MUCH work in libc

Also cleaned up some syscalls etc

1 files changed, 24 insertions, 0 deletions

diff --git a/src/userspace/libc/stdlib/htoi.c b/src/userspace/libc/stdlib/htoi.c
new file mode 100644
index 0000000..cf79b7a
--- /dev/null
+++ b/src/userspace/libc/stdlib/htoi.c
@@ -0,0 +1,24 @@
+#include <stdint.h>
+#include <stddef.h>
+#include <math.h>
+#include <string.h>
+
+int htoi(char *str)
+{
+	u8 s_str = strlen(str);
+
+	u8 i = 0;
+	int ret = 0;
+	for (; i < s_str; i++) {
+		char c = str[i];
+		int aux = 0;
+		if (c >= '0' && c <= '9')
+			aux = c - '0';
+		else if (c >= 'A' && c <= 'F')
+			aux = (c - 'A') + 10;
+
+		ret += aux * pow(16, (int)((s_str - i) - 1));
+	}
+
+	return ret;
+}
\ No newline at end of file