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/*
* Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Hyra nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#define CPUID(level, a, b, c, d) \
__ASMV("cpuid\n\t" \
: "=a" (a), "=b" (b), "=c" (c), "=d" (d) \
: "0" (level))
#define ASCII_ART \
" ____ \n" \
" | \\__\\ user: %s\n" \
" | /\\ \\ OS: Hyra/amd64 v"_OSVER"\n" \
" |/ \\ \\ arch: "_OSARCH"\n" \
" \\ R. \\ \\ cpu: %s\n" \
" \\ I. \\ \\\n"
/*
* Get the processor brand string
*
* @buffer: Buffer to copy branch string
*
* Returns a pointer to newly allocated memory
* containing the vendor string. One must ensure
* to call free() after use.
*/
static char *
get_brand(void)
{
uint32_t eax, ebx, ecx, edx;
uint32_t regs[12];
char buf[sizeof(regs) + 1];
char *p = buf;
/* Can we even get the brand? */
CPUID(0x80000000, eax, ebx, ecx, edx);
if (eax < 0x80000004) {
return NULL;
}
CPUID(0x80000002, regs[0], regs[1], regs[2], regs[3]);
CPUID(0x80000003, regs[4], regs[5], regs[6], regs[7]);
CPUID(0x80000004, regs[8], regs[9], regs[10], regs[11]);
/* Log it */
memcpy(p, regs, sizeof(regs));
buf[sizeof(regs)] = '\0';
/* Strip away leading whitespaces */
for (int i = 0; i < sizeof(buf); ++i) {
if (buf[i] == ' ') {
++p;
} else {
break;
}
}
return strdup(p);
}
int
main(void)
{
char *brand = get_brand();
if (brand == NULL) {
brand = strdup("unknown");
}
printf(ASCII_ART, getlogin(), brand);
free(brand);
return 0;
}
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