src/lib/libc/stdlib/getopt_long.c, branch releng/14.4

libc: Purge unneeded cdefs.h

2023-11-27T04:20:09Z

These sys/cdefs.h are not needed. Purge them. They are mostly left-over from the $FreeBSD$ removal. A few in libc are still required for macros that cdefs.h defines. Keep those. Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D42385 (cherry picked from commit 559a218c9b257775fb249b67945fe4a05b7a6b9f)

Remove $FreeBSD$: one-line .c pattern

2023-08-16T17:54:42Z

Remove /^[\s*]*__FBSDID$"\$FreeBSD\$"$;?\s*\n/

getopt: Fix conversion from string-literal to non-const char *

2021-01-19T21:23:25Z

Define a non-const static char EMSG[] = "" to avoid having to add __DECONST() to all uses of EMSG. Also make current_dash a const char * to fix this warning.

getopt_long(3): fix case of malformed long opt

2019-01-04T03:13:24Z

When presented with an arg string like '-l-', getopt_long will successfully parse out the 'l' short option, then proceed to match '--' against the first longopts entry as it later does a strncmp with len=0. This latter bit is arguably another bug in itself, but presumably not a practical issue as all callers of parse_long_options are already doing the right thing (except this one pointed out). An opt string like '-l-' should be considered malformed and throw a bad argument rather than behaving as if '--' were passed. It cannot possibly do what the invoker expects, and it's probably the result of a typo (ls -l- a) rather than any intent. Reported by: Tony Overfield Reviewed by: imp MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D18616

Merge intermediate OpenBSD v1.25 changes (almost identical to ours)

2014-06-22T21:54:57Z

to reduce diff and bump OpenBSD patch level to v1.26. MFC after: 2 weeks

getopt(3): recognize option:: as GNU extension for "optional options".

2014-06-22T20:13:57Z

Also ANSIfy a function declaration. While here update the OpenBSD patch level in getopt_long.c as we already have the corresponding change. Obtained from: NetBSD MFC after: 2 weeks

Switch from 4-clause to 2-clause BSD license. (OpenBSD r1.22)

2012-06-11T22:25:20Z

No functional change. Obtained from: NetBSD via OpenBSD

Keep compatible parts in sync with OpenBSD v1.21, add some comments.

2006-09-23T14:48:31Z

No functional changes.

Remove code #ifndef'ed in prev. commit to stay in sync with OpenBSD

2006-09-22T18:59:03Z

v1.21 which just do that.

Be more GNU compatible:

2006-09-22T17:01:38Z

don't be greedy on the GNU "::" extension when arg separated by whitespace and POSIX_CORRECTLY is set. From POSIX point of view this is unclear situation, so minimal assumption looks right.