diff options
Diffstat (limited to 'nuttx/sched/env_getenv.c')
-rw-r--r-- | nuttx/sched/env_getenv.c | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/nuttx/sched/env_getenv.c b/nuttx/sched/env_getenv.c deleted file mode 100644 index 4709bc380..000000000 --- a/nuttx/sched/env_getenv.c +++ /dev/null @@ -1,135 +0,0 @@ -/**************************************************************************** - * env_getenv.c - * - * Copyright (C) 2007, 2008, 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 <stdlib.h> -#include <errno.h> - -#include "os_internal.h" -#include "env_internal.h" - -/**************************************************************************** - * Private Data - ****************************************************************************/ - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: getenv - * - * Description: - * The getenv() function searches the environment list for a string that - * matches the string pointed to by name. - * - * Parameters: - * name - The name of the variable to find. - * - * Return Value: - * The value of the valiable (read-only) or NULL on failure - * - * Assumptions: - * Not called from an interrupt handler - * - ****************************************************************************/ - -FAR char *getenv(const char *name) -{ - FAR _TCB *rtcb; - FAR struct task_group_s *group; - FAR char *pvar; - FAR char *pvalue = NULL; - int ret = OK; - - /* Verify that a string was passed */ - - if (!name) - { - ret = EINVAL; - goto errout; - } - - /* Get a reference to the thread-private environ in the TCB.*/ - - sched_lock(); - rtcb = (FAR _TCB*)g_readytorun.head; - group = rtcb->group; - - /* Check if the variable exists */ - - if ( !group || (pvar = env_findvar(group, name)) == NULL) - { - ret = ENOENT; - goto errout_with_lock; - } - - /* It does! Get the value sub-string from the name=value string */ - - pvalue = strchr(pvar, '='); - if (!pvalue) - { - /* The name=value string has no '=' This is a bug! */ - - ret = EINVAL; - goto errout_with_lock; - } - - /* Adjust the pointer so that it points to the value right after the '=' */ - - pvalue++; - sched_unlock(); - return pvalue; - -errout_with_lock: - sched_unlock(); -errout: - set_errno(ret); - return NULL; -} - -#endif /* CONFIG_DISABLE_ENVIRON */ - - - |