1 files changed, 41 insertions, 0 deletions

diff --git a/coreutils/printenv.c b/coreutils/printenv.c
new file mode 100644
index 000000000..ec50f7151
--- /dev/null
+++ b/coreutils/printenv.c
@@ -0,0 +1,41 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * printenv implementation for busybox
+ *
+ * Copyright (C) 2005 by Erik Andersen <andersen@codepoet.org>
+ * Copyright (C) 2005 by Mike Frysinger <vapier@gentoo.org>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "busybox.h"
+
+int printenv_main(int argc, char **argv)
+{
+        extern char **environ;
+        int e = 0;
+
+        /* no variables specified, show whole env */
+        if (argc == 1)
+                while (environ[e])
+                        puts(environ[e++]);
+
+        /* search for specified variables and print them out if found */
+        else {
+                int i;
+                size_t l;
+                char *arg, *env;
+
+                for (i=1; (arg = argv[i]); ++i)
+                        for (; (env = environ[e]); ++e) {
+                                l = strlen(arg);
+                                if (!strncmp(env, arg, l) && env[l] == '=')
+                                        puts(env + l + 1);
+                        }
+        }
+
+        fflush_stdout_and_exit(0);
+}