196cbc34fSDavid du Colombier #include "u.h"
28ccd4a63SDavid du Colombier #include <sys/types.h>
38ccd4a63SDavid du Colombier #include <sys/stat.h>
48ccd4a63SDavid du Colombier #include <dirent.h>
58ccd4a63SDavid du Colombier #include <fcntl.h>
68ccd4a63SDavid du Colombier #include <errno.h>
78ccd4a63SDavid du Colombier #include <stdio.h> /* for remove, rename */
88ccd4a63SDavid du Colombier #include <limits.h>
98ccd4a63SDavid du Colombier
108ccd4a63SDavid du Colombier #ifndef NAME_MAX
118ccd4a63SDavid du Colombier # define NAME_MAX 256
128ccd4a63SDavid du Colombier #endif
138ccd4a63SDavid du Colombier #include "lib.h"
148ccd4a63SDavid du Colombier #include "dat.h"
158ccd4a63SDavid du Colombier #include "fns.h"
168ccd4a63SDavid du Colombier #include "error.h"
178ccd4a63SDavid du Colombier
188ccd4a63SDavid du Colombier
198ccd4a63SDavid du Colombier typedef struct Ufsinfo Ufsinfo;
208ccd4a63SDavid du Colombier
218ccd4a63SDavid du Colombier enum
228ccd4a63SDavid du Colombier {
238ccd4a63SDavid du Colombier NUID = 256,
248ccd4a63SDavid du Colombier NGID = 256,
258ccd4a63SDavid du Colombier MAXPATH = 1024,
268ccd4a63SDavid du Colombier MAXCOMP = 128
278ccd4a63SDavid du Colombier };
288ccd4a63SDavid du Colombier
298ccd4a63SDavid du Colombier struct Ufsinfo
308ccd4a63SDavid du Colombier {
318ccd4a63SDavid du Colombier int mode;
328ccd4a63SDavid du Colombier int fd;
338ccd4a63SDavid du Colombier int uid;
348ccd4a63SDavid du Colombier int gid;
358ccd4a63SDavid du Colombier DIR* dir;
3696cbc34fSDavid du Colombier vlong offset;
378ccd4a63SDavid du Colombier QLock oq;
388ccd4a63SDavid du Colombier char nextname[NAME_MAX];
398ccd4a63SDavid du Colombier };
408ccd4a63SDavid du Colombier
418ccd4a63SDavid du Colombier char *base = "/";
428ccd4a63SDavid du Colombier
438ccd4a63SDavid du Colombier static Qid fsqid(char*, struct stat *);
448ccd4a63SDavid du Colombier static void fspath(Chan*, char*, char*);
458ccd4a63SDavid du Colombier static ulong fsdirread(Chan*, uchar*, int, ulong);
468ccd4a63SDavid du Colombier static int fsomode(int);
478ccd4a63SDavid du Colombier
488ccd4a63SDavid du Colombier /* clumsy hack, but not worse than the Path stuff in the last one */
498ccd4a63SDavid du Colombier static char*
uc2name(Chan * c)508ccd4a63SDavid du Colombier uc2name(Chan *c)
518ccd4a63SDavid du Colombier {
528ccd4a63SDavid du Colombier char *s;
538ccd4a63SDavid du Colombier
548ccd4a63SDavid du Colombier if(c->name == nil)
558ccd4a63SDavid du Colombier return "/";
568ccd4a63SDavid du Colombier s = c2name(c);
578ccd4a63SDavid du Colombier if(s[0]=='#' && s[1]=='U')
588ccd4a63SDavid du Colombier return s+2;
598ccd4a63SDavid du Colombier return s;
608ccd4a63SDavid du Colombier }
618ccd4a63SDavid du Colombier
628ccd4a63SDavid du Colombier static char*
lastelem(Chan * c)638ccd4a63SDavid du Colombier lastelem(Chan *c)
648ccd4a63SDavid du Colombier {
658ccd4a63SDavid du Colombier char *s, *t;
668ccd4a63SDavid du Colombier
678ccd4a63SDavid du Colombier s = uc2name(c);
688ccd4a63SDavid du Colombier if((t = strrchr(s, '/')) == nil)
698ccd4a63SDavid du Colombier return s;
708ccd4a63SDavid du Colombier if(t[1] == 0)
718ccd4a63SDavid du Colombier return t;
728ccd4a63SDavid du Colombier return t+1;
738ccd4a63SDavid du Colombier }
748ccd4a63SDavid du Colombier
758ccd4a63SDavid du Colombier static Chan*
fsattach(char * spec)768ccd4a63SDavid du Colombier fsattach(char *spec)
778ccd4a63SDavid du Colombier {
788ccd4a63SDavid du Colombier Chan *c;
798ccd4a63SDavid du Colombier struct stat stbuf;
808ccd4a63SDavid du Colombier static int devno;
818ccd4a63SDavid du Colombier Ufsinfo *uif;
828ccd4a63SDavid du Colombier
