137 lines
4.7 KiB
C
137 lines
4.7 KiB
C
/****************************************************************************
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* apps/nshlib/nsh_mmcmds.c
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*
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* Copyright (C) 2011-2012, 2017 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <string.h>
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#include "nsh.h"
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#include "nsh_console.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#undef NEED_CATLINE2
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#ifndef CONFIG_NSH_DISABLE_FREE
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# if defined(HAVE_PROC_KMEM) && (defined(HAVE_PROC_UMEM) || \
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defined(HAVE_PROC_PROGMEM))
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# define NEED_CATLINE2 1
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# elif defined(HAVE_PROC_UMEM) && defined(HAVE_PROC_PROGMEM)
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# define NEED_CATLINE2 1
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# endif
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#endif
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: cat_free
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****************************************************************************/
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#ifdef NEED_CATLINE2
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static void nsh_catline2(FAR struct nsh_vtbl_s *vtbl, FAR const char *filepath)
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{
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int fd;
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/* Open the file for reading */
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fd = open(filepath, O_RDONLY);
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if (fd >= 0)
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{
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/* Skip the first line which contains the header */
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if (fgets(vtbl->iobuffer, IOBUFFERSIZE, INSTREAM(pstate)) != NULL)
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{
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/* The second line contains the info to send to stdout */
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if (fgets(vtbl->iobuffer, IOBUFFERSIZE, INSTREAM(pstate)) != NULL)
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{
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size_t linesize = strnlen(vtbl->iobuffer, IOBUFFERSIZE);
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(void)nsh_write(vtbl, vtbl->iobuffer, linesize);
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}
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}
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(void)close(fd);
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}
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}
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: cmd_free
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****************************************************************************/
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#ifndef CONFIG_NSH_DISABLE_FREE
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int cmd_free(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
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{
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#if defined(HAVE_PROC_KMEM)
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(void)nsh_catfile(vtbl, argv[0], CONFIG_NSH_PROC_MOUNTPOINT "/kmm");
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# ifdef HAVE_PROC_UMEM
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nsh_catline2(vtbl, CONFIG_NSH_PROC_MOUNTPOINT "/umm");
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# endif
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# ifdef HAVE_PROC_PROGMEM
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nsh_catline2(vtbl, CONFIG_NSH_PROC_MOUNTPOINT "/progmem");
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# endif
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return OK;
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#elif defined(HAVE_PROC_UMEM)
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(void)nsh_catfile(vtbl, argv[0], CONFIG_NSH_PROC_MOUNTPOINT "/umm");
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# ifdef HAVE_PROC_PROGMEM
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nsh_catline2(vtbl, CONFIG_NSH_PROC_MOUNTPOINT "/progmem");
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# endif
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return OK;
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#else
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# ifdef HAVE_PROC_PROGMEM
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return nsh_catfile(vtbl, argv[0], CONFIG_NSH_PROC_MOUNTPOINT "/progmem");
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# else
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return ERROR;
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# endif
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#endif
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}
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#endif /* !CONFIG_NSH_DISABLE_FREE */
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