1 b3994ec5 2003-12-11 devnull #include <u.h>
 2 b3994ec5 2003-12-11 devnull #define NOPLAN9DEFINES
 3 b3994ec5 2003-12-11 devnull #include <libc.h>
 4 b3994ec5 2003-12-11 devnull 
 5 b3994ec5 2003-12-11 devnull extern char* _p9translate(char*);
 6 b3994ec5 2003-12-11 devnull 
 7 b3994ec5 2003-12-11 devnull int
 8 b3994ec5 2003-12-11 devnull p9open(char *xname, int mode)
 9 b3994ec5 2003-12-11 devnull {
10 b3994ec5 2003-12-11 devnull 	char *name;
11 b3994ec5 2003-12-11 devnull 	int cexec, rclose;
12 b3994ec5 2003-12-11 devnull 	int fd, umode;
13 b3994ec5 2003-12-11 devnull 
14 b3994ec5 2003-12-11 devnull 	umode = mode&3;
15 b3994ec5 2003-12-11 devnull 	cexec = mode&OCEXEC;
16 b3994ec5 2003-12-11 devnull 	rclose = mode&ORCLOSE;
17 b3994ec5 2003-12-11 devnull 	mode &= ~(3|OCEXEC|ORCLOSE);
18 b3994ec5 2003-12-11 devnull 	if(mode&OTRUNC){
19 b3994ec5 2003-12-11 devnull 		umode |= O_TRUNC;
20 b3994ec5 2003-12-11 devnull 		mode ^= OTRUNC;
21 b3994ec5 2003-12-11 devnull 	}
22 b3994ec5 2003-12-11 devnull 	if(mode){
23 b3994ec5 2003-12-11 devnull 		werrstr("mode not supported");
24 b3994ec5 2003-12-11 devnull 		return -1;
25 b3994ec5 2003-12-11 devnull 	}
26 b3994ec5 2003-12-11 devnull 	if((name = _p9translate(xname)) == nil)
27 b3994ec5 2003-12-11 devnull 		return -1;
28 b3994ec5 2003-12-11 devnull 	fd = open(name, umode);
29 b3994ec5 2003-12-11 devnull 	if(fd >= 0){
30 b3994ec5 2003-12-11 devnull 		if(cexec)
31 b3994ec5 2003-12-11 devnull 			fcntl(fd, F_SETFL, FD_CLOEXEC);
32 b3994ec5 2003-12-11 devnull 		if(rclose)
33 b3994ec5 2003-12-11 devnull 			remove(name);
34 b3994ec5 2003-12-11 devnull 	}
35 b3994ec5 2003-12-11 devnull 	if(name != xname)
36 b3994ec5 2003-12-11 devnull 		free(name);
37 b3994ec5 2003-12-11 devnull 	return fd;
38 b3994ec5 2003-12-11 devnull }