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authorLukas Slebodnik <lslebodn@redhat.com>2013-03-08 14:26:42 +0100
committerSimo Sorce <simo@redhat.com>2013-03-13 14:41:33 -0400
commit22d381367c27910fe82f476a76b9f4ede555e35a (patch)
tree4c9c2d12bae688e4f94a9864f3069018bf171ca1 /src/util
parent8359bf07a2e6c0181251ce8d5d9160dc57546c55 (diff)
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Reuse sss_open_cloexec at other places in code.
Functions open_cloexec and openat_cloexec were renamed with prefix "sss_" and moved to separete file. Replacing duplicated code of function sss_open_cloexec everywhere in the source code. https://fedorahosted.org/sssd/ticket/1794
Diffstat (limited to 'src/util')
-rw-r--r--src/util/io.c90
-rw-r--r--src/util/util.h3
2 files changed, 93 insertions, 0 deletions
diff --git a/src/util/io.c b/src/util/io.c
new file mode 100644
index 00000000..e07a18c5
--- /dev/null
+++ b/src/util/io.c
@@ -0,0 +1,90 @@
+/*
+ SSSD
+
+ compact.c
+
+ Authors:
+ Lukas Slebodnik <lslebodn@redhat.com>
+
+ Copyright (C) 2012 Red Hat
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <unistd.h>
+#include <fcntl.h>
+
+#include "util/util.h"
+
+int sss_open_cloexec(const char *pathname, int flags, int *ret)
+{
+ int fd;
+ int oflags;
+
+ oflags = flags;
+#ifdef O_CLOEXEC
+ oflags |= O_CLOEXEC;
+#endif
+
+ errno = 0;
+ fd = open(pathname, oflags);
+ if (fd == -1) {
+ if (ret) {
+ *ret = errno;
+ }
+ return -1;
+ }
+
+#ifndef O_CLOEXEC
+ int v;
+
+ v = fcntl(fd, F_GETFD, 0);
+ /* we ignore an error, it's not fatal and there is nothing we
+ * can do about it anyways */
+ (void)fcntl(fd, F_SETFD, v | FD_CLOEXEC);
+#endif
+
+ return fd;
+}
+
+int sss_openat_cloexec(int dir_fd, const char *pathname, int flags, int *ret)
+{
+ int fd;
+ int oflags;
+
+ oflags = flags;
+#ifdef O_CLOEXEC
+ oflags |= O_CLOEXEC;
+#endif
+
+ errno = 0;
+ fd = openat(dir_fd, pathname, oflags);
+ if (fd == -1) {
+ if (ret) {
+ *ret = errno;
+ }
+ return -1;
+ }
+
+#ifndef O_CLOEXEC
+ int v;
+
+ v = fcntl(fd, F_GETFD, 0);
+ /* we ignore an error, it's not fatal and there is nothing we
+ * can do about it anyways */
+ (void)fcntl(fd, F_SETFD, v | FD_CLOEXEC);
+#endif
+
+ return fd;
+}
diff --git a/src/util/util.h b/src/util/util.h
index 8afb3bc9..d5ff9bb0 100644
--- a/src/util/util.h
+++ b/src/util/util.h
@@ -584,6 +584,9 @@ errno_t sssd_domain_init(TALLOC_CTX *mem_ctx,
/* from util_lock.c */
errno_t sss_br_lock_file(int fd, size_t start, size_t len,
int num_tries, useconds_t wait);
+/* from io.c */
+int sss_open_cloexec(const char *pathname, int flags, int *ret);
+int sss_openat_cloexec(int dir_fd, const char *pathname, int flags, int *ret);
/* Endianness-compatibility for systems running older versions of glibc */