diff options
Diffstat (limited to 'util/sbase/printenv.c')
-rw-r--r-- | util/sbase/printenv.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/util/sbase/printenv.c b/util/sbase/printenv.c new file mode 100644 index 00000000..19b5b7d2 --- /dev/null +++ b/util/sbase/printenv.c @@ -0,0 +1,39 @@ +/* See LICENSE file for copyright and license details. */ +#include <stdio.h> +#include <stdlib.h> + +#include "util.h" + +extern char **environ; + +static void +usage(void) +{ + eprintf("usage: %s [var ...]\n", argv0); +} + +int +main(int argc, char *argv[]) +{ + char *var; + int ret = 0; + + ARGBEGIN { + default: + usage(); + } ARGEND + + if (!argc) { + for (; *environ; environ++) + puts(*environ); + } else { + for (; *argv; argc--, argv++) { + if ((var = getenv(*argv))) + puts(var); + else + ret = 1; + } + } + + return fshut(stdout, "<stdout>") ? 2 : ret; +} |