From owner-cvs-all  Tue Apr 17  0:59:59 2001
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From: Kris Kennaway <kris@FreeBSD.org>
Date: Tue, 17 Apr 2001 00:59:54 -0700 (PDT)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/lib/libc/gen fmtcheck.3 fmtcheck.c Makefile.inc
         src/include stdio.h
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kris        2001/04/17 00:59:54 PDT

  Modified files:
    lib/libc/gen         Makefile.inc 
    include              stdio.h 
  Added files:
    lib/libc/gen         fmtcheck.3 fmtcheck.c 
  Log:
  Add fmtcheck(), a function for checking consistency of format string
  arguments where the format string is obtained from user data, or
  otherwise difficult to verify statically.
  
  Example usage:
  
  printf(fmtcheck(user_format, standard_format), arg1, arg2);
  
  checks the format string user_format for consistency (same number/order/
  type of format operators) with standard_format.  If they differ,
  standard_format is used instead to avoid potential crashes or security
  violations.
  
  Obtained from:  NetBSD
  Reviewed by:    -arch
  
  Revision  Changes    Path
  1.77      +3 -3      src/lib/libc/gen/Makefile.inc
  1.32      +3 -1      src/include/stdio.h


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