ref: 1b09060f468f530af2f4ef75441a40084e912e54
dir: /sys/src/cmd/auth/rsa2pub.c/
#include <u.h> #include <libc.h> #include <auth.h> #include <mp.h> #include <libsec.h> #include "rsa2any.h" void usage(void) { fprint(2, "usage: auth/rsa2pub [file]\n"); exits("usage"); } void main(int argc, char **argv) { RSApriv *key; Attr *a; char *s; int n; fmtinstall('A', _attrfmt); fmtinstall('B', mpfmt); quotefmtinstall(); ARGBEGIN{ default: usage(); }ARGEND if(argc > 1) usage(); if((key = getrsakey(argc, argv, 0, &a)) == nil) sysfatal("%r"); if((s = smprint("key %A size=%d ek=%B n=%B\n", a, mpsignif(key->pub.n), key->pub.ek, key->pub.n)) == nil) sysfatal("smprint: %r"); n = strlen(s); if(write(1, s, n) != n) sysfatal("write: %r"); exits(nil); }