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Improve zip read-only filesystem

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readdir() will now always yield an inode that's consistent with stat()
on ZipOS and Windows in general. More APIs have been updated to return
the appropriate error code when inappropriately trying to do ops, like
sockets, with a zip file descriptor. The path normalization algorithms
are now fully fleshed out. Some socket APIs have been fixed so they'll
raise EBADF vs. ENOTSOCK appropriately. Lastly seekdir() will now work
properly on NetBSD and FreeBSD (not sure why anyone would even use it)
This commit is contained in:
Justine Tunney 2023-08-16 15:53:06 -07:00
parent dc6c67256f
commit b76b2be2d0
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GPG key ID: BE714B4575D6E328
47 changed files with 644 additions and 269 deletions
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7
libc/calls/copy_file_range.c
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@ -84,7 +84,6 @@ static void copy_file_range_init(void) {
* @raise EXDEV if source and destination are on different filesystems
* @raise EBADF if `infd` or `outfd` aren't open files or append-only
* @raise EPERM if `fdout` refers to an immutable file on Linux
* @raise ENOTSUP if `infd` or `outfd` is a zip file descriptor
* @raise ECANCELED if thread was cancelled in masked mode
* @raise EINVAL if ranges overlap or `flags` is non-zero
* @raise EFBIG if `setrlimit(RLIMIT_FSIZE)` is exceeded
@ -114,8 +113,10 @@ ssize_t copy_file_range(int infd, int64_t *opt_in_out_inoffset, int outfd,
(opt_in_out_outoffset &&
!__asan_is_valid(opt_in_out_outoffset, 8)))) {
rc = efault();
} else if (__isfdkind(infd, kFdZip) || __isfdkind(outfd, kFdZip)) {
rc = enotsup();
} else if (__isfdkind(outfd, kFdZip)) {
rc = ebadf();
} else if (__isfdkind(infd, kFdZip)) {
rc = exdev();
} else {
rc = sys_copy_file_range(infd, opt_in_out_inoffset, outfd,
opt_in_out_outoffset, uptobytes, flags);