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use volatile instead.
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replace panic() with calls to err()/errx()
use S_IS* instead of doing by hand with S_IF*.
Use TIMESPEC_TO_TIMEVAL() and gettimeofday instead of time(2)
Use _POSIX_VDISABLE, not 0
Kill register
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mail(1) is used over a telnet session.
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Much more remains to be done.
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returned 0 and the return val was always ignored).
Add gethfromtty() to get a header (using grabh) from the tty and
quit on two ^C's.
Use gethfromtty() when getting Subject, Cc, and Bcc headers so
we can quit nicely. Closes PR #291.
Don't use longs where it doesn't make sense.
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in collect.c and fix up some signal botches elsewhere.
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Use sigsetjmp/siglongjmp instead of sigjmp/longjmp for portability.
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- handle long lines safely (from NetBSD)
- use puts/fputs and putchar/putc when it makes sense
- use err/errx and warn/warnx when it makes sense
- make return() and sizeof() style consisten
- some more buffer safety
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- Fix PR/105: Implement dot locking protocol and check return value of flock.
- Fix PR/2247: Don't call unknown users "ubluit". Issue an error message.
- Fix/add prototypes.
- Fix warnings.
- Use POSIX signal mask calls.
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