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42 shell school project, support for job-control, shell script, globbing, aliases, ..

Home Page: https://www.42.fr

License: The Unlicense

CMake 0.63% Makefile 1.40% C 75.40% Shell 22.13% Elixir 0.44%

c job-control shell shell-script

42sh's Introduction

42sh

Grade:

125/100 (outstanding project * 5)

Subject:

Subject

Mandatory part:

Prompt without line edition.
Builtins cd, echo, exit, env, setenv, unsetenv with there options.
Executing simple commands with there parameters using PATH.
Support for redirection >, >>, <and |.
Logical operand &&and ||.
Separator ;.

Optional feature (five of theses are mandatory to validate the project):

Optional feature highly appreciated:

Job Control and builtins job, fg, bg and operand &.
Shell Scripting: bang (!), variable assignements, brace group, if, while, until, for and functions

Bonuses

Advanced dollar expansion $(..), $((..)), $[..]
Tilde expansion ~, ~<username>, ~-, ~+
Range expansion {<START>..<END>} and {<START>..<END>..<INCREMENT>}
Advanced redirections operator &>, &>>, <>, <<< and |&
Aliases, builtin alias alias [-p] [name[=value] …] and expansion
Builtin env advanced options -u name and [name=value]
Inline variables [name=value] binary [arguments...]
Binary hashtable
Rights in the PATH

Usage

Usage: ./42sh [option] [script-file] [script arguments...]
ush options:
	--help: this *useful* help message!
ush keymap:
	<ctrl+A|home>: Go to begin of line.
	<ctrl+E|end>: Go to end of line.
	<ctrl+V>: Enter visual mode.
	<ctrl+Y>: Yank in visual mode.
	<ctrl+P>: Paste.
	<ctrl+D>: Exit or delete in visual mode.
	<ctrl+C>: Cancel line edition.
	<ctrl+L>: Clear the screen.
	<shift+[left|right]>: Move per word.
	<shift+[up|down]>: Move per line.
	<up>: Go up in the history.
	<down>: Go down in the history.
	!!: Retype the last command.
	!n: Retype the n command from the begin of history.
	!-n: Retype the -n command from the last command.
	!name: Search for a command beginning with name.

42sh's People

Contributors

Stargazers

Watchers

Forkers

spenderj backlogak

42sh's Issues

bug 9

(ush)$>cd
(ush)$>[CTRL-D]

	trace de SAN:

Direct leak of 4608 byte(s) in 1 object(s) allocated from:
#0 0x7faf041bed28 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.3+0xc1d28)
#1 0x55b230a88f31 in ft_malloc src/mem/alloc.c:22
#2 0x55b230a88fb6 in ft_realloc src/mem/alloc.c:40
#3 0x55b230a89d8e in ft_vecalloc src/ds/alloc.c:50
#4 0x55b230a842e8 in ft_vecgrow src/ds/grow.c:36
#5 0x55b230a8480c in ft_vecnpush src/ds/npush.c:40
#6 0x55b230a8545b in ft_vecpush src/ds/push.c:27
#7 0x55b230a70081 in sh_evalargv src/eval/argv.c:48
#8 0x55b230a7406c in sh_evalsimple src/eval/simple.c:42
#9 0x55b230a70ca5 in sh_evalcmd src/eval/cmd.c:23
#10 0x55b230a7244d in sh_evalpipeline src/eval/pipeline.c:21
#11 0x55b230a6f476 in sh_evalandor src/eval/andor.c:39
#12 0x55b230a7217e in sh_evallist src/eval/list.c:70
#13 0x55b230a6f084 in sh_eval src/eval.c:81
#14 0x55b230a7f3e1 in sh_run src/shell.c:111
#15 0x55b230a7aeb0 in main src/main.c:39
#16 0x7faf03d7e2b0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202b0)

