1 478ee963 2003-11-23 devnull #include <u.h>
  2 478ee963 2003-11-23 devnull #define NOPLAN9DEFINES
  3 478ee963 2003-11-23 devnull #include <libc.h>
  4 478ee963 2003-11-23 devnull #include <sys/types.h>
  5 fd04aace 2003-11-23 devnull #include <sys/stat.h>
  6 fd04aace 2003-11-23 devnull #include <dirent.h>
  7 fd04aace 2003-11-23 devnull #include <pwd.h>
  8 fd04aace 2003-11-23 devnull #include <grp.h>
  9 fd04aace 2003-11-23 devnull 
 10 fe8c925e 2005-07-21 devnull #if defined(__FreeBSD__) || defined(__OpenBSD__)
 11 64bcfff3 2003-11-25 devnull #include <sys/disklabel.h>
 12 fe8c925e 2005-07-21 devnull #include <sys/ioctl.h>
 13 69bdb78d 2007-05-11 devnull #define _HAVEDISKLABEL
 14 69bdb78d 2007-05-11 devnull #endif
 15 69bdb78d 2007-05-11 devnull 
 16 69bdb78d 2007-05-11 devnull #if defined(__OpenBSD__)
 17 669250d1 2003-12-03 devnull static int diskdev[] = {
 18 669250d1 2003-12-03 devnull 	151,	/* aacd */
 19 669250d1 2003-12-03 devnull 	116,	/* ad */
 20 669250d1 2003-12-03 devnull 	157,	/* ar */
 21 669250d1 2003-12-03 devnull 	118,	/* afd */
 22 669250d1 2003-12-03 devnull 	133,	/* amrd */
 23 669250d1 2003-12-03 devnull 	13,	/* da */
 24 669250d1 2003-12-03 devnull 	102,	/* fla */
 25 669250d1 2003-12-03 devnull 	109,	/* idad */
 26 669250d1 2003-12-03 devnull 	95,	/* md */
 27 669250d1 2003-12-03 devnull 	131,	/* mlxd */
 28 669250d1 2003-12-03 devnull 	168,	/* pst */
 29 669250d1 2003-12-03 devnull 	147,	/* twed */
 30 669250d1 2003-12-03 devnull 	43,	/* vn */
 31 669250d1 2003-12-03 devnull 	3,	/* wd */
 32 669250d1 2003-12-03 devnull 	87,	/* wfd */
 33 a98755e0 2006-01-07 devnull 	4,	/* da on FreeBSD 5 */
 34 669250d1 2003-12-03 devnull };
 35 669250d1 2003-12-03 devnull static int
 36 669250d1 2003-12-03 devnull isdisk(struct stat *st)
 37 669250d1 2003-12-03 devnull {
 38 669250d1 2003-12-03 devnull 	int i, dev;
 39 669250d1 2003-12-03 devnull 
 40 669250d1 2003-12-03 devnull 	if(!S_ISCHR(st->st_mode))
 41 669250d1 2003-12-03 devnull 		return 0;
 42 669250d1 2003-12-03 devnull 	dev = major(st->st_rdev);
 43 669250d1 2003-12-03 devnull 	for(i=0; i<nelem(diskdev); i++)
 44 669250d1 2003-12-03 devnull 		if(diskdev[i] == dev)
 45 669250d1 2003-12-03 devnull 			return 1;
 46 669250d1 2003-12-03 devnull 	return 0;
 47 669250d1 2003-12-03 devnull }
 48 64bcfff3 2003-11-25 devnull #endif
 49 64bcfff3 2003-11-25 devnull 
 50 69bdb78d 2007-05-11 devnull #if defined(__FreeBSD__)	/* maybe OpenBSD too? */
 51 69bdb78d 2007-05-11 devnull char *diskdev[] = {
 52 69bdb78d 2007-05-11 devnull 	"aacd",
 53 69bdb78d 2007-05-11 devnull 	"ad",
 54 69bdb78d 2007-05-11 devnull 	"ar",
 55 69bdb78d 2007-05-11 devnull 	"afd",
 56 69bdb78d 2007-05-11 devnull 	"amrd",
 57 69bdb78d 2007-05-11 devnull 	"da",
 58 69bdb78d 2007-05-11 devnull 	"fla",
 59 69bdb78d 2007-05-11 devnull 	"idad",
 60 69bdb78d 2007-05-11 devnull 	"md",
 61 69bdb78d 2007-05-11 devnull 	"mlxd",
 62 69bdb78d 2007-05-11 devnull 	"pst",
 63 69bdb78d 2007-05-11 devnull 	"twed",
 64 69bdb78d 2007-05-11 devnull 	"vn",
