Commit Graph

13537 Commits

Author SHA1 Message Date
Stephen Heumann
71b8b67d7d Make the "smallint" type "int" instead of "signed char." This works around an apparent compiler bug where a conditional isn't evaluated correctly. 2014-11-06 13:36:41 -06:00
Stephen Heumann
3b1d003ea7 Handle globals more simply, declaring the "G" structure containing them directly in shell/hush.c.
This allows the "G" struct to show up in the debugger, so it can easily be inspected.
2014-11-06 13:08:38 -06:00
Stephen Heumann
9320c1e704 Set things up so hush can be build with debug code turned on.
This involved breaking things up into more segments in debug mode, since the code is larger. I also had to remove some unused extern definitions, which were causing link errors when debug code was enabled.

To enable debug code, pass "DEBUG=1" to make or build.gs.
2014-11-06 11:42:17 -06:00
Stephen Heumann
a3426d2782 Remove C99isms in hush debug code to address compilation errors when debugging stuff enabled. 2014-11-05 23:28:24 -06:00
Stephen Heumann
2669183517 Define segments and make other adjustments in makefile.
At this point, hush can successfully build and run, although it doesn't work correctly.

The main Makefile is now dedicated to the GNO build. There's now a separate makefile for building on modern systems with GCC/Clang.
2014-11-05 22:26:33 -06:00
Stephen Heumann
77ded3c27c Use databank pragma around forked child entry methods, as required to ensure correct behavior. 2014-11-05 19:02:03 -06:00
Stephen Heumann
d583686459 Disable functionality for printing the time in the shell's prompt. This required strftime(), which is missing in GNO 2.0.6.
It would have been possible to add a version of strftime(), but it didn't seem worth it for this little bit of functionality. It should also be possible to get similar functionality by invoking an external program like "date" in PS1.
2014-11-05 18:00:35 -06:00
Stephen Heumann
c7f9c18893 Use GNO job control calls in place of unavailable POSIX ones. 2014-11-05 15:28:59 -06:00
Stephen Heumann
a3c32aaa73 Revise terminal control code to use ioctls supported by GNO instead of termios calls that aren't supported. 2014-11-04 19:53:40 -06:00
Stephen Heumann
7e5a584f0c Use alternative code (also from BusyBox) for checking if the user is in a group, avoiding a call to getgroups(), which isn't supported.
This could actually be further simplified, since GNO doesn't really have group-based file permissions, but I'll leave that until later.
2014-11-04 16:24:41 -06:00
Stephen Heumann
a60c64d6c7 Replace call to sigsuspend() (not in GNO) with sigpause(). 2014-11-04 15:41:05 -06:00
Stephen Heumann
42c6e9e095 Replace alloca usages with malloc in shell/glob.c. 2014-11-04 11:46:36 -06:00
Stephen Heumann
cbdfea4c97 Revise signal handling to work with GNO.
This involved using signal() rather than sigaction(), which GNO doesn't have. signal() doesn't have the signal-blocking feature of sigaction(), but I've tried to emulate it.
2014-11-04 10:45:28 -06:00
Stephen Heumann
036b92595c Address some link errors with various small changes.
The most significant change is to at use malloc instead of alloca in the code to evaluate shell arithmetic expressions in shell/math.c.
2014-11-03 23:29:34 -06:00
Stephen Heumann
af402a28a4 Restructure macros in libbb/xatonum.c and its template file to work with the ORCA/C preprocessor.
Also, get rid of a use of long long.
2014-11-03 20:17:51 -06:00
Stephen Heumann
9850090331 Use STDERR_FILENO rather than 2 in debug print statements, so they'll properly go to stderr on GNO. 2014-11-03 19:20:20 -06:00
Stephen Heumann
32e9dccc33 Fix the implementation of vasprintf to work with ORCA/C's varargs implementation. Also, shrink the stack-allocated buffer in it.
This code could theoretically break if the ORCA/C varargs implementation changed, but it should be OK in practice.