838ccd4a63SDavid du Colombier if(stat(base, &stbuf) < 0)
848ccd4a63SDavid du Colombier error(strerror(errno));
858ccd4a63SDavid du Colombier
868ccd4a63SDavid du Colombier c = devattach('U', spec);
878ccd4a63SDavid du Colombier
888ccd4a63SDavid du Colombier uif = mallocz(sizeof(Ufsinfo), 1);
898ccd4a63SDavid du Colombier uif->mode = stbuf.st_mode;
908ccd4a63SDavid du Colombier uif->uid = stbuf.st_uid;
918ccd4a63SDavid du Colombier uif->gid = stbuf.st_gid;
928ccd4a63SDavid du Colombier
938ccd4a63SDavid du Colombier c->aux = uif;
948ccd4a63SDavid du Colombier c->dev = devno++;
958ccd4a63SDavid du Colombier c->qid.type = QTDIR;
968ccd4a63SDavid du Colombier /*print("fsattach %s\n", c2name(c));*/
978ccd4a63SDavid du Colombier
988ccd4a63SDavid du Colombier return c;
998ccd4a63SDavid du Colombier }
1008ccd4a63SDavid du Colombier
1018ccd4a63SDavid du Colombier static Chan*
fsclone(Chan * c,Chan * nc)1028ccd4a63SDavid du Colombier fsclone(Chan *c, Chan *nc)
1038ccd4a63SDavid du Colombier {
1048ccd4a63SDavid du Colombier Ufsinfo *uif;
1058ccd4a63SDavid du Colombier
1068ccd4a63SDavid du Colombier uif = mallocz(sizeof(Ufsinfo), 1);
1078ccd4a63SDavid du Colombier *uif = *(Ufsinfo*)c->aux;
1088ccd4a63SDavid du Colombier nc->aux = uif;
1098ccd4a63SDavid du Colombier
1108ccd4a63SDavid du Colombier return nc;
1118ccd4a63SDavid du Colombier }
1128ccd4a63SDavid du Colombier
1138ccd4a63SDavid du Colombier static int
fswalk1(Chan * c,char * name)1148ccd4a63SDavid du Colombier fswalk1(Chan *c, char *name)
1158ccd4a63SDavid du Colombier {
1168ccd4a63SDavid du Colombier struct stat stbuf;
1178ccd4a63SDavid du Colombier char path[MAXPATH];
1188ccd4a63SDavid du Colombier Ufsinfo *uif;
1198ccd4a63SDavid du Colombier
1208ccd4a63SDavid du Colombier fspath(c, name, path);
1218ccd4a63SDavid du Colombier
1228ccd4a63SDavid du Colombier /*print("** fs walk '%s' -> %s\n", path, name); */
1238ccd4a63SDavid du Colombier
1248ccd4a63SDavid du Colombier if(stat(path, &stbuf) < 0)
1258ccd4a63SDavid du Colombier return 0;
1268ccd4a63SDavid du Colombier
1278ccd4a63SDavid du Colombier uif = c->aux;
1288ccd4a63SDavid du Colombier
1298ccd4a63SDavid du Colombier uif->mode = stbuf.st_mode;
1308ccd4a63SDavid du Colombier uif->uid = stbuf.st_uid;
1318ccd4a63SDavid du Colombier uif->gid = stbuf.st_gid;
1328ccd4a63SDavid du Colombier
1338ccd4a63SDavid du Colombier c->qid = fsqid(path, &stbuf);
1348ccd4a63SDavid du Colombier
1358ccd4a63SDavid du Colombier return 1;
1368ccd4a63SDavid du Colombier }
1378ccd4a63SDavid du Colombier
1388ccd4a63SDavid du Colombier extern Cname* addelem(Cname*, char*);
1398ccd4a63SDavid du Colombier
1408ccd4a63SDavid du Colombier static Walkqid*
fswalk(Chan * c,Chan * nc,char ** name,int nname)1418ccd4a63SDavid du Colombier fswalk(Chan *c, Chan *nc, char **name, int nname)
1428ccd4a63SDavid du Colombier {
1438ccd4a63SDavid du Colombier int i;
1448ccd4a63SDavid du Colombier Cname *cname;
1458ccd4a63SDavid du Colombier Walkqid *wq;
1468ccd4a63SDavid du Colombier
1478ccd4a63SDavid du Colombier if(nc != nil)
1488ccd4a63SDavid du Colombier panic("fswalk: nc != nil");
1498ccd4a63SDavid du Colombier wq = smalloc(sizeof(Walkqid)+(nname-1)*sizeof(Qid));
1508ccd4a63SDavid du Colombier nc = devclone(c);
1518ccd4a63SDavid du Colombier cname = c->name;
1528ccd4a63SDavid du Colombier incref(&cname->ref);
1538ccd4a63SDavid du Colombier
1548ccd4a63SDavid du Colombier fsclone(c, nc);
1558ccd4a63SDavid du Colombier wq->clone = nc;
1568ccd4a63SDavid du Colombier for(i=0; i<nname; i++){
1578ccd4a63SDavid du Colombier nc->name = cname;
1588ccd4a63SDavid du Colombier if(fswalk1(nc, name[i]) == 0)
1598ccd4a63SDavid du Colombier break;
