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-rw-r--r--src/lib/osinfo/.may_include5
-rw-r--r--src/lib/osinfo/include.am17
-rw-r--r--src/lib/osinfo/uname.c149
-rw-r--r--src/lib/osinfo/uname.h18
4 files changed, 189 insertions, 0 deletions
diff --git a/src/lib/osinfo/.may_include b/src/lib/osinfo/.may_include
new file mode 100644
index 0000000000..058f6eb89c
--- /dev/null
+++ b/src/lib/osinfo/.may_include
@@ -0,0 +1,5 @@
+orconfig.h
+
+lib/osinfo/*.h
+lib/string/*.h
+lib/testsupport/*.h
diff --git a/src/lib/osinfo/include.am b/src/lib/osinfo/include.am
new file mode 100644
index 0000000000..16c5812604
--- /dev/null
+++ b/src/lib/osinfo/include.am
@@ -0,0 +1,17 @@
+
+noinst_LIBRARIES += src/lib/libtor-osinfo.a
+
+if UNITTESTS_ENABLED
+noinst_LIBRARIES += src/lib/libtor-osinfo-testing.a
+endif
+
+src_lib_libtor_osinfo_a_SOURCES = \
+ src/lib/osinfo/uname.c
+
+src_lib_libtor_osinfo_testing_a_SOURCES = \
+ $(src_lib_libtor_osinfo_a_SOURCES)
+src_lib_libtor_osinfo_testing_a_CPPFLAGS = $(AM_CPPFLAGS) $(TEST_CPPFLAGS)
+src_lib_libtor_osinfo_testing_a_CFLAGS = $(AM_CFLAGS) $(TEST_CFLAGS)
+
+noinst_HEADERS += \
+ src/lib/osinfo/uname.h
diff --git a/src/lib/osinfo/uname.c b/src/lib/osinfo/uname.c
new file mode 100644
index 0000000000..7111ae31d2
--- /dev/null
+++ b/src/lib/osinfo/uname.c
@@ -0,0 +1,149 @@
+/* Copyright (c) 2003-2004, Roger Dingledine
+ * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
+ * Copyright (c) 2007-2018, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+/**
+ * \file uname.c
+ * \brief Look up a description of the operating system.
+ **/
+
+#include "orconfig.h"
+#include "lib/osinfo/uname.h"
+
+#include "lib/string/compat_string.h"
+#include "lib/string/printf.h"
+
+#ifdef HAVE_UNAME
+#include <sys/utsname.h>
+#endif
+#ifdef _WIN32
+#include <windows.h>
+#endif
+#include <string.h>
+
+/** Hold the result of our call to <b>uname</b>. */
+static char uname_result[256];
+/** True iff uname_result is set. */
+static int uname_result_is_set = 0;
+
+/** Return a pointer to a description of our platform.
+ */
+MOCK_IMPL(const char *,
+get_uname,(void))
+{
+#ifdef HAVE_UNAME
+ struct utsname u;
+#endif
+ if (!uname_result_is_set) {
+#ifdef HAVE_UNAME
+ if (uname(&u) != -1) {
+ /* (Linux says 0 is success, Solaris says 1 is success) */
+ strlcpy(uname_result, u.sysname, sizeof(uname_result));
+ } else
+#endif /* defined(HAVE_UNAME) */
+ {
+#ifdef _WIN32
+ OSVERSIONINFOEX info;
+ int i;
+ int is_client = 0;
+ int is_server = 0;
+ const char *plat = NULL;
+ static struct {
+ unsigned major; unsigned minor;
+ const char *client_version; const char *server_version;
+ } win_version_table[] = {
+ /* This table must be sorted in descending order.
+ * Sources:
+ * https://en.wikipedia.org/wiki/List_of_Microsoft_Windows_versions
+ * https://docs.microsoft.com/en-us/windows/desktop/api/winnt/
+ * ns-winnt-_osversioninfoexa#remarks
+ */
+ /* Windows Server 2019 is indistinguishable from Windows Server 2016
+ * using GetVersionEx().
