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authorTryn Mirell <tryn@mirell.org>2012-01-16 01:48:51 -0600
committerTryn Mirell <tryn@mirell.org>2012-01-16 01:48:51 -0600
commit8946065302d03e0d6390200b453501d3ccd50713 (patch)
tree32629fe4e4cb40633c75b50a3ccdbc46410ff68e /toys/env.c
parent0bc08c8bfddc8910387368d44e8ae3124e2963f1 (diff)
downloadtoybox-8946065302d03e0d6390200b453501d3ccd50713.tar.gz
'env' implementation - Initial
Diffstat (limited to 'toys/env.c')
-rw-r--r--toys/env.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/toys/env.c b/toys/env.c
new file mode 100644
index 00000000..b05f8922
--- /dev/null
+++ b/toys/env.c
@@ -0,0 +1,52 @@
+/* vi: set sw=4 ts=4:
+ * env.c
+
+USE_ENV(NEWTOY(env, "^?i", TOYFLAG_USR|TOYFLAG_BIN))
+
+config ENV
+ bool "env"
+ default n
+ help
+
+ Set the environment for command invocation
+*/
+
+#include "toys.h"
+
+extern char **environ;
+
+void env_main(void)
+{
+ char **ev;
+ char **command = NULL;
+
+ if (toys.optflags & 1) clearenv();
+
+ for (ev = toys.optargs; *ev != NULL; ev++) {
+ char *env = NULL, *val = NULL;
+ char *del = "=";
+
+ env = strtok(*ev, del);
+
+ if (env != NULL) val = strtok(NULL, del);
+
+ if (val != NULL) {
+ setenv(env, val, 1);
+ } else {
+ command = ev;
+ break;
+ }
+ }
+
+ if (!command) {
+ char **ep;
+ if (environ) {
+ for (ep = environ; *ep != NULL; ep++)
+ xputs(*ep);
+ return;
+ }
+ } else {
+ execvp(*command, command);
+ }
+
+}