Commit Graph

274 Commits

Author SHA1 Message Date
Dmitry Goncharov
8e805c7ba6 [SV 63537] Pass enabled-by-default switches to submake
Certain switches, such as -S or --no-silent, turn on behavior that is
enabled by default.  When a switch is specified via the command line,
makefile, or env, ensure the switch is added to MAKEFLAGS.

* src/main.c (struct command_switch): Add bit "specified".
(switches): Initialize command_switch->specified.
(decode_switches): Set command_switch->specified.
(define_makeflags): Check command_switch->specified.
2022-12-18 20:06:38 -05:00
Dmitry Goncharov
132528b266 [SV 63537] Remember the origin of command line options
Certain options can be flipped on and off: -k/-S, -s/--no-silent, and
-w/--no-print-directory.  Ensure they behave as follows:
 1. A switch can be enabled or disabled on the command line.
 2. A switch can be enabled or disabled in env.
 3. A switch can be enabled or disabled in makefile.
 4. Command line beats env and makefile.
 5. Env beats makefile.

* src/main.c: Add variables to hold the origin of relevant options.
(struct command_switch): Add origin field.
(switches): Set a pointer to hold the origin of relevant options.
(decode_switches): For any switch that can be specified in makefile or
env, honor the switch only if cs->origin is not set or the specified
origin beats cs->origin.  Set cs->origin when relevant.
2022-12-18 20:06:38 -05:00
Dmitry Goncharov
8f9e7722ff [SV 63537] Fix setting -w in makefiles
* src/makeint.h: Replace print_directory flag with should_print_dir().
* src/main.c (main): Remove print_directory flag and related code.
(should_print_dir): Create.
* src/output.c (output_dump): Use should_print_dir().
(output_start): Ditto.
2022-12-18 20:06:38 -05:00
Dmitry Goncharov
95c2db7b8d [SV 63484] Force included makefiles to be explicit
Ensure included makefiles are not treated as intermediate, even if
they are created by an implicit rule.
Reported by Patrick Oppenlander <patrick.oppenlander@gmail.com>.

* src/read.c (eval_makefile): Mark makefiles as explicit.
* tests/scripts/features/include: Add a test.
2022-12-18 20:06:38 -05:00
Paul Smith
5d1b757517 [SV 63516] [DOS] Support include files with drivespecs
* src/makeint.h (HAVE_DRIVESPEC): Create a macro to check.
* src/main.c (.FEATURES): Add "dospaths" as a feature.
* src/read.c (eval_makefile) [DOS]: If the included makefile name
starts with a drivespec, don't search the include directories.
* doc/make.texi (Include): Document this behavior.
* tests/scripts/features/include: Add a test.
2022-12-18 20:06:38 -05:00
Paul Smith
c0023150f1 * src/job.c (new_job): [SV 63510] Trace phony prerequisite rebuilds 2022-12-18 14:44:17 -05:00
Dmitry Goncharov
6164608900 [SV 63417] Ensure global .NOTINTERMEDIATE disables all intermediates
Fix .NOTINTERMEDIATE without prerequisites to disable intermediate
status for all targets.

* src/makeint.h: Declare extern no_intermediates.
* src/main.c: Add global definition of no_intermediates.
* src/file.c: Remove static no_intermediates to use global variable.
(remove_intermediates): Check no_intermediates.
* src/implicit.c (pattern_search): For a file found by implicit search
set file->notintermediate if no_intermediates is set.
* src/remake.c (update_file_1): Don't set file->secondary for a
pre-existing file if no_intermediates is set.  The check for
no_intermediates here is redundant, but won't hurt: keep it in case
things change so that it matters.
* tests/scripts/targets/NOTINTERMEDIATE: Fix a test.
2022-11-28 10:50:55 -05:00
Dmitry Goncharov
dc2d963989 [SV 63347] Always add command line variable assignments to MAKEFLAGS
This commit introduces two visible changes:
1. Keep command line variable assignments in MAKEFLAGS at all times,
   even while parsing makefiles.
2. Define makeflags immediately when a makefile modifies MAKEFLAGS.

