getenv(extcap_dir_envar) && !started_with_special_privs()) {
|
|
/*
|
|
* The user specified a different directory for extcap hooks
|
|
* and we aren't running with special privileges.
|
|
*/
|
|
extcap_dir = g_strdup(g_getenv(extcap_dir_envar));
|
|
}
|
|
|
|
#if defined(__MINGW64__)
|
|
else if (running_in_build_directory_flag) {
|
|
extcap_dir = g_build_filename(install_prefix, "extcap", (gchar *)NULL);
|
|
} else {
|
|
extcap_dir = g_build_filename(install_prefix, EXTCAP_DIR, (gchar *)NULL);
|
|
}
|
|
#elif defined(_WIN32)
|
|
else {
|
|
/*
|
|
* On Windows, the data file directory is the installation
|
|
* directory; the extcap hooks are stored under it.
|
|
*
|
|
* Assume we're running the installed version of Wireshark;
|
|
* on Windows, the data file directory is the directory
|
|
* in which the Wireshark binary resides.
|
|
*/
|
|
extcap_dir = g_build_filename(get_datafile_dir(), "extcap", (gchar *)NULL);
|
|
}
|
|
#else
|
|
else if (running_in_build_directory_flag) {
|
|
/*
|
|
* We're (probably) being run from the build directory and
|
|
* weren't started with special privileges, so we'll use
|
|
* the "extcap hooks" subdirectory of the directory where the program
|
|
* we're running is (that's the build directory).
|
|
*/
|
|
extcap_dir = g_build_filename(get_progfile_dir(), "extcap", (gchar *)NULL);
|
|
}
|
|
#ifdef __APPLE__
|
|
else if (appbundle_dir != NULL) {
|
|
/*
|
|
* If we're running from an app bundle and weren't started
|
|
* with special privileges, use the Contents/MacOS/extcap
|
|
* subdirectory of the app bundle.
|
|
*
|
|
* (appbundle_dir is not set to a non-null value if we're
|
|
* started with special privileges, so we need only check
|
|
* it; we don't need to call started_with_special_privs().)
|
|
*/
|
|
extcap_dir = g_build_filename(appbundle_dir, "Contents/MacOS/extcap", (gchar *)NULL);
|
|
}
|
|
#endif
|
|
else {
|
|
/*
|
|
* XXX We might want want to make this relative to progfile_dir, which would
|
|
* allow installation into arbitrary directories and provide better AppImage
|
|
* support.
|
|
*/
|
|
extcap_dir = g_strdup(EXTCAP_DIR);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Get the directory in which the extcap hooks are stored.
|
|
*
|
|
*/
|
|
const char *
|
|
get_extcap_dir(void)
|
|
{
|
|
if (!extcap_dir)
|
|
init_extcap_dir();
|
|
return extcap_dir;
|
|
}
|
|
|
|
/*
|
|
* Get the flag indicating whether we're running from a build
|
|
* directory.
|
|
*/
|
|
gboolean
|
|
running_in_build_directory(void)
|
|
{
|
|
return running_in_build_directory_flag;
|
|
}
|
|
|
|
/*
|
|
* Get the directory in which files that, at least on UNIX, are
|
|
* system files (such as "/etc/ethers") are stored; on Windows,
|
|
* there's no "/etc" directory, so we get them from the global
|
|
* configuration and data file directory.
|
|
*/
|
|
const char *
|
|
get_systemfile_dir(void)
|
|
{
|
|
#ifdef _WIN32
|
|
return get_datafile_dir();
|
|
#else
|
|
return "/etc";
|
|
#endif
|
|
}
|
|
|
|
void
|
|
set_profile_name(const gchar *profilename)
|
|
{
|
|
g_free (persconfprofile);
|
|
|
|
if (profilename && strlen(profilename) > 0 &&
|
|
strcmp(profilename, DEFAULT_PROFILE) != 0) {
|
|
persconfprofile = g_strdup (profilename);
|
|
} else {
|
|
/* Default Profile */
|
|
persconfprofile = NULL;
|
|
}
|
|
}
|
|
|
|
const char *
|
|
get_profile_name(void)
|
|
{
|
|
if (persconfprofile) {
|
|
return persconfprofile;
|
|
} else {
|
|
return DEFAULT_PROFILE;
|
|
}
|
|
}
|
|
|
|
gboolean
|
|
is_default_profile(void)
|
|
{
|
|
return (!persconfprofile || strcmp(persconfprofile, DEFAULT_PROFILE) == 0) ? TRUE : FALSE;
|
|
}
|
|
|
|
gboolean
|
|
has_global_profiles(void)
|
|
{
|
|
WS_DIR *dir;
|
|
WS_DIRENT *file;
|
|
gchar *global_dir = get_global_profiles_dir();
|
|
gchar *filename;
|
|
gboolean has_global = FALSE;
|
|
|
|
if ((test_for_directory(global_dir) == EISDIR) &&
|
|
((dir = ws_dir_open(global_dir, 0, NULL)) != NULL))
|
|
{
|
|
while ((file = ws_dir_read_name(dir)) != NULL) {
|
|
filename = ws_strdup_printf ("%s%s%s", global_dir, G_DIR_SEPARATOR_S,
|
|
ws_dir_get_name(file));
|
|
if (test_for_directory(filename) == EISDIR) {
|
|
has_global = TRUE;
|
|
g_free (filename);
|
|
break;
|
|
}
|
|
g_free (filename);
|
|
}
|
|
ws_dir_close(dir);
|
|
}
|
|
g_free(global_dir);
|
|
return has_global;
|
|
}
|
|
|
|
void
|
|
profile_store_persconffiles(gboolean store)
|
|
{
|
|
if (store) {
|
|
profile_files = g_hash_table_new (g_str_hash, g_str_equal);
|
|
}
|
|
do_store_persconffiles = store;
|
|
}
|
|
|
|
void
|
|
profile_register_persconffile(const char *filename)
|
|
{
|
|
if (do_store_persconffiles && !g_hash_table_lookup (profile_files, filename)) {
|
|
/* Store filenames so we know which filenames belongs to a configuration profile */
|
|
g_hash_table_insert (profile_files, g_strdup(filename), g_strdup(filename));
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Get the directory in which personal configuration files reside.
