End of lab

Labs/Lab10/fdump.c

@@ -8,4 +8,9 @@
 #include <stdio.h>
 #include <unistd.h>
 
+#include "hexdump.h"
 
+int main(int argc, char* argv[]){
+	
+
+}

Labs/Lab10/prelab.txt

@@ -2,4 +2,9 @@ Lindsay Knupp
 11/30/21
 Lab 10 - prelab.txt
 
+1 1 0  1 0 0  0 0 0
+push first three bits to the right hand side, shift by 6 bits
+so that it's the only thing in that number 
+
+1 1 0 & 1 0 0 or 0 1 0 or 0 0 1 to say which permission user has 
 

Labs/Lab9/Makefile

 CC = gcc -lreadline
 CFLAGS = -std=gnu99 -Wall -g #-DDEBUG
 
-EXECS = ishell
+EXECS = ishell maybeishell
 
 all: $(EXECS)
 
 ishell: ishell.c 
 	$(CC) $(CFLAGS) -o $@ $<  
 
+maybeishell: maybeishell.c
+	$(CC) $(CFLAGS) -o $@ $< 
+
 .PHONY: clean 
 clean: 
 	/bin/rm -f *.o $(EXECS) 

Labs/Lab9/ishell.c

@@ -34,60 +34,53 @@ int main (int argc, char *argv[]){
 
 	printf("ishell> ");
 
-	//parse user input and split into tokens 
+	line = NULL;
+
+	//get user input from terminal  
 	getline(&line,&length,stdin);
 	length = strlen(line);
-	line[length-1] = 0;	
+	line[length-1] = 0;
 	
-	for (int i=0;i<MAXCNT;i++){
-		tokens[i] = (char*) malloc(MAXLEN);	
-		tokens1[i] = (char*) malloc(MAXLEN);
-		tokens2[i] = (char*) malloc(MAXLEN);
-	}
-
 	int token_count = 0;
 	for (str = line; ; str = NULL){
 		token = strtok_r(str," ", &saveptr);
 		if(token_count >= MAXCNT || token == NULL){
 			break;
 		}
-		strcpy(tokens[token_count],token);
+		tokens[token_count] = token;		
 		token_count ++;
 	}
+	tokens[token_count] = NULL; 
 	
-	int command2 = 0;
-	for (int i = 0; i<MAXCNT; i++){
-		if(strcmp(tokens[i],";") == 0){
-			command2 = i;
-			break;
-		}
+	//int command2 = 0;
+	//for (int i = 0; i<MAXCNT; i++){
+	//	if(strcmp(tokens[i],";") == 0){
+	//		command2 = i;
+	//		break;
+	//	}
+	//}
 	
-	}
 	//printf("command index %d\n",command2);
 
-	if (command2 != 0){
-	for (int i = 0; i < command2;i++){
-		strcpy(tokens1[i],tokens[i]);
-	}
-	tokens1[command2] = NULL;	
+	//if (command2 != 0){
+	//for (int i = 0; i < command2;i++){
+	//	strcpy(tokens1[i],tokens[i]);
+	//}
+	//tokens1[command2] = NULL;	
 	
-	for (int i = command2;i<token_count;i++){
-		strcpy(tokens2[i],tokens[i]);
-	}
-	tokens2[token_count] = NULL;
+	//for (int i = command2;i<token_count;i++){
+	//	strcpy(tokens2[i],tokens[i]);
+	//}
+	//tokens2[token_count] = NULL;
 	
-	strcpy(path2, "/usr/bin/");
-	strcpy(path, "/usr/bin/");
-
-	strcat(path, tokens1[0]);
-	strcat(path, tokens2[0]);
+	//strcpy(path2, "/usr/bin/");
+	//strcpy(path, "/usr/bin/");
 
-
-	}
-
-	tokens[token_count] = NULL;
-	
+	//strcat(path, tokens1[0]);
+	//strcat(path, tokens2[0]);
+	//}	
 	
+	strcpy(path,"/usr/bin/");
 	strcat(path,tokens[0]);
 
 	free(line);
@@ -99,17 +92,13 @@ int main (int argc, char *argv[]){
 
 	// child branch 
 	if (pid  == 0){
-		if(command2 != 0){
-			execv(path,tokens1);
-			execv(path2,tokens2);
-		}
 		execv(path,tokens);
+	
 	}
 
 	// parent branch 
 	else {
-		wait(&status);
-		fflush(stdout);	
+		wait(&status);	
 		int es = WEXITSTATUS(status);
 		if (es == 0){
 			printf("[ishell: program terminated successfully]\n");
@@ -117,10 +106,6 @@ int main (int argc, char *argv[]){
 		else {
 			printf("[ishell: program terminated abnormally][%d]\n",es);
 		}
-		for (int i=0;i<token_count;i++){
-		free(tokens[i]);
-		}
-
 	}
 	}
 	return 0;