refactor

1 files changed, 30 insertions, 0 deletions

diff --git a/command/whoami.c b/command/whoami.c
new file mode 100644
index 0000000..5823b8f
--- /dev/null
+++ b/command/whoami.c
@@ -0,0 +1,30 @@
+#include "command.h"
+#include "lslib.h"
+
+#include <pwd.h>
+#include <stdlib.h>
+#include <unistd.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) {
+
+    uid_t usr;
+    struct passwd* passwd;
+
+    parse_help(argc, argv, help);
+
+    usr = getuid();
+    passwd = getpwuid(usr);
+    
+    if (passwd == NULL) {
+        printf("\x1b[1;91myou do not exist.\n");
+    } else {
+        printf("%s\n", passwd->pw_name);
+    }
+    return EXIT_SUCCESS;
+}