From: "Tim \"Zastai\" Van Holder" <zastai AT hotmail DOT com>
Newsgroups: comp.os.msdos.djgpp
References: <l%K75.252146$k22 DOT 1109779 AT flipper>
Subject: Re: Pipe to sendmail (like Perl)
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Message-ID: <_zL75.80726$NF5.1352833@afrodite.telenet-ops.be>
Date: Sun, 02 Jul 2000 18:10:02 GMT
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Hi,

I don't think C++ has pipe-specific functions in its library (ie I don't
think there's a pipestream class), but you can use the C popen()/pclose()
calls to achieve what you want:

----
#include <cstdio>

extern char *to, *from, *subject, *body;

int
main(void)
{
FILE* mailpipe = popen("/usr/bin/sendmail -oi -t");
  if (mailpipe != 0) {
    fprintf (mailpipe, "To: %s\nFrom: %s\nSubject: %s\n", to, from,
subject);
    fputs (mailpipe, body);
    pclose (mailpipe);
  } else cerr << "Couldn't open pipe to mailprogram." << endl;
  return 0;
}
----

Zastai

Olaf van der Spek <Olaf AT XCC DOT TMFWeb DOT NL> wrote in message
news:l%K75.252146$k22 DOT 1109779 AT flipper...
> Hi,
>
> I try to use a C++ program to send a mail using sendmail on a Unix server.
> In Perl, you can use this:
> $mailprog = '/usr/sbin/sendmail';
>    open (MAIL, "|$mailprog $in{'address'}") || die "Can't open
> $mailprog!\n";
>    print MAIL "From: $admin_email\n";
>    print MAIL "Subject: You are added!\n\n";
>    print MAIL <<to_the_end;
> This is to confirm your addition to the $list_name.
> to_the_end
>
> So in C++, I tried:
> void send_mail(const string& from, const string& to, const string&
subject,
> const string& body)
> {
>  ofstream mail;
>  mail.open("|/usr/sbin/sendmail -oi -t");
>  if (!mail.is_open())
>   cout << "Can't open pipe to sendmail" << endl;
>  mail << "To: " << to << endl
>   << "From: " << from << endl
>   << "Subject: " << subject << endl
>   << body;
> }
>
> But that didn't work, I got the error "Can't open pipe to sendmail".
> Anybody knows how this could be solved?
>
> --
>
> Olaf van der Spek
> Almere, Holland
> Olaf AT XCC DOT TMFWeb DOT NL
> http://xcc.tiberian.com/
>
>