1 files changed, 120 insertions, 0 deletions
diff --git a/nuttx/sched/env_putenv.c b/nuttx/sched/env_putenv.c
new file mode 100644
index 000000000..7ea8ef96b
--- /dev/null
+++ b/nuttx/sched/env_putenv.c
@@ -0,0 +1,120 @@
+/****************************************************************************
+ * env_putenv.c
+ *
+ *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name Gregory Nutt nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#ifndef CONFIG_DISABLE_ENVIRON
+
+#include <sched.h>
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Function:  putenv
+ *
+ * Description:
+ *   The putenv() function adds or changes the value of environment variables.
+ *   The argument string is of the form name=value. If name does not already
+ *   exist in  the  environment, then string is added to the environment. If
+ *   name does exist, then the value of name in the environment is changed to
+ *   value.
+ *
+ * Parameters:
+ *   name=value string describing the environment setting to add/modify
+ *
+ * Return Value:
+ *   Zero on sucess
+ *
+ * Assumptions:
+ *   Not called from an interrupt handler
+ *
+ ****************************************************************************/
+
+int putenv(char *string)
+{
+  char *pname;
+  char *pequal;
+  int ret = OK;
+
+  /* Verify that a string was passed */
+
+  if (!string)
+    {
+      ret = EINVAL;
+      goto errout;
+    }
+
+  /* Parse the name=value string */
+
+  pname = strdup(string);
+  if (!pname)
+    {
+      ret = ENOMEM;
+      goto errout;
+    }
+
+  pequal = strchr( pname, '=');
+  if (pequal)
+    {
+      /* Then let setenv do all of the work */
+
+      *pequal = '\0';
+      ret = setenv(pname, pequal+1, TRUE);
+    }
+  free(pname);
+  return ret;
+
+errout:
+  *get_errno_ptr() = ret;
+  return ERROR;
+}
+
+#endif /* CONFIG_DISABLE_ENVIRON */
+
+
+