151 lines
3.1 KiB
C
151 lines
3.1 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <unistd.h>
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#include <grp.h>
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#include <pwd.h>
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#include <string.h>
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#include <time.h>
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#define BUFFERSIZE 255
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#define BLU "\x1B[34m"
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#define GRN "\x1B[32m"
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#define YEL "\x1B[33m"
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#define RESET "\x1B[0m"
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void help(){
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printf(BLU " Krystian Janowicz \n Dostepne polecenia: \n echo [arg] \n pwd \n help \n exit \n ls \n" RESET);
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}
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void pwd(){
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char path[BUFFERSIZE];
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getcwd(path,BUFFERSIZE);
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printf(GRN " %s" RESET,path);
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}
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void prompt(){
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char *user;
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char *path;
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char hostname[BUFFERSIZE];
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user = getenv( "USER" );
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memset(hostname, 0, BUFFERSIZE);
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gethostname(hostname, BUFFERSIZE);
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printf(YEL "%s@" RESET, user);
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printf(YEL "%s" RESET, hostname);
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pwd();
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printf(" $ ");
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}
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int echo(char komenda[BUFFERSIZE]){
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char *sprawdzczy = " ";
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int dlugosc=strlen(komenda);
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for(int i=0;i<=dlugosc-1; i++){
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char temp;
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temp=komenda[i];
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if(temp==' '){
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char *reszta = strpbrk(komenda, sprawdzczy);
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printf("%s", reszta);
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return 0;
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}
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}
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}
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int exxit(char komenda[BUFFERSIZE]){
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char *sprawdzczy = " ";
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int dlugosc=strlen(komenda);
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for(int i=0;i<=dlugosc-1; i++)
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{
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char temp;
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temp=komenda[i];
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char *sprawdzczy = " ";
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if(temp==' '){
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char *reszta = strpbrk(komenda, sprawdzczy);
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int dlugoscReszty=strlen(reszta)-1;
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printf("%d\n", dlugoscReszty);
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int zwrocik=reszta[1];
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return zwrocik-48; // -48 bo ASCII, nie wiedzialem jak to przekonwertowac "normalnie"
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}
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}
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return 0;
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}
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void cd(char komenda[BUFFERSIZE]){
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char *tok;
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tok = strchr(komenda,' ');
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char *tempTok = tok + 1;
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tok = tempTok;
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char *locationOfNewLine = strchr(tok, '\n');
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if(locationOfNewLine) {
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*locationOfNewLine = '\0';
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}
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chdir(tok);
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}
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void list_dir(char *name) {
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DIR *dir;
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struct dirent *dp;
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struct stat statbuf;
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if ((dir = opendir(name)) == NULL) {
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perror("Blad");
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}
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while ((dp = readdir(dir)) != NULL) {
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if (stat(dp->d_name, &statbuf) == -1) continue;
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if (dp->d_name[0] == '.') continue;
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printf( "%s ", dp->d_name);
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}
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closedir(dir);
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}
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int main(int argc, char **argv) {
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char komenda[BUFFERSIZE];
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do{
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prompt();
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bzero(komenda, BUFFERSIZE);
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fgets(komenda, BUFFERSIZE, stdin);
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if (strcmp(komenda, "help\n") == 0){
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help();
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}
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else if (strcmp(komenda, "ls\n") == 0){
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chdir(*(++argv));
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list_dir(".");
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printf("\n");
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}
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else if (strcmp(komenda, "pwd\n") == 0){
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pwd() ;
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printf("\n");
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}
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else if((komenda[0]=='c') && (komenda[1]=='d')) {
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cd(komenda);
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}else if ((komenda[0]=='e') && (komenda[1]=='c') && (komenda[2]=='h') && (komenda[3]=='o')){
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echo(komenda);
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}
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else if ((komenda[0]=='e') && (komenda[1]=='x') && (komenda[2]=='i') && (komenda[3]=='t')){
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int zwrot=exxit(komenda);
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return zwrot;
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}
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else{
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printf ("nie znaleziono polecenia. uzyj: help \n" ) ;
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}
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}while(1);
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}
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