The new MAKEFLAGS and MAKEOVERRIDES initialization procedure:
1. decode_switches (argc, argv, o_command) is called to parse command
   line variable assignments.
2. Command line variable assignments go through quote_for_env.
   Initialize -*-command-variables-*- to the quoted values.
3. MAKEOVERRIDES is initialized to refer to -*-command-variables-*-
   with origin o_env to keep the definitions in the database intact.
4. define_makeflags() is called which adds MAKEOVERRIDES to MAKEFLAGS.
5. Makefiles are parsed.  If a makefile modifies MAKEFLAGS, the new
   value of MAKEFLAGS is defined right away.
6. Env switches are decoded again as o_env.  The definitions set by
   decode_switches at step 1 stay intact, as o_command beats o_env.

We must preserve the original intact definitions in order to detect
failure cases; for example:
  $ cat makefile
  all:; $(hello)
  $ make hello='$(world'
  makefile:1: *** unterminated variable reference.  Stop.

* src/makeint.h: Declare enum variable_origin, struct variable and
define_makeflags().  Add parameter origin to decode_env_switches().
* src/main.c (define_makeflags): Remove "all". If a variable is
assigned on the command line then append MAKEOVERRIDES to MAKEFLAGS.
(decode_env_switches): Replace parameter env with origin.
(decode_switches): Replace parameter env with origin.
Treat origin == o_command as env == 0.
(handle_non_switch_argument): Replace parameter env with origin.
Treat origin == o_command as env == 0.
(main): Call decode_switches() with origin==o_command before parsing
makefiles.  Call decode_switches() with origin==o_env after parsing
makefiles.
* src/variable.c (set_special_var): Define makeflags at parse time,
each time a makefile modifies MAKEFLAGS.
(do_variable_definition): Strip command line variable assignments from
MAKEFLAGS before appending extra flags.  set_special_var() adds them
back.
* tests/scripts/variables/MAKEFLAGS: Add tests.
2022-11-28 10:50:55 -05:00
Paul Smith
53b8f6a5da * src/main.c (main): [SV 63373] Don't use macros with memcmp()
Reported by djm <mccannd@uk.ibm.com>
2022-11-16 10:00:34 -05:00
Paul Smith
6c1a6dd77c Add specific hints for errors due to invalid conditionals
* src/read.c (eval): If "missing separator" appears to be due to
missing space after ifeq/ifneq, give a hint about the error.
* tests/scripts/misc/failure: Check for these types of failures.
* tests/scripts/variables/special: Move error checking unrelated
to special variables, to misc/failure.
2022-11-15 10:50:34 -05:00
Dmitry Goncharov
1b51ba1f5d [SV 63333] Be more lenient when failing to create temporary files
If make cannot create a temporary lock file for output sync, continue
without output sync enabled rather than dying.

However, if make cannot store a makefile from stdin to a temporary
file that is still a fatal error.

