Date: Sat, 5 Sep 1998 01:26:07 -0300 (EST) From: Joao Carlos Mendes Luis <jonny@jonny.eng.br> To: wes@softweyr.com (Wes Peters) Cc: lva@dds.nl, freebsd-isp@FreeBSD.ORG, freebsd-security@FreeBSD.ORG Subject: Re: small LDA c program requested Message-ID: <199809050426.BAA20989@roma.coe.ufrj.br> In-Reply-To: <35F1BBD9.7E2A42F@softweyr.com> from Wes Peters at "Sep 5, 98 04:31:53 pm"
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#define quoting(Wes Peters)
// /*
// * Create the file and prepare to write.
// */
// snprintf(mailbox, PATH_MAX, "/var/mail/%s/%s", domain, user);
// if ((fd = open(mailbox, O_WRONLY | O_APPEND | O_CREAT, 0600)) < 0)
// {
// abort("Cannot open user mailbox \"%s\" for appending.\n", mailbox);
// }
//
// /*
// * OK, copy stdin until exhausted.
// */
// while ((nbytes = read(STDIN_FILENO, buffer, BUFSIZ)) > 0)
// {
// if (write(fd, buffer, nbytes) != nbytes)
// {
// abort("Error writing mailbox \"%s\".\n", mailbox);
// }
// }
//
// close(fd);
// return 0;
Shouldn't you lock the file ? O_APPEND is only good for atomic
writes, IIRC.
Jonny
--
Joao Carlos Mendes Luis M.Sc. Student
jonny@jonny.eng.br Universidade Federal do Rio de Janeiro
"There are two major products that come out of Berkeley: LSD and Unix.
We don't believe this to be a coincidence." -- Jeremy S. Anderson
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