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authorRob Landley <rob@landley.net>2012-08-25 14:25:22 -0500
committerRob Landley <rob@landley.net>2012-08-25 14:25:22 -0500
commit3a9241add947cb6d24b5de7a8927517426a78795 (patch)
treed122ab6570439cd6b17c7d73ed8d4e085e0b8a95 /toys/other/printenv.c
parent689f095bc976417bf50810fe59a3b3ac32b21105 (diff)
downloadtoybox-3a9241add947cb6d24b5de7a8927517426a78795.tar.gz
Move commands into "posix", "lsb", and "other" menus/directories.
Diffstat (limited to 'toys/other/printenv.c')
-rw-r--r--toys/other/printenv.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/toys/other/printenv.c b/toys/other/printenv.c
new file mode 100644
index 00000000..305b3e7d
--- /dev/null
+++ b/toys/other/printenv.c
@@ -0,0 +1,47 @@
+/* vi: set sw=4 ts=4:
+ *
+ * printenv.c - Print environment variables.
+ *
+ * Copyright 2012 Georgi Chorbadzhiyski <georgi@unixsol.org>
+ *
+
+USE_PRINTENV(NEWTOY(printenv, "0(null)", TOYFLAG_USR|TOYFLAG_BIN))
+
+config PRINTENV
+ bool "printenv"
+ default y
+ help
+ usage: printenv [-0] [env_var...]
+
+ Print environment variables.
+
+ -0 Use \0 as delimiter instead of \n
+*/
+
+#include "toys.h"
+
+extern char **environ;
+
+void printenv_main(void)
+{
+ char **env, **var = toys.optargs;
+ char delim = '\n';
+
+ if (toys.optflags) delim = 0;
+
+ do {
+ int catch = 0, len = *var ? strlen(*var) : 0;
+
+ for (env = environ; *env; env++) {
+ char *out = *env;
+ if (*var) {
+ if (!strncmp(out, *var, len) && out[len] == '=')
+ out += len +1;
+ else continue;
+ }
+ xprintf("%s%c", out, delim);
+ catch++;
+ }
+ if (*var && !catch) toys.exitval = 1;
+ } while (*var && *(++var));
+}