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rescinded 22 July 1999. Proofed by myself and Theo.
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deraadt@ ok
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hand editing to make comments line up correctly. Another pass is forthcoming that handles the cases that could not be done automatically.
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o Style nits
o Use const to silent stupid -Wall warnings
o strnc{py,at} -> strlc{py,at}
o Use strpbrk() instead of homegrown anyof()
o Use NULL instead of #defines with 0 cast to a pointer
This still could use a proper audit
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Instead, routines responsible to gathering user input (or in some
cases outputting data) catch the signals and set flags as needed.
Because of this some handlers are install without the SA_RESTART
flag so syscalls are not restarted and we can check the flag. All
signal handlers are now safe.
This should make the flow of control a bit more grokable but the
code is still ugly.
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o escape From line with a leading '>' when needed
o only print To: address and Subject lines if actually present
o new variable 'allnet' to treat user@foo and user@bar as the same "user"
o folders command now takes an optional argument like ls.
o new "pipe" (|) command to pipe the message through an arbitrary command
o make header display format the same as SunOS 4.1.3 /usr/ucb/mail
o tilde commands work regardless of interactive mode.
o fix "read: Interrupted system call" error by retrying if EINTR
o expanded help file
Changes by me:
o read the help file via the PAGER as it is now more than 24 lines long
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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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spool, change an occurrence of tempnam() to mkstemp(), change some
longs and shorts to ints. Mail is now usable again.
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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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