Commit Graph

36 Commits (f5baf2630ab0cf51306bb94311e7eed84caa730d)

Author SHA1 Message Date
FRIGN 79e8e330cb Fix wc(1) output for large files
Previously, we used the System V output format:
	"%7d%7d%7d %s\n"
The problem here is, that if any number has more than six digits, the
result looks like one big number, as we don't mandate spaces.

POSIX says the output format should rather be
	"%d %d %d %s\n"
but in this case we wouldn't get consistent results.

To serve both camps, I changed it to the following:
	"%6d %6d %6d %s\n"
This won't change the output for normal values, but also
prevent the output of large files to be ambiguous.
2016-02-24 14:45:20 +00:00
sin 2366164de7 No need for semicolon after ARGEND
This is also the style used in Plan 9.
2015-11-01 10:18:55 +00:00
FRIGN d23cc72490 Simplify return & fshut() logic
Get rid of the !!()-constructs and use ret where available (or introduce it).

In some cases, there would be an "abort" on the first fshut-error, but we want
to close all files and report all warnings and then quit, not just the warning
for the first file.
2015-05-26 16:41:43 +01:00
FRIGN 9a074144c9 Remove handrolled strcmp()'s
Favor readability over bare-metal.
2015-05-21 15:43:38 +01:00
FRIGN 0545d32ce9 Handle '-' consistently
In general, POSIX does not define /dev/std{in, out, err} because it
does not want to depend on the dev-filesystem.
For utilities, it thus introduced the '-'-keyword to denote standard
input (and output in some cases) and the programs have to deal with
it accordingly.

Sadly, the design of many tools doesn't allow strict shell-redirections
and many scripts don't even use this feature when possible.

Thus, we made the decision to implement it consistently across all
tools where it makes sense (namely those which read files).

Along the way, I spotted some behavioural bugs in libutil/crypt.c and
others where it was forgotten to fshut the files after use.
2015-05-16 13:34:00 +01:00
sin d412dad470 Simplify condition in wc(1) 2015-04-20 11:26:38 +01:00
Dionysis Grigoropoulos feb77a3b8d wc: Print number of bytes by default
According to POSIX, wc should by default print the number of bytes and
not the number of chars
2015-04-05 09:13:56 +01:00
FRIGN 11e2d472bf Add *fshut() functions to properly flush file streams
This has been a known issue for a long time. Example:

printf "word" > /dev/full

wouldn't report there's not enough space on the device.
This is due to the fact that every libc has internal buffers
for stdout which store fragments of written data until they reach
a certain size or on some callback to flush them all at once to the
kernel.
You can force the libc to flush them with fflush(). In case flushing
fails, you can check the return value of fflush() and report an error.

However, previously, sbase didn't have such checks and without fflush(),
the libc silently flushes the buffers on exit without checking the errors.
No offense, but there's no way for the libc to report errors in the exit-
condition.

GNU coreutils solve this by having onexit-callbacks to handle the flushing
and report issues, but they have obvious deficiencies.
After long discussions on IRC, we came to the conclusion that checking the
return value of every io-function would be a bit too much, and having a
general-purpose fclose-wrapper would be the best way to go.

It turned out that fclose() alone is not enough to detect errors. The right
way to do it is to fflush() + check ferror on the fp and then to a fclose().
This is what fshut does and that's how it's done before each return.
The return value is obviously affected, reporting an error in case a flush
or close failed, but also when reading failed for some reason, the error-
state is caught.

the !!( ... + ...) construction is used to call all functions inside the
brackets and not "terminating" on the first.
We want errors to be reported, but there's no reason to stop flushing buffers
when one other file buffer has issues.
Obviously, functionales come before the flush and ret-logic comes after to
prevent early exits as well without reporting warnings if there are any.

