From owner-freebsd-bugs  Thu May 30 10:22:28 2002
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Date: Thu, 30 May 2002 20:22:08 +0000
From: mm <meadele@nerim.net>
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To: freebsd-bugs@freebsd.org
Cc: meadele@nerim.net
Subject: snprintf() bug ?
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Hello,

I hope i'm posting in the right place.
I was writting some piece of code, and just saw some big memory leak,
after inspecting my code I found that snprintf() was memory leaking.
I used this test code:

  int ln;
  char *a_stuff = "hello";
  char *b_stuff = "world";

  while( 1 )
      ln = snprintf(NULL, 0, "%s=%s", a_stuff, b_stuff);

This result in memory leak, BUT if I use:

  char buf[1];
  int ln;
  char *a_stuff = "hello";
  char *b_stuff = "world";

  while( 1 )
      ln = snprintf(buf, 0, "%s=%s", a_stuff, b_stuff);

No memory leak.

Is this a snprintf() bug, or am i doing something wrong ?
I'm using FreeBSD-4.4.

Best regards,

  Meadele Mathieu.


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