From a492c6ec119bd1151a6f2f7b70875ba173e9c036 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Sun, 3 Sep 2023 01:30:53 +0200
Subject: libc: split up large .c files, slimming down small binaries a bit

---
 src/libc/stdio/fprintf.c | 32 ++++++++++++++++++++++++++++++++
 src/libc/stdio/sprintf.c | 28 ++++++++++++++++++++++++++++
 2 files changed, 60 insertions(+)
 create mode 100644 src/libc/stdio/fprintf.c
 create mode 100644 src/libc/stdio/sprintf.c

(limited to 'src/libc/stdio')

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;
+}
-- 
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