aboutsummaryrefslogtreecommitdiff
path: root/util-linux/switch_root.c
diff options
context:
space:
mode:
authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2007-04-12 00:32:05 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2007-04-12 00:32:05 +0000
commit51742f4bb0c57a4d5063ece9437a2f34a42e52c8 (patch)
tree7a912fc65ff43bdb09078d75bfc02ad8f5380b47 /util-linux/switch_root.c
parent50f7f446ecaadef6895a4ee601567e0b68330637 (diff)
downloadbusybox-51742f4bb0c57a4d5063ece9437a2f34a42e52c8.tar.gz
busybox-51742f4bb0c57a4d5063ece9437a2f34a42e52c8.tar.bz2
style fixes. No code changes
Diffstat (limited to 'util-linux/switch_root.c')
-rw-r--r--util-linux/switch_root.c22
1 files changed, 11 insertions, 11 deletions
diff --git a/util-linux/switch_root.c b/util-linux/switch_root.c
index 43377e16e..6dba9f05f 100644
--- a/util-linux/switch_root.c
+++ b/util-linux/switch_root.c
@@ -24,7 +24,7 @@
#define MS_MOVE 8192
#endif
-dev_t rootdev;
+static dev_t rootdev;
// Recursively delete contents of rootfs.
@@ -39,12 +39,13 @@ static void delete_contents(const char *directory)
// Recursively delete the contents of directories.
if (S_ISDIR(st.st_mode)) {
- if((dir = opendir(directory))) {
+ dir = opendir(directory);
+ if (dir) {
while ((d = readdir(dir))) {
- char *newdir=d->d_name;
+ char *newdir = d->d_name;
// Skip . and ..
- if(*newdir=='.' && (!newdir[1] || (newdir[1]=='.' && !newdir[2])))
+ if (*newdir=='.' && (!newdir[1] || (newdir[1]=='.' && !newdir[2])))
continue;
// Recurse to delete contents
@@ -66,7 +67,7 @@ static void delete_contents(const char *directory)
int switch_root_main(int argc, char **argv);
int switch_root_main(int argc, char **argv)
{
- char *newroot, *console=NULL;
+ char *newroot, *console = NULL;
struct stat st1, st2;
struct statfs stfs;
@@ -77,18 +78,18 @@ int switch_root_main(int argc, char **argv)
// Change to new root directory and verify it's a different fs.
- newroot=argv[optind++];
+ newroot = argv[optind++];
if (chdir(newroot) || lstat(".", &st1) || lstat("/", &st2) ||
st1.st_dev == st2.st_dev)
{
bb_error_msg_and_die("bad newroot %s", newroot);
}
- rootdev=st2.st_dev;
+ rootdev = st2.st_dev;
// Additional sanity checks: we're about to rm -rf /, so be REALLY SURE
// we mean it. (I could make this a CONFIG option, but I would get email
- // from all the people who WILL eat their filesystemss.)
+ // from all the people who WILL eat their filesystems.)
if (lstat("/init", &st1) || !S_ISREG(st1.st_mode) || statfs("/", &stfs) ||
(stfs.f_type != RAMFS_MAGIC && stfs.f_type != TMPFS_MAGIC) ||
@@ -105,14 +106,13 @@ int switch_root_main(int argc, char **argv)
// recalculate "." and ".." links.
if (mount(".", "/", NULL, MS_MOVE, NULL) || chroot(".") || chdir("/"))
- bb_error_msg_and_die("moving root");
+ bb_error_msg_and_die("error moving root");
// If a new console specified, redirect stdin/stdout/stderr to that.
if (console) {
close(0);
- if (open(console, O_RDWR) < 0)
- bb_error_msg_and_die("bad console '%s'", console);
+ xopen(console, O_RDWR);
dup2(0, 1);
dup2(0, 2);
}