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Diffstat (limited to '')
| -rw-r--r-- | lib/uname.c | 268 |
1 files changed, 268 insertions, 0 deletions
diff --git a/lib/uname.c b/lib/uname.c new file mode 100644 index 0000000..d4778a8 --- /dev/null +++ b/lib/uname.c @@ -0,0 +1,268 @@ +/* uname replacement. + Copyright (C) 2009-2020 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. */ + +#include <config.h> + +/* Specification. */ +#include <sys/utsname.h> + +/* This file provides an implementation only for the native Windows API. */ +#if defined _WIN32 && ! defined __CYGWIN__ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <windows.h> + +/* Mingw headers don't have all the platform codes. */ +#ifndef VER_PLATFORM_WIN32_CE +# define VER_PLATFORM_WIN32_CE 3 +#endif + +/* Some headers don't have all the processor architecture codes. */ +#ifndef PROCESSOR_ARCHITECTURE_AMD64 +# define PROCESSOR_ARCHITECTURE_AMD64 9 +#endif +#ifndef PROCESSOR_ARCHITECTURE_IA32_ON_WIN64 +# define PROCESSOR_ARCHITECTURE_IA32_ON_WIN64 10 +#endif + +/* Mingw headers don't have the latest processor codes. */ +#ifndef PROCESSOR_AMD_X8664 +# define PROCESSOR_AMD_X8664 8664 +#endif + +int +uname (struct utsname *buf) +{ + OSVERSIONINFO version; + OSVERSIONINFOEX versionex; + BOOL have_versionex; /* indicates whether versionex is filled */ + const char *super_version; + + /* Preparation: Fill version and, if possible, also versionex. + But try to call GetVersionEx only once in the common case. */ + versionex.dwOSVersionInfoSize = sizeof (OSVERSIONINFOEX); + have_versionex = GetVersionEx ((OSVERSIONINFO *) &versionex); + if (have_versionex) + { + /* We know that OSVERSIONINFO is a subset of OSVERSIONINFOEX. */ + memcpy (&version, &versionex, sizeof (OSVERSIONINFO)); + } + else + { + version.dwOSVersionInfoSize = sizeof (OSVERSIONINFO); + if (!GetVersionEx (&version)) + abort (); + } + + /* Fill in nodename. */ + if (gethostname (buf->nodename, sizeof (buf->nodename)) < 0) + strcpy (buf->nodename, "localhost"); + + /* Determine major-major Windows version. */ + if (version.dwPlatformId == VER_PLATFORM_WIN32_NT) + { + /* Windows NT or newer. */ + super_version = "NT"; + } + else if (version.dwPlatformId == VER_PLATFORM_WIN32_CE) + { + /* Windows CE or Embedded CE. */ + super_version = "CE"; + } + else if (version.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS) + { + /* Windows 95/98/ME. */ + switch (version.dwMinorVersion) + { + case 0: + super_version = "95"; + break; + case 10: + super_version = "98"; + break; + case 90: + super_version = "ME"; + break; + default: + super_version = ""; + break; + } + } + else + super_version = ""; + + /* Fill in sysname. */ +#ifdef __MINGW32__ + /* Returns a string compatible with the MSYS uname.exe program, + so that no further changes are needed to GNU config.guess. + For example, + $ ./uname.exe -s => MINGW32_NT-5.1 + */ + sprintf (buf->sysname, "MINGW32_%s-%u.%u", super_version, + (unsigned int) version.dwMajorVersion, + (unsigned int) version.dwMinorVersion); +#else + sprintf (buf->sysname, "Windows%s", super_version); +#endif + + /* Fill in release, version. */ + /* The MSYS uname.exe programs uses strings from a modified Cygwin runtime: + $ ./uname.exe -r => 1.0.11(0.46/3/2) + $ ./uname.exe -v => 2008-08-25 23:40 + There is no point in imitating this behaviour. */ + if (version.dwPlatformId == VER_PLATFORM_WIN32_NT) + { + /* Windows NT or newer. */ + struct windows_version + { + int major; + int minor; + unsigned int server_offset; + const char *name; + }; + + /* Storing the workstation and server version names in a