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Failed to connect to MySQL: (1203) User howardkn already has more than 'max_user_connections' active connectionsPath: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Richard Harnden Newsgroups: comp.lang.c Subject: Re: Running an editor from ANSI C Date: Fri, 7 Jun 2024 20:08:03 +0100 Organization: A noiseless patient Spider Lines: 54 Message-ID: References: <87o78dzw1a.fsf@nosuchdomain.example.com> <87frtpznoa.fsf@nosuchdomain.example.com> <871q59yty1.fsf@nosuchdomain.example.com> Reply-To: nospam.harnden@invalid.com MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Fri, 07 Jun 2024 21:08:05 +0200 (CEST) Injection-Info: dont-email.me; posting-host="459b11261669d4f8bcbaef599a03cd81"; logging-data="2304710"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18Ia1e5jgj+sfIjlKEI9jeY5SVxCaYF7ho=" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:JQC2uh5zWXkzNcGNMh4/0XsfR+c= In-Reply-To: X-Antivirus-Status: Clean Content-Language: en-US X-Antivirus: AVG (VPS 240607-6, 6/7/2024), Outbound message Bytes: 3229 On 07/06/2024 19:52, Malcolm McLean wrote: > On 07/06/2024 18:56, Janis Papanagnou wrote: >> On 07.06.2024 14:57, Malcolm McLean wrote: >>> On 07/06/2024 10:37, Keith Thompson wrote: >>>> Malcolm McLean writes: >>>>> >>>>> Ah thank you. But then main has to take an extra parameter. Now  will >>>>> the shell still be absolutely robust, and completely portable, and run >>>>> just anywhere? >>>> >>>> What?  Why would main need an extra parameter? >>>> >>> Hre's the main function for the shell. >>> >>> int main(int argc, char **argv) >>> { >> [...] >>> } >>> >>> Now to get the $EDITOR variable I will have to modify this function. >>> >>> int main(int argc, char **argv, char **envp) >>> >>> Now what are the implications of doing that? [...] >> >> I'm certainly not the most qualified person to answer that, so >> just two comments... >> Declaring the extra parameter doesn't spoil the code, does it? >> (If you don't use it you don't need to specify it. If you have >> declared it you can use it or not.) >> Personally my first reflex would be to use a dedicated function >> to obtain a specific environment variable, specifically getenv(); >> I thought it wouldn't require the 'envp' to work? >> >> For me it works >> >>    #include >>    #include >>    void main (int argc, char * argv[]) >>    { >>        printf ("%s\t%s\n", argv[1], getenv(argv[1])); >>    } >> >> >> Janis >> > Is getenv() standard now? When did it come in? C11, I think. -- This email has been checked for viruses by AVG antivirus software. www.avg.com