|
|
*
|
|
* On Windows, it's "Wireshark", under %APPDATA% or, if %APPDATA% isn't set,
|
|
* it's "%USERPROFILE%\Application Data" (which is what %APPDATA% normally
|
|
* is on Windows 2000).
|
|
*
|
|
* On UNIX-compatible systems, we first look in XDG_CONFIG_HOME/wireshark
|
|
* and, if that doesn't exist, ~/.wireshark, for backwards compatibility.
|
|
* If neither exists, we use XDG_CONFIG_HOME/wireshark, so that the directory
|
|
* is initially created as XDG_CONFIG_HOME/wireshark. We use that regardless
|
|
* of whether the user is running under an XDG desktop or not, so that
|
|
* if the user's home directory is on a server and shared between
|
|
* different desktop environments on different machines, they can all
|
|
* share the same configuration file directory.
|
|
*
|
|
* XXX - what about stuff that shouldn't be shared between machines,
|
|
* such as plugins in the form of shared loadable images?
|
|
*/
|
|
static const char *
|
|
get_persconffile_dir_no_profile(void)
|
|
{
|
|
const char *env;
|
|
|
|
/* Return the cached value, if available */
|
|
if (persconffile_dir != NULL)
|
|
return persconffile_dir;
|
|
|
|
/*
|
|
* See if the user has selected an alternate environment.
|
|
*/
|
|
const char *config_dir_envar = CONFIGURATION_ENVIRONMENT_VARIABLE("CONFIG_DIR");
|
|
env = g_getenv(config_dir_envar);
|
|
#ifdef _WIN32
|
|
if (env == NULL) {
|
|
/* for backward compatibility */
|
|
env = g_getenv("WIRESHARK_APPDATA");
|
|
}
|
|
#endif
|
|
if (env != NULL) {
|
|
persconffile_dir = g_strdup(env);
|
|
return persconffile_dir;
|
|
}
|
|
|
|
#ifdef _WIN32
|
|
/*
|
|
* Use %APPDATA% or %USERPROFILE%, so that configuration
|
|
* files are stored in the user profile, rather than in
|
|
* the home directory. The Windows convention is to store
|
|
* configuration information in the user profile, and doing
|
|
* so means you can use Wireshark even if the home directory
|
|
* is an inaccessible network drive.
|
|
*/
|
|
env = g_getenv("APPDATA");
|
|
const char *persconf_namespace = CONFIGURATION_NAMESPACE_PROPER;
|
|
if (env != NULL) {
|
|
/*
|
|
* Concatenate %APPDATA% with "\Wireshark" or "\Logray".
|
|
*/
|
|
persconffile_dir = g_build_filename(env, persconf_namespace, NULL);
|
|
return persconffile_dir;
|
|
}
|
|
|
|
/*
|
|
* OK, %APPDATA% wasn't set, so use %USERPROFILE%\Application Data.
|
|
*/
|
|
env = g_getenv("USERPROFILE");
|
|
if (env != NULL) {
|
|
persconffile_dir = g_build_filename(env, "Application Data", persconf_namespace, NULL);
|
|
return persconffile_dir;
|
|
}
|
|
|
|
/*
|
|
* Give up and use "C:".
|
|
*/
|
|
persconffile_dir = g_build_filename("C:", persconf_namespace, NULL);
|
|
return persconffile_dir;
|
|
#else
|
|
char *xdg_path, *path;
|
|
struct passwd *pwd;
|
|
const char *homedir;
|
|
|
|
/*
|
|
* Check if XDG_CONFIG_HOME/wireshark exists and is a directory.
|
|
*/
|
|
xdg_path = g_build_filename(g_get_user_config_dir(),
|
|
CONFIGURATION_NAMESPACE_LOWER, NULL);
|
|
if (g_file_test(xdg_path, G_FILE_TEST_IS_DIR)) {
|
|
persconffile_dir = xdg_path;
|
|
return persconffile_dir;
|
|
}
|
|
|
|
/*
|
|
* It doesn't exist, or it does but isn't a directory, so try
|
|
* ~/.wireshark.
|
|
*
|
|
* If $HOME is set, use that for ~.
|
|
*
|
|
* (Note: before GLib 2.36, g_get_home_dir() didn't look at $HOME,
|
|
* but we always want to do so, so we don't use g_get_home_dir().)
|
|
*/
|
|
homedir = g_getenv("HOME");
|
|
if (homedir == NULL) {
|
|
/*
|
|
* It's not set.
|
|
*
|
|
* Get their home directory from the password file.
|
|
* If we can't even find a password file entry for them,
|
|
* use "/tmp".
|
|
*/
|
|
pwd = getpwuid(getuid());
|
|
if (pwd != NULL) {
|
|
homedir = pwd->pw_dir;
|
|
} else {
|
|
homedir = "/tmp";
|
|
}
|
|
}
|
|
path = g_build_filename(homedir,
|
|
configuration_namespace == CONFIGURATION_NAMESPACE_WIRESHARK ? ".wireshark" : ".logray",
|
|
NULL);
|
|
if (g_file_test(path, G_FILE_TEST_IS_DIR)) {
|
|
g_free(xdg_path);
|
|
persconffile_dir = path;
|
|
return persconffile_dir;
|
|
}
|
|
|
|
/*
|
|
* Neither are directories that exist; use the XDG path, so we'll
|
|
* create that as necessary.
|
|
*/
|
|
g_free(path);
|
|
persconffile_dir = xdg_path;
|
|
return persconffile_dir;
|
|
#endif
|
|
}
|
|
|
|
void
|
|
set_persconffile_dir(const char *p)
|
|
{
|
|
g_free(persconffile_dir);
|
|
persconffile_dir = g_strdup(p);
|
|
}
|
|
|
|
char *
|
|
get_profiles_dir(void)
|
|
{
|
|
return ws_strdup_printf ("%s%s%s", get_persconffile_dir_no_profile (),
|
|
G_DIR_SEPARATOR_S, PROFILES_DIR);
|
|
}
|
|
|
|
int
|
|
create_profiles_dir(char **pf_dir_path_return)
|
|
{
|
|
char *pf_dir_path;
|
|
ws_statb64 s_buf;
|
|
|
|
/*
|
|
* Create the "Default" personal configuration files directory, if necessary.
|
|
*/
|
|
if (create_persconffile_profile (NULL, pf_dir_path_return) == -1) {
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* Check if profiles directory exists.
|
|
* If not then create it.
