The GNU Hurd has a bug that can make select() report an exception in a
pipe even though none has actually occurred. The typical result is
that ELinks closes the pipe through which it internally passes all
input events, such as keypresses. It then no longer reacts to what
the user is trying to do.
Work around the Hurd bug by making set_handlers() check whether the
file descriptor refers to a pipe, and if so, pretend the caller did
not provide any handler for exceptions. This is a minimal change that
avoids slowing down the select() loop itself and does not require
careful analysis of the callers to statically find out which file
descriptors might refer to pipes. The extra stat() calls may slow
ELinks down somewhat, but anyway it'll work better than it did without
the patch, and if the Hurd bug is ever fixed, we can remove the
workaround at that time.
Separate the formatting of unparsed lines from ftp_process_dirlist()
to a new function ftp_add_unparsed_line(). Check for all possible
out-of-memory errors. Encode HTML metacharacters as entity references
and document how charsets are handled FTP directory listings.
Add a NEWS entry.
With Sun Studio 11 on Solaris 9, we get "cc: Warning: illegal option
-dynamic"; then, cc proceeds anyway, but the option can prevent the
linker from finding the libraries listed in -l operands. To detect
this, move the -rdynamic check in configure.in down to a place where
the libraries have already been added to $LDFLAGS. So if -rdynamic
interferes with the search for libraries, ELinks won't use it.
Merely moving the test would also change the location of -rdynamic in
$LDFLAGS. Counteract that by making the test add -rdynamic to the
beginning of $LDFLAGS, rather than to the end. This may make the test
more reliable on Solaris.
ELinks used to call the MD5 code in libgnutls-openssl, part of
GNUTLS-EXTRA, which was licensed under GNU GPL version 2 or later.
In GnuTLS 2.2.0 however, the license of GNUTLS-EXTRA has been changed
to GNU GPL version 3 or later. This is no longer compatible with
GNU GPL version 2 as used in the current ELinks, because GPLv2 clause
2. b) requires the whole work to be licensed under GPLv2, and GPLv3
does not allow that.
If anyone is still using a pre-2.2 GnuTLS, he or she can tweak
configure.in to check the version or just assume it's old enough.
There is not much reason to do so though, as including the MD5 code
in ELinks seems to cost only about 4 kilobytes on i686.
(cherry picked from commit 9ca0182ec6)
fsp_open_session() has a bug where it does not set errno if getaddrinfo fails.
Before the bug 1013 fix, this caused an assertion failure.
After the bug 1013 fix, this caused a "Success" error message.
Now it instead causes "FSP server not found".
Replace almost all uses of enum connection_state with struct
connection_status. This removes the assumption that errno values used
by the system are between 0 and 100000. The GNU Hurd uses values like
ENOENT = 0x40000002 and EMIG_SERVER_DIED = -308.
This commit is derived from my attachments 450 and 467 to bug 1013.
It seems GnuTLS is not as good at negotiating a supported protocol as
OpenSSL is. ELinks tries to work around that by retrying with a
different protocol if the SSL library reports an error. However,
ELinks must not automatically retry POST requests where some data may
have already reached the server; POST is not a safe method in HTTP.
So instead, collect the name of the TLS-incapable server in a blacklist
when ELinks e.g. loads an HTML form from it; the actual POST can then
immediately use the protocol that worked.
It's a bit ugly that src/network/socket.c now uses
protocol/http/blacklist.h. It might be better to move the blacklist
files out of the http directory, and perhaps merge them with the
BitTorrent blacklisting code.
Check in refresh_view() whether the tab is still current; if not, skip
the draw_doc() and draw_frames() calls because draw_current_link()
called within them asserts that the tab is current. However, do
always call print_screen_status(), because that handles non-current
tabs correctly too.
I think it was not yet possible to trigger the assertion failure with
setTimeout, because input.value modifications by ECMAScript do not
trigger a redraw (bug 1035).
In document.forms, each struct form has form_num and form_end members
that reserve a subrange of [0, INT_MAX] to that form. Previously,
multiple forms in the list could have form_end == INT_MAX and thus
overlap each other. Prevent that by adjusting form_end of each form
newly added to the list.
Revert 438f039bda,
"check_html_form_hierarchy: Old code was buggy.", which made
check_html_form_hierarchy attach controls to the wrong forms.