Also removed some unused code in libbb/xfuncs.printf.c that includes potentially problematic varargs use (defining varargs functions but not necessarily calling va_start/va_end in them).
2014-11-03 16:08:43 -06:00
Stephen Heumann
bdafda3f97 Fixes to get libbb/getopt32.c to compile.
This disables long argument support, since that requires getopt_long(), which isn't included in GNO. There is a separate library available for it, but it's simpler to avoid depending on that.
2014-11-03 12:58:57 -06:00
Stephen Heumann
488a238ad7 Add an implementation of poll() written in terms of select(), to work around the lack of poll() on GNO.
This is a BSD-licensed poll() implementation by Brian M. Clapper. Its performance characteristics aren't as good as a "native" poll() would be, but this shouldn't be a problem in practice.
2014-11-03 12:26:43 -06:00
Stephen Heumann
4e47bee9d2 Change libbb/signal.names.c to use C89-style constructs for ORCA/C compatibility. 2014-11-02 23:15:17 -06:00
Stephen Heumann
9b98d32e66 Fix ORCA/C compatibility problems in libbb/lineedit.c. 2014-11-02 22:40:28 -06:00
Stephen Heumann
051b79efc1 Move all the source files to 15-character ProDOS-compatible file names.
Dmake gets confused if you use over-15-character file names, so they needed to be shortened to get it to work. While I was at it, I also switched _ to . in the filenames so they're fully ProDOS compatible.

The shell/hush_test directory (not needed to build the code) still uses ProDOS-incompatible file names.
2014-11-02 22:11:07 -06:00
Stephen Heumann
d4b2c3ce8b Various changes for GNO and ORCA/C compatibility. 2014-11-02 18:30:31 -06:00
Stephen Heumann
97e65e3480 Remove C99isms from coreutils/test.c.
It now compiles successfully with ORCA/C.
2014-11-02 00:39:21 -05:00
Stephen Heumann
a3d8a81bb0 Add makefile (which can be used on GNO or a modern system), and build scripts based on in. 2014-11-01 22:59:10 -05:00
Stephen Heumann
875b1bbd0e More GNO and ORCA/C compatibility fixes.
Everything in the shell directory now compiles.
2014-11-01 18:25:21 -05:00
Stephen Heumann
2464399542 Convert additional vfork calls to xvfork_and_run. 2014-11-01 16:59:17 -05:00
Stephen Heumann
d7a6168aa1 ORCA/C compat fixes. Variables must be at beginning of block. 2014-11-01 16:07:30 -05:00
Stephen Heumann
3577d48e74 Change the ARRAY_SIZE macro to work around an ORCA/C limitation. 2014-11-01 15:47:17 -05:00
Stephen Heumann
2b0d727f39 Include glob implementation from dietlibc.
GNO doesn't actually implement glob, although it has a header for it. The GNO header is from an old BSD version and is missing some constants we need, so don't use it.
2014-11-01 14:27:52 -05:00
Stephen Heumann
f6c7fdc027 GNO/ORCA compatiblity: remove final comma in enums, and appropriately define stuff that GNO doesn't have in platform.h. 2014-11-01 14:22:47 -05:00
Stephen Heumann
3709307794 Get rid of varargs macros in hush.c. 2014-11-01 11:25:19 -05:00
Stephen Heumann
8f6869ae25 Miscellaneous changes for ORCA/C and GNO compatibility, mainly removing C99isms.
At this point, ORCA/C can process the main header files, and some smaller source files compile without errors.
2014-11-01 09:46:02 -05:00
Stephen Heumann
b7676499be More removal of stuff that used long longs 2014-10-27 19:45:38 -05:00
Stephen Heumann
6c2c9d8865 Get rid of long longs in the the hush code (but not yet in the libraries) 2014-10-27 14:09:00 -05:00
Stephen Heumann
16c89af688 Change vfork calls to use vfork_and_run operation with GNO-compatible semantics 2014-10-27 13:10:11 -05:00
Stephen Heumann
e61b4040ec Make char unsigned, as busybox is designed for (and as ORCA/C does) 2014-10-27 00:48:59 -05:00
Stephen Heumann
a00ca4770f Eliminate or disable all the warnings given by clang -Wall 2014-10-26 23:30:51 -05:00
Stephen Heumann
472db3bd56 Delete the stuff that's irrelevant to hush. Also, include (a simplified version of) the autoconf-generated headers and a simple build script, so it can easily be build in the hush-only configuration. 2014-10-26 22:39:01 -05:00
Stephen Heumann
ef1a853400 Minimal changes to enable hush-only builds on OS X 2014-10-26 21:14:47 -05:00
Miroslav Lichvar
760d035699 ntpd: calculate offset to jitter ratio before updating jitter
The offset to jitter ratio is now calculated before updating
jitter to make the test more sensitive.

