lpd: Add timeout option
Set a 120-second receive timeout on all client connections, and add a
command-line option to change that value.
MFC after: 1 week
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D55400
lpd: Improve robustness
* Check for integer overflow when receiving file sizes.
* Check for buffer overflow when receiving file names, and fully
validate the names.
* Check for integer overflow when checking for available disk space.
* Check for I/O errors when sending status codes.
* Enforce one job per connection and one control file per job (see
code comments for additional details).
* Simplify readfile(), avoiding constructs vulnerable to integer
overflow.
* Don't delete files we didn't create.
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[SystemZ] Emit external aliases for indirect function descriptors in the ADA section
This is the last of the three patches aimed to support indirect symbol handling for
the SystemZ backend.
An external alias is emitted for indirect function descriptors within the ADA
section, rather than a temporary alias, while also setting all of the appropriate
symbol attributes that are needed for the HLASM streamer to emit the correct XATTR
and ALIAS instructions for the indirect symbols.
Moreover, this patch updates the `CodeGen/SystemZ/zos-ada-relocations.ll` test
as the ADA section is currently the only user of indirect symbols on z/OS.
[SystemZ] Emit external aliases required for indirect symbol handling support
This is the second of three patches aimed to support indirect symbol handling for
the SystemZ backend. An external name is added for both MC sections and symbols
and makes the relevant printers and writers utilize the external name when present.
Furthermore, the ALIAS HLASM instruction is emitted after every XATTR instruction.
[SystemZ] Add indirect reference bit XATTR REFERENCE(INDIRECT) for indirect symbol handling support
This is the first of three patches aimed to support indirect symbol handling for
the SystemZ backend. This PR introduces a `GOFF:ERAttr` to represent indirect
references, handles indirect symbols within `setSymbolAttribute()` by setting
the indirect reference bit, and also updates the HLASM streamer to emit
`XATTR REFERENCE(INDIRECT)` and various other combinations.
[BOLT][merge-fdata] Skip truncated lines in raw profile data (#183187)
Raw profile data file may contain lines truncated due to unexpected
app exit. This change is to have merge_fdata check number of fields
in each line of raw profile data file and ignore a line if the number
is not expected.
[RISCV] Add MERGE, MVM, and MVMN to isSignExtendedW in RISCVOptWInstrs. (#183433)
These instructions are a combination of AND/OR/XOR which return sign
extended values if all inputs are sign extended.
[RISCV] Partial support for using PPAIRE.B/H to optimize unaligned load sequences. (#183423)
Patterns are based on patterns we use for Zbkb. We can't copy all
patterns because PPAIRE.B/H are a little different than PACKW/PACKH.
PACKW packs the first 16 bits of rs1 and rs2 and sign extends the upper
32 bits of rd. PACKH packs the first 8 bits of rs1 and rs2 and puts
zeros in bits 16 of rd.
PPAIRE.B copies the even bytes of rs1 to the even bytes of rd and copies
the even bytes of rs2 to the odd bytes of rd. PPAIRE.H is similar, but
copys halfwords instead of bytes. We can treat them equivalently to
PACKH/PACKW when we know that we only care about the lower halfword or
word, respectively of the result.
[SystemZ] Emit external aliases for indirect function descriptors in the ADA section
This is the last of the three patches aimed to support indirect symbol handling for
the SystemZ backend.
An external alias is emitted for indirect function descriptors within the ADA
section, rather than a temporary alias, while also setting all of the appropriate
symbol attributes that are needed for the HLASM streamer to emit the correct XATTR
and ALIAS instructions for the indirect symbols.
Moreover, this patch updates the `CodeGen/SystemZ/zos-ada-relocations.ll` test
as the ADA section is currently the only user of indirect symbols on z/OS.
security/py-unicode-show: New port: Detect and annotate suspicious Unicode characters in text or files
unicode-show is a utility that reads text input (from standard input
or files) and highlights suspicious Unicode characters, such as
those outside the safe ASCII range. This tool is useful for identifying
potentially malicious or misleading Unicode characters in source
code, logs, or user input.
WWW: https://www.kicksecure.com/wiki/Unicode-show
[RISCV] Treat zext.h as a separate instruction from pack(w) with Zbkb. (#183364)
The Zbb encoding for zext.h is a subset of the encoding for pack(w).
There is a statement in the ISA manual that says "For RV32, the pack
instruction with rs2=x0 is the zext.h instruction. Hence, for RV32, any
extension that contains the pack instruction also contains the zext.h
instruction"
This patch makes the zext.h instruction mnemonic canonical when only
Zbkb is enabled. -Mno-aliases will not disable the printing of zext.h. I
believe this matches binutils.
I've taught the assembler to remap PACK/PACKW to ZEXT_H to make printing
parsed assembly match the disassembler output.
[SystemZ] Emit external aliases required for indirect symbol handling support
This is the second of three patches aimed to support indirect symbol handling for
the SystemZ backend. An external name is added for both MC sections and symbols
and makes the relevant printers and writers utilize the external name when present.
