src/usr.bin/getopt/getopt.c, branch release/5.3.0_cvs

This commit was manufactured by cvs2svn to create tag

2004-11-04T19:12:42+00:00

'RELENG_5_3_0_RELEASE'.

This commit was manufactured to restore the state of the 5.3-RELEASE image.

ANSIify function definitions.

2002-09-04T23:29:10+00:00

Add some constness to avoid some warnings.
Remove use register keyword.
Deal with missing/unneeded extern/prototypes.
Some minor type changes/casts to avoid warnings.

Reviewed by:	md5

Consistently use FBSDID

2002-06-30T05:25:07+00:00

Minor nit; return(foo) from main rather than exit(foo).

2002-04-28T14:04:24+00:00

Warns cleanup (just make main return an int).

2001-12-03T20:57:49+00:00

Include missing header files which define functions for which gcc has

2001-06-24T19:50:42+00:00

builtins (e.g., exit, strcmp).

getopt and friends are declared in

2000-09-04T06:09:54+00:00

getopt returns -1 not EOF.

Back out part of previous commit.

1999-04-04T00:25:39+00:00

Arguments with whitespaces are easy to fix, but in combination with
shell metachars that should not be evaluated it is very hard, probably
impossible to fix without going to a line-oriented solution.

Next time I will believe Henry Spencer when he says "this looks easy
to fix but isn't".

1) Fix the case where a shellscript using getopt is called with a

1999-04-03T22:24:36+00:00

   parameter that has space in it, both in getopt.c and in the manpage
   example.

2) Fix the example in the manpage. The set(1) command is required to
   return 0 (POSIX 1003.2, section 3.14.11), so you can't test for
   getopt's exit status like the example did:

  #! /bin/sh
  set -- `getopt abo: $*`
  if test $? != 0  # wrong, tests for set's exit status, which is
                   # always zero, no for getopt(1)'s.

Fixes PR bin/5845, which thought it was getopt's fault, but in fact
the manpage was wrong.

I also updated the example to be more useful and updated the BUGS
section.

PR:		bin/5845

compare return value from getopt against -1 rather than EOF, per the final

1997-03-29T04:34:07+00:00

posix standard on the topic.