MUCH work in libc

Also cleaned up some syscalls etc

1 files changed, 46 insertions, 0 deletions

diff --git a/src/userspace/libc/stdio/vprintf.c b/src/userspace/libc/stdio/vprintf.c
new file mode 100644
index 0000000..dc5ed23
--- /dev/null
+++ b/src/userspace/libc/stdio/vprintf.c
@@ -0,0 +1,46 @@
+#include <stdint.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+void vprintf(char *fmt, va_list args)
+{
+	u8 readyToFormat = 0;
+
+	char buff = 0;
+
+	for (; *fmt; fmt++) {
+		if (readyToFormat) {
+			if (*fmt == '%') {
+				putch('%');
+				readyToFormat = 0;
+				continue;
+			}
+
+			buff = *fmt;
+			if (buff == 's') {
+				char *str = va_arg(args, char *);
+				puts(str);
+				readyToFormat = 0;
+			} else if (buff == 'x') {
+				char *p = htoa((u32)va_arg(args, int));
+				puts(p);
+				free(p);
+				readyToFormat = 0;
+			} else if (buff == 'd') {
+				char *p = itoa(va_arg(args, int));
+				puts(p);
+				free(p);
+				readyToFormat = 0;
+			} else if (buff == 'c') {
+				putch((char)va_arg(args, int));
+				readyToFormat = 0;
+			}
+		} else {
+			if (*fmt == '%')
+				readyToFormat = 1;
+			else
+				putch(*fmt);
+		}
+	}
+}
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