1 #include <u.h>
2 #define NOPLAN9DEFINES
3 #include <libc.h>
4 #include <sys/stat.h>
5 
6 int
7 p9create(char *path, int mode, ulong perm)
8 {
9 	int fd, cexec, umode, rclose;
10 
11 	cexec = mode&OCEXEC;
12 	rclose = mode&ORCLOSE;
13 	mode &= ~(ORCLOSE|OCEXEC);
14 
15 	/* XXX should get mode mask right? */
16 	fd = -1;
17 	if(perm&DMDIR){
18 		if(mode != OREAD){
19 			werrstr("bad mode in directory create");
20 			goto out;
21 		}
22 		if(mkdir(path, perm&0777) < 0)
23 			goto out;
24 		fd = open(path, O_RDONLY);
25 	}else{
26 		umode = (mode&3)|O_CREAT|O_TRUNC;
27 		mode &= ~(3|OTRUNC);
28 		if(mode&OEXCL){
29 			umode |= O_EXCL;
30 			mode &= ~OEXCL;
31 		}
32 		if(mode){
33 			werrstr("unsupported mode in create");
34 			goto out;
35 		}
36 		fd = open(path, umode, perm);
37 	}
38 out:
39 	if(fd >= 0){
40 		if(cexec)
41 			fcntl(fd, F_SETFL, FD_CLOEXEC);
42 		if(rclose)
43 			remove(path);
44 	}
45 	return fd;
46 }