First commit to SVN.

git-svn-id: svn://svn.autonomy.net.au/python-dmidecode@1 abc39116-655e-4be6-ad55-d661dc543056

1 files changed, 212 insertions, 0 deletions

diff --git a/ownership.c b/ownership.c
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index 0000000..29b9850
--- /dev/null
+++ b/ownership.c
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+/*
+ * Compaq Ownership Tag
+ *
+ *   (C) 2003-2005 Jean Delvare <khali@linux-fr.org>
+ *
+ *   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 2 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, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ *   For the avoidance of doubt the "preferred form" of this code is one which
+ *   is in an open unpatent encumbered format. Where cryptographic key signing
+ *   forms part of the process of creating an executable the information
+ *   including keys needed to generate an equivalently functional executable
+ *   are deemed to be part of the source code.
+ *
+ * References:
+ *  - Compaq "Technical Reference Guide for Compaq Deskpro 4000 and 6000"
+ *    First Edition
+ *    http://h18000.www1.hp.com/support/techpubs/technical_reference_guides/113a1097.html
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <getopt.h>
+
+#include "version.h"
+#include "config.h"
+#include "types.h"
+#include "util.h"
+
+/* Options are global */
+struct opt
+{
+	const char* devmem;
+	unsigned int flags;
+};
+static struct opt opt;
+
+#define FLAG_VERSION            (1<<0)
+#define FLAG_HELP               (1<<1)
+
+static void ownership(u32 base, const char *pname, const char *devmem)
+{
+	u8 *buf;
+	int i;
+
+	/* read the ownership tag */
+	if((buf=mem_chunk(base, 0x51, devmem))==NULL)
+	{
+		perror(pname);
+		return;
+	}
+	
+	/* chop the trailing garbage */
+	i=0x4f;
+	while(i>=0 && (buf[i]==0x20 || buf[i]==0x00))
+		i--;
+	buf[i+1]='\0';
+	
+	/* filter and print */
+	if(i>=0)
+	{
+		for(; i>=0; i--)
+		{
+			if(buf[i]<32 || (buf[i]>=127 && buf[i]<160))
+				buf[i]='?';
+		}
+		printf("%s\n", (char *)buf);
+	}
+
+	free(buf);
+}
+
+static u32 decode(const u8 *p)
+{
+	int i;
+
+	/* integrity checking (lack of checksum) */
+	for(i=0; i<p[4]; i++)
+	{
+		if(p[5+i*10]!='$' || !(p[6+i*10]>='A' && p[6+i*10]<='Z')
+			|| !(p[7+i*10]>='A' && p[7+i*10]<='Z')
+			|| !(p[8+i*10]>='A' && p[8+i*10]<='Z'))
+		{
+			printf("\t Abnormal Entry! Please report. [%02x %02x %02x %02x]\n",
+				p[5+i*10], p[6+i*10], p[7+i*10], p[8+i*10]);
+			return 0;
+		}
+	}
+	
+	/* search for the right entry */
+	for(i=0; i<p[4]; i++)
+		if(memcmp(p+5+i*10, "$ERB", 4)==0)
+			return DWORD(p+9+i*10);
+	
+	return 0;
+}
+
+/* Return -1 on error, 0 on success */
+static int parse_command_line(int argc, char * const argv[])
+{
+	int option;
+	const char *optstring = "d:hV";
+	struct option longopts[]={
+		{ "dev-mem", required_argument, NULL, 'd' },
+		{ "help", no_argument, NULL, 'h' },
+		{ "version", no_argument, NULL, 'V' },
+		{ 0, 0, 0, 0 }
+	};
+
+	while((option=getopt_long(argc, argv, optstring, longopts, NULL))!=-1)
+		switch(option)
+		{
+			case 'd':
+				opt.devmem=optarg;
+				break;
+			case 'h':
+				opt.flags|=FLAG_HELP;
+				break;
+			case 'V':
+				opt.flags|=FLAG_VERSION;
+				break;
+			case '?':
+				return -1;
+		}
+
+	return 0;
+}
+
+static void print_help(void)
+{
+	static const char *help=
+		"Usage: ownership [OPTIONS]\n"
+		"Options are:\n"
+		" -d, --dev-mem FILE     Read memory from device FILE (default: " DEFAULT_MEM_DEV ")\n"
+		" -h, --help             Display this help text and exit\n"
+		" -V, --version          Display the version and exit\n";
+	
+	printf("%s", help);
+}
+
+int main(int argc, char * const argv[])
+{
+	u8 *buf;
+	off_t fp;
+	int ok=0;
+	
+	if(sizeof(u8)!=1 || sizeof(u32)!=4)
+	{
+		fprintf(stderr, "%s: compiler incompatibility\n", argv[0]);
+		exit(255);
+	}
+
+	/* Set default option values */
+	opt.devmem=DEFAULT_MEM_DEV;
+	opt.flags=0;
+
+	if(parse_command_line(argc, argv)<0)
+		exit(2);
+
+	if(opt.flags & FLAG_HELP)
+	{
+		print_help();
+		return 0;
+	}
+
+	if(opt.flags & FLAG_VERSION)
+	{
+		printf("%s\n", VERSION);
+		return 0;
+	}
+	
+	if((buf=mem_chunk(0xE0000, 0x20000, opt.devmem))==NULL)
+		exit(1);
+
+	for(fp=0; !ok && fp<=0x1FFF0; fp+=16)
+	{
+		u8 *p=buf+fp;
+
+		if(memcmp((char *)p, "32OS", 4)==0)
+		{
+			off_t len=p[4]*10+5;
+
+			if(fp+len-1<=0x1FFFF)
+			{
+				u32 base;
+				
+				if((base=decode(p)))
+				{
+					ok=1;
+					ownership(base, argv[0], opt.devmem);
+				}
+			}
+		}
+	}
+	
+	free(buf);
+	
+	return 0;
+}