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patch 9.0.0820: memory leak with empty shell command

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Problem:    Memory leak with empty shell command.
Solution:   Free the empty string.
This commit is contained in:
Bram Moolenaar
2022-10-29 21:53:08 +01:00
parent 1577537f10
commit 03d6e6f42b
2 changed files with 8 additions and 1 deletions
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7
src/ex_cmds.c
View File

@@ -957,12 +957,15 @@ do_bang(
} }
} while (trailarg != NULL); } while (trailarg != NULL);
// Don't clear "prevcmd" if there is no command to run. // Only set "prevcmd" if there is a command to run, otherwise keep te one
// we have.
if (STRLEN(newcmd) > 0) if (STRLEN(newcmd) > 0)
{ {
vim_free(prevcmd); vim_free(prevcmd);
prevcmd = newcmd; prevcmd = newcmd;
} }
else
free_newcmd = TRUE;
if (bangredo) // put cmd in redo buffer for ! command if (bangredo) // put cmd in redo buffer for ! command
{ {
@@ -986,6 +989,8 @@ do_bang(
*/ */
if (*p_shq != NUL) if (*p_shq != NUL)
{ {
if (free_newcmd)
vim_free(newcmd);
newcmd = alloc(STRLEN(prevcmd) + 2 * STRLEN(p_shq) + 1); newcmd = alloc(STRLEN(prevcmd) + 2 * STRLEN(p_shq) + 1);
if (newcmd == NULL) if (newcmd == NULL)
return; return;

2
src/version.c
View File

@@ -695,6 +695,8 @@ static char *(features[]) =
static int included_patches[] = static int included_patches[] =
{ /* Add new patch number below this line */ { /* Add new patch number below this line */
/**/
820,
/**/ /**/
819, 819,
/**/ /**/