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Diffstat (limited to 'coreutils/printenv.c')
-rw-r--r-- | coreutils/printenv.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/coreutils/printenv.c b/coreutils/printenv.c new file mode 100644 index 0000000..6971f72 --- /dev/null +++ b/coreutils/printenv.c @@ -0,0 +1,33 @@ +/* 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 "libbb.h" + +int printenv_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int printenv_main(int argc UNUSED_PARAM, char **argv) +{ + /* no variables specified, show whole env */ + if (!argv[1]) { + int e = 0; + while (environ[e]) + puts(environ[e++]); + } else { + /* search for specified variables and print them out if found */ + char *arg, *env; + + while ((arg = *++argv) != NULL) { + env = getenv(arg); + if (env) + puts(env); + } + } + + fflush_stdout_and_exit(EXIT_SUCCESS); +} |