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-rw-r--r--test/external.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/test/external.c b/test/external.c
index c31701d..1e4e32a 100644
--- a/test/external.c
+++ b/test/external.c
@@ -890,8 +890,8 @@ test_write_file_set(hid_t fapl)
for (i = 0; i < N_EXT_FILES; i++) {
char name1[64], name2[64];
- HDsprintf(name1, "extern_%dr.raw", i + 1);
- HDsprintf(name2, "extern_%dw.raw", i + 1);
+ HDsnprintf(name1, sizeof(name1), "extern_%dr.raw", i + 1);
+ HDsnprintf(name2, sizeof(name2), "extern_%dw.raw", i + 1);
if (!files_have_same_contents(name1, name2))
FAIL_PUTS_ERROR(" Output differs from expected value.")
} /* end for */