* misc.c (get_tmppath): Keep running on failure to generate a
temporary file name.
(get_tmpfd): Keep running on failure to get a temporary file.
(get_tmpfile): Keep running on failure to open a temporary file.
Ensure memory is freed if we return an error.
* posixos.c (os_anontmp): Keep running on failure to open an
anonymous temporary file.
* output.c (setup_tmpfile): Print an error on failure to create an
output sync lock file.
* main.c (main): Die on failure to store makefile from stdin to a
temporary file.
* tests/scripts/features/output-sync: Add tests.
* tests/scripts/features/temp_stdin: Ditto.
2022-11-13 16:34:01 -05:00
Paul Smith
4c9d87f4ae Keep going if we can't connect to the jobserver
* src/posixos.c (jobserver_parse_auth): Don't invoke fatal() if we
can't connect to an existing jobserver: just keep going without it.
* src/w32/w32os.c (jobserver_parse_auth): Ditto.
* tests/scripts/features/jobserver: Add a test for invalid FIFO
auth files.
2022-11-13 10:39:48 -05:00
Paul Smith
bb5df35133 * src/dir.c (dir_contents_file_exists_p): Show dir name in error.
If we fail to read a directory show the directory name in the error
message.  Pass struct directory instead of directory_contents to
allow that.
(dir_file_exists_p): Change dir_contents_file_exists_p caller.
(open_dirstrem): Ditto.
2022-11-13 10:39:48 -05:00
Paul Smith
92ab2e642d * src/main.c (main): [SV 63307] Handle SIGPIPE as a fatal signal
Always ignoring SIGPIPE is visible to child processes.
2022-11-13 10:39:48 -05:00
Paul Smith
e80ce6fc90 [SV 63315] Allocate function names when defining functions
* src/function.c (define_new_function): Don't keep a pointer to the
user-provided name of a user-defined function: if the .so is unloaded
it will point to garbage.  Add the name to the strcache instead.
2022-11-13 10:39:48 -05:00
Justine Tunney
090d99dd2d * src/hash.c (jhash_string): Help the compiler optimize the hash
Invoke memcpy() with a constant length, where possible.

Copyright-paperwork-exempt: yes
2022-11-13 10:38:50 -05:00
Paul Smith
6b45f89adb * src/config.h.W32 [TCC]: Only redefine strtoll if not defined 2022-11-12 10:34:35 -05:00
Eli Zaretskii
11f7198f64 * src/config.h.W32: Fix last change. 2022-11-09 15:15:20 +02:00
Eli Zaretskii
4321c5e562 Fix build with Tiny C
* src/config.h.W32 (strtoll, strtoull) [__TINYC__]: Redirect to
_strtoi64 and _strtoui64, respectively.  Reported by Christian
Jullien <eligis@orange.fr>.
2022-11-05 16:46:58 +02:00
Paul Smith
38b19976f5 Fix issues found by ASAN and Coverity
* tests/test_driver.pl: Preserve the LSAN_OPTIONS variable.
* tests/scripts/targets/ONESHELL: Don't set a local variable.
* tests/scripts/functions/let: Test empty let variable.
* src/posixos.c (osync_parse_mutex): Free existing osync_tmpfile.
* src/misc.c (get_tmpfd): Set umask() before invoking mkstemp().
* src/ar.c (ar_parse_name): Check invalid name (shouldn't happen).
* src/function.c (define_new_function): Free previous function entry
when replacing it with a new one.
* src/job.c (child_execute_job): Initialize pid for safety.
(construct_command_argv_internal): In oneshell mode ensure that the
returned argv has the right format (0th element is a pointer to the
entire buffer).
2022-10-31 02:23:04 -04:00
Paul Smith
1dd52ab472 Avoid C99 constructs
Although gnulib requires C99, most of the code does compile with a
C90 compiler (perhaps with a lot of warnings).  Reinstate our C90
configuration test, and clean up a few C99 things that crept in.

* src/job.c (construct_command_argv_internal): Don't use loop-local
variables or C++ comments.
* src/read.c (eval_makefile): Don't use loop-local variables.
2022-10-29 13:36:21 -04:00
Paul Smith
11f9da227e * src/posixos.c (os_anontmp): [SV 63287] Only fail O_TMPFILE once
Reported by Dmitry Goncharov <dgoncharov@users.sf.net>.
2022-10-29 13:36:21 -04:00
Paul Smith
8064aee4f9 * src/job.c: [SV 63185] Don't use ifdef with HAVE_DECL_* macros 2022-10-27 15:20:40 -04:00
Paul Smith
d18a87d0a4 [SV 63260] Don't recurse forever if setup_tmpfile() fails
If we fail during setup_tmpfile() we'll try to write an error, which
will invoke setup_tmpfile() again, etc.  Avoid infinite recursion.
Original patch by Dmitry Goncharov <dgoncharov@users.sf.net>

