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96 Commits

Author SHA1 Message Date
Bananymous 79851394b3 Kernel/LibC/Userspace: Add SYS_POWEROFF + cli tool 
You can now shutdown/reboot banan-os with the poweroff cli tool.

Reboot doesn't seem to work on qemu.
 2023-09-28 12:36:47 +03:00
Bananymous 85b1252b9e Userspace: Use printf length modifiers when printing 2023-09-28 11:49:31 +03:00
Bananymous c84b66d078 Shell: String leading and trailing whitespace from commands 
This fixes a bug of inserting empty argument if command had trailing
whitespace
 2023-09-28 10:28:49 +03:00
Bananymous ec2baeb276 Sync: Add some argument parsing to sync(1) 
You can specify --block to make the program wait until sync is
complete.
 2023-09-27 00:37:23 +03:00
Bananymous fc953df281 Kernel/LibC: remove PATH resoltion from kernel 
I have no idea why I had made PATH environment variable parsing
to be part of the kernel. Now the shell does the parsing and
environment syscall is no longer needed.
 2023-09-23 03:08:14 +03:00
Bananymous 5fae3cec2a Kernel: Implement SYS_SYNC and add sync executable to userspace 
You can (and have to) manually sync disk after writes to it.
 2023-09-11 01:26:27 +03:00
Bananymous 9b4e2e1e21 Kernel: Add basic dd command 
This only supports if, of, bs, count and status=progress
 2023-09-10 01:19:47 +03:00
Bananymous 720bc418a6 All: Clear lines with only whitspace in them 2023-09-10 00:31:42 +03:00
Bananymous afe95be42f Shell: Clean exit on ^D and use getchar() 
Use getchar() instead of fread(&ch, 1, sizeof(char), stdin). This
is much cleaner.
 2023-09-07 15:51:05 +03:00
Bananymous 14ac1c9904 Init: use read instead of fread() 
This allows actually correct behaviour. My fread implementation is
flawed. It should not return on '\n'
 2023-09-07 15:47:59 +03:00
Bananymous 4363118d9d Snake render grid lines without extra space after last '#' 2023-09-05 14:35:53 +03:00
Bananymous f46f5b2050 Snake: Reorder apple generation/snake body update 
If new apple was generated to heads previous position after update,
it would not render.
 2023-09-05 14:30:30 +03:00
Bananymous ddd36af0f1 Kernel: Add /dev/tty symlink that targets the current tty 2023-09-05 01:07:52 +03:00
Bananymous 2e2a913412 Userspace: Implement basic snake game :) 2023-09-04 14:30:45 +03:00
Bananymous b05cf9ef09 BuildSystem: Base sysroot is now distributed as a tar ball 
This allows file and directory permissions work as intended.

