10 #if defined(__APPLE__)
14 disksize(int fd, struct stat *st)
21 ioctl(fd, DKIOCGETBLOCKSIZE, &bs);
22 ioctl(fd, DKIOCGETBLOCKCOUNT, &bc);
28 #elif defined(__FreeBSD__)
31 #include <sys/disklabel.h>
32 #include <sys/ioctl.h>
34 disksize(int fd, struct stat *st)
38 if(ioctl(fd, DIOCGMEDIASIZE, &mediasize) >= 0)
43 #elif defined(__OpenBSD__)
45 #include <sys/disklabel.h>
46 #include <sys/ioctl.h>
49 disksize(int fd, struct stat *st)
54 if(!S_ISCHR(st->st_mode))
56 if(ioctl(fd, DIOCGDINFO, &lab) < 0)
58 n = minor(st->st_rdev)&7;
59 if(n >= lab.d_npartitions)
61 return (vlong)lab.d_partitions[n].p_size * lab.d_secsize;
64 #elif defined(__linux__)
65 #include <linux/hdreg.h>
67 #include <sys/ioctl.h>
69 #define major(dev) ((int)(((dev) >> 8) & 0xff))
71 disksize(int fd, struct stat *st)
75 struct hd_geometry geo;
77 memset(&geo, 0, sizeof geo);
81 if(ioctl(fd, BLKGETSIZE64, &u64) >= 0)
84 if(ioctl(fd, BLKGETSIZE, &l) >= 0)
86 if(ioctl(fd, HDIO_GETGEO, &geo) >= 0)
87 return (vlong)geo.heads*geo.sectors*geo.cylinders*512;
93 disksize(int fd, struct stat *st)
99 int _p9usepwlibrary = 1;
101 * Caching the last group and passwd looked up is
102 * a significant win (stupidly enough) on most systems.
103 * It's not safe for threaded programs, but neither is using
104 * getpwnam in the first place, so I'm not too worried.
107 _p9dir(struct stat *lst, struct stat *st, char *name, Dir *d, char **str, char *estr)
111 static struct group *g;
112 static struct passwd *p;
120 memset(d, 0, sizeof *d);
123 s = strrchr(name, '/');
133 if(*str + strlen(s)+1 > estr)
138 *str += strlen(*str)+1;
144 if(p && st->st_uid == uid && p->pw_uid == uid)
146 else if(_p9usepwlibrary){
147 p = getpwuid(st->st_uid);
150 if(p == nil || st->st_uid != uid || p->pw_uid != uid){
151 snprint(tmp, sizeof tmp, "%d", (int)st->st_uid);
157 if(*str+strlen(s)+1 > estr)
162 *str += strlen(*str)+1;
167 if(g && st->st_gid == gid && g->gr_gid == gid)
169 else if(_p9usepwlibrary){
170 g = getgrgid(st->st_gid);
173 if(g == nil || st->st_gid != gid || g->gr_gid != gid){
174 snprint(tmp, sizeof tmp, "%d", (int)st->st_gid);
180 if(*str + strlen(s)+1 > estr)
185 *str += strlen(*str)+1;
193 d->qid.path = st->st_ino;
195 * do not include st->st_dev in path, because
196 * automounters give the same file system different
197 * st_dev values for successive mounts, causing
198 * spurious write warnings in acme and sam.
199 d->qid.path |= (uvlong)st->st_dev<<32;
202 d->qid.vers = st->st_gen;
205 d->qid.vers = st->st_mtime + st->st_ctime;
206 d->mode = st->st_mode&0777;
207 d->atime = st->st_atime;
208 d->mtime = st->st_mtime;
209 d->length = st->st_size;
211 if(S_ISLNK(lst->st_mode)){ /* yes, lst not st */
212 d->mode |= DMSYMLINK;
213 d->length = lst->st_size;
215 else if(S_ISDIR(st->st_mode)){
220 else if(S_ISFIFO(st->st_mode))
221 d->mode |= DMNAMEDPIPE;
222 else if(S_ISSOCK(st->st_mode))
224 else if(S_ISBLK(st->st_mode)){
226 d->qid.path = ('b'<<16)|st->st_rdev;
228 else if(S_ISCHR(st->st_mode)){
230 d->qid.path = ('c'<<16)|st->st_rdev;
232 /* fetch real size for disks */
233 if(S_ISBLK(lst->st_mode)){
234 if((fd = open(name, O_RDONLY)) >= 0){
235 d->length = disksize(fd, st);