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qemu/util
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Eric Blake c25b168344 cutils: Improve qemu_strtod* error paths 
Previous patches changed all integral qemu_strto*() error paths to
guarantee that *value is never left uninitialized.  Do likewise for
qemu_strtod.  Also, tighten qemu_strtod_finite() to never return a
non-finite value (prior to this patch, we were rejecting "inf" with
-EINVAL and unspecified result 0.0, but failing "9e999" with -ERANGE
and HUGE_VAL - which is infinite on IEEE machines - despite our
function claiming to recognize only finite values).

Auditing callers, we have no external callers of qemu_strtod, and
among the callers of qemu_strtod_finite:

- qapi/qobject-input-visitor.c:qobject_input_type_number_keyval() and
  qapi/string-input-visitor.c:parse_type_number() which reject all
  errors (does not matter what we store)

- utils/cutils.c:do_strtosz() incorrectly assumes that *endptr points
  to '.' on all failures (that is, it is not distinguishing between
  EINVAL and ERANGE; and therefore still does the WRONG THING for
  "9.9e999".  The change here does not entirely fix that (a later
  patch will tackle this more systematically), but at least it fixes
  the read-out-of-bounds first diagnosed in
  https://gitlab.com/qemu-project/qemu/-/issues/1629

- our testsuite, which we can update to match what we document

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Hanna Czenczek <hreitz@redhat.com>
CC: qemu-stable@nongnu.org
Message-Id: <20230522190441.64278-19-eblake@redhat.com>
2023-06-02 12:29:27 -05:00
..
aio-posix.c aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
aio-posix.h aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
aio-wait.c aio-wait: avoid AioContext lock in aio_wait_bh_oneshot() 2023-05-10 14:15:13 +02:00
aio-win32.c aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
aiocb.c block: move AioContext, QEMUTimer, main-loop to libqemuutil 2017-02-21 11:14:07 +00:00
async-teardown.c util/async-teardown: wire up query-command-line-options 2023-05-16 09:14:18 +02:00
async.c aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
atomic64.c osdep: Move memalign-related functions to their own header 2022-03-07 13:16:49 +00:00
base64.c nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
bitmap.c migration: Use non-atomic ops for clear log bitmap 2022-11-21 11:58:10 +01:00
bitops.c replace TABs with spaces 2023-03-20 12:43:50 +01:00
block-helpers.c block: move logical block size check function to a common utility function 2020-10-23 13:42:16 +01:00
block-helpers.h block: move logical block size check function to a common utility function 2020-10-23 13:42:16 +01:00
buffer.c nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
bufferiszero.c util/bufferiszero: Use i386 host/cpuinfo.h 2023-05-23 16:51:13 -07:00
cacheflush.c util/cacheflush: fix cache on windows-arm64 2023-02-21 08:53:03 -10:00
compatfd.c util: replace pipe()+cloexec with g_unix_open_pipe() 2022-05-03 15:18:14 +04:00
coroutine-sigaltstack.c Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
coroutine-ucontext.c coroutine-ucontext: use QEMU_DEFINE_STATIC_CO_TLS() 2022-05-04 15:55:23 +02:00
coroutine-windows.c build: move coroutine backend selection to meson 2023-05-18 08:53:52 +02:00
cpuinfo-aarch64.c util: Add cpuinfo-aarch64.c 2023-05-23 16:51:18 -07:00
cpuinfo-i386.c util: Add i386 CPUINFO_ATOMIC_VMOVDQU 2023-05-23 16:49:33 -07:00
crc-ccitt.c util: Add CRC16 (CCITT) calculation routines 2021-01-24 20:10:54 +01:00
crc32c.c igb: Implement Rx SCTP CSO 2023-05-23 15:20:15 +08:00
cutils.c cutils: Improve qemu_strtod* error paths 2023-06-02 12:29:27 -05:00
dbus.c util: add dbus helper unit 2020-01-06 18:41:32 +04:00
drm.c util/drm: make portable by avoiding struct dirent d_type 2020-07-13 14:36:10 +01:00
envlist.c replace TABs with spaces 2023-03-20 12:43:50 +01:00
error-report.c util/error: add G_GNUC_PRINTF for various functions 2023-01-11 10:44:34 +01:00
error.c util/error: Fix use-after-free errors reported by Coverity 2023-04-06 12:38:42 -04:00
event_notifier-posix.c Replace qemu_pipe() with g_unix_open_pipe() 2022-05-03 15:17:56 +04:00
event_notifier-win32.c Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
fdmon-epoll.c aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
fdmon-io_uring.c aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
fdmon-poll.c aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
fifo8.c utils/fifo8: change fatal errors from abort() to assert() 2021-02-07 20:38:20 +00:00
filemonitor-inotify.c nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
filemonitor-stub.c nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
getauxval.c util/getauxval: Porting to FreeBSD getauxval feature 2020-06-26 06:45:29 -04:00
guest-random.c cutils: Adjust signature of parse_uint[_full] 2023-06-02 12:27:19 -05:00
hbitmap.c hbitmap: fix hbitmap_status() return value for first dirty bit case 2023-02-17 14:34:24 +01:00
hexdump.c include: move C/util-related declarations to cutils.h 2022-04-06 14:31:43 +02:00
