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      1 /*
      2  * dhcpcd - DHCP client daemon
      3  * Copyright (c) 2006-2010 Roy Marples <roy (at) marples.name>
      4  * All rights reserved
      5 
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     25  * SUCH DAMAGE.
     26  */
     27 
     28 #include <errno.h>
     29 #include <stdio.h>
     30 #include <string.h>
     31 
     32 #include "common.h"
     33 #include "platform.h"
     34 
     35 static const char *mproc =
     36 #if defined(__alpha__)
     37 	"system type"
     38 #elif defined(__arm__)
     39 	"Hardware"
     40 #elif defined(__avr32__)
     41 	"cpu family"
     42 #elif defined(__bfin__)
     43 	"BOARD Name"
     44 #elif defined(__cris__)
     45 	"cpu model"
     46 #elif defined(__frv__)
     47 	"System"
     48 #elif defined(__i386__) || defined(__x86_64__)
     49 	"vendor_id"
     50 #elif defined(__ia64__)
     51 	"vendor"
     52 #elif defined(__hppa__)
     53 	"model"
     54 #elif defined(__m68k__)
     55 	"MMU"
     56 #elif defined(__mips__)
     57 	"system type"
     58 #elif defined(__powerpc__) || defined(__powerpc64__)
     59 	"machine"
     60 #elif defined(__s390__) || defined(__s390x__)
     61 	"Manufacturer"
     62 #elif defined(__sh__)
     63 	"machine"
     64 #elif defined(sparc) || defined(__sparc__)
     65 	"cpu"
     66 #elif defined(__vax__)
     67 	"cpu"
     68 #else
     69 	NULL
     70 #endif
     71 	;
     72 
     73 char *
     74 hardware_platform(void)
     75 {
     76 	FILE *fp;
     77 	char *buf, *p;
     78 
     79 	if (mproc == NULL) {
     80 		errno = EINVAL;
     81 		return NULL;
     82 	}
     83 
     84 	fp = fopen("/proc/cpuinfo", "r");
     85 	if (fp == NULL)
     86 		return NULL;
     87 
     88 	p = NULL;
     89 	while ((buf = get_line(fp))) {
     90 		if (strncmp(buf, mproc, strlen(mproc)) == 0) {
     91 			p = strchr(buf, ':');
     92 			if (p != NULL && ++p != NULL) {
     93 				while (*p == ' ')
     94 					p++;
     95 				break;
     96 			}
     97 		}
     98 	}
     99 	fclose(fp);
    100 
    101 	if (p == NULL)
    102 		errno = ESRCH;
    103 	return p;
    104 }
    105