X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fgetline.c;h=bc8cbd98a2ebc00d23083ed8ee5cdeb61d1cd77e;hb=8d8bbae775e3c77070161dafc81c0c2dbba0fef4;hp=170a26e96405e5b818dc602e2cf006ed4ab1adbf;hpb=cf42d3e5e80be6bf7093a3ca9be0d04033eaf527;p=gnulib.git

diff --git a/lib/getline.c b/lib/getline.c
index 170a26e96..bc8cbd98a 100644
--- a/lib/getline.c
+++ b/lib/getline.c
@@ -1,143 +1,29 @@
-/* getline.c -- Replacement for GNU C library function getline
+/* getline.c --- Implementation of replacement getline function.
+   Copyright (C) 2005, 2006, 2007, 2009, 2010 Free Software Foundation, Inc.
 
-Copyright (C) 1993, 1996, 1997, 1998 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 of the
-License, 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., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301, USA.  */
 
-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 Simon Josefsson. */
 
-/* Written by Jan Brittenson, bson@gnu.ai.mit.edu.  */
-
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-/* The `getdelim' function is only declared if the following symbol
-   is defined.  */
-#ifndef _GNU_SOURCE
-# define _GNU_SOURCE 1
-#endif
+#include <config.h>
 
 #include <stdio.h>
-#include <sys/types.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 */
-
-# define NDEBUG
-# include <assert.h>
-
-# if STDC_HEADERS
-#  include <stdlib.h>
-# else
-char *malloc (), *realloc ();
-# endif
-
-/* Always add at least this many bytes when extending the buffer.  */
-# define MIN_CHUNK 64
-
-/* Read up to (and including) a TERMINATOR from STREAM into *LINEPTR
-   + OFFSET (and null-terminate it). *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
-   null terminator), or -1 on error or EOF.  */
-
-int
-getstr (char **lineptr, size_t *n, FILE *stream, char terminator, size_t offset)
-{
-  int 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;
-    }
-
-  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.  */
-
-      assert(*n - nchars_avail == read_pos - *lineptr);
-      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;
-	  assert(*n - nchars_avail == read_pos - *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 == terminator)
-	/* 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 getstr (lineptr, n, stream, '\n', 0);
-}
-
-int
-getdelim (char **lineptr, size_t *n, int delimiter, FILE *stream)
-{
-  return getstr (lineptr, n, stream, delimiter, 0);
-}
-#endif