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Diffstat (limited to 'nuttx/libc/stdio/lib_fopen.c')
-rw-r--r--nuttx/libc/stdio/lib_fopen.c299
1 files changed, 0 insertions, 299 deletions
diff --git a/nuttx/libc/stdio/lib_fopen.c b/nuttx/libc/stdio/lib_fopen.c
deleted file mode 100644
index cb68b3584..000000000
--- a/nuttx/libc/stdio/lib_fopen.c
+++ /dev/null
@@ -1,299 +0,0 @@
-/****************************************************************************
- * libc/stdio/lib_fopen.c
- *
- * Copyright (C) 2007-2012 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>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <string.h>
-#include <errno.h>
-
-#include "lib_internal.h"
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-enum open_mode_e
-{
- MODE_NONE = 0, /* No access mode determined */
- MODE_R, /* "r" or "rb" open for reading */
- MODE_W, /* "w" or "wb" open for writing, truncating or creating file */
- MODE_A, /* "a" or "ab" open for writing, appending to file */
- MODE_RPLUS, /* "r+", "rb+", or "r+b" open for update (reading and writing) */
- MODE_WPLUS, /* "w+", "wb+", or "w+b" open for update, truncating or creating file */
- MODE_APLUS /* "a+", "ab+", or "a+b" open for update, appending to file */
-};
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: lib_mode2oflags
- ****************************************************************************/
-
-static int lib_mode2oflags(FAR const char *mode)
-{
- enum open_mode_e state;
- int oflags;
-
- /* Verify that a mode string was provided. No error is */
-
- if (!mode)
- {
- goto errout;
- }
-
- /* Parse the mode string to determine the corresponding open flags */
-
- state = MODE_NONE;
- oflags = 0;
-
- for (; *mode; mode++)
- {
- switch (*mode)
- {
- /* Open for read access ("r", "r[+]", "r[b]", "r[b+]", or "r[+b]") */
-
- case 'r' :
- if (state == MODE_NONE)
- {
- /* Open for read access */
-
- oflags = O_RDOK;
- state = MODE_R;
- }
- else
- {
- goto errout;
- }
- break;
-
- /* Open for write access ("w", "w[+]", "w[b]", "w[b+]", or "w[+b]") */
-
- case 'w' :
- if (state == MODE_NONE)
- {
- /* Open for write access, truncating any existing file */
-
- oflags = O_WROK|O_CREAT|O_TRUNC;
- state = MODE_W;
- }
- else
- {
- goto errout;
- }
- break;
-
- /* Open for write/append access ("a", "a[+]", "a[b]", "a[b+]", or "a[+b]") */
-
- case 'a' :
- if (state == MODE_NONE)
- {
- /* Write to the end of the file */
-
- oflags = O_WROK|O_CREAT|O_APPEND;
- state = MODE_A;
- }
- else
- {
- goto errout;
- }
- break;
-
- /* Open for update access ("[r]+", "[rb]+]", "[r]+[b]", "[w]+",
- * "[wb]+]", "[w]+[b]", "[a]+", "[ab]+]", "[a]+[b]")
- */
-
- case '+' :
- switch (state)
- {
- case MODE_R:
- {
- /* Retain any binary mode selection */
-
- oflags &= O_BINARY;
-
- /* Open for read/write access */
-
- oflags |= O_RDWR;
- state = MODE_RPLUS;
- }
- break;
-
- case MODE_W:
- {
- /* Retain any binary mode selection */
-
- oflags &= O_BINARY;
-
- /* Open for write read/access, truncating any existing file */
-
- oflags |= O_RDWR|O_CREAT|O_TRUNC;
- state = MODE_WPLUS;
- }
- break;
-
- case MODE_A:
- {
- /* Retain any binary mode selection */
-
- oflags &= O_BINARY;
-
- /* Read from the beginning of the file; write to the end */
-
- oflags |= O_RDWR|O_CREAT|O_APPEND;
- state = MODE_APLUS;
- }
- break;
-
- default:
- goto errout;
- break;
- }
- break;
-
- /* Open for binary access ("[r]b", "[r]b[+]", "[r+]b", "[w]b",
- * "[w]b[+]", "[w+]b", "[a]b", "[a]b[+]", "[a+]b")
- */
-
- case 'b' :
- if (state != MODE_NONE)
- {
- /* The file is opened in binary mode */
-
- oflags |= O_BINARY;
- }
- else
- {
- goto errout;
- }
- break;
-
- /* Unrecognized or unsupported mode */
-
- default:
- goto errout;
- break;
- }
- }
-
- return oflags;
-
-/* Both fopen and fdopen should fail with errno == EINVAL if the mode
- * string is invalid.
- */
-
-errout:
- set_errno(EINVAL);
- return ERROR;
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: fdopen
- ****************************************************************************/
-
-FAR FILE *fdopen(int fd, FAR const char *mode)
-{
- FAR FILE *ret = NULL;
- int oflags;
-
- /* Map the open mode string to open flags */
-
- oflags = lib_mode2oflags(mode);
- if (oflags >= 0)
- {
- ret = fs_fdopen(fd, oflags, NULL);
- }
-
- return ret;
-}
-
-/****************************************************************************
- * Name: fopen
- ****************************************************************************/
-
-FAR FILE *fopen(FAR const char *path, FAR const char *mode)
-{
- FAR FILE *ret = NULL;
- int oflags;
- int fd;
-
- /* Map the open mode string to open flags */
-
- oflags = lib_mode2oflags(mode);
- if (oflags < 0)
- {
- return NULL;
- }
-
- /* Open the file */
-
- fd = open(path, oflags, 0666);
-
- /* If the open was successful, then fdopen() the fil using the file
- * desciptor returned by open. If open failed, then just return the
- * NULL stream -- open() has already set the errno.
- */
-
- if (fd >= 0)
- {
- ret = fs_fdopen(fd, oflags, NULL);
- if (!ret)
- {
- /* Don't forget to close the file descriptor if any other
- * failures are reported by fdopen().
- */
-
- (void)close(fd);
- }
- }
- return ret;
-}
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