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Code Issues Releases Activity

Implement server-side transaction TCP. (Has no effect on non-TTCP clients.)

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This commit is contained in:
Garrett Wollman 1995-12-17 20:25:28 +00:00
parent 802c953a44
commit dd07a8677b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=12908
1 changed files with 25 additions and 9 deletions
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34
libexec/fingerd/fingerd.c
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@ -38,12 +38,17 @@ static char copyright[] =
#endif /* not lint */
#ifndef lint
/*
static char sccsid[] = "@(#)fingerd.c 8.1 (Berkeley) 6/4/93";
*/
static const char rcsid[] =
"$Id$";
#endif /* not lint */
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
#include <errno.h>
@ -55,7 +60,7 @@ static char sccsid[] = "@(#)fingerd.c 8.1 (Berkeley) 6/4/93";
#include <strings.h>
#include "pathnames.h"
void err __P((const char *, ...));
void logerr __P((const char *, ...));
int
main(argc, argv)
@ -88,13 +93,13 @@ main(argc, argv)
break;
case '?':
default:
err("illegal option -- %c", ch);
logerr("illegal option -- %c", ch);
}
if (logging) {
sval = sizeof(sin);
if (getpeername(0, (struct sockaddr *)&sin, &sval) < 0)
err("getpeername: %s", strerror(errno));
logerr("getpeername: %s", strerror(errno));
if (hp = gethostbyaddr((char *)&sin.sin_addr.s_addr,
sizeof(sin.sin_addr.s_addr), AF_INET))
lp = hp->h_name;
@ -103,6 +108,17 @@ main(argc, argv)
syslog(LOG_NOTICE, "query from %s", lp);
}
/*
* Enable server-side Transaction TCP.
*/
{
int one = 1;
if (setsockopt(STDOUT_FILENO, IPPROTO_TCP, TCP_NOPUSH, &one,
sizeof one) < 0) {
logerr("setsockopt(TCP_NOPUSH) failed: %m");
}
}
if (!fgets(line, sizeof(line), stdin))
exit(1);
@ -137,7 +153,7 @@ main(argc, argv)
else
*comp = prog;
if (pipe(p) < 0)
err("pipe: %s", strerror(errno));
logerr("pipe: %s", strerror(errno));
switch(vfork()) {
case 0:
@ -147,14 +163,14 @@ main(argc, argv)
(void)close(p[1]);
}
execv(prog, comp);
err("execv: %s: %s", prog, strerror(errno));
logerr("execv: %s: %s", prog, strerror(errno));
_exit(1);
case -1:
err("fork: %s", strerror(errno));
logerr("fork: %s", strerror(errno));
}
(void)close(p[1]);
if (!(fp = fdopen(p[0], "r")))
err("fdopen: %s", strerror(errno));
logerr("fdopen: %s", strerror(errno));
while ((ch = getc(fp)) != EOF) {
if (ch == '\n')
putchar('\r');
@ -171,9 +187,9 @@ main(argc, argv)
void
#if __STDC__
err(const char *fmt, ...)
logerr(const char *fmt, ...)
#else
err(fmt, va_alist)
logerr(fmt, va_alist)
char *fmt;
va_dcl
#endif