53 lines
1 KiB
C
53 lines
1 KiB
C
#include <u.h>
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#include <libc.h>
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#include <authsrv.h>
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#include <bio.h>
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#include <ndb.h>
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int
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authdial(char *netroot, char *dom)
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{
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Ndbtuple *t, *nt;
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char *p;
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int rv;
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if(dom == nil)
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/* look for one relative to my machine */
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return dial(netmkaddr("$auth", nil, "ticket"), nil, nil, nil);
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/* look up an auth server in an authentication domain */
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p = csgetvalue(netroot, "authdom", dom, "auth", &t);
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/* if that didn't work, just try the IP domain */
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if(p == nil)
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p = csgetvalue(netroot, "dom", dom, "auth", &t);
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/*
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* if that didn't work, try p9auth.$dom. this is very helpful if
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* you can't edit /lib/ndb.
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*/
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if(p == nil) {
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p = smprint("p9auth.%s", dom);
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if(p == nil)
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return -1;
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t = ndbnew("auth", p);
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}
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free(p);
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/*
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* allow multiple auth= attributes for backup auth servers,
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* try each one in order.
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*/
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rv = -1;
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for(nt = t; nt != nil; nt = nt->entry) {
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if(strcmp(nt->attr, "auth") == 0) {
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rv = dial(netmkaddr(nt->val, nil, "ticket"), nil, nil, nil);
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if(rv >= 0)
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break;
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}
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}
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ndbfree(t);
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return rv;
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}
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