1 be36ff68 2004-04-29 devnull #define _GNU_SOURCE	/* for Linux O_DIRECT */
 2 fd04aace 2003-11-23 devnull #include <u.h>
 3 32f69c36 2003-12-11 devnull #define NOPLAN9DEFINES
 4 fd04aace 2003-11-23 devnull #include <libc.h>
 5 32f69c36 2003-12-11 devnull #include <sys/stat.h>
 6 983990c8 2004-05-14 devnull #ifndef O_DIRECT
 7 983990c8 2004-05-14 devnull #define O_DIRECT 0
 8 983990c8 2004-05-14 devnull #endif
 9 fd04aace 2003-11-23 devnull 
10 fd04aace 2003-11-23 devnull int
11 8ad51794 2004-03-25 devnull p9create(char *path, int mode, ulong perm)
12 fd04aace 2003-11-23 devnull {
13 32f69c36 2003-12-11 devnull 	int fd, cexec, umode, rclose;
14 32f69c36 2003-12-11 devnull 
15 32f69c36 2003-12-11 devnull 	cexec = mode&OCEXEC;
16 32f69c36 2003-12-11 devnull 	rclose = mode&ORCLOSE;
17 32f69c36 2003-12-11 devnull 	mode &= ~(ORCLOSE|OCEXEC);
18 32f69c36 2003-12-11 devnull 
19 32f69c36 2003-12-11 devnull 	/* XXX should get mode mask right? */
20 32f69c36 2003-12-11 devnull 	fd = -1;
21 32f69c36 2003-12-11 devnull 	if(perm&DMDIR){
22 32f69c36 2003-12-11 devnull 		if(mode != OREAD){
23 32f69c36 2003-12-11 devnull 			werrstr("bad mode in directory create");
24 32f69c36 2003-12-11 devnull 			goto out;
25 32f69c36 2003-12-11 devnull 		}
26 32f69c36 2003-12-11 devnull 		if(mkdir(path, perm&0777) < 0)
27 32f69c36 2003-12-11 devnull 			goto out;
28 32f69c36 2003-12-11 devnull 		fd = open(path, O_RDONLY);
29 32f69c36 2003-12-11 devnull 	}else{
30 32f69c36 2003-12-11 devnull 		umode = (mode&3)|O_CREAT|O_TRUNC;
31 32f69c36 2003-12-11 devnull 		mode &= ~(3|OTRUNC);
32 be36ff68 2004-04-29 devnull 		if(mode&ODIRECT){
33 be36ff68 2004-04-29 devnull 			umode |= O_DIRECT;
34 be36ff68 2004-04-29 devnull 			mode &= ~ODIRECT;
35 be36ff68 2004-04-29 devnull 		}
36 32f69c36 2003-12-11 devnull 		if(mode&OEXCL){
37 32f69c36 2003-12-11 devnull 			umode |= O_EXCL;
38 32f69c36 2003-12-11 devnull 			mode &= ~OEXCL;
39 32f69c36 2003-12-11 devnull 		}
40 32f69c36 2003-12-11 devnull 		if(mode){
41 32f69c36 2003-12-11 devnull 			werrstr("unsupported mode in create");
42 32f69c36 2003-12-11 devnull 			goto out;
43 32f69c36 2003-12-11 devnull 		}
44 32f69c36 2003-12-11 devnull 		fd = open(path, umode, perm);
45 32f69c36 2003-12-11 devnull 	}
46 32f69c36 2003-12-11 devnull out:
47 32f69c36 2003-12-11 devnull 	if(fd >= 0){
48 32f69c36 2003-12-11 devnull 		if(cexec)
49 32f69c36 2003-12-11 devnull 			fcntl(fd, F_SETFL, FD_CLOEXEC);
50 32f69c36 2003-12-11 devnull 		if(rclose)
51 32f69c36 2003-12-11 devnull 			remove(path);
52 32f69c36 2003-12-11 devnull 	}
53 32f69c36 2003-12-11 devnull 	return fd;
54 fd04aace 2003-11-23 devnull }