Make cd/pwd

include/commands.h

@@ -27,6 +27,13 @@ int do_cd(int argc, char** argv);
 */
 int do_pwd(int argc, char** argv);
 
+/**
+  validate_cd_argv(argc, argv)
+
+  returns:
+    If success, return 1. (true)
+    Else return 0. (false)
+*/
 /**
    validate_cd_argv(argc, argv)
 
@@ -44,5 +51,11 @@ int validate_cd_argv(int argc, char** argv);
 */
 int validate_pwd_argv(int argc, char** argv);
 
+/**
+   validate_alias_argv(argc, argv)
 
+   returns:
+   If success, return 1. (true)
+   Else return 0. (false)
+*/
 #endif // MYSH_COMMANDS_H_

src/commands.c

 #include <string.h>
-
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
 #include "commands.h"
 
 int do_cd(int argc, char** argv) {
   if (!validate_cd_argv(argc, argv))
     return -1;
   
-  // TODO: Fill it!
+  chdir(argv[1]);
   return 0;
 }
 
@@ -14,19 +16,34 @@ int do_pwd(int argc, char** argv) {
   if (!validate_pwd_argv(argc, argv))
 	 return -1;
 
-  // TODO: Fill it!
+	char buf[1000];
+	getcwd(buf,1000);
+	printf("%s\n", buf);
 
 	return 0;
 }
+/**
+int do_alias(int argc, char**argv){
     
+    //fill it
     
+    return 0;
+}
+*/
 int validate_cd_argv(int argc, char** argv) {
-  // TODO: Fill it!
+  if(strcmp(argv[0],"cd") == 0 && argc == 2)
   	return 1;
+  return 0;
 }
 
 int validate_pwd_argv(int argc, char** argv) {
-  // TODO: Fill it!
+  if(strcmp(argv[0],"pwd") == 0 && argc == 1)
 	return 1;
+  return 0;
 }
-
+/**
+int validate_alias_argv(int argc, char** argv){
+	//fill it
+  return 1;
+}
+*/

src/utils.c

 #include "utils.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
 
 void mysh_parse_command(const char* command,
                         int *argc, char*** argv)
 {
-  // TODO: Fill this!
+  char* token = NULL;
+  char parse[] = " \t\n";
+  char str[1000];
+
+  strcpy(str, command);
+  token = strtok(str,parse);
+  *argv = (char**)malloc(sizeof(char*)*1000);
+  *argc = 0;  
+
+  if(token == NULL){ 
+	  strcpy((*argv)[0], "");
+	  *argc = 1;
+	  return;
+  }
+  
+
+  while(token != NULL){
+	  (*argv)[*argc] = (char*)malloc(sizeof(char)*1000);
+	  strcpy((*argv)[*argc], token);
+	  token = strtok(NULL, parse);
+	  (*argc) ++; 
+  }
 }