1608ccd4a63SDavid du Colombier cname = addelem(cname, name[i]);
1618ccd4a63SDavid du Colombier wq->qid[i] = nc->qid;
1628ccd4a63SDavid du Colombier }
16396cbc34fSDavid du Colombier nc->name = cname;
1648ccd4a63SDavid du Colombier if(i != nname){
1658ccd4a63SDavid du Colombier cclose(nc);
1668ccd4a63SDavid du Colombier wq->clone = nil;
1678ccd4a63SDavid du Colombier }
1688ccd4a63SDavid du Colombier wq->nqid = i;
1698ccd4a63SDavid du Colombier return wq;
1708ccd4a63SDavid du Colombier }
1718ccd4a63SDavid du Colombier
1728ccd4a63SDavid du Colombier static int
fsstat(Chan * c,uchar * buf,int n)1738ccd4a63SDavid du Colombier fsstat(Chan *c, uchar *buf, int n)
1748ccd4a63SDavid du Colombier {
1758ccd4a63SDavid du Colombier Dir d;
1768ccd4a63SDavid du Colombier struct stat stbuf;
1778ccd4a63SDavid du Colombier char path[MAXPATH];
1788ccd4a63SDavid du Colombier
1798ccd4a63SDavid du Colombier if(n < BIT16SZ)
1808ccd4a63SDavid du Colombier error(Eshortstat);
1818ccd4a63SDavid du Colombier
1828ccd4a63SDavid du Colombier fspath(c, 0, path);
1838ccd4a63SDavid du Colombier if(stat(path, &stbuf) < 0)
1848ccd4a63SDavid du Colombier error(strerror(errno));
1858ccd4a63SDavid du Colombier
1868ccd4a63SDavid du Colombier d.name = lastelem(c);
1878ccd4a63SDavid du Colombier d.uid = "unknown";
1888ccd4a63SDavid du Colombier d.gid = "unknown";
1898ccd4a63SDavid du Colombier d.muid = "unknown";
1908ccd4a63SDavid du Colombier d.qid = c->qid;
1918ccd4a63SDavid du Colombier d.mode = (c->qid.type<<24)|(stbuf.st_mode&0777);
1928ccd4a63SDavid du Colombier d.atime = stbuf.st_atime;
1938ccd4a63SDavid du Colombier d.mtime = stbuf.st_mtime;
1948ccd4a63SDavid du Colombier d.length = stbuf.st_size;
1958ccd4a63SDavid du Colombier d.type = 'U';
1968ccd4a63SDavid du Colombier d.dev = c->dev;
1978ccd4a63SDavid du Colombier return convD2M(&d, buf, n);
1988ccd4a63SDavid du Colombier }
1998ccd4a63SDavid du Colombier
2008ccd4a63SDavid du Colombier static Chan*
fsopen(Chan * c,int mode)2018ccd4a63SDavid du Colombier fsopen(Chan *c, int mode)
2028ccd4a63SDavid du Colombier {
2038ccd4a63SDavid du Colombier char path[MAXPATH];
2048ccd4a63SDavid du Colombier int m, isdir;
2058ccd4a63SDavid du Colombier Ufsinfo *uif;
2068ccd4a63SDavid du Colombier
2078ccd4a63SDavid du Colombier /*print("fsopen %s\n", c2name(c));*/
2088ccd4a63SDavid du Colombier m = mode & (OTRUNC|3);
2098ccd4a63SDavid du Colombier switch(m) {
2108ccd4a63SDavid du Colombier case 0:
2118ccd4a63SDavid du Colombier break;
2128ccd4a63SDavid du Colombier case 1:
2138ccd4a63SDavid du Colombier case 1|16:
2148ccd4a63SDavid du Colombier break;
2158ccd4a63SDavid du Colombier case 2:
2168ccd4a63SDavid du Colombier case 0|16:
2178ccd4a63SDavid du Colombier case 2|16:
2188ccd4a63SDavid du Colombier break;
2198ccd4a63SDavid du Colombier case 3:
2208ccd4a63SDavid du Colombier break;
2218ccd4a63SDavid du Colombier default:
2228ccd4a63SDavid du Colombier error(Ebadarg);
2238ccd4a63SDavid du Colombier }
2248ccd4a63SDavid du Colombier
2258ccd4a63SDavid du Colombier isdir = c->qid.type & QTDIR;
2268ccd4a63SDavid du Colombier
2278ccd4a63SDavid du Colombier if(isdir && mode != OREAD)
2288ccd4a63SDavid du Colombier error(Eperm);
2298ccd4a63SDavid du Colombier
2308ccd4a63SDavid du Colombier m = fsomode(m & 3);
2318ccd4a63SDavid du Colombier c->mode = openmode(mode);
2328ccd4a63SDavid du Colombier
2338ccd4a63SDavid du Colombier uif = c->aux;
2348ccd4a63SDavid du Colombier
2358ccd4a63SDavid du Colombier fspath(c, 0, path);
2368ccd4a63SDavid du Colombier if(isdir) {
2378ccd4a63SDavid du Colombier uif->dir = opendir(path);
2388ccd4a63SDavid du Colombier if(uif->dir == 0)
2398ccd4a63SDavid du Colombier error(strerror(errno));