One more advantage of fshut() is that it is even able to report errors
on obscure NFS-setups which the other coreutils are unable to detect,
because they only check the return-value of fflush() and fclose(),
not ferror() as well.
2015-04-05 09:13:56 +01:00
Dionysis Grigoropoulos bbd2b4d243 wc: Show line/char/word count even if it's zero
Fix a bug where if a line, character or word count is zero, it's not
printed
2015-04-01 11:06:47 +01:00
FRIGN 7bacd98b0e Audit wc(1)
Style cleanup, Manpage refactoring.
2015-03-18 00:20:19 +01:00
Hiltjo Posthuma 0c17cd0fb3 staticize some functions 2015-03-07 13:33:39 +01:00
FRIGN 31572c8b0e Clean up #includes 2015-02-14 21:12:23 +01:00
FRIGN a5ae899a48 Scrap readrune(), introducing fgetrune()
Interface as proposed by cls, but internally rewritten after a few
considerations.
The code is much shorter and to the point, aligning itself with other
standard functions. It should also be much faster, which is not bad.
2015-02-11 20:16:49 +01:00
FRIGN 471cf8f5bc Use runetypebody.h-functions in wc(1) 2015-02-11 15:48:18 +01:00
sin 39802832af wc: Make output POSIX compliant 2015-02-06 19:46:45 +00:00
sin 0c8fe5d19b wc: Report exit status properly 2015-02-06 19:11:33 +00:00
sin 5552db75ba Don't call var "read" 2015-02-01 10:22:11 +00:00
FRIGN 986a9de51a Add even stricter UTF-8-support to wc(1)
using readrune() and iswspace().
musl for instance doesn't differentiate between iswspace() and
isspace(), but when it does, the code will be ready.
It goes without saying that GNU coreutils don't use iswspace()[0].

[0]: http://git.savannah.gnu.org/gitweb/?p=coreutils.git;a=blob;f=src/wc.c
2015-02-01 04:06:06 +01:00
FRIGN 8ab096d2a4 Finish up wc(1)
Use size_t for all counts, fix the manpage and refactor the code.
Here's yet another place where GNU coreutils fail:

sbase:
$ echo "GNU/Turd sucks" | wc -cm
    15

coreutils:
$ echo "GNU/Turd sucks" | wc -cm
     15      15

Take a bloody guess which behaviour is correct[0].

[0]: http://pubs.opengroup.org/onlinepubs/009604499/utilities/wc.html
2015-02-01 03:01:11 +01:00
FRIGN ec8246bbc6 Un-boolify sbase
It actually makes the binaries smaller, the code easier to read
(gems like "val == true", "val == false" are gone) and actually
predictable in the sense of that we actually know what we're
working with (one bitwise operator was quite adventurous and
should now be fixed).

This is also more consistent with the other suckless projects
around which don't use boolean types.
2014-11-14 10:54:20 +00:00
FRIGN eee98ed3a4 Fix coding style
It was about damn time. Consistency is very important in such a
big codebase.
2014-11-13 18:08:43 +00:00
sin 0c5b7b9155 Stop using EXIT_{SUCCESS,FAILURE} 2014-10-02 23:46:59 +01:00
sin b744ad5216 If there's no newline we don't count the last word - fix it 2014-01-10 22:52:00 +00:00
sin b8edf3b4ee Add weprintf() and replace fprintf(stderr, ...) calls
There is still some programs left to be updated for this.

Many of these programs would stop on the first file that they
could not open.
2013-11-13 11:41:43 +00:00
sin f349dd5987 Use arg.h as much as possible and add usage() where missing
Rename eusage() to usage() as well.
2013-10-07 17:13:01 +01:00
sin c1730c78de Use int instead of char for getc() 2013-07-20 11:35:56 -04:00
David Galos 9f8deb4b23 Tar compiles on BSD, thanks Roberto E. Vargas Caballero. Also remove tons of trailing whitespace. 2013-07-20 01:27:42 -04:00
Federico G. Benavento 5c7b7e3fa8 s/getopt/ARGBEGIN/ wc 2013-03-10 21:12:10 -03:00
Connor Lane Smith 6be3e82218 add cksum 2011-06-10 04:14:05 +01:00
Connor Lane Smith ff97891dad add fold 2011-06-08 21:30:33 +01:00
Connor Lane Smith 0a3a8c55e4 ls cleanup 2011-05-27 23:56:43 +01:00
Connor Lane Smith 6ef3d9174b add ls; simpler pwd 2011-05-26 04:01:20 +01:00
Connor Lane Smith f458397d5a no, getopt.h is gnu specific 2011-05-24 18:58:36 +01:00
pancake da547fb294 add missing #include <getopt.h>
do not override CC in config.mk
2011-05-24 14:34:26 +02:00
Connor Lane Smith 9714d7b1d3 getopt 2011-05-24 01:13:34 +01:00
Connor Lane Smith 8e26716a5a initial commit 2011-05-23 02:36:34 +01:00