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Use getmntent_r() for thread-safety

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Signed-off-by: Andrey Mazo <mazo@telum.ru>
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
This commit is contained in:
Andrey Mazo 2013-12-24 14:44:54 +04:00 committed by Serge Hallyn
parent dd1d77f91b
commit aaf901be6b
1 changed files with 10 additions and 9 deletions
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19
src/lxc/conf.c
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@ -1859,7 +1859,7 @@ static int mount_entry(const char *fsname, const char *target,
return 0;
}
static inline int mount_entry_on_systemfs(struct mntent *mntent)
static inline int mount_entry_on_systemfs(const struct mntent *mntent)
{
unsigned long mntflags;
char *mntdata;
@ -1904,7 +1904,7 @@ static inline int mount_entry_on_systemfs(struct mntent *mntent)
return ret;
}
static int mount_entry_on_absolute_rootfs(struct mntent *mntent,
static int mount_entry_on_absolute_rootfs(const struct mntent *mntent,
const struct lxc_rootfs *rootfs,
const char *lxc_name)
{
@ -1990,7 +1990,7 @@ out:
return ret;
}
static int mount_entry_on_relative_rootfs(struct mntent *mntent,
static int mount_entry_on_relative_rootfs(const struct mntent *mntent,
const char *rootfs)
{
char path[MAXPATHLEN];
@ -2047,26 +2047,27 @@ static int mount_entry_on_relative_rootfs(struct mntent *mntent,
static int mount_file_entries(const struct lxc_rootfs *rootfs, FILE *file,
const char *lxc_name)
{
struct mntent *mntent;
struct mntent mntent;
char buf[4096];
int ret = -1;
while ((mntent = getmntent(file))) {
while (getmntent_r(file, &mntent, buf, sizeof(buf))) {
if (!rootfs->path) {
if (mount_entry_on_systemfs(mntent))
if (mount_entry_on_systemfs(&mntent))
goto out;
continue;
}
/* We have a separate root, mounts are relative to it */
if (mntent->mnt_dir[0] != '/') {
if (mount_entry_on_relative_rootfs(mntent,
if (mntent.mnt_dir[0] != '/') {
if (mount_entry_on_relative_rootfs(&mntent,
rootfs->mount))
goto out;
continue;
}
if (mount_entry_on_absolute_rootfs(mntent, rootfs, lxc_name))
if (mount_entry_on_absolute_rootfs(&mntent, rootfs, lxc_name))
goto out;
}