2408ccd4a63SDavid du Colombier }
2418ccd4a63SDavid du Colombier else {
2428ccd4a63SDavid du Colombier if(mode & OTRUNC)
2438ccd4a63SDavid du Colombier m |= O_TRUNC;
2448ccd4a63SDavid du Colombier uif->fd = open(path, m, 0666);
2458ccd4a63SDavid du Colombier
2468ccd4a63SDavid du Colombier if(uif->fd < 0)
2478ccd4a63SDavid du Colombier error(strerror(errno));
2488ccd4a63SDavid du Colombier }
2498ccd4a63SDavid du Colombier uif->offset = 0;
2508ccd4a63SDavid du Colombier
2518ccd4a63SDavid du Colombier c->offset = 0;
2528ccd4a63SDavid du Colombier c->flag |= COPEN;
2538ccd4a63SDavid du Colombier return c;
2548ccd4a63SDavid du Colombier }
2558ccd4a63SDavid du Colombier
2568ccd4a63SDavid du Colombier static void
fscreate(Chan * c,char * name,int mode,ulong perm)2578ccd4a63SDavid du Colombier fscreate(Chan *c, char *name, int mode, ulong perm)
2588ccd4a63SDavid du Colombier {
2598ccd4a63SDavid du Colombier int fd, m;
2608ccd4a63SDavid du Colombier char path[MAXPATH];
2618ccd4a63SDavid du Colombier struct stat stbuf;
2628ccd4a63SDavid du Colombier Ufsinfo *uif;
2638ccd4a63SDavid du Colombier
2648ccd4a63SDavid du Colombier m = fsomode(mode&3);
2658ccd4a63SDavid du Colombier
2668ccd4a63SDavid du Colombier fspath(c, name, path);
2678ccd4a63SDavid du Colombier
2688ccd4a63SDavid du Colombier uif = c->aux;
2698ccd4a63SDavid du Colombier
2708ccd4a63SDavid du Colombier if(perm & DMDIR) {
2718ccd4a63SDavid du Colombier if(m)
2728ccd4a63SDavid du Colombier error(Eperm);
2738ccd4a63SDavid du Colombier
2748ccd4a63SDavid du Colombier if(mkdir(path, perm & 0777) < 0)
2758ccd4a63SDavid du Colombier error(strerror(errno));
2768ccd4a63SDavid du Colombier
2778ccd4a63SDavid du Colombier fd = open(path, 0);
2788ccd4a63SDavid du Colombier if(fd >= 0) {
2798ccd4a63SDavid du Colombier chmod(path, perm & 0777);
2808ccd4a63SDavid du Colombier chown(path, uif->uid, uif->uid);
2818ccd4a63SDavid du Colombier }
2828ccd4a63SDavid du Colombier close(fd);
2838ccd4a63SDavid du Colombier
2848ccd4a63SDavid du Colombier uif->dir = opendir(path);
2858ccd4a63SDavid du Colombier if(uif->dir == 0)
2868ccd4a63SDavid du Colombier error(strerror(errno));
2878ccd4a63SDavid du Colombier }
2888ccd4a63SDavid du Colombier else {
2898ccd4a63SDavid du Colombier fd = open(path, O_WRONLY|O_CREAT|O_TRUNC, 0666);
2908ccd4a63SDavid du Colombier if(fd >= 0) {
2918ccd4a63SDavid du Colombier if(m != 1) {
2928ccd4a63SDavid du Colombier close(fd);
2938ccd4a63SDavid du Colombier fd = open(path, m);
2948ccd4a63SDavid du Colombier }
2958ccd4a63SDavid du Colombier chmod(path, perm & 0777);
2968ccd4a63SDavid du Colombier chown(path, uif->uid, uif->gid);
2978ccd4a63SDavid du Colombier }
2988ccd4a63SDavid du Colombier if(fd < 0)
2998ccd4a63SDavid du Colombier error(strerror(errno));
3008ccd4a63SDavid du Colombier uif->fd = fd;
3018ccd4a63SDavid du Colombier }
3028ccd4a63SDavid du Colombier
3038ccd4a63SDavid du Colombier if(stat(path, &stbuf) < 0)
3048ccd4a63SDavid du Colombier error(strerror(errno));
3058ccd4a63SDavid du Colombier c->qid = fsqid(path, &stbuf);
3068ccd4a63SDavid du Colombier c->offset = 0;
3078ccd4a63SDavid du Colombier c->flag |= COPEN;
3088ccd4a63SDavid du Colombier c->mode = openmode(mode);
3098ccd4a63SDavid du Colombier }
3108ccd4a63SDavid du Colombier
3118ccd4a63SDavid du Colombier static void
fsclose(Chan * c)3128ccd4a63SDavid du Colombier fsclose(Chan *c)
3138ccd4a63SDavid du Colombier {
3148ccd4a63SDavid du Colombier Ufsinfo *uif;
3158ccd4a63SDavid du Colombier
3168ccd4a63SDavid du Colombier uif = c->aux;
3178ccd4a63SDavid du Colombier
3188ccd4a63SDavid du Colombier if(c->flag & COPEN) {
3198ccd4a63SDavid du Colombier if(c->qid.type & QTDIR)
