From: "Slava Semushin" <slava.semushin@gmail.com>
To: "ALT Devel discussion list" <devel@lists.altlinux.org>
Subject: [devel] Нужно ли вызывать endpwent() после использования getpwuid() ?
Date: Mon, 26 Feb 2007 16:32:03 +0300
Message-ID: <75e139a00702260532j7c90aec2gadf659ea0e5c1de3@mail.gmail.com> (raw)
Здравствуйте!
Листал тут на работе книжку от O'Reilly "Secure Programming Book for C
and C++" и увидел такой пример:
%%
#include <sys/types.h>
#include <stdio.h>
#include <unistd.h>
#include <pwd.h>
int main(int argc, char *argv[]) {
uid_t uid;
struct passwd *pwd;
uid = getuid();
printf("User's UID is %d.\n", (int)uid);
if ( ! (pwd = getpwuid(uid))) {
printf("Unable to get user's password file record!\n");
endpwent();
return 1;
}
printf("User's home directory is %s\n", pwd->pw_dir);
endpwent();
return 0;
}
%%
Собственно, привлёк внимание факт вызова endpwent(). Почитал ман к
Линуксу, к Нетке, ещё каких-то в интернете и не очень понял,
действительно ли нужно после вызова getpwuid() вызывать endpwent().
Пожалуйста, разъясните этот момент, ведь если я правильно понял, то
невызов endpwent() чреват утечкой файлового дескриптора.
Заранее спасибо!
--
+ Slava Semushin | slava.semushin @ gmail.com
+ ALT Linux Team | php-coder @ altlinux.ru
next reply other threads:[~2007-02-26 13:32 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-26 13:32 Slava Semushin [this message]
2007-02-26 13:44 ` Mikhail Gusarov
2007-02-26 13:49 ` Damir Shayhutdinov
2007-02-26 13:52 ` [devel] [SUMMARY][OFF]Re: " Slava Semushin
2007-02-26 13:56 ` [devel] " Dmitry V. Levin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=75e139a00702260532j7c90aec2gadf659ea0e5c1de3@mail.gmail.com \
--to=slava.semushin@gmail.com \
--cc=devel@lists.altlinux.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
ALT Linux Team development discussions
This inbox may be cloned and mirrored by anyone:
git clone --mirror http://lore.altlinux.org/devel/0 devel/git/0.git
# If you have public-inbox 1.1+ installed, you may
# initialize and index your mirror using the following commands:
public-inbox-init -V2 devel devel/ http://lore.altlinux.org/devel \
devel@altlinux.org devel@altlinux.ru devel@lists.altlinux.org devel@lists.altlinux.ru devel@linux.iplabs.ru mandrake-russian@linuxteam.iplabs.ru sisyphus@linuxteam.iplabs.ru
public-inbox-index devel
Example config snippet for mirrors.
Newsgroup available over NNTP:
nntp://lore.altlinux.org/org.altlinux.lists.devel
AGPL code for this site: git clone https://public-inbox.org/public-inbox.git