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-rw-r--r--mysys/mf_format.c139
1 files changed, 139 insertions, 0 deletions
diff --git a/mysys/mf_format.c b/mysys/mf_format.c
new file mode 100644
index 00000000..57ac3ea4
--- /dev/null
+++ b/mysys/mf_format.c
@@ -0,0 +1,139 @@
+/* Copyright (c) 2000, 2011, 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 02110-1335 USA */
+
+#include "mysys_priv.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;
+ reg1 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))
+ {
+ /* Use given directory */
+ convert_dirname(dev,dir,NullS); /* Fix to this OS */
+ }
+ else if ((flag & MY_RELATIVE_PATH) && !test_if_hard_path(dev))
+ {
+ /* Put 'dir' before the given path */
+ strmake_buf(buff, dev);
+ 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)
+ {
+ bmove(buff,(uchar*) name,length); /* Save name for last copy */
+ name=buff;
+ }
+ pos=strmake(strmov(to,dev),name,length);
+ (void) strmov(pos,ext); /* Don't convert extension */
+ }
+ if (flag & MY_RETURN_REAL_PATH)
+ (void) my_realpath(to, to, MYF(0));
+ else if (flag & MY_RESOLVE_SYMLINKS)
+ {
+ strmov(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)
+{
+ reg1 const char * pos;
+ reg2 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 */