|
|
*/
|
|
pf_dir_path = get_profiles_dir ();
|
|
if (ws_stat64(pf_dir_path, &s_buf) != 0) {
|
|
if (errno != ENOENT) {
|
|
/* Some other problem; give up now. */
|
|
*pf_dir_path_return = pf_dir_path;
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* It doesn't exist; try to create it.
|
|
*/
|
|
int ret = ws_mkdir(pf_dir_path, 0755);
|
|
if (ret == -1) {
|
|
*pf_dir_path_return = pf_dir_path;
|
|
return ret;
|
|
}
|
|
}
|
|
g_free(pf_dir_path);
|
|
|
|
return 0;
|
|
}
|
|
|
|
char *
|
|
get_global_profiles_dir(void)
|
|
{
|
|
return ws_strdup_printf ("%s%s%s", get_datafile_dir(),
|
|
G_DIR_SEPARATOR_S, PROFILES_DIR);
|
|
}
|
|
|
|
static char *
|
|
get_persconffile_dir(const gchar *profilename)
|
|
{
|
|
char *persconffile_profile_dir = NULL, *profile_dir;
|
|
|
|
if (profilename && strlen(profilename) > 0 &&
|
|
strcmp(profilename, DEFAULT_PROFILE) != 0) {
|
|
profile_dir = get_profiles_dir();
|
|
persconffile_profile_dir = ws_strdup_printf ("%s%s%s", profile_dir,
|
|
G_DIR_SEPARATOR_S, profilename);
|
|
g_free(profile_dir);
|
|
} else {
|
|
persconffile_profile_dir = g_strdup (get_persconffile_dir_no_profile ());
|
|
}
|
|
|
|
return persconffile_profile_dir;
|
|
}
|
|
|
|
char *
|
|
get_profile_dir(const char *profilename, gboolean is_global)
|
|
{
|
|
gchar *profile_dir;
|
|
|
|
if (is_global) {
|
|
if (profilename && strlen(profilename) > 0 &&
|
|
strcmp(profilename, DEFAULT_PROFILE) != 0)
|
|
{
|
|
gchar *global_path = get_global_profiles_dir();
|
|
profile_dir = g_build_filename(global_path, profilename, NULL);
|
|
g_free(global_path);
|
|
} else {
|
|
profile_dir = g_strdup(get_datafile_dir());
|
|
}
|
|
} else {
|
|
/*
|
|
* If we didn't supply a profile name, i.e. if profilename is
|
|
* null, get_persconffile_dir() returns the default profile.
|
|
*/
|
|
profile_dir = get_persconffile_dir(profilename);
|
|
}
|
|
|
|
return profile_dir;
|
|
}
|
|
|
|
gboolean
|
|
profile_exists(const gchar *profilename, gboolean global)
|
|
{
|
|
gchar *path = NULL;
|
|
gboolean exists;
|
|
|
|
/*
|
|
* If we're looking up a global profile, we must have a
|
|
* profile name.
|
|
*/
|
|
if (global && !profilename)
|
|
return FALSE;
|
|
|
|
path = get_profile_dir(profilename, global);
|
|
exists = (test_for_directory(path) == EISDIR) ? TRUE : FALSE;
|
|
|
|
g_free(path);
|
|
return exists;
|
|
}
|
|
|
|
static int
|
|
delete_directory (const char *directory, char **pf_dir_path_return)
|
|
{
|
|
WS_DIR *dir;
|
|
WS_DIRENT *file;
|
|
gchar *filename;
|
|
int ret = 0;
|
|
|
|
if ((dir = ws_dir_open(directory, 0, NULL)) != NULL) {
|
|
while ((file = ws_dir_read_name(dir)) != NULL) {
|
|
filename = ws_strdup_printf ("%s%s%s", directory, G_DIR_SEPARATOR_S,
|
|
ws_dir_get_name(file));
|
|
if (test_for_directory(filename) != EISDIR) {
|
|
ret = ws_remove(filename);
|
|
#if 0
|
|
} else {
|
|
/* The user has manually created a directory in the profile directory */
|
|
/* I do not want to delete the directory recursively yet */
|
|
ret = delete_directory (filename, pf_dir_path_return);
|
|
#endif
|
|
}
|
|
if (ret != 0) {
|
|
*pf_dir_path_return = filename;
|
|
break;
|
|
}
|
|
g_free (filename);
|
|
}
|
|
ws_dir_close(dir);
|
|
}
|
|
|
|
if (ret == 0 && (ret = ws_remove(directory)) != 0) {
|
|
*pf_dir_path_return = g_strdup (directory);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Copy files from one directory to another. Does not recursively copy directories */
|
|
static int
|
|
copy_directory(const char *from_dir, const char *to_dir, char **pf_filename_return)
|
|
{
|
|
int ret = 0;
|
|
gchar *from_file, *to_file;
|
|
const char *filename;
|
|
WS_DIR *dir;
|
|
WS_DIRENT *file;
|
|
|
|
if ((dir = ws_dir_open(from_dir, 0, NULL)) != NULL) {
|
|
while ((file = ws_dir_read_name(dir)) != NULL) {
|
|
filename = ws_dir_get_name(file);
|
|
from_file = ws_strdup_printf ("%s%s%s", from_dir, G_DIR_SEPARATOR_S, filename);
|
|
if (test_for_directory(from_file) != EISDIR) {
|
|
to_file = ws_strdup_printf ("%s%s%s", to_dir, G_DIR_SEPARATOR_S, filename);
|
|
if (!copy_file_binary_mode(from_file, to_file)) {
|
|
*pf_filename_return = g_strdup(filename);
|
|
g_free (from_file);
|
|
g_free (to_file);
|
|
ret = -1;
|
|
break;
|
|
}
|
|
g_free (to_file);
|
|
#if 0
|
|
} else {
|
|
/* The user has manually created a directory in the profile
|
|
* directory. Do not copy the directory recursively (yet?)
