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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#include "drizzled/internal/my_sys.h"
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#ifdef HAVE_SYS_STAT_H
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# include <sys/stat.h>
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#include "drizzled/internal/m_string.h"
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#include "mysys_priv.h"
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Formats a filename with possible replace of directory of extension
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char * fn_format(char * to, const char *name, const char *dir,
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const char *extension, uint32_t flag)
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const char *extension, uint flag)
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char dev[FN_REFLEN], buff[FN_REFLEN], *pos;
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const char *startpos = name;
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char dev[FN_REFLEN], buff[FN_REFLEN], *pos, *startpos;
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register size_t length;
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DBUG_ENTER("fn_format");
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DBUG_PRINT("enter",("name: %s dir: %s extension: %s flag: %d",
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name,dir,extension,flag));
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/* Copy and skip directory */
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name+=(length=dirname_part(dev, startpos, &dev_length));
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name+=(length=dirname_part(dev, (startpos=(char *) name), &dev_length));
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if (length == 0 || (flag & MY_REPLACE_DIR))
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/* Use given directory */
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convert_dirname(dev,dir,NULL); /* Fix to this OS */
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convert_dirname(dev,dir,NullS); /* Fix to this OS */
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else if ((flag & MY_RELATIVE_PATH) && !test_if_hard_path(dev))
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/* Put 'dir' before the given path */
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strncpy(buff,dev,sizeof(buff)-1);
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pos=convert_dirname(dev,dir,NULL);
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strncpy(pos,buff,sizeof(buff)-1- (int) (pos-dev));
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strmake(buff,dev,sizeof(buff)-1);
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pos=convert_dirname(dev,dir,NullS);
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strmake(pos,buff,sizeof(buff)-1- (int) (pos-dev));
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if (flag & MY_PACK_FILENAME)
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pack_dirname(dev,dev); /* Put in ./.. and ~/.. */
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if (flag & MY_UNPACK_FILENAME)
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(void) unpack_dirname(dev,dev); /* Replace ~/.. with dir */
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if (!(flag & MY_APPEND_EXT) &&
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(pos= (char*) strchr(name,FN_EXTCHAR)) != NULL)
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(pos= (char*) strchr(name,FN_EXTCHAR)) != NullS)
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if ((flag & MY_REPLACE_EXT) == 0) /* If we should keep old ext */
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/* To long path, return original or NULL */
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if (flag & MY_SAFE_PATH)
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tmp_length= min(strlength(startpos), (size_t)(FN_REFLEN-1));
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strncpy(to,startpos,tmp_length);
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tmp_length= strlength(startpos);
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DBUG_PRINT("error",("dev: '%s' ext: '%s' length: %u",dev,ext,
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(void) strmake(to,startpos,min(tmp_length,FN_REFLEN-1));
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if (to == startpos)
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memmove(buff, name, length); /* Save name for last copy */
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bmove(buff,(uchar*) name,length); /* Save name for last copy */
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char *tmp= strcpy(to, dev) + strlen(dev);
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pos= strncpy(tmp,name,length) + length;
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(void) strcpy(pos,ext); /* Don't convert extension */
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pos=strmake(strmov(to,dev),name,length);
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(void) strmov(pos,ext); /* Don't convert extension */
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If MY_RETURN_REAL_PATH and MY_RESOLVE_SYMLINK is given, only do
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realpath if the file is a symbolic link
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if (flag & MY_RETURN_REAL_PATH)
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struct stat stat_buff;
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char rp_buff[PATH_MAX];
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if ((!flag & MY_RESOLVE_SYMLINKS) ||
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(!lstat(to,&stat_buff) && S_ISLNK(stat_buff.st_mode)))
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if (!realpath(to,rp_buff))
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my_load_path(rp_buff, to, NULL);
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rp_buff[FN_REFLEN-1]= '\0';
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(void) my_realpath(to, to, MYF(flag & MY_RESOLVE_SYMLINKS ?
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MY_RESOLVE_LINK: 0));
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else if (flag & MY_RESOLVE_SYMLINKS)
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ssize_t sym_link_size= readlink(buff,to,FN_REFLEN-1);
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if (sym_link_size >= 0)
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to[sym_link_size]= '\0';
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(void) my_readlink(to, buff, MYF(0));
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} /* fn_format */