From 354bb40e75d94466e91fe6960523612c9d17ccfb Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Thu, 2 Nov 2017 23:11:29 +0300
Subject: Add implementation

---
 mysql/mysys/mf_format.c | 147 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 147 insertions(+)
 create mode 100644 mysql/mysys/mf_format.c

(limited to 'mysql/mysys/mf_format.c')

diff --git a/mysql/mysys/mf_format.c b/mysql/mysys/mf_format.c
new file mode 100644
index 0000000..e319615
--- /dev/null
+++ b/mysql/mysys/mf_format.c
@@ -0,0 +1,147 @@
+/* Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
+
+   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; version 2 of the License.
+
+   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 St, Fifth Floor, Boston, MA 02110-1301  USA */
+
+#include "mysys_priv.h"
+#include "my_sys.h"
+#include <m_string.h>
+
+/*
+  Formats a filename with possible replace of directory of extension
+  Function can handle the case where 'to' == 'name'
+  For a description of the flag values, consult my_sys.h
+  The arguments should be in unix format.
+*/
+
+char * fn_format(char * to, const char *name, const char *dir,
+		    const char *extension, uint flag)
+{
+  char dev[FN_REFLEN], buff[FN_REFLEN], *pos, *startpos;
+  const char *ext;
+  size_t length;
+  size_t dev_length;
+  DBUG_ENTER("fn_format");
+  DBUG_ASSERT(name != NULL);
+  DBUG_ASSERT(extension != NULL);
+  DBUG_PRINT("enter",("name: %s  dir: %s  extension: %s  flag: %d",
+		       name,dir,extension,flag));
+
+  /* Copy and skip directory */
+  name+=(length=dirname_part(dev, (startpos=(char *) name), &dev_length));
+  if (length == 0 || (flag & MY_REPLACE_DIR))
+  {
+    DBUG_ASSERT(dir != NULL);
+    /* Use given directory */
+    convert_dirname(dev,dir,NullS);		/* Fix to this OS */
+  }
+  else if ((flag & MY_RELATIVE_PATH) && !test_if_hard_path(dev))
+  {
+    DBUG_ASSERT(dir != NULL);
+    /* Put 'dir' before the given path */
+    strmake(buff,dev,sizeof(buff)-1);
+    pos=convert_dirname(dev,dir,NullS);
+    strmake(pos,buff,sizeof(buff)-1- (int) (pos-dev));
+  }
+
+  if (flag & MY_PACK_FILENAME)
+    pack_dirname(dev,dev);			/* Put in ./.. and ~/.. */
+  if (flag & MY_UNPACK_FILENAME)
+    (void) unpack_dirname(dev,dev);		/* Replace ~/.. with dir */
+
+  if (!(flag & MY_APPEND_EXT) &&
+      (pos= (char*) strchr(name,FN_EXTCHAR)) != NullS)
+  {
+    if ((flag & MY_REPLACE_EXT) == 0)		/* If we should keep old ext */
+    {
+      length=strlength(name);			/* Use old extension */
+      ext = "";
+    }
+    else
+    {
+      length= (size_t) (pos-(char*) name);	/* Change extension */
+      ext= extension;
+    }
+  }
+  else
+  {
+    length=strlength(name);			/* No ext, use the now one */
+    ext=extension;
+  }
+
+  if (strlen(dev)+length+strlen(ext) >= FN_REFLEN || length >= FN_LEN )
+  {
+    /* To long path, return original or NULL */
+    size_t tmp_length;
+    if (flag & MY_SAFE_PATH)
+      DBUG_RETURN(NullS);
+    tmp_length= strlength(startpos);
+    DBUG_PRINT("error",("dev: '%s'  ext: '%s'  length: %u",dev,ext,
+                        (uint) length));
+    (void) strmake(to, startpos, MY_MIN(tmp_length, FN_REFLEN-1));
+  }
+  else
+  {
+    if (to == startpos)
+    {
+      memmove(buff, name, length);              /* Save name for last copy */
+      name=buff;
+    }
+    pos=strmake(my_stpcpy(to,dev),name,length);
+    (void) my_stpcpy(pos,ext);			/* Don't convert extension */
+  }
+  /*
+    If MY_RETURN_REAL_PATH and MY_RESOLVE_SYMLINK is given, only do
+    realpath if the file is a symbolic link
+  */
+  if (flag & MY_RETURN_REAL_PATH)
+    (void) my_realpath(to, to, MYF(flag & MY_RESOLVE_SYMLINKS ?
+				   MY_RESOLVE_LINK: 0));
+  else if (flag & MY_RESOLVE_SYMLINKS)
+  {
+    my_stpcpy(buff,to);
+    (void) my_readlink(to, buff, MYF(0));
+  }
+  DBUG_RETURN(to);
+} /* fn_format */
+
+
+/*
+  strlength(const string str)
+  Return length of string with end-space:s not counted.
+*/
+
+size_t strlength(const char *str)
+{
+  const char * pos;
+  const char * found;
+  DBUG_ENTER("strlength");
+
+  pos= found= str;
+
+  while (*pos)
+  {
+    if (*pos != ' ')
+    {
+      while (*++pos && *pos != ' ') {};
+      if (!*pos)
+      {
+	found=pos;			/* String ends here */
+	break;
+      }
+    }
+    found=pos;
+    while (*++pos == ' ') {};
+  }
+  DBUG_RETURN((size_t) (found - str));
+} /* strlength */
-- 
cgit v1.1