host-utils.c host-utils: Implemented signed 256-by-128 division 2022-06-20 08:38:58 -03:00
id.c net: Use id_generate() in the network subsystem, too 2021-03-09 21:47:45 +01:00
int128.c include/qemu/int128: Use Int128 structure for TCI 2023-02-04 06:19:42 -10:00
interval-tree.c util: Add interval-tree.c 2022-12-20 17:09:41 -08:00
iov.c util: make do_send_recv work with partial send/recv 2022-10-12 19:22:01 +04:00
iova-tree.c util: accept iova_tree_remove_parameter by value 2022-09-02 10:22:39 +08:00
keyval.c include: add qemu/keyval.h 2022-04-21 17:03:51 +04:00
lockcnt.c qemu/atomic.h: rename atomic_ to qatomic_ 2020-09-23 16:07:44 +01:00
log.c log: Remove unneeded new line 2023-03-08 00:37:48 +01:00
main-loop.c aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
memalign.c osdep: Move memalign-related functions to their own header 2022-03-07 13:16:49 +00:00
memfd.c linux-user: add memfd_create 2019-09-11 08:46:17 +02:00
meson.build util: Add cpuinfo-aarch64.c 2023-05-23 16:51:18 -07:00
mmap-alloc.c util/mmap-alloc: qemu_fd_getfs() 2023-04-24 11:29:00 +02:00
module.c module: add Error arguments to module_load and module_load_qom 2022-11-06 09:48:50 +01:00
notify.c xen / notify: introduce a new XenWatchList abstraction 2019-09-24 12:18:47 +01:00
nvdimm-utils.c Clean up includes 2020-12-10 17:16:44 +01:00
osdep.c error handling: Use RETRY_ON_EINTR() macro where applicable 2023-01-09 13:50:47 +01:00
oslib-posix.c util: drop qemu_fork() 2023-03-13 15:23:37 +04:00
oslib-win32.c win32: wrap socket close() with an exception handler 2023-05-28 13:08:25 +04:00
path.c util/path: Do not cache all filenames at startup 2019-06-24 22:19:30 +02:00
qdist.c
qemu-co-shared-resource.c co-shared-resource: protect with a mutex 2021-06-25 14:24:24 +03:00
qemu-co-timeout.c util: add qemu-co-timeout 2022-06-29 10:56:12 +03:00
qemu-config.c error: Drop superfluous #include "qapi/qmp/qerror.h" 2023-02-23 13:56:14 +01:00
qemu-coroutine-io.c aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
qemu-coroutine-lock.c qemu-coroutine-lock: add smp_mb__after_rmw() 2023-03-07 12:39:53 +01:00
qemu-coroutine-sleep.c coroutine: Clean up superfluous inclusion of qemu/coroutine.h 2023-01-19 10:18:28 +01:00
qemu-coroutine.c qemu-coroutine: remove qatomic_mb_read() 2023-04-20 11:17:35 +02:00
qemu-option.c qemu-option: Allow deleting opts during qemu_opts_foreach() 2021-10-15 16:11:22 +02:00
qemu-print.c monitor: Use getter/setter functions for cur_mon 2020-10-09 07:08:19 +02:00
qemu-progress.c include: move progress API to qemu-progress.h 2022-04-06 14:31:43 +02:00
qemu-sockets.c cutils: Adjust signature of parse_uint[_full] 2023-06-02 12:27:19 -05:00
qemu-thread-common.h Clean up includes 2018-12-20 10:29:08 +01:00
qemu-thread-posix.c qemu-thread-posix: cleanup, fix, document QemuEvent 2023-03-07 12:38:40 +01:00
qemu-thread-win32.c qemu-thread-win32: cleanup, fix, document QemuEvent 2023-03-07 12:38:40 +01:00
qemu-timer-common.c semihosting: Implement SYS_ELAPSED and SYS_TICKFREQ 2021-01-18 10:05:06 +00:00
qemu-timer.c qemu-timer: Skip empty timer lists before locking in qemu_clock_deadline_ns_all 2022-06-21 09:24:34 -07:00
qht.c util/qht: use striped locks under TSAN 2023-02-02 11:48:20 +00:00
qsp.c accel/tcg: include cs_base in our hash calculations 2023-06-01 11:05:05 -04:00
qtree.c tcg: use QTree instead of GTree 2023-03-28 15:23:10 -07:00
range.c Don't talk about the LGPL if the file is licensed under the GPL 2019-01-30 10:51:20 +01:00
rcu.c call_rcu: stop using mb_set/mb_read 2023-05-08 11:10:49 +02:00
readline.c readline: Extract readline_add_completion_of() from monitor 2023-02-04 07:56:54 +01:00
selfmap.c util/selfmap: Discard mapping on error 2021-07-26 07:06:49 -10:00
stats64.c stat64: Add stat64_set() operation 2023-04-27 16:39:43 +02:00
sys_membarrier.c sys_membarrier: fix up include directives 2018-04-05 14:37:38 +02:00
systemd.c systemd: Also clear LISTEN_FDNAMES during systemd socket activation 2023-05-03 14:00:08 -05:00
thread-context.c qapi: Use returned bool to check for failure (again) 2022-12-14 16:19:35 +01:00
thread-pool.c thread-pool: avoid passing the pool parameter every time 2023-04-25 13:17:28 +02:00
throttle.c Remove superfluous timer_del() calls 2021-01-08 15:13:38 +00:00
timed-average.c
trace-events async: Add an optional reentrancy guard to the BH API 2023-04-28 11:31:07 +02:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
transactions.c transactions: Invoke clean() after everything else 2021-11-16 09:43:44 +01:00
unicode.c json: Reject invalid UTF-8 sequences 2018-08-24 20:26:37 +02:00
uri.c Updated the FSF address to <https://www.gnu.org/licenses/> 2023-02-27 09:15:39 +01:00
userfaultfd.c util/userfaultfd: Support /dev/userfaultfd 2023-02-11 16:51:09 +01:00
uuid.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
vfio-helpers.c util/vfio-helpers: Use g_file_read_link() 2023-05-24 09:21:22 +02:00
vhost-user-server.c aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
yank.c yank: Remove dependency on qiochannel 2021-04-01 15:27:44 +04:00