|
|
*/
|
|
#endif
|
|
}
|
|
g_free (from_file);
|
|
}
|
|
ws_dir_close(dir);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
reset_default_profile(char **pf_dir_path_return)
|
|
{
|
|
char *profile_dir = get_persconffile_dir(NULL);
|
|
gchar *filename, *del_file;
|
|
GList *files, *file;
|
|
int ret = 0;
|
|
|
|
files = g_hash_table_get_keys(profile_files);
|
|
file = g_list_first(files);
|
|
while (file) {
|
|
filename = (gchar *)file->data;
|
|
del_file = ws_strdup_printf("%s%s%s", profile_dir, G_DIR_SEPARATOR_S, filename);
|
|
|
|
if (file_exists(del_file)) {
|
|
ret = ws_remove(del_file);
|
|
if (ret != 0) {
|
|
*pf_dir_path_return = profile_dir;
|
|
g_free(del_file);
|
|
break;
|
|
}
|
|
}
|
|
|
|
g_free(del_file);
|
|
file = g_list_next(file);
|
|
}
|
|
g_list_free(files);
|
|
|
|
g_free(profile_dir);
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
delete_persconffile_profile(const char *profilename, char **pf_dir_path_return)
|
|
{
|
|
if (strcmp(profilename, DEFAULT_PROFILE) == 0) {
|
|
return reset_default_profile(pf_dir_path_return);
|
|
}
|
|
|
|
char *profile_dir = get_persconffile_dir(profilename);
|
|
int ret = 0;
|
|
|
|
if (test_for_directory (profile_dir) == EISDIR) {
|
|
ret = delete_directory (profile_dir, pf_dir_path_return);
|
|
}
|
|
|
|
g_free(profile_dir);
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
rename_persconffile_profile(const char *fromname, const char *toname,
|
|
char **pf_from_dir_path_return, char **pf_to_dir_path_return)
|
|
{
|
|
char *from_dir = get_persconffile_dir(fromname);
|
|
char *to_dir = get_persconffile_dir(toname);
|
|
int ret = 0;
|
|
|
|
ret = ws_rename (from_dir, to_dir);
|
|
if (ret != 0) {
|
|
*pf_from_dir_path_return = from_dir;
|
|
*pf_to_dir_path_return = to_dir;
|
|
return ret;
|
|
}
|
|
|
|
g_free (from_dir);
|
|
g_free (to_dir);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Create the directory that holds personal configuration files, if
|
|
* necessary. If we attempted to create it, and failed, return -1 and
|
|
* set "*pf_dir_path_return" to the pathname of the directory we failed
|
|
* to create (it's g_mallocated, so our caller should free it); otherwise,
|
|
* return 0.
|
|
*/
|
|
int
|
|
create_persconffile_profile(const char *profilename, char **pf_dir_path_return)
|
|
{
|
|
char *pf_dir_path;
|
|
#ifdef _WIN32
|
|
char *pf_dir_path_copy, *pf_dir_parent_path;
|
|
size_t pf_dir_parent_path_len;
|
|
int save_errno;
|
|
#endif
|
|
ws_statb64 s_buf;
|
|
int ret;
|
|
|
|
if (profilename) {
|
|
/*
|
|
* Create the personal profiles directory, if necessary.
|
|
*/
|
|
if (create_profiles_dir(pf_dir_path_return) == -1) {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
pf_dir_path = get_persconffile_dir(profilename);
|
|
if (ws_stat64(pf_dir_path, &s_buf) != 0) {
|
|
if (errno != ENOENT) {
|
|
/* Some other problem; give up now. */
|
|
*pf_dir_path_return = pf_dir_path;
|
|
return -1;
|
|
}
|
|
#ifdef _WIN32
|
|
/*
|
|
* Does the parent directory of that directory
|
|
* exist? %APPDATA% may not exist even though
|
|
* %USERPROFILE% does.
|
|
*
|
|
* We check for the existence of the directory
|
|
* by first checking whether the parent directory
|
|
* is just a drive letter and, if it's not, by
|
|
* doing a "stat()" on it. If it's a drive letter,
|
|
* or if the "stat()" succeeds, we assume it exists.
|
|
*/
|
|
pf_dir_path_copy = g_strdup(pf_dir_path);
|
|
pf_dir_parent_path = get_dirname(pf_dir_path_copy);
|
|
pf_dir_parent_path_len = strlen(pf_dir_parent_path);
|
|
if (pf_dir_parent_path_len > 0
|
|
&& pf_dir_parent_path[pf_dir_parent_path_len - 1] != ':'
|
|
&& ws_stat64(pf_dir_parent_path, &s_buf) != 0) {
|
|
/*
|
|
* Not a drive letter and the stat() failed.
|
|
*/
|
|
if (errno != ENOENT) {
|
|
/* Some other problem; give up now. */
|
|
*pf_dir_path_return = pf_dir_path;
|
|
save_errno = errno;
|
|
g_free(pf_dir_path_copy);
|
|
errno = save_errno;
|
|
return -1;
|
|
}
|
|
/*
|
|
* No, it doesn't exist - make it first.
|
|
*/
|
|
ret = ws_mkdir(pf_dir_parent_path, 0755);
|
|
if (ret == -1) {
|
|
*pf_dir_path_return = pf_dir_parent_path;
|
|
save_errno = errno;
|
|
g_free(pf_dir_path);
|
|
errno = save_errno;
|
|
return -1;
|
|
}
|
|
}
|
|
g_free(pf_dir_path_copy);
|
|
ret = ws_mkdir(pf_dir_path, 0755);
|
|
#else
|
|
ret = g_mkdir_with_parents(pf_dir_path, 0755);
|
|
#endif
|
|
} else {
|
|
/*
|
|
* Something with that pathname exists; if it's not
|
|
* a directory, we'll get an error if we try to put
|
|
* something in it, so we don't fail here, we wait
|
|
* for that attempt to fail.
|
|
*/
|
|
ret = 0;
|
|
}
|
|
if (ret == -1)
|
|
*pf_dir_path_return = pf_dir_path;
|
|
else
|
|
g_free(pf_dir_path);
|
|
|
|
return ret;
|
|
}
|
|
|
|
const GHashTable *
|
|
allowed_profile_filenames(void)
|
|
{
|
|
return profile_files;
|
|
}
|
|
|
|
int
|
|
create_persconffile_dir(char **pf_dir_path_return)
|
|
{
|
|
return create_persconffile_profile(persconfprofile, pf_dir_path_return);
|
|
}
|
|
|
|
int
|
|
copy_persconffile_profile(const char *toname, const char *fromname, gboolean from_global,
|
|
char **pf_filename_return, char **pf_to_dir_path_return, char **pf_from_dir_path_return)
|
|
{
|
|
int ret = 0;
|
|
gchar *from_dir;
|
|
gchar *to_dir = get_persconffile_dir(toname);
|
|
gchar *from_file, *to_file;
|
|
const char *filename;
|
|
GHashTableIter files;
|
|
gpointer file;
|
|
|
|
from_dir = get_profile_dir(fromname, from_global);
|
|
|
|
if (!profile_files || do_store_persconffiles) {
|
|
/* Either the profile_files hashtable does not exist yet
|
|
* (this is very early in startup) or we are still adding
|
|
* files to it. Just copy all the non-directories.
