path: root/source/ap/vim/patches/7.3.160

To: vim_dev@googlegroups.com
Subject: Patch 7.3.160
Fcc: outbox
From: Bram Moolenaar <Bram@moolenaar.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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------------

Patch 7.3.160
Problem:    Unsafe string copying.
Solution:   Use vim_strncpy() instead of strcpy().  Use vim_strcat() instead
	    of strcat().
Files:	    src/buffer.c, src/ex_docmd.c, src/hardcopy.c, src/menu.c,
	    src/misc1.c, src/misc2.c, src/proto/misc2.pro, src/netbeans.c,
	    src/os_unix.c, src/spell.c, src/syntax.c, src/tag.c

*** ../vim-7.3.159/src/buffer.c	2011-02-15 14:24:42.000000000 +0100
--- src/buffer.c	2011-04-11 16:08:38.000000000 +0200
***************
*** 3176,3182 ****
  	    /* format: "fname + (path) (1 of 2) - VIM" */
  
  	    if (curbuf->b_fname == NULL)
! 		STRCPY(buf, _("[No Name]"));
  	    else
  	    {
  		p = transstr(gettail(curbuf->b_fname));
--- 3176,3182 ----
  	    /* format: "fname + (path) (1 of 2) - VIM" */
  
  	    if (curbuf->b_fname == NULL)
! 		vim_strncpy(buf, (char_u *)_("[No Name]"), IOSIZE - 100);
  	    else
  	    {
  		p = transstr(gettail(curbuf->b_fname));
***************
*** 3232,3238 ****
  	    if (serverName != NULL)
  	    {
  		STRCAT(buf, " - ");
! 		STRCAT(buf, serverName);
  	    }
  	    else
  #endif
--- 3232,3238 ----
  	    if (serverName != NULL)
  	    {
  		STRCAT(buf, " - ");
! 		vim_strcat(buf, serverName, IOSIZE);
  	    }
  	    else
  #endif
*** ../vim-7.3.159/src/ex_docmd.c	2011-03-03 15:54:45.000000000 +0100
--- src/ex_docmd.c	2011-04-11 15:43:48.000000000 +0200
***************
*** 5096,5102 ****
  		char_u	buff[IOSIZE];
  
  		if (n == 1)
! 		    STRCPY(buff, _("1 more file to edit.  Quit anyway?"));
  		else
  		    vim_snprintf((char *)buff, IOSIZE,
  			      _("%d more files to edit.  Quit anyway?"), n);
--- 5096,5104 ----
  		char_u	buff[IOSIZE];
  
  		if (n == 1)
! 		    vim_strncpy(buff,
! 			    (char_u *)_("1 more file to edit.  Quit anyway?"),
! 								  IOSIZE - 1);
  		else
  		    vim_snprintf((char *)buff, IOSIZE,
  			      _("%d more files to edit.  Quit anyway?"), n);
*** ../vim-7.3.159/src/hardcopy.c	2010-08-15 21:57:25.000000000 +0200
--- src/hardcopy.c	2011-04-11 15:30:09.000000000 +0200
***************
*** 1761,1772 ****
  {
      char_u	buffer[MAXPATHL + 1];
  
!     STRCPY(resource->name, name);
      /* Look for named resource file in runtimepath */
      STRCPY(buffer, "print");
      add_pathsep(buffer);
!     STRCAT(buffer, name);
!     STRCAT(buffer, ".ps");
      resource->filename[0] = NUL;
      return (do_in_runtimepath(buffer, FALSE, prt_resource_name,
  							   resource->filename)
--- 1761,1772 ----
  {
      char_u	buffer[MAXPATHL + 1];
  
