Add libbroken.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@417 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/roken/setenv.c

@@ -0,0 +1,31 @@
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+RCSID("$Id$");
+
+/*
+ * This is the easy way out, use putenv to implement setenv. We might
+ * leak some memory but that is ok since we are usally about to exec
+ * anyway.
+ */
+
+int
+setenv(const char *var, const char *val, int rewrite)
+{
+    char *t;
+
+    if (!rewrite && getenv(var) != 0)
+	return 0;
+  
+    if ((t = malloc(strlen(var) + strlen(val) + 2)) == 0)
+	return -1;
+
+    strcpy(t, var);
+    strcat(t, "=");
+    strcat(t, val);
+    if (putenv(t) == 0)
+	return 0;
+    else
+	return -1;
+}