|
|
*/
|
|
ret = copy_directory(from_dir, to_dir, pf_filename_return);
|
|
} else {
|
|
|
|
g_hash_table_iter_init(&files, profile_files);
|
|
while (g_hash_table_iter_next(&files, &file, NULL)) {
|
|
filename = (const char *)file;
|
|
from_file = ws_strdup_printf ("%s%s%s", from_dir, G_DIR_SEPARATOR_S, filename);
|
|
to_file = ws_strdup_printf ("%s%s%s", to_dir, G_DIR_SEPARATOR_S, filename);
|
|
|
|
if (file_exists(from_file) && !copy_file_binary_mode(from_file, to_file)) {
|
|
*pf_filename_return = g_strdup(filename);
|
|
g_free (from_file);
|
|
g_free (to_file);
|
|
ret = -1;
|
|
break;
|
|
}
|
|
|
|
g_free (to_file);
|
|
g_free (from_file);
|
|
}
|
|
}
|
|
|
|
if (ret != 0) {
|
|
*pf_to_dir_path_return = to_dir;
|
|
*pf_from_dir_path_return = from_dir;
|
|
} else {
|
|
g_free (to_dir);
|
|
g_free (from_dir);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Get the (default) directory in which personal data is stored.
|
|
*
|
|
* On Win32, this is the "My Documents" folder in the personal profile.
|
|
* On UNIX this is simply the current directory.
|
|
*/
|
|
/* XXX - should this and the get_home_dir() be merged? */
|
|
extern const char *
|
|
get_persdatafile_dir(void)
|
|
{
|
|
#ifdef _WIN32
|
|
TCHAR tszPath[MAX_PATH];
|
|
|
|
/* Return the cached value, if available */
|
|
if (persdatafile_dir != NULL)
|
|
return persdatafile_dir;
|
|
|
|
/*
|
|
* Hint: SHGetFolderPath is not available on MSVC 6 - without
|
|
* Platform SDK
|
|
*/
|
|
if (SHGetSpecialFolderPath(NULL, tszPath, CSIDL_PERSONAL, FALSE)) {
|
|
persdatafile_dir = g_utf16_to_utf8(tszPath, -1, NULL, NULL, NULL);
|
|
return persdatafile_dir;
|
|
} else {
|
|
return "";
|
|
}
|
|
#else
|
|
return "";
|
|
#endif
|
|
}
|
|
|
|
void
|
|
set_persdatafile_dir(const char *p)
|
|
{
|
|
g_free(persdatafile_dir);
|
|
persdatafile_dir = g_strdup(p);
|
|
}
|
|
|
|
/*
|
|
* Construct the path name of a personal configuration file, given the
|
|
* file name.
|
|
*
|
|
* On Win32, if "for_writing" is FALSE, we check whether the file exists
|
|
* and, if not, construct a path name relative to the ".wireshark"
|
|
* subdirectory of the user's home directory, and check whether that
|
|
* exists; if it does, we return that, so that configuration files
|
|
* from earlier versions can be read.
|
|
*
|
|
* The returned file name was g_malloc()'d so it must be g_free()d when the
|
|
* caller is done with it.
|
|
*/
|
|
char *
|
|
get_persconffile_path(const char *filename, gboolean from_profile)
|
|
{
|
|
char *path, *dir = NULL;
|
|
|
|
if (from_profile) {
|
|
/* Store filenames so we know which filenames belongs to a configuration profile */
|
|
profile_register_persconffile(filename);
|
|
|
|
dir = get_persconffile_dir(persconfprofile);
|
|
} else {
|
|
dir = get_persconffile_dir(NULL);
|
|
}
|
|
path = g_build_filename(dir, filename, NULL);
|
|
|
|
g_free(dir);
|
|
return path;
|
|
}
|
|
|
|
/*
|
|
* Construct the path name of a global configuration file, given the
|
|
* file name.
|
|
*
|
|
* The returned file name was g_malloc()'d so it must be g_free()d when the
|
|
* caller is done with it.
|
|
*/
|
|
char *
|
|
get_datafile_path(const char *filename)
|
|
{
|
|
if (running_in_build_directory_flag && !strcmp(filename, "hosts")) {
|
|
/* We're running in the build directory and the requested file is a
|
|
* generated (or a test) file. Return the file name in the build
|
|
* directory (not in the source/data directory).
|
|
* (Oh the things we do to keep the source directory pristine...)
|
|
*/
|
|
return g_build_filename(get_progfile_dir(), filename, (char *)NULL);
|
|
} else {
|
|
return g_build_filename(get_datafile_dir(), filename, (char *)NULL);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Construct the path name of a global documentation file, given the
|
|
* file name.
|
|
*
|
|
* The returned file name was g_malloc()'d so it must be g_free()d when the
|
|
* caller is done with it.
|
|
*/
|
|
char *
|
|
get_docfile_path(const char *filename)
|
|
{
|
|
if (running_in_build_directory_flag) {
|
|
/* We're running in the build directory and the requested file is a
|
|
* generated (or a test) file. Return the file name in the build
|
|
* directory (not in the source/data directory).
|
|
* (Oh the things we do to keep the source directory pristine...)
|
|
*/
|
|
return g_build_filename(get_progfile_dir(), filename, (char *)NULL);
|
|
} else {
|
|
return g_build_filename(get_doc_dir(), filename, (char *)NULL);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Return an error message for UNIX-style errno indications on open or
|
|
* create operations.
