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mkpasswd: prevent using two unitialized variables

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Marco d'Itri 2023-10-08 13:11:04 +02:00
parent f01f8d405b
commit 114b9d2fd9
1 changed files with 3 additions and 0 deletions
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3
mkpasswd.c
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@ -273,6 +273,7 @@ int main(int argc, char *argv[])
if (!salt_prefix) { if (!salt_prefix) {
/* NULL means that crypt_gensalt will choose one later */ /* NULL means that crypt_gensalt will choose one later */
rounds_str[0] = '\0';
} else if (rounds_support == 2) { } else if (rounds_support == 2) {
/* bcrypt strings always contain the rounds number */ /* bcrypt strings always contain the rounds number */
if (rounds <= 5) if (rounds <= 5)
@ -325,6 +326,8 @@ int main(int argc, char *argv[])
* Build the actual argument to crypt(3) by concatenating the * Build the actual argument to crypt(3) by concatenating the
* method prefix, the rounds metadata (if any) and the salt string. * method prefix, the rounds metadata (if any) and the salt string.
*/ */
if (!salt_prefix)
salt_prefix = "";
salt = NOFAIL(malloc(strlen(salt_prefix) + strlen(rounds_str) salt = NOFAIL(malloc(strlen(salt_prefix) + strlen(rounds_str)
+ strlen(salt_arg) + 1)); + strlen(salt_arg) + 1));
*salt = '\0'; *salt = '\0';