X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Usermode%2FLibraries%2Flibc.so_src%2Fstdlib.c;h=191f5261bd7d588e5e711670941b59fe39ccf682;hb=71b1271511ad01f042d2e51673dd57cce1b0fd9c;hp=f5acadbd215a5c0074c0048e0276652b01d98a05;hpb=91dd38c34820c03311738439125675d59bf9e3f1;p=tpg%2Facess2.git

diff --git a/Usermode/Libraries/libc.so_src/stdlib.c b/Usermode/Libraries/libc.so_src/stdlib.c
index f5acadbd..191f5261 100644
--- a/Usermode/Libraries/libc.so_src/stdlib.c
+++ b/Usermode/Libraries/libc.so_src/stdlib.c
@@ -13,24 +13,67 @@
 #define _stdout	1
 #define _stdin	0
 
-// === IMPORTS ===
-extern int	fprintfv(FILE *fp, const char *format, va_list args);
+extern void	*_crt0_exit_handler;
 
 // === PROTOTYPES ===
 EXPORT int	atoi(const char *str);
 EXPORT void	exit(int status);
 
+// === GLOBALS ===
+void	(*g_stdlib_exithandler)(void);
+
 // === CODE ===
+void atexit(void (*__func)(void))
+{
+	g_stdlib_exithandler = __func;
+	// TODO: Replace with meta-function to allow multiple atexit() handlers
+	_crt0_exit_handler = __func;	
+}
+
 /**
  * \fn EXPORT void exit(int status)
  * \brief Exit
  */
 EXPORT void exit(int status)
 {
+	if( g_stdlib_exithandler )
+		g_stdlib_exithandler();
 	_exit(status);
 }
 
 /**
+ * \fn EXPORT void qsort(void *base, size_t nmemb, size_t size, int(*compar)(const void *, const void *))
+ * \brief Sort an array
+ * \note Uses a selection sort
+ */
+EXPORT void qsort(void *base, size_t nmemb, size_t size, int(*compar)(const void *, const void *))
+{
+	 int	i, j, min;
+	// With 0 items, there's nothing to do and with 1 its already sorted
+	if(nmemb == 0 || nmemb == 1)	return;
+	
+	// SORT!
+	for( i = 0; i < (nmemb-1); i++ )
+	{
+		min = i;
+		for( j = i+1; j < nmemb; j++ )
+		{
+			if(compar(base+size*j, base + size*min) < 0) {
+				min = j;
+			}
+		}
+		if (i != min) {
+			char	swap[size];
+			memcpy(swap, base+size*i, size);
+			memcpy(base+size*i, base+size*min, size);
+			memcpy(base+size*i, swap, size);
+		}
+	}
+}
+
+/**
+ * \fn EXPORT int atoi(const char *str)
+ * \brief Convert a string to an integer
  */
 EXPORT int atoi(const char *str)
 {