Fixed a crash when printf() formats are set as 0 (NULL).

abduld · Aug 30, 2012 · 4bc20b4 · 4bc20b4
1 parent c2fa075
commit 4bc20b4
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/cstdlib/stdio.c b/cstdlib/stdio.c
@@ -186,12 +186,16 @@ int StdioBasePrintf(struct ParseState *Parser, FILE *Stream, char *StrOut, int S
 {
  struct Value *ThisArg = Args->Param[0];
  int ArgCount = 0;
- char *FPos = Format;
+ char *FPos;
  char OneFormatBuf[MAX_FORMAT+1];
  int OneFormatCount;
  struct ValueType *ShowType;
  StdOutStream SOStream;
 
+ if (Format == NULL)
+ Format = "[null format]\n";
+
+ FPos = Format; 
  SOStream.FilePtr = Stream;
  SOStream.StrOutPtr = StrOut;
  SOStream.StrOutLen = StrOutLen;