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Catch error condition to prevent NULL pointer dereference.

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Submitted by: Goetz Babin-Ebell <babin-ebell@trustcenter.de>

PR: #766
This commit is contained in:
Lutz Jänicke 2003-11-16 16:30:39 +00:00
parent fda5e38551
commit f35232e6f3
1 changed files with 2 additions and 2 deletions
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4
apps/apps.c
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@ -475,7 +475,7 @@ static int ui_read(UI *ui, UI_STRING *uis)
{ {
const char *password = const char *password =
((PW_CB_DATA *)UI_get0_user_data(ui))->password; ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
if (password[0] != '\0') if (password && password[0] != '\0')
{ {
UI_set_result(ui, uis, password); UI_set_result(ui, uis, password);
return 1; return 1;
@ -499,7 +499,7 @@ static int ui_write(UI *ui, UI_STRING *uis)
{ {
const char *password = const char *password =
((PW_CB_DATA *)UI_get0_user_data(ui))->password; ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
if (password[0] != '\0') if (password && password[0] != '\0')
return 1; return 1;
} }
default: default: