From 52306a7f6ac1dd89a0dad17024db222dd36e80a9 Mon Sep 17 00:00:00 2001
From: Tom Ryder <tom@sanctum.geek.nz>
Date: Thu, 17 Mar 2016 23:54:19 +1300
Subject: Wrote whoami(1)

---
 .gitignore |  1 +
 Makefile   |  7 +++++--
 whoami.c   | 14 ++++++++++++++
 whoami.h   | 10 ++++++++++
 4 files changed, 30 insertions(+), 2 deletions(-)
 create mode 100644 whoami.c
 create mode 100644 whoami.h

diff --git a/.gitignore b/.gitignore
index 4951cbe..a3a035a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 ls
 pwd
 sort
+whoami
diff --git a/Makefile b/Makefile
index eacea17..a93df43 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@
 CC = clang
 CFLAGS = -std=c90 -Weverything
 
-all : ls pwd sort
+all : ls pwd sort whoami
 
 ls : ls.c ls.h
 	$(CC) $(CFLAGS) ls.c -o ls
@@ -14,7 +14,10 @@ pwd : pwd.c pwd.h
 sort : sort.c sort.h
 	$(CC) $(CFLAGS) sort.c -o sort
 
+whoami : whoami.c whoami.h
+	$(CC) $(CFLAGS) whoami.c -o whoami
+
 clean :
 	rm -f -- *.o
-	rm -f ls pwd sort
+	rm -f ls pwd sort whoami
 
diff --git a/whoami.c b/whoami.c
new file mode 100644
index 0000000..b692abe
--- /dev/null
+++ b/whoami.c
@@ -0,0 +1,14 @@
+#include "whoami.h"
+
+int main(void) {
+    struct passwd *p;
+
+    if ((p = getpwuid(getuid())) == NULL) {
+        exit(EXIT_FAILURE);
+    }
+
+    printf("%s\n", p->pw_name);
+
+    exit(EXIT_SUCCESS);
+}
+
diff --git a/whoami.h b/whoami.h
new file mode 100644
index 0000000..f61a04c
--- /dev/null
+++ b/whoami.h
@@ -0,0 +1,10 @@
+#ifndef __WHOAMI_H
+
+#include <pwd.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+
+#endif
+
-- 
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