+ { 10, 0, NULL, "Windows Server 2019" }, */
+ { 10, 0, "Windows 10", "Windows Server 2016" },
+ { 6, 3, "Windows 8.1", "Windows Server 2012 R2" },
+ { 6, 2, "Windows 8", "Windows Server 2012" },
+ { 6, 1, "Windows 7", "Windows Server 2008 R2" },
+ { 6, 0, "Windows Vista", "Windows Server 2008" },
+ { 5, 2, "Windows XP Professional", "Windows Server 2003" },
+ /* Windows XP did not have a server version, but we need something here */
+ { 5, 1, "Windows XP", "Windows XP Server" },
+ { 5, 0, "Windows 2000 Professional", "Windows 2000 Server" },
+ /* Earlier versions are not supported by GetVersionEx(). */
+ { 0, 0, NULL, NULL }
+ };
+ memset(&info, 0, sizeof(info));
+ info.dwOSVersionInfoSize = sizeof(info);
+ if (! GetVersionEx((LPOSVERSIONINFO)&info)) {
+ strlcpy(uname_result, "Bizarre version of Windows where GetVersionEx"
+ " doesn't work.", sizeof(uname_result));
+ uname_result_is_set = 1;
+ return uname_result;
+ }
+#ifdef VER_NT_SERVER
+ if (info.wProductType == VER_NT_SERVER ||
+ info.wProductType == VER_NT_DOMAIN_CONTROLLER) {
+ is_server = 1;
+ } else {
+ is_client = 1;
+ }
+#endif /* defined(VER_NT_SERVER) */
+ /* Search the version table for a matching version */
+ for (i=0; win_version_table[i].major>0; ++i) {
+ if (win_version_table[i].major == info.dwMajorVersion &&
+ win_version_table[i].minor == info.dwMinorVersion) {
+ if (is_server) {
+ plat = win_version_table[i].server_version;
+ } else {
+ /* Use client versions for clients, and when we don't know if it
+ * is a client or a server. */
+ plat = win_version_table[i].client_version;
+ }
+ break;
+ }
+ }
+ if (plat) {
+ strlcpy(uname_result, plat, sizeof(uname_result));
+ } else {
+ if (info.dwMajorVersion > win_version_table[0].major ||
+ (info.dwMajorVersion == win_version_table[0].major &&
+ info.dwMinorVersion > win_version_table[0].minor))
+ tor_snprintf(uname_result, sizeof(uname_result),
+ "Very recent version of Windows [major=%d,minor=%d]",
+ (int)info.dwMajorVersion,(int)info.dwMinorVersion);
+ else
+ tor_snprintf(uname_result, sizeof(uname_result),
+ "Unrecognized version of Windows [major=%d,minor=%d]",
+ (int)info.dwMajorVersion,(int)info.dwMinorVersion);
+ }
+ /* Now append extra information to the name.
+ *
+ * Microsoft's API documentation says that on Windows 8.1 and later,
+ * GetVersionEx returns Windows 8 (6.2) for applications without an
+ * app compatibility manifest (including tor's default build).
+ *
+ * But in our testing, we have seen the actual Windows version on
+ * Windows Server 2012 R2, even without a manifest. */
+ if (info.dwMajorVersion > 6 ||
+ (info.dwMajorVersion == 6 && info.dwMinorVersion >= 2)) {
+ /* When GetVersionEx() returns Windows 8, the actual OS may be any
+ * later version. */
+ strlcat(uname_result, " [or later]", sizeof(uname_result));
+ }
+ /* When we don't know if the OS is a client or server version, we use
+ * the client version, and this qualifier. */
+ if (!is_server && !is_client) {
+ strlcat(uname_result, " [client or server]", sizeof(uname_result));
+ }
+#else /* !(defined(_WIN32)) */
+ /* LCOV_EXCL_START -- can't provoke uname failure */
+ strlcpy(uname_result, "Unknown platform", sizeof(uname_result));
+ /* LCOV_EXCL_STOP */
+#endif /* defined(_WIN32) */
+ }
+ uname_result_is_set = 1;
+ }
+ return uname_result;
+}
diff --git a/src/lib/osinfo/uname.h b/src/lib/osinfo/uname.h
new file mode 100644
index 0000000000..ef8cd078ee
--- /dev/null
+++ b/src/lib/osinfo/uname.h
@@ -0,0 +1,18 @@
+/* Copyright (c) 2003-2004, Roger Dingledine
+ * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
+ * Copyright (c) 2007-2018, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+/**
+ * \file uname.h
+ * \brief Header for uname.c
+ **/
+
+#ifndef HAVE_TOR_UNAME_H
+#define HAVE_TOR_UNAME_H
+
+#include "lib/testsupport/testsupport.h"
+
+MOCK_DECL(const char *, get_uname,(void));
+
+#endif
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