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From: Laurent Vivier <lvivier@redhat.com>
To: passt-dev@passt.top
Cc: Laurent Vivier <lvivier@redhat.com>
Subject: [PATCH 2/2] passt-repair: Suppress false positive cppcheck negativeIndex warning
Date: Thu, 15 Oct 2026 12:07:41 +0200	[thread overview]
Message-ID: <20261015100741.1583455-3-lvivier@redhat.com> (raw)
In-Reply-To: <20261015100741.1583455-1-lvivier@redhat.com>

By the time we reach buf[n - 1] = '\0', n < 0 and n < sizeof(*ev)
are already handled above, so the index is always positive.  Add a
cppcheck-suppress annotation to silence the false positive.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
---
 passt-repair.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/passt-repair.c b/passt-repair.c
index 80a39086e568..bd9db4d32086 100644
--- a/passt-repair.c
+++ b/passt-repair.c
@@ -95,6 +95,7 @@ static int wait_for_socket(struct sockaddr_un *a, const char *dir,
 			continue;
 		}
 
+		/* cppcheck-suppress negativeIndex */
 		buf[n - 1] = '\0';
 		for (p = buf; p < buf + n; p += sizeof(*ev) + ev->len) {
 			ev = (const struct inotify_event *)p;
-- 
2.56.0


      parent reply	other threads:[~2026-10-15 10:07 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-15 10:07 [PATCH 0/2] cppcheck 2.22.0 fixes Laurent Vivier
2026-10-15 10:07 ` [PATCH 1/2] tcp: Drop always-true !partial_send condition in tcp_data_from_tap() Laurent Vivier
2026-10-15 10:07 ` Laurent Vivier [this message]

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