summaryrefslogtreecommitdiff
path: root/i/pc104/initrd/conf/busybox/coreutils/printenv.c
diff options
context:
space:
mode:
Diffstat (limited to 'i/pc104/initrd/conf/busybox/coreutils/printenv.c')
-rw-r--r--i/pc104/initrd/conf/busybox/coreutils/printenv.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/i/pc104/initrd/conf/busybox/coreutils/printenv.c b/i/pc104/initrd/conf/busybox/coreutils/printenv.c
new file mode 100644
index 0000000..1d41eeb
--- /dev/null
+++ b/i/pc104/initrd/conf/busybox/coreutils/printenv.c
@@ -0,0 +1,42 @@
+/* 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);
+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);
+}