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<title>/usr/web/sources/contrib/maht/tlspipeclient.c - Plan 9 from Bell Labs</title>
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<span style="font-size: 10pt"><a href="/plan9/">Plan 9 from Bell Labs</a>’s /usr/web/sources/contrib/maht/tlspipeclient.c</span></p>
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Copyright © 2009 Alcatel-Lucent.<br />
Distributed under the
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<a href="/plan9/download.html">Download the Plan 9 distribution.</a>
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#include <u.h>
#include <libc.h>
#include <mp.h>
#include <libsec.h>
/*
this is just tlsclient bodged to accept data from pipes, if you use it on HTTP it waits until the server closes the connection.
*/
void
usage(void)
{
fprint(2, "usage: tlspipeclient [-t /sys/lib/tls/xxx] [-x /sys/lib/tls/xxx.exclude] dialstring\n");
exits("usage");
}
void
xfer(int from, int to)
{
char buf[12*1024];
int n;
while((n = read(from, buf, sizeof buf)) > 0)
if(write(to, buf, n) < 0)
break;
}
void
main(int argc, char **argv)
{
int fd, netfd;
uchar digest[20];
TLSconn conn;
char *addr, *file, *filex;
Thumbprint *thumb;
file = nil;
filex = nil;
thumb = nil;
ARGBEGIN{
case 't':
file = EARGF(usage());
break;
case 'x':
filex = EARGF(usage());
break;
default:
usage();
}ARGEND
if(argc != 1)
usage();
if(filex && !file)
sysfatal("specifying -x without -t is useless");
if(file){
thumb = initThumbprints(file, filex);
if(thumb == nil)
sysfatal("initThumbprints: %r");
}
addr = argv[0];
if((netfd = dial(addr, 0, 0, 0)) < 0)
sysfatal("dial %s: %r", addr);
memset(&conn, 0, sizeof conn);
fd = tlsClient(netfd, &conn);
if(fd < 0)
sysfatal("tlsclient: %r");
if(thumb){
if(conn.cert==nil || conn.certlen<=0)
sysfatal("server did not provide TLS certificate");
sha1(conn.cert, conn.certlen, digest, nil);
if(!okThumbprint(digest, thumb)){
fmtinstall('H', encodefmt);
sysfatal("server certificate %.*H not recognized", SHA1dlen, digest);
}
}
free(conn.cert);
close(netfd);
switch(rfork(RFPROC)){
case -1:
fprint(2, "%s: fork: %r\n", argv0);
exits("dial");
case 0:
xfer(0, fd);
break;
default:
xfer(fd, 1);
break;
}
exits(0);
}
# 8c tlspipeclient.c && 8l tlspipeclient.8 && mv 8.out tlspipeclient
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