 65 69bdb78d 2007-05-11 devnull 	"wd",
 66 69bdb78d 2007-05-11 devnull 	"wfd",
 67 69bdb78d 2007-05-11 devnull 	"da",
 68 69bdb78d 2007-05-11 devnull };
 69 69bdb78d 2007-05-11 devnull static int
 70 69bdb78d 2007-05-11 devnull isdisk(struct stat *st)
 71 69bdb78d 2007-05-11 devnull {
 72 69bdb78d 2007-05-11 devnull 	char *name;
 73 43f16cfa 2007-05-11 devnull 	int i, len;
 74 69bdb78d 2007-05-11 devnull 	
 75 69bdb78d 2007-05-11 devnull 	if(!S_ISCHR(st->st_mode))
 76 69bdb78d 2007-05-11 devnull 		return 0;
 77 69bdb78d 2007-05-11 devnull 	name = devname(st->st_rdev, S_IFCHR);
 78 43f16cfa 2007-05-11 devnull 	for(i=0; i<nelem(diskdev); i++){
 79 43f16cfa 2007-05-11 devnull 		len = strlen(diskdev[i]);
 80 43f16cfa 2007-05-11 devnull 		if(strncmp(diskdev[i], name, len) == 0 && isdigit((uchar)name[len]))
 81 69bdb78d 2007-05-11 devnull 			return 1;
 82 43f16cfa 2007-05-11 devnull 	}
 83 69bdb78d 2007-05-11 devnull 	return 0;
 84 69bdb78d 2007-05-11 devnull }
 85 69bdb78d 2007-05-11 devnull #endif
 86 69bdb78d 2007-05-11 devnull 
 87 69bdb78d 2007-05-11 devnull 
 88 7317e77d 2004-04-25 devnull #if defined(__linux__)
 89 7317e77d 2004-04-25 devnull #include <linux/hdreg.h>
 90 7317e77d 2004-04-25 devnull #include <linux/fs.h>
 91 7317e77d 2004-04-25 devnull #include <sys/ioctl.h>
 92 a3e9d893 2005-08-10 devnull #undef major
 93 a3e9d893 2005-08-10 devnull #define major(dev) ((int)(((dev) >> 8) & 0xff))
 94 7317e77d 2004-04-25 devnull static vlong
 95 7317e77d 2004-04-25 devnull disksize(int fd, int dev)
 96 7317e77d 2004-04-25 devnull {
 97 7317e77d 2004-04-25 devnull 	u64int u64;
 98 7317e77d 2004-04-25 devnull 	long l;
 99 7317e77d 2004-04-25 devnull 	struct hd_geometry geo;
100 7317e77d 2004-04-25 devnull 
101 ceecb313 2004-06-09 devnull 	memset(&geo, 0, sizeof geo);
102 ceecb313 2004-06-09 devnull 	l = 0;
103 ceecb313 2004-06-09 devnull 	u64 = 0;
104 76e6aca8 2004-05-15 devnull #ifdef BLKGETSIZE64
105 7317e77d 2004-04-25 devnull 	if(ioctl(fd, BLKGETSIZE64, &u64) >= 0)
106 7317e77d 2004-04-25 devnull 		return u64;
107 76e6aca8 2004-05-15 devnull #endif
108 7317e77d 2004-04-25 devnull 	if(ioctl(fd, BLKGETSIZE, &l) >= 0)
109 3d484b0d 2005-12-29 devnull 		return l*512;
110 7317e77d 2004-04-25 devnull 	if(ioctl(fd, HDIO_GETGEO, &geo) >= 0)
111 7317e77d 2004-04-25 devnull 		return (vlong)geo.heads*geo.sectors*geo.cylinders*512;
112 7317e77d 2004-04-25 devnull 	return 0;
113 7317e77d 2004-04-25 devnull }
114 7317e77d 2004-04-25 devnull #define _HAVEDISKSIZE
115 7317e77d 2004-04-25 devnull #endif
116 7317e77d 2004-04-25 devnull 
117 64bcfff3 2003-11-25 devnull #if !defined(__linux__) && !defined(__sun__)
118 64bcfff3 2003-11-25 devnull #define _HAVESTGEN
119 64bcfff3 2003-11-25 devnull #endif
120 64bcfff3 2003-11-25 devnull 
121 63fcc2bc 2006-06-12 devnull int _p9usepwlibrary = 1;
122 6f6553df 2004-04-08 devnull /*
123 6f6553df 2004-04-08 devnull  * Caching the last group and passwd looked up is
124 6f6553df 2004-04-08 devnull  * a significant win (stupidly enough) on most systems.
