sh: Add SPDX-License-Identifier tags

Reviewed by: imp
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D55213

bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl s

bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

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sh: introduce a function to iterate over all hashed commands

While aliases and built-ins are opportunistically stored in cmdtable, each
function will be added to it immediately on definition.

Facto

sh: introduce a function to iterate over all hashed commands

While aliases and built-ins are opportunistically stored in cmdtable, each
function will be added to it immediately on definition.

Factor out the hashing function, write the iterator function and make it use
the hashing function.

Add the cmdname pointer to struct cmdentry so that the command name can be
exposed that way.

Differential Revision: https://reviews.freebsd.org/D40619

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Remove $FreeBSD$: one-line .h pattern

Remove /^\s*\*+\s*\$FreeBSD\$.*$\n/

Merge ^/head r339813 through r340125.

sh: Use exitstatus instead of exerrno to pass EXEXEC status

No functional change is intended.

bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl s

bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

show more ...

sh: introduce a function to iterate over all hashed commands

While aliases and built-ins are opportunistically stored in cmdtable, each
function will be added to it immediately on definition.

Facto

sh: introduce a function to iterate over all hashed commands

While aliases and built-ins are opportunistically stored in cmdtable, each
function will be added to it immediately on definition.

Factor out the hashing function, write the iterator function and make it use
the hashing function.

Add the cmdname pointer to struct cmdentry so that the command name can be
exposed that way.

Differential Revision: https://reviews.freebsd.org/D40619

show more ...

Remove $FreeBSD$: one-line .h pattern

Remove /^\s*\*+\s*\$FreeBSD\$.*$\n/

Merge ^/head r339813 through r340125.

sh: Use exitstatus instead of exerrno to pass EXEXEC status

No functional change is intended.

sh: Don't treat % specially in CDPATH

Merge ^/head r314420 through r314481.

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by: Jan Schaumann <jschauma@stevens.edu>
Pull Request: https://github.com/freebsd/freebsd/pull/96

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MFC @ r241285

IFC @ r242684

Sync from head

Merge head r233826 through r239010.

sh: Expand assignment-like words specially for export/readonly/local.

Examples:
export x=~
now expands the tilde
local y=$1
is now safe, even if $1 contains IFS characters or metacharacters.

Fo

sh: Expand assignment-like words specially for export/readonly/local.

Examples:
export x=~
now expands the tilde
local y=$1
is now safe, even if $1 contains IFS characters or metacharacters.

For a word to "look like an assignment", it must start with a name followed
by an equals sign, none of which may be quoted.

The special treatment applies when the first word (potentially after
"command") is "export", "readonly" or "local". There may be quoting
characters but no expansions. If "local" is overridden with a function there
is no special treatment ("export" and "readonly" cannot be overridden with a
function).

If things like
local arr=(1 2 3)
are ever allowed in the future, they cannot call a "local" function. This
would either be a run-time error or it would call the builtin.

This matches Austin Group bug #351, planned for the next issue of POSIX.1.

PR: bin/166771

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IFC @230489 (pending review).

IFC to head to catch up the bhyve branch

Approved by: grehan@

Integrate from Head into ZFSD feature branch as of revision r224141.

IFC @ r222830

MFC r196483,r196634:
sh: Fix crash when undefining or redefining a currently executing function

Add a reference count to function definitions.
Memory may leak if a SIGINT arrives in interactive mode

MFC r196483,r196634:
sh: Fix crash when undefining or redefining a currently executing function

Add a reference count to function definitions.
Memory may leak if a SIGINT arrives in interactive mode at exactly the wrong
time, this will be fixed later by changing SIGINT handling.

PR: bin/137640
Approved by: re (kib)

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sh: Don't treat % specially in CDPATH