You can't usually use printf("%s") on binary data because
it will stop at the first NULL. I've enclosed a simple
working sample.
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <unistd.h>
int
main(int argc, char **argv)
{
FILE *in;
void *buf;
struct stat st;
if (argc > 1) {
in = fopen(argv[1],"r");
} else {
in = fopen("file something","r");
}
if (!in) {
fprintf(stderr, "Could not open in!\n");
exit(1);
}
fstat(fileno(in),&st);
buf = malloc(st.st_size);
fread(buf,1,st.st_size,in);
fclose(in);
printf("Content-type: application/x-x509-user-cert\n"
"Content-length: %ld\n\n", st.st_size);
fwrite(buf, 1, st.st_size,stdout);
if (buf) free(buf);
return 0;
}
> -----Original Message-----
> From: alohaz [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, February 29, 2000 3:17 AM
> To: [EMAIL PROTECTED]
> Subject: Re: how to download a certificate to browser?
>
>
> Yes! the certificate signed by CA is in format of DER and
> stored in cert.result.
>
> now that section is as following to return the certificate to browser:
>
> CERT=fopen("/usr/local/ssl/certs/cert.result");
> printf(Content-Type: application/x-x509-user-cert\n\n");
> while ((ch=getc(CERT))!= EOF)
> result[i++] = ch;
> fclose(CERT);
> printf ("%s",result);
>
>
> the size of cert.result is 832, and i is 833. So I think I
> have had the content of cert.result
> is fully stored in result. however, printf ("%s",result) only
> output the first line of cert.result. How I can overcome this problem?
>
> Is there any C program to do the work of downloading a
> certificate to browser?
>
>
> Thanks a lot for the answer and help from you.
>
> ----- Original Message -----
> 发件人: Massimiliano Pala <[EMAIL PROTECTED]>
> 收件人: <[EMAIL PROTECTED]>
> 发送时间: 2000年2月27日 10:30
> 主题: Re: how to download a certificate to browser?
>
>
> > alohaz wrote:
> > >
> > > Thanks a lot to Robert,Mike and Massimiliano for your help.
> > >
> > > I got a some suggestion form Hirsch as following:
> > >
> > > I believe the problem is that the join can take multiple
> lines (if the cert is over multiple lines, and make them into
> one string), but the C++ code is including the newlines.
> > > I am not familiar with getline, I think fgets includes
> the newline.
> > > So my suggestion is check that you are not incorporating
> newlines in your concatenation.
> > >
> > > So I modified my program as:
> > >
> > > char result[2000],ch;
> > > int i=0;
> > > CERT=fopen("/usr/local/ssl/certs/cert.result");
> > > printf(Content-Type: application/x-x509-user-cert\n\n");
> > > while( ((ch=getc(CERT))!= EOF) && ((ch=getc(CERT))!= '\n') )
> > > result[i++] = ch;
> > > fclose(CERT);
> > > printf ("%s",result);
> > >
> > > I can only use
> > > print "Content-Type: application/x-x509-user-cert\n\n";
> > > in perl to have the certificate installed in browser.
> > >
> > > print "Content-Length: $len\n\n";
> > > is not necessary.
> > >
> > > But I still can not get certificate at browser although
> it has been signed by CA. What's more,
> > > strlen(result) is not equal to i. For example, i is 834
> but strlen(result) is 30. I do not know the reason.
> > >
> > > Can you offer any help? Thanks!
> >
> > Is the certificate you are sending in DER format ??? Please
> also do not strip
> > any \n char, you have to send the certificate in DER
> without modifying it... :-D
> >
> > Hope this will fix your problem.
> >
> > C'you,
> >
> > Massimiliano Pala ([EMAIL PROTECTED])
> ______________________________________________________________________
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