kill a warning: include <string.h>
ok tedu@

Remove cruft; We don't have the -I, -1 or -2 options anymore so we don't
need the associated scaffolding. tedu@ OK

Fix -r flag that was broken during getopt() conversion--whoops.

Fix temp file handling.
o honor TMPDIR environment variable as per man page
o need 2 temp files if both file1 and file2 are devices
o add error() and errorx() which cleanup temp file and then
call er

Fix temp file handling.
o honor TMPDIR environment variable as per man page
o need 2 temp files if both file1 and file2 are devices
o add error() and errorx() which cleanup temp file and then
call err() and errx() respectively.

OK tedu@

show more ...

pretty code that prints usage

Fix temp file handling and deal with the case where we might need 2 temp files.

put all the flags and globals in diff.c, and declare externs in diff.h
ok millert@

Add a space after flags that take an argumnent in usage() since getopt()
supports that.

De-uglify usage

Add unidiff support and try to pretty up usage() a bit

o use S_ISDIR instead of doing it by hand
o rename talloc -> emalloc and ralloc -> erealloc
o struct direct -> struct dirent (POSIX)
o kill remaining strcpy()
o fix unterminated string in setfile()
d

o use S_ISDIR instead of doing it by hand
o rename talloc -> emalloc and ralloc -> erealloc
o struct direct -> struct dirent (POSIX)
o kill remaining strcpy()
o fix unterminated string in setfile()
deraadt@ OK

show more ...

Fix getopt string for -D

o use getopt()
o use err/warn
o only call done() when needed (after mkstemp)
o add "-C lines" like GNU grep
OK deraadt@

remove silly signal catcher, and just use done. ok deraadt@

exit path signal race safe

cleanup. ansi, headers, correct prototypes, some safer string and
tempfile functions, whitespace, ...
no functional improvements yet

caldera licenses

4.3reno diff. This is free because of the Caldera license. Nasty, but a
place to start.