125 6f6553df 2004-04-08 devnull  * It's not safe for threaded programs, but neither is using
126 6f6553df 2004-04-08 devnull  * getpwnam in the first place, so I'm not too worried.
127 6f6553df 2004-04-08 devnull  */
128 fd04aace 2003-11-23 devnull int
129 0a229052 2005-02-08 devnull _p9dir(struct stat *lst, struct stat *st, char *name, Dir *d, char **str, char *estr)
130 fd04aace 2003-11-23 devnull {
131 fd04aace 2003-11-23 devnull 	char *s;
132 fd04aace 2003-11-23 devnull 	char tmp[20];
133 6f6553df 2004-04-08 devnull 	static struct group *g;
134 6f6553df 2004-04-08 devnull 	static struct passwd *p;
135 6f6553df 2004-04-08 devnull 	static int gid, uid;
136 7317e77d 2004-04-25 devnull 	int sz, fd;
137 fd04aace 2003-11-23 devnull 
138 631fe87f 2004-05-14 devnull 	fd = -1;
139 631fe87f 2004-05-14 devnull 	USED(fd);
140 fd04aace 2003-11-23 devnull 	sz = 0;
141 fd04aace 2003-11-23 devnull 	if(d)
142 fd04aace 2003-11-23 devnull 		memset(d, 0, sizeof *d);
143 fd04aace 2003-11-23 devnull 
144 fd04aace 2003-11-23 devnull 	/* name */
145 fd04aace 2003-11-23 devnull 	s = strrchr(name, '/');
146 fd04aace 2003-11-23 devnull 	if(s)
147 fd04aace 2003-11-23 devnull 		s++;
148 fd04aace 2003-11-23 devnull 	if(!s || !*s)
149 fd04aace 2003-11-23 devnull 		s = name;
150 fd04aace 2003-11-23 devnull 	if(*s == '/')
151 fd04aace 2003-11-23 devnull 		s++;
152 fd04aace 2003-11-23 devnull 	if(*s == 0)
153 fd04aace 2003-11-23 devnull 		s = "/";
154 fd04aace 2003-11-23 devnull 	if(d){
155 fd04aace 2003-11-23 devnull 		if(*str + strlen(s)+1 > estr)
156 fd04aace 2003-11-23 devnull 			d->name = "oops";
157 fd04aace 2003-11-23 devnull 		else{
158 fd04aace 2003-11-23 devnull 			strcpy(*str, s);
159 fd04aace 2003-11-23 devnull 			d->name = *str;
160 fd04aace 2003-11-23 devnull 			*str += strlen(*str)+1;
161 fd04aace 2003-11-23 devnull 		}
162 fd04aace 2003-11-23 devnull 	}
163 fd04aace 2003-11-23 devnull 	sz += strlen(s)+1;
164 fd04aace 2003-11-23 devnull 
165 fd04aace 2003-11-23 devnull 	/* user */
166 6f6553df 2004-04-08 devnull 	if(p && st->st_uid == uid && p->pw_uid == uid)
167 6f6553df 2004-04-08 devnull 		;
168 63fcc2bc 2006-06-12 devnull 	else if(_p9usepwlibrary){
169 6f6553df 2004-04-08 devnull 		p = getpwuid(st->st_uid);
170 6f6553df 2004-04-08 devnull 		uid = st->st_uid;
171 6f6553df 2004-04-08 devnull 	}
172 63fcc2bc 2006-06-12 devnull 	if(p == nil || st->st_uid != uid || p->pw_uid != uid){
173 fd04aace 2003-11-23 devnull 		snprint(tmp, sizeof tmp, "%d", (int)st->st_uid);
174 fd04aace 2003-11-23 devnull 		s = tmp;
175 fd04aace 2003-11-23 devnull 	}else
176 fd04aace 2003-11-23 devnull 		s = p->pw_name;
