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ssh_get_authentication_connection() gets its parameters from environment

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variables, so temporarily switch to the PAM environment before calling it.

Submitted by:	Takanori Saneto <sanewo@ba2.so-net.ne.jp>
This commit is contained in:
Dag-Erling Smørgrav 2002-02-04 17:15:44 +00:00
parent 985e77de7b
commit 12b6e9a089
1 changed files with 24 additions and 2 deletions
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26
lib/libpam/modules/pam_ssh/pam_ssh.c
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@ -481,8 +481,30 @@ pam_sm_open_session(pam_handle_t *pamh, int flags __unused, int argc, const char
PAM_LOG("Environment saved");
/* connect to the agent */
ac = ssh_get_authentication_connection();
/*
* Connect to the agent.
*
* XXX Because ssh_get_authentication_connection() gets the
* XXX agent parameters from the environment, we have to
* XXX temporarily replace the environment with the PAM
* XXX environment list. This is a hack.
*/
{
extern char **environ;
char **saved, **evp;
saved = environ;
if ((environ = pam_getenvlist(pamh)) == NULL) {
environ = saved;
syslog(LOG_ERR, "%s: %m", MODULE_NAME);
PAM_RETURN(PAM_BUF_ERR);
}
ac = ssh_get_authentication_connection();
for (evp = environ; *evp; evp++)
free(*evp);
free(environ);
environ = saved;
}
if (!ac) {
syslog(LOG_ERR, "%s: %s: %m", MODULE_NAME, agent_socket);
PAM_RETURN(PAM_SESSION_ERR);