Patch 7.4.684
Problem:    When starting several Vim instances in diff mode, the temp files
            used may not be unique. (Issue 353)
Solution:   Add an argument to vim_tempname() to keep the file.
Files:      src/diff.c, src/eval.c, src/ex_cmds.c, src/fileio.c,
            src/hardcopy.c, src/proto/fileio.pro, src/if_cscope.c,
            src/memline.c, src/misc1.c, src/os_unix.c, src/quickfix.c,
            src/spell.c


*** ../vim-7.4.683/src/diff.c   2014-10-31 13:54:21.843214469 +0100
--- src/diff.c  2015-03-31 12:55:35.813986431 +0200
***************
*** 688,696 ****
        return;
  
      /* We need three temp file names. */
!     tmp_orig = vim_tempname('o');
!     tmp_new = vim_tempname('n');
!     tmp_diff = vim_tempname('d');
      if (tmp_orig == NULL || tmp_new == NULL || tmp_diff == NULL)
        goto theend;
  
--- 688,696 ----
        return;
  
      /* We need three temp file names. */
!     tmp_orig = vim_tempname('o', TRUE);
!     tmp_new = vim_tempname('n', TRUE);
!     tmp_diff = vim_tempname('d', TRUE);
      if (tmp_orig == NULL || tmp_new == NULL || tmp_diff == NULL)
        goto theend;
  
***************
*** 920,927 ****
  #endif
  
      /* We need two temp file names. */
!     tmp_orig = vim_tempname('o');
!     tmp_new = vim_tempname('n');
      if (tmp_orig == NULL || tmp_new == NULL)
        goto theend;
  
--- 920,927 ----
  #endif
  
      /* We need two temp file names. */
!     tmp_orig = vim_tempname('o', FALSE);
!     tmp_new = vim_tempname('n', FALSE);
      if (tmp_orig == NULL || tmp_new == NULL)
        goto theend;
  
*** ../vim-7.4.683/src/eval.c   2015-03-21 17:32:14.062779961 +0100
--- src/eval.c  2015-03-31 12:56:35.321337734 +0200
***************
*** 18775,18781 ****
         * Write the string to a temp file, to be used for input of the shell
         * command.
         */
!       if ((infile = vim_tempname('i')) == NULL)
        {
            EMSG(_(e_notmp));
            goto errret;
--- 18775,18781 ----
         * Write the string to a temp file, to be used for input of the shell
         * command.
         */
!       if ((infile = vim_tempname('i', TRUE)) == NULL)
        {
            EMSG(_(e_notmp));
            goto errret;
***************
*** 19134,19140 ****
      static int        x = 'A';
  
      rettv->v_type = VAR_STRING;
!     rettv->vval.v_string = vim_tempname(x);
  
      /* Advance 'x' to use A-Z and 0-9, so that there are at least 34 different
       * names.  Skip 'I' and 'O', they are used for shell redirection. */
--- 19134,19140 ----
      static int        x = 'A';
  
      rettv->v_type = VAR_STRING;
!     rettv->vval.v_string = vim_tempname(x, FALSE);
  
      /* Advance 'x' to use A-Z and 0-9, so that there are at least 34 different
       * names.  Skip 'I' and 'O', they are used for shell redirection. */
*** ../vim-7.4.683/src/ex_cmds.c        2015-03-24 11:46:21.712636141 +0100
--- src/ex_cmds.c       2015-03-31 12:58:51.563852429 +0200
***************
*** 1158,1165 ****
      }
      else
  #endif
!       if ((do_in && (itmp = vim_tempname('i')) == NULL)
!               || (do_out && (otmp = vim_tempname('o')) == NULL))
        {
            EMSG(_(e_notmp));
            goto filterend;
--- 1158,1165 ----
      }
      else
  #endif
!       if ((do_in && (itmp = vim_tempname('i', FALSE)) == NULL)
!               || (do_out && (otmp = vim_tempname('o', FALSE)) == NULL))
        {
            EMSG(_(e_notmp));
            goto filterend;
***************
*** 1963,1969 ****
            if (fp_out == NULL)
            {
                vim_free(tempname);
!               if ((tempname = vim_tempname('o')) != NULL)
                    fp_out = mch_fopen((char *)tempname, WRITEBIN);
            }
  
--- 1963,1969 ----
            if (fp_out == NULL)
            {
                vim_free(tempname);
!               if ((tempname = vim_tempname('o', TRUE)) != NULL)
                    fp_out = mch_fopen((char *)tempname, WRITEBIN);
            }
  
*** ../vim-7.4.683/src/fileio.c 2015-02-27 17:48:05.549308509 +0100
--- src/fileio.c        2015-03-31 13:08:46.549366825 +0200
***************
*** 2872,2878 ****
      char_u    *tmpname;
      char_u    *errmsg = NULL;
  
