final

src/commands.c

 #include <string.h>
-
+#include <stdio.h>
 #include "commands.h"
+#include <unistd.h>
 
 int do_cd(int argc, char** argv) {
   if (!validate_cd_argv(argc, argv))
     return -1;
   
-  // TODO: Fill it!
+	int i=chdir(argv[1]);
+	
+	if(i==0)
+	{
 		return 0;
 	}
+	else
+	return -1;
+}
 
 int do_pwd(int argc, char** argv) {
   if (!validate_pwd_argv(argc, argv))
@@ -16,17 +23,30 @@ int do_pwd(int argc, char** argv) {
 
   // TODO: Fill it!
 	
+	char buf[1000];
+	getcwd(buf,1000);
+	printf("%s\n",buf);
+
   return 0;
 }
 
 
 int validate_cd_argv(int argc, char** argv) {
   // TODO: Fill it!
+ 
+	if(strcmp(argv[0],"cd")==0&&argc==2)
 	return 1;
+	else
+	return 0;
 }
 
 int validate_pwd_argv(int argc, char** argv) {
   // TODO: Fill it!
+ 
+
+	if(strcmp(argv[0],"pwd")==0&&argc==1)
 	return 1;
+	else
+	return 0;
 }
 

src/utils.c

+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
 #include "utils.h"
 
 void mysh_parse_command(const char* command,
                         int *argc, char*** argv)
 {
+
  // TODO: Fill this!
+
+
+
+	int n=0;
+	char *t;
+	char tmp[100];
+	*argc=0;
+	strcpy(tmp,command);
+	
+	*argv=(char**)malloc(sizeof(char*)*50);
+	(*argv)[n]=(char*)malloc(sizeof(char)*50);
+
+	t=strtok(tmp," \n\t");
+
+	if(t==NULL)
+	{
+		
+		strcpy((*argv)[n],"");
+		*argc=1;
+		return;
+	}
+
+	
+
+	while(t!=NULL)
+	{
+		
+
+	strcpy((*argv)[n++],t);
+	(*argv)[n]=(char*)malloc(sizeof(char)*50);
+	t=strtok(NULL," \n\t");
+	(*argc)++;
+}
 }