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Improve system call documentation

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This change also introduces partial faccessat() support for zipos and
makes some slight breaking changes in errno results. close() is fixed
to use `EBADF` rather than `EINVAL` and we're now using `ENOTSUP` not
`EOPNOTSUPP` to indicate that zipos doesn't support a system call yet
This commit is contained in:
Justine Tunney 2022-10-02 07:42:44 -07:00
parent 0b5f84dd20
commit ad97775370
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GPG key ID: BE714B4575D6E328
18 changed files with 273 additions and 67 deletions
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3
libc/calls/fchownat.c
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@ -34,6 +34,7 @@
* @param gid is group id, or -1 to not change
* @param flags can have AT_SYMLINK_NOFOLLOW, etc.
* @return 0 on success, or -1 w/ errno
* @raise ENOTSUP if `dirfd` or `path` use zip file system
* @see chown(), lchown() for shorthand notation
* @see /etc/passwd for user ids
* @see /etc/group for group ids
@ -46,7 +47,7 @@ int fchownat(int dirfd, const char *path, uint32_t uid, uint32_t gid,
rc = efault();
} else if (_weaken(__zipos_notat) &&
(rc = __zipos_notat(dirfd, path)) == -1) {
STRACE("zipos fchownat not supported yet");
rc = enotsup();
} else {
rc = sys_fchownat(dirfd, path, uid, gid, flags);
}