From 4091148d2e1c58b9ab6b05a544418fc1de4dedff Mon Sep 17 00:00:00 2001
From: Gitea <gitea@fake.local>
Date: Tue, 1 Dec 2020 20:59:33 -0600
Subject: [PATCH] Very basic "init"

---
 arch/i386/init.c      | 106 ++++++++++++++++++++++++++++++++++++++++++
 include/kernel/init.h |   9 ++++
 2 files changed, 115 insertions(+)
 create mode 100755 arch/i386/init.c
 create mode 100755 include/kernel/init.h

diff --git a/arch/i386/init.c b/arch/i386/init.c
new file mode 100755
index 0000000..454e159
--- /dev/null
+++ b/arch/i386/init.c
@@ -0,0 +1,106 @@
+#include <kernel/init.h>
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+int test_libc(void) {
+  int failed = 0;
+
+  printf("==Testing stdio.h==\n");
+
+  printf("printf(\"%%d\", 10): %d (expected 10)\n", 10);
+  printf("printf(\"%%d\", -10): %d (expected -10)\n", -10);
+  printf("printf(\"%%i\", 10): %d (expected 10)\n", 10);
+  printf("printf(\"%%o\", 014): %o (expected 14)\n", 014);
+  printf("printf(\"%%o\", 14): %o (expected 16)\n", 14);
+  printf("printf(\"%%u\", 10): %u (expected 10)\n", 10);
+  printf("printf(\"%%x\", 0xC9A): %x (expected c9a)\n", 0xC9A);
+  printf("printf(\"%%x\", 26): %x (expected 1a)\n", 26);
+  printf("printf(\"%%X\", 0xC9A): %x (expected C9A)\n", 0xC9A);
+  printf("printf(\"%%p\", &i): %p (expected 0x[hex])\n", &failed);
+  printf("printf(\"%%n\"): %n (expected 14)\n");
+  
+  printf("==Testing math.h==\n");
+  if(cos(0) == 1.0) {
+    printf("[");
+    /* I want the status to be coloured. How do I do that? */
+    printf("OK");
+    printf("] cos()\n");
+  }
+  else {
+    printf("[");
+    printf("FAIL");
+    printf("] cos()\n");
+    failed++;
+  }
+
+  if(fabs(-2.3) == 2.3) {
+    printf("[");
+    printf("OK");
+    printf("] fabs()\n");
+  }
+  else {
+    printf("[");
+    printf("FAIL");
+    printf("] fabs()\n");
+    failed++;
+  }
+
+  printf("==Testing time.h==\n");
+  printf("time(0): Current UNIX time: %d\n", time(0));
+
+  printf("==Testing stdlib.h==\n");
+
+  if(abs(-5) == 5) {
+    printf("[");
+    printf("OK");
+    printf("] abs()\n");
+  }
+  else {
+    printf("[");
+    printf("FAIL");
+    printf("] abs(); expected 5, got %d\n", abs(-5));
+    failed++;
+  }
+
+  srand(time(0));
+  int rand_test = rand();
+  printf("rand() output with seed time(0): %d\n", rand_test);
+
+  printf("==Testing string.h==\n");
+
+  if(strcmp("Hi", "Hi") == 0 && strcmp("Hi", "Hello") != 0) {
+    printf("[");
+    printf("OK");
+    printf("] strcmp()\n");
+  }
+  else {
+    printf("[");
+    printf("FAIL");
+    printf("] strcmp()\n");
+    failed++;
+  }
+
+  if(strcspn("Hello!", "!e") == 1) {
+    printf("[");
+    printf("OK");
+    printf("] strcspn()\n");
+  }
+  else {
+    printf("[");
+    printf("FAIL");
+    printf("] strcspn(); expected 1, got %d\n", strcspn("Hello!", "!e"));
+    failed++;
+  }
+
+  printf("Tests failed: %d\n", failed);
+  printf("One final test: If you can see this, the TTY can scroll.");
+
+  return failed;
+}
+
+int init(void) {
+  printf("Fenix Dev Pre-release v0.0.3\n");
+  return test_libc();
+}
diff --git a/include/kernel/init.h b/include/kernel/init.h
new file mode 100755
index 0000000..b411cd7
--- /dev/null
+++ b/include/kernel/init.h
@@ -0,0 +1,9 @@
+#ifndef _KERNEL_INIT
+#define _KERNEL_INIT
+
+#include <stdio.h>
+
+int test_libc(void);
+int init(void);
+
+#endif