rename usage() to zcip_usage, make struct arp_packet static. This applet is
not ISO C89 compatible due to the use of C99-style comments ("c++ comments).
* coreutils.h: remove prototype of non-existing xgetoptfile_sort_uniq
and add boilerplate.
* networking/{ipaddr,ip,iplink,iproute,iptunnel}.c: touch includes
and use short boilerplate.
* libiproute/iproute.c: rename round to avoid clashes with older
SuSE gcc and use short boilerplate.
- new bb_getopt_ulflags features: check max and min args, convert first argv to options special for ar and tar applets
- use bb_default_error_retval for env applet
Ping packets sent by busybox have wrong endian on f.x. mips32 (openwrt). Attatched is a patch that
uses htons() and ntohs() to be platform independent.
infrastructure, the compiler isn't smart enough to replace const static
int with the constant, and allocates space for each set of them,
bloating the executable something fierce. Oops.
So now, we #define ENABLE_XXX to 0 or 1 for each CONFIG_XXX (which
is still there so the 1000+ #ifdef/#ifndef tests don't have to be
replaced wholesale). Changed the test instance in networking/ifconfig.c
to use this.
Rob Landley, and others.
Currently CONFIG options are defined or undefined, so we chop out code with
#ifdefs, ala:
#ifdef CONFIG_THING
stuff();
#endif
This creates a new header file, bb_config.h, which sets the CONFIG entry to 1
or 0, and lets us do:
if(CONFIG_THING) stuff();
And let the compiler do dead code elimination to get rid of it. (Note: #ifdef
will still work because for the 1 case it's a static const int, not a #define.)
We were seeing some timeouts when getting files with the busybox tftp
client.
With tcpdump, we saw that the tftp client was receiving blocks and
ack'ing them, but the server was failing to receive the occasional
ack.
When that happened, the server would send the last block over again,
but the tftp client was expecting the next block.
This patch allows the client to recover from this situation
(it sends an ack for the repeat block but does not write it
to the local file).
I hope it meets your approval, please don't hesitate to send
me comments for improvement.
The patch is against "head" in svn, I tested it on an older version
of busybox in our environment. It applied cleanly to the older
version.
Credit for this goes to my co-worker John McCarthy for finding
it and me for fixing it (assuming it works for everyone else too).
cheerio,
bjb
To: busybox@mail.codepoet.org
Wrap sockaddr_in6 in a ifdef CONFIG_FEATURE_IPV6.
Include sys/types.h instead of asm/types.h.
Include netinet/if_ether.h instead of linux/if_ether.h
The ioctl request argument is an int, not an unsigned short.
> Hi,
> this is a first attempt of size optimization for zcip taking into account all
> the hints given so far on the list.
> I've applied just the more obvious busyboxifications so maybe it could be
> optimized more.
BTW: I've ripped out a lot of debug code and changed c++ // comments to /* */
as both were rather confusing for a newbie like me. ;-)
Sorry to the author for that.
I know that this makes mantaining the code easier, but I'm simple minded....
Hello,
Here's a patch for a first attempt at static leases for udhcpd.
Included in the tarball are 2 files (static_leases.c, static_leases.h)
and a patch against the latest cvs.
In the config file you can configure static leases with the following
format:
static_lease 00:60:08:11:CE:4E 192.168.0.54
static_lease 00:60:08:11:CE:3E 192.168.0.44
Comments/suggestions/improvements are welcome.
Wade
>I also don't mean to disagree about leaving 30x status codes until after
>1.0. In fact, although redirecting http://host/dir to http://host/dir/
>with a 301 is common practice (e.g. Apache, IIS), AFAIK it isn't
>actually required (or mentioned) by the HTTP specs.
Ok.
Attached patch have 302 and 408 implemented features.
--w
vodz
Hi!
I've created a patch to busybox' build system to allow building it in
separate tree in a manner similar to kbuild from kernel version 2.6.
That is, one runs command like
'make O=/build/some/where/for/specific/target/and/options'
and everything is built in this exact directory, provided that it exists.
I understand that applyingc such invasive changes during 'release
candidates' stage of development is at best unwise. So, i'm currently
asking for comments about this patch, starting from whether such thing
is needed at all to whether it coded properly.
'make check' should work now, and one make creates Makefile in build
directory, so one can run 'make' in build directory after that.
