tdsa2ssh.c - plan9port - [fork] Plan 9 from user space
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       ---
       tdsa2ssh.c (774B)
       ---
            1 #include <u.h>
            2 #include <libc.h>
            3 #include <auth.h>
            4 #include <mp.h>
            5 #include <libsec.h>
            6 #include "rsa2any.h"
            7 
            8 void
            9 usage(void)
           10 {
           11         fprint(2, "usage: auth/dsa2ssh [-c comment] [file]\n");
           12         exits("usage");
           13 }
           14 
           15 void
           16 main(int argc, char **argv)
           17 {
           18         DSApriv *k;
           19         char *comment;
           20         uchar buf[8192], *p;
           21 
           22         fmtinstall('B', mpfmt);
           23         fmtinstall('[', encodefmt);
           24         comment = "";
           25         ARGBEGIN{
           26         case 'c':
           27                 comment = EARGF(usage());
           28                 break;
           29         default:
           30                 usage();
           31         }ARGEND
           32 
           33         if(argc > 1)
           34                 usage();
           35 
           36         if((k = getdsakey(argc, argv, 0, nil)) == nil)
           37                 sysfatal("%r");
           38 
           39         p = buf;
           40         p = put4(p, 7);
           41         p = putn(p, "ssh-dss", 7);
           42         p = putmp2(p, k->pub.p);
           43         p = putmp2(p, k->pub.q);
           44         p = putmp2(p, k->pub.alpha);
           45         p = putmp2(p, k->pub.key);
           46         print("ssh-dss %.*[ %s\n", p-buf, buf, comment);
           47         exits(nil);
           48 }