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Implement basic chmod() syscall and /bin/chmod helper.

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Only raw octal modes are supported right now.
This patch also changes mode_t from 32-bit to 16-bit to match the on-disk
type used by Ext2FS.

I also ran into EPERM being errno=0 which was confusing, so I inserted an
ESUCCESS in its place.
This commit is contained in:
Andreas Kling 2019-01-29 04:55:08 +01:00
parent ad53f6afd3
commit c30e2c8d44
22 changed files with 156 additions and 4 deletions
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2
Kernel/Syscall.cpp
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@ -221,6 +221,8 @@ static dword handle(RegisterDump& regs, dword function, dword arg1, dword arg2,
return current->gui$set_global_cursor_tracking_enabled((int)arg1, (bool)arg2);
case Syscall::SC_rmdir:
return current->sys$rmdir((const char*)arg1);
case Syscall::SC_chmod:
return current->sys$chmod((const char*)arg1, (mode_t)arg2);
default:
kprintf("<%u> int0x80: Unknown function %u requested {%x, %x, %x}\n", current->pid(), function, arg1, arg2, arg3);
break;