microshell

This commit is contained in:
Jakub Adamski 2019-01-10 12:56:56 +01:00
parent a891e88afe
commit 3073884260
2 changed files with 72 additions and 0 deletions

4
Microshell/Makefile Normal file
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microshell: microshell.c
gcc -Wall -ansi -o microshell microshell.c
clean:
rm microshell

68
Microshell/microshell.c Normal file
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#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
const int max = 1000;
int cut(char **argv, char *command){
int i=0;
return i;
}
int main (){
while (1){
char komenda[max], directory[max];
if (getcwd(directory, sizeof(directory)) == NULL){
perror("getcwd() error");
return 1;
}
printf("[%s]$ ", directory);
fgets(komenda, max, stdin);
if (!strcmp(komenda, "exit\n"))
break;
else{
int i = 0, z, w = 0, x = 0;
char polecenie[100], argument[100];
char* argv[100];
while (1){
if(komenda[i] == 10){
argv[w] = NULL;
execvp(polecenie, argv);
break;
}
else if (komenda[i] == 32){
i+=1;
x=0;
continue;
}
else if(w==0){
w=1;
while(komenda[i] != 32 && komenda[i]!=10){
polecenie[x]=komenda[i];
i+=1;
x+=1;
}
polecenie[x] = '\0';
printf("%s\n", polecenie);
argv[w-1]=malloc(x+1 * sizeof(char));
strcpy(argv[w-1], polecenie);
continue;
}
else{
while(komenda[i] != 32 && komenda[i]!=10){
argument[x]=komenda[i];
x+=1;
i+=1;
}
argument[x] = '\0';
argv[w]=malloc(x+1 * sizeof(char));
strcpy(argv[w], argument);
w+=1;
}
}
}
}
return 0;
}