December 2002
Intermediate to advanced
1232 pages
56h 38m
English
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Name
BSD4_3
Synopsis
Old BSD-based versions of Unix, such as SunOS 4.0.x and BSD 4.3, used the signal(2) and sigsetmask(2) calls to set and release signals. Modern versions of Unix use the sigaction(2) and sigprocmask(2) pair of routines. For all currently supported systems, BSD_3 is already correctly defined in the devtools/OS files or in sendmail/conf.h. You should need to define BSD_3 if you are porting to a previously unsupported, old BSD-based system:
APPENDDEF(`confENVDEF', `-DBSD4_3')
When porting to a new system, you can test with the preceding
confENVDEF statement and, if successful, put a
permanent porting entry into sendmail/conf.h.
New ports should be reported to
sendmail@sendmail.org so that they can be folded
into future releases.
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.