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authorCsaba Henk <csaba@redhat.com>2012-05-15 13:41:57 +0530
committerAnand Avati <avati@redhat.com>2012-05-21 13:47:41 -0700
commit6012dfe6b9c4d69914078cc0b716bf11aac5e957 (patch)
treeb98aad92cc2fdaca12d72c5d05f1250ce6a6743a /contrib/fuse-util
parent439d0426dd60ef6c1f4af13fcbbe73f1d206acc6 (diff)
fuse: reorganize mounting code
Macro-driven conditional compilation was a chaos. New scheme is: contrib/fuse-lib/mount-common.c: libfuse routines used both by glusterfs and fusermount contrib/fuse-lib/mount.c: libfuse-derived but customized mounting code for glusterfs contrib/fuse-util/mount_util.c: libfuse routines used only by fusermount Change-Id: I3e0ba7f74e36556b78244cd7676eb4d379939602 BUG: 762389 Signed-off-by: Csaba Henk <csaba@redhat.com> Reviewed-on: http://review.gluster.com/3342 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
Diffstat (limited to 'contrib/fuse-util')
-rw-r--r--contrib/fuse-util/Makefile.am6
-rw-r--r--contrib/fuse-util/mount_util.c64
-rw-r--r--contrib/fuse-util/mount_util.h18
3 files changed, 67 insertions, 21 deletions
diff --git a/contrib/fuse-util/Makefile.am b/contrib/fuse-util/Makefile.am
index a72e3832..6e9b31c7 100644
--- a/contrib/fuse-util/Makefile.am
+++ b/contrib/fuse-util/Makefile.am
@@ -1,9 +1,9 @@
bin_PROGRAMS = fusermount-glusterfs
-fusermount_glusterfs_SOURCES = fusermount.c $(CONTRIBDIR)/fuse-lib/mount.c
-noinst_HEADERS = mount_util.h
+fusermount_glusterfs_SOURCES = fusermount.c mount_util.c $(CONTRIBDIR)/fuse-lib/mount-common.c
+noinst_HEADERS = $(CONTRIBDIR)/fuse-include/mount_util.h
-AM_CFLAGS = -Wall -D_FILE_OFFSET_BITS=64 -DFUSE_UTIL $(GF_CFLAGS) -D_GNU_SOURCE
+AM_CFLAGS = -Wall -D_FILE_OFFSET_BITS=64 -DFUSE_UTIL $(GF_CFLAGS) -D_GNU_SOURCE -I$(CONTRIBDIR)/fuse-include
install-exec-hook:
-chown root $(DESTDIR)$(bindir)/fusermount-glusterfs
diff --git a/contrib/fuse-util/mount_util.c b/contrib/fuse-util/mount_util.c
new file mode 100644
index 00000000..911b8444
--- /dev/null
+++ b/contrib/fuse-util/mount_util.c
@@ -0,0 +1,64 @@
+/*
+ FUSE: Filesystem in Userspace
+ Copyright (C) 2001-2007 Miklos Szeredi <miklos@szeredi.hu>
+
+ This program can be distributed under the terms of the GNU LGPLv2.
+ See the file COPYING.LIB.
+*/
+
+#include <dirent.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+int fuse_mnt_check_empty(const char *progname, const char *mnt,
+ mode_t rootmode, off_t rootsize)
+{
+ int isempty = 1;
+
+ if (S_ISDIR(rootmode)) {
+ struct dirent *ent;
+ DIR *dp = opendir(mnt);
+ if (dp == NULL) {
+ fprintf(stderr,
+ "%s: failed to open mountpoint for reading: %s\n",
+ progname, strerror(errno));
+ return -1;
+ }
+ while ((ent = readdir(dp)) != NULL) {
+ if (strcmp(ent->d_name, ".") != 0 &&
+ strcmp(ent->d_name, "..") != 0) {
+ isempty = 0;
+ break;
+ }
+ }
+ closedir(dp);
+ } else if (rootsize)
+ isempty = 0;
+
+ if (!isempty) {
+ fprintf(stderr, "%s: mountpoint is not empty\n", progname);
+ fprintf(stderr, "%s: if you are sure this is safe, use the 'nonempty' mount option\n", progname);
+ return -1;
+ }
+ return 0;
+}
+
+int fuse_mnt_check_fuseblk(void)
+{
+ char buf[256];
+ FILE *f = fopen("/proc/filesystems", "r");
+ if (!f)
+ return 1;
+
+ while (fgets(buf, sizeof(buf), f))
+ if (strstr(buf, "fuseblk\n")) {
+ fclose(f);
+ return 1;
+ }
+
+ fclose(f);
+ return 0;
+}
diff --git a/contrib/fuse-util/mount_util.h b/contrib/fuse-util/mount_util.h
deleted file mode 100644
index f392f99f..00000000
--- a/contrib/fuse-util/mount_util.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- FUSE: Filesystem in Userspace
- Copyright (C) 2001-2007 Miklos Szeredi <miklos@szeredi.hu>
-
- This program can be distributed under the terms of the GNU LGPLv2.
- See the file COPYING.LIB.
-*/
-
-#include <sys/types.h>
-
-int fuse_mnt_add_mount(const char *progname, const char *fsname,
- const char *mnt, const char *type, const char *opts);
-int fuse_mnt_umount(const char *progname, const char *abs_mnt,
- const char *rel_mnt, int lazy);
-char *fuse_mnt_resolve_path(const char *progname, const char *orig);
-int fuse_mnt_check_empty(const char *progname, const char *mnt,
- mode_t rootmode, off_t rootsize);
-int fuse_mnt_check_fuseblk(void);