From f4603994a39431c8cee036216a6d15ab7281b0c6 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Mon, 14 Dec 2015 01:58:21 -0500
Subject: initial commit.

---
 src/logic/sfrt_map_input.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 src/logic/sfrt_map_input.c

(limited to 'src/logic')

diff --git a/src/logic/sfrt_map_input.c b/src/logic/sfrt_map_input.c
new file mode 100644
index 0000000..74fbdb5
--- /dev/null
+++ b/src/logic/sfrt_map_input.c
@@ -0,0 +1,45 @@
+#include <stdint.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <sofort/sofort.h>
+
+int sfrt_map_input(
+	int			fd,
+	const char *		path,
+	int			prot,
+	struct sfrt_input *	map)
+{
+	struct stat	stat;
+	bool		fnew;
+	int		ret;
+
+	if ((fnew = (fd < 0)))
+		fd  = open(path,O_RDONLY | O_CLOEXEC);
+
+	if (fd < 0)
+		return -1;
+
+	if ((ret = fstat(fd,&stat) < 0) && fnew)
+		close(fd);
+
+	if (ret < 0)
+		return -1;
+
+	map->size = stat.st_size;
+	map->addr = mmap(0,map->size,prot,MAP_PRIVATE,fd,0);
+
+	if (fnew)
+		close(fd);
+
+	return (map->addr == MAP_FAILED) ? -1 : 0;
+}
+
+int sfrt_unmap_input(struct sfrt_input * map)
+{
+	return munmap(map->addr,map->size);
+}
-- 
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