diff options
| author | Thomas Huth <thuth@redhat.com> | 2020-09-25 16:40:16 +0100 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2020-10-02 12:28:48 +0100 |
| commit | 043c2c1a5d4dafa330680ca9a3a0369d9a93ef4e (patch) | |
| tree | 3a5ac6b6707fe0e68ee6f07a118463326e080842 | |
| parent | b5ce42f5d138d7546f9faa2decbd6ee8702243a3 (diff) | |
migration: Silence compiler warning in global_state_store_running()
GCC 9.3.0 on Ubuntu complains:
In file included from /usr/include/string.h:495,
from /home/travis/build/huth/qemu/include/qemu/osdep.h:87,
from ../migration/global_state.c:13:
In function ‘strncpy’,
inlined from ‘global_state_store_running’ at ../migration/global_state.c:47:5:
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:106:10: error:
‘__builtin_strncpy’ specified bound 100 equals destination size [-Werror=stringop-truncation]
106 | return __builtin___strncpy_chk (__dest, __src, __len, __bos (__dest));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
... but we apparently really want to do a strncpy here - the size is already
checked with the assert() statement right in front of it. To silence the
warning, simply replace it with our strpadcpy() function.
Suggested-by: Philippe Mathieu-Daudé <philmd@redhat.com> (two years ago)
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200918103430.297167-4-thuth@redhat.com>
Message-Id: <20200925154027.12672-5-alex.bennee@linaro.org>
| -rw-r--r-- | migration/global_state.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/migration/global_state.c b/migration/global_state.c index 25311479a4..a33947ca32 100644 --- a/migration/global_state.c +++ b/migration/global_state.c @@ -44,8 +44,8 @@ void global_state_store_running(void) { const char *state = RunState_str(RUN_STATE_RUNNING); assert(strlen(state) < sizeof(global_state.runstate)); - strncpy((char *)global_state.runstate, - state, sizeof(global_state.runstate)); + strpadcpy((char *)global_state.runstate, sizeof(global_state.runstate), + state, '\0'); } bool global_state_received(void) |