[libvirt] [PATCH] virFileIsSharedFSType: Copy mnt_dir when browsing mount table

virFileIsSharedFSType doesn't fix f_type when "fuse.glusterfs" is not the last row of mount table. For example, it doesn't works on the mount table like following: 10.XX.XX.XX:/gv0 /mnt fuse.glusterfs rw 0 0 root@XX.XX.XX:/tmp/mkdir /tmp/br0 fuse.sshfs rw 0 0 Copy mnt_dir of struct mntent in case its mnt_dir is changed by getmntent_r in the loop later. Signed-off-by: Han Han <hhan(a)redhat.com&gt; --- src/util/virfile.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/src/util/virfile.c b/src/util/virfile.c index 2a7e87102a..c503462633 100644 --- a/src/util/virfile.c +++ b/src/util/virfile.c @@ -3469,7 +3469,7 @@ virFileIsSharedFixFUSE(const char *path, long *f_type) { char *dirpath = NULL; - const char **mounts = NULL; + char **mounts = NULL; size_t nmounts = 0; char *p; FILE *f = NULL; @@ -3491,8 +3491,12 @@ virFileIsSharedFixFUSE(const char *path, if (STRNEQ("fuse.glusterfs", mb.mnt_type)) continue; - if (VIR_APPEND_ELEMENT_COPY(mounts, nmounts, mb.mnt_dir) < 0) + char *mnt_dir; + if (VIR_STRDUP(mnt_dir, mb.mnt_dir) < 0 || + VIR_APPEND_ELEMENT_COPY(mounts, nmounts, mnt_dir) < 0) { + VIR_FREE(mnt_dir); goto cleanup; + } } /* Add NULL sentinel so that this is a virStringList */ @@ -3512,7 +3516,7 @@ virFileIsSharedFixFUSE(const char *path, else *p = '\0'; - if (virStringListHasString(mounts, dirpath)) { + if (virStringListHasString((const char **)mounts, dirpath)) { VIR_DEBUG("Found gluster FUSE mountpoint=%s for path=%s. " "Fixing shared FS type", dirpath, path); *f_type = GFS2_MAGIC; @@ -3523,7 +3527,7 @@ virFileIsSharedFixFUSE(const char *path, ret = 0; cleanup: endmntent(f); - VIR_FREE(mounts); + virStringListFree(mounts); VIR_FREE(dirpath); return ret; } -- 2.19.1