!     vim_strncpy(resource->name, (char_u *)name, 63);
      /* Look for named resource file in runtimepath */
      STRCPY(buffer, "print");
      add_pathsep(buffer);
!     vim_strcat(buffer, (char_u *)name, MAXPATHL);
!     vim_strcat(buffer, (char_u *)".ps", MAXPATHL);
      resource->filename[0] = NUL;
      return (do_in_runtimepath(buffer, FALSE, prt_resource_name,
  							   resource->filename)
*** ../vim-7.3.159/src/menu.c	2011-01-04 17:49:25.000000000 +0100
--- src/menu.c	2011-04-11 15:17:21.000000000 +0200
***************
*** 1394,1400 ****
      int		idx;
  {
      static vimmenu_T	*menu = NULL;
!     static char_u	tbuffer[256]; /*hack*/
      char_u		*str;
  #ifdef FEAT_MULTI_LANG
      static  int		should_advance = FALSE;
--- 1394,1401 ----
      int		idx;
  {
      static vimmenu_T	*menu = NULL;
! #define TBUFFER_LEN 256
!     static char_u	tbuffer[TBUFFER_LEN]; /*hack*/
      char_u		*str;
  #ifdef FEAT_MULTI_LANG
      static  int		should_advance = FALSE;
***************
*** 1428,1438 ****
  	{
  #ifdef FEAT_MULTI_LANG
  	    if (should_advance)
! 		STRCPY(tbuffer, menu->en_dname);
  	    else
  	    {
  #endif
! 		STRCPY(tbuffer, menu->dname);
  #ifdef FEAT_MULTI_LANG
  		if (menu->en_dname == NULL)
  		    should_advance = TRUE;
--- 1429,1439 ----
  	{
  #ifdef FEAT_MULTI_LANG
  	    if (should_advance)
! 		vim_strncpy(tbuffer, menu->en_dname, TBUFFER_LEN - 2);
  	    else
  	    {
  #endif
! 		vim_strncpy(tbuffer, menu->dname,  TBUFFER_LEN - 2);
  #ifdef FEAT_MULTI_LANG
  		if (menu->en_dname == NULL)
  		    should_advance = TRUE;
*** ../vim-7.3.159/src/misc1.c	2011-04-11 14:27:34.000000000 +0200
--- src/misc1.c	2011-04-11 16:03:22.000000000 +0200
***************
*** 3332,3350 ****
  	if (pn == 1)
  	{
  	    if (n > 0)
! 		STRCPY(msg_buf, _("1 more line"));
  	    else
! 		STRCPY(msg_buf, _("1 line less"));
  	}
  	else
  	{
  	    if (n > 0)
! 		sprintf((char *)msg_buf, _("%ld more lines"), pn);
  	    else
! 		sprintf((char *)msg_buf, _("%ld fewer lines"), pn);
  	}
  	if (got_int)
! 	    STRCAT(msg_buf, _(" (Interrupted)"));
  	if (msg(msg_buf))
  	{
  	    set_keep_msg(msg_buf, 0);
--- 3332,3354 ----
  	if (pn == 1)
  	{
  	    if (n > 0)
! 		vim_strncpy(msg_buf, (char_u *)_("1 more line"),
! 							     MSG_BUF_LEN - 1);
  	    else
! 		vim_strncpy(msg_buf, (char_u *)_("1 line less"),
! 							     MSG_BUF_LEN - 1);
  	}
  	else
  	{
  	    if (n > 0)
! 		vim_snprintf((char *)msg_buf, MSG_BUF_LEN,
! 						     _("%ld more lines"), pn);
  	    else
! 		vim_snprintf((char *)msg_buf, MSG_BUF_LEN,
! 						    _("%ld fewer lines"), pn);
  	}
  	if (got_int)
! 	    vim_strcat(msg_buf, (char_u *)_(" (Interrupted)"), MSG_BUF_LEN);
  	if (msg(msg_buf))
  	{
  	    set_keep_msg(msg_buf, 0);
*** ../vim-7.3.159/src/misc2.c	2010-12-08 13:11:15.000000000 +0100
--- src/misc2.c	2011-04-11 15:30:20.000000000 +0200
***************
*** 1647,1652 ****
--- 1647,1674 ----
  }
  
  /*
+  * Like strcat(), but make sure the result fits in "tosize" bytes and is
+  * always NUL terminated.
+  */
+     void
+ vim_strcat(to, from, tosize)
+     char_u	*to;
+     char_u	*from;
+     size_t	tosize;
+ {
+     size_t tolen = STRLEN(to);
+     size_t fromlen = STRLEN(from);
+ 
+     if (tolen + fromlen + 1 > tosize)
+     {
+ 	mch_memmove(to + tolen, from, tosize - tolen - 1);
+ 	to[tosize - 1] = NUL;
+     }
+     else
+ 	STRCPY(to + tolen, from);
+ }
+ 
+ /*
   * Isolate one part of a string option where parts are separated with
   * "sep_chars".
   * The part is copied into "buf[maxlen]".
*** ../vim-7.3.159/src/proto/misc2.pro	2010-08-15 21:57:28.000000000 +0200
--- src/proto/misc2.pro	2011-04-11 15:29:55.000000000 +0200
***************
*** 40,45 ****
--- 40,46 ----
  void copy_chars __ARGS((char_u *ptr, size_t count, int c));
  void del_trailing_spaces __ARGS((char_u *ptr));
  void vim_strncpy __ARGS((char_u *to, char_u *from, size_t len));
+ void vim_strcat __ARGS((char_u *to, char_u *from, size_t tosize));
  int copy_option_part __ARGS((char_u **option, char_u *buf, int maxlen, char *sep_chars));
  void vim_free __ARGS((void *x));
  int vim_stricmp __ARGS((char *s1, char *s2));
*** ../vim-7.3.159/src/netbeans.c	2011-04-01 15:33:54.000000000 +0200
--- src/netbeans.c	2011-04-11 16:02:51.000000000 +0200
***************
*** 3914,3927 ****
      }
      else
      {
! 	char_u ebuf[BUFSIZ];
  
