lazysphere/src/commands/whoami.c

#include "../command.h"

#include <pwd.h>

static void help(void) {
    printf("Usage: whoami\n\n");
    printf("Print the username associated with the current effective user id\n");
    exit(EXIT_SUCCESS);
}

COMMAND(whoami) {
    parse_help(argc, argv, help);

    uid_t usr = getuid();
    struct passwd* passwd = getpwuid(usr);
    if (passwd == NULL) {
        printf("\x1b[1;91myou do not exist.\n");
    } else {
        printf("%s\n", passwd->pw_name);
    }
    return EXIT_SUCCESS;
}