One possible caveat is that if we build in some directory other than
source one, the source directory should be 'distclean'ed first.
egor
Ming-Ching,
>>No. Here there are no mistakes.
>>You using POST metod.
>>For get data you should read from stdin CONTENT_LENGTH bytes.
>Hower as I posted a little while ago, there is indeed a bug
>in POST method if the CONTENT_LENGTH is bigger
>than sizeof(wbuf[128]). So if your CGI script is expecting to
>read the full CONTENT_LENGTH, it might block forever,
>because it will only transfer sizeof(wbuf) to the CGI.
Ok, Ok. I should find time to understand with a problem.
Try attached patch.
--w
vodz
"I have a need to _really_ know if the interface was properly configured
via ifup so I made busybox's ifupdown pass the return codes through rather
than dropping them on the floor."
"All the functions in ifupdown.c return 1 on success and 0 on failure
(which happens to the opposite of standard practices but whatever).
So it is important for all these functions to not blindly return 1."
"The problem with blindly returning ret, even if it is != 1, is the
callers expect a 0 or 1 and accumulate the return codes. So a function that
makes 3 calls to execute will have a value of 3 accumulated. That value
of 1 (success) was almost always returned even if 1 of the commands in the
command sequence failed. The attached patch fixes the lack of checking
to verify thar result == expected_reult."
Hi,
Package: BusyBox
Version: 1.0.0-pre10
When an incomplete read or write from/to a local file occurs (i.e.
not an EOF condition), the tftp client prematurely exits. This
problem can be reproduced by slowly piping data to the tftp client
like this:
(for v in 1 2 3; do echo $v; sleep 1; done) | \
tftp -p -l - -r output.txt <host>
The output file on the TFTP server will contain "1".
The attached patch provides a possible solution to this problem.
I can reproduce this on ARM sa1110 and ARM xscale boards, both
running Linux-2.6.4 & glibc-2.3.2. Thanks for the wonderful
program!
Robin
On Sat, Jun 19, 2004 at 10:57:37PM +0200, Bastian Blank wrote:
> The following patch changes klogd to use openlog/syslog themself
> instead of calling syslog_msg which always calls the triple
> openlog/syslog/closelog.
Updated patch: get rid of syslog_msg entirely. Request from Erik Andersen.
Bastian
Package: BusyBox
Version: 1.0.0-pre10
Passing the -q <integer> option to inetd causes it to dereference an
invalid pointer (optarg). The attached patch provides a fix to this
problem.
Robin
Hello,
Last November a bug was found in iproute. CAN-2003-0856 has more information.
Basically, netlink packets can come from any user. If a program performs action
based on netlink packets, they must be examined to make sure they came from the
place they are expected (the kernel).
Attached is a patch against pre8. Please apply this before releasing 1.00 final.
All users of busy box may be vulnerable to local attacks without it.
Best Regards,
Steve Grubb
Hi,
the following output is from BusyBox 1.0.0-pre10:
~ # ip link help
ip: Command "help" is unknown, try "ip link help".
tk
This patch fixes it by removing the advertisements for
the "ip blah help" stuff that is not implemented.
This is a bulk spelling fix patch against busybox-1.00-pre10.
If anyone gets a corrupted copy (and cares), let me know and
I will make alternate arrangements.
Erik - please apply.
Authors - please check that I didn't corrupt any meaning.
Package importers - see if any of these changes should be
passed to the upstream authors.
I glossed over lots of sloppy capitalizations, missing apostrophes,
mixed American/British spellings, and German-style compound words.
What is "pretect redefined for test" in cmdedit.c?
Good luck on the 1.00 release!
- Larry
In arpping.h, fix structure alignment of "struct arpMsg".
GCC can insert padding in the structure which causes udhcpd to send an
invalid ARP packet on the network. It will then not receive a valid
reply, which can cause it to assign an IP address that's already in use
on the network.
(With kernels before 2.4.20, the "struct ethhdr" in linux/if_ether.h
wasn't marked as packed. This is also an issue if your toolchain was
built with a pre-2.4.20 kernel).
Hi,
When downloading files over slow network (e.g. wireless/
internet) using IE, sometimes it will stop downloading and
show error message 'connection closed' when the download
is almost complete. This is because IE can't handle server
close connection properly.
Apache http_main.c fix this problem by close the connection
after client close the connection. This patch do exactly the
same thing. Please consider include this patch.
Joe.C
Hi,
Well, I made this patch a long time ago (08/2002) because it was a
need of a project, but had no time to send it to you. It adds support
to `autologin' option of the telnet protocol. It has been used since
made with busybox 0.60.3 at production and I had no problems with it.
I have ported it to the HEAD revision of the CVS server (20040211) and
I hope you enjoy and apply it to the official sources. :)
Thanks a lot!
The config file processing for inetd in busybox-1.00-pre7 and newer
is broken -- the saved command argv[] values overwrite each other.
Patch to fix it is attached.
Cheers
--
Mark Lord
Real-Time Remedies Inc.
Hi,
When httpd connection is closed, bosybox httpd will
not stop reading from CGI program. This patch fix this
problem. It check the return value of bb_full_write and
stop reading from CGI if the connection is closed.
Please apply this patch.
Joe.C
uuencode fails to encode binary data because it right-shifts
bytes as signed chars and keeps the duplicated sign bits.
The original base64_encode() from wget/http.c is broken as well,
but it is only used to encode ascii data.
-- Pascal
function as there is no gracefull way of handling failures.
Rename bb_getport to bb_lookup_port, allow a default port to be
specified so it always returns a correct value.
Modify ftpgetput/rdate/wget to use the new interface.
wget/rdate now use etc/services with a falback default value.
Another issue I found was with the iproute utility. While using another
program I found that it failed because the "ip route del" command was
not found. I looked at the full iproute implementation and this command
exists. The busybox version has the "ip route delete" command. I have
created a patch which makes the "ip route del" command an alias to the
"ip route delete" command.
Hello,
I have been using busybox for some time now, for an ARM based platform.
I was very pleased when I tried the 1.00preX series, with all the new
utilities and daemons.
I found out that the ifupdown in busybox does not behave exaclty like
the debian version. Then the pre-up script fails, the interface is
getting up. Also when the post-up script fails the return value is
ignored. Actually everything is always run and the return value is
always true. I looked at the original implementation from debian and
fixed the busybox version to do the same. A patch is attached if anyone
is interested.
archive_xread can be replaced with bb_full_read, and archive_copy_file
with bb_copyfd*
bb_copyfd is split into two functions bb_copyfd_size and bb_copyfd_eof,
they share a common backend.
I noticed a problem with ifconfig in busybox 0.60.5. The matching code
seems to exist in busybox CVS as well, so I'll paste in the patch that
fixed it.
I was running:
# ifconfig wan0 1.2.3.4 pointopoint 1.2.3.5 netmask 255.255.255.255
I was seeing the inet addr and P-t-P addr both being set to 1.2.3.5
(the pointopoint address).
wan0 Link encap:Point-Point Protocol
inet addr:1.2.3.5 P-t-P:1.2.3.5 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MTU:1500 Metric:1
...
The patch below seems to fix it.
hello
i had some trouble with the filedescriptor in udhcp.
Two things happened on my device:
1.) broken or not connected cable (no dhcp-server)
2.) daemonizing (starting with option -b)
i got a filedescriptor fd=0 from function raw_socket,
after daemonizing (daemon call) the fd is closed.
Client can't recieve data's anymore.
i fixed this problem (like pidfile handling):
in order to fix the problems with round robin DNS reported
by Andrew Flegg:
http://busybox.net/lists/busybox/2003-October/009579.html
This removes the ipv6 specific xconnect dns lookups. I do
not see why that would need to be special cased for ipv6 as
was done, but that will just have to be tested.
So IPV6 people -- please test this change!
-Erik
the busybox menuconfig triggered my "inacceptable number of spelling mistakes"
upper level, so I decided to make a patch ;-)
I also improved some wording to describe some things in a better way.
Many thanks for an incredible piece of software!
Andreas Mohr, random OSS developer
- env vars CONTENT_TYPE, CONTENT_LENGTH, HTTPD_REFERER, REMOTE_USER and
AUTH_TYPE(Basic always).
- POST data pipied now (previous version have loading into memory may be
big size data and reducing with hardcoded limit)
- removed $CGI_foo environment variables, else my have rubbish
enviroment if POST data have big binary file
- Can`t use 255.255.255.255 address
- typo: double check for valid ip address and uncheck for valid mask
httpd unseted SERVER_PORT (my bug from last_patch111).
last_patch_112 from Vladimir N. Oleynik
On Thu, 2003-09-11 at 01:09, Glenn McGrath wrote:
> Applied
Thanks. Unfortunately there was one small bug in that last patch.
