Re: [PATCH] Use strdup in dd to avoid changing argv elements

[Andreas Schwab]

Eric Blake <address@hidden> writes:

> http://www.opengroup.org/onlinepubs/009695399/functions/execl.html
> "The statement about argv[] and envp[] being constants is included to make
> explicit to future writers of language bindings that these objects are
> completely constant. Due to a limitation of the ISO C standard, it is not
> possible to state that idea in standard C."

I think you are mixing up something here.  This statement is only
related to the fact that a call to exec* must not modify any of the argv
and envp strings, despite the difficulty of expressing that in the
prototype.  The C standard explicitly requires that the argv array
contents are modifiable in the executed process.

Andreas.

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Andreas Schwab, SuSE Labs, address@hidden
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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