progs/shel/shel.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42

#include <unistd.h>
#include <stdlib.h>
#include <sys/wait.h>
#include <stdbool.h>
#include <string.h>

void parseInput(char *input, char *command, char *argv) {
    bool reachedArgv = false;
    char arg[32] = {0};
    int idx = 0;
    int argvIdx = 1;
    
    for (int i = 0; i < sizeof(input); i++)
    {
        if (reachedArgv) {
            arg[idx] = input[i];
            idx++;
            continue;
        }
        if (input[i] == ' ') {
            arg[idx] == '\0';
            strcpy(command, arg);
            reachedArgv = true;
            memset(arg, 0, sizeof(arg));
            idx++;
            continue;
        }
        arg[idx] = input[i];
        idx++;
    }
    
}

int main() {
    char input[255] = {0};
    char command[128] = {0};
    char *argv[32] = {0};
    char *env[32] = {"PATH=/bin"};
    char path[128] = "/";

    parseInput(input, command, argv);
}