From 71383c9c73bf86977caf83f9b0b88cd15e57225a Mon Sep 17 00:00:00 2001
From: Marek Roszko <mark.roszko@gmail.com>
Date: Sun, 17 Dec 2023 20:56:15 -0500
Subject: [PATCH] Fix warnings about sprintf use.

---
 pcb_calculator/transline/coax.cpp          | 4 ++--
 pcb_calculator/transline/rectwaveguide.cpp | 6 +++---
 thirdparty/dxflib_qcad/dl_writer_ascii.cpp | 6 +++---
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/pcb_calculator/transline/coax.cpp b/pcb_calculator/transline/coax.cpp
index ab4cf5e162..41ec7bdcbc 100644
--- a/pcb_calculator/transline/coax.cpp
+++ b/pcb_calculator/transline/coax.cpp
@@ -238,7 +238,7 @@ void COAX::show_results()
 
         while( ( m_parameters[CUTOFF_FREQUENCY_PRM] <= m_parameters[FREQUENCY_PRM] ) && ( m < 10 ) )
         {
-            sprintf( txt, "H(n,%d) ", m );
+            snprintf( txt, sizeof( text ), "H(n,%d) ", m );
             strcat( text, txt );
             m++;
             m_parameters[CUTOFF_FREQUENCY_PRM] =
@@ -262,7 +262,7 @@ void COAX::show_results()
 
         while( ( m_parameters[CUTOFF_FREQUENCY_PRM] <= m_parameters[FREQUENCY_PRM] ) && ( m < 10 ) )
         {
-            sprintf( txt, "E(n,%d) ", m );
+            snprintf( txt, sizeof( text ), "E(n,%d) ", m );
             strcat( text, txt );
             m++;
             m_parameters[CUTOFF_FREQUENCY_PRM] =
diff --git a/pcb_calculator/transline/rectwaveguide.cpp b/pcb_calculator/transline/rectwaveguide.cpp
index e7b26082e8..b294455e12 100644
--- a/pcb_calculator/transline/rectwaveguide.cpp
+++ b/pcb_calculator/transline/rectwaveguide.cpp
@@ -279,7 +279,7 @@ void RECTWAVEGUIDE::calcAnalyze()
 /*
  * synthesize - synthesis function
  * source: re-arrangment of calcAnalyze equation
- * TE10 (via fc(1,0) ) results in the b term not influencing the result, as long as 
+ * TE10 (via fc(1,0) ) results in the b term not influencing the result, as long as
  * 1) fc > f
  * 2) a > b
  */
@@ -400,7 +400,7 @@ void RECTWAVEGUIDE::show_results()
 
                 if( m_parameters[FREQUENCY_PRM] >= ( fc( m, n ) ) )
                 {
-                    sprintf( txt, "H(%d,%d) ", m, n );
+                    snprintf( txt, sizeof( txt ), "H(%d,%d) ", m, n );
                     if( ( strlen( text ) + strlen( txt ) + 5 ) < MAXSTRLEN )
                     {
                         strcat( text, txt );
@@ -430,7 +430,7 @@ void RECTWAVEGUIDE::show_results()
             {
                 if( m_parameters[FREQUENCY_PRM] >= fc( m, n ) )
                 {
-                    sprintf( txt, "E(%d,%d) ", m, n );
+                    snprintf( txt, sizeof( txt ), "E(%d,%d) ", m, n );
                     if( ( strlen( text ) + strlen( txt ) + 5 ) < MAXSTRLEN )
                     {
                         strcat( text, txt );
diff --git a/thirdparty/dxflib_qcad/dl_writer_ascii.cpp b/thirdparty/dxflib_qcad/dl_writer_ascii.cpp
index d5452bc862..1780ddd880 100644
--- a/thirdparty/dxflib_qcad/dl_writer_ascii.cpp
+++ b/thirdparty/dxflib_qcad/dl_writer_ascii.cpp
@@ -62,11 +62,11 @@ void DL_WriterA::dxfReal( int gc, double value ) const
 
     if( version==DL_Codes::AC1009_MIN )
     {
-        sprintf( str, "%.6lf", value );
+        snprintf( str, sizeof( str ), "%.6lf", value );
     }
     else
     {
-        sprintf( str, "%.16lf", value );
+        snprintf( str, sizeof( str ), "%.16lf", value );
     }
 
     // fix for german locale:
@@ -122,7 +122,7 @@ void DL_WriterA::dxfHex( int gc, int value ) const
 {
     char str[12];
 
-    sprintf( str, "%0X", value );
+    snprintf( str, sizeof( str ), "%0X", value );
     dxfString( gc, str );
 }