Refinements to the output when the EXTERROR_VERBOSE environment is set

When kernel external errors are available they are included in the
err(3) library function messages. In addition to the extende

Refinements to the output when the EXTERROR_VERBOSE environment is set

When kernel external errors are available they are included in the
err(3) library function messages. In addition to the extended error
itself, the kernel also tracks the kernel file and line number at
which the error was generated. This additional information is not
included in the err(3) messages unless the EXTERROR_VERBOSE environment
variable is present. Currently, when EXTERROR_VERBOSE is present,
all the internal extended error information associated with the
error is printed most of which is redundant with the formatted error
message printed by err(3). This change will add only the kernel
file and line number to the err(3) message when EXTERROR_VERBOSE
is present and set to "brief".

Sample output with bad protection bits to mmap:

guest_16 % ./Example bigfile
Example: mmap bigfile: Invalid argument (unknown PROT bits 0x8)

guest_16 % setenv EXTERROR_VERBOSE
guest_16 % ./Example bigfile
Example: mmap bigfile: Invalid argument (unknown PROT bits 0x8 errno 22 category 1 (src sys/vm/vm_mmap.c:200) p1 0x8 p2 0)

guest_16 % setenv EXTERROR_VERBOSE brief
guest_16 % ./Example bigfile
Example: mmap bigfile: Invalid argument (unknown PROT bits 0x8 (src sys/vm/vm_mmap.c:200))

Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D55494
MFC-after: 1 week
Sponsored-by: Netflix

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man pages: provide some description for extended errors

, related functions, and the EXTERROR_VERBOSE environment variable.

Reviewed by: emaste, mckusick
Sponsored by: The FreeBSD Foundation
MFC af

man pages: provide some description for extended errors

, related functions, and the EXTERROR_VERBOSE environment variable.

Reviewed by: emaste, mckusick
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D54380

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lib: 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

lib: 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 ...

Remove $FreeBSD$: one-line nroff pattern

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

man pages: provide some description for extended errors

, related functions, and the EXTERROR_VERBOSE environment variable.

Reviewed by: emaste, mckusick
Sponsored by: The FreeBSD Foundation
MFC af

man pages: provide some description for extended errors

, related functions, and the EXTERROR_VERBOSE environment variable.

Reviewed by: emaste, mckusick
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D54380

show more ...

lib: 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

lib: 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 ...

Remove $FreeBSD$: one-line nroff pattern

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

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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IFC @ r238370

MFC

Merge head r233826 through r234834.

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

show more ...

IFC @ r238370

MFC

Merge head r233826 through r234834.

Use the .Bx macro instead of BSD

Submitted by: ru
Approved by: ru
MFC after: 3 days
X-MFC-With: r234700

Document the standardization status of err* and warn*

PR: docs/164939
Submitted by: Niclas Zeising <zeising@daemonic.se>
Approved by: bcr
MFC after: 3 days

integrate from head@185615

In example use of err(3) and errx(3), use sysexits(3) constants.

MFC after: 3 days
Submitted by: Bruce Cran <bruce at cran dot org dot uk>

Per Regents of the University of Calfornia letter, remove advertising
clause.

# If I've done so improperly on a file, please let me know.

Minor clarification.

Markup nit.

Mutually cross-reference sysexits(3) and err(3). Add text to err(3)
recommending that the standard exit codes in sysexits(3) be used.

Reviewed by: ru