To comply with C89:

- Moved variable declarations to top of function
 - Constant output buffer inside the function

Moved strlen calls from main to inside function to make code easier to read.

Also switched from fancy quotes to single quotes in expected output

test/default/pwhash_scrypt_ll.c

@@ -5,52 +5,56 @@
 #include "cmptest.h"
 
 /* Tarsnap test vectors, see: https://www.tarsnap.com/scrypt/scrypt.pdf */
-unsigned long olenGlobal = 64ul;
 
-uint8_t password1[] = "\0";
-uint8_t salt1[] = "\0";
+uint8_t password1[] = "";
+uint8_t salt1[] = "";
 uint64_t N1 = 16ul;
 uint32_t r1 = 1ul;
 uint32_t p1 = 1ul;
 
-uint8_t password2[] = "password\0";
-uint8_t salt2[] = "NaCl\0";
+uint8_t password2[] = "password";
+uint8_t salt2[] = "NaCl";
 uint64_t N2 = 1024ul;
 uint32_t r2 = 8ul;
 uint32_t p2 = 16ul;
 
-uint8_t password3[] = "pleaseletmein\0";
-uint8_t salt3[] = "SodiumChloride\0";
+uint8_t password3[] = "pleaseletmein";
+uint8_t salt3[] = "SodiumChloride";
 uint64_t N3 = 16384ul;
 uint32_t r3 = 8ul;
 uint32_t p3 = 1ul;
 
-uint8_t password4[] = "pleaseletmein\0";
-uint8_t salt4[] = "SodiumChloride\0";
+uint8_t password4[] = "pleaseletmein";
+uint8_t salt4[] = "SodiumChloride";
 size_t N4 = 1048576ul;
 size_t r4 = 8ul;
 size_t p4 = 1ul;
 
-void test_vector(uint8_t * password, size_t passwordLength, uint8_t * salt, size_t saltLenght, uint64_t N, uint32_t r, uint32_t p, size_t olen)
+void test_vector(uint8_t * password,  uint8_t * salt, uint64_t N, uint32_t r, uint32_t p)
 {
-    uint8_t data[olen];
-    int ret = crypto_pwhash_scryptsalsa208sha256_ll(password, passwordLength, salt, saltLenght, N, r, p, data, olen);
-    if(ret != 0)
-    {
-        printf("crypto_scrypt_compat failed!");
-    } 
-    
-    // Print header
-    printf("scrypt(“");
-    printf("%s", password);
-    printf("”, “");
-    printf("%s", salt);
-    printf("”, %lu, %lu, %lu, %lu) =\n", N, r, p, olen);
-
-    // Print test result
+    const size_t olen = 64;
+    uint8_t data[64];
+    size_t passwordLength = strlen((const char*) password);
+    size_t saltLenght = strlen((const char*) salt);
     int lineitems = 0;
     const int lineitemsLimit = 15;
-    for(int i = 0; i < olen; ++i)
+
+    int i = crypto_pwhash_scryptsalsa208sha256_ll(password, passwordLength, salt, saltLenght, N, r, p, data, olen);
+    if(i != 0)
+    {
+        printf("crypto_scrypt_compat failed!");
+    }
+ 
+    // Print header
+    printf("scrypt('");
+    printf("%s", password);
+    printf("', '");
+    printf("%s", salt);
+    printf("', %llu, %lu, %lu, %lu) =", N, r, p, olen);
+    printf("\n");
+
+    // Print test result
+    for(i = 0; i < olen; ++i)
     {
         printf("%02x", data[i]);
         printf((lineitems < lineitemsLimit)? " " : "\n");
@@ -60,22 +64,10 @@ void test_vector(uint8_t * password, size_t passwordLength, uint8_t * salt, size
 
 int main(void)
 {
-   test_vector(
-      password1, strlen((const char*)password1), 
-      salt1, strlen((const char*)salt1), 
-      N1, r1, p1, olenGlobal);
-   test_vector(
-      password2, strlen((const char*)password2), 
-      salt2, strlen((const char*)salt2), 
-      N2, r2, p2, olenGlobal);
-   test_vector(
-        password3, strlen((const char*)password3), 
-        salt3, strlen((const char*)salt3), 
-        N3, r3, p3, olenGlobal);
-   test_vector(
-    password4, strlen((const char*)password4), 
-    salt4, strlen((const char*)salt4), 
-    N4, r4, p4, olenGlobal);
+   test_vector(password1, salt1, N1, r1, p1);
+   test_vector(password2, salt2, N2, r2, p2);
+   test_vector(password3, salt3, N3, r3, p3);
+   test_vector(password4, salt4, N4, r4, p4);
 
    return 0;
 }

test/default/pwhash_scrypt_ll.exp

@@ -1,19 +1,19 @@
-scrypt(“”, “”, 16, 1, 1, 64) =
+scrypt('', '', 16, 1, 1, 64) =
 77 d6 57 62 38 65 7b 20 3b 19 ca 42 c1 8a 04 97
 f1 6b 48 44 e3 07 4a e8 df df fa 3f ed e2 14 42
 fc d0 06 9d ed 09 48 f8 32 6a 75 3a 0f c8 1f 17
 e8 d3 e0 fb 2e 0d 36 28 cf 35 e2 0c 38 d1 89 06
-scrypt(“password”, “NaCl”, 1024, 8, 16, 64) =
+scrypt('password', 'NaCl', 1024, 8, 16, 64) =
 fd ba be 1c 9d 34 72 00 78 56 e7 19 0d 01 e9 fe
 7c 6a d7 cb c8 23 78 30 e7 73 76 63 4b 37 31 62
 2e af 30 d9 2e 22 a3 88 6f f1 09 27 9d 98 30 da
 c7 27 af b9 4a 83 ee 6d 83 60 cb df a2 cc 06 40
-scrypt(“pleaseletmein”, “SodiumChloride”, 16384, 8, 1, 64) =
+scrypt('pleaseletmein', 'SodiumChloride', 16384, 8, 1, 64) =
 70 23 bd cb 3a fd 73 48 46 1c 06 cd 81 fd 38 eb
 fd a8 fb ba 90 4f 8e 3e a9 b5 43 f6 54 5d a1 f2
 d5 43 29 55 61 3f 0f cf 62 d4 97 05 24 2a 9a f9
 e6 1e 85 dc 0d 65 1e 40 df cf 01 7b 45 57 58 87
-scrypt(“pleaseletmein”, “SodiumChloride”, 1048576, 8, 1, 64) =
+scrypt('pleaseletmein', 'SodiumChloride', 1048576, 8, 1, 64) =
 21 01 cb 9b 6a 51 1a ae ad db be 09 cf 70 f8 81
 ec 56 8d 57 4a 2f fd 4d ab e5 ee 98 20 ad aa 47
 8e 56 fd 8f 4b a5 d0 9f fa 1c 6d 92 7c 40 f4 c3