! 	STRCPY(ebuf, (char_u *)_("E505: "));
! 	STRCAT(ebuf, IObuff);
! 	STRCAT(ebuf, (char_u *)_("is read-only (add ! to override)"));
! 	STRCPY(IObuff, ebuf);
! 	nbdebug(("    %s\n", ebuf ));
! 	emsg(IObuff);
      }
  }
  
--- 3914,3925 ----
      }
      else
      {
! 	char_u msgbuf[IOSIZE];
  
! 	vim_snprintf((char *)msgbuf, IOSIZE,
! 		_("E505: %s is read-only (add ! to override)"), IObuff);
! 	nbdebug(("    %s\n", msgbuf));
! 	emsg(msgbuf);
      }
  }
  
*** ../vim-7.3.159/src/os_unix.c	2011-02-15 17:39:14.000000000 +0100
--- src/os_unix.c	2011-04-11 16:39:11.000000000 +0200
***************
*** 5725,5730 ****
--- 5725,5731 ----
  	if (shell_style == STYLE_PRINT && !did_find_nul)
  	{
  	    /* If there is a NUL, set did_find_nul, else set check_spaces */
+ 	    buffer[len] = NUL;
  	    if (len && (int)STRLEN(buffer) < (int)len - 1)
  		did_find_nul = TRUE;
  	    else
***************
*** 6594,6600 ****
  	    xterm_hints.x = 2;
  	return TRUE;
      }
!     if (mouse_code == NULL)
      {
  	xterm_trace = 0;
  	return FALSE;
--- 6595,6601 ----
  	    xterm_hints.x = 2;
  	return TRUE;
      }
!     if (mouse_code == NULL || STRLEN(mouse_code) > 45)
      {
  	xterm_trace = 0;
  	return FALSE;
*** ../vim-7.3.159/src/spell.c	2011-02-01 13:59:44.000000000 +0100
--- src/spell.c	2011-04-11 15:50:40.000000000 +0200
***************
*** 6957,6963 ****
  			    if (ae->ae_add == NULL)
  				*newword = NUL;
  			    else
! 				STRCPY(newword, ae->ae_add);
  			    p = word;
  			    if (ae->ae_chop != NULL)
  			    {
--- 6957,6963 ----
  			    if (ae->ae_add == NULL)
  				*newword = NUL;
  			    else
! 				vim_strncpy(newword, ae->ae_add, MAXWLEN - 1);
  			    p = word;
  			    if (ae->ae_chop != NULL)
  			    {
***************
*** 6978,6984 ****
  			else
  			{
  			    /* suffix: chop/add at the end of the word */
! 			    STRCPY(newword, word);
  			    if (ae->ae_chop != NULL)
  			    {
  				/* Remove chop string. */
--- 6978,6984 ----
  			else
  			{
  			    /* suffix: chop/add at the end of the word */
! 			    vim_strncpy(newword, word, MAXWLEN - 1);
  			    if (ae->ae_chop != NULL)
  			    {
  				/* Remove chop string. */
***************
*** 8654,8660 ****
       * Write the .sug file.
       * Make the file name by changing ".spl" to ".sug".
       */
!     STRCPY(fname, wfname);
      len = (int)STRLEN(fname);
      fname[len - 2] = 'u';
      fname[len - 1] = 'g';
--- 8654,8660 ----
       * Write the .sug file.
       * Make the file name by changing ".spl" to ".sug".
       */
!     vim_strncpy(fname, wfname, MAXPATHL - 1);
      len = (int)STRLEN(fname);
      fname[len - 2] = 'u';
      fname[len - 1] = 'g';
***************
*** 10261,10267 ****
  