Instead, construct the dummy form ("for those Flying Dutchmans") at
form_num == 0 always before adding any real forms to the list.
This prevents the assertion failure by ensuring that every possible
form_control.position is covered by some form, if there are any forms.
Add a function assert_forms_list_ok, which checks that the set of
forms actually covers the [0, INT_MAX] range without overlapping,
as intended. Call that from check_html_form_hierarchy to detect
any corruption.
I have tested this code (before any cherry-picking) with:
- bug 613 attachment 210: didn't crash
- bug 714 attachment 471: didn't crash
- bug 961 attachment 382: didn't crash
- bug 698 attachment 239: all the submit buttons showed the right URLs
- bug 698 attachment 470: the submit button showed the right URL
(cherry picked from commit 386a5d517b)
init_js_window_object() copies the alert, open, and setTimeout methods
from the window object to the global object. My fix for bug 846 on
2006-12-10 incorrectly made the corresponding C functions refuse to
work if they were not called as methods of the window object.
Commit 0b99fa70ca "Bug 620: Reset form
fields to default values on reload" made render_document() decrement
vs->form_info_len to 0 while vs->form_info remained non-NULL.
copy_vs() then copied the whole structure with copy_struct and did not
change form_info because form_info_len was 0. Both view_state
structures had form_info pointing to the same memory block, causing a
segfault when destroy_vs() tried to free that block a second time.
Reported by أحمد المحمودي.
elinks.keymaps.main["/"] = null;
used to crash ELinks with a segfault in JS_ObjectIsFunction.
Fix that by recognizing JSVAL_NULL explicitly and treating it as "none".
Likewise, if keymap_get_property would return "none" to ECMAScript,
return JSVAL_NULL instead.
The SpiderMonkey scripting module handles the "pre-format-html" event
by constructing a JSObject for the struct cache_entry and then calling
elinks.preformat_html(cache_entry, view_state) if such a function
exists. The problem with this was that each such JSObject kept the
struct cache_entry locked until SpiderMonkey garbage-collected the
JSObject, even if the user had not defined an elinks.preformat_html
function and the JSObject was thus never needed at all. To work
around that, the SpiderMonkey scripting module ran a garbage
collection whenever the user told ELinks to flush caches.
Remove the SpiderMonkey scripting module's use of object_lock and
object_unlock on struct cache_entry, and instead make the pointers
weak so that ELinks can free the cache_entry whenever it wants even if
a JSObject is pointing to it. Each cache_entry now has a pointer back
to the JSObject; done_cache_entry calls smjs_detach_cache_entry_object,
which follows the pointer and detaches the cache_entry and the JSObject
from each other.
This commit does not yet remove the workaround mentioned above.
Because http://elinks.cz/release.html is made from this file,
I think we'll have to list both 0.11.4.GIT and 0.12pre1.GIT
even though it's a bit difficult to explain which fixes are
in which releases.
The second argument of PERL_SYS_INIT3 should be a char ***
but ELinks was giving it a char *(*)[1].
Also, enlarge the array to 2 elements, so that my_argv[my_argc] == NULL
like in main(). PERL_SYS_INIT3 seems hardly documented at all so I'm
not sure this is necessary, but it shouldn't hurt.
(cherry picked from commit 8d0677e76a)
There are warnings about casts in the Debian amd64 build logs:
http://buildd.debian.org/fetch.cgi?&pkg=elinks&ver=0.11.3-2&arch=amd64&stamp=1200348983&file=log
[CC] src/intl/gettext/dcigettext.o
/build/buildd/elinks-0.11.3/src/intl/gettext/dcigettext.c: In function '_nl_find_msg':
/build/buildd/elinks-0.11.3/src/intl/gettext/dcigettext.c:745: warning: cast from pointer to integer of different size
/build/buildd/elinks-0.11.3/src/intl/gettext/dcigettext.c:746: warning: cast from pointer to integer of different size
...
[CC] src/network/ssl/socket.o
/build/buildd/elinks-0.11.3/src/network/ssl/socket.c: In function 'ssl_connect':
/build/buildd/elinks-0.11.3/src/network/ssl/socket.c:219: warning: cast to pointer from integer of different size
The warnings in _nl_find_msg were caused by alignof, which I already
fixed. This commit ought to fix the gnutls_transport_set_ptr call in
ssl_connect. This warning did not yet happen in bug 464384 because
the others broke the build before it got that far.
