Messages in this thread |  | | Date | Fri, 20 Aug 2004 09:33:22 -0700 | From | William Lee Irwin III <> | Subject | Re: setproctitle |
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* William Lee Irwin III <wli@holomorphy.com> dixit: >> The command-line arguments are being fetched from the process address >> space, i.e. simply editing argv[] in userspace will have the desired >> effect. Though this code is butt ugly.
On Fri, Aug 20, 2004 at 06:20:27PM +0200, DervishD wrote: > The problem with this is that is non-portable. Not all Unices > (AFAIK) have this behaviour. The portable solution for changing > argv[0] is to use ONLY the space currently allocated to argv[0]. I > mean, you take argv[0], do a strlen() and overwrite only strlen bytes > of it. The problem with this is that you cannot write an arbitrary > string there. If all Unices provide 'setproctitle' that problem > dissapears. > Anyway is cool to know that, under Linux, I can change the > argv[0] with no problems.
It is not portable behavior. It is a description of how to implement setproctitle(3) in Linux.
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