Commit Graph

964 Commits

Author SHA1 Message Date
c68d040484 Scheduler: Make sure we are in the kernel's address space when resuming a blocked process 2022-10-30 19:10:46 +01:00
a7e4f2bdd2 sh: Make it much more versatile
This commit implements:
Argument matching, to show help and version
Support for running scripts
Support for parsing and running commands (via -c)

This is the first step to implementing the system() libc function.
2022-10-30 19:09:18 +01:00
e58aa361c8 sh: Show message when child called abort() 2022-10-30 18:36:52 +01:00
00f90246c8 Kernel: Implement very basic escape sequences for TextRenderer 2022-10-30 18:34:40 +01:00
08c4dac2c2 Kernel: Enable -Wvla 2022-10-30 18:20:16 +01:00
b4ccd786f9 remove-port.sh: export DESTDIR 2022-10-30 18:19:12 +01:00
97df9d8d3a Ports: Add nasm port 2022-10-30 18:14:57 +01:00
948361bec5 printf: Show which format specifier is unknown 2022-10-30 18:08:29 +01:00
d186d573dd libc: Document strftime in time.h 2022-10-30 17:48:54 +01:00
d5a6c7f27f libc: Implement strftime() 2022-10-30 17:47:47 +01:00
4c096bd36c uptime: break time down into more understandable units
80 seconds -> 1 minute, 20 seconds for example
647 seconds would be 10 minutes, 47 seconds
and more...
2022-10-30 10:31:59 +01:00
af0f4d2037 Kernel: Remove /dev/uptime
This information can now be fetched with clock_gettime.
2022-10-30 10:16:53 +01:00
6df5b8a703 Make backspace work 2022-10-30 10:08:52 +01:00
e640c6e245 Kernel, libc, userspace: Add file timestamps (atime,ctime,mtime) 2022-10-30 09:57:17 +01:00
8d46c9bbe2 Kernel, libc: Fix a big bug in printf()
Every time printf flushes the buffer to us in sprintf() or snprintf(), we call strncat to append the data.

But we want to start from the beginning in the first flush. What if there was data already there?
Well, we just append to the old data. Which is not good, and breaks snprintf()'s maximum size policy.

This fix sets the first byte of str to NULL, to avoid this.
2022-10-30 09:53:23 +01:00
e705810af3 apps: Add a new date utility
This program tells you the current date and time :)
2022-10-30 09:09:24 +01:00
e2b5c1bfdd uptime: Use clock_gettime instead of reading from /dev/uptime 2022-10-30 09:09:03 +01:00
324fb42ee2 libc: Add support for the new time functionality in the kernel 2022-10-30 09:08:29 +01:00
688a640a16 Kernel: Add the clock_gettime syscall, which replaces clock as it can be used for more stuff 2022-10-30 09:07:59 +01:00
baf97840e9 Kernel: Keep track of boot time 2022-10-30 09:07:03 +01:00
a9da58421f su: do not pass out-of-bounds argv to execv when argc is 1 2022-10-29 20:13:40 +02:00
d1e4bc5504 Kernel: Use framebuffer virtual address instead of physical address
Just found out bootboot.fb_ptr was the physical address, not virtual.
That explains why we were getting page faults while writing to the physical address of the framebuffer. (we were in a user address space when doing so)
So this should probably make the system much more stable!!
2022-10-29 20:10:49 +02:00
8395eb16f6 session: endpwent on exit 2022-10-29 10:18:39 +02:00
7aad256acd Update README.md 2022-10-29 10:13:36 +02:00
33ed6e5c17 su: endpwent on exit 2022-10-29 10:01:51 +02:00
8375701bf6 session, su: Split password-collecting logic into a separate function 2022-10-29 10:01:44 +02:00
3e052c72a0 init: don't wait before executing the session binary 2022-10-29 10:01:17 +02:00
32e09d3417 libc: Stub out more functionality so part of binutils builds 2022-10-29 09:39:12 +02:00
9db1e8cdb3 Inform of the default user configuration in the MOTD 2022-10-28 21:58:17 +02:00
e9092ab235 sh: Display username instead of shell's PID in prompt 2022-10-28 21:57:07 +02:00
0b838572e1 apps: Add a new session program which manages user login 2022-10-28 21:56:52 +02:00
702cc0442c endpwent: Close all opened instances of /etc/passwd, including those used by getpwuid() and getpwnam() 2022-10-28 21:02:55 +02:00
2ca20c1a1e compilation fix 2022-10-28 21:02:23 +02:00
91470851cd stat: Show username of file owner 2022-10-28 21:00:33 +02:00
5aba1c5f15 su: Make it setuid root, ask for a password, and accept a username
It asks for a password only if you are not root, obviously.
2022-10-28 20:57:13 +02:00
477af66cdc ps: Show usernames of processes, using getpwuid() 2022-10-28 20:55:39 +02:00
7d0e442cde libc: Add /etc/passwd and the pwd.h API
getpwent, getpwnam, getpwuid... they may have been a pain to implement but once they work they're awesome :)

Right now passwords are stored in plaintext in the world-readable passwd file, which is not good.
But I don't have any sort of hashing implemented so it'll stay that way for now.
2022-10-28 20:55:00 +02:00
e05f3f5325 Kernel: Read file modes from the initrd, filtering out write permissions 2022-10-28 20:52:10 +02:00
a2d9ada4dc oopsie 2022-10-28 19:38:04 +02:00
b8296eb92d su: Also set group ID 2022-10-28 17:55:56 +02:00
fa0dc4b18c apps: Remove sym and crash
Not necessary anymore.
2022-10-28 17:53:22 +02:00
68d0d0b759 apps: Add a new su utility 2022-10-28 17:52:46 +02:00
8f0e358360 libc: Add setuid, setgid, seteuid, setegid 2022-10-28 17:52:39 +02:00
09a615bd99 Kernel, libc: Expose processes' UID and GID in pstat() 2022-10-28 17:31:34 +02:00
acdc2d3ad7 init: Open /dev/console for appending 2022-10-28 17:31:00 +02:00
17671fd435 libc: Implement getuid, geteuid, getgid, getegid 2022-10-28 17:24:28 +02:00
1c4f1ab867 Kernel, libc: Add setuid() and setgid() system calls 2022-10-28 17:19:26 +02:00
2269ec267c apps: Add a 'stat' utility 2022-10-28 17:14:20 +02:00
b1729689df libc: Open stdout and stderr write-only on init 2022-10-28 17:14:09 +02:00
77d331b258 init: Open /etc/motd with O_CLOEXEC to avoid leaking this file to children 2022-10-28 17:13:45 +02:00