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ParseTrackInput: do not access beyond end of buffer.

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Reviewed by:	dim
This commit is contained in:
Simon J. Gerraty 2015-11-26 00:26:23 +00:00
parent 669f9224ec
commit fe90c77aae
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=291342
1 changed files with 4 additions and 0 deletions
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4
contrib/bmake/parse.c
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@ -2390,15 +2390,19 @@ static void
ParseTrackInput(const char *name)
{
char *old;
char *ep;
char *fp = NULL;
size_t name_len = strlen(name);
old = Var_Value(MAKE_MAKEFILES, VAR_GLOBAL, &fp);
if (old) {
ep = old + strlen(old) - name_len;
/* does it contain name? */
for (; old != NULL; old = strchr(old, ' ')) {
if (*old == ' ')
old++;
if (old >= ep)
break; /* cannot contain name */
if (memcmp(old, name, name_len) == 0
&& (old[name_len] == 0 || old[name_len] == ' '))
goto cleanup;