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authorErik Andersen2000-01-15 22:28:50 +0000
committerErik Andersen2000-01-15 22:28:50 +0000
commit3163821967821518cfa4c4315f775ec5301bb023 (patch)
treefe0c764cb41cc3ea86c3dcd270e48fa6a1abebcd /coreutils/whoami.c
parentb7cc49d992ed9a5a59261096012e0b4a811bb7f4 (diff)
downloadbusybox-3163821967821518cfa4c4315f775ec5301bb023.zip
busybox-3163821967821518cfa4c4315f775ec5301bb023.tar.gz
Sync up busybox with the latest and greatest. This is not stuff for
the Embedix release. -Erik
Diffstat (limited to 'coreutils/whoami.c')
-rw-r--r--coreutils/whoami.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/coreutils/whoami.c b/coreutils/whoami.c
new file mode 100644
index 0000000..7fd5d01
--- /dev/null
+++ b/coreutils/whoami.c
@@ -0,0 +1,44 @@
+/*
+ * Mini whoami implementation for busybox
+ *
+ * Copyright (C) 2000 Edward Betts <edward@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 <pwd.h>
+
+static const char whoami_usage[] = "whoami\n\n"
+"Print the user name associated with the current effective user id.\n"
+"Same as id -un.\n";
+
+extern int whoami_main(int argc, char **argv) {
+ struct passwd *pw;
+ uid_t uid;
+
+ if (argc > 1) usage (whoami_usage);
+
+ uid = geteuid ();
+ pw = getpwuid (uid);
+ if (pw) {
+ puts (pw->pw_name);
+ exit (TRUE);
+ }
+ fprintf (stderr, "%s: cannot find username for UID %u\n", argv[0], (unsigned) uid);
+ exit (FALSE);
+}