177 fd04aace 2003-11-23 devnull 	sz += strlen(s)+1;
178 fd04aace 2003-11-23 devnull 	if(d){
179 fd04aace 2003-11-23 devnull 		if(*str+strlen(s)+1 > estr)
180 fd04aace 2003-11-23 devnull 			d->uid = "oops";	
181 fd04aace 2003-11-23 devnull 		else{
182 fd04aace 2003-11-23 devnull 			strcpy(*str, s);
183 fd04aace 2003-11-23 devnull 			d->uid = *str;
184 fd04aace 2003-11-23 devnull 			*str += strlen(*str)+1;
185 fd04aace 2003-11-23 devnull 		}
186 fd04aace 2003-11-23 devnull 	}
187 fd04aace 2003-11-23 devnull 
188 fd04aace 2003-11-23 devnull 	/* group */
189 6f6553df 2004-04-08 devnull 	if(g && st->st_gid == gid && g->gr_gid == gid)
190 6f6553df 2004-04-08 devnull 		;
191 63fcc2bc 2006-06-12 devnull 	else if(_p9usepwlibrary){
192 6f6553df 2004-04-08 devnull 		g = getgrgid(st->st_gid);
193 6f6553df 2004-04-08 devnull 		gid = st->st_gid;
194 6f6553df 2004-04-08 devnull 	}
195 63fcc2bc 2006-06-12 devnull 	if(g == nil || st->st_gid != gid || g->gr_gid != gid){
196 fd04aace 2003-11-23 devnull 		snprint(tmp, sizeof tmp, "%d", (int)st->st_gid);
197 fd04aace 2003-11-23 devnull 		s = tmp;
198 fd04aace 2003-11-23 devnull 	}else
199 fd04aace 2003-11-23 devnull 		s = g->gr_name;
200 fd04aace 2003-11-23 devnull 	sz += strlen(s)+1;
201 fd04aace 2003-11-23 devnull 	if(d){
202 fd04aace 2003-11-23 devnull 		if(*str + strlen(s)+1 > estr)
203 fd04aace 2003-11-23 devnull 			d->gid = "oops";	
204 fd04aace 2003-11-23 devnull 		else{
205 fd04aace 2003-11-23 devnull 			strcpy(*str, s);
206 fd04aace 2003-11-23 devnull 			d->gid = *str;
207 fd04aace 2003-11-23 devnull 			*str += strlen(*str)+1;
208 fd04aace 2003-11-23 devnull 		}
209 fd04aace 2003-11-23 devnull 	}
210 fd04aace 2003-11-23 devnull 
211 fd04aace 2003-11-23 devnull 	if(d){
212 fd04aace 2003-11-23 devnull 		d->type = 'M';
213 fd04aace 2003-11-23 devnull 
214 fd04aace 2003-11-23 devnull 		d->muid = "";
215 fd04aace 2003-11-23 devnull 		d->qid.path = ((uvlong)st->st_dev<<32) | st->st_ino;
216 1c253ceb 2003-11-23 devnull #ifdef _HAVESTGEN
217 fd04aace 2003-11-23 devnull 		d->qid.vers = st->st_gen;
218 1c253ceb 2003-11-23 devnull #endif
219 3d484b0d 2005-12-29 devnull 		if(d->qid.vers == 0)
220 3d484b0d 2005-12-29 devnull 			d->qid.vers = st->st_mtime + st->st_ctime;
221 fd04aace 2003-11-23 devnull 		d->mode = st->st_mode&0777;
222 fd04aace 2003-11-23 devnull 		d->atime = st->st_atime;
223 fd04aace 2003-11-23 devnull 		d->mtime = st->st_mtime;
224 fd04aace 2003-11-23 devnull 		d->length = st->st_size;
225 fd04aace 2003-11-23 devnull 
226 fd04aace 2003-11-23 devnull 		if(S_ISDIR(st->st_mode)){
227 fd04aace 2003-11-23 devnull 			d->length = 0;
