Fordi
Group: Members
Posts: 90
Joined: April 2004 |
 |
Posted: Dec. 24 2004,01:14 |
 |
Ok, it took a bit of doing, but I got cbagger01's last suggestion in.
| Code Sample | Changes to linuxrc:
------LINE 529, inserting 27 lines:
# last ditch - try to mount KNOPPIX ci file from /dev/hda
if test -n "$FOUND_KNOPPIX"
then
else
QEMU=""
echo
echo "${BLUE}Guess you're running from QEMU${NORMAL}"
echo "${BLUE}Performing last-ditch effort to get KNOPPIX image${NORMAL}"
# try to mount /dev/hda as a cloop
echo "0" > /proc/sys/kernel/printk
$INSMOD modules/cloop.o file=/dev/hda >/dev/null 2>&1
if mount -t iso9660 /dev/cloop /KNOPPIX >/dev/null 2>&1
then
FOUND_KNOPPIX="/dev/hda"
QEMU="TRUE"
echo "${GREEN}Success!${NORMAL}"
else
# try one more time, this time directly trying to mount /dev/hda
if mount -t iso9660 /dev/hda /KNOPPIX >/dev/null 2>&1
then
FOUND_KNOPPIX="/dev/hda"
QEMU="TRUE"
echo "${GREEN}Success!${NORMAL}"
else
echo "${RED}Failed..."
fi
fi
fi
------LINE 673, replacing 8 lines:
rm -rf /etc/ftpusers /etc/passwd /etc/shadow /etc/shadow- /etc/group \
/etc/ppp /etc/isdn /etc/ssh /etc/ioctl.save \
/etc/inittab /etc/network /etc/sudoers \
/etc/init /etc/localtime /etc/dhcpc /etc/pnm2ppa.conf /etc/hosts 2>/dev/null
cp -a /KNOPPIX/etc/ftpusers /KNOPPIX/etc/passwd /KNOPPIX/etc/shadow /KNOPPIX/etc/shadow- /KNOPPIX/etc/group \
/KNOPPIX/etc/ppp /KNOPPIX/etc/isdn /KNOPPIX/etc/ssh \
/KNOPPIX/etc/inittab /KNOPPIX/etc/network /KNOPPIX/etc/sudoers \
/KNOPPIX/sbin/init /KNOPPIX/etc/dhcpc /KNOPPIX/etc/hosts /etc/ 2>/dev/null
------LINE 689, inserting 10 lines
# Hey, we're in QEMU! Let's get all cozy with the host, shall we?
if test -n "$QEMU"
then
HNAME=$(echo $CMDLINE | /usr/bin/tr ' ' '\n' | /bin/sed -n '/sysname=/s/.*=//p' | /usr/bin/tail -1)
HIP=$(echo $CMDLINE | /usr/bin/tr ' ' '\n' | /bin/sed -n '/sysip=/s/.*=//p' | /usr/bin/tail -1)
echo
echo "${BLUE}QEMU Host is ${MAGENTA}${HNAME}${BLUE} at IP ${MAGENTA}${HIP}${NORMAL}"
echo "${HIP} ${HNAME}" >> /etc/hosts
echo "${HIP} syshost" >>/etc/hosts
fi |
| Code Sample | Listing of rq.c
#include <winsock.h>
#include <shellapi.h>
int doit();
int doit(char* res)
{
WSADATA wsaData;
if (WSAStartup(MAKEWORD(1, 1), &wsaData) != 0) {
return 255;
}
int i=0;
char ac[80];
char ip[16];
if (gethostname(ac, sizeof(ac)) == SOCKET_ERROR) {
printf("Error %d when getting local host name\r\n", WSAGetLastError());
return 1;
}
struct hostent *phe = gethostbyname(ac);
if (phe == 0) {
printf("Yow! Bad host lookup!\r\n");
return 1;
}
struct in_addr addr;
memcpy(&addr, phe->h_addr_list[i], sizeof(struct in_addr));
sprintf(res, "sysname=%s sysip=%s", ac, inet_ntoa(addr));
WSACleanup();
return 0;
}
int main(int argc, char *argv[])
{
char hostip[95];
char* temp;
int retval = doit(hostip);
temp=malloc(1024);
sprintf(temp, "-kernel isolinux/linux24 -initrd isolinux/minirt24.gz -hda KNOPPIX/KNOPPIX -L qemu -append \"sb=0x220,5,1,5 vga=789 %s\"", &hostip[0]);
ShellExecute(NULL, NULL, "qemu/qemu.exe", temp, NULL, SW_SHOW);
free(temp);
return retval;
} |
compile that thusly (using mingw):
| Code Sample | gcc -O2 rq.c -o rq.exe -lshell32 -lwsock32
strip rq.exe
upx -9 rq.exe |
It should come out to 3584 bytes.
| Code Sample | listing of autorun.inf
[autorun]
open=rq.exe |
Ok, now that I've posted all that, what it does:
It allows QEMU to communicate with the host PC via either it's known hostname ("punquin" in my case) or by "syshost". You see the append line has also changed to include a definition of the emulated SB card. I haven't tested this (I'm doing my tests from my work (WinXP) computer via rdesktop, and while textmode works fine, using a mouse is a highly wonky). Still, seeing as the SB card isn't working at all without that line, it can't hurt to throw it in.
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