From 21cc66e990fe395cdf138c1af9885b74387f6867 Mon Sep 17 00:00:00 2001
From: kosako <kosako@sofnec.co.jp>
Date: Mon, 18 Apr 2016 13:44:27 +0900
Subject: [PATCH] define xsnprintf() macro for Windows platform

---
 src/regerror.c   |  4 ++--
 src/regint.h     |  2 ++
 src/regposerr.c  |  8 +++++++-
 src/regversion.c | 19 ++++++++++---------
 4 files changed, 21 insertions(+), 12 deletions(-)

diff --git a/src/regerror.c b/src/regerror.c
index 94a163e..ab24b4c 100644
--- a/src/regerror.c
+++ b/src/regerror.c
@@ -184,12 +184,12 @@ onig_error_code_to_format(int code)
 
 static void sprint_byte(char* s, unsigned int v)
 {
-  sprintf(s, "%02x", (v & 0377));
+  xsnprintf(s, 3, "%02x", (v & 0377));
 }
 
 static void sprint_byte_with_x(char* s, unsigned int v)
 {
-  sprintf(s, "\\x%02x", (v & 0377));
+  xsnprintf(s, 5, "\\x%02x", (v & 0377));
 }
 
 static int to_ascii(OnigEncoding enc, UChar *s, UChar *end,
diff --git a/src/regint.h b/src/regint.h
index 7a39839..9d9d5df 100644
--- a/src/regint.h
+++ b/src/regint.h
@@ -129,9 +129,11 @@
 #if defined(_WIN32) && !defined(__GNUC__)
 #define xalloca     _alloca
 #define xvsnprintf  _vsnprintf
+#define xsnprintf   sprintf_s
 #else
 #define xalloca     alloca
 #define xvsnprintf  vsnprintf
+#define xsnprintf   snprintf
 #endif
 
 
diff --git a/src/regposerr.c b/src/regposerr.c
index b5d7f6b..c6db2e2 100644
--- a/src/regposerr.c
+++ b/src/regposerr.c
@@ -42,6 +42,12 @@
 #  define ARG_UNUSED
 #endif
 
+#if defined(_WIN32) && !defined(__GNUC__)
+#define xsnprintf   sprintf_s
+#else
+#define xsnprintf   snprintf
+#endif
+
 static char* ESTRING[] = {
   NULL,
   "failed to match",                         /* REG_NOMATCH    */
@@ -83,7 +89,7 @@ regerror(int posix_ecode, const regex_t* reg ARG_UNUSED, char* buf,
     s = "";
   }
   else {
-    sprintf(tbuf, "undefined error code (%d)", posix_ecode);
+    xsnprintf(tbuf, sizeof(tbuf), "undefined error code (%d)", posix_ecode);
     s = tbuf;
   }
 
diff --git a/src/regversion.c b/src/regversion.c
index 113fbae..245a001 100644
--- a/src/regversion.c
+++ b/src/regversion.c
@@ -28,7 +28,7 @@
  */
 
 #include "config.h"
-#include "oniguruma.h"
+#include "regint.h"
 #include <stdio.h>
 
 extern const char*
@@ -36,10 +36,10 @@ onig_version(void)
 {
   static char s[12];
 
-  sprintf(s, "%d.%d.%d",
-          ONIGURUMA_VERSION_MAJOR,
-          ONIGURUMA_VERSION_MINOR,
-          ONIGURUMA_VERSION_TEENY);
+  xsnprintf(s, sizeof(s), "%d.%d.%d",
+            ONIGURUMA_VERSION_MAJOR,
+            ONIGURUMA_VERSION_MINOR,
+            ONIGURUMA_VERSION_TEENY);
   return s;
 }
 
@@ -48,9 +48,10 @@ onig_copyright(void)
 {
   static char s[58];
 
-  sprintf(s, "Oniguruma %d.%d.%d : Copyright (C) 2002-2008 K.Kosako",
-          ONIGURUMA_VERSION_MAJOR,
-          ONIGURUMA_VERSION_MINOR,
-          ONIGURUMA_VERSION_TEENY);
+  xsnprintf(s, sizeof(s),
+            "Oniguruma %d.%d.%d : Copyright (C) 2002-2016 K.Kosako",
+            ONIGURUMA_VERSION_MAJOR,
+            ONIGURUMA_VERSION_MINOR,
+            ONIGURUMA_VERSION_TEENY);
   return s;
 }
-- 
2.40.0