This patch prevents handle_itrm_stdin() and clear_handlers(itrm->in.std) to be
called when -remote is set and in.std < 0.
It adds two assertions for in.std >= 0 in handle_itrm_stdin() and
unhandle_itrm_stdin().
May be a bad fix, please test and review.
[Added a NEWS entry. --KON]
Do not clear the IXON flag in termios.c_iflag.
Bug 54 did not actually ask for this flag to be kept,
but the cable I am using doesn't seem to have the handshake
lines connected right, so XON/XOFF is a must at 38400 bps,
at least until ELinks learns to send padding based on terminfo.
Any user who has bound actions to Ctrl+S or Ctrl+Q and finds that
they no longer work should just "stty -ixon" before running ELinks.
We don't have any default bindings for those keys, fortunately.
Actually, don't use the cfmakeraw function at all,
and don't look for it during configure either.
(cherry picked from commit 87f1661314
but moved the NEWS entry into the 0.12 section)
When setting the tty device to raw mode, save the VERASE character.
Later, compare incoming bytes to that.
This is somewhat complicated because "stty verase undef"
sets termios.c_cc[VERASE] = _POSIX_VDISABLE, and e.g. Linux
defines _POSIX_VDISABLE as 0 but that must not cause ELinks
to treat incoming null bytes as backspaces. Furthermore,
some systems may use different VDISABLE values for different
terminal devices, in which case _POSIX_VDISABLE is undefined
and ELinks must instead read the value from fpathconf().
It is unlikely because the standard members of struct sockaddr_in
(sin_family, sin_port, sin_addr) already require at least 8 bytes
and I don't know of any system that has size_t larger than that.
Besides, at least glibc pads the structure to 16 bytes.
When get_pasv6_socket was merged into get_pasv_socket on 2005-04-15,
the AF_INET6 of get_pasv6_socket was lost and the merged function
always returned AF_INET sockets. This then made getsockname fill
only part of the struct sockaddr_in6, and ELinks sent to the server
an EPRT command that had half the bits missing from the IPv6 address.
At least ftp.funet.fi then rejected the command, helpfully saying
what the address should have been.
This commit fixes active FTP over IPv6. Passive FTP was already fixed
in 0.11.3.GIT (887d650efe), on 2007-05-01.
On machines where sizeof(size_t) > sizeof(int), this could corrupt the stack.
I think -Wno-pointer-sign added by configure hid this bug until now.
STRLEN is correct in Perl 5.6.0 and later, perhaps earlier too.
Bug 972 was fixed in this commit, and reported afterwards:
commit b1cc717789
Author: Kalle Olavi Niemitalo <kon@iki.fi>
Date: Fri Jul 20 17:57:01 2007 +0300
Preserve underlines in links when justifying.
I'm not fully updating NEWS yet. Just this one bug.
The SpiderMonkey support in ELinks now uses JS_GetReservedSlot,
which was added in SpiderMonkey 1.5 RC3a, released on 2001-05-11.
So ELinks no longer supports earlier versions of SpiderMonkey.
However, be careful not to claim that ELinks needs "SpiderMonkey
1.5 RC3a or later", because we haven't tested 1.5 RC3a.
(I guess we didn't test zlib 1.2.0.2 either... oh, well.)
The history converted from CVS is not in repo.or.cz though, so keep
referring to pasky.or.cz for that. (We don't seem to use
"gitweb.elinks.cz", which is a DNS alias for pasky.or.cz.)
<paakku> Do you think we should maybe point people to gitweb at
repo.or.cz rather than pasky.or.cz?
<pasky> absolutely
<pasky> actually I thought we already are pointing people at
repo.or.cz
<pasky> at least there was some movement to do that already, I believe
:)
It was reported at elinks-dev on 2007-06-03 that Solaris 10 comes with
zlib 1.1.4, which does not include gzclearerr(), which ELinks nowadays
requires. It would be possible to rewrite the decompression support
to use deflate() directly and avoid stdio, in which case gzclearerr()
would not be needed. That will take some time however, so I'm not
attempting it for ELinks 0.12.0. Instead, I'm just disabling gzip
decompression entirely if zlib is too old.
