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-rw-r--r--missing/strerror.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/missing/strerror.c b/missing/strerror.c
index 023935a1ff..d3b61c3f12 100644
--- a/missing/strerror.c
+++ b/missing/strerror.c
@@ -1,5 +1,7 @@
/* public domain rewrite of strerror(3) */
+#include "ruby/missing.h"
+
extern int sys_nerr;
extern char *sys_errlist[];
@@ -11,6 +13,6 @@ strerror(int error)
if (error <= sys_nerr && error > 0) {
return sys_errlist[error];
}
- sprintf(msg, "Unknown error (%d)", error);
+ snprintf(msg, sizeof(msg), "Unknown error (%d)", error);
return msg;
}