* src/output.c (setup_tmpfile): Remember we're in this function and
return immediately if we enter it during recursion.
(message): Remember the starting location and use that instead of
fmtbuf.buffer.
(error): Ditto.
(fatal): Ditto.
2022-10-24 01:50:12 -04:00
Paul Smith
41c35f2ffe * src/output.c (_outputs): Don't use invalid output sync FDs
Just write to stdout/stderr in this situation.
2022-10-24 01:50:12 -04:00
Paul Smith
deb4a42c3e * src/misc.c (get_tmpdir): Report errors if tmpdirs are invalid
* src/main.c (main): Set up initial temporary directories.
2022-10-24 01:50:12 -04:00
Dmitry Goncharov
252c26bd20 * src/posixos.c (os_anontmp): If O_TMPFILE fails try dup() method. 2022-10-23 18:41:50 -04:00
Paul Smith
6f8da5f4b8 * src/rule.c (get_rule_defn): Don't use STRING_SIZE_TUPLE in mempcpy
If mempcpy() is a macro then STRING_SIZE_TUPLE won't compile.
2022-10-23 18:41:50 -04:00
Paul Smith
c46b5a9e0e Provide a maintainer-only debug method
Generating debug logs to stdout or stderr makes it impossible to
run tests etc. so create a dumb DBG facility to log to a temp file.
This exists only in maintainer mode and the DBG macro gives a
compile error if it's used in non-maintainer mode.

* src/makeint.h (DBG): Call dbg() in maintainer mode, else error.
(dbg): Define it in maintainer mode.
* src/misc.c (dbg): Open a log file for append, write, then close.
2022-10-23 18:41:50 -04:00
Paul Smith
f364e0d8d6 Set PATH_MAX on systems without a default value
Some systems (HURD) use fully-dynamic pathnames, with no limit.
We can't support this without significant effort so for now set
PATH_MAX to a large value.

* src/makeint.h: Set PATH_MAX to 4096 if not set and MAXPATHLEN
is also not set.  Remove MAXPATHLEN setting: we won't use it.
* src/misc.c (get_path_max): If we can't get the path max via
pathconf() use the default PATH_MAX.
* src/dir.c (find_directory) [W32]: Use MAX_PATH not MAXPATHLEN.
(local_stat) [W32]: Ditto.
* src/job.c (create_batch_file) [W32]: Ditto.
* src/remake.c (name_mtime) [W32]: Ditto.
* src/w32/w32os.c (os_anontmp) [W32]: Ditto.
2022-10-22 22:40:26 -04:00
Paul Smith
bb0c05a7f0 [SV 63098] Enhance detection of missing peer also-make targets
The previous attempt to detect missing peer targets for implicit
rules had some holes.  Move the detection to notice_finished_file().

* src/remake.c (check_also_make): If we don't have the current mtime
for the file, obtain it.
(update_goal_chain): Don't call check_also_make() here.
(check_dep): Ditto.
(notice_finished_file): If we finished running an implicit rule that
has also_make targets, invoke check_also_make().
2022-10-22 22:40:26 -04:00
Dmitry Goncharov
c2f92c980f [SV 63236] Fix getloadavg related error message on AIX
On AIX getloadavg keeps errno intact when it fails, resulting in a
bogus error message from make.

* src/job.c (load_too_high): Reset errno before calling getloadavg.
2022-10-22 09:45:40 -04:00
Dmitry Goncharov
5b1ca277ca [SV 63248] Ignore SIGPIPE
Don't terminate when make's output is redirected to a pipe and the
reader exits early; e.g.:
  $ echo 'all:; sleep 2' | make -f- -j2 -O |:

This lets us unlink temporary files, and tell the user that make was
not able to write its output.
Reported by Frank Heckenbach <f.heckenbach@fh-soft.de>.

