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Diffstat (limited to 'libbb')
-rw-r--r--libbb/correct_password.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/libbb/correct_password.c b/libbb/correct_password.c
index c515b26..af6ff07 100644
--- a/libbb/correct_password.c
+++ b/libbb/correct_password.c
@@ -31,9 +31,10 @@
#include "libbb.h"
/* Ask the user for a password.
- Return 1 if the user gives the correct password for entry PW,
- 0 if not. Return 1 without asking for a password if run by UID 0
- or if PW has an empty password. */
+ * Return 1 if the user gives the correct password for entry PW,
+ * 0 if not. Return 1 without asking if PW has an empty password.
+ *
+ * NULL pw means "just fake it for login with bad username" */
int correct_password(const struct passwd *pw)
{
@@ -46,6 +47,9 @@ int correct_password(const struct passwd *pw)
char buffer[256];
#endif
+ correct = "aa"; /* fake salt. crypt() can choke otherwise */
+ if (!pw)
+ goto fake_it; /* "aa" will never match */
correct = pw->pw_passwd;
#if ENABLE_FEATURE_SHADOWPASSWDS
if (LONE_CHAR(pw->pw_passwd, 'x') || LONE_CHAR(pw->pw_passwd, '*')) {
@@ -59,6 +63,7 @@ int correct_password(const struct passwd *pw)
if (!correct || correct[0] == '\0')
return 1;
+ fake_it:
unencrypted = bb_askpass(0, "Password: ");
if (!unencrypted) {
return 0;