Could you apply this one as well?
p.
Busybox`s httpd have the defect (from born):
ip 1.2.3.1 have true comparing also with
1.2.3.10-1.2.3.19 and 1.2.3.100-1.2.3.199.
Last patch removed this bug and added feature:
allow/deny rule can support network/netmask
example: 1.2.3.0/255.255.255.128
or
network/mask_bits
example: 1.2.3.0/25
now; old format
1
1.2
1.2.3
1.2.3.4
too support and converted to
1/8 1.2/16 1.2.3/24 1.2.3.4/32
automaticaly.
Also, current CVS have small problem: ignores
A:IP, (loses 'A', 'a' only work). Corrected.
of netmasks. It also fixes the parameters for network and netmask to match
that of the official Red Hat version (-n for network and -m for netmask).
Patch by Joshua Jackson
the arguments it consumed, which means the calling function encountered
them as well. As a result, a command like "ip -6 addr" was yielding a usage
error." - Philip Blundell
response sent in chunked transfer encoding, the code path to
resubmit the request to the redirected URL forgets to reset
got_clen and chunked variables in the loop. If the redirected
URL does not use chunked transfer encoding, this causes the code
that slurps the body of the response to incorrectly try to parse
out the chunk length which does not exist." - junkio@
----------------------------------------------------------------------
always told to read sizeof(buf). This waits until the underlying
fread() to time-out for the last part of the downloaded body. Fix
this by sending the number of remaining bytes to read when known." -
junkio@
I reworked the logic in his patch
The attached patch adds "mtu" and "hwaddress" to the inet6 method and
"mtu", "hwaddr" and "pointopoint" to the inet4 method (just like in
the ifupdown part).
Note: "hwaddress" can't be used with the busybox ip applet (this
function isn't implemented in bb ip yet), but it can be of use with
an external "full blown" ip package.
The patch also removes "label" from the loopback configuration,
labels (subinterfaces) aren't used with loopback interfaces.
It further solves a problem in the bootp method, "ifconfig down
%interface%" should be "ifconfig %interface% down" and it's now also
possible to use ip with bootp.
The patch is fully tested with both busybox ip and "stand-alone" ip
and I didn't saw any problems.
The recent changes in ifupdown where all calls to 'ip link set' and
'ip addr set' are swapped give some problems with v4tunnels.
For plain ipv4 and ipv6 interfaces it works correct, other methods
not tried. The patch below change the behaviour back for v4tunnels
only.
Without the patch the following errors are shown:
RTNETLINK answers: Network is down
RTNETLINK answers: No route to host
and the tunnel is not fully brought up
With this patch all works as expected.
this patch fixes run_parts when it's called by ifupdown. 1) argv has to be a
NULL terminated char* array, not just a string. 2) run_parts now explicitly
sets the environment. this environment is populated from the
/etc/network/interfaces config file and is needed by the scripts in
/etc/network/if-pre-up.d/. when run-parts is called from the command line the
environment is taken from the current process.
Vladimir Oleynik then wrote:
You can simplify this if use:
+ bb_xasprintf(&buf[0], "/etc/network/if-%s.d", opt);
+ buf[1] = NULL;
+
+ run_parts(&buf, 2, environ);
+ free(buf[0]);
--w
vodz
Hi.
Last patch have new libbb function
vfork_rexec() for can use daemon() to uClinux system.
This patched daemons: syslog, klogd, inetd, crond.
This not tested! I havn`t this systems.
Also. Previous patch for feature request MD5 crypt password for
httpd don`t sended to this mailist on 07/15/03
(mailist have Pytom module problem?).
The previous patch included, and have testing.
--w
vodz
Hello all,
This patch adds more "Help" text to the config system. Almost
all applets now have a help entry. Also, I cleaned up the spacing of
the existing text so that things are consistent. This patch is against
this morning's CVS.
Thomas Cameron
CEI Systems, Inc.
This patch fixes endian problems with get_netmask(). I don't know if
this is the cleanest solution, but it makes 'ipcalc -n' work on both
an i386 system and a ppc system.
Erik, et al.