cmake is now filled with 'sudo' but with sudo timeout this should be
fine.
 2023-08-23 10:38:21 +03:00
Bananymous a74eb357a1 Shell: hostname is not parsed from /etc/hostname 2023-08-23 10:38:21 +03:00
Bananymous 8eb71084f0 Shell: use process groups more properly 2023-08-22 14:54:50 +03:00
Bananymous 6ada36d3cb Shell/init: We now use pgrp instead of pid and init open terminal 2023-08-22 11:37:04 +03:00
Bananymous 30463c9082 Id: Print username corresponding to uid/euid 
Also print euid and egid if they differ from uid or gid.
 2023-08-18 15:36:51 +03:00
Bananymous eb98d70a0b Shell: command execution and parsing support piped commands 
There is still problems with "blocking" builtin commands (time),
return value, ...
 2023-08-17 12:05:38 +03:00
Bananymous 5bd7099b96 Shell: add basic printf test 2023-08-16 10:49:34 +03:00
Bananymous 5806a6484f cat: use 1025 buffer. this allows reads to be 1024 byte 
reading from disk currently returns ENOTSUP if buffer size is not
multiple of sector size.
 2023-08-16 09:33:14 +03:00
Bananymous 0fa5401800 Shell: $? returns last return value 2023-08-15 09:17:46 +03:00
Bananymous b30f4cbfb5 Userspace: Add basic whoami command 2023-08-15 09:03:51 +03:00
Bananymous ba37183c9c Shell: '\u' in PS1 is replaced with username corresponding to euid 2023-08-14 14:55:23 +03:00
Bananymous 2f298a1979 Shell: ^A moves cursor to the beginning of line 2023-08-14 12:26:22 +03:00
Bananymous 313b00b11f Userspace: implement basic stat 
I tried to format the output pretty much how linux does, except for
uid and git -> name resolution which is not implemented
 2023-08-11 10:30:50 +03:00
Bananymous 9fe878bbec Shell: Print if the process exited because of a signal 2023-08-01 14:24:36 +03:00
Bananymous 679d47131d BuildSystem: Edit build flags regarding sse and warnings 2023-07-31 22:31:17 +03:00
Bananymous 5e434f5131 Kernel: Hardware exceptions now sends signals to userspace 2023-07-30 14:34:15 +03:00
Bananymous 00f1f30a08 Kernel: Userspace sets the foreground process and Shell handles ^C 2023-07-28 18:10:36 +03:00
Bananymous adb14ba373 Kernel: Userspace signal handlers are now called one at a time 
I added a syscall for telling the kernel when signal execution has
finished. We should send a random hash or id to the signal trampoline
that we would include in the syscall, so validity of signal exit can
be confirmed.
 2023-07-23 13:34:53 +03:00
Bananymous ad756c36fc Kernel/LibC: Add SYS_KILL/kill() 2023-07-21 19:27:38 +03:00
Bananymous dcd4d0daeb Kernel/LibC: Add bareboness signals 
You can now call raise() to raise a signal. Signal handlers are
not yet supported, but the handling works :)
 2023-07-21 15:45:02 +03:00
Bananymous e341a36287 Init: Use the new pwd.h api for user parsing 2023-07-13 12:01:41 +03:00
Bananymous 5c94a583bc Userspace: add basic 'touch' command 2023-07-10 16:38:15 +03:00
Bananymous 6e1fc2766f tee: indent with tabs 2023-07-10 16:18:08 +03:00
Bananymous d3bb00cb55 Userspace: Add basic tee command 2023-07-10 16:07:53 +03:00
Bananymous 683c2a68cd Shell: $(...) expansion works now :) 2023-07-06 23:22:57 +03:00
Bananymous ad98181069 Shell: you can call Shell -c ... to invoke the shell as interpreter 2023-07-06 23:22:49 +03:00
Bananymous 21bd87bb07 Userspace: Shell now has 'env' for printing environment 2023-07-06 10:32:43 +03:00
Bananymous 79450df04c Userspace: Shell imporove 'time' command 2023-07-06 09:45:04 +03:00
Bananymous 7f8b7b811e Userspace: Shell now has time builtin 2023-07-06 00:39:04 +03:00
Bananymous 4dce0f9074 Userspace: u8sum fix error message 2023-06-19 10:31:23 +03:00
Bananymous 54f89cba33 Userspace: Shell now processes $ arguments 2023-06-19 01:39:24 +03:00
Bananymous de88f60d1a Userspace: Shell argument parsing now appriciates quotes 2023-06-19 01:07:00 +03:00
Bananymous f7060970e6 Userspace: Shell argument parse now results in BAN::String 2023-06-19 00:34:44 +03:00
Bananymous e7a98ac6cc Userspace: Shell now sets SHELL environment variable 2023-06-18 23:35:51 +03:00
Bananymous 326a30d1af Userspace: Add u8sum 
This program caluculates the sum of bytes in file mod 256
 2023-06-12 20:36:16 +03:00
Bananymous 38dff41e25 Userspace: Shell processes PS1 '\~' as cwd and implement cd 2023-06-12 02:03:13 +03:00