my cp cudzyslow showtree

Microshell/katalogz/plik1.txt

@@ -1 +1,2 @@
-hdhd
+To jest plik1.txt
+jajajajaj

Microshell/microshell.c

@@ -9,6 +9,7 @@
 #include <pwd.h>
 #include <readline/readline.h>
 #include <readline/history.h>
+#include <fcntl.h>
 
 const int max = 1000;
 
@@ -24,6 +25,15 @@ void cut(char **argv, char *command){
 	argv[w]=NULL;
 }
 
+void rmChar(char *str, char garbage) {   /*przesledzic jak to dziala!!!!! w opisie sobie napisac*/
+    char *src, *dst;
+    for (src = dst = str; *src != '\0'; src++) {
+        *dst = *src;
+        if (*dst != garbage) dst++;
+    }
+    *dst = '\0';
+}
+
 void cd (char **argv){
 	if(argv[1] == NULL){
 		printf("Add arguments\n");
@@ -94,17 +104,20 @@ void tree (char **argv, char * directory){
 		printf("Too many arguments\nshowtree takes no arguments \nor exacly 1 argument for desired directory\n");
 		return;
 	}
-	else if (argv[1] != NULL && argv[2] == NULL){
-		printf("Dokladnie 1 arg\n");
-		return;
-	}
 	else{
 		if (fork() == 0){
 			DIR *d;
 			struct dirent *ent;
 			char ndr[max];
 			int tab = 0;
+
+			if (argv[1] != NULL && argv[2] == NULL){ /*jeden argument*/
+				cd(argv);
+				getcwd(ndr, sizeof(ndr));
+			}
+			else
 				strcpy(ndr, directory);
+			printf("Content of: %s\n", ndr);
 
 			if ((d = opendir(ndr)) != NULL){ /*wchodzimy do katalogu*/
 				while ((ent = readdir(d)) != NULL){ /*czytamy zawartosc*/
@@ -140,8 +153,43 @@ void tree (char **argv, char * directory){
 	}
 }
 
+void mycp (char **argv){
+	if (argv[1] == NULL || argv[2] == NULL){
+		printf("Add arguments\n");
+		return;
+	}
+	else if (argv[3] != NULL){
+		printf("Too many arguments\n");
+		return;
+	}
+	else{
+		int file1 = open(argv[1], O_RDONLY);
+		if (file1 == -1){
+			perror("open error");
+			return;
+		}
+		if (open(argv[2], O_RDONLY) != -1){
+			printf("%s already exists!\n", argv[2]);
+			return;
+		}
+		int newfile = creat(argv[2], 0666);
+		if (newfile == -1){
+			perror("create error");
+			return;
+		}
+
+		char bufor[1024];
+		int r;
+		while ((r = read(file1, bufor, sizeof(bufor))) > 0)
+			write(newfile, bufor, r);
+
+		close(file1);
+		close(newfile);
+	}
+}
+
 int main (){
-	int spath = 1;
+	int spath = 1, i=0;
 	using_history();
 	struct passwd *p = getpwuid(getuid());
 
@@ -176,6 +224,11 @@ int main (){
 
 		add_history(komenda);
 		cut(argv, komenda);
+		while (argv[i] != NULL){
+			rmChar(argv[i], 34);
+			i+=1;
+		}
+		i=0;
 
 		if (argv[0]==NULL)
 			continue;
@@ -195,6 +248,10 @@ int main (){
 			tree(argv, directory);
 			continue;
 		}
+		else if (!strcmp(argv[0], "mycp")){
+			mycp(argv);
+			continue;
+		}
 		else if (!strcmp(argv[0], "exit"))
 			break;
 		else