1 #include <u.h>
2 #define NOPLAN9DEFINES
3 #include <libc.h>
4 
5 int
6 p9open(char *name, int mode)
7 {
8 	int cexec, rclose;
9 	int fd, umode;
10 
11 	umode = mode&3;
12 	cexec = mode&OCEXEC;
13 	rclose = mode&ORCLOSE;
14 	mode &= ~(3|OCEXEC|ORCLOSE);
15 	if(mode&OTRUNC){
16 		umode |= O_TRUNC;
17 		mode ^= OTRUNC;
18 	}
19 	if(mode){
20 		werrstr("mode not supported");
21 		return -1;
22 	}
23 	fd = open(name, umode);
24 	if(fd >= 0){
25 		if(cexec)
26 			fcntl(fd, F_SETFL, FD_CLOEXEC);
27 		if(rclose)
28 			remove(name);
29 	}
30 	return fd;
31 }