From: Sami Kerola <kerolasa@iki.fi>
To: util-linux@vger.kernel.org
Cc: kerolasa@iki.fi
Subject: [PATCH 01/19] last: stop using MAXHOSTNAMELEN
Date: Sun, 14 Oct 2012 21:20:52 +0100 [thread overview]
Message-ID: <1350246070-10544-2-git-send-email-kerolasa@iki.fi> (raw)
In-Reply-To: <1350246070-10544-1-git-send-email-kerolasa@iki.fi>
Use the sysconf(_SC_HOST_NAME_MAX) to determine maximum length of a
hostname.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
---
login-utils/last.c | 19 ++++++++-----------
1 file changed, 8 insertions(+), 11 deletions(-)
diff --git a/login-utils/last.c b/login-utils/last.c
index 77a890a..a3d5a85 100644
--- a/login-utils/last.c
+++ b/login-utils/last.c
@@ -418,22 +418,19 @@ addtty(char *ttyname) {
*/
static void
hostconv(char *arg) {
- static int first = 1;
- static char *hostdot,
- name[MAXHOSTNAMELEN];
- char *argdot;
+ static char *hostdot;
+ static char *argdot;
+ static char *name;
if (!(argdot = strchr(arg, '.')))
return;
- if (first) {
- first = 0;
- if (gethostname(name, sizeof(name)))
- err(EXIT_FAILURE, _("gethostname failed"));
-
- hostdot = strchr(name, '.');
- }
+ name = xmalloc(sizeof(char) * (sysconf(_SC_HOST_NAME_MAX) + 1));
+ if (gethostname(name, sysconf(_SC_HOST_NAME_MAX)))
+ err(EXIT_FAILURE, _("gethostname failed"));
+ hostdot = strchr(name, '.');
if (hostdot && !strcmp(hostdot, argdot))
*argdot = '\0';
+ free(name);
}
/*
--
1.7.12.2
next prev parent reply other threads:[~2012-10-14 20:21 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-14 20:20 [PATCH 00/19] compliancy fixes Sami Kerola
2012-10-14 20:20 ` Sami Kerola [this message]
2012-10-15 1:46 ` [PATCH 01/19] last: stop using MAXHOSTNAMELEN Mike Frysinger
2012-10-14 20:20 ` [PATCH 02/19] login: " Sami Kerola
2012-10-14 20:20 ` [PATCH 03/19] write: " Sami Kerola
2012-10-15 2:12 ` Mike Frysinger
[not found] ` <20121015152558.GK18377@x2.net.home>
2012-10-18 20:06 ` Sami Kerola
2012-10-22 6:01 ` Mike Frysinger
2012-10-22 8:06 ` Karel Zak
2012-10-22 8:09 ` Karel Zak
2012-10-22 20:03 ` Mike Frysinger
2012-10-22 20:22 ` Karel Zak
2012-10-14 20:20 ` [PATCH 04/19] agetty: " Sami Kerola
2012-10-14 20:20 ` [PATCH 05/19] c.h: remove unnecessary MAXHOSTNAMELEN fallback definition Sami Kerola
2012-10-14 20:20 ` [PATCH 06/19] docs: add line breaks to whereis.1 Sami Kerola
2012-10-14 20:20 ` [PATCH 07/19] sd-daemon: fix cppcheck warnings Sami Kerola
2012-10-14 22:10 ` Dave Reisner
2012-10-15 8:32 ` Sami Kerola
2012-10-14 20:20 ` [PATCH 08/19] libmount: replace usleep with nanosleep Sami Kerola
2012-10-15 2:14 ` Mike Frysinger
2012-10-14 20:21 ` [PATCH 09/19] include/all-io: " Sami Kerola
2012-10-14 20:21 ` [PATCH 10/19] hwclock: " Sami Kerola
2012-10-14 20:21 ` [PATCH 11/19] rtcwake: " Sami Kerola
2012-10-14 20:21 ` [PATCH 12/19] agetty: " Sami Kerola
2012-10-14 20:21 ` [PATCH 13/19] tailf: " Sami Kerola
2012-10-14 20:21 ` [PATCH 14/19] include/usleep: remove remaining references to usleep Sami Kerola
2012-10-14 20:21 ` [PATCH 15/19] libmount, eject: replace index() and rindex() with strrch() or strrchr() Sami Kerola
2012-10-15 2:14 ` Mike Frysinger
2012-10-14 20:21 ` [PATCH 16/19] logger: replace gethostbyname() with getaddrinfo() Sami Kerola
2012-10-14 20:21 ` [PATCH 17/19] agetty: " Sami Kerola
2012-10-14 20:21 ` [PATCH 18/19] build-sys: remove gethostbyname() check Sami Kerola
2012-10-14 20:21 ` [PATCH 19/19] fsck.cramfs: replace utime() with utimensat() Sami Kerola
2012-10-15 2:17 ` Mike Frysinger
2012-10-15 8:36 ` Sami Kerola
2012-10-15 17:39 ` Mike Frysinger
2012-10-22 9:07 ` [PATCH 00/19] compliancy fixes Karel Zak
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