* src/main.c (main): Ignore SIGPIPE.
* src/posixos.c (osync_clear): Fix a memory leak.
2022-10-22 09:45:40 -04:00
Paul Smith
d9fc1ac5d2 Update URLs to use https rather than http
* (all): Change http:// to https://
* README.W32: Remove invalid link to mingw.org.
2022-10-18 14:37:47 -04:00
Paul Smith
9f55e9fd13 Rework temp file handling to avoid GNU libc warnings
Original patch provided by Paul Eggert <eggert@cs.ucla.edu>.
GNU libc will generate a link-time warning if we use mktemp() even
though we are using it safely (we only use it with mkfifo()).
Avoid this and clean up some handling.

First, check all calls related to temporary files and exit with a
fatal error and a useful message if we can't obtain them.  In some
situations it might be possible to continue with reduced capability
but it's not worth the effort.

On POSIX systems we can create anonymous temp files using O_TMPFILE
if it's supported, else if we're using the default location and we
have dup(2), we can use standard tmpfile() and get an FD from it.

If we need a named temp file and FILE* and we have mkstemp() we can
use that, else if we have fdopen() we can get a temp FD and open it.
If none of those are available all we can do is generate a temp name
then open it with fopen() which is not secure.

* src/makeint.h (get_tmpdir): Declare it for use elsewhere.
* src/misc.c (get_tmpdir): Make it public not static.
(get_tmptemplate): Simplify the implementation.
(get_tmppath): Only define this if we have to have it to avoid
warnings from GNU libc.
(get_tmpfd): Generate fatal errors on error.
(get_tmpfile): Ditto.  Open files in "wb+" mode to match tmpfile().
Require a filename pointer (all callers want it).
* src/os.h (os_anontmp): Implement for posixos.c as well.
* src/posix.c (jobserver_setup): Don't use mktemp to avoid GNU libc
errors.  Instead construct the FIFO name based on the PID.
(osync_setup): get_tmpfd() can't fail so don't check it.
(os_anontmp): If the system supports O_TMPFILE use it.  If not, and
we want to create the temporary file in the default directory, we
can use tmpfile() then use dup() to copy the file descriptor.
* src/main.c (main): get_tmpfile() can't fail.
* src/vmsjobs.c (child_execute_job): get_tmpfile() can't fail.
2022-10-18 14:20:44 -04:00
Paul Smith
7bb7bb4ba4 Add ISDIRSEP() helper macro and use it
Create a ISDIRSEP() macro to check for directory separator chars
using the stopchar_map, and replace inline checks and explicit
STOP_SET calls with this macro.

* src/makeint.h (ISDIRSEP): Create the macro using MAP_DIRSEP.
* src/dir.c (find_directory): Replace inline checks with ISDIRSEP.
(file_exists_p): Ditto.
(file_impossible): Ditto.
(file_impossible_p): Ditto.
(local_stat): Ditto.
* src/file.c (lookup_file): Ditto.
* src/function.c (abspath): Ditto.
* src/job.c (_is_unixy_shell): Ditto.
(is_bourne_compatible_shell): Ditto.
(construct_command_argv): Ditto.
* src/main.c (find_and_set_default_shell): Ditto.
(main): Ditto.
* src/read.c (eval): Ditto.
(parse_file_seq): Ditto.
* src/remake.c (name_mtime): Ditto.
* src/vpath.c (construct_vpath_list): Ditto.
2022-10-18 14:20:44 -04:00
Paul Smith
b79791533b Add preprocessor macros for different platforms
* configure.ac: MK_CONFIGURE shows config.h was generated by configure.
* src/config.ami: Define MK_AMIGAOS.
* src/config.h-vms: Define MK_VMS.
* src/configh.dos: Define MK_DJGPP.
* src/config.h.W32: Define MK_W32 and WINDOWS32.
* src/build_w32.bat: Let WINDOWS32 be defined by config.h.  Remove
unused setting of WIN32.
* src/job.c: Clean up use of WIN32.
* src/main.c: Ditto.
* tests/scripts/features/default_names: Ditto.
2022-10-18 14:20:44 -04:00
Paul Smith
9d24d41801 Check for recipe line count overflow before it overflows
awk 'BEGIN {
       print "x:"
       for (i = 0; i < 65536; i++)
         printf "\techo %d\n", i}
    ' | make -f -

Outputs only "make: 'x' is up to date."  Larger values run only the
lines above 65536.  Reported by Paul Eggert <eggert@cs.ucla.edu>.