The attached patch makes the following changes to networking/ifupdown.c:
(1) It swaps all calls to 'ip link set' and 'ip addr set'. This solves
two problems:
(a) Calling 'ip link set <dev> up' before assigning an address
generates an error message, and
(b) Under User Mode Linux, running in with ethernet interfaces
in daemon mode, the MAC address for an interface is selected
based on the IP address assigned to that interface. If the
interface is brought up before being assigned an IP address,
it gets a null MAC.
(2) It further cleans up run_mapping().
This patch is against ifupdown.c revision 1.25.
-- Lars
Hello, I think the test for an unconfigured httpd is wrong in
the CVS (busybox-unstable-20030620.tar.bz2)
flg_deny_all is default 0
vodz then wrote:
Oops. You are right.
Also, this mistake haved from two place.
Last patch rewroted to my new get_ularg() function for overcompensate size
from this error found ;-)
I'm building BusyBox using a development kit for MontaVista Hardhat Linux
(PPC) -- which, at least in this instance, is based around kernel 2.2.14.
I've had to massage a few files in networking/libiproute/ to make it
compile. Specifically:
(1) Added a #include <sys/uio.h> for the iovec structure in
libnetlink.c,
(2) Put ifdefs in ll_types.c and ll_proto.c around various
constants (ETH_P_xxx and ARPHRD_xxx) that weren't defined,
(3) Make do_changename() in iplink.c require a kernel >=
2.4.0 -- the ifr structure in my environment doesn't
have the ifr_name attribute. I've assumed this is
a kernel dependency -- let me know if I ought to be
checking something else.
In the absence of the correct kernel, do_changename()
always returns 0.
Attached is a patch against the current CVS that will make these changes.
-- Lars
The attached patch fixes a compilation error. If you compile ping6 without
the CONFIG_FEATURE_FANCY_PING6 option then the compile will fail without this
patch.
- more comments
- larger allowed number of CGI script variables
- ifdefs for regression test hooks
- default to ./ rather than /www (if unspecified) for compatibility with
earlier versions.
- Allow ip: as a synomym for A: rules for compatibility with earlier
versions.
- Setting of CGI_ARGLIST_ when automatic setting of env vars for form
scripting is utilized. This helps with minimal systems like openap.
- ip route flush
- different usage for telnetd in inetd mode
- changes for the default flags of the ip features
- if no /usr requested, udhcpc should use the script also without /usr.
- this is consistent with IPv6 route
- you can get very confused, if there are no routes and "route" prints
nothing at all (not even "No routes" message)
modified Kbuild system I put into uClibc. With this, there should be no more
need to modify Rules.mak since I've moved all the interesting options into the
config system. I think I've got everything updated, but you never know, I may
have made some mistakes, so watch closely.
-Erik
Ok. I generate patch for include to busybox-devel my work with
top (original author give me maintaining) and telnetd (my
support and unofficial maintaining) applets. Docs changes
also: added awk, netstat, time applets to list ;)
xconnect helper routine which does:
-address and port resolving
-tries to connect to all resolved addresses until connected
-uses getaddrinfo, so works for IPv6 too
This patch also ports rdate, telnet, and wget to use the new
xconnect function. Thanks Bart!
IPV6 support to busybox. This patch does the following:
* Add IPv6 support to libbb
* Enable IPv6 interface address display
* Add IPv6 config option
* Adds ping6, an adaptation of the ping applet for IPv6
* Adds support routines for ping6:
- xgethostbyname2
- create_icmp6_socket
* Adds ifconfig support for IPv6
* Add support IPv6 to netstat
* Add IPv6 support to route
Thanks Bart!
Fixed up domain removal for local domains. GNU traceroute does not do this. I
don't know why we do. Fixed incorrect argument for reverse resolution. Clean
up cruft that appears when CONFIG_FEATURE_TRACEROUTE_VERBOSE is defined
1. busybox-telnet dosn't inform server about the size of terminal screen.
In the world of xterminals and frame buffers it's rather horrible
to use fixed 80x24 region in upper-left corner of screen/window.
2. If client sends character 0x0d to the server then sends character 0x0a
the server eat the second byte (0x0a) - it's described in telnet RFC.
Client should send two bytes ( 0x0d + 0x0a or 0x0d + 0x00 ) insted of
one 0x0d byte.
3. busybox telnet implementation wasn't 8bit clean (look at 0xff byte).
