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patch 8.0.1759: memory leak from duplicate options

Problem:    Memory leak from duplicate options. (Yegappan Lakshmanan)
Solution:   Don't set the default value twice.
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brammool committed Apr 24, 2018
1 parent 24a2d72 commit 09d1d51df5d9b215e583b5bbe36df46afb3db35f
Showing with 18 additions and 10 deletions.
  1. +16 −10 src/option.c
  2. +2 −0 src/version.c
@@ -3805,17 +3805,23 @@ set_option_default(
dvi = ((flags & P_VI_DEF) || compatible) ? VI_DEFAULT : VIM_DEFAULT;
if (flags & P_STRING)
{
/* Use set_string_option_direct() for local options to handle
* freeing and allocating the value. */
if (options[opt_idx].indir != PV_NONE)
set_string_option_direct(NULL, opt_idx,
options[opt_idx].def_val[dvi], opt_flags, 0);
else
/* skip 'termkey' and 'termsize, they are duplicates of
* 'termwinkey' and 'termwinsize' */
if (STRCMP(options[opt_idx].fullname, "termkey") != 0
&& STRCMP(options[opt_idx].fullname, "termsize") != 0)
{
if ((opt_flags & OPT_FREE) && (flags & P_ALLOCED))
free_string_option(*(char_u **)(varp));
*(char_u **)varp = options[opt_idx].def_val[dvi];
options[opt_idx].flags &= ~P_ALLOCED;
/* Use set_string_option_direct() for local options to handle
* freeing and allocating the value. */
if (options[opt_idx].indir != PV_NONE)
set_string_option_direct(NULL, opt_idx,
options[opt_idx].def_val[dvi], opt_flags, 0);
else
{
if ((opt_flags & OPT_FREE) && (flags & P_ALLOCED))
free_string_option(*(char_u **)(varp));
*(char_u **)varp = options[opt_idx].def_val[dvi];
options[opt_idx].flags &= ~P_ALLOCED;
}
}
}
else if (flags & P_NUM)
@@ -761,6 +761,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
1759,
/**/
1758,
/**/

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