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How to read environment variable in Glibc code

From: naveen yadav <yad dot naveen at gmail dot com>
To: libc-help at sourceware dot org, gcc-help at gcc dot gnu dot org, gcc-help at gnu dot org
Date: Mon, 9 Jan 2012 17:59:06 +0530
Subject: How to read environment variable in Glibc code
References: <CAJ8eaTw=DxFEPDJ_zUra6LvoAa1cn9v1Ls+6pyGJQ4PDyXyi8w@mail.gmail.com>

Dear All,

I want to disable/enable printf out put to screen by reading
environment variable similar to LD_DEBUG.

I want to control ./stdio-common/printf.c.

So if in environment variable says disable printf it call
int
__printf (const char *format, ...)
{
return done;

}

else it execute original code.

Thanks

Follow-Ups:
- Re: How to read environment variable in Glibc code
  - From: Carlos O'Donell

References:
- How to read environment variable in Glibc code
  - From: naveen yadav

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