51 lines
1.6 KiB
Diff
51 lines
1.6 KiB
Diff
From f7c39616fe887f35abaa4b81466ab7f167e0a410 Mon Sep 17 00:00:00 2001
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From: Daniel Wagner <wagi@monom.org>
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Date: Mon, 19 Aug 2019 08:43:01 +0200
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Subject: [PATCH 01/10] pmqtest: Increase buffer to avoid overflow
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Increase the size of the char buffer. gcc 9.1.1 reports:
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src/pmqtest/pmqtest.c: In function ‘main’:
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src/pmqtest/pmqtest.c:46:21: warning: ‘%d’ directive writing between 1 and 10 bytes into a region of size 8 [-Wformat-overflow=]
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46 | #define SYNCMQ_NAME "/syncmsg%d"
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| ^~~~~~~~~~~~
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src/pmqtest/pmqtest.c:445:3: note: ‘sprintf’ output between 10 and 19 bytes into a destination of size 16
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445 | sprintf(mqname, SYNCMQ_NAME, i);
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| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Signed-off-by: Daniel Wagner <wagi@monom.org>
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Signed-off-by: John Kacur <jkacur@redhat.com>
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---
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src/pmqtest/pmqtest.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/src/pmqtest/pmqtest.c b/src/pmqtest/pmqtest.c
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index a04fc49872bf..3ce799bd6319 100644
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--- a/src/pmqtest/pmqtest.c
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+++ b/src/pmqtest/pmqtest.c
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@@ -440,7 +440,7 @@ int main(int argc, char *argv[])
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goto nomem;
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for (i = 0; i < num_threads; i++) {
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- char mqname[16];
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+ char mqname[19];
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sprintf(mqname, SYNCMQ_NAME, i);
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receiver[i].syncmq = mq_open(mqname, oflag, 0777, &mqstat);
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@@ -567,7 +567,7 @@ int main(int argc, char *argv[])
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}
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nanosleep(&maindelay, NULL);
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for (i = 0; i < num_threads; i++) {
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- char mqname[16];
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+ char mqname[19];
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mq_close(receiver[i].syncmq);
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sprintf(mqname, SYNCMQ_NAME, i);
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--
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2.20.1
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