2 files changed, 60 insertions, 0 deletions
diff --git a/src/libc/stdio/fprintf.c b/src/libc/stdio/fprintf.c
new file mode 100644
index 0000000..cd2851c
--- /dev/null
+++ b/src/libc/stdio/fprintf.c
@@ -0,0 +1,32 @@
+#include <shared/printf.h>
+#include <stdio.h>
+
+static void backend_file(void *arg, const char *buf, size_t len) {
+	fwrite(buf, 1, len, arg);
+}
+
+int fprintf(FILE *restrict f, const char *restrict fmt, ...) {
+	int ret;
+	va_list argp;
+	va_start(argp, fmt);
+	ret = vfprintf(f, fmt, argp);
+	va_end(argp);
+	return ret;
+}
+
+int vfprintf(FILE *restrict f, const char *restrict fmt, va_list ap) {
+	return __printf_internal(fmt, ap, backend_file, f);
+}
+
+int printf(const char *restrict fmt, ...) {
+	int ret;
+	va_list argp;
+	va_start(argp, fmt);
+	ret = vprintf(fmt, argp);
+	va_end(argp);
+	return ret;
+}
+
+int vprintf(const char *restrict fmt, va_list ap) {
+	return vfprintf(stdout, fmt, ap);
+}
diff --git a/src/libc/stdio/sprintf.c b/src/libc/stdio/sprintf.c
new file mode 100644
index 0000000..0bfbb17
--- /dev/null
+++ b/src/libc/stdio/sprintf.c
@@ -0,0 +1,28 @@
+#include <camellia/syscalls.h>
+#include <shared/mem.h>
+#include <shared/printf.h>
+#include <stdio.h>
+
+int sprintf(char *restrict s, const char *restrict fmt, ...) {
+	int ret;
+	va_list argp;
+	va_start(argp, fmt);
+	ret = vsnprintf(s, ~0, fmt, argp);
+	va_end(argp);
+	return ret;
+}
+
+int vsprintf(char *restrict s, const char *restrict fmt, va_list ap) {
+	return vsnprintf(s, ~0, fmt, ap);
+}
+
+int _klogf(const char *fmt, ...) {
+	char buf[256];
+	int ret;
+	va_list argp;
+	va_start(argp, fmt);
+	ret = vsnprintf(buf, sizeof buf, fmt, argp);
+	va_end(argp);
+	_sys_debug_klog(buf, ret);
+	return ret;
+}