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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-03-30 20:34:21 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-03-30 20:34:21 +0000 |
commit | 144c447139eb6739d67c01a446bf00826316f624 (patch) | |
tree | 41746a15608e2c1f504b17a4fa94b96f0251c4b5 /nuttx/lib/lib_fseek.c | |
parent | 16eaa06941bbeb6c8fb1131bf631dfc6cb77452b (diff) | |
download | px4-nuttx-144c447139eb6739d67c01a446bf00826316f624.tar.gz px4-nuttx-144c447139eb6739d67c01a446bf00826316f624.tar.bz2 px4-nuttx-144c447139eb6739d67c01a446bf00826316f624.zip |
Move stdio.h functions in lib/ to lib/stdio
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3440 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/lib/lib_fseek.c')
-rw-r--r-- | nuttx/lib/lib_fseek.c | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/nuttx/lib/lib_fseek.c b/nuttx/lib/lib_fseek.c deleted file mode 100644 index 379e5c322..000000000 --- a/nuttx/lib/lib_fseek.c +++ /dev/null @@ -1,138 +0,0 @@ -/**************************************************************************** - * lib/lib_fseek.c - * - * Copyright (C) 2007, 2008 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 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. - * - ****************************************************************************/ - -/**************************************************************************** - * Compilation Switches - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> - -#include <sys/types.h> -#include <stdio.h> -#include <unistd.h> -#include <fcntl.h> -#include <errno.h> - -#include "lib_internal.h" - -/**************************************************************************** - * Definitions - ****************************************************************************/ - -/**************************************************************************** - * Private Type Declarations - ****************************************************************************/ - -/**************************************************************************** - * Private Function Prototypes - ****************************************************************************/ - -/**************************************************************************** - * Global Constant Data - ****************************************************************************/ - -/**************************************************************************** - * Global Variables - ****************************************************************************/ - -/**************************************************************************** - * Private Constant Data - ****************************************************************************/ - -/**************************************************************************** - * Private Variables - ****************************************************************************/ - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: fseek - * - * Description: - * The fseek() function sets the file position indicator for the stream - * pointed to by stream. The new position, measured in bytes, is obtained - * by adding offset bytes to the position specified by whence. If whence is - * set to SEEK_SET, SEEK_CUR, or SEEK_END, the offset is relative to the - * start of the file, the current position indicator, or end-of-file, - * respectively. A successful call to the fseek() function clears the - * end-of-file indicator for the stream and undoes any effects of the ungetc(3) - * function on the same stream. - * - * Returned Value: - * Zero on succes; -1 on failure with errno set appropriately. - * - ****************************************************************************/ - -int fseek(FAR FILE *stream, long int offset, int whence) -{ - #if CONFIG_STDIO_BUFFER_SIZE > 0 - /* Flush any valid read/write data in the buffer (also verifies stream) */ - - if (lib_rdflush(stream) < 0 || lib_wrflush(stream) < 0) - { - return ERROR; - } -#else - /* Verify that we were provided with a stream */ - - if (!stream) - { - errno = EBADF; - return ERROR; - } -#endif - - /* On success or failure, discard any characters saved by ungetc() */ - -#if CONFIG_NUNGET_CHARS > 0 - stream->fs_nungotten = 0; -#endif - - /* Perform the fseek on the underlying file descriptor */ - - return lseek(stream->fs_filedes, offset, whence) == (off_t)-1 ? ERROR : OK; -} - - |