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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
LibC/unistd.cpp
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@@ -97,7 +97,7 @@ int open(const char* path, int options, ...)
{
va_list ap;
va_start(ap, options);
int rc = syscall(SC_open, path, options, va_arg(ap, mode_t));
int rc = syscall(SC_open, path, options, (mode_t)va_arg(ap, unsigned));
va_end(ap);
__RETURN_WITH_ERRNO(rc, rc, -1);
}