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Diffstat (limited to 'nuttx/lib/stdio/lib_fgets.c')
| -rw-r--r-- | nuttx/lib/stdio/lib_fgets.c | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/nuttx/lib/stdio/lib_fgets.c b/nuttx/lib/stdio/lib_fgets.c deleted file mode 100644 index a4f9089ed..000000000 --- a/nuttx/lib/stdio/lib_fgets.c +++ /dev/null @@ -1,207 +0,0 @@ -/**************************************************************************** - * lib/stdio/lib_fgets.c - * - * Copyright (C) 2007-2008, 2011-2012 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 <stdbool.h> -#include <stdio.h> -#include <unistd.h> -#include <string.h> -#include <ctype.h> -#include <debug.h> - -/**************************************************************************** - * Definitions - ****************************************************************************/ -/* Some environments may return CR as end-of-line, others LF, and others - * both. If not specified, the logic here assumes either (but not both) as - * the default. - */ - -#if defined(CONFIG_EOL_IS_CR) -# undef CONFIG_EOL_IS_LF -# undef CONFIG_EOL_IS_BOTH_CRLF -# undef CONFIG_EOL_IS_EITHER_CRLF -#elif defined(CONFIG_EOL_IS_LF) -# undef CONFIG_EOL_IS_CR -# undef CONFIG_EOL_IS_BOTH_CRLF -# undef CONFIG_EOL_IS_EITHER_CRLF -#elif defined(CONFIG_EOL_IS_BOTH_CRLF) -# undef CONFIG_EOL_IS_CR -# undef CONFIG_EOL_IS_LF -# undef CONFIG_EOL_IS_EITHER_CRLF -#elif defined(CONFIG_EOL_IS_EITHER_CRLF) -# undef CONFIG_EOL_IS_CR -# undef CONFIG_EOL_IS_LF -# undef CONFIG_EOL_IS_BOTH_CRLF -#else -# undef CONFIG_EOL_IS_CR -# undef CONFIG_EOL_IS_LF -# undef CONFIG_EOL_IS_BOTH_CRLF -# define CONFIG_EOL_IS_EITHER_CRLF 1 -#endif - -/**************************************************************************** - * Private Type Declarations - ****************************************************************************/ - -/**************************************************************************** - * Private Function Prototypes - ****************************************************************************/ - -/**************************************************************************** - * Public Data - ****************************************************************************/ - -/**************************************************************************** - * Private Data - ****************************************************************************/ - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Global Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: fgets - * - * Description: - * fgets() reads in at most one less than 'buflen' characters from stream - * and stores them into the buffer pointed to by 'buf'. Reading stops after - * an EOF or a newline. If a newline is read, it is stored into the - * buffer. A null terminator is stored after the last character in the - * buffer. - * - **************************************************************************/ - -char *fgets(FAR char *buf, int buflen, FILE *stream) -{ - int nch = 0; - - /* Sanity checks */ - - if (!stream || !buf || buflen < 1 || stream->fs_filedes < 0) - { - return NULL; - } - - if (buflen < 2) - { - *buf = '\0'; - return buf; - } - - /* Read characters until we have a full line. On each the loop we must - * be assured that there are two free bytes in the line buffer: One for - * the next character and one for the null terminator. - */ - - for(;;) - { - /* Get the next character */ - - int ch = fgetc(stream); - - /* Check for end-of-line. This is tricky only in that some - * environments may return CR as end-of-line, others LF, and - * others both. - */ - -#if defined(CONFIG_EOL_IS_LF) || defined(CONFIG_EOL_IS_BOTH_CRLF) - if (ch == '\n') -#elif defined(CONFIG_EOL_IS_CR) - if (ch == '\r') -#elif CONFIG_EOL_IS_EITHER_CRLF - if (ch == '\n' || ch == '\r') -#endif - { - /* The newline is stored in the buffer along with the null - * terminator. - */ - - buf[nch++] = '\n'; - buf[nch] = '\0'; - return buf; - } - - /* Check for end-of-file */ - - else if (ch == EOF) - { - /* End of file with no data? */ - - if (!nch) - { - /* Yes.. return NULL as the end of file mark */ - - return NULL; - } - else - { - /* Terminate the line */ - - buf[nch] = '\0'; - return buf; - } - } - - /* Otherwise, check if the character is printable and, if so, put the - * character in the line buffer - */ - - else if (isprint(ch)) - { - buf[nch++] = ch; - - /* Check if there is room for another character and the line's - * null terminator. If not then we have to end the line now. - */ - - if (nch + 1 >= buflen) - { - buf[nch] = '\0'; - return buf; - } - } - } -} - |