!     tmpname = vim_tempname('r');
      if (tmpname == NULL)
        errmsg = (char_u *)_("Can't find temp file for conversion");
      else
--- 2872,2878 ----
      char_u    *tmpname;
      char_u    *errmsg = NULL;
  
!     tmpname = vim_tempname('r', FALSE);
      if (tmpname == NULL)
        errmsg = (char_u *)_("Can't find temp file for conversion");
      else
***************
*** 4288,4294 ****
             */
            if (*p_ccv != NUL)
            {
!               wfname = vim_tempname('w');
                if (wfname == NULL)     /* Can't write without a tempfile! */
                {
                    errmsg = (char_u *)_("E214: Can't find temp file for 
writing");
--- 4288,4294 ----
             */
            if (*p_ccv != NUL)
            {
!               wfname = vim_tempname('w', FALSE);
                if (wfname == NULL)     /* Can't write without a tempfile! */
                {
                    errmsg = (char_u *)_("E214: Can't find temp file for 
writing");
***************
*** 7344,7357 ****
  /*
   * vim_tempname(): Return a unique name that can be used for a temp file.
   *
!  * The temp file is NOT created.
   *
   * The returned pointer is to allocated memory.
   * The returned pointer is NULL if no valid name was found.
   */
      char_u  *
! vim_tempname(extra_char)
      int           extra_char UNUSED;  /* char to use in the name instead of 
'?' */
  {
  #ifdef USE_TMPNAM
      char_u    itmp[L_tmpnam]; /* use tmpnam() */
--- 7344,7359 ----
  /*
   * vim_tempname(): Return a unique name that can be used for a temp file.
   *
!  * The temp file is NOT garanteed to be created.  If "keep" is FALSE it is
!  * garanteed to NOT be created.
   *
   * The returned pointer is to allocated memory.
   * The returned pointer is NULL if no valid name was found.
   */
      char_u  *
! vim_tempname(extra_char, keep)
      int           extra_char UNUSED;  /* char to use in the name instead of 
'?' */
+     int           keep UNUSED;
  {
  #ifdef USE_TMPNAM
      char_u    itmp[L_tmpnam]; /* use tmpnam() */
***************
*** 7487,7494 ****
      buf4[2] = extra_char;   /* make it "VIa", "VIb", etc. */
      if (GetTempFileName(szTempFile, buf4, 0, itmp) == 0)
        return NULL;
!     /* GetTempFileName() will create the file, we don't want that */
!     (void)DeleteFile(itmp);
  
      /* Backslashes in a temp file name cause problems when filtering with
       * "sh".  NOTE: This also checks 'shellcmdflag' to help those people who
--- 7489,7497 ----
      buf4[2] = extra_char;   /* make it "VIa", "VIb", etc. */
      if (GetTempFileName(szTempFile, buf4, 0, itmp) == 0)
        return NULL;
!     if (!keep)
!       /* GetTempFileName() will create the file, we don't want that */
!       (void)DeleteFile(itmp);
  
      /* Backslashes in a temp file name cause problems when filtering with
       * "sh".  NOTE: This also checks 'shellcmdflag' to help those people who
*** ../vim-7.4.683/src/hardcopy.c       2014-11-27 17:37:53.524909964 +0100
--- src/hardcopy.c      2015-03-31 13:09:06.897145085 +0200
***************
*** 2751,2757 ****
      /* If the user didn't specify a file name, use a temp file. */
      if (psettings->outfile == NULL)
      {
!       prt_ps_file_name = vim_tempname('p');
        if (prt_ps_file_name == NULL)
        {
            EMSG(_(e_notmp));
--- 2751,2757 ----
      /* If the user didn't specify a file name, use a temp file. */
      if (psettings->outfile == NULL)
      {
!       prt_ps_file_name = vim_tempname('p', TRUE);
        if (prt_ps_file_name == NULL)
        {
            EMSG(_(e_notmp));
*** ../vim-7.4.683/src/proto/fileio.pro 2014-11-19 16:38:01.516679915 +0100
--- src/proto/fileio.pro        2015-03-31 13:13:42.378143437 +0200
***************
*** 23,29 ****
  void buf_store_time __ARGS((buf_T *buf, struct stat *st, char_u *fname));
  void write_lnum_adjust __ARGS((linenr_T offset));
  void vim_deltempdir __ARGS((void));
! char_u *vim_tempname __ARGS((int extra_char));
  void forward_slash __ARGS((char_u *fname));
  void aubuflocal_remove __ARGS((buf_T *buf));
  int au_has_group __ARGS((char_u *name));
--- 23,29 ----
  void buf_store_time __ARGS((buf_T *buf, struct stat *st, char_u *fname));
  void write_lnum_adjust __ARGS((linenr_T offset));
  void vim_deltempdir __ARGS((void));
! char_u *vim_tempname __ARGS((int extra_char, int keep));
  void forward_slash __ARGS((char_u *fname));
  void aubuflocal_remove __ARGS((buf_T *buf));
  int au_has_group __ARGS((char_u *name));
*** ../vim-7.4.683/src/if_cscope.c      2015-02-10 18:33:53.232320026 +0100
--- src/if_cscope.c     2015-03-31 13:09:44.576734484 +0200
***************
*** 1269,1275 ****
      {
        /* fill error list */
        FILE        *f;
!       char_u      *tmp = vim_tempname('c');
        qf_info_T   *qi = NULL;
        win_T       *wp = NULL;
  
