/*
Copyright ( c ) 2000 , 2010 , Oracle and / or its affiliates
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 */
/* my_setwd() and my_getwd() works with intern_filenames !! */
#include "mysys_priv.h"
#include <m_string.h>
#include "mysys_err.h"
#ifdef HAVE_GETWD
#include <sys/param.h>
#endif
#if defined (_WIN32)
#include <m_ctype.h>
#include <dos.h>
#include <direct.h>
#endif
/* Gets current working directory in buff.
SYNPOSIS
my_getwd ( )
buf Buffer to store result . Can be curr_dir [ ] .
size Size of buffer
MyFlags Flags
NOTES
Directory is always ended with FN_LIBCHAR
RESULT
0 ok
# error
*/
int my_getwd(char * buf, size_t size, myf MyFlags)
{
char * pos;
DBUG_ENTER("my_getwd" );
DBUG_PRINT("my" ,("buf:%p size: %u MyFlags %lu" ,
buf, (uint) size, MyFlags));
if (size < 1 )
DBUG_RETURN(-1 );
if (curr_dir[0 ]) /* Current pos is saved here */
(void ) strmake(buf,&curr_dir[0 ],size-1 );
else
{
#if defined (HAVE_GETCWD)
if (size < 2 )
DBUG_RETURN(-1 );
if (!getcwd(buf,(uint) (size-2 )) && MyFlags & MY_WME)
{
my_errno=errno;
my_error(EE_GETWD,MYF(ME_BELL),errno);
DBUG_RETURN(-1 );
}
#elif defined (HAVE_GETWD)
{
char pathname[MAXPATHLEN];
getwd(pathname);
strmake(buf,pathname,size-1 );
}
#else
#error "No way to get current directory"
#endif
if (*((pos=strend(buf))-1 ) != FN_LIBCHAR) /* End with FN_LIBCHAR */
{
pos[0 ]= FN_LIBCHAR;
pos[1 ]=0 ;
}
(void ) strmake(&curr_dir[0 ],buf, (size_t) (FN_REFLEN-1 ));
}
DBUG_RETURN(0 );
} /* my_getwd */
/* Set new working directory */
int my_setwd(const char *dir, myf MyFlags)
{
int res;
size_t length;
char *start, *pos;
DBUG_ENTER("my_setwd" );
DBUG_PRINT("my" ,("dir: '%s' MyFlags %lu" , dir, MyFlags));
start=(char *) dir;
if (! dir[0 ] || (dir[0 ] == FN_LIBCHAR && dir[1 ] == 0 ))
dir=FN_ROOTDIR;
if ((res=chdir((char *) dir)) != 0 )
{
my_errno=errno;
if (MyFlags & MY_WME)
my_error(EE_SETWD,MYF(ME_BELL),start,errno);
}
else
{
if (test_if_hard_path(start))
{ /* Hard pathname */
pos= strmake(&curr_dir[0 ],start,(size_t) FN_REFLEN-1 );
if (pos[-1 ] != FN_LIBCHAR)
{
length=(uint) (pos-(char *) curr_dir);
curr_dir[length]=FN_LIBCHAR; /* must end with '/' */
curr_dir[length+1 ]='\0' ;
}
}
else
curr_dir[0 ]='\0' ; /* Don't save name */
}
DBUG_RETURN(res);
} /* my_setwd */
/* Test if hard pathname */
/* Returns 1 if dirname is a hard path */
int test_if_hard_path(register const char *dir_name)
{
if (dir_name[0 ] == FN_HOMELIB && dir_name[1 ] == FN_LIBCHAR)
return (home_dir != NullS && home_dir != dir_name && test_if_hard_path(home_dir));
if (dir_name[0 ] == FN_LIBCHAR)
return (TRUE );
#ifdef FN_DEVCHAR
return (strchr(dir_name,FN_DEVCHAR) != 0 );
#else
return FALSE ;
#endif
} /* test_if_hard_path */
/*
Test if a name contains an ( absolute or relative ) path .
SYNOPSIS
has_path ( )
name The name to test .
RETURN
TRUE name contains a path .
FALSE name does not contain a path .
*/
my_bool has_path(const char *name)
{
return MY_TEST(strchr(name, FN_LIBCHAR))
#if FN_LIBCHAR != '/'
|| MY_TEST(strchr(name, '/' ))
#endif
#ifdef FN_DEVCHAR
|| MY_TEST(strchr(name, FN_DEVCHAR))
#endif
;
}
Messung V0.5 in Prozent C=92 H=100 G=95
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-10-08)
¤
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