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-rw-r--r--writef.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/writef.c b/writef.c
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+/*
+ * Copyright (c) 2026 Nakidai Perumenei <nakidai at disroot dot org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "ircd.h"
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <unistd.h>
+
+
+int
+writef(int fd, const char *fmt, ...)
+{
+	static char buf[MESSAGE_MAX + 1];
+	va_list args;
+	int written;
+
+	va_start(args, fmt);
+	written = vsnprintf(buf, sizeof(buf) - 2, fmt, args);
+	va_end(args);
+	written = written < sizeof(buf) - 2 ? written : sizeof(buf) - 2;
+	memcpy(buf + written, "\r\n", 3);
+
+	return write(fd, buf, written + 3);
+}