* src/commands.c (chop_commands): Check the line count before it has
a chance to overflow.  Use size_t for max count so it can't overflow.
Remove stray 'd' in diagnostic.
2022-10-18 14:20:44 -04:00
Paul Smith
2d943d3d2e Remove template files to simplify distribution creation
The README templates were not useful since the replacement step
didn't have anything to replace: rename them.

Rather than creating template files for the config variants, create
mkconfig.h.in containg PACKAGE_* variables to be replaced, and have
config variant header files include it.  Note on POSIX we don't use
this, and continue to generate a single config.h.in file.

Use config.status to convert the README.in and mkconfig.h.in files
during distribution creation.

Modify all users of VERSION to use PACKAGE_VERSION instead.

* configure.ac: Use GNU Make not GNU make as the package name.
* README.in: Use GNU Make not GNU make.
* README.git: Remove references to README.W32.template.
* .gitignore: Update for new behavior.
* Basic.mk.template: Remove unused posix_SOURCES and VERSION, and
references to unshipped mk/Posix.mk
* Makefile.am: Add src/mkconfig.h as an extra dist file.
* bootstrap.bat: Rewrite mkconfig.h.in to mkconfig.h
* maintMakefile: Remove obsolete template files; add mkconfig.h.in.
* prepare_vms.com: Rewrite mkconfig.h.in to mkconfig.h
* mk/VMS.mk: Fix incorrect header file prerequisite.
* src/mkconfig.h.in: New file containing PACKAGE variables.
* src/config.ami: Include mkconfig.h.
* src/config.h.W32: Ditto.
* src/configh.dos: Ditto.
* src/config.h-vms: Ditto.
* src/version.c: Use PACKAGE_VERSION not VERSION.
2022-10-18 14:20:44 -04:00
Juan M. Guerrero
b16913a67e Support building with DJGPP 2.05
* builddos.bat: Use env var settings for paths.  Fix a typo in
expand.o.  Add the missing load.o compilation and link.  Enable
Guile support.  Copy Basic.mk from the correct location.
* src/configh.dos.templage: DJGPP supports strtoll() and ssize_t
given new enough versions.  Set preprocessor variables to 1 not 0.
2022-10-16 16:19:42 -04:00
Paul Smith
72ee43c473 * src/job.c: [SV 63185] Include sys/loadavg.h if needed. 2022-10-16 16:19:42 -04:00
Paul Smith
e5e538fb7a [SV 63215] Remember the random seed for shuffle mode
Basic fix provided by James Hilliard <james.hilliard1@gmail.com>.
Ensure we remember and propagate the random seed we generate during
shuffle mode.  Also add a debug statement displaying the seed.

* src/shuffle.c (shuffle_set_mode): Init and save the randoms seed.
* src/misc.c (make_rand): Code cleanups.
* src/main.c (main): Show a debug message containing the seed.
2022-10-16 16:18:21 -04:00
Paul Smith
c453f898a0 Use (void) rather than () in function declarations
In C, a function declaration with () allows any set of arguments.
Use (void) to mean "no arguments".

* src/dep.h: Switch () to (void) for functions with no arguments.
* src/makeint.h: Ditto.
* src/os.h: Ditto.
* src/shuffle.h: Ditto.
* src/variable.h: Ditto.
2022-10-15 18:39:32 -04:00
Paul Smith
18c4b508ef [SV 63157] Ensure temporary files are removed when signaled
Original patch from Dmitry Goncharov <dgoncharov@users.sf.net>.
When handling a fatal signal ensure the temporary files for
stdin and the jobserver fifo (if in use) are deleted.

