-
Simon McVittie authored
Signed-off-by:
Simon McVittie <smcv@collabora.com>
Simon McVittie authoredSigned-off-by:
Simon McVittie <smcv@collabora.com>
check-requirements.c 4.93 KiB
/*
* Copyright © 2020 Collabora Ltd.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* Perform some checks to ensure that the Steam client requirements are met.
* Output a human-readable message on stdout if the current system does not
* meet every requirement.
*/
#include <steam-runtime-tools/steam-runtime-tools.h>
#include <errno.h>
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include <unistd.h>
#include <glib.h>
#include <glib-object.h>
#include <steam-runtime-tools/utils-internal.h>
#define X86_FEATURES_REQUIRED (SRT_X86_FEATURE_X86_64 \
| SRT_X86_FEATURE_CMPXCHG16B \
| SRT_X86_FEATURE_SSE3)
enum
{
OPTION_HELP = 1,
OPTION_VERSION,
};
struct option long_options[] =
{
{ "version", no_argument, NULL, OPTION_VERSION },
{ "help", no_argument, NULL, OPTION_HELP },
{ NULL, 0, NULL, 0 }
};
static void usage (int code) __attribute__((__noreturn__));
/*
* Print usage information and exit with status @code.
*/
static void
usage (int code)
{
FILE *fp;
if (code == 0)
fp = stdout;
else
fp = stderr;
fprintf (fp, "Usage: %s [OPTIONS]\n",
program_invocation_short_name);
exit (code);
}
static gboolean
check_x86_features (SrtX86FeatureFlags features)
{
return ((features & X86_FEATURES_REQUIRED) == X86_FEATURES_REQUIRED);
}
int
main (int argc,
char **argv)
{
FILE *original_stdout = NULL;
GError *error = NULL;
SrtSystemInfo *info;
SrtX86FeatureFlags x86_features = SRT_X86_FEATURE_NONE;
const gchar *output = NULL;
gchar *version = NULL;
int opt;
int exit_code = EXIT_SUCCESS;
_srt_setenv_disable_gio_modules ();
while ((opt = getopt_long (argc, argv, "", long_options, NULL)) != -1)
{
switch (opt)
{
case OPTION_VERSION:
/* Output version number as YAML for machine-readability,
* inspired by `ostree --version` and `docker version` */
printf (
"%s:\n"
" Package: steam-runtime-tools\n"
" Version: %s\n",
argv[0], VERSION);
return EXIT_SUCCESS;
case OPTION_HELP:
usage (0);
break;
case '?':
default:
usage (EX_USAGE);
break; /* not reached */
}
}
if (optind != argc)
usage (EX_USAGE);
/* stdout is reserved for machine-readable output, so avoid having
* things like g_debug() pollute it. */
original_stdout = _srt_divert_stdout_to_stderr (&error);
if (original_stdout == NULL)
{
g_warning ("%s", error->message);
g_clear_error (&error);
return EXIT_FAILURE;
}
_srt_unblock_signals ();
info = srt_system_info_new (NULL);
/* This might be required for unit testing */
srt_system_info_set_sysroot (info, g_getenv ("SRT_TEST_SYSROOT"));
x86_features = srt_system_info_get_x86_features (info);
if (!check_x86_features (x86_features))
{
output = "Sorry, this computer's CPU is too old to run Steam.\n"
"\nSteam requires at least an Intel Pentium 4 or AMD Opteron, with the following features:\n"
"\t- x86-64 (AMD64) instruction set (lm in /proc/cpuinfo flags)\n"
"\t- CMPXCHG16B instruction support (cx16 in /proc/cpuinfo flags)\n"
"\t- SSE3 instruction support (pni in /proc/cpuinfo flags)\n";
exit_code = EX_OSERR;
goto out;
}
out:
if (output != NULL)
{
if (fputs (output, original_stdout) < 0)
g_warning ("Unable to write output: %s", g_strerror (errno));
if (fputs ("\n", original_stdout) < 0)
g_warning ("Unable to write final newline: %s", g_strerror (errno));
}
if (fclose (original_stdout) != 0)
g_warning ("Unable to close stdout: %s", g_strerror (errno));
g_object_unref (info);
g_free (version);
return exit_code;
}