143 lines
3.1 KiB
C
143 lines
3.1 KiB
C
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/types.h>
|
|
#include <dirent.h>
|
|
#include <unistd.h>
|
|
#include <grp.h>
|
|
#include <pwd.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
#define BUFFERSIZE 255
|
|
#define BLU "\x1B[34m"
|
|
#define GRN "\x1B[32m"
|
|
#define YEL "\x1B[33m"
|
|
#define RESET "\x1B[0m"
|
|
|
|
void help(){
|
|
printf(BLU " Krystian Janowicz \n Available commands: \n echo [arg] \n pwd \n cd [arg] \n clear \n date \n help \n exit \n ls \n" RESET);
|
|
}
|
|
|
|
void clear(){
|
|
printf("\033[H\033[J");
|
|
}
|
|
|
|
void pwd(){
|
|
char path[BUFFERSIZE];
|
|
getcwd(path,BUFFERSIZE);
|
|
printf(GRN " %s" RESET,path);
|
|
}
|
|
|
|
void date(){
|
|
time_t t = time(NULL);
|
|
struct tm *tm = localtime(&t);
|
|
char s[64];
|
|
strftime(s, sizeof(s), "%c", tm);
|
|
printf("%s\n", s);
|
|
}
|
|
|
|
void prompt(){
|
|
char *user;
|
|
char *path;
|
|
char hostname[BUFFERSIZE];
|
|
|
|
user = getenv( "USER" );
|
|
memset(hostname, 0, BUFFERSIZE);
|
|
gethostname(hostname, BUFFERSIZE);
|
|
printf(YEL "%s@" RESET, user);
|
|
printf(YEL "%s" RESET, hostname);
|
|
pwd();
|
|
printf(" $ ");
|
|
}
|
|
|
|
int echo(char command[BUFFERSIZE]){
|
|
char *checkThatSign = " ";
|
|
int lenght=strlen(command);
|
|
for(int i=0;i<=lenght-1; i++){
|
|
|
|
char temp;
|
|
temp=command[i];
|
|
|
|
if(temp==' '){
|
|
char *rest = strpbrk(command, checkThatSign);
|
|
printf("%s", rest);
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
int exxit(char command[BUFFERSIZE]){
|
|
|
|
char *checkThatSign = " ";
|
|
int lenght=strlen(command);
|
|
char temp;
|
|
|
|
for(int i=0;i<=lenght-1; i++){
|
|
|
|
temp=command[i];
|
|
|
|
if(temp==' '){
|
|
return command[i+1]-48;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void cd(char command[BUFFERSIZE]){
|
|
char *temp;
|
|
temp = strchr(command,' ');
|
|
|
|
temp = temp+1;
|
|
char *locationOfNewLine = strchr(temp, '\n');
|
|
if(locationOfNewLine) {
|
|
*locationOfNewLine = '\0';
|
|
}
|
|
chdir(temp);
|
|
}
|
|
|
|
void ls(char *name) {
|
|
DIR *dir;
|
|
struct dirent *dp;
|
|
struct stat statbuf;
|
|
|
|
if ((dir = opendir(name)) == NULL) {
|
|
perror("Blad");
|
|
}
|
|
while ((dp = readdir(dir)) != NULL) {
|
|
if (stat(dp->d_name, &statbuf) == -1) continue;
|
|
if (dp->d_name[0] == '.') continue;
|
|
|
|
printf( "%s ", dp->d_name);
|
|
}
|
|
closedir(dir);
|
|
}
|
|
|
|
int main() {
|
|
|
|
char command[BUFFERSIZE];
|
|
|
|
do{
|
|
prompt();
|
|
bzero(command, BUFFERSIZE);
|
|
fgets(command, BUFFERSIZE, stdin);
|
|
|
|
if (strcmp(command, "help\n") == 0){ help(); }
|
|
else if (strcmp(command, "ls\n") == 0){
|
|
ls(".");
|
|
printf("\n");
|
|
}
|
|
else if (strcmp(command, "pwd\n") == 0){
|
|
pwd();
|
|
printf("\n");
|
|
}
|
|
else if (strcmp(command, "date\n") == 0){ date(); }
|
|
else if (strcmp(command, "clear\n") == 0){ clear(); }
|
|
else if((command[0]=='c') && (command[1]=='d')) { cd(command); }
|
|
else if ((command[0]=='e') && (command[1]=='c') && (command[2]=='h') && (command[3]=='o')){ echo(command); }
|
|
else if ((command[0]=='e') && (command[1]=='x') && (command[2]=='i') && (command[3]=='t')){ return exxit(command); }
|
|
else{ printf ("ERROR: didn't found that command, try 'help' \n" ) ; }
|
|
|
|
}while(1);
|
|
|
|
}
|