3208ccd4a63SDavid du Colombier closedir(uif->dir);
3218ccd4a63SDavid du Colombier else
3228ccd4a63SDavid du Colombier close(uif->fd);
3238ccd4a63SDavid du Colombier }
3248ccd4a63SDavid du Colombier
3258ccd4a63SDavid du Colombier free(uif);
3268ccd4a63SDavid du Colombier }
3278ccd4a63SDavid du Colombier
3288ccd4a63SDavid du Colombier static long
fsread(Chan * c,void * va,long n,vlong offset)3298ccd4a63SDavid du Colombier fsread(Chan *c, void *va, long n, vlong offset)
3308ccd4a63SDavid du Colombier {
3318ccd4a63SDavid du Colombier int fd, r;
3328ccd4a63SDavid du Colombier Ufsinfo *uif;
3338ccd4a63SDavid du Colombier
3348ccd4a63SDavid du Colombier /*print("fsread %s\n", c2name(c));*/
3358ccd4a63SDavid du Colombier if(c->qid.type & QTDIR)
3368ccd4a63SDavid du Colombier return fsdirread(c, va, n, offset);
3378ccd4a63SDavid du Colombier
3388ccd4a63SDavid du Colombier uif = c->aux;
3398ccd4a63SDavid du Colombier qlock(&uif->oq);
3408ccd4a63SDavid du Colombier if(waserror()) {
3418ccd4a63SDavid du Colombier qunlock(&uif->oq);
3428ccd4a63SDavid du Colombier nexterror();
3438ccd4a63SDavid du Colombier }
3448ccd4a63SDavid du Colombier fd = uif->fd;
3458ccd4a63SDavid du Colombier if(uif->offset != offset) {
3468ccd4a63SDavid du Colombier r = lseek(fd, offset, 0);
3478ccd4a63SDavid du Colombier if(r < 0)
3488ccd4a63SDavid du Colombier error(strerror(errno));
3498ccd4a63SDavid du Colombier uif->offset = offset;
3508ccd4a63SDavid du Colombier }
3518ccd4a63SDavid du Colombier
3528ccd4a63SDavid du Colombier n = read(fd, va, n);
3538ccd4a63SDavid du Colombier if(n < 0)
3548ccd4a63SDavid du Colombier error(strerror(errno));
3558ccd4a63SDavid du Colombier
3568ccd4a63SDavid du Colombier uif->offset += n;
3578ccd4a63SDavid du Colombier qunlock(&uif->oq);
3588ccd4a63SDavid du Colombier poperror();
3598ccd4a63SDavid du Colombier
3608ccd4a63SDavid du Colombier return n;
3618ccd4a63SDavid du Colombier }
3628ccd4a63SDavid du Colombier
3638ccd4a63SDavid du Colombier static long
fswrite(Chan * c,void * va,long n,vlong offset)3648ccd4a63SDavid du Colombier fswrite(Chan *c, void *va, long n, vlong offset)
3658ccd4a63SDavid du Colombier {
3668ccd4a63SDavid du Colombier int fd, r;
3678ccd4a63SDavid du Colombier Ufsinfo *uif;
3688ccd4a63SDavid du Colombier
3698ccd4a63SDavid du Colombier uif = c->aux;
3708ccd4a63SDavid du Colombier
3718ccd4a63SDavid du Colombier qlock(&uif->oq);
3728ccd4a63SDavid du Colombier if(waserror()) {
3738ccd4a63SDavid du Colombier qunlock(&uif->oq);
3748ccd4a63SDavid du Colombier nexterror();
3758ccd4a63SDavid du Colombier }
3768ccd4a63SDavid du Colombier fd = uif->fd;
3778ccd4a63SDavid du Colombier if(uif->offset != offset) {
3788ccd4a63SDavid du Colombier r = lseek(fd, offset, 0);
3798ccd4a63SDavid du Colombier if(r < 0)
3808ccd4a63SDavid du Colombier error(strerror(errno));
3818ccd4a63SDavid du Colombier uif->offset = offset;
3828ccd4a63SDavid du Colombier }
3838ccd4a63SDavid du Colombier
3848ccd4a63SDavid du Colombier n = write(fd, va, n);
3858ccd4a63SDavid du Colombier if(n < 0)
3868ccd4a63SDavid du Colombier error(strerror(errno));
3878ccd4a63SDavid du Colombier
3888ccd4a63SDavid du Colombier uif->offset += n;
3898ccd4a63SDavid du Colombier qunlock(&uif->oq);
3908ccd4a63SDavid du Colombier poperror();
3918ccd4a63SDavid du Colombier
3928ccd4a63SDavid du Colombier return n;
3938ccd4a63SDavid du Colombier }
3948ccd4a63SDavid du Colombier
3958ccd4a63SDavid du Colombier static void
fsremove(Chan * c)3968ccd4a63SDavid du Colombier fsremove(Chan *c)
3978ccd4a63SDavid du Colombier {
3988ccd4a63SDavid du Colombier int n;
3998ccd4a63SDavid du Colombier char path[MAXPATH];
4008ccd4a63SDavid du Colombier
