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Add a check for NULL in pageant_forget_passphrases().

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I've no reason to believe it will _currently_ be called with the
'passphrases' tree not even set up yet, but I managed to get that to
happen while playing about with experimental code just now, and it
seemed like a good safety check to keep in general.
This commit is contained in:
Simon Tatham 2015-05-14 09:16:26 +01:00
parent 75b7ba26d3
commit ef3959992e
1 changed files with 3 additions and 0 deletions
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3
pageant.c
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@ -1172,6 +1172,9 @@ static tree234 *passphrases = NULL;
*/ */
void pageant_forget_passphrases(void) void pageant_forget_passphrases(void)
{ {
if (!passphrases) /* in case we never set it up at all */
return;
while (count234(passphrases) > 0) { while (count234(passphrases) > 0) {
char *pp = index234(passphrases, 0); char *pp = index234(passphrases, 0);
smemclr(pp, strlen(pp)); smemclr(pp, strlen(pp));