1 files changed, 122 insertions, 0 deletions
diff --git a/commands/ls.c b/commands/ls.c
new file mode 100644
index 0000000000..7cdbbb790e
--- /dev/null
+++ b/commands/ls.c
@@ -0,0 +1,122 @@
+#include <common.h>
+#include <command.h>
+#include <fs.h>
+#include <linux/stat.h>
+#include <errno.h>
+#include <getopt.h>
+
+static void ls_one(const char *path, struct stat *s)
+{
+	char modestr[11];
+	unsigned long namelen = strlen(path);
+
+	mkmodestr(s->st_mode, modestr);
+	printf("%s %8d %*.*s\n",modestr, s->st_size, namelen, namelen, path);
+}
+
+int ls(const char *path, ulong flags)
+{
+	DIR *dir;
+	struct dirent *d;
+	char tmp[PATH_MAX];
+	struct stat s;
+
+	if (flags & LS_SHOWARG)
+		printf("%s:\n", path);
+
+	if (stat(path, &s)) {
+		perror("stat");
+		return errno;
+	}
+
+	if (!(s.st_mode & S_IFDIR)) {
+		ls_one(path, &s);
+		return 0;
+	}
+
+	dir = opendir(path);
+	if (!dir)
+		return errno;
+
+	while ((d = readdir(dir))) {
+		sprintf(tmp, "%s/%s", path, d->d_name);
+		if (stat(tmp, &s))
+			goto out;
+		ls_one(d->d_name, &s);
+	}
+
+	closedir(dir);
+
+	if (!(flags & LS_RECURSIVE))
+		return 0;
+
+	dir = opendir(path);
+	if (!dir) {
+		errno = -ENOENT;
+		return -ENOENT;
+	}
+
+	while ((d = readdir(dir))) {
+		sprintf(tmp, "%s/%s", path, d->d_name);
+		normalise_path(tmp);
+		if (stat(tmp, &s))
+			goto out;
+		if (!strcmp(d->d_name, "."))
+			continue;
+		if (!strcmp(d->d_name, ".."))
+			continue;
+		if (s.st_mode & S_IFDIR)
+			ls(tmp, flags);
+	}
+out:
+	closedir(dir);
+
+	return 0;
+}
+
+static int do_ls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	int ret, opt;
+	ulong flags = 0;
+
+	getopt_reset();
+
+	while((opt = getopt(argc, argv, "R")) > 0) {
+		switch(opt) {
+		case 'R':
+			flags |= LS_RECURSIVE | LS_SHOWARG;
+			break;
+		}
+	}
+
+	if (argc - optind > 1)
+		flags |= LS_SHOWARG;
+
+	if (optind == argc) {
+		ret = ls(getcwd(), flags);
+		return ret ? 1 : 0;
+	}
+
+	while (optind < argc) {
+		ret = ls(argv[optind], flags);
+		if (ret) {
+			perror("ls");
+			return 1;
+		}
+		optind++;
+	}
+
+	return 0;
+}
+
+static __maybe_unused char cmd_ls_help[] =
+"Usage: ls [OPTION]... [FILE]...\n"
+"List information about the FILEs (the current directory by default).\n"
+"  -R  list subdirectories recursively\n";
+
+U_BOOT_CMD_START(ls)
+	.maxargs	= CONFIG_MAXARGS,
+	.cmd		= do_ls,
+	.usage		= "list a file or directory",
+	U_BOOT_CMD_HELP(cmd_ls_help)
+U_BOOT_CMD_END