--- 1269,1275 ----
      {
        /* fill error list */
        FILE        *f;
!       char_u      *tmp = vim_tempname('c', TRUE);
        qf_info_T   *qi = NULL;
        win_T       *wp = NULL;
  
*** ../vim-7.4.683/src/memline.c        2015-02-10 18:33:53.236319979 +0100
--- src/memline.c       2015-03-31 13:10:20.340344766 +0200
***************
*** 757,763 ****
      /* For a spell buffer use a temp file name. */
      if (buf->b_spell)
      {
!       fname = vim_tempname('s');
        if (fname != NULL)
            (void)mf_open_file(mfp, fname);     /* consumes fname! */
        buf->b_may_swap = FALSE;
--- 757,763 ----
      /* For a spell buffer use a temp file name. */
      if (buf->b_spell)
      {
!       fname = vim_tempname('s', FALSE);
        if (fname != NULL)
            (void)mf_open_file(mfp, fname);     /* consumes fname! */
        buf->b_may_swap = FALSE;
*** ../vim-7.4.683/src/misc1.c  2015-03-21 17:32:14.058780006 +0100
--- src/misc1.c 2015-03-31 13:10:34.772187548 +0200
***************
*** 11049,11055 ****
        return NULL;
  
      /* get a name for the temp file */
!     if ((tempname = vim_tempname('o')) == NULL)
      {
        EMSG(_(e_notmp));
        return NULL;
--- 11049,11055 ----
        return NULL;
  
      /* get a name for the temp file */
!     if ((tempname = vim_tempname('o', FALSE)) == NULL)
      {
        EMSG(_(e_notmp));
        return NULL;
*** ../vim-7.4.683/src/os_unix.c        2015-03-21 17:32:14.066779916 +0100
--- src/os_unix.c       2015-03-31 13:10:46.744057076 +0200
***************
*** 5838,5844 ****
      /*
       * get a name for the temp file
       */
!     if ((tempname = vim_tempname('o')) == NULL)
      {
        EMSG(_(e_notmp));
        return FAIL;
--- 5838,5844 ----
      /*
       * get a name for the temp file
       */
!     if ((tempname = vim_tempname('o', FALSE)) == NULL)
      {
        EMSG(_(e_notmp));
        return FAIL;
*** ../vim-7.4.683/src/quickfix.c       2014-12-17 14:41:06.079437482 +0100
--- src/quickfix.c      2015-03-31 13:11:03.095879127 +0200
***************
*** 2945,2951 ****
  
      if (*p_mef == NUL)
      {
!       name = vim_tempname('e');
        if (name == NULL)
            EMSG(_(e_notmp));
        return name;
--- 2945,2951 ----
  
      if (*p_mef == NUL)
      {
!       name = vim_tempname('e', FALSE);
        if (name == NULL)
            EMSG(_(e_notmp));
        return name;
*** ../vim-7.4.683/src/spell.c  2015-02-10 20:03:39.389939274 +0100
--- src/spell.c 2015-03-31 13:12:12.895118372 +0200
***************
*** 9426,9432 ****
      {
        if (int_wordlist == NULL)
        {
!           int_wordlist = vim_tempname('s');
            if (int_wordlist == NULL)
                return;
        }
--- 9426,9432 ----
      {
        if (int_wordlist == NULL)
        {
!           int_wordlist = vim_tempname('s', FALSE);
            if (int_wordlist == NULL)
                return;
        }
*** ../vim-7.4.683/src/version.c        2015-03-25 20:23:54.335389699 +0100
--- src/version.c       2015-03-31 13:27:54.776857644 +0200
***************
*** 743,744 ****
--- 743,746 ----
  {   /* Add new patch number below this line */
+ /**/
+     684,
  /**/

-- 
If an elephant is left tied to a parking meter, the parking fee has to be paid
just as it would for a vehicle.
                [real standing law in Florida, United States of America]

 /// Bram Moolenaar -- [email protected] -- http://www.Moolenaar.net   \\\
///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\  an exciting new programming language -- http://www.Zimbu.org        ///
 \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///

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