aboutsummaryrefslogtreecommitdiff
path: root/nuttx/sched/env_unsetenv.c
diff options
context:
space:
mode:
Diffstat (limited to 'nuttx/sched/env_unsetenv.c')
-rw-r--r--nuttx/sched/env_unsetenv.c124
1 files changed, 0 insertions, 124 deletions
diff --git a/nuttx/sched/env_unsetenv.c b/nuttx/sched/env_unsetenv.c
deleted file mode 100644
index 8206a4ece..000000000
--- a/nuttx/sched/env_unsetenv.c
+++ /dev/null
@@ -1,124 +0,0 @@
-/****************************************************************************
- * sched/env_unsetenv.c
- *
- * Copyright (C) 2007, 2009, 2011, 2013 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * 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 NuttX 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 <errno.h>
-
-#include <nuttx/kmalloc.h>
-
-#include "os_internal.h"
-#include "env_internal.h"
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: unsetenv
- *
- * Description:
- * The unsetenv() function deletes the variable name from the environment.
- *
- * Parameters:
- * name - The name of the variable to delete
- *
- * Return Value:
- * Zero on success
- *
- * Assumptions:
- * Not called from an interrupt handler
- *
- ****************************************************************************/
-
-int unsetenv(FAR const char *name)
-{
- FAR _TCB *rtcb = (FAR _TCB*)g_readytorun.head;
- FAR struct task_group_s *group = rtcb->group;
- FAR char *pvar;
- FAR char *newenvp;
- int newsize;
- int ret = OK;
-
- DEBUGASSERT(name && group);
-
- /* Check if the variable exists */
-
- sched_lock();
- if (group && (pvar = env_findvar(group, name)) != NULL)
- {
- /* It does! Remove the name=value pair from the environment. */
-
- (void)env_removevar(group, pvar);
-
- /* Reallocate the new environment buffer */
-
- newsize = group->tg_envsize;
- newenvp = (FAR char *)krealloc(group->tg_envp, newsize);
- if (!newenvp)
- {
- set_errno(ENOMEM);
- ret = ERROR;
- }
- else
- {
- /* Save the new environment pointer (it might have changed due to
- * reallocation.
- */
-
- group->tg_envp = newenvp;
- }
- }
-
- sched_unlock();
- return ret;
-}
-
-#endif /* CONFIG_DISABLE_ENVIRON */
-
-
-