Implemented stdlib.h

libc/include/stdlib.h

@@ -3,7 +3,28 @@
 
 #include <stddef.h>
 
-void* malloc(const size_t size);
-void free(const void* ptr);
+#define EXIT_SUCCESS 0
+#define EXIT_FAILURE 1
+#define RAND_MAX     0x7FFFFFF
+
+/* Memory allocation */
+void* malloc(size_t size);
+void* calloc(size_t count, size_t size);
+void* realloc(void* ptr, size_t size);
+void free(void* ptr);
+
+/* Process controll */
+void _Exit(int status);
+void exit(int status);
+
+// TODO: move atoi() here
+
+/* Random number generator */
+int rand(void);
+void srand(unsigned int seed);
+
+/* Sort & search */
+void qsort(void* base, size_t nmemb, size_t size, int (*compar)(const void*, const void*));
+void* bsearch(const void* key, const void* base, size_t nmemb, size_t size, int (*compar)(const void*, const void*));
 
 #endif

libc/include/syscall.h

@@ -17,16 +17,6 @@ typedef enum {
     SYS_SLEEP,
 } SYSCALL_NUMBERS;
 
-typedef enum {
-    O_CREAT     = 0x01,  // Create if does not exist
-    O_RDONLY    = 0x02,  // Read only
-    O_WRONLY    = 0x04,  // Write only
-    O_RDWR      = 0x08,  // Read and write
-    O_APPEND    = 0x10, // Always writes at the end (appends)
-    O_TRUNC     = 0x20, // Truncate file size and position to 0 on Open
-    O_BIN       = 0x40, // Read bytes, not text
-} OFLAGS;
-
 int syscall(int nr, int arg0, int arg1, int arg2);
 
 /* Syscall wrappers */