single + stream does not waste memory when they are the same. These + macros abstract the representation. VERSION1 is used if + version.wProductType does not matter, VERSION2 if it does. */ + #define VERSION1(major, minor, name) \ + { major, minor, 0, name } + #define VERSION2(major, minor, workstation, server) \ + { major, minor, sizeof workstation, workstation "\0" server } + static const struct windows_version versions[] = + { + VERSION2 (3, -1, "Windows NT Workstation", "Windows NT Server"), + VERSION2 (4, -1, "Windows NT Workstation", "Windows NT Server"), + VERSION1 (5, 0, "Windows 2000"), + VERSION1 (5, 1, "Windows XP"), + VERSION1 (5, 2, "Windows Server 2003"), + VERSION2 (6, 0, "Windows Vista", "Windows Server 2008"), + VERSION2 (6, 1, "Windows 7", "Windows Server 2008 R2"), + VERSION2 (-1, -1, "Windows", "Windows Server") + }; + const char *base; + const struct windows_version *v = versions; + + /* Find a version that matches ours. The last element is a + wildcard that always ends the loop. */ + while ((v->major != version.dwMajorVersion && v->major != -1) + || (v->minor != version.dwMinorVersion && v->minor != -1)) + v++; + + if (have_versionex && versionex.wProductType != VER_NT_WORKSTATION) + base = v->name + v->server_offset; + else + base = v->name; + if (v->major == -1 || v->minor == -1) + sprintf (buf->release, "%s %u.%u", + base, + (unsigned int) version.dwMajorVersion, + (unsigned int) version.dwMinorVersion); + else + strcpy (buf->release, base); + } + else if (version.dwPlatformId == VER_PLATFORM_WIN32_CE) + { + /* Windows CE or Embedded CE. */ + sprintf (buf->release, "Windows CE %u.%u", + (unsigned int) version.dwMajorVersion, + (unsigned int) version.dwMinorVersion); + } + else + { + /* Windows 95/98/ME. */ + sprintf (buf->release, "Windows %s", super_version); + } + strcpy (buf->version, version.szCSDVersion); + + /* Fill in machine. */ + { + SYSTEM_INFO info; + + GetSystemInfo (&info); + /* Check for Windows NT or CE, since the info.wProcessorLevel is + garbage on Windows 95. */ + if (version.dwPlatformId == VER_PLATFORM_WIN32_NT + || version.dwPlatformId == VER_PLATFORM_WIN32_CE) + { + /* Windows NT or newer, or Windows CE or Embedded CE. */ + switch (info.wProcessorArchitecture) + { + case PROCESSOR_ARCHITECTURE_AMD64: + strcpy (buf->machine, "x86_64"); + break; + case PROCESSOR_ARCHITECTURE_IA64: + strcpy (buf->machine, "ia64"); + break; + case PROCESSOR_ARCHITECTURE_INTEL: + strcpy (buf->machine, "i386"); + if (info.wProcessorLevel >= 3) + buf->machine[1] = + '0' + (info.wProcessorLevel <= 6 ? info.wProcessorLevel : 6); + break; + case PROCESSOR_ARCHITECTURE_IA32_ON_WIN64: + strcpy (buf->machine, "i686"); + break; + case PROCESSOR_ARCHITECTURE_MIPS: + strcpy (buf->machine, "mips"); + break; + case PROCESSOR_ARCHITECTURE_ALPHA: + case PROCESSOR_ARCHITECTURE_ALPHA64: + strcpy (buf->machine, "alpha"); + break; + case PROCESSOR_ARCHITECTURE_PPC: + strcpy (buf->machine, "powerpc"); + break; + case PROCESSOR_ARCHITECTURE_SHX: + strcpy (buf->machine, "sh"); + break; + case PROCESSOR_ARCHITECTURE_ARM: + strcpy (buf->machine, "arm"); + break; + default: + strcpy (buf->machine, "unknown"); + break; + } + } + else + { + /* Windows 95/98/ME. */ + switch (info.dwProcessorType) + { + case PROCESSOR_AMD_X8664: + strcpy (buf->machine, "x86_64"); + break; + case PROCESSOR_INTEL_IA64: + strcpy (buf->machine, "ia64"); + break; + default: + if (info.dwProcessorType % 100 == 86) + sprintf (buf->machine, "i%u", + (unsigned int) info.dwProcessorType); + else + strcpy (buf->machine, "unknown"); + break; + } + } + } + + return 0; +} + +#endif |