Added background, cd, and moved off of readline

main.c

@@ -14,28 +14,51 @@
 int main() {
     // Read line examples: https://eli.thegreenplace.net/2016/basics-of-using-the-readline-library/
     int should_run = 1;
-    char *readBuff;
+    char *readBuff = malloc(sizeof(char) * 5000);
     fprintf(stdout, "Welcome to Burket Shell (bsh)\n");
     fprintf(stdout, "Copyright 2018 Matthew Burket\n");
     fprintf(stdout, "Released under the GPL v3 License\n");
     while (should_run) {
-        while ((readBuff = readline("bsh >> ")) != NULL) {
+        fprintf(stdout, "bsh # ");
+        fgets(readBuff, sizeof(char) * 5000, stdin);
+        // Remove the newline from fgets
+        strtok(readBuff, "\n");
+        //while ((readBuff = readline("bsh >> ")) != 0) {
             if (strlen(readBuff) > 0) {
                 add_history(readBuff);
             }
+
             if (strcmp("exit", readBuff) == TRUE) {
                 should_run = 0;
+                free(readBuff);
                 exit(EXIT_SUCCESS);
             }
             char **tokens = malloc(sizeof(char) * 5000);
-            tokenize(readBuff, tokens);
+            int numTokens = tokenize(readBuff, tokens);
+            char *lastToken = tokens[numTokens-2];
+            if (strcmp(tokens[0], "cd") == TRUE) {
+                if (tokens[1] == NULL) {
+                    fprintf(stderr, "bsh: expected one argument for cd");
+                    continue;
+                } else {
+                    chdir(tokens[1]);
+                }
+            }
+
+            int runInBackground = 0;
+            if (strcmp(lastToken, "&") == TRUE) {
+                runInBackground = 1;
+                tokens[numTokens-2] = NULL;
+            }
             if (fork() == 0) {
                 int returnCode = execvp(tokens[0], tokens);
                 printf("Return code %d\n", returnCode);
             } else {
-                wait(NULL);
+                if (runInBackground == 0) {
+                    wait(NULL);
+                }
             }
-            free(readBuff);
+            free(tokens);
         }
-    }
+    //}
 }
\ No newline at end of file

tokenize.c

@@ -4,7 +4,7 @@
 
 #include "tokenize.h"
 
-char **tokenize(char *string, char **output) {
+int tokenize(char *string, char **output) {
     char *strtok_save;
     char *del = " ";
     output[0] = strtok_r(string, del, &strtok_save);
@@ -15,5 +15,5 @@ char **tokenize(char *string, char **output) {
         output[i] = token;
         i++;
     }
-    return output;
+    return i;
 }

tokenize.h

@@ -5,5 +5,5 @@
 #ifndef COMS352_SHELL_TOKENIZE_H
 #define COMS352_SHELL_TOKENIZE_H
 #include <string.h>
-char **tokenize(char *string, char **output);
+int tokenize(char *string, char **output);
 #endif //COMS352_SHELL_TOKENIZE_H