X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fprocd.git;a=blobdiff_plain;f=jail%2Ffs.c;h=f390180699f3d91fb53e01d594144ef9404ff440;hp=714fa879a042fa73a839fdc5949c235a783183fd;hb=def4c1b9766cf04cfdf42ada9e27fff228d0dc19;hpb=15ff8b1d09187c11b1331f811cc75b0dd2076827

diff --git a/jail/fs.c b/jail/fs.c
index 714fa87..f390180 100644
--- a/jail/fs.c
+++ b/jail/fs.c
@@ -79,6 +79,29 @@ void mount_list_init(void) {
 	avl_init(&mounts, avl_strcmp, false, NULL);
 }
 
+static int add_script_interp(const char *path, const char *map, int size)
+{
+	int start = 2;
+	while (start < size && map[start] != '/') {
+		start++;
+	}
+	if (start >= size) {
+		ERROR("bad script interp (%s)", path);
+		return -1;
+	}
+	int stop = start + 1;
+	while (stop < size && map[stop] > 0x20 && map[stop] <= 0x7e) {
+		stop++;
+	}
+	if (stop >= size || (stop-start) > PATH_MAX) {
+		ERROR("bad script interp (%s)", path);
+		return -1;
+	}
+	char buf[PATH_MAX];
+	strncpy(buf, map+start, stop-start);
+	return add_path_and_deps(buf, 1, -1, 0);
+}
+
 int add_path_and_deps(const char *path, int readonly, int error, int lib)
 {
 	assert(path != NULL);
@@ -93,7 +116,7 @@ int add_path_and_deps(const char *path, int readonly, int error, int lib)
 	if (path[0] == '/') {
 		if (avl_find(&mounts, path))
 			return 0;
-		fd = open(path, O_RDONLY);
+		fd = open(path, O_RDONLY|O_CLOEXEC);
 		if (fd == -1)
 			return error;
 		add_mount(path, readonly, error);
@@ -135,6 +158,11 @@ int add_path_and_deps(const char *path, int readonly, int error, int lib)
 		goto out;
 	}
 
+	if (map[0] == '#' && map[1] == '!') {
+		ret = add_script_interp(path, map, s.st_size);
+		goto out;
+	}
+
 	if (map[0] == ELFMAG0 && map[1] == ELFMAG1 && map[2] == ELFMAG2 && map[3] == ELFMAG3) {
 		ret = elf_load_deps(path, map);
 		goto out;