hgfs: allow "tip" as revision, do perm checking
This commit is contained in:
cinap_lenrek
parent
5f7342a461
commit
e715b511e0
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@ -147,10 +147,10 @@ fsmkqid(Qid *q, int level, void *aux)
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break;
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case Qtree:
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nd = aux;
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if(nd->hash){
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q->type = 0;
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} else {
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if(nd->down){
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q->type = QTDIR;
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} else {
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q->type = 0;
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}
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q->path = nd->path;
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q->vers = 0;
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@ -300,6 +300,8 @@ findrev(Revlog *rl, char *name)
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int n, i, rev;
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char *s;
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if(strcmp(name, "tip") == 0)
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return rl->nmap-1;
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rev = strtol(name, &s, 10);
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if(s > name && (*s == 0 || ispunct(*s)))
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return rev;
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@ -452,7 +454,18 @@ fsdestroyfid(Fid *fid)
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static void
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fsopen(Req *r)
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{
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respond(r, nil);
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Revfile *rf;
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rf = r->fid->aux;
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switch(r->ifcall.mode & 3){
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case OEXEC:
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if(rf->node == nil || rf->node->mode != 'x')
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break;
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case OREAD:
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respond(r, nil);
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return;
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}
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respond(r, "permission denied");
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}
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static int
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@ -495,95 +508,87 @@ static void
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fsread(Req *r)
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{
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Revfile *rf;
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char buf[MAXPATH];
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Revlog rl;
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char *s;
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int i, n;
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rf = r->fid->aux;
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if(r->fid->qid.type == QTDIR){
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switch(rf->level){
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default:
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respond(r, "bug in fsread");
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switch(rf->level){
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case Qroot:
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revlogupdate(&changelog);
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revlogupdate(&manifest);
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dirread9p(r, rootgen, nil);
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respond(r, nil);
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return;
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case Qrev:
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dirread9p(r, revgen, rf->info);
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respond(r, nil);
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return;
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case Qrev1:
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case Qrev2:
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s = nil;
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if(rf->buf)
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goto Strgen;
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if((i = hashrev(&changelog, rf->info->chash)) >= 0){
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if(rf->level == Qrev1)
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i = changelog.map[i].p1rev;
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else
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i = changelog.map[i].p2rev;
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if(i >= 0)
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snprint(s = buf, sizeof(buf), "%d.%H", i, changelog.map[i].hash);
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}
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goto Strgen;
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case Qlog:
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if(rf->fd >= 0)
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goto Fdgen;
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if((rf->fd = revlogopentemp(&changelog, hashrev(&changelog, rf->info->chash))) < 0){
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responderror(r);
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return;
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case Qroot:
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revlogupdate(&changelog);
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revlogupdate(&manifest);
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dirread9p(r, rootgen, nil);
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respond(r, nil);
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return;
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case Qrev:
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dirread9p(r, revgen, rf->info);
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respond(r, nil);
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return;
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case Qtree:
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case Qfiles:
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case Qchanges:
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}
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goto Fdgen;
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case Qwho:
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s = rf->info->who;
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goto Strgen;
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case Qwhy:
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s = rf->info->why;
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Strgen:
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if(rf->buf == nil)
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rf->buf = s ? smprint("%s\n", s) : estrdup9p("");
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readstr(r, rf->buf);
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respond(r, nil);
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return;
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case Qtree:
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if(rf->node->down){
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case Qfiles:
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case Qchanges:
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dirread9p(r, treegen, rf->node->down);
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respond(r, nil);
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return;
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}
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} else {
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char buf[MAXPATH];
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Revlog rl;
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char *s;
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int i, n;
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switch(rf->level){
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default:
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respond(r, "bug in fsread");
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if(rf->fd >= 0)
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goto Fdgen;
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nodepath(seprint(buf, buf+sizeof(buf), ".hg/store/data"), buf+sizeof(buf), rf->node);
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if(revlogopen(&rl, buf, OREAD) < 0){
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responderror(r);
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return;
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case Qlog:
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if(rf->fd >= 0)
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break;
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if((rf->fd = revlogopentemp(&changelog, hashrev(&changelog, rf->info->chash))) < 0){
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responderror(r);
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return;
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}
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break;
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case Qrev1:
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case Qrev2:
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s = nil;
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if((i = hashrev(&changelog, rf->info->chash)) >= 0){
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if(rf->level == Qrev1)
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i = changelog.map[i].p1rev;
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else
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i = changelog.map[i].p2rev;
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if(i >= 0)
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snprint(s = buf, sizeof(buf), "%d.%H", i, changelog.map[i].hash);
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}
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goto Strgen;
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case Qwho:
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s = rf->info->who;
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goto Strgen;
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case Qwhy:
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s = rf->info->why;
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Strgen:
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if(rf->buf == nil)
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rf->buf = s ? smprint("%s\n", s) : estrdup9p("");
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readstr(r, rf->buf);
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respond(r, nil);
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return;
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case Qtree:
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if(rf->fd >= 0)
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break;
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nodepath(seprint(buf, buf+sizeof(buf), ".hg/store/data"), buf+sizeof(buf), rf->node);
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if(revlogopen(&rl, buf, OREAD) < 0){
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responderror(r);
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return;
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}
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if((rf->fd = revlogopentemp(&rl, hashrev(&rl, rf->node->hash))) < 0){
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responderror(r);
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revlogclose(&rl);
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return;
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}
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revlogclose(&rl);
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break;
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}
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if((rf->fd = revlogopentemp(&rl, hashrev(&rl, rf->node->hash))) < 0){
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responderror(r);
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revlogclose(&rl);
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return;
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}
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revlogclose(&rl);
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Fdgen:
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if((n = pread(rf->fd, r->ofcall.data, r->ifcall.count, r->ifcall.offset)) < 0){
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responderror(r);
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return;
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}
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r->ofcall.count = n;
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respond(r, nil);
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return;
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}
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respond(r, "bug in fsread");
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}
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Srv fs =
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