krb5/Create-KDC-and-kadmind-log-files-with-mode-0640.patch

66 lines
2.8 KiB
Diff

From 6b126bfc40ba416746e4d30edb0b6b72c21c8b10 Mon Sep 17 00:00:00 2001
From: Robbie Harwood <rharwood@redhat.com>
Date: Tue, 23 Aug 2016 16:58:44 -0400
Subject: [PATCH] Create KDC and kadmind log files with mode 0640
In krb5_klog_init(), use open() and fdopen() to open log files so that
we can specify a mode. Specify a mode which doesn't include the
group-write, other-read, or other-write bits even if the process umask
allows them.
[ghudson@mit.edu: wrote commit message, de-indented post-open setup
code]
[rharwood@redhat.com: backport not clean due to SELinux patching]
ticket: 8344 (new)
---
src/lib/kadm5/logger.c | 21 ++++++++++++---------
1 file changed, 12 insertions(+), 9 deletions(-)
diff --git a/src/lib/kadm5/logger.c b/src/lib/kadm5/logger.c
index 64f9641..0517efe 100644
--- a/src/lib/kadm5/logger.c
+++ b/src/lib/kadm5/logger.c
@@ -354,7 +354,7 @@ krb5_klog_init(krb5_context kcontext, char *ename, char *whoami, krb5_boolean do
const char *logging_profent[3];
const char *logging_defent[3];
char **logging_specs;
- int i, ngood;
+ int i, ngood, fd, append;
char *cp, *cp2;
char savec = '\0';
int error;
@@ -422,18 +422,21 @@ krb5_klog_init(krb5_context kcontext, char *ename, char *whoami, krb5_boolean do
/*
* Check for append/overwrite, then open the file.
*/
- if (cp[4] == ':' || cp[4] == '=') {
- f = WRITABLEFOPEN(&cp[5], (cp[4] == ':') ? "a" : "w");
- if (f) {
- set_cloexec_file(f);
- log_control.log_entries[i].lfu_filep = f;
- log_control.log_entries[i].log_type = K_LOG_FILE;
- log_control.log_entries[i].lfu_fname = &cp[5];
- } else {
+ append = (cp[4] == ':') ? O_APPEND : 0;
+ if (append || cp[4] == '=') {
+ fd = THREEPARAMOPEN(&cp[5], O_CREAT | O_WRONLY | append,
+ S_IRUSR | S_IWUSR | S_IRGRP);
+ if (fd != -1)
+ f = fdopen(fd, append ? "a" : "w");
+ if (fd == -1 || f == NULL) {
fprintf(stderr,"Couldn't open log file %s: %s\n",
&cp[5], error_message(errno));
continue;
}
+ set_cloexec_file(f);
+ log_control.log_entries[i].lfu_filep = f;
+ log_control.log_entries[i].log_type = K_LOG_FILE;
+ log_control.log_entries[i].lfu_fname = &cp[5];
}
}
#ifdef HAVE_SYSLOG
--
2.9.3