X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fgetline.c;h=5002a2e50efe05d70df17e16ff02d054a03d9d6d;hb=cd56634a4a8179fd5a4419fbb3e27211b042ab1c;hp=f4edecc8aae261e9e2ffdc1bbe78352c5e510bc8;hpb=92295bc4b2a378893386efd3cf8cf9bc31024b59;p=gnulib.git

diff --git a/lib/getline.c b/lib/getline.c
index f4edecc8a..5002a2e50 100644
--- a/lib/getline.c
+++ b/lib/getline.c
@@ -1,148 +1,27 @@
-/* getline.c -- Replacement for GNU C library function getline
+/* getline.c --- Implementation of replacement getline function.
+   Copyright (C) 2005-2007, 2009-2014 Free Software Foundation, Inc.
 
-   Copyright (C) 1993, 1996, 1997, 1998, 2000, 2003 Free Software
-   Foundation, Inc.
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2, or (at
+   your option) any later version.
 
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
+   This program is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
-
-/* Written by Jan Brittenson, bson@gnu.ai.mit.edu.  */
-
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
+   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
 
-#include "getline.h"
+/* Written by Simon Josefsson. */
 
-/* The `getdelim' function is only declared if the following symbol
-   is defined.  */
-#ifndef _GNU_SOURCE
-# define _GNU_SOURCE 1
-#endif
+#include <config.h>
 
-#include <stddef.h>
 #include <stdio.h>
 
-#if defined __GNU_LIBRARY__ && HAVE_GETDELIM
-
-int
+ssize_t
 getline (char **lineptr, size_t *n, FILE *stream)
 {
   return getdelim (lineptr, n, '\n', stream);
 }
-
-#else /* ! have getdelim */
-
-# if STDC_HEADERS
-#  include <stdlib.h>
-# else
-char *malloc (), *realloc ();
-# endif
-
-#include "unlocked-io.h"
-
-/* Always add at least this many bytes when extending the buffer.  */
-#define MIN_CHUNK 64
-
-/* Read up to (and including) a delimiter DELIM1 from STREAM into *LINEPTR
-   + OFFSET (and NUL-terminate it).  If DELIM2 is non-zero, then read up
-   and including the first occurrence of DELIM1 or DELIM2.  *LINEPTR is
-   a pointer returned from malloc (or NULL), pointing to *N characters of
-   space.  It is realloc'd as necessary.  Return the number of characters
-   read (not including the NUL terminator), or -1 on error or EOF.  */
-
-static int
-getdelim2 (char **lineptr, size_t *n, FILE *stream, int delim1, int delim2,
-	   size_t offset)
-{
-  size_t nchars_avail;		/* Allocated but unused chars in *LINEPTR.  */
-  char *read_pos;		/* Where we're reading into *LINEPTR. */
-  int ret;
-
-  if (!lineptr || !n || !stream)
-    return -1;
-
-  if (!*lineptr)
-    {
-      *n = MIN_CHUNK;
-      *lineptr = malloc (*n);
-      if (!*lineptr)
-	return -1;
-    }
-
-  if (*n < offset)
-    return -1;
-
-  nchars_avail = *n - offset;
-  read_pos = *lineptr + offset;
-
-  for (;;)
-    {
-      register int c = getc (stream);
-
-      /* We always want at least one char left in the buffer, since we
-	 always (unless we get an error while reading the first char)
-	 NUL-terminate the line buffer.  */
-
-      if (nchars_avail < 2)
-	{
-	  if (*n > MIN_CHUNK)
-	    *n *= 2;
-	  else
-	    *n += MIN_CHUNK;
-
-	  nchars_avail = *n + *lineptr - read_pos;
-	  *lineptr = realloc (*lineptr, *n);
-	  if (!*lineptr)
-	    return -1;
-	  read_pos = *n - nchars_avail + *lineptr;
-	}
-
-      if (c == EOF || ferror (stream))
-	{
-	  /* Return partial line, if any.  */
-	  if (read_pos == *lineptr)
-	    return -1;
-	  else
-	    break;
-	}
-
-      *read_pos++ = c;
-      nchars_avail--;
-
-      if (c == delim1 || (delim2 && c == delim2))
-	/* Return the line.  */
-	break;
-    }
-
-  /* Done - NUL terminate and return the number of chars read.  */
-  *read_pos = '\0';
-
-  ret = read_pos - (*lineptr + offset);
-  return ret;
-}
-
-
-int
-getline (char **lineptr, size_t *n, FILE *stream)
-{
-  return getdelim2 (lineptr, n, stream, '\n', 0, 0);
-}
-
-int
-getdelim (char **lineptr, size_t *n, int delimiter, FILE *stream)
-{
-  return getdelim2 (lineptr, n, stream, delimiter, 0, 0);
-}
-#endif