prefer 'vsnprintf' to 'vsprintf' (#5561)

2d4654a1 · James Lamb · GitHub · 61ef3ada · 2d4654a1
Unverified Commit 2d4654a1 authored Nov 21, 2022 by James Lamb Committed by GitHub Nov 21, 2022
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include/LightGBM/utils/log.h include/LightGBM/utils/log.h +4 -3

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--- a/include/LightGBM/utils/log.h
+++ b/include/LightGBM/utils/log.h
@@ -109,12 +109,13 @@ class Log {
  }
  static void Fatal(const char *format, ...) {
    va_list val;
-    char str_buf[1024];
+    const size_t kBufSize = 1024;
+    char str_buf[kBufSize];
    va_start(val, format);
 #ifdef _MSC_VER
-    vsprintf_s(str_buf, format, val);
+    vsnprintf_s(str_buf, kBufSize, format, val);
 #else
-    vsprintf(str_buf, format, val);
+    vsnprintf(str_buf, kBufSize, format, val);
 #endif
    va_end(val);