forked from pool/systemd
ccb7bd2935
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/systemd?expand=0&rev=217
103 lines
3.5 KiB
Diff
103 lines
3.5 KiB
Diff
From: Ludwig Nussel <ludwig.nussel@suse.de>
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Date: Fri, 20 May 2011 15:38:46 +0200
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Subject: optionally warn if nss-myhostname is called
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---
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configure.ac | 11 +++++++++++
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src/nss-myhostname/nss-myhostname.c | 32 ++++++++++++++++++++++++++++++++
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2 files changed, 43 insertions(+)
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--- systemd-206_git201308300826.orig/configure.ac
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+++ systemd-206_git201308300826/configure.ac
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@@ -817,6 +817,17 @@ if test "x$enable_myhostname" != "xno";
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fi
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AM_CONDITIONAL(HAVE_MYHOSTNAME, [test "$have_myhostname" = "yes"])
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+if test "x$have_myhostname" != "xno"; then
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+ AC_MSG_CHECKING([log warning messages for nss-myhostname])
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+ AC_ARG_WITH(nss-my-hostname-warning, AS_HELP_STRING([--with-nss-my-hostname-warning], [log warning to syslog when nss-myhostname is called (default=no)]),[],[with_nss_my_hostname_warning=no])
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+ AC_MSG_RESULT([$with_nss_my_hostname_warning])
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+
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+ if test x$with_nss_my_hostname_warning != xno; then
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+ AC_CHECK_HEADERS([syslog.h])
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+ AC_DEFINE([LOG_NSS_MY_HOSTNAME_WARNING],[1],[whether to log warning message for nss-myhostname])
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+ fi
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+fi
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+
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# ------------------------------------------------------------------------------
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AC_ARG_WITH(firmware-path,
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AS_HELP_STRING([--with-firmware-path=DIR[[[:DIR[...]]]]],
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--- systemd-206_git201308300826.orig/src/nss-myhostname/nss-myhostname.c
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+++ systemd-206_git201308300826/src/nss-myhostname/nss-myhostname.c
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@@ -29,6 +29,9 @@
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#include <net/if.h>
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#include <stdlib.h>
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#include <arpa/inet.h>
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+#ifdef LOG_NSS_MY_HOSTNAME_WARNING
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+#include <syslog.h>
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+#endif
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#include "ifconf.h"
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#include "macro.h"
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@@ -47,6 +50,10 @@
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#define LOCALADDRESS_IPV6 &in6addr_loopback
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#define LOOPBACK_INTERFACE "lo"
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+#ifdef LOG_NSS_MY_HOSTNAME_WARNING
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+static void warn(const char* hn);
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+#endif
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+
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enum nss_status _nss_myhostname_gethostbyname4_r(
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const char *name,
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struct gaih_addrtuple **pat,
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@@ -129,6 +136,9 @@ enum nss_status _nss_myhostname_gethostb
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return NSS_STATUS_NOTFOUND;
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}
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+#ifdef LOG_NSS_MY_HOSTNAME_WARNING
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+ warn(hn);
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+#endif
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/* If this fails, n_addresses is 0. Which is fine */
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ifconf_acquire_addresses(&addresses, &n_addresses);
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@@ -382,6 +392,9 @@ enum nss_status _nss_myhostname_gethostb
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local_address_ipv4 = LOCALADDRESS_IPV4;
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}
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+#ifdef LOG_NSS_MY_HOSTNAME_WARNING
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+ warn(hn);
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+#endif
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return fill_in_hostent(
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canonical, additional,
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af,
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@@ -509,6 +522,9 @@ found:
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canonical = hn;
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}
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+#ifdef LOG_NSS_MY_HOSTNAME_WARNING
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+ warn(hn);
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+#endif
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return fill_in_hostent(
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canonical, additional,
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af,
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@@ -537,3 +553,19 @@ enum nss_status _nss_myhostname_gethostb
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errnop, h_errnop,
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NULL);
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}
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+
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+#ifdef LOG_NSS_MY_HOSTNAME_WARNING
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+static void warn(const char* hn) {
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+ if (strstr(program_invocation_short_name, "nscd")) {
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+ syslog(LOG_WARNING,
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+ "Some application tried to resolve hostname \"%s\" which is not in DNS. Stop nscd to find out which one.\n",
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+ hn);
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+ } else {
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+ syslog(LOG_WARNING,
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+ "%s(%u) tried to resolve hostname \"%s\" which is not in DNS. This might be the reason for the delays you experience.\n",
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+ program_invocation_short_name,
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+ getpid(),
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+ hn);
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+ }
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+}
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+#endif
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