diff options
Diffstat (limited to 'nuttx/sched/env_unsetenv.c')
-rw-r--r-- | nuttx/sched/env_unsetenv.c | 124 |
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 */ - - - |