diff options
Diffstat (limited to 'externals/mysql/mysys/mf_tempfile.c')
| -rw-r--r-- | externals/mysql/mysys/mf_tempfile.c | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/externals/mysql/mysys/mf_tempfile.c b/externals/mysql/mysys/mf_tempfile.c deleted file mode 100644 index 40016210de4..00000000000 --- a/externals/mysql/mysys/mf_tempfile.c +++ /dev/null @@ -1,189 +0,0 @@ -/* Copyright (C) 2000 MySQL AB - - 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ - -#include "mysys_priv.h" -#include <m_string.h> -#include "my_static.h" -#include "mysys_err.h" -#include <errno.h> -#ifdef HAVE_PATHS_H -#include <paths.h> -#endif - - - -/* - @brief - Create a temporary file with unique name in a given directory - - @details - create_temp_file - to pointer to buffer where temporary filename will be stored - dir directory where to create the file - prefix prefix the filename with this - mode Flags to use for my_create/my_open - MyFlags Magic flags - - @return - File descriptor of opened file if success - -1 and sets errno if fails. - - @note - The behaviour of this function differs a lot between - implementation, it's main use is to generate a file with - a name that does not already exist. - - When passing O_TEMPORARY flag in "mode" the file should - be automatically deleted - - The implementation using mkstemp should be considered the - reference implementation when adding a new or modifying an - existing one - -*/ - -File create_temp_file(char *to, const char *dir, const char *prefix, - int mode __attribute__((unused)), - myf MyFlags __attribute__((unused))) -{ - File file= -1; -#ifdef __WIN__ - TCHAR path_buf[MAX_PATH-14]; -#endif - - DBUG_ENTER("create_temp_file"); - DBUG_PRINT("enter", ("dir: %s, prefix: %s", dir, prefix)); -#if defined (__WIN__) - - /* - Use GetTempPath to determine path for temporary files. - This is because the documentation for GetTempFileName - has the following to say about this parameter: - "If this parameter is NULL, the function fails." - */ - if (!dir) - { - if(GetTempPath(sizeof(path_buf), path_buf) > 0) - dir = path_buf; - } - /* - Use GetTempFileName to generate a unique filename, create - the file and release it's handle - - uses up to the first three letters from prefix - */ - if (GetTempFileName(dir, prefix, 0, to) == 0) - DBUG_RETURN(-1); - - DBUG_PRINT("info", ("name: %s", to)); - - /* - Open the file without the "open only if file doesn't already exist" - since the file has already been created by GetTempFileName - */ - if ((file= my_open(to, (mode & ~O_EXCL), MyFlags)) < 0) - { - /* Open failed, remove the file created by GetTempFileName */ - int tmp= my_errno; - (void) my_delete(to, MYF(0)); - my_errno= tmp; - } - -#elif defined(_ZTC__) - if (!dir) - dir=getenv("TMPDIR"); - if ((res=tempnam((char*) dir,(char *) prefix))) - { - strmake(to,res,FN_REFLEN-1); - (*free)(res); - file=my_create(to, 0, mode | O_EXCL | O_NOFOLLOW, MyFlags); - } -#elif defined(HAVE_MKSTEMP) && !defined(__NETWARE__) - { - char prefix_buff[30]; - uint pfx_len; - File org_file; - - pfx_len= (uint) (strmov(strnmov(prefix_buff, - prefix ? prefix : "tmp.", - sizeof(prefix_buff)-7),"XXXXXX") - - prefix_buff); - if (!dir && ! (dir =getenv("TMPDIR"))) - dir=P_tmpdir; - if (strlen(dir)+ pfx_len > FN_REFLEN-2) - { - errno=my_errno= ENAMETOOLONG; - DBUG_RETURN(file); - } - strmov(convert_dirname(to,dir,NullS),prefix_buff); - org_file=mkstemp(to); - if (mode & O_TEMPORARY) - (void) my_delete(to, MYF(MY_WME | ME_NOINPUT)); - file=my_register_filename(org_file, to, FILE_BY_MKSTEMP, - EE_CANTCREATEFILE, MyFlags); - /* If we didn't manage to register the name, remove the temp file */ - if (org_file >= 0 && file < 0) - { - int tmp=my_errno; - close(org_file); - (void) my_delete(to, MYF(MY_WME | ME_NOINPUT)); - my_errno=tmp; - } - } -#elif defined(HAVE_TEMPNAM) - { -#if !defined(__NETWARE__) - extern char **environ; -#endif - - char *res,**old_env,*temp_env[1]; - if (dir && !dir[0]) - { /* Change empty string to current dir */ - to[0]= FN_CURLIB; - to[1]= 0; - dir=to; - } -#if !defined(__NETWARE__) - old_env= (char**) environ; - if (dir) - { /* Don't use TMPDIR if dir is given */ - environ=(const char**) temp_env; - temp_env[0]=0; - } -#endif - if ((res=tempnam((char*) dir, (char*) prefix))) - { - strmake(to,res,FN_REFLEN-1); - (*free)(res); - file=my_create(to,0, - (int) (O_RDWR | O_BINARY | O_TRUNC | O_EXCL | O_NOFOLLOW | - O_TEMPORARY | O_SHORT_LIVED), - MYF(MY_WME)); - - } - else - { - DBUG_PRINT("error",("Got error: %d from tempnam",errno)); - } -#if !defined(__NETWARE__) - environ=(const char**) old_env; -#endif - } -#else -#error No implementation found for create_temp_file -#endif - if (file >= 0) - thread_safe_increment(my_tmp_file_created,&THR_LOCK_open); - DBUG_RETURN(file); -} |