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authorjutteau2007-05-11 18:10:19 +0000
committerjutteau2007-05-11 18:10:19 +0000
commit5e1a84ab74d5e97582427f016f291a8c11e66f99 (patch)
treeddae3f36a21e7fa7c97145f4a49edcfe50063aa3 /i/pc104/initrd/conf/busybox/libbb/find_mount_point.c
parentb95709754c870cbb793266ce8e605a81d01a4f75 (diff)
Completion du script de mise à jour de la pc-104 :
* Ajout des sources de busybox dans ./conf/busybox/ * Ajout d'un fichier réclamé par les script dans ./conf/busybox.links
Diffstat (limited to 'i/pc104/initrd/conf/busybox/libbb/find_mount_point.c')
-rw-r--r--i/pc104/initrd/conf/busybox/libbb/find_mount_point.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/i/pc104/initrd/conf/busybox/libbb/find_mount_point.c b/i/pc104/initrd/conf/busybox/libbb/find_mount_point.c
new file mode 100644
index 0000000..cb00b98
--- /dev/null
+++ b/i/pc104/initrd/conf/busybox/libbb/find_mount_point.c
@@ -0,0 +1,53 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
+#include "libbb.h"
+#include <mntent.h>
+
+/*
+ * Given a block device, find the mount table entry if that block device
+ * is mounted.
+ *
+ * Given any other file (or directory), find the mount table entry for its
+ * filesystem.
+ */
+struct mntent *find_mount_point(const char *name, const char *table)
+{
+ struct stat s;
+ dev_t mountDevice;
+ FILE *mountTable;
+ struct mntent *mountEntry;
+
+ if (stat(name, &s) != 0)
+ return 0;
+
+ if ((s.st_mode & S_IFMT) == S_IFBLK)
+ mountDevice = s.st_rdev;
+ else
+ mountDevice = s.st_dev;
+
+
+ mountTable = setmntent(table ? table : bb_path_mtab_file, "r");
+ if (!mountTable)
+ return 0;
+
+ while ((mountEntry = getmntent(mountTable)) != 0) {
+ if (strcmp(name, mountEntry->mnt_dir) == 0
+ || strcmp(name, mountEntry->mnt_fsname) == 0
+ ) { /* String match. */
+ break;
+ }
+ if (stat(mountEntry->mnt_fsname, &s) == 0 && s.st_rdev == mountDevice) /* Match the device. */
+ break;
+ if (stat(mountEntry->mnt_dir, &s) == 0 && s.st_dev == mountDevice) /* Match the directory's mount point. */
+ break;
+ }
+ endmntent(mountTable);
+ return mountEntry;
+}