|
|
*/
|
|
const char *
|
|
file_open_error_message(int err, gboolean for_writing)
|
|
{
|
|
const char *errmsg;
|
|
static char errmsg_errno[1024+1];
|
|
|
|
switch (err) {
|
|
|
|
case ENOENT:
|
|
if (for_writing)
|
|
errmsg = "The path to the file \"%s\" doesn't exist.";
|
|
else
|
|
errmsg = "The file \"%s\" doesn't exist.";
|
|
break;
|
|
|
|
case EACCES:
|
|
if (for_writing)
|
|
errmsg = "You don't have permission to create or write to the file \"%s\".";
|
|
else
|
|
errmsg = "You don't have permission to read the file \"%s\".";
|
|
break;
|
|
|
|
case EISDIR:
|
|
errmsg = "\"%s\" is a directory (folder), not a file.";
|
|
break;
|
|
|
|
case ENOSPC:
|
|
errmsg = "The file \"%s\" could not be created because there is no space left on the file system.";
|
|
break;
|
|
|
|
#ifdef EDQUOT
|
|
case EDQUOT:
|
|
errmsg = "The file \"%s\" could not be created because you are too close to, or over, your disk quota.";
|
|
break;
|
|
#endif
|
|
|
|
case EINVAL:
|
|
errmsg = "The file \"%s\" could not be created because an invalid filename was specified.";
|
|
break;
|
|
|
|
#ifdef ENAMETOOLONG
|
|
case ENAMETOOLONG:
|
|
/* XXX Make sure we truncate on a character boundary. */
|
|
errmsg = "The file name \"%.80s" UTF8_HORIZONTAL_ELLIPSIS "\" is too long.";
|
|
break;
|
|
#endif
|
|
|
|
case ENOMEM:
|
|
/*
|
|
* The problem probably has nothing to do with how much RAM the
|
|
* user has on their machine, so don't confuse them by saying
|
|
* "memory". The problem is probably either virtual address
|
|
* space or swap space.
|
|
*/
|
|
#if GLIB_SIZEOF_VOID_P == 4
|
|
/*
|
|
* ILP32; we probably ran out of virtual address space.
|
|
*/
|
|
#define ENOMEM_REASON "it can't be handled by a 32-bit application"
|
|
#else
|
|
/*
|
|
* LP64 or LLP64; we probably ran out of swap space.
|
|
*/
|
|
#if defined(_WIN32)
|
|
/*
|
|
* You need to make the pagefile bigger.
|
|
*/
|
|
#define ENOMEM_REASON "the pagefile is too small"
|
|
#elif defined(__APPLE__)
|
|
/*
|
|
* dynamic_pager couldn't, or wouldn't, create more swap files.
|
|
*/
|
|
#define ENOMEM_REASON "your system ran out of swap file space"
|
|
#else
|
|
/*
|
|
* Either you have a fixed swap partition or a fixed swap file,
|
|
* and it needs to be made bigger.
|
|
*
|
|
* This is UN*X, but it's not macOS, so we assume the user is
|
|
* *somewhat* nerdy.
|
|
*/
|
|
#define ENOMEM_REASON "your system is out of swap space"
|
|
#endif
|
|
#endif /* GLIB_SIZEOF_VOID_P == 4 */
|
|
if (for_writing)
|
|
errmsg = "The file \"%s\" could not be created because " ENOMEM_REASON ".";
|
|
else
|
|
errmsg = "The file \"%s\" could not be opened because " ENOMEM_REASON ".";
|
|
break;
|
|
|
|
default:
|
|
snprintf(errmsg_errno, sizeof(errmsg_errno),
|
|
"The file \"%%s\" could not be %s: %s.",
|
|
for_writing ? "created" : "opened",
|
|
g_strerror(err));
|
|
errmsg = errmsg_errno;
|
|
break;
|
|
}
|
|
return errmsg;
|
|
}
|
|
|
|
/*
|
|
* Return an error message for UNIX-style errno indications on write
|
|
* operations.
|
|
*/
|
|
const char *
|
|
file_write_error_message(int err)
|
|
{
|
|
const char *errmsg;
|
|
static char errmsg_errno[1024+1];
|
|
|
|
switch (err) {
|
|
|
|
case ENOSPC:
|
|
errmsg = "The file \"%s\" could not be saved because there is no space left on the file system.";
|
|
break;
|
|
|
|
#ifdef EDQUOT
|
|
case EDQUOT:
|
|
errmsg = "The file \"%s\" could not be saved because you are too close to, or over, your disk quota.";
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
snprintf(errmsg_errno, sizeof(errmsg_errno),
|
|
"An error occurred while writing to the file \"%%s\": %s.",
|
|
g_strerror(err));
|
|
errmsg = errmsg_errno;
|
|
break;
|
|
}
|
|
return errmsg;
|
|
}
|
|
|
|
|
|
gboolean
|
|
file_exists(const char *fname)
|
|
{
|
|
ws_statb64 file_stat;
|
|
|
|
if (!fname) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (ws_stat64(fname, &file_stat) != 0 && errno == ENOENT) {
|
|
return FALSE;
|
|
} else {
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
gboolean config_file_exists_with_entries(const char *fname, char comment_char)
|
|
{
|
|
gboolean start_of_line = TRUE;
|
|
gboolean has_entries = FALSE;
|
|
FILE *file;
|
|
int c;
|
|
|
|
if (!fname) {
|
|
return FALSE;
|
|
}
|
|
|
|
if ((file = ws_fopen(fname, "r")) == NULL) {
|
|
return FALSE;
|
|
}
|
|
|
|
do {
|
|
c = ws_getc_unlocked(file);
|
|
if (start_of_line && c != comment_char && !g_ascii_isspace(c) && g_ascii_isprint(c)) {
|
|
has_entries = TRUE;
|
|
break;
|
|
}
|
|
if (c == '\n' || !g_ascii_isspace(c)) {
|
|
start_of_line = (c == '\n');
|
|
}
|
|
} while (c != EOF);
|
|
|
|
fclose(file);
|
|
return has_entries;
|
|
}
|
|
|
|
/*
|
|
* Check that the from file is not the same as to file
|
|
* We do it here so we catch all cases ...
|
|
* Unfortunately, the file requester gives us an absolute file
|
|
* name and the read file name may be relative (if supplied on
|
|
* the command line), so we can't just compare paths. From Joerg Mayer.
|
|
*/
|
|
gboolean
|
|
files_identical(const char *fname1, const char *fname2)
|
|
{
|
|
/* Two different implementations, because:
|
|
*
|
|
* - _fullpath is not available on UN*X, so we can't get full
|
|
* paths and compare them (which wouldn't work with hard links
|
|
* in any case);
|
|
*
|
|
* - st_ino isn't filled in with a meaningful value on Windows.