Indirect leak of 256 byte(s) in 1 object(s) allocated from:
#0 0x7faf041bed28 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.3+0xc1d28)
#1 0x55b230a88f31 in ft_malloc src/mem/alloc.c:22
#2 0x55b230a88fb6 in ft_realloc src/mem/alloc.c:40
#3 0x55b230a89d8e in ft_vecalloc src/ds/alloc.c:50
#4 0x55b230a842e8 in ft_vecgrow src/ds/grow.c:36
#5 0x55b230a8480c in ft_vecnpush src/ds/npush.c:40
#6 0x55b230a8545b in ft_vecpush src/ds/push.c:27
#7 0x55b230a702bb in sh_evalargv src/eval/argv.c:64
#8 0x55b230a7406c in sh_evalsimple src/eval/simple.c:42
#9 0x55b230a70ca5 in sh_evalcmd src/eval/cmd.c:23
#10 0x55b230a7244d in sh_evalpipeline src/eval/pipeline.c:21
#11 0x55b230a6f476 in sh_evalandor src/eval/andor.c:39
#12 0x55b230a7217e in sh_evallist src/eval/list.c:70
#13 0x55b230a6f084 in sh_eval src/eval.c:81
#14 0x55b230a7f3e1 in sh_run src/shell.c:111
#15 0x55b230a7aeb0 in main src/main.c:39
#16 0x7faf03d7e2b0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202b0)

Indirect leak of 3 byte(s) in 1 object(s) allocated from:
#0 0x7faf041bed28 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.3+0xc1d28)
#1 0x55b230a88f31 in ft_malloc src/mem/alloc.c:22
#2 0x55b230a894eb in ft_strdup src/str/str_2.c:41
#3 0x55b230a702f4 in sh_evalargv src/eval/argv.c:64
#4 0x55b230a7406c in sh_evalsimple src/eval/simple.c:42
#5 0x55b230a70ca5 in sh_evalcmd src/eval/cmd.c:23
#6 0x55b230a7244d in sh_evalpipeline src/eval/pipeline.c:21
#7 0x55b230a6f476 in sh_evalandor src/eval/andor.c:39
#8 0x55b230a7217e in sh_evallist src/eval/list.c:70
#9 0x55b230a6f084 in sh_eval src/eval.c:81
#10 0x55b230a7f3e1 in sh_run src/shell.c:111
#11 0x55b230a7aeb0 in main src/main.c:39
#12 0x7faf03d7e2b0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202b0)

SUMMARY: AddressSanitizer: 4867 byte(s) leaked in 3 allocation(s).

######################################################

Line edition history search mode

Check builtins exit codes

alias

Movement without full reprint does not handle visual mode

https://github.com/uael/21sh/blob/7316ed5f3db6d9cf3505d78132dce952628c2761/vendor/librl/src/edit/move.c#L15

Autocompletion

Bug5

base64 /dev/urandom | head -c 1000 | grep 42 | wc -l | sed -e 's/1/Yes/g' -e 's/0/No/g'

Lexer handle '(', '{' and '[' non closing

Signal handling

cleanup and leaks

bug 13

si Malloc renvoie Null le projet segfault, on peut le verifier en remplacant malloc par notre propre malloc

bug 12

-doit afficher ls
true || false && ls

Builtins

bug 2

/t/21sh ❯ ls\

;
ush: ls;: Command not found
ls;
^
/t/21sh ❯

Globbing

http://pubs.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_13

bug 8

env -i env

Unicode

Handle unicode properly

Fixes aggregation scopes

Quote expansion

fix : echo '\0'

Bug1

ush: Expected <filename>' got in'
echo toto > in ; cat -e >out<in ; cat out ; rm out in

Fix var scope

$> FOO=bar echo $FOO

$> echo $FOO
bar
$> FOO=bar; echo $FOO
bar
$> FOO=baz
$> echo $FOO
baz
$> FOO= echo $FOO
baz
$> echo $FOO
baz
$> FOO=
$> echo $FOO
$>

$> echo >&- 2>&-
$> /a | cat /dev/random | base64 > tutu
$> cat | merde | ls
$> cat /dev/random|base64|head -c8 (ca va etre test en correction ca )