jehanne/sys/src/cmd/auth/rsa2csr.c

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#include <u.h>
#include <libc.h>
#include <bio.h>
#include <auth.h>
#include <mp.h>
#include <libsec.h>
#include "rsa2any.h"
void
usage(void)
{
fprint(2, "usage: aux/rsa2csr 'C=US ...CN=xxx' [key]\n");
exits("usage");
}
void
main(int argc, char **argv)
{
int len;
uint8_t *cert;
RSApriv *key;
fmtinstall('B', mpfmt);
fmtinstall('H', encodefmt);
ARGBEGIN{
default:
usage();
}ARGEND
if(argc != 1 && argc != 2)
usage();
if((key = getrsakey(argc-1, argv+1, 1, nil)) == nil)
sysfatal("%r");
cert = X509rsareq(key, argv[0], &len);
if(cert == nil)
sysfatal("X509rsareq: %r");
write(1, cert, len);
exits(0);
}