More files related to user-level file servers.
Also add acme!
diff --git a/src/lib9/open.c b/src/lib9/open.c
new file mode 100644
index 0000000..bb597e8
--- /dev/null
+++ b/src/lib9/open.c
@@ -0,0 +1,38 @@
+#include <u.h>
+#define NOPLAN9DEFINES
+#include <libc.h>
+
+extern char* _p9translate(char*);
+
+int
+p9open(char *xname, int mode)
+{
+ char *name;
+ int cexec, rclose;
+ int fd, umode;
+
+ umode = mode&3;
+ cexec = mode&OCEXEC;
+ rclose = mode&ORCLOSE;
+ mode &= ~(3|OCEXEC|ORCLOSE);
+ if(mode&OTRUNC){
+ umode |= O_TRUNC;
+ mode ^= OTRUNC;
+ }
+ if(mode){
+ werrstr("mode not supported");
+ return -1;
+ }
+ if((name = _p9translate(xname)) == nil)
+ return -1;
+ fd = open(name, umode);
+ if(fd >= 0){
+ if(cexec)
+ fcntl(fd, F_SETFL, FD_CLOEXEC);
+ if(rclose)
+ remove(name);
+ }
+ if(name != xname)
+ free(name);
+ return fd;
+}
