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cosmopolitan/libc/runtime/zipos-inode.c

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Improve zip read-only filesystem 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)
2023-08-16 22:53:06 +00:00
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
flip et / noet in modelines `et` means `expandtab`. ```sh rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\) :vi/vi: \1 xoet\2:vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2 :vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/' ```
2023-12-08 03:11:56 +00:00
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
Improve zip read-only filesystem 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)
2023-08-16 22:53:06 +00:00
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2023 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/limits.h"
#include "libc/runtime/zipos.internal.h"
#include "libc/stdio/stdio.h"
Rewrite special file handling on Windows This change gets GNU grep working. What caused it to not work, is it wouldn't write to an output file descriptor when its dev/ino equaled /dev/null's. So now we invent special dev/ino values for these files
2023-10-14 08:06:00 +00:00
#include "libc/str/str.h"
Improve zip read-only filesystem 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)
2023-08-16 22:53:06 +00:00
#include "libc/zip.internal.h"
uint64_t __zipos_inode(struct Zipos *zipos, int64_t cfile, //
const void *name, size_t namelen) {
Revert "Rewrite ZipOS" This reverts commit b01282e23ef0b9f68c9979d0c419fcfe64d5ca7c. Some tests are broken. It's not clear how it'll impact metal yet. Let's revisit the memory optimization benefits of this change again sometime soon.
2023-10-03 21:40:03 +00:00
unassert(cfile >= 0);
Improve zip read-only filesystem 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)
2023-08-16 22:53:06 +00:00
if (cfile == ZIPOS_SYNTHETIC_DIRECTORY) {
if (namelen && ((char *)name)[namelen - 1] == '/') --namelen;
Rewrite special file handling on Windows This change gets GNU grep working. What caused it to not work, is it wouldn't write to an output file descriptor when its dev/ino equaled /dev/null's. So now we invent special dev/ino values for these files
2023-10-14 08:06:00 +00:00
cfile = INT64_MIN | __fnv(name, namelen);
Improve zip read-only filesystem 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)
2023-08-16 22:53:06 +00:00
}
return cfile;
}
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