|
|
*/
|
|
#ifdef _WIN32
|
|
char full1[MAX_PATH], full2[MAX_PATH];
|
|
|
|
/*
|
|
* Get the absolute full paths of the file and compare them.
|
|
* That won't work if you have hard links, but those aren't
|
|
* much used on Windows, even though NTFS supports them.
|
|
*
|
|
* XXX - will _fullpath work with UNC?
|
|
*/
|
|
if( _fullpath( full1, fname1, MAX_PATH ) == NULL ) {
|
|
return FALSE;
|
|
}
|
|
|
|
if( _fullpath( full2, fname2, MAX_PATH ) == NULL ) {
|
|
return FALSE;
|
|
}
|
|
|
|
if(strcmp(full1, full2) == 0) {
|
|
return TRUE;
|
|
} else {
|
|
return FALSE;
|
|
}
|
|
#else
|
|
ws_statb64 filestat1, filestat2;
|
|
|
|
/*
|
|
* Compare st_dev and st_ino.
|
|
*/
|
|
if (ws_stat64(fname1, &filestat1) == -1)
|
|
return FALSE; /* can't get info about the first file */
|
|
if (ws_stat64(fname2, &filestat2) == -1)
|
|
return FALSE; /* can't get info about the second file */
|
|
return (filestat1.st_dev == filestat2.st_dev &&
|
|
filestat1.st_ino == filestat2.st_ino);
|
|
#endif
|
|
}
|
|
|
|
gboolean
|
|
file_needs_reopen(int fd, const char* filename)
|
|
{
|
|
#ifdef _WIN32
|
|
/* Windows handles st_dev in a way unsuitable here:
|
|
* * _fstat() simply casts the file descriptor (ws_fileno(fp)) to unsigned
|
|
* and assigns this value to st_dev and st_rdev
|
|
* * _wstat() converts drive letter (eg. C) to number (A=0, B=1, C=2, ...)
|
|
* and assigns such number to st_dev and st_rdev
|
|
*
|
|
* The st_ino parameter is simply zero as there is no specific assignment
|
|
* to it in the Universal CRT source code.
|
|
*
|
|
* Thus instead of using fstat(), use Windows specific API.
|
|
*/
|
|
|
|
HANDLE open_handle = (HANDLE)_get_osfhandle(fd);
|
|
HANDLE current_handle = CreateFile(utf_8to16(filename), FILE_READ_ATTRIBUTES,
|
|
FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
|
|
NULL, OPEN_EXISTING, 0, NULL);
|
|
BY_HANDLE_FILE_INFORMATION open_info, current_info;
|
|
|
|
if (current_handle == INVALID_HANDLE_VALUE) {
|
|
return TRUE;
|
|
}
|
|
|
|
#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
|
|
FILE_ID_INFO open_id, current_id;
|
|
if (GetFileInformationByHandleEx(open_handle, FileIdInfo, &open_id, sizeof(open_id)) &&
|
|
GetFileInformationByHandleEx(current_handle, FileIdInfo, ¤t_id, sizeof(current_id))) {
|
|
/* 128-bit identifier is available, use it */
|
|
CloseHandle(current_handle);
|
|
return open_id.VolumeSerialNumber != current_id.VolumeSerialNumber ||
|
|
memcmp(&open_id.FileId, ¤t_id.FileId, sizeof(open_id.FileId)) != 0;
|
|
}
|
|
#endif /* _WIN32_WINNT >= _WIN32_WINNT_WIN8 */
|
|
if (GetFileInformationByHandle(open_handle, &open_info) &&
|
|
GetFileInformationByHandle(current_handle, ¤t_info)) {
|
|
/* Fallback to 64-bit identifier */
|
|
CloseHandle(current_handle);
|
|
guint64 open_size = (((guint64)open_info.nFileSizeHigh) << 32) | open_info.nFileSizeLow;
|
|
guint64 current_size = (((guint64)current_info.nFileSizeHigh) << 32) | current_info.nFileSizeLow;
|
|
return open_info.dwVolumeSerialNumber != current_info.dwVolumeSerialNumber ||
|
|
open_info.nFileIndexHigh != current_info.nFileIndexHigh ||
|
|
open_info.nFileIndexLow != current_info.nFileIndexLow ||
|
|
open_size > current_size;
|
|
}
|
|
CloseHandle(current_handle);
|
|
return TRUE;
|
|
#else
|
|
ws_statb64 open_stat, current_stat;
|
|
|
|
/* consider a file deleted when stat fails for either file,
|
|
* or when the residing device / inode has changed. */
|
|
if (0 != ws_fstat64(fd, &open_stat))
|
|
return TRUE;
|
|
if (0 != ws_stat64(filename, ¤t_stat))
|
|
return TRUE;
|
|
|
|
return open_stat.st_dev != current_stat.st_dev ||
|
|
open_stat.st_ino != current_stat.st_ino ||
|
|
open_stat.st_size > current_stat.st_size;
|
|
#endif
|
|
}
|
|
|
|
gboolean
|
|
write_file_binary_mode(const char *filename, const void *content, size_t content_len)
|
|
{
|
|
int fd;
|
|
size_t bytes_left;
|
|
unsigned int bytes_to_write;
|
|
ssize_t bytes_written;
|
|
const guint8 *ptr;
|
|
int err;
|
|
|
|
fd = ws_open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
|
|
if (fd == -1) {
|
|
report_open_failure(filename, errno, TRUE);
|
|
return FALSE;
|
|
}
|
|
|
|
/*
|
|
* The third argument to _write() on Windows is an unsigned int,
|
|
* so, on Windows, that's the size of the third argument to
|
|
* ws_write().
|
|
*
|
|
* The third argument to write() on UN*X is a size_t, although
|
|
* the return value is an ssize_t, so one probably shouldn't
|
|
* write more than the max value of an ssize_t.
|
|
*
|
|
* In either case, there's no guarantee that a size_t such as
|
|
* content_len can be passed to ws_write(), so we write in
|
|
* chunks of at most 2^31 bytes.
