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In BusyBox v1.00-pre2,
commands like ls, df with -h option report a wrong file size for files larger than 4GBtye!!
For example,
when I execute 'ls -l', it reports
-rw-r--r-- 1 root root 5368709120 Aug 17 2003 large_stream.tp
when I execute 'ls -lh', I expect that
-rw-r--r-- 1 root root 5.0G Aug 17 2003 large_stream.tp
but it reports
-rw-r--r-- 1 root root 1.0G Aug 17 2003 large_stream.tp
I fixed this bug that...
Line 31 in libbb/human_readable.c and line 275 include/libbb.h
const char *make_human_readable_str(unsigned long size
=> const char *make_human_readable_str(unsigned long long size
It's OK!
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to not copy too much data.
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I've reported this bug in April and it still
exists in 1.00-pre2. So I made patches for
both 0.60.x and 1.00-pre2. The patch is very
simple, just use strncmp instead of strcmp.
Please apply if it is OK.
Here's the procedure to test this problem:
Create a executable with very long name, say
'test_1234567890123456' and execute it. Try
using 'killall' or 'pidof' to find/kill this
program. Without this patch, you can't find
the program.
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This moment have algoritmicaly problem, not overflow:
strcat(wrapped, wrapped) - may be looped.
Hand patch:
- else if (strstr(strcat(wrapped, wrapped), newmono))
+ else {
+ safe_strncpy(wrapped + lenwrap, wrapped, lenwrap + 1);
+ if (strstr(wrapped, newmono))
+}
--w
vodz
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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
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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
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I've found a possible bug in libbb/interface.c, in function
if_readlist_proc(). This function calls get_name(), and passes
as an argument 'name', a buffer of 16 bytes (IFNAMSIZ). The
function get_name(), however, may use more than 16 bytes,
when it is searching for aliases. Even if you don't have an
alias interface, you can run into trouble if the interface
has received more than 99999999 bytes, in which case the
space between the interface name and the rx stats
disappears, as in the /proc/net/dev example below:
wan0.200:264573315 462080 ...
In this case get_name() correctly identifies the interface name
as "wan0.200", but to do that it uses 18 bytes of the 'name'
buffer, which could lead to an unpredictable error.
A simple solution would be to increase the size of the buffer:
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I've attached my latest SE Linux patch for busybox against the latest CVS
version of busybox.
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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 ;-)
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Manuel,
I rewrite bb_getopt_ulflags() function for more universal usage.
My version support now:
- options with arguments (optional arg as GNU extension also)
- complementaly and/or incomplementaly and/or incongruously and/or list
options
- long_opt (all applets may have long option, add supporting is trivial)
This realisation full compatibile from your version.
Code size grow 480 bytes, but only coreutils/* over compensate this size
after using new function. Last patch reduced over 800 bytes and not full
applied to all. "mkdir" and "mv" applets have long_opt now for demonstrate
trivial addition support long_opt with usage new bb_getopt_ulflags().
Complementaly and/or incomplementaly and/or incongruously and/or list options
logic is not trivial, but new "cut" and "grep" applets using this logic
for examples with full demostrating. New "grep" applet reduced over 300
bytes.
Mark,
Also. I removed bug from "grep" applet.
$ echo a b | busybox grep -e a b
a b
a b
But right is printing one only.
--w
vodz
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vfork(), so I have simplified it.
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patch by Nick Fedchik
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NULL, and so it can handle format strings that have stuff _after_ the last %?
specification
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with "bb_" it seems best to rename this now and avoid starting
an evil KDE style naming trend.
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numbers from getopt which includes careful error checking.
-Erik
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people to locate the mtab file somewhere other that /etc to
accomodate read only root filesystems.
-Erik
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patch from Bastian Blank
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is not found. Patch from Bastian Blank
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-Erik
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N. Oleynik
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(eg ifupdown). Changed the name to llist_add_to as i plan on adding more llist_ functions as needed (e.g. llist_free).
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command ?
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