diff options
Diffstat (limited to 'libbb')
| -rw-r--r-- | libbb/correct_password.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/libbb/correct_password.c b/libbb/correct_password.c index d39a583..5727c65 100644 --- a/libbb/correct_password.c +++ b/libbb/correct_password.c @@ -30,6 +30,15 @@ #include "libbb.h" +void FAST_FUNC nuke_str(char *str) +{ + if (str) { + while (*str) + *str++ = 0; + /* or: memset(str, 0, strlen(str)); - not as small as above */ + } +} + /* Ask the user for a password. * Return 1 without asking if PW has an empty password. * Return -1 on EOF, error while reading input, or timeout. @@ -76,7 +85,7 @@ int FAST_FUNC ask_and_check_password_extended(const struct passwd *pw, encrypted = pw_encrypt(unencrypted, correct, 1); r = (strcmp(encrypted, correct) == 0); free(encrypted); - memset(unencrypted, 0, strlen(unencrypted)); + nuke_str(unencrypted); return r; } |