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- Xref: sparky comp.unix.solaris:293 comp.unix.bsd:8742
- Path: sparky!uunet!auspex-gw!guy
- From: guy@Auspex.COM (Guy Harris)
- Newsgroups: comp.unix.solaris,comp.unix.bsd
- Subject: Re: Solaris 1.1 vs. Solaris 2.0 (BSD vs AT&T)
- Message-ID: <15433@auspex-gw.auspex.com>
- Date: 11 Nov 92 20:07:15 GMT
- References: <kzin.721442926@cc.gatech.edu>
- Sender: news@auspex-gw.auspex.com
- Followup-To: comp.unix.solaris
- Organization: Auspex Systems, Santa Clara
- Lines: 82
- Nntp-Posting-Host: auspex.auspex.com
-
- > I'm getting ready to buy a workstation..and I'm basically looking
- >at a used SS2, a new IPX, or a new SparcClassic. The advantage of the
- >first two, is that they run SunOS 4... unfortunately, the Classic only
- >runs Solaris 2. The reason I feel this is unfortunate, is that I very
- >much prefer the BSD programming model.
-
- Please define "the BSD programming model".
-
- > I mean.. if I have a program that uses bsd kernel calls (ioctl and fcntl
- > type things),
-
- "ioctl()" and "fcntl()" are both AT&T inventions; presumably you're
- referring to *particular* "ioctl()" and "fcntl()" calls?
-
- > will it compile under Solaris 2.0? or will I have to re-write it around
- > the AT&T type programming model?
-
- It depends on the "ioctl()" and "fcntl()" calls you're making.
-
- SVR4 picked up the SunOS "ttcompat" STREAMS module, which means that if
- it's been pushed onto the stream for a tty (which it should be, in
- SVR4), both the traditional V7/BSD terminal "ioctl"s, and the new-style
- SV "ioctl"s, should work. (Note, BTW, that 4.3-reno and later BSD
- releases have tty "ioctl"s that look a lot more like SV's than like
- those of older BSD's....)
-
- Most "fcntl()" calls came from System III, originally, so the ones that
- BSD picked up from there should work mostly the same. The ones to turn
- non-blocking I/O are different (Berkeley screwed up when they picked
- those up; they made them work differently - although POSIX 1003.1 says,
- as I remember, "don't do that", so later BSD's will have more
- S3/SV-style versions of those), and the ones to do "asynchronous I/O"
- (i.e., SIGIO) don't exist in SVR4. They may have been added to Solaris
- 2.0, though.
-
- >Does Solaris have BSD Sockets of both the Unix and Internet types?
-
- At least according to my copy of "UNIX(R) System V Release 4
- Programmer's Guide: Networking Interfaces", SVR4 has socket support for
- UNIX-domain and Internet sockets. It also claims to support the
- "ioctl"s mentioned in the SunOS SOCKIO(4) manual page, although it
- doesn't mention all the other socket "ioctl"s.
-
- >I imagine since it's AT&T it will have shared memory.
-
- SVR4 has both traditional SV-style shared memory *and* "mmap()" - but
- then, so does SunOS 4.x.
-
- >Does it have the "dump" utility?
-
- SVR4 has "ufsdump" for the BSD file system; they renamed it from "dump".
-
- >Are the utilities mostly AT&T, or does it preserve the BSD like
- >utilities of SunOS?
-
- Many of the SunOS utilities are actually the result of merging the SV
- and BSD versions. To which particular utilities are you referring?
-
- >(ie. if
- >I want a version of ps that has bsd options instead of at&t options,
- >can I get one that will run on solaris 2.0?)
-
- Yes. Take a look at "/usr/ucb/ps":
-
- Sun Microsystems Inc. SunOS 5.0 fcs June 1992
- sloth% /usr/ucb/ps ax
- PID PPID TT S TIME SIZE RSS COMMAND
- 0 0 ? T 0:08 sched
- 1 0 ? S 7:14 /etc/init -
- 2 0 ? S 0:00 pageout
- 3 0 ? S 312:59 fsflush
- 210 1 ? S 0:43 /usr/lib/saf/sac -t 300
-
- ...
-
- A bit broken (the "SIZE" and "RSS" column headings don't belong there),
- and the "TT" column is wider, but very similar to the BSD one.
-
- >(also, in that last question, can I get a copy of dump that runs on
- >solaris 2.0?)
-
- See above.
-