  	    /* The suggested word may replace only part of the bad word, add
  	     * the not replaced part. */
! 	    STRCPY(wcopy, stp->st_word);
  	    if (sug.su_badlen > stp->st_orglen)
  		vim_strncpy(wcopy + stp->st_wordlen,
  					       sug.su_badptr + stp->st_orglen,
--- 10261,10267 ----
  
  	    /* The suggested word may replace only part of the bad word, add
  	     * the not replaced part. */
! 	    vim_strncpy(wcopy, stp->st_word, MAXWLEN);
  	    if (sug.su_badlen > stp->st_orglen)
  		vim_strncpy(wcopy + stp->st_wordlen,
  					       sug.su_badptr + stp->st_orglen,
***************
*** 13162,13168 ****
  	pbad = badsound2;
      }
  
!     if (lendiff > 0)
      {
  	/* Add part of the bad word to the good word, so that we soundfold
  	 * what replaces the bad word. */
--- 13162,13168 ----
  	pbad = badsound2;
      }
  
!     if (lendiff > 0 && stp->st_wordlen + lendiff < MAXWLEN)
      {
  	/* Add part of the bad word to the good word, so that we soundfold
  	 * what replaces the bad word. */
***************
*** 13875,13881 ****
      for (i = gap->ga_len - 1; i >= 0; --i)
      {
  	/* Need to append what follows to check for "the the". */
! 	STRCPY(longword, stp[i].st_word);
  	len = stp[i].st_wordlen;
  	vim_strncpy(longword + len, su->su_badptr + stp[i].st_orglen,
  							       MAXWLEN - len);
--- 13875,13881 ----
      for (i = gap->ga_len - 1; i >= 0; --i)
      {
  	/* Need to append what follows to check for "the the". */
! 	vim_strncpy(longword, stp[i].st_word, MAXWLEN);
  	len = stp[i].st_wordlen;
  	vim_strncpy(longword + len, su->su_badptr + stp[i].st_orglen,
  							       MAXWLEN - len);
***************
*** 14221,14227 ****
  	*t = NUL;
      }
      else
! 	STRCPY(word, s);
  
      smp = (salitem_T *)slang->sl_sal.ga_data;
  
--- 14221,14227 ----
  	*t = NUL;
      }
      else
! 	vim_strncpy(word, s, MAXWLEN - 1);
  
      smp = (salitem_T *)slang->sl_sal.ga_data;
  
*** ../vim-7.3.159/src/syntax.c	2011-04-02 15:12:45.000000000 +0200
--- src/syntax.c	2011-04-11 15:44:30.000000000 +0200
***************
*** 8576,8583 ****
  		if (iarg & hl_attr_table[i])
  		{
  		    if (buf[0] != NUL)
! 			STRCAT(buf, ",");
! 		    STRCAT(buf, hl_name_table[i]);
  		    iarg &= ~hl_attr_table[i];	    /* don't want "inverse" */
  		}
  	    }
--- 8576,8583 ----
  		if (iarg & hl_attr_table[i])
  		{
  		    if (buf[0] != NUL)
! 			vim_strcat(buf, (char_u *)",", 100);
! 		    vim_strcat(buf, (char_u *)hl_name_table[i], 100);
  		    iarg &= ~hl_attr_table[i];	    /* don't want "inverse" */
  		}
  	    }
*** ../vim-7.3.159/src/tag.c	2011-02-25 15:13:43.000000000 +0100
--- src/tag.c	2011-04-11 15:34:59.000000000 +0200
***************
*** 806,812 ****
  		    p = tag_full_fname(&tagp);
  		    if (p == NULL)
  			continue;
! 		    STRCPY(fname, p);
  		    vim_free(p);
  
  		    /*
--- 806,812 ----
  		    p = tag_full_fname(&tagp);
  		    if (p == NULL)
  			continue;
! 		    vim_strncpy(fname, p, MAXPATHL);
  		    vim_free(p);
  
  		    /*
*** ../vim-7.3.159/src/version.c	2011-04-11 14:29:13.000000000 +0200
--- src/version.c	2011-04-11 16:50:53.000000000 +0200
***************
*** 716,717 ****
--- 716,719 ----
  {   /* Add new patch number below this line */
+ /**/
+     160,
  /**/

-- 
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				(Scott Adams - The Dilbert principle)

 /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
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\\\  an exciting new programming language -- http://www.Zimbu.org        ///
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