Is the FreeBSD source code for all its pieces (individually) still
available via FTP? It didn't seem so at ftp://ftp.freebsd.org/ .
It looks like the choices are now 1) GIT, perhaps still
2) Subversion, and 3) download and unpack an entire system tarball
of ~180MB.

In any case, the actual question I'm trying to answer is:
Does jot(1) use arc4random(3) [as its man page says] or does it
use arc4random_uniform(3)?

Thanks in advance, and Merry Christmas.
-WBE

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Winston <wbe@ubeblock.psr.com.invalid> wrote in <ydlf08ahbz.fsf@UBEblock.psr.com>:

Is the FreeBSD source code for all its pieces (individually) still
available via FTP? It didn't seem so at ftp://ftp.freebsd.org/ .
It looks like the choices are now 1) GIT, perhaps still
2) Subversion, and 3) download and unpack an entire system tarball
of ~180MB.

In any case, the actual question I'm trying to answer is:
Does jot(1) use arc4random(3) [as its man page says] or does it
use arc4random_uniform(3)?

Thanks in advance, and Merry Christmas.
-WBE

Merry Christmas!

Looks like it uses arc4random.

From /usr/src/usr.bin/jot on my FreeBSD-12 system:

321 for (i = 1; i <= reps || infinity; i++) {
322 if (use_random)
323 y = random() / divisor;
324 else
325 y = arc4random() / divisor;
326 if (putdata(y * x + begin, !(reps - i)))
327 errx(1, "range error in conversion");
328 }
329 } else
330 for (i = 1, x = begin; i <= reps || infinity; i++, x += s)
331 if (putdata(x, !(reps - i)))
332 errx(1, "range error in conversion");
333 if (!nofinalnl)
334 putchar('\n');
335 exit(0);
336 }
337
338 /*
339 * Send x to stdout using the specified format.
340 * Last is true if this is the set's last value.
jot.c lines 307-340/517 byte 8665/12548 69% (press RETURN)

--
"But you've got to hand it to IBM, they know how to design
hardware. The servers all had handles to pick them up and throw
them out of the window...." -- Juergen Nieveler in the Monastery

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I originally asked:

Does jot(1) use arc4random(3) [as its man page says] or does it
use arc4random_uniform(3)?

Thanks in advance, and Merry Christmas.

to which mikea@mikea.ath.cx very kindly replied:

Merry Christmas!

Looks like it uses arc4random.

From /usr/src/usr.bin/jot on my FreeBSD-12 system:

321 for (i = 1; i <= reps || infinity; i++) {
322 if (use_random)
323 y = random() / divisor;
324 else
325 y = arc4random() / divisor;
326 if (putdata(y * x + begin, !(reps - i)))
327 errx(1, "range error in conversion");
328 }
329 } else
330 for (i = 1, x = begin; i <= reps || infinity; i++, x += s)
331 if (putdata(x, !(reps - i)))
332 errx(1, "range error in conversion");
333 if (!nofinalnl)
334 putchar('\n');
335 exit(0);
336 }
337
338 /*
339 * Send x to stdout using the specified format.
340 * Last is true if this is the set's last value.
jot.c lines 307-340/517 byte 8665/12548 69% (press RETURN)

THANK YOU! By providing that bit of the source, you even answered my
more specific question: What random number function does "jot -r" use?
[I didn't consider jot might use different ones in different cases.]
I see above it uses random().

I've also now discovered sort of an answer to my first question:

Is the FreeBSD source code for all its pieces (individually) still
available via FTP?

While it's HTTPS, not FTP, I see the source for the individual programs
(such as jot.c) are available at github without having to log in, set up
an account, etc., so it's just as easy to use as the FTP tree was.

Thanks, Mike! Now, back to trying to figure out why I'm getting
skewed results in certain cases ...
-WBE

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On 2021-12-25, Winston <wbe@UBEBLOCK.psr.com.invalid> wrote:

Is the FreeBSD source code for all its pieces (individually) still
available via FTP? It didn't seem so at ftp://ftp.freebsd.org/ .
It looks like the choices are now 1) GIT, perhaps still
2) Subversion, and 3) download and unpack an entire system tarball
of ~180MB.

You can look at individual files using the "cgit" FreeBSD Git
repository browser. I don't know if it was an infrastructure update
or if it's a technological improvement, but this is much faster
than the old svnweb.

https://cgit.freebsd.org/src/tree/usr.bin/jot/jot.c

--
Christian "naddy" Weisgerber naddy@mips.inka.de

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I previously asked:

Is the FreeBSD source code for all its pieces (individually) still
available via FTP? It didn't seem so at ftp://ftp.freebsd.org/ .
It looks like the choices are now 1) GIT, perhaps still
2) Subversion, and 3) download and unpack an entire system tarball
of ~180MB.

to which Christian Weisgerber <naddy@mips.inka.de> kindly replied:

You can look at individual files using the "cgit" FreeBSD Git
repository browser. I don't know if it was an infrastructure update
or if it's a technological improvement, but this is much faster
than the old svnweb.

https://cgit.freebsd.org/src/tree/usr.bin/jot/jot.c

That's good to know. For the moment, though, I found that the individual pieces are available from www.freebsd.org with just a web browser, using
a similar path to get just jot.c, so while it's HTTPS instead of FTP, at
least the pieces are available individually.
-WBE

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