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sshfs(4): replace the much maligned -r option

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This commit is contained in:
aiju 2018-05-27 11:06:07 +00:00
parent 2b5dfee06c
commit 41013392a1
2 changed files with 48 additions and 23 deletions
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21
sys/man/4/sshfs
View file

@ -82,8 +82,6 @@ and
.B -b
have the same function as they do with
.IR mount .
The default remote root is the user's home directory but can be changed with
.BR -r .
.PP
If
.B -s
@ -92,11 +90,20 @@ it will post itself in
.IR srv (3)
with service name
.IR service .
If the service file is mounted, the
.IR attach (5)
name can be used to specify which directory on the remote host will be mounted.
If it is omitted or empty, the user's home directory is used.
Relative paths are also relative to this directory.
If the service file is mounted, the attach name (the third argument to
.IR mount (1)) can be used to specify which directory on the remote host will be mounted.
.PP
By default, relative paths are assumed relative to the user's home directory.
The
.B -r
option can be used to specify an alternative base for relative paths.
The initial mount at
.B -m
also uses this directory.
If an attach name starts with
.BR ~ ,
the user's home directory is substituted for
.BR ~ .
.PP
Since the only supported version 3 of the SFTP protocol has no way to look up numeric user and group IDs,
.I sshfs

50
sys/src/cmd/sshfs.c
View file

@ -600,6 +600,7 @@ attrfixupqid(Qid *qid)
if(flags & SSH_FILEXFER_ATTR_PERMISSIONS){
if(p + 4 > rxpkt + rxlen) return -1;
if((GET4(p) & 0170000) != 0040000) qid->type = 0;
else qid->type = QTDIR;
p += 4;
}
if(flags & SSH_FILEXFER_ATTR_ACMODTIME){
@ -722,21 +723,40 @@ sshfsattach(Req *r)
{
SFid *sf;
if(r->ifcall.aname != nil && *r->ifcall.aname != 0 && r->aux == nil){
if(r->aux == nil){
sf = emalloc9p(sizeof(SFid));
if(r->ifcall.aname != nil)
switch(*r->ifcall.aname){
case '~':
switch(r->ifcall.aname[1]){
case 0: sf->fn = estrdup9p("."); break;
case '/': sf->fn = estrdup9p(r->ifcall.aname + 2); break;
default:
free(sf);
respond(r, "invalid attach name");
return;
}
break;
case '/':
sf->fn = estrdup9p(r->ifcall.aname);
break;
case 0:
sf->fn = estrdup9p(root);
break;
default:
sf->fn = pathcat(root, r->ifcall.aname);
}
else
sf->fn = estrdup9p(root);
r->fid->aux = sf;
submitreq(r);
return;
}else{
sf = r->fid->aux;
sf->qid = (Qid){qidcalc(sf->fn), 0, QTDIR};
r->ofcall.qid = sf->qid;
r->fid->qid = sf->qid;
respond(r, nil);
}
sf = emalloc9p(sizeof(SFid));
if(r->ifcall.aname != nil && *r->ifcall.aname != 0)
sf->fn = estrdup9p(r->ifcall.aname);
else
sf->fn = estrdup9p(root);
root = ".";
sf->qid = (Qid){qidcalc(sf->fn), 0, QTDIR};
r->ofcall.qid = sf->qid;
r->fid->qid = sf->qid;
r->fid->aux = sf;
respond(r, nil);
}
void
@ -783,7 +803,7 @@ sendproc(void *)
sf = r->req->fid != nil ? r->req->fid->aux : nil;
switch(r->req->ifcall.type){
case Tattach:
sendpkt("bus", SSH_FXP_STAT, r->reqid, r->req->ifcall.aname, strlen(r->req->ifcall.aname));
sendpkt("bus", SSH_FXP_STAT, r->reqid, sf->fn, strlen(sf->fn));
break;
case Twalk:
sendpkt("bus", SSH_FXP_STAT, r->reqid, r->req->aux, strlen(r->req->aux));
@ -1364,8 +1384,6 @@ threadmain(int argc, char **argv)
sshfssrv.wstat = nil;
sshfssrv.remove = nil;
}
if(mtpt == nil)
root = ".";
if(pflag){
rdfd = 0;