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1 #include <u.h>2 #include <libc.h>3 #include <auth.h>4 #include <mp.h>5 #include <libsec.h>6 #include "rsa2any.h"8 void9 usage(void)10 {11 fprint(2, "usage: auth/dsa2ssh [-c comment] [file]\n");12 exits("usage");13 }15 void16 main(int argc, char **argv)17 {18 DSApriv *k;19 char *comment;20 uchar buf[8192], *p;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 }ARGEND33 if(argc > 1)34 usage();36 if((k = getdsakey(argc, argv, 0, nil)) == nil)37 sysfatal("%r");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 }