Fix the following strncpy() string truncation warning:
In function ‘strncat’,
inlined from ‘print_all_controllers_in_hierarchy’ at lssubsys.c:134:4,
inlined from ‘cgroup_list_all_controllers’ at lssubsys.c:222:9,
inlined from ‘main’ at lssubsys.c:290:8:
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:136:10: warning:
‘__builtin___strncat_chk’ output may be truncated copying 4095 bytes from a
string of length 4095 [-Wstringop-truncation]
136 | return __builtin___strncat_chk (__dest, __src, __len, __bos (__dest));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Tom Hromatka <[email protected]>
---
src/tools/lssubsys.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/tools/lssubsys.c b/src/tools/lssubsys.c
index d0a88b62468e..e77859b40e33 100644
--- a/src/tools/lssubsys.c
+++ b/src/tools/lssubsys.c
@@ -132,6 +132,7 @@ static int print_all_controllers_in_hierarchy(const char
*tname,
/* the next controller in the hierarchy */
strncat(cont_names, ",", FILENAME_MAX-1);
strncat(cont_names, info.name, FILENAME_MAX-1);
+ cont_names[sizeof(cont_names) - 1] = '\0';
}
next:
ret = cgroup_get_all_controller_next(&handle, &info);
--
2.25.1
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