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authorEric Biggers <ebiggers@google.com>2023-01-21 12:32:03 -0800
committerTheodore Ts'o <tytso@mit.edu>2023-01-27 12:33:59 -0500
commitc093c7527d4c2baedef32d6eb31175e48af3b99d (patch)
tree68f8ea32ddcc32c33ddf17c63ecc7e63281d5e6b
parentb575249eb334e3f95319eea68c9606f43db05a07 (diff)
downloade2fsprogs-c093c7527d4c2baedef32d6eb31175e48af3b99d.tar.gz
lib/blkid: suppress -Wstringop-truncation warning in blkid_strndup()
Unfortunately, gcc gets confused by blkid_strndup() and incorrectly thinks the destination string is not being null-terminated. This is part of -Wstringop-truncation, enabled automatically by -Wall in gcc 8 and later. Let's just suppress this warning here. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
-rw-r--r--lib/blkid/devno.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/blkid/devno.c b/lib/blkid/devno.c
index 34ceb3c48..b1cadc9df 100644
--- a/lib/blkid/devno.c
+++ b/lib/blkid/devno.c
@@ -37,6 +37,12 @@
#include "blkidP.h"
+#if defined(__GNUC__) && __GNUC__ >= 8
+/* gcc incorrectly thinks the destination string is not being null-terminated */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wstringop-truncation"
+#endif
+
char *blkid_strndup(const char *s, int length)
{
char *ret;
@@ -55,6 +61,10 @@ char *blkid_strndup(const char *s, int length)
return ret;
}
+#if defined(__GNUC__) && __GNUC__ >= 8
+#pragma GCC diagnostic pop
+#endif
+
char *blkid_strdup(const char *s)
{
return blkid_strndup(s, 0);