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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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10
Kernel/Process.cpp
View file

@ -2120,3 +2120,13 @@ int Process::sys$read_tsc(dword* lsw, dword* msw)
read_tsc(*lsw, *msw);
return 0;
}
int Process::sys$chmod(const char* pathname, mode_t mode)
{
if (!validate_read_str(pathname))
return -EFAULT;
int error;
if (!VFS::the().chmod(String(pathname), mode, *cwd_inode(), error))
return error;
return 0;
}