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-rw-r--r--src/lib9/create.c83
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diff --git a/src/lib9/create.c b/src/lib9/create.c
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+++ b/src/lib9/create.c
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+/*
+Plan 9 from User Space src/lib9/create.c
+http://code.swtch.com/plan9port/src/tip/src/lib9/create.c
+
+Copyright 2001-2007 Russ Cox. All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+#define _GNU_SOURCE /* for Linux O_DIRECT */
+#include <u.h>
+#define NOPLAN9DEFINES
+#include <sys/file.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <libc.h>
+#include <sys/stat.h>
+#ifndef O_DIRECT
+#define O_DIRECT 0
+#endif
+
+int
+p9create(char *path, int mode, ulong perm)
+{
+ int fd, umode, rclose;
+
+ rclose = mode&ORCLOSE;
+ mode &= ~ORCLOSE;
+
+ /* XXX should get mode mask right? */
+ fd = -1;
+ if(perm&DMDIR){
+ if(mode != OREAD){
+ werrstr("bad mode in directory create");
+ goto out;
+ }
+ if(mkdir(path, perm&0777) < 0)
+ goto out;
+ fd = open(path, O_RDONLY);
+ }else{
+ umode = (mode&3)|O_CREAT|O_TRUNC;
+ mode &= ~(3|OTRUNC);
+ if(mode&ODIRECT){
+ umode |= O_DIRECT;
+ mode &= ~ODIRECT;
+ }
+ if(mode&OEXCL){
+ umode |= O_EXCL;
+ mode &= ~OEXCL;
+ }
+ if(mode&OAPPEND){
+ umode |= O_APPEND;
+ mode &= ~OAPPEND;
+ }
+ if(mode){
+ werrstr("unsupported mode in create");
+ goto out;
+ }
+ umode |= O_BINARY;
+ fd = open(path, umode, perm);
+ }
+out:
+ if(fd >= 0){
+ if(rclose)
+ remove(path);
+ }
+ return fd;
+}