nmap: make compatible with Big Sur

[claui]

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Adds an upstream patch that fixes an integer truncation issue, which prevented nmap from running on on Big Sur.

[SeekingMeaning]

Does nmap/nmap@05763b6 work on Big Sur?

[claui]

@SeekingMeaning It does for me.

[SeekingMeaning]

Ah sorry, I didn't realize you were already using it

[BrewTestBot]

🤖 A scheduled task has triggered a merge.

[logicito]

Is there a version of Nmap for macOS Big Sur that I can download? Thanks a lot

[SMillerDev]

Just installing nmap from homebrew will work

[logicito]

Just installing nmap from homebrew will work

That's how I installed it on my macOS Big Sur Beta 5, when I run it I get the following message:

brosenz@MacBook-Pro ~ % nmap -v -A scanme.nmap.org
Starting Nmap 7.80 ( https://nmap.org ) at 2020-08-22 12:33 EDT
Assertion failed: (res > 7), function nsock_library_initialize, file nsock_pool.c, line 307.
zsh: abort nmap -v -A scanme.nmap.org

[logicito]

I check the installation log and found this error:

==> Summary
🍺 /usr/local/Cellar/openssl@1.1/1.1.1g: 8,059 files, 18MB
==> Installing nmap
==> Pouring nmap-7.80_1.catalina.bottle.1.tar.gz
Error: The brew link step did not complete successfully
The formula built, but is not symlinked into /usr/local
Could not symlink bin/ncat
Target /usr/local/bin/ncat
already exists. You may want to remove it:
rm '/usr/local/bin/ncat'

To force the link and overwrite all conflicting files:
brew link --overwrite nmap

To list all files that would be deleted:
brew link --overwrite --dry-run nmap

[claui]

Target /usr/local/bin/ncat already exists.

Looks like a conflict with some unrelated ncat binary.

[dwhite-tillster]

I have a similar issue which started with "Assertion failed: (res > 7), function nsock_library_initialize, file nsock_pool.c, line 307" after upgrading to Big Sur bur and it turns out to be a result of /usr not being writable.

I receive the same error
"Error: Could not symlink share/man/de/man1/nmap.1
/usr/local/share/man/de/man1 is not writable."
response and was able to do a chmod but still get the error.

When I do a touch /usr/test-file I get a "touch: test-file: Operation not permitted" error.

Any suggestions?