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authormidipix <writeonce@midipix.org>2015-12-14 01:58:21 -0500
committermidipix <writeonce@midipix.org>2015-12-14 01:58:21 -0500
commitf4603994a39431c8cee036216a6d15ab7281b0c6 (patch)
tree8fc779f0c3ec5e8f0041c89b1700ffd2120f6b42 /src/logic
parent668af644e512cc911a32a955078866d9151bae80 (diff)
downloadsofort-f4603994a39431c8cee036216a6d15ab7281b0c6.tar.bz2
sofort-f4603994a39431c8cee036216a6d15ab7281b0c6.tar.xz
initial commit.
Diffstat (limited to 'src/logic')
-rw-r--r--src/logic/sfrt_map_input.c45
1 files changed, 45 insertions, 0 deletions
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);
+}