|
|
*/
|
|
|
|
ptr = (const guint8 *)content;
|
|
bytes_left = content_len;
|
|
while (bytes_left != 0) {
|
|
if (bytes_left > 0x40000000) {
|
|
bytes_to_write = 0x40000000;
|
|
} else {
|
|
bytes_to_write = (unsigned int)bytes_left;
|
|
}
|
|
bytes_written = ws_write(fd, ptr, bytes_to_write);
|
|
if (bytes_written <= 0) {
|
|
if (bytes_written < 0) {
|
|
err = errno;
|
|
} else {
|
|
err = WTAP_ERR_SHORT_WRITE;
|
|
}
|
|
report_write_failure(filename, err);
|
|
ws_close(fd);
|
|
return FALSE;
|
|
}
|
|
bytes_left -= bytes_written;
|
|
ptr += bytes_written;
|
|
}
|
|
|
|
ws_close(fd);
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* Copy a file in binary mode, for those operating systems that care about
|
|
* such things. This should be OK for all files, even text files, as
|
|
* we'll copy the raw bytes, and we don't look at the bytes as we copy
|
|
* them.
|
|
*
|
|
* Returns TRUE on success, FALSE on failure. If a failure, it also
|
|
* displays a simple dialog window with the error message.
|
|
*/
|
|
gboolean
|
|
copy_file_binary_mode(const char *from_filename, const char *to_filename)
|
|
{
|
|
int from_fd, to_fd, err;
|
|
ws_file_ssize_t nread, nwritten;
|
|
guint8 *pd = NULL;
|
|
|
|
/* Copy the raw bytes of the file. */
|
|
from_fd = ws_open(from_filename, O_RDONLY | O_BINARY, 0000 /* no creation so don't matter */);
|
|
if (from_fd < 0) {
|
|
report_open_failure(from_filename, errno, FALSE);
|
|
goto done;
|
|
}
|
|
|
|
/* Use open() instead of creat() so that we can pass the O_BINARY
|
|
flag, which is relevant on Win32; it appears that "creat()"
|
|
may open the file in text mode, not binary mode, but we want
|
|
to copy the raw bytes of the file, so we need the output file
|
|
to be open in binary mode. */
|
|
to_fd = ws_open(to_filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
|
|
if (to_fd < 0) {
|
|
report_open_failure(to_filename, errno, TRUE);
|
|
ws_close(from_fd);
|
|
goto done;
|
|
}
|
|
|
|
#define FS_READ_SIZE 65536
|
|
pd = (guint8 *)g_malloc(FS_READ_SIZE);
|
|
while ((nread = ws_read(from_fd, pd, FS_READ_SIZE)) > 0) {
|
|
nwritten = ws_write(to_fd, pd, nread);
|
|
if (nwritten < nread) {
|
|
if (nwritten < 0)
|
|
err = errno;
|
|
else
|
|
err = WTAP_ERR_SHORT_WRITE;
|
|
report_write_failure(to_filename, err);
|
|
ws_close(from_fd);
|
|
ws_close(to_fd);
|
|
goto done;
|
|
}
|
|
}
|
|
if (nread < 0) {
|
|
err = errno;
|
|
report_read_failure(from_filename, err);
|
|
ws_close(from_fd);
|
|
ws_close(to_fd);
|
|
goto done;
|
|
}
|
|
ws_close(from_fd);
|
|
if (ws_close(to_fd) < 0) {
|
|
report_write_failure(to_filename, errno);
|
|
goto done;
|
|
}
|
|
|
|
g_free(pd);
|
|
pd = NULL;
|
|
return TRUE;
|
|
|
|
done:
|
|
g_free(pd);
|
|
return FALSE;
|
|
}
|
|
|
|
gchar *
|
|
data_file_url(const gchar *filename)
|
|
{
|
|
gchar *file_path;
|
|
gchar *uri;
|
|
|
|
/* Absolute path? */
|
|
if(g_path_is_absolute(filename)) {
|
|
file_path = g_strdup(filename);
|
|
} else {
|
|
file_path = ws_strdup_printf("%s/%s", get_datafile_dir(), filename);
|
|
}
|
|
|
|
/* XXX - check, if the file is really existing, otherwise display a simple_dialog about the problem */
|
|
|
|
/* convert filename to uri */
|
|
uri = g_filename_to_uri(file_path, NULL, NULL);
|
|
g_free(file_path);
|
|
return uri;
|
|
}
|
|
|
|
gchar *
|
|
doc_file_url(const gchar *filename)
|
|
{
|
|
gchar *file_path;
|
|
gchar *uri;
|
|
|
|
/* Absolute path? */
|
|
if(g_path_is_absolute(filename)) {
|
|
file_path = g_strdup(filename);
|
|
} else {
|
|
file_path = ws_strdup_printf("%s/%s", get_doc_dir(), filename);
|
|
}
|
|
|
|
/* XXX - check, if the file is really existing, otherwise display a simple_dialog about the problem */
|
|
|
|
/* convert filename to uri */
|
|
uri = g_filename_to_uri(file_path, NULL, NULL);
|
|
g_free(file_path);
|
|
return uri;
|
|
}
|
|
|
|
void
|
|
free_progdirs(void)
|
|
{
|
|
g_free(persconffile_dir);
|
|
persconffile_dir = NULL;
|
|
g_free(datafile_dir);
|
|
datafile_dir = NULL;
|
|
g_free(persdatafile_dir);
|
|
persdatafile_dir = NULL;
|
|
g_free(persconfprofile);
|
|
persconfprofile = NULL;
|
|
g_free(progfile_dir);
|
|
progfile_dir = NULL;
|
|
g_free(doc_dir);
|
|
doc_dir = NULL;
|
|
#ifdef __MINGW64__
|
|
g_free(install_prefix);
|
|
install_prefix = NULL;
|
|
#endif
|
|
#if defined(HAVE_PLUGINS) || defined(HAVE_LUA)
|
|
g_free(plugin_dir);
|
|
plugin_dir = NULL;
|
|
g_free(plugin_dir_with_version);
|
|
plugin_dir_with_version = NULL;
|
|
g_free(plugin_pers_dir);
|
|
plugin_pers_dir = NULL;
|
|
g_free(plugin_pers_dir_with_version);
|
|
plugin_pers_dir_with_version = NULL;
|
|
#endif
|
|
g_free(extcap_dir);
|
|
extcap_dir = NULL;
|
|
}
|
|
|
|
/*
|
|
* Editor modelines
|
|
*
|
|
* Local Variables:
|
|
* c-basic-offset: 4
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* ex: set shiftwidth=4 tabstop=8 expandtab:
|
|
* :indentSize=4:tabSize=8:noTabs=true:
|
|
*/
|