[Bug 292282] NFS Shows Empty Filenames Under Linux Emulation

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=292282

--- Comment #10 from Jerry Williams <jwillia3@proton.me> ---
(In reply to Rick Macklem from comment #9)

Using opendir() still exhibits the behaviour.
I didn't know if uploading a binary was appropriate here, so I posted it here
https://codeberg.org/jwillia3/292282

test.c:

    #include <dirent.h>
    #include <stdio.h>

    int main(int argc, char **argv)
    {
        DIR     *dirp;
        struct dirent *ent;
        int     n;

        n = 0;
        dirp = opendir(argv[1]);
        while ((ent = readdir(dirp))) {
            printf("%-8d  %s\n", (int) ent->d_fileno, ent->d_name);
            n++;
        }
        closedir(dirp);

        printf("%d entries\n", n);
    }

transcript:

        ~$ doas -s
        # pkg install linux-rl9-devtools
        Updating FreeBSD-ports repository catalogue...
        FreeBSD-ports repository is up to date.
        Updating FreeBSD-ports-kmods repository catalogue...
        FreeBSD-ports-kmods repository is up to date.
        All repositories are up to date.
        The following 1 package(s) will be affected (of 0 checked):

        New packages to be INSTALLED:
                linux-rl9-devtools: 9.6_1 [FreeBSD-ports]

        Number of packages to be installed: 1

        The process will require 280 MiB more space.
        86 MiB to be downloaded.

        Proceed with this action? [Y/n]:
        [1/1] Fetching linux-rl9-devtools-9.6_1~5a97eb46b1.pkg: 100%   86 MiB 
45.0MB/s    00:02
        Checking integrity... done (0 conflicting)
        [1/1] Installing linux-rl9-devtools-9.6_1...
        [1/1] Extracting linux-rl9-devtools-9.6_1: 100%
        # ^D
        ~$ /compat/linux/bin/bash
        bash-5.1$ cc --version
        cc (GCC) 11.5.0 20240719 (Red Hat 11.5.0-5)
        Copyright (C) 2021 Free Software Foundation, Inc.
        This is free software; see the source for copying conditions.  There is
NO
        warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.

        bash-5.1$ cc $HOME/test.c -o linuxtest
        bash-5.1$ file linuxtest
        linuxtest: ELF 64-bit LSB executable, x86-64, version 1 (SYSV),
dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2,
BuildID[sha1]=94f5823b0f59ead9e040aa3282d54e2e76c7bb6f, for GNU/Linux 3.2.0,
not stripped

        bash-5.1$ ./linuxtest /mnt/tmp
        2964769   .
        2         ..
        2964770   emptyfile
        2964771   test.c
        2964772   test
        2964773   a.out
        0
        0
        0
        0
        0
        0
        0
        0
        0
        0
        0
        0
        0
        0
        0
        21 entries

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