144 lines
2.9 KiB
C
144 lines
2.9 KiB
C
/*
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* ls.c - list files and directories
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*
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* Copyright (c) 2007 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#include <fs.h>
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#include <linux/stat.h>
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#include <errno.h>
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#include <getopt.h>
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static void ls_one(const char *path, struct stat *s)
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{
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char modestr[11];
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unsigned long namelen = strlen(path);
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mkmodestr(s->st_mode, modestr);
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printf("%s %8d %*.*s\n",modestr, s->st_size, namelen, namelen, path);
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}
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int ls(const char *path, ulong flags)
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{
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DIR *dir;
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struct dirent *d;
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char tmp[PATH_MAX];
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struct stat s;
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if (flags & LS_SHOWARG)
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printf("%s:\n", path);
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if (stat(path, &s)) {
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perror("stat");
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return errno;
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}
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if (!(s.st_mode & S_IFDIR)) {
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ls_one(path, &s);
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return 0;
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}
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dir = opendir(path);
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if (!dir)
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return errno;
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while ((d = readdir(dir))) {
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sprintf(tmp, "%s/%s", path, d->d_name);
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if (stat(tmp, &s))
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goto out;
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ls_one(d->d_name, &s);
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}
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closedir(dir);
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if (!(flags & LS_RECURSIVE))
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return 0;
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dir = opendir(path);
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if (!dir) {
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errno = -ENOENT;
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return -ENOENT;
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}
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while ((d = readdir(dir))) {
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sprintf(tmp, "%s/%s", path, d->d_name);
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normalise_path(tmp);
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if (stat(tmp, &s))
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goto out;
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if (!strcmp(d->d_name, "."))
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continue;
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if (!strcmp(d->d_name, ".."))
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continue;
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if (s.st_mode & S_IFDIR)
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ls(tmp, flags);
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}
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out:
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closedir(dir);
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return 0;
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}
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static int do_ls (cmd_tbl_t *cmdtp, int argc, char *argv[])
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{
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int ret, opt;
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ulong flags = 0;
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getopt_reset();
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while((opt = getopt(argc, argv, "R")) > 0) {
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switch(opt) {
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case 'R':
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flags |= LS_RECURSIVE | LS_SHOWARG;
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break;
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}
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}
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if (argc - optind > 1)
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flags |= LS_SHOWARG;
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if (optind == argc) {
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ret = ls(getcwd(), flags);
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return ret ? 1 : 0;
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}
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while (optind < argc) {
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ret = ls(argv[optind], flags);
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if (ret) {
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perror("ls");
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return 1;
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}
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optind++;
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}
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return 0;
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}
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static __maybe_unused char cmd_ls_help[] =
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"Usage: ls [OPTION]... [FILE]...\n"
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"List information about the FILEs (the current directory by default).\n"
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" -R list subdirectories recursively\n";
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U_BOOT_CMD_START(ls)
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.maxargs = CONFIG_MAXARGS,
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.cmd = do_ls,
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.usage = "list a file or directory",
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U_BOOT_CMD_HELP(cmd_ls_help)
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U_BOOT_CMD_END
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