Furthermore, the ALIAS HLASM instruction is emitted after every XATTR instruction.
build: Move all of lp under LPR option
* Tag related directories with package=lp
* Make the examples/printing directory conditional on MK_LPR
* Make the hosts.lpd(5) manual page conditional on MK_LPR
MFC after: 3 days
(cherry picked from commit d4f6cb75424950ee776833ebc6b57855c094a610)
lpr: Add deprecation notice
These programs require elevated privileges to work and have not seen
regular maintenance in decades. Unless someone steps up and overhauls
them, we will have to remove them before 16.0. Better-maintained
alternatives are available in ports (print/cups, sysutils/LPRng).
MFC after: 3 days
(cherry picked from commit d57dee7ab66f60537b557cb602be194e3eed253d)
libfetch: Gracefully skip unsupported protocols
If socket() fails because the address family or protocol is unsupported,
just continue with the next address.
MFC after: 1 week
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D55407
(cherry picked from commit b5d570e711da1dad303312bebaf1bd2fb720f0dc)
libfetch: Fail hard if interrupted while connecting
This fixes an issue where the first address that DNS returns is blocked
by a packet filter, so we hang for a while, then the user hits Ctrl-C,
interrupting connect(2), whereupon we move on to the next address, get
a connection, request the file, and return to fetch(1), which sees that
SIGINT was caught and bails.
Note that we make no attempt to enforce fetchTimeout in the connection
phase, and never have. It's feasible, but non-trivial, so we'll leave
it as an exercise for future us.
PR: 293312
MFC after: 1 week
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D55406
(cherry picked from commit afbdcd402bb439bd3d487baaad63b68e95929265)
libfetch: Clean up fetch_info usage
* Provide a wrapper for the common if (verbose) fetch_info(...) idiom.
* Replace remaining instances of fprintf(stderr, ...) with fetch_info().
* Fix a few style nits.
MFC after: 1 week
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D55405
(cherry picked from commit 1b7c4d29fdfc975facdc43f6da50947cf3bb8e4a)
m4: Fix eval output width
According to POSIX, the optional third argument is the minimum number
of digits to print regardless of sign. We interpreted it as the minimum
width of the output including the sign. Additionally, the variable used
to hold this value was confusingly named “maxdigits”.
PR: 293214
MFC after: 1 week
Sponsored by: Klara, Inc.
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D55311
(cherry picked from commit 507c611aeac7ca9aed12353b1044bb21ab00afae)
libfetch: Gracefully skip unsupported protocols
If socket() fails because the address family or protocol is unsupported,
just continue with the next address.
MFC after: 1 week
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D55407
(cherry picked from commit b5d570e711da1dad303312bebaf1bd2fb720f0dc)
libfetch: Fail hard if interrupted while connecting
This fixes an issue where the first address that DNS returns is blocked
by a packet filter, so we hang for a while, then the user hits Ctrl-C,
interrupting connect(2), whereupon we move on to the next address, get
a connection, request the file, and return to fetch(1), which sees that
SIGINT was caught and bails.
Note that we make no attempt to enforce fetchTimeout in the connection
phase, and never have. It's feasible, but non-trivial, so we'll leave
it as an exercise for future us.
PR: 293312
MFC after: 1 week
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D55406
(cherry picked from commit afbdcd402bb439bd3d487baaad63b68e95929265)
libfetch: Clean up fetch_info usage
* Provide a wrapper for the common if (verbose) fetch_info(...) idiom.
* Replace remaining instances of fprintf(stderr, ...) with fetch_info().
* Fix a few style nits.
MFC after: 1 week
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D55405
(cherry picked from commit 1b7c4d29fdfc975facdc43f6da50947cf3bb8e4a)
m4: Fix eval output width
According to POSIX, the optional third argument is the minimum number
of digits to print regardless of sign. We interpreted it as the minimum
width of the output including the sign. Additionally, the variable used
to hold this value was confusingly named “maxdigits”.
PR: 293214
MFC after: 1 week
Sponsored by: Klara, Inc.
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D55311
(cherry picked from commit 507c611aeac7ca9aed12353b1044bb21ab00afae)
libfetch: Clean up fetch_info usage
* Provide a wrapper for the common if (verbose) fetch_info(...) idiom.
* Replace remaining instances of fprintf(stderr, ...) with fetch_info().
* Fix a few style nits.
MFC after: 1 week
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D55405
(cherry picked from commit 1b7c4d29fdfc975facdc43f6da50947cf3bb8e4a)
libfetch: Fail hard if interrupted while connecting
This fixes an issue where the first address that DNS returns is blocked
by a packet filter, so we hang for a while, then the user hits Ctrl-C,
interrupting connect(2), whereupon we move on to the next address, get
a connection, request the file, and return to fetch(1), which sees that
SIGINT was caught and bails.
Note that we make no attempt to enforce fetchTimeout in the connection
phase, and never have. It's feasible, but non-trivial, so we'll leave
it as an exercise for future us.
PR: 293312
MFC after: 1 week
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D55406
(cherry picked from commit afbdcd402bb439bd3d487baaad63b68e95929265)
