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[rt-tests,v0,2/4] sigwaittest: Increase buffer to avoid overflow

Message ID 20190816064204.6339-3-wagi@monom.org
State Superseded
Headers show
Series Fix gcc warning | expand

Commit Message

Daniel Wagner Aug. 16, 2019, 6:42 a.m. UTC 
Increase the size of the char buffer. gcc 9.1.1 reports:

src/sigwaittest/sigwaittest.c:494:5: note: ‘sprintf’ output between 5 and 14 bytes into a destination of size 8
  494 |     sprintf(f_opt, "-fr%d", i);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~
src/sigwaittest/sigwaittest.c:522:24: warning: ‘%d’ directive writing between 1 and 10 bytes into a region of size 5 [-Wformat-overflow=]
  522 |     sprintf(f_opt, "-fs%d", i);
      |                        ^~

Signed-off-by: Daniel Wagner <wagi@monom.org>

---
 src/sigwaittest/sigwaittest.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.21.0
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Patch

diff --git a/src/sigwaittest/sigwaittest.c b/src/sigwaittest/sigwaittest.c
index 59f28a5babcb..a98332f13e38 100644
--- a/src/sigwaittest/sigwaittest.c
+++ b/src/sigwaittest/sigwaittest.c
@@ -352,7 +352,7 @@  int main(int argc, char *argv[])
 	struct params *sender = NULL;
 	sigset_t sigset;
 	void *param = NULL;
-	char f_opt[8];
+	char f_opt[32];
 	struct timespec launchdelay, maindelay;
 
 	process_options(argc, argv);