fixes issue #2446

src/common/fname.c

@@ -33,6 +33,7 @@
 
 
 
+#include <stdio.h>
 #include <string.h>
 
 #include "xmalloc.h"
@@ -115,3 +116,23 @@ char* MakeFilename (const char* Origin, const char* Ext)
     }
     return Out;
 }
+
+
+
+char* MakeTmpFilename (const char* Origin, const char* Ext)
+/* Make a new temporary file name from Ext.  tmpnam(3) is called
+** and Ext is appended to generate the filename. Origin is ignored.
+** The result is placed in a malloc'ed buffer and returned.
+*/
+{
+    char* Out;
+    char Buffer[L_tmpnam * 2]; /* a lazy way to ensure we have space for Ext */
+
+    tmpnam(Buffer);
+    strcat(Buffer, Ext);
+
+    Out = xmalloc (strlen (Buffer) + 1);
+    strcpy (Out, Buffer);
+
+    return Out;
+}

src/common/fname.h

@@ -59,6 +59,12 @@ char* MakeFilename (const char* Origin, const char* Ext);
 ** The function may be used to create "foo.o" from "foo.s".
 */
 
+char* MakeTmpFilename (const char* Origin, const char* Ext);
+/* Make a new temporary file name from Ext.  tmpnam(3) is called
+** and Ext is appended to generate the filename. Origin is ignored.
+** The result is placed in a malloc'ed buffer and returned.
+*/
+
 
 
 /* End of fname.h */