Some accrued fixes/updates.
* cp/mv now accepts (and ignores) the -f flag, since it always
does force anyway
* tail can now accept -<num> commands (e.g. -10) for better
compatibility with the standard tail command
* added a simple id implementation; doesn't support supp. groups yet
diff --git a/coreutils/id.c b/coreutils/id.c
new file mode 100644
index 0000000..8ded0e5
--- /dev/null
+++ b/coreutils/id.c
@@ -0,0 +1,92 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini id implementation for busybox
+ *
+ *
+ * Copyright (C) 2000 by Randolph Chung <tausq@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include "internal.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <pwd.h>
+#include <grp.h>
+#include <sys/types.h>
+
+static const char id_usage[] =
+ "id [OPTIONS]... [USERNAME]\n\n"
+ "Print information for USERNAME or the current user\n\n"
+ "\t-g\tprints only the group ID\n"
+ "\t-u\tprints only the user ID\n"
+ "\t-r\tprints the real user ID instead of the effective ID (with -ug)\n\n";
+
+extern int id_main(int argc, char **argv)
+{
+ int no_user = 0, no_group = 0, print_real = 0;
+ char *cp, *user, *group;
+ gid_t gid;
+
+ cp = user = group = NULL;
+
+ argc--; argv++;
+
+ while (argc > 0) {
+ cp = *argv;
+ if (*cp == '-') {
+ switch (*++cp) {
+ case 'u': no_group = 1; break;
+ case 'g': no_user = 1; break;
+ case 'r': print_real = 1; break;
+ default: usage(id_usage);
+ }
+ } else {
+ user = cp;
+ }
+ argc--; argv++;
+ }
+
+ if (no_user && no_group) usage(id_usage);
+
+ if (user == NULL) {
+ user = xmalloc(9);
+ group = xmalloc(9);
+ if (print_real) {
+ my_getpwuid(user, getuid());
+ my_getgrgid(group, getgid());
+ } else {
+ my_getpwuid(user, geteuid());
+ my_getgrgid(group, getegid());
+ }
+ } else {
+ group = xmalloc(9);
+ gid = my_getpwnamegid(user);
+ my_getgrgid(group, gid);
+ }
+
+ if (no_group) printf("%u\n", my_getpwnam(user));
+ else if (no_user) printf("%u\n", my_getgrnam(group));
+ else
+ printf("uid=%u(%s) gid=%u(%s)\n",
+ my_getpwnam(user), user, my_getgrnam(group), group);
+
+
+ exit(0);
+}
+
+
+/* END CODE */