1 files changed, 125 insertions, 0 deletions
diff --git a/contrib/libio/iogetdelim.c b/contrib/libio/iogetdelim.c
new file mode 100644
index 000000000000..50918b3e8dcc
--- /dev/null
+++ b/contrib/libio/iogetdelim.c
@@ -0,0 +1,125 @@
+/* Copyright (C) 1994, 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU IO Library.
+
+   This library 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 library 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 library; see the file COPYING.  If not, write to
+   the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
+   MA 02111-1307, USA.
+
+   As a special exception, if you link this library with files
+   compiled with a GNU compiler to produce an executable, this does
+   not cause the resulting executable to be covered by the GNU General
+   Public License.  This exception does not however invalidate any
+   other reasons why the executable file might be covered by the GNU
+   General Public License.  */
+
+#ifdef __STDC__
+#include <stdlib.h>
+#endif
+#include "libioP.h"
+#include <string.h>
+#include <errno.h>
+
+/* Read up to (and including) a TERMINATOR from FP into *LINEPTR
+   (and null-terminate it).  *LINEPTR is a pointer returned from malloc (or
+   NULL), pointing to *N characters of space.  It is realloc'ed as
+   necessary.  Returns the number of characters read (not including the
+   null terminator), or -1 on error or EOF.  */
+
+_IO_ssize_t
+_IO_getdelim (lineptr, n, delimiter, fp)
+     char **lineptr;
+     _IO_size_t *n;
+     int delimiter;
+     _IO_FILE *fp;
+{
+  int result;
+  _IO_ssize_t cur_len = 0;
+  _IO_ssize_t len;
+
+  if (lineptr == NULL || n == NULL)
+    {
+      MAYBE_SET_EINVAL;
+      return -1;
+    }
+  CHECK_FILE (fp, -1);
+  _IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp);
+  _IO_flockfile (fp);
+  if (_IO_ferror_unlocked (fp))
+    {
+      result = -1;
+      goto unlock_return;
+    }
+
+  if (*lineptr == NULL || *n == 0)
+    {
+      *n = 120;
+      *lineptr = (char *) malloc (*n);
+      if (*lineptr == NULL)
+	{
+	  result = -1;
+	  goto unlock_return;
+	}
+    }
+
+  len = fp->_IO_read_end - fp->_IO_read_ptr;
+  if (len <= 0)
+    {
+      if (__underflow (fp) == EOF)
+	{
+	  result = -1;
+	  goto unlock_return;
+	}
+      len = fp->_IO_read_end - fp->_IO_read_ptr;
+    }
+
+  for (;;)
+    {
+      _IO_size_t needed;
+      char *t;
+      t = (char *) memchr ((void *) fp->_IO_read_ptr, delimiter, len);
+      if (t != NULL)
+	len = (t - fp->_IO_read_ptr) + 1;
+      /* Make enough space for len+1 (for final NUL) bytes.  */
+      needed = cur_len + len + 1;
+      if (needed > *n)
+	{
+	  if (needed < 2 * *n)
+	    needed = 2 * *n;  /* Be generous. */
+	  *n = needed;
+	  *lineptr = (char *) realloc (*lineptr, needed);
+	  if (*lineptr == NULL)
+	    {
+	      result = -1;
+	      goto unlock_return;
+	    }
+	}
+      memcpy (*lineptr + cur_len, (void *) fp->_IO_read_ptr, len);
+      fp->_IO_read_ptr += len;
+      cur_len += len;
+      if (t != NULL || __underflow (fp) == EOF)
+	break;
+      len = fp->_IO_read_end - fp->_IO_read_ptr;
+    }
+  (*lineptr)[cur_len] = '\0';
+  result = cur_len;
+
+unlock_return:
+  _IO_cleanup_region_end (1);
+  return result;
+}
+
+#ifdef weak_alias
+weak_alias (_IO_getdelim, __getdelim)
+weak_alias (_IO_getdelim, getdelim)
+#endif