4018ccd4a63SDavid du Colombier fspath(c, 0, path);
4028ccd4a63SDavid du Colombier if(c->qid.type & QTDIR)
4038ccd4a63SDavid du Colombier n = rmdir(path);
4048ccd4a63SDavid du Colombier else
4058ccd4a63SDavid du Colombier n = remove(path);
4068ccd4a63SDavid du Colombier if(n < 0)
4078ccd4a63SDavid du Colombier error(strerror(errno));
4088ccd4a63SDavid du Colombier }
4098ccd4a63SDavid du Colombier
4108ccd4a63SDavid du Colombier int
fswstat(Chan * c,uchar * buf,int n)4118ccd4a63SDavid du Colombier fswstat(Chan *c, uchar *buf, int n)
4128ccd4a63SDavid du Colombier {
4138ccd4a63SDavid du Colombier Dir d;
4148ccd4a63SDavid du Colombier struct stat stbuf;
4158ccd4a63SDavid du Colombier char old[MAXPATH], new[MAXPATH];
4168ccd4a63SDavid du Colombier char strs[MAXPATH*3], *p;
4178ccd4a63SDavid du Colombier Ufsinfo *uif;
4188ccd4a63SDavid du Colombier
4198ccd4a63SDavid du Colombier if(convM2D(buf, n, &d, strs) != n)
4208ccd4a63SDavid du Colombier error(Ebadstat);
4218ccd4a63SDavid du Colombier
4228ccd4a63SDavid du Colombier fspath(c, 0, old);
4238ccd4a63SDavid du Colombier if(stat(old, &stbuf) < 0)
4248ccd4a63SDavid du Colombier error(strerror(errno));
4258ccd4a63SDavid du Colombier
4268ccd4a63SDavid du Colombier uif = c->aux;
4278ccd4a63SDavid du Colombier
428*58da3067SDavid du Colombier fspath(c, 0, old);
429*58da3067SDavid du Colombier if(~d.mode != 0 && (int)(d.mode&0777) != (int)(stbuf.st_mode&0777)) {
430*58da3067SDavid du Colombier if(chmod(old, d.mode&0777) < 0)
431*58da3067SDavid du Colombier error(strerror(errno));
432*58da3067SDavid du Colombier uif->mode &= ~0777;
433*58da3067SDavid du Colombier uif->mode |= d.mode&0777;
434*58da3067SDavid du Colombier }
435*58da3067SDavid du Colombier
4368ccd4a63SDavid du Colombier if(d.name[0] && strcmp(d.name, lastelem(c)) != 0) {
4378ccd4a63SDavid du Colombier fspath(c, 0, old);
4388ccd4a63SDavid du Colombier strcpy(new, old);
4398ccd4a63SDavid du Colombier p = strrchr(new, '/');
4408ccd4a63SDavid du Colombier strcpy(p+1, d.name);
4418ccd4a63SDavid du Colombier if(rename(old, new) < 0)
4428ccd4a63SDavid du Colombier error(strerror(errno));
4438ccd4a63SDavid du Colombier }
4448ccd4a63SDavid du Colombier
4458ccd4a63SDavid du Colombier /*
4468ccd4a63SDavid du Colombier p = name2pass(gid, d.gid);
4478ccd4a63SDavid du Colombier if(p == 0)
4488ccd4a63SDavid du Colombier error(Eunknown);
4498ccd4a63SDavid du Colombier
4508ccd4a63SDavid du Colombier if(p->id != stbuf.st_gid) {
4518ccd4a63SDavid du Colombier if(chown(old, stbuf.st_uid, p->id) < 0)
4528ccd4a63SDavid du Colombier error(strerror(errno));
4538ccd4a63SDavid du Colombier
4548ccd4a63SDavid du Colombier uif->gid = p->id;
4558ccd4a63SDavid du Colombier }
4568ccd4a63SDavid du Colombier */
4578ccd4a63SDavid du Colombier return n;
4588ccd4a63SDavid du Colombier }
4598ccd4a63SDavid du Colombier
4608ccd4a63SDavid du Colombier static Qid
fsqid(char * p,struct stat * st)4618ccd4a63SDavid du Colombier fsqid(char *p, struct stat *st)
4628ccd4a63SDavid du Colombier {
4638ccd4a63SDavid du Colombier Qid q;
4648ccd4a63SDavid du Colombier int dev;
4658ccd4a63SDavid du Colombier ulong h;
4668ccd4a63SDavid du Colombier static int nqdev;
4678ccd4a63SDavid du Colombier static uchar *qdev;
4688ccd4a63SDavid du Colombier
4698ccd4a63SDavid du Colombier if(qdev == 0)
4708ccd4a63SDavid du Colombier qdev = mallocz(65536U, 1);
4718ccd4a63SDavid du Colombier
4728ccd4a63SDavid du Colombier q.type = 0;
4738ccd4a63SDavid du Colombier if((st->st_mode&S_IFMT) == S_IFDIR)
4748ccd4a63SDavid du Colombier q.type = QTDIR;
4758ccd4a63SDavid du Colombier
4768ccd4a63SDavid du Colombier dev = st->st_dev & 0xFFFFUL;
4778ccd4a63SDavid du Colombier if(qdev[dev] == 0)
