42sh/src/builtins/dot.c


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#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "builtins.h"
#include "utils/env.h"

int dot(struct string **args)
{
    if (args[0] == NULL)
    {
        fprintf(stderr, ".: filename argument required\n");
        fflush(stdout);
        return 2;
    }
    if (args[1] != NULL)
    {
        fprintf(stderr, ".: too many arguments\n");
        fflush(stdout);
        return 2;
    }

    FILE *file = fopen(args[0]->data, "r");
    if (file == NULL)
    {
        fprintf(stderr, ".: filename does not exist\n");
        fflush(stdout);
        return 1;
    }

    char line[1024];
    while (fgets(line, sizeof(line), file))
    {
        // TODO : execute file
        fputs(line, stdout);
    }
    fclose(file);
    fflush(stdout);
    return 0;
}