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Groups > comp.lang.c > #108161
| From | Ben Bacarisse <ben.usenet@bsb.me.uk> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: main() |
| Date | 2017-04-15 16:50 +0100 |
| Organization | A noiseless patient Spider |
| Message-ID | <87mvbhpt4n.fsf@bsb.me.uk> (permalink) |
| References | <ecUHA.285656$15.165152@fx07.am4> <dI3IA.10330$sn6.1876@fx44.iad> <bU3IA.457701$4n3.358291@fx14.am4> <f8634432-85fa-43f8-b4f6-37114705386b@googlegroups.com> |
Malcolm McLean <malcolm.mclean5@btinternet.com> writes:
> On Friday, April 14, 2017 at 2:11:42 PM UTC+1, Bart wrote:
>> On 14/04/2017 13:58, Scott Lurndal wrote:
>>
>> > envp contains a list of all exported environment variables and their
>> > values. auxv conveys information from the run-time ELF loader.
>>
>> Interesting, I didn't know main() could take extra parameters. On
>> Windows (as I don't have a handy Linux at the minute) this works:
>>
>> #include <stdio.h>
>> #include <stdlib.h>
>>
>> int main(int n, char** args, char** env) {
>> int i;
>>
>> for (i=0; i<n; ++i)
>> | printf("%d: %s\n",i,args[i]);
>>
>> while (**env) {
>> | printf("Env str: %s\n",*env);
>> | *env += strlen(*env)+1;
>> }
>>
>> }
>>
> Exactly.
> envp is one of those things which probably should be in the standard but
> isn't, as many programs need the environment variables.
The standard includes getenv for that.
<snip>
--
Ben.
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main() bartc <bc@freeuk.com> - 2017-04-14 00:53 +0100
Re: main() Robert Wessel <robertwessel2@yahoo.com> - 2017-04-13 19:10 -0500
Re: main() antispam@math.uni.wroc.pl - 2017-04-14 02:51 +0000
Re: main() scott@slp53.sl.home (Scott Lurndal) - 2017-04-14 12:58 +0000
Re: main() bartc <bc@freeuk.com> - 2017-04-14 14:11 +0100
Re: main() Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-04-15 07:53 -0700
Re: main() supercat@casperkitty.com - 2017-04-15 08:43 -0700
Re: main() Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-04-15 16:50 +0100
Re: main() Keith Thompson <kst-u@mib.org> - 2017-04-15 15:31 -0700
Re: main() gordonb.y2etp@burditt.org (Gordon Burditt) - 2017-04-16 00:19 -0500
The exec*() family (Was: main()) gazelle@shell.xmission.com (Kenny McCormack) - 2017-04-15 17:01 +0000
Re: main() Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2017-04-14 10:04 -0400
Re: main() bartc <bc@freeuk.com> - 2017-04-14 15:52 +0100
Re: main() scott@slp53.sl.home (Scott Lurndal) - 2017-04-14 15:00 +0000
Re: main() Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2017-04-14 13:49 -0400
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