Andreas Kling
6b585f9dd7
Shell: Fix an error message incorrectly complaining about lstat() failure.
...
The syscall used is actually stat(), so let's be correct about that.
2019-05-31 06:07:09 +02:00
Andreas Kling
07c3cc01ec
LibC: Move wait-related stuff to <sys/wait.h>. #POSIX
2019-05-30 15:12:09 +02:00
Andreas Kling
96db775ac1
LibC: Add setenv().
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If I'm understanding the standard C library correctly, setenv() copies while
putenv() does not. That's really confusing and putenv() basically sucks.
To know which environment variables to free on replacement and which ones to
leave alone, we keep track of the ones malloced by setenv in a side table.
This patch also moves Shell to using setenv() instead of putenv().
Fixes #29 .
2019-05-30 03:22:18 +02:00
Robin Burchell
9947ee9566
Shell: Allow * and ? wildcard expansion in arguments
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Should also presumably allow for escaping and such, but this is a start.
Fixes #112 .
2019-05-28 00:17:39 +02:00
Andreas Kling
dd595fe865
Shell: A '>' redirection target should be truncated.
2019-05-26 14:57:12 +02:00
Andreas Kling
0fa098845f
Shell: When a command is terminated by a signal, print signal description.
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Previously we were only printing the signal number (except for SIGINT.)
2019-05-26 02:35:25 +02:00
Robin Burchell
aee99b05a6
Shell: Add append operator (>>)
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Fixes #93 .
2019-05-26 01:32:05 +02:00
Robin Burchell
abb7455163
LibC/Shell: Add unsetenv(), and unset builtin calling it in Shell.
2019-05-16 14:32:09 +02:00
Robin Burchell
b2dd12daac
LibC: Change putenv (and getenv) to not copy, but directly return the environ values.
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This is in keeping with how putenv should function. It does mean that
the shell's export command now leaks, but that's not a difficult fix.
Contributes to #29 .
2019-05-16 14:32:09 +02:00
Andreas Kling
43604bf71a
LibC+Shell: Make system() actually work.
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system() will now fork off a child process and execute the command via
/bin/sh -c. There are probably some things to fix here, but it's a start.
2019-05-13 04:52:55 +02:00
Andreas Kling
c838a2e652
Shell: Add "umask" builtin for reading/writing the shell's umask.
2019-05-10 17:39:30 +02:00
Andreas Kling
d53941a466
Shell: Support basic line editing with left/right arrow keys.
2019-05-07 04:17:05 +02:00
Andreas Kling
16a5a76445
Shell: Add "history" command that shows command history.
2019-05-07 01:43:21 +02:00
Andreas Kling
ba7364b43b
Shell: Move line editing to a separate class.
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To be clear, there isn't really any line editing yet. But there is
going to be, so let's have it in its own class.
2019-05-07 01:39:41 +02:00
Andreas Kling
fe73543d41
Shell: Move the Shell to a separate directory and let's call it "Shell" :^)
2019-05-07 01:12:08 +02:00
