Signed-off-by: Etienne CHAMPETIER <champetier.etie...@gmail.com>
---
jail/jail.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/jail/jail.c b/jail/jail.c
index 97ddaab..541363a 100644
--- a/jail/jail.c
+++ b/jail/jail.c
@@ -35,10 +35,11 @@
#include <libubox/uloop.h>
#define STACK_SIZE (1024 * 1024)
-#define OPT_ARGS "S:C:n:r:w:d:psuloc"
+#define OPT_ARGS "S:C:n:h:r:w:d:psuloc"
static struct {
char *name;
+ char *hostname;
char **jail_argv;
char *seccomp;
char *capabilities;
@@ -216,6 +217,7 @@ static void usage(void)
fprintf(stderr, " -c\t\tset PR_SET_NO_NEW_PRIVS\n");
fprintf(stderr, " -n <name>\tthe name of the jail\n");
fprintf(stderr, "namespace jail options:\n");
+ fprintf(stderr, " -h <hostname>\tchange the hostname of the jail\n");
fprintf(stderr, " -r <file>\treadonly files that should be staged\n");
fprintf(stderr, " -w <file>\twriteable files that should be staged\n");
fprintf(stderr, " -p\t\tjail has /proc\n");
@@ -255,8 +257,8 @@ static int exec_jail(void)
static int spawn_jail(void *_notused)
{
- if (opts.name && sethostname(opts.name, strlen(opts.name))) {
- ERROR("failed to sethostname: %s\n", strerror(errno));
+ if (opts.hostname && sethostname(opts.hostname, strlen(opts.hostname)))
{
+ ERROR("sethostname(%s) failed: %s\n", opts.hostname,
strerror(errno));
}
if (build_jail_fs()) {
@@ -334,6 +336,9 @@ int main(int argc, char **argv)
case 'n':
opts.name = optarg;
break;
+ case 'h':
+ opts.hostname = optarg;
+ break;
case 'r':
opts.namespace = 1;
add_path_and_deps(optarg, 1, 0, 0);
--
1.9.1
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