4788ccd4a63SDavid du Colombier qdev[dev] = ++nqdev;
4798ccd4a63SDavid du Colombier
4808ccd4a63SDavid du Colombier h = 0;
4818ccd4a63SDavid du Colombier while(*p != '\0')
4828ccd4a63SDavid du Colombier h += *p++ * 13;
4838ccd4a63SDavid du Colombier
4848ccd4a63SDavid du Colombier q.path = (vlong)qdev[dev]<<32;
4858ccd4a63SDavid du Colombier q.path |= h;
4868ccd4a63SDavid du Colombier q.vers = st->st_mtime;
4878ccd4a63SDavid du Colombier
4888ccd4a63SDavid du Colombier return q;
4898ccd4a63SDavid du Colombier }
4908ccd4a63SDavid du Colombier
4918ccd4a63SDavid du Colombier static void
fspath(Chan * c,char * ext,char * path)4928ccd4a63SDavid du Colombier fspath(Chan *c, char *ext, char *path)
4938ccd4a63SDavid du Colombier {
4948ccd4a63SDavid du Colombier strcpy(path, base);
4958ccd4a63SDavid du Colombier strcat(path, "/");
4968ccd4a63SDavid du Colombier strcat(path, uc2name(c));
4978ccd4a63SDavid du Colombier if(ext){
4988ccd4a63SDavid du Colombier strcat(path, "/");
4998ccd4a63SDavid du Colombier strcat(path, ext);
5008ccd4a63SDavid du Colombier }
5018ccd4a63SDavid du Colombier cleanname(path);
5028ccd4a63SDavid du Colombier }
5038ccd4a63SDavid du Colombier
5048ccd4a63SDavid du Colombier static int
isdots(char * name)5058ccd4a63SDavid du Colombier isdots(char *name)
5068ccd4a63SDavid du Colombier {
5078ccd4a63SDavid du Colombier if(name[0] != '.')
5088ccd4a63SDavid du Colombier return 0;
5098ccd4a63SDavid du Colombier if(name[1] == '\0')
5108ccd4a63SDavid du Colombier return 1;
5118ccd4a63SDavid du Colombier if(name[1] != '.')
5128ccd4a63SDavid du Colombier return 0;
5138ccd4a63SDavid du Colombier if(name[2] == '\0')
5148ccd4a63SDavid du Colombier return 1;
5158ccd4a63SDavid du Colombier return 0;
5168ccd4a63SDavid du Colombier }
5178ccd4a63SDavid du Colombier
5188ccd4a63SDavid du Colombier static int
p9readdir(char * name,Ufsinfo * uif)5198ccd4a63SDavid du Colombier p9readdir(char *name, Ufsinfo *uif)
5208ccd4a63SDavid du Colombier {
5218ccd4a63SDavid du Colombier struct dirent *de;
5228ccd4a63SDavid du Colombier
5238ccd4a63SDavid du Colombier if(uif->nextname[0]){
5248ccd4a63SDavid du Colombier strcpy(name, uif->nextname);
5258ccd4a63SDavid du Colombier uif->nextname[0] = 0;
5268ccd4a63SDavid du Colombier return 1;
5278ccd4a63SDavid du Colombier }
5288ccd4a63SDavid du Colombier
5298ccd4a63SDavid du Colombier de = readdir(uif->dir);
5308ccd4a63SDavid du Colombier if(de == NULL)
5318ccd4a63SDavid du Colombier return 0;
5328ccd4a63SDavid du Colombier
5338ccd4a63SDavid du Colombier strcpy(name, de->d_name);
5348ccd4a63SDavid du Colombier return 1;
5358ccd4a63SDavid du Colombier }
5368ccd4a63SDavid du Colombier
5378ccd4a63SDavid du Colombier static ulong
fsdirread(Chan * c,uchar * va,int count,ulong offset)5388ccd4a63SDavid du Colombier fsdirread(Chan *c, uchar *va, int count, ulong offset)
5398ccd4a63SDavid du Colombier {
5408ccd4a63SDavid du Colombier int i;
5418ccd4a63SDavid du Colombier Dir d;
5428ccd4a63SDavid du Colombier long n;
5438ccd4a63SDavid du Colombier char de[NAME_MAX];
5448ccd4a63SDavid du Colombier struct stat stbuf;
5458ccd4a63SDavid du Colombier char path[MAXPATH], dirpath[MAXPATH];
5468ccd4a63SDavid du Colombier Ufsinfo *uif;
5478ccd4a63SDavid du Colombier
5488ccd4a63SDavid du Colombier /*print("fsdirread %s\n", c2name(c));*/
5498ccd4a63SDavid du Colombier i = 0;
5508ccd4a63SDavid du Colombier uif = c->aux;
5518ccd4a63SDavid du Colombier
5528ccd4a63SDavid du Colombier errno = 0;
5538ccd4a63SDavid du Colombier if(uif->offset != offset) {
5548ccd4a63SDavid du Colombier if(offset != 0)
5558ccd4a63SDavid du Colombier error("bad offset in fsdirread");
