npm

commit c81dc8de91085cc34ee56f76cc02a8bcaa9cfe23
parent 62492ddf40952b099fceff1f22ebc8821104fa39
Author: Nihal Jere <nihal@nihaljere.xyz>
Date:   Tue, 16 Mar 2021 15:11:31 -0500

add default password length

Diffstat:
M
common.h
 | 
1
+
M
npwm.c
 | 
10
+++++++---

2 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/common.h b/common.h
@@ -4,6 +4,7 @@
 #define NONCE_LEN 12
 #define SALT_LEN 8
 #define ROUNDS 2000
+#define DEFAULT_LEN 40
 
 #if SALT_LEN == 0 || SALT_LEN > SIZE_MAX - 4
 #error Invalid salt size
diff --git a/npwm.c b/npwm.c
@@ -104,9 +104,13 @@ int main(int argc, char *argv[]) {
             die("failed to generate nonce");
 
         errno = 0;
-        len = strtol(getenv("NPWM_LENGTH"), NULL, 10);
-        if (errno || len <= 0 || len > PASSWORD_MAX_LEN)
-            die("invalid value for NPWM_LENGTH:");
+        if (!getenv("NPWM_LENGTH"))
+            len = DEFAULT_LEN;
+        else {
+            len = strtol(getenv("NPWM_LENGTH"), NULL, 10);
+            if (errno || len <= 0 || len > PASSWORD_MAX_LEN)
+                die("invalid value for NPWM_LENGTH:");
+        }
 
         if ((valid = getenv("NPWM_VALID")) == NULL)
             valid = "print";