* src/makeint.h (temp_stdin_unlink): Declare a new method.
* src/main.c (temp_stdin_unlink): Delete the stdin temporary file
if it exists.  If the unlink fails and we're not handling a signal
then show an error.
(main): Call temp_stdin_unlink() instead of unlinking by hand.
* src/commands.c (fatal_error_signal): Invoke cleanup methods if
we're handling a fatal signal.
* tests/scripts/features/output-sync: Test signal handling during
output sync and jobserver with FIFO.
* tests/scripts/features/temp_stdin: Test signal handling when
makefiles are read from stdin.
2022-10-15 18:39:32 -04:00
Paul Smith
383eb3a923 * src/posixos.c (job_root): Remember root jobserver instances
(jobserver_setup): Set job_root to true.
(jobserver_clear): if we're the root instance and we're using a
FIFO, unlink it.  If we're not in a signal handler, free memory.
(jobserver_acquire_all): Call jobserver_clear().
(sync_root): Rename from sync_parent for consistency.
2022-10-15 18:39:32 -04:00
Paul Smith
01b1d4f401 Set the proper type for variables set in signal handlers
* bootstrap.conf: Get gnulib's sig_atomic_t type checking M4 macro.
* configure.ac: Invoke it.
* src/makeint.h (handling_fatal_signal): Set the type correctly.
* src/commands.c (handling_fatal_signal): Ditto.
2022-10-15 18:39:32 -04:00
Paul Smith
3e20e376b7 Clean up some warnings on Windows builds
* src/arscan.c (parse_int): Avoid conversion from int to char and
check for overflow given a max value.
(ar_scan): Check intmax sizes then cast to the proper type.
(ar_member_touch): Get proper return type from ar_scan and cast it
to off_t.
* src/function.c (a_word_hash_cmp): Don't cast from size_t to int.
(func_filter_filterout): Count using unsigned long to avoid casts.
(construct_include_path): Explicitly cast to void*.
* src/shuffle.c (reverse_shuffle_array): Use size_t index.
* src/w32/subproc/sub_proc.c (process_wait_for_multiple_objects):
Initialize the return value in case the count is 0.
2022-10-03 16:08:14 -04:00
Paul Smith
7ddfc42ee3 * src/misc.c (make_lltoa): Use printf format macro from makeint.h
(make_ulltoa): Ditto.
2022-10-03 15:11:57 -04:00
Paul Smith
ca92d83cde * src/arscan.c (ar_scan): Avoid sign comparison warnings
Pacify 12.2.1 20220819 (Red Hat 12.2.1-2) -Wsign-compare by checking
the readbuf() return explicitly for errors then casting from ssize_t.
Initial patch provided by Paul Eggert <eggert@cs.ucla.edu>.
2022-10-03 15:11:57 -04:00
Paul Eggert
ae80eefe65 Support systems with 32-bit long and 64-bit time_t
Don't assume that time_t fits in long, as some hosts (e.g.,
glibc x86 -D_TIME_BITS=64) have 32-bit long and 64-bit time_t.

* bootstrap.conf (gnulib_modules): Add largefile, to support files
with timestamps after Y2038 on hosts with 32-bit long.
* configure.ac: Do not call AC_SYS_LARGEFILE, as the largefile module
does that for us.
* src/makeint.h (PRIdMAX, PRIuMAX, SCNdMAX): Define if not already
defined (taken from gnulib).
* src/ar.c: Include intprops.h, for TYPE_MAXIMUM, as
INTEGER_TYPE_MAXIMUM does not work on time_t without issuing a bunch
of warnings.
(ar_member_date): Check that result is in time_t range.
(ar_member_date_1): Use intmax_t to hold the date.
(ar_glob_match): Ditto.
* src/arscan.c (VMS_function, VMS_function_ret, ar_scan)
(parse_int, ar_scan, ar_member_pos, ar_member_touch)
(describe_member): Convert long int to intmax_t.
* src/file.c (file_timestamp_sprintf): Use intmax_t/uintmax_t instead
of long/unsigned long for values that might be time_t.
* src/arscan.c (ar_member_touch): Fix buffer overrun if the timestamp
is too large.
2022-10-03 15:11:57 -04:00