5568ccd4a63SDavid du Colombier uif->offset = offset; /* sync offset */
5578ccd4a63SDavid du Colombier uif->nextname[0] = 0;
5588ccd4a63SDavid du Colombier rewinddir(uif->dir);
5598ccd4a63SDavid du Colombier }
5608ccd4a63SDavid du Colombier
5618ccd4a63SDavid du Colombier fspath(c, 0, dirpath);
5628ccd4a63SDavid du Colombier
5638ccd4a63SDavid du Colombier while(i+BIT16SZ < count) {
5648ccd4a63SDavid du Colombier if(!p9readdir(de, uif))
5658ccd4a63SDavid du Colombier break;
5668ccd4a63SDavid du Colombier
5678ccd4a63SDavid du Colombier if(de[0]==0 || isdots(de))
5688ccd4a63SDavid du Colombier continue;
5698ccd4a63SDavid du Colombier
5708ccd4a63SDavid du Colombier d.name = de;
5718ccd4a63SDavid du Colombier sprint(path, "%s/%s", dirpath, de);
5728ccd4a63SDavid du Colombier memset(&stbuf, 0, sizeof stbuf);
5738ccd4a63SDavid du Colombier
5748ccd4a63SDavid du Colombier if(stat(path, &stbuf) < 0) {
5758ccd4a63SDavid du Colombier /* fprint(2, "dir: bad path %s\n", path); */
5768ccd4a63SDavid du Colombier /* but continue... probably a bad symlink */
5778ccd4a63SDavid du Colombier }
5788ccd4a63SDavid du Colombier
5798ccd4a63SDavid du Colombier d.uid = "unknown";
5808ccd4a63SDavid du Colombier d.gid = "unknown";
5818ccd4a63SDavid du Colombier d.muid = "unknown";
5828ccd4a63SDavid du Colombier d.qid = fsqid(path, &stbuf);
5838ccd4a63SDavid du Colombier d.mode = (d.qid.type<<24)|(stbuf.st_mode&0777);
5848ccd4a63SDavid du Colombier d.atime = stbuf.st_atime;
5858ccd4a63SDavid du Colombier d.mtime = stbuf.st_mtime;
5868ccd4a63SDavid du Colombier d.length = stbuf.st_size;
5878ccd4a63SDavid du Colombier d.type = 'U';
5888ccd4a63SDavid du Colombier d.dev = c->dev;
5898ccd4a63SDavid du Colombier n = convD2M(&d, (uchar*)va+i, count-i);
5908ccd4a63SDavid du Colombier if(n == BIT16SZ){
5918ccd4a63SDavid du Colombier strcpy(uif->nextname, de);
5928ccd4a63SDavid du Colombier break;
5938ccd4a63SDavid du Colombier }
5948ccd4a63SDavid du Colombier i += n;
5958ccd4a63SDavid du Colombier }
5968ccd4a63SDavid du Colombier /*print("got %d\n", i);*/
5978ccd4a63SDavid du Colombier uif->offset += i;
5988ccd4a63SDavid du Colombier return i;
5998ccd4a63SDavid du Colombier }
6008ccd4a63SDavid du Colombier
6018ccd4a63SDavid du Colombier static int
fsomode(int m)6028ccd4a63SDavid du Colombier fsomode(int m)
6038ccd4a63SDavid du Colombier {
6048ccd4a63SDavid du Colombier switch(m) {
6058ccd4a63SDavid du Colombier case 0: /* OREAD */
6068ccd4a63SDavid du Colombier case 3: /* OEXEC */
6078ccd4a63SDavid du Colombier return 0;
6088ccd4a63SDavid du Colombier case 1: /* OWRITE */
6098ccd4a63SDavid du Colombier return 1;
6108ccd4a63SDavid du Colombier case 2: /* ORDWR */
6118ccd4a63SDavid du Colombier return 2;
6128ccd4a63SDavid du Colombier }
6138ccd4a63SDavid du Colombier error(Ebadarg);
6148ccd4a63SDavid du Colombier return 0;
6158ccd4a63SDavid du Colombier }
6168ccd4a63SDavid du Colombier
6178ccd4a63SDavid du Colombier Dev fsdevtab = {
6188ccd4a63SDavid du Colombier 'U',
6198ccd4a63SDavid du Colombier "fs",
6208ccd4a63SDavid du Colombier
6218ccd4a63SDavid du Colombier devreset,
6228ccd4a63SDavid du Colombier devinit,
6238ccd4a63SDavid du Colombier devshutdown,
6248ccd4a63SDavid du Colombier fsattach,
6258ccd4a63SDavid du Colombier fswalk,
6268ccd4a63SDavid du Colombier fsstat,
6278ccd4a63SDavid du Colombier fsopen,
6288ccd4a63SDavid du Colombier fscreate,
6298ccd4a63SDavid du Colombier fsclose,
6308ccd4a63SDavid du Colombier fsread,
6318ccd4a63SDavid du Colombier devbread,
6328ccd4a63SDavid du Colombier fswrite,
6338ccd4a63SDavid du Colombier devbwrite,
6348ccd4a63SDavid du Colombier fsremove,
6358ccd4a63SDavid du Colombier fswstat,
6368ccd4a63SDavid du Colombier };
637