[packages/pam] add update dynamic motd patch from debian
glen
glen at pld-linux.org
Thu Oct 3 15:00:54 CEST 2013
commit 08e6ed3ddcbc1f5cc3a93ea4b37e20ecc1125588
Author: Elan Ruusamäe <glen at delfi.ee>
Date: Thu Oct 3 15:56:15 2013 +0300
add update dynamic motd patch from debian
taken from pam_1.1.3-9.diff.gz
update-motd.patch | 183 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 183 insertions(+)
---
diff --git a/update-motd.patch b/update-motd.patch
new file mode 100644
index 0000000..3e89e11
--- /dev/null
+++ b/update-motd.patch
@@ -0,0 +1,183 @@
+Patch for Ubuntu bug #399071
+
+Provide a more dynamic MOTD, based on the short-lived update-motd project.
+
+Authors: Dustin Kirkland <kirkland at canonical.com>
+
+Upstream status: not yet submitted
+
+Index: pam.ubuntu/modules/pam_motd/pam_motd.c
+===================================================================
+--- pam.ubuntu.orig/modules/pam_motd/pam_motd.c
++++ pam.ubuntu/modules/pam_motd/pam_motd.c
+@@ -48,14 +48,39 @@
+
+ static char default_motd[] = DEFAULT_MOTD;
+
++static void display_file(pam_handle_t *pamh, const char *motd_path)
++{
++ int fd;
++ char *mtmp = NULL;
++ while ((fd = open(motd_path, O_RDONLY, 0)) >= 0) {
++ struct stat st;
++ /* fill in message buffer with contents of motd */
++ if ((fstat(fd, &st) < 0) || !st.st_size || st.st_size > 0x10000)
++ break;
++ if (!(mtmp = malloc(st.st_size+1)))
++ break;
++ if (pam_modutil_read(fd, mtmp, st.st_size) != st.st_size)
++ break;
++ if (mtmp[st.st_size-1] == '\n')
++ mtmp[st.st_size-1] = '\0';
++ else
++ mtmp[st.st_size] = '\0';
++ pam_info (pamh, "%s", mtmp);
++ break;
++ }
++ _pam_drop (mtmp);
++ if (fd >= 0)
++ close(fd);
++}
++
+ PAM_EXTERN
+ int pam_sm_open_session(pam_handle_t *pamh, int flags,
+ int argc, const char **argv)
+ {
+ int retval = PAM_IGNORE;
+- int fd;
++ int do_update = 1;
+ const char *motd_path = NULL;
+- char *mtmp = NULL;
++ struct stat st;
+
+ if (flags & PAM_SILENT) {
+ return retval;
+@@ -73,6 +98,9 @@
+ "motd= specification missing argument - ignored");
+ }
+ }
++ else if (!strcmp(*argv,"noupdate")) {
++ do_update = 0;
++ }
+ else
+ pam_syslog(pamh, LOG_ERR, "unknown option: %s", *argv);
+ }
+@@ -80,34 +108,23 @@
+ if (motd_path == NULL)
+ motd_path = default_motd;
+
+- while ((fd = open(motd_path, O_RDONLY, 0)) >= 0) {
+- struct stat st;
+-
+- /* fill in message buffer with contents of motd */
+- if ((fstat(fd, &st) < 0) || !st.st_size || st.st_size > 0x10000)
+- break;
+-
+- if (!(mtmp = malloc(st.st_size+1)))
+- break;
+-
+- if (pam_modutil_read(fd, mtmp, st.st_size) != st.st_size)
+- break;
+-
+- if (mtmp[st.st_size-1] == '\n')
+- mtmp[st.st_size-1] = '\0';
+- else
+- mtmp[st.st_size] = '\0';
+-
+- pam_info (pamh, "%s", mtmp);
+- break;
++ /* Run the update-motd dynamic motd scripts, outputting to /var/run/motd.
++ If /etc/motd -> /var/run/motd, the displayed MOTD will be dynamic.
++ Otherwise, the admin can force a static MOTD by breaking that symlink
++ and publishing into an /etc/motd text file. */
++ if (do_update && (stat("/etc/update-motd.d", &st) == 0)
++ && S_ISDIR(st.st_mode))
++ {
++ mode_t old_mask = umask(0022);
++ if (!system("/usr/bin/env -i PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin run-parts --lsbsysinit /etc/update-motd.d > /var/run/motd.new"))
++ rename("/var/run/motd.new", "/var/run/motd");
++ umask(old_mask);
+ }
+
+- _pam_drop (mtmp);
+-
+- if (fd >= 0)
+- close(fd);
++ /* Display the updated motd */
++ display_file(pamh, motd_path);
+
+- return retval;
++ return retval;
+ }
+
+
+Index: pam.ubuntu/modules/pam_motd/pam_motd.8.xml
+===================================================================
+--- pam.ubuntu.orig/modules/pam_motd/pam_motd.8.xml
++++ pam.ubuntu/modules/pam_motd/pam_motd.8.xml
+@@ -52,6 +52,17 @@
+ </para>
+ </listitem>
+ </varlistentry>
++ <varlistentry>
++ <term>
++ <option>noupdate</option>
++ </term>
++ <listitem>
++ <para>
++ Don't run the scripts in <filename>/etc/update-motd.d</filename>
++ to refresh the motd file.
++ </para>
++ </listitem>
++ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+Index: pam.ubuntu/modules/pam_motd/pam_motd.8
+===================================================================
+--- pam.ubuntu.orig/modules/pam_motd/pam_motd.8
++++ pam.ubuntu/modules/pam_motd/pam_motd.8
+@@ -2,12 +2,12 @@
+ .\" Title: pam_motd
+ .\" Author: [see the "AUTHOR" section]
+ .\" Generator: DocBook XSL Stylesheets v1.75.2 <http://docbook.sf.net/>
+-.\" Date: 06/04/2011
++.\" Date: 10/30/2011
+ .\" Manual: Linux-PAM Manual
+ .\" Source: Linux-PAM Manual
+ .\" Language: English
+ .\"
+-.TH "PAM_MOTD" "8" "06/04/2011" "Linux-PAM Manual" "Linux\-PAM Manual"
++.TH "PAM_MOTD" "8" "10/30/2011" "Linux-PAM Manual" "Linux\-PAM Manual"
+ .\" -----------------------------------------------------------------
+ .\" * Define some portability stuff
+ .\" -----------------------------------------------------------------
+@@ -45,6 +45,13 @@
+ /path/filename
+ file is displayed as message of the day\&.
+ .RE
++.PP
++\fBnoupdate\fR
++.RS 4
++Don\*(Aqt run the scripts in
++/etc/update\-motd\&.d
++to refresh the motd file\&.
++.RE
+ .SH "MODULE TYPES PROVIDED"
+ .PP
+ Only the
+Index: pam.ubuntu/modules/pam_motd/README
+===================================================================
+--- pam.ubuntu.orig/modules/pam_motd/README
++++ pam.ubuntu/modules/pam_motd/README
+@@ -14,6 +14,10 @@
+
+ The /path/filename file is displayed as message of the day.
+
++noupdate
++
++ Don't run the scripts in /etc/update-motd.d to refresh the motd file.
++
+ EXAMPLES
+
+ The suggested usage for /etc/pam.d/login is:
================================================================
---- gitweb:
http://git.pld-linux.org/gitweb.cgi/packages/pam.git/commitdiff/3c20be82f7c9cffae8b4c8d5b635d3ae26e0e909
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