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WTMP options
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is not a very good default. Better to default to having it off
and let people get the default behavior. If they want to enable
/etc/busybox.conf they should explicitly ask for it.
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CONFIG_FEATURE_SUID to ensure proper behavior when installed.
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to be interpreted properly
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some more work to shrink them down.
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Vladimir N. Oleynik says: uname() can be replaced with get_kernel_revision()
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depend alias
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presumably be removed eventually (use udev), but as long as it's in there.
Tito says:
The sense of this patch is to call:
read_config_file_err:
#ifdef CONFIG_DEVFSD_VERBOSE
msg_logger(((optional == 0 ) && (errno == ENOENT))? DIE : NO_DIE, LOG_ERR, "read config file: %s: %m\n", path);
#else
if(optional == 0 && errno == ENOENT)
exit(EXIT_FAILURE);
#endif
just after the failure of the call that set errno ( stat and fopen)
to avoid false error messages.
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Charlie Brady wrote:
> Here's another awk parsing problem - unary post increment - pre is fine:
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>bash-2.05a$ echo 2,3 | gawk -F , '{ $2++ }'
>bash-2.05a$ echo 2,3 | /tmp/busybox/busybox awk -F , '{ $2++ }'
>awk: cmd. line:1: Unexpected token
>
Here's a fix for this. There is another problem with constructions like
"print (A+B) ++C", I don't
know whether somebody uses such constructions (fixing both these
problems would require very
serious change in awk code).
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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
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CONFIG_RESERVE_BUFFER. (Rob Landley removed an #ifdef, per discussion on
the list.)
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with the wrong ARP address, meaning we could easily get somebody else's IP.
That is a bad thing, and this is the minimal two-line fix.
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This patch implements the 'T' command in sed. This is a GNU extension,
but one of the udev hotplug scripts uses it, so I need it in busybox
anyway.
Includes a test; 'svn add testsuite/sed/sed-branch-conditional-inverted'
after applying.
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While the permissions on the temp file are correct to prevent it from being
maliciously mangled by passing strangers, (created with 600, opened O_EXCL,
etc), the permissions on the _directory_ might not be, and we re-open the
file to convert the filehandle to a FILE * (and automatically get an error
message and exit if the directory's read-only or out of space or some such).
This opens a potential race condition if somebody's using dnotify on the
directory, deletes/renames the tempfile, and drops a symlink or something
there. Somebody running sed -i as root in a world writeable directory could
do damage.
I dug up notes on an earlier discussion where we looked at the security
implications of this (unfortunately on the #uclibc channel rather than email;
I don't have a transcript, just notes-to-self) which pointed out that if the
permissions on the directory allow other people's files to be deleted/renamed
then the original file is vulnerable to sabotage anyway. However, there are
two cases that discussion apparently didn't take into account:
1) Using another user's permissions to damage files in other directories you
can't access (standard symlink attack).
2) Reading data another user couldn't otherwise access by having the new file
belong to that other user.
This patch uses fdopen to convert the filehandle into a FILE *, rather than
reopening the file.
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