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- markus@cvs.openbsd.org 2002/06/05 16:08:07 

[ssh-agent.1 ssh-agent.c]
     '-a bind_address' binds the agent to user-specified unix-domain
     socket instead of /tmp/ssh-XXXXXXXX/agent.<pid>; ok djm@ (some time ago).
This commit is contained in:
Ben Lindstrom 2002-06-06 21:46:08 +00:00
parent 22fa01cdea
commit b7788f3ebe
4 changed files with 37 additions and 14 deletions
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6
ChangeLog
View File

@ -102,6 +102,10 @@
[ssh-agent.1 ssh-agent.c]
'-a bind_address' binds the agent to user-specified unix-domain
socket instead of /tmp/ssh-XXXXXXXX/agent.<pid>; ok djm@ (some time ago).
- markus@cvs.openbsd.org 2002/06/05 16:08:07
[ssh-agent.1 ssh-agent.c]
'-a bind_address' binds the agent to user-specified unix-domain
socket instead of /tmp/ssh-XXXXXXXX/agent.<pid>; ok djm@ (some time ago).
20020604
- (stevesk) [channels.c] bug #164 patch from YOSHIFUJI Hideaki (changed
@ -786,4 +790,4 @@
- (stevesk) entropy.c: typo in debug message
- (djm) ssh-keygen -i needs seeded RNG; report from markus@
$Id: ChangeLog,v 1.2171 2002/06/06 21:46:07 mouring Exp $
$Id: ChangeLog,v 1.2172 2002/06/06 21:46:57 mouring Exp $

5
ssh-add.1
View File

@ -1,4 +1,4 @@
.\" $OpenBSD: ssh-add.1,v 1.30 2002/02/04 20:41:16 stevesk Exp $
.\" $OpenBSD: ssh-add.1,v 1.31 2002/06/05 16:35:45 markus Exp $
.\"
.\" -*- nroff -*-
.\"
@ -129,6 +129,9 @@ or related script.
may be necessary to redirect the input from
.Pa /dev/null
to make this work.)
.It Ev SSH_AUTH_SOCK
Identifies the path of a unix-domain socket used to communicate with the
agent.
.El
.Sh DIAGNOSTICS
Exit status is 0 on success, 1 if the specified command fails,

9
ssh-agent.1
View File

@ -1,4 +1,4 @@
.\" $OpenBSD: ssh-agent.1,v 1.31 2002/02/04 20:41:16 stevesk Exp $
.\" $OpenBSD: ssh-agent.1,v 1.32 2002/06/05 16:08:07 markus Exp $
.\"
.\" Author: Tatu Ylonen <ylo@cs.hut.fi>
.\" Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -42,6 +42,7 @@
.Nd authentication agent
.Sh SYNOPSIS
.Nm ssh-agent
.Op Fl a Ar bind_address
.Op Fl c Li | Fl s
.Op Fl d
.Op Ar command Op Ar args ...
@ -64,6 +65,11 @@ machines using
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl a Ar bind_address
Bind the agent to the unix-domain socket
.Ar bind_address .
The default is
.Pa /tmp/ssh-XXXXXXXX/agent.<pid> .
.It Fl c
Generate C-shell commands on
.Dv stdout .
@ -135,7 +141,6 @@ by the agent, and the result will be returned to the requester.
This way, private keys are not exposed to clients using the agent.
.Pp
A unix-domain socket is created
.Pq Pa /tmp/ssh-XXXXXXXX/agent.<pid> ,
and the name of this socket is stored in the
.Ev SSH_AUTH_SOCK
environment

31
ssh-agent.c
View File

@ -35,7 +35,7 @@
#include "includes.h"
#include "openbsd-compat/fake-queue.h"
RCSID("$OpenBSD: ssh-agent.c,v 1.85 2002/04/02 11:49:39 markus Exp $");
RCSID("$OpenBSD: ssh-agent.c,v 1.86 2002/06/05 16:08:07 markus Exp $");
#include <openssl/evp.h>
#include <openssl/md5.h>
@ -803,6 +803,7 @@ usage(void)
fprintf(stderr, " -s Generate Bourne shell commands on stdout.\n");
fprintf(stderr, " -k Kill the current agent.\n");
fprintf(stderr, " -d Debug mode.\n");
fprintf(stderr, " -a socket Bind agent socket to given name.\n");
exit(1);
}
@ -819,6 +820,7 @@ main(int ac, char **av)
#endif
pid_t pid;
char *shell, *format, *pidstr, pidstrbuf[1 + 3 * sizeof pid];
char *agentsocket = NULL;
extern int optind;
fd_set *readsetp = NULL, *writesetp = NULL;
@ -829,9 +831,9 @@ main(int ac, char **av)
seed_rng();
#ifdef __GNU_LIBRARY__
while ((ch = getopt(ac, av, "+cdks")) != -1) {
while ((ch = getopt(ac, av, "+cdksa:")) != -1) {
#else /* __GNU_LIBRARY__ */
while ((ch = getopt(ac, av, "cdks")) != -1) {
while ((ch = getopt(ac, av, "cdksa:")) != -1) {
#endif /* __GNU_LIBRARY__ */
switch (ch) {
case 'c':
@ -852,6 +854,9 @@ main(int ac, char **av)
usage();
d_flag++;
break;
case 'a':
agentsocket = optarg;
break;
default:
usage();
}
@ -892,14 +897,20 @@ main(int ac, char **av)
}
parent_pid = getpid();
/* Create private directory for agent socket */
strlcpy(socket_dir, "/tmp/ssh-XXXXXXXX", sizeof socket_dir);
if (mkdtemp(socket_dir) == NULL) {
perror("mkdtemp: private socket dir");
exit(1);
if (agentsocket == NULL) {
/* Create private directory for agent socket */
strlcpy(socket_dir, "/tmp/ssh-XXXXXXXX", sizeof socket_dir);
if (mkdtemp(socket_dir) == NULL) {
perror("mkdtemp: private socket dir");
exit(1);
}
snprintf(socket_name, sizeof socket_name, "%s/agent.%d", socket_dir,
parent_pid);
} else {
/* Try to use specified agent socket */
socket_dir[0] = '\0';
strlcpy(socket_name, agentsocket, sizeof socket_name);
}
snprintf(socket_name, sizeof socket_name, "%s/agent.%d", socket_dir,
parent_pid);
/*
* Create socket early so it will exist before command gets run from