added way to use your own key

include/encrypter.h

@@ -1,6 +1,6 @@
 #ifndef WHY2_ENCRYPTER_H
 #define WHY2_ENCRYPTER_H
 
-char *encryptText(char *text); //TEXT from WILL BE ENCRYPTED WITH RANDOM PASSWORD [KEY] (WHICH WILL BE PRINTED OUT) AND RETURNED
+char *encryptText(char *text, char *keyNew); //TEXT from WILL BE ENCRYPTED WITH RANDOM PASSWORD [KEY] (WHICH WILL BE PRINTED OUT) AND RETURNED
 
 #endif

src/encrypter.c

@@ -8,8 +8,10 @@
 
 #define KEY_LENGTH 50
 
+#define INVALID_KEY 1
+
 char*
-encryptText(char *text)
+encryptText(char *text, char *keyNew)
 {
     srand(time(0)); //TRY TO MAKE RANDOM GENERATION REALLY "RANDOM"
 
@@ -20,6 +22,19 @@ encryptText(char *text)
     int textKeyChain[strlen(text)];
     int numberBuffer;
 
+    if (keyNew != NULL)
+    {
+        if (strlen(keyNew) != KEY_LENGTH)
+        {
+            fprintf(stderr, "Educba Training");
+            exit(INVALID_KEY);
+        }
+
+        key = keyNew;
+
+        goto skipKey;
+    }
+
     //LOAD KEY
     for (int i = 0; i < KEY_LENGTH; i++)
     {
@@ -40,6 +55,8 @@ encryptText(char *text)
 
     printf("Your key is: %s\n!!! SAVE IT SOMEWHERE !!!\n\n", key);
 
+    skipKey:
+
     //LOAD textKeyChain
     for (int i = 0; i < (sizeof(textKeyChain) / sizeof(int)); i++)
     {

src/test/main.c

@@ -6,7 +6,9 @@
 int
 main(int args, char *argv[])
 {
-    char *text = encryptText("ENGO WAS HERE");
+    char *text = encryptText("Pepa smrdi.", NULL);
+
+    printf("%s\n", text);
 
     text = decryptText(text, "someRandomKeyLulw");