I need it because I have to use binray transfer like rz/sz. So when
I resloved the problem (2) I corrected this one two.
This also contains a small cleanup patch from vodz, and some minor editing
by me.
the busybox development tree. This eliminates the use of recursive make, and
once again allows us to run 'make' in a subdirectory with the expected result.
And things are now much faster too. Greatly improved IMHO...
-Erik
* networking/ping.c (hostname): Removed.
[CONFIG_FEATURE_FANCY_PING] (noresp): Moved from here . . .
[CONFIG_FEATURE_FANCY_PING] (ping:noresp): . . . to here.
Use H->h_name, not hostname.
[CONFIG_FEATURE_FANCY_PING] (ping): Do not copy H->h_name into
hostname.
Use H->h_name directly.
[!CONFIG_FEATURE_FANCY_PING] (hostent): New global variable.
[!CONFIG_FEATURE_FANCY_PING] (pingstats): Use hostent in favor
of the now obsolete hostname global variable.
[!CONFIG_FEATURE_FANCY_PING] (ping): Likewise.
No need to copy H; use hostent instead.
[!CONFIG_FEATURE_FANCY_PING] (ntransmitted, nreceived,
nrepeats, pingcount, myid, options, tmax, tsum): Removed
superfluous zero initializers.
-- reverse resolve network name and cache in route and ifconfig
applets, fix print nslookup server name if compile without
uClibc, fix route crashe 'route add', fix warnings compile
networking and pwd_grp applets
- Switched to getopt argument parsing
- Added -f option to get fully qualified domain name
- Fixed the -s (short) and -d (domain) options, which were not
doing a gethostbyname lookup to get the FQDN before trying to
separate the local and domain portions of the hostname.
- Fixed probem with 'agressive setting' of the hostname...the
previous busybox version would try to set the hostname if called
with a non-option argument, or the -F option, even if another
option (like -i or -s) was given. This behavior does not match
the net-tools hostname, which does not attempt to set anything if
given a 'display' option, regardless of the presence/absence of
the -F option or additional command line arguments.
- When using a file to set the hostname, behavior now matches
net-tools version...previous busybox version did not handle
comments, and simply grabbed the first line from the file.
by ifconfig that someone had submitted. It fixes 1 bug, gets rid of the
excessive bloating of a structure that is used in a static const array,
and removes the implicit struct copys by keeping only the int type needed.
It also turns this into a configurable feature (off by default).
make busybox be more uClinux friendly. I also adjusted Config.h for
uClinux so it will automagically disable apps the arn't going to
work without fork() and such.
-Erik
1) ping cleanup (compile fix from this patch already applied).
2) traceroute call not spare ntohl() now (and reduce size);
3) Fix for functions not declared static in insmod, ash, vi and mount.
4) a more simple API cmdedit :))
5) adds "stopped jobs" warning to ash on Ctrl-D and fixes "ignoreeof" option
6) reduce exporting library function index->strchr (traceroute), bzero->memset (syslogd)
- support for ftp downloads
- HTTP basic authentication support (as an optional feature)
- handling of http redirections
- protocol version changed to 1.0 (to stop servers from requesting
chunked encoding)
- bugfix: in the case when content-length not given, wget didn't
download anything
- when attempting to continue an aborted download but server doesn't
support restarts, reopen output file in write mode
- changed assumption that existing file should restart an aborted
download. Now the user must explicitly specify this with -c
hacking on the mess in net-tools-1.59, but it currently adds 12k and
supports ethernet, loop, ppp, and treats everything else as a generic
interface. Works ok for me.
-Erik
- style changes
- It actually returns the code computed by INET_setroute (wasn't being done
properly before)
- The displayroute() format string now matches net-tools
busybox.h which slowed compiles. I left only what was needed and then fixed up
all the apps to include their own header files. I also fixed naming for pwd.h
and grp.h functions. Tested to compile and run with libc5, glibc, and uClibc.
-Erik
exit().
Note that calling perror() after gethostbyname() will most likely return
"No such file or directory" which is quite confusing, so I decided to use
fatalError instead.
Regards,
Pavel Roskin
* cp/mv now accepts (and ignores) the -f flag, since it always
does force anyway
* tail can now accept -<num> commands (e.g. -10) for better
compatibility with the standard tail command
* added a simple id implementation; doesn't support supp. groups yet
