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-rw-r--r--usr/klibc/shm_open.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/usr/klibc/shm_open.c b/usr/klibc/shm_open.c
new file mode 100644
index 0000000..a54e246
--- /dev/null
+++ b/usr/klibc/shm_open.c
@@ -0,0 +1,23 @@
+/*
+ * shm_open.c
+ *
+ * POSIX shared memory support
+ */
+
+#include <stdlib.h>
+#include <alloca.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+
+int shm_open(const char *path, int oflag, mode_t mode)
+{
+ int len = strlen(path);
+ char *pathbuf = alloca(len+10);
+
+ memcpy(pathbuf, "/dev/shm/", 9);
+ memcpy(pathbuf+9, path, len+1);
+
+ return open(path, oflag, mode|O_CLOEXEC);
+}