228 fd04aace 2003-11-23 devnull 			d->mode |= DMDIR;
229 fd04aace 2003-11-23 devnull 			d->qid.type = QTDIR;
230 fd04aace 2003-11-23 devnull 		}
231 98660df2 2005-02-21 devnull 		if(S_ISLNK(lst->st_mode))	/* yes, lst not st */
232 2acd6fa6 2005-02-08 devnull 			d->mode |= DMSYMLINK;
233 2acd6fa6 2005-02-08 devnull 		if(S_ISFIFO(st->st_mode))
234 2acd6fa6 2005-02-08 devnull 			d->mode |= DMNAMEDPIPE;
235 2acd6fa6 2005-02-08 devnull 		if(S_ISSOCK(st->st_mode))
236 2acd6fa6 2005-02-08 devnull 			d->mode |= DMSOCKET;
237 2acd6fa6 2005-02-08 devnull 		if(S_ISBLK(st->st_mode)){
238 2acd6fa6 2005-02-08 devnull 			d->mode |= DMDEVICE;
239 2acd6fa6 2005-02-08 devnull 			d->qid.path = ('b'<<16)|st->st_rdev;
240 2acd6fa6 2005-02-08 devnull 		}
241 2acd6fa6 2005-02-08 devnull 		if(S_ISCHR(st->st_mode)){
242 2acd6fa6 2005-02-08 devnull 			d->mode |= DMDEVICE;
243 2acd6fa6 2005-02-08 devnull 			d->qid.path = ('c'<<16)|st->st_rdev;
244 2acd6fa6 2005-02-08 devnull 		}
245 fd04aace 2003-11-23 devnull 		/* fetch real size for disks */
246 7317e77d 2004-04-25 devnull #ifdef _HAVEDISKSIZE
247 3d72637f 2004-04-26 devnull 		if(S_ISBLK(st->st_mode) && (fd = open(name, O_RDONLY)) >= 0){
248 7317e77d 2004-04-25 devnull 			d->length = disksize(fd, major(st->st_dev));
249 7317e77d 2004-04-25 devnull 			close(fd);
250 7317e77d 2004-04-25 devnull 		}
251 7317e77d 2004-04-25 devnull #endif
252 1c253ceb 2003-11-23 devnull #ifdef _HAVEDISKLABEL
253 669250d1 2003-12-03 devnull 		if(isdisk(st)){
254 fd04aace 2003-11-23 devnull 			int fd, n;
255 fd04aace 2003-11-23 devnull 			struct disklabel lab;
256 fd04aace 2003-11-23 devnull 
257 fd04aace 2003-11-23 devnull 			if((fd = open(name, O_RDONLY)) < 0)
258 fd04aace 2003-11-23 devnull 				goto nosize;
259 fd04aace 2003-11-23 devnull 			if(ioctl(fd, DIOCGDINFO, &lab) < 0)
260 fd04aace 2003-11-23 devnull 				goto nosize;
261 fd04aace 2003-11-23 devnull 			n = minor(st->st_rdev)&7;
262 fd04aace 2003-11-23 devnull 			if(n >= lab.d_npartitions)
263 fd04aace 2003-11-23 devnull 				goto nosize;
264 fd04aace 2003-11-23 devnull 
265 fd04aace 2003-11-23 devnull 			d->length = (vlong)(lab.d_partitions[n].p_size) * lab.d_secsize;
266 fd04aace 2003-11-23 devnull 
267 fd04aace 2003-11-23 devnull 		nosize:
268 fd04aace 2003-11-23 devnull 			if(fd >= 0)
269 fd04aace 2003-11-23 devnull 				close(fd);
270 fd04aace 2003-11-23 devnull 		}
271 1c253ceb 2003-11-23 devnull #endif
272 fd04aace 2003-11-23 devnull 	}
273 fd04aace 2003-11-23 devnull 
274 fd04aace 2003-11-23 devnull 	return sz;
275 fd04aace 2003-11-23 devnull }
276 fd04aace 2003-11-23 devnull