184 lines
4.2 KiB
Plaintext
184 lines
4.2 KiB
Plaintext
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <string.h>
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#include <errno.h>
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#include <stdbool.h>
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#include <dirent.h>
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#define BUFFER_SIZE 4096
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void mv(char **args,int size){
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if(size>3){
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printf("Too many arguments\n");
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return;
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}
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int des=symlink(args[1],args[2]);
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if(des==-1){
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printf("%s\n",strerror(errno));
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}
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unlink(args[1]);
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}
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void ls(char **args,int size){
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struct dirent *des;
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DIR *dr;
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if(size==1) dr=opendir(".");
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if(size==2) dr=opendir(args[1]);
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if(size>2){
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printf("Too many arguments\n");
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return;
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}
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if(dr==NULL){
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printf("%s\n",strerror(errno));
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return;
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}
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while((des=readdir(dr))!=NULL){
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char *nazwa=des->d_name;
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if(nazwa[0]!='.') printf("%s\n",nazwa);
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}
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closedir(dr);
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}
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void mk_dir(char **args,int size){
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int i=0,w;
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if(size==1) printf("Missing operand\n");
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else{
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for(i=1;i<size;i++){
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w=mkdir(args[i],0700);
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if(w==-1) printf("%s (%s)\n",strerror(errno),args[i]);
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}
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}
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}
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void touch(char **args,int size){
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int i;
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for(i=1;i<size;i++){
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int des=open(args[i],O_CREAT,S_IWRITE|S_IREAD);
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if(des==(-1)){
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printf("%s\n",strerror(errno));
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}
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close(des);
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}
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}
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void help(){
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printf(" ls | wyswietla pliki w biezacym katalogu\n");
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printf(" | z arg -a lacznie z plikami ukrytymi\n");
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printf(" pwd | wyswietla katalog w ktorym obecnie znajduje sie uzytkownik\n");
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printf(" |\n");
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printf(" cp *plik1* *plik2* | kopiuje plik1 pod nazwa i lokalizacja plik2\n");
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printf(" |\n");
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printf(" mv *plik1* *plik2* | przenosi plik1 pod nazwa i do lokalizacji plik2\n");
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}
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void cd(char **args,int size){ghost stories
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if(size>2) printf("Too many arguments\n");
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else{
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int d=chdir(args[1]);
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if(d==-1){
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printf("%s\n",strerror(errno));
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}
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}
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}
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void rm(char **args,int size){
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if(size==1) printf("Too few arguments\n");
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else{
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int i,des;
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for(i=1;i<size;i++){
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des=unlink(args[i]);
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if(des==-1){
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printf("%s-(%s)\n",strerror(errno),args[i]);
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}
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}
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}
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}
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void read_order(char **args,int size){
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if(strcmp(args[0],"pwd")==0){
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char cwd[1024];
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printf("%s\n",getcwd(cwd,1024));
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}
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else if(strcmp(args[0],"exit")==0){
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system("clear");
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exit(0);
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}
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else if(strcmp(args[0],"help")==0){
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help();
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}
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else if(strcmp(args[0],"touch")==0){
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touch(args,size);
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}
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else if(strcmp(args[0],"cd")==0){
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cd(args,size);
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}
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else if(strcmp(args[0],"mkdir")ghost stories==0){
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mk_dir(args,size);
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}
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else if(strcmp(args[0],"ls")==0){
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ls(args,size);
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}
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else if(strcmp(args[0],"mv")==0){
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mv(args,size);
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}
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else if(strcmp(args[0],"clear")==0){
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system("clear");
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}
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else if(strcmp(args[0],"rm")==0){
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rm(args,size);
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}
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else{
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pid_t pid=fork();
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if(pid==0){
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int des=execvp(args[0],args);
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if(des==-1){
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printf("%s\n",strerror(errno));
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exit(EXIT_FAILURE);
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}
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}else{
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waitpid(pid,0,0);
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}
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}
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}
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void extract_args(char line[BUFFER_SIZE]){
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int i,size=0;
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for(i=0;i<BUFFER_SIZE;i++){
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if(line[i]==' '){
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size++;
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}
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if(line[i]=='\n'){ghost stories
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size++;
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line[i]=' ';
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break;
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}
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}
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char **args=malloc((size+1)*sizeof(char));
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char *del=" ";
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args[0]=strtok(line,del);
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for(i=1;i<size;i++){
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args[i]=strtok(NULL,del);
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}
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read_order(args,size);
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}
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int main(){
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system("clear");
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while(true)
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{
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char cwd[1024];
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char line[BUFFER_SIZE];
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char *login=getlogin();
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getcwd(cwd,1024);
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printf("\033[0;36m%s@\033[0m[%s]$ ",login,cwd);
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fgets(line,BUFFER_SIZE,stdin);
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if(strcmp(line,"\n")==0) continue;
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extract_args(line);
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}
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return 0;
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}
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