function                                             old     new   delta
ntp_init                                             460     474     +14
update_local_clock                                   752     764     +12
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 26/0)               Total: 26 bytes

Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-10-05 03:11:53 +02:00
Denys Vlasenko
cd73871178 sed: fix "sed CMD -i nonexistent_file". Closes 7484
function                                             old     new   delta
sed_main                                             643     676     +33

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-10-05 02:44:34 +02:00
Miroslav Lichvar
b434ce7069 ntpd: don't stay at short polling interval
To avoid polling servers frequently slowly increase the interval up
to BIGPOLL when
- no replies are received from a peer
- no source can be selected
- peer claims to be unsynchronized (e.g. we are polling it too
  frequently)

When recv() returns with an error, drop code to try to continue
on network errors: I'm not convinced those cases happen in real life.

function                                             old     new   delta
recv_and_process_peer_pkt                            919     838     -81

Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-10-02 17:24:34 +02:00
Denys Vlasenko
cf76b5ce12 getty: set tty attrs so that control chars are shown as ^c
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-10-02 13:45:21 +02:00
Denys Vlasenko
d3fe960271 ntpd: be less eager to use shorter poll intervals
* on step, poll interval drops to 8.5 mins instead of 32 seconds
* on total loss of all replies (no replies from any peer
  for last 8 requests), also drop poll interval to 8.5 mins
  instead of 32 seconds
* on send abd recv errors, RETRY_INTERVAL is now 32 seconds,
  not 5 seconds
* on timing out listening to reply, instead of unconditional
  shortening poll interval by x4, clamp it to NOREPLY_INTERVAL
  (512 seconds)
* if a largish offset is seen, clamp nexp poll interval
  to 128 seconds, not 64 seconds

function                                             old     new   delta
clamp_pollexp_and_set_MAXSTRAT                         -      37     +37
recv_and_process_peer_pkt                            861     869      +8
poll_interval                                         52      48      -4
update_local_clock                                   762     752     -10
ntpd_main                                           1063    1050     -13
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/3 up/down: 45/-27)             Total: 18 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-09-27 22:56:09 +02:00
Denys Vlasenko
186b98a86f ubiupdatevol: fix -t to not require an option. Closes 7466
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-09-25 22:10:32 +02:00
Denys Vlasenko
054f5a5b0d install: fix help text
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-09-24 22:16:24 +02:00
Miroslav Lichvar
590a22cf8d ntpd: split out poll adjusting code
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-09-24 15:37:17 +02:00
Miroslav Lichvar
fb143f783d ntpd: don't wait for good offset before disabling burst mode
The burst mode needs to be stopped even when no replies are received.

Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-09-24 15:21:18 +02:00
Aaro Koskinen
0f78d616cb install: implement -t DIR
Some packages want to install themselves using "-t" to specify
the directory (as supported by GNU coreutils). Add support for the option
for compatibility reasons.

function                                             old     new   delta
install_longopts                                      76      95     +19
install_main                                         769     777      +8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 27/0)               Total: 27 bytes

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-09-24 02:52:08 +02:00