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e2101afed1
freebsd-ports/security/ssh/files/patch-af
Andrey A. Chernov e2101afed1 Fix 3 error with login.conf 
1) pw->pw_class was always zero since not copied
2) login_getuserclass() used instead of login_getclass(), so
default class always returned
3) env pointer can be redefined at the moment of setusercontext() call
1997-05-02 20:20:49 +00:00

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*** sshd.c.orig Wed Apr 23 04:40:08 1997
--- sshd.c Sat May 3 00:04:30 1997
***************
*** 400,405 ****
--- 400,409 ----
#include "firewall.h" /* TIS authsrv authentication */
#endif
+ #ifdef HAVE_LOGIN_CAP_H
+ #include <login_cap.h>
+ #endif
+
#ifdef _PATH_BSHELL
#define DEFAULT_SHELL _PATH_BSHELL
#else
***************
*** 1698,1703 ****
--- 1702,1710 ----
memset(&pwcopy, 0, sizeof(pwcopy));
pwcopy.pw_name = xstrdup(pw->pw_name);
pwcopy.pw_passwd = xstrdup(pw->pw_passwd);
+ #ifdef HAVE_LOGIN_CAP_H
+ pwcopy.pw_class = xstrdup(pw->pw_class);
+ #endif
pwcopy.pw_uid = pw->pw_uid;
pwcopy.pw_gid = pw->pw_gid;
pwcopy.pw_dir = xstrdup(pw->pw_dir);
***************
*** 2654,2659 ****
--- 2661,2669 ----
struct sockaddr_in from;
int fromlen;
struct pty_cleanup_context cleanup_context;
+ #ifdef HAVE_LOGIN_CAP_H
+ login_cap_t *lc;
+ #endif
/* We no longer need the child running on user's privileges. */
userfile_uninit();
***************
*** 2725,2735 ****
record_login(pid, ttyname, pw->pw_name, pw->pw_uid, hostname,
&from);
/* Check if .hushlogin exists. Note that we cannot use userfile
here because we are in the child. */
sprintf(line, "%.200s/.hushlogin", pw->pw_dir);
quiet_login = stat(line, &st) >= 0;
!
/* If the user has logged in before, display the time of last login.
However, don't display anything extra if a command has been
specified (so that ssh can be used to execute commands on a remote
--- 2735,2753 ----
record_login(pid, ttyname, pw->pw_name, pw->pw_uid, hostname,
&from);
+ #ifdef HAVE_LOGIN_CAP_H
+ lc = login_getclass(pw);
+ #endif
+
/* Check if .hushlogin exists. Note that we cannot use userfile
here because we are in the child. */
sprintf(line, "%.200s/.hushlogin", pw->pw_dir);
quiet_login = stat(line, &st) >= 0;
!
! #ifdef HAVE_LOGIN_CAP_H
! quiet_login = login_getcapbool(lc, "hushlogin", quiet_login);
! #endif
!
/* If the user has logged in before, display the time of last login.
However, don't display anything extra if a command has been
specified (so that ssh can be used to execute commands on a remote
***************
*** 2749,2754 ****
--- 2767,2795 ----
printf("Last login: %s from %s\r\n", time_string, buf);
}
+ #ifdef __FreeBSD__
+ if (command == NULL && !quiet_login)
+ {
+ #ifdef HAVE_LOGIN_CAP_H
+ char *cw;
+ FILE *f;
+
+ cw = login_getcapstr(lc, "copyright", NULL, NULL);
+ if (cw != NULL && (f = fopen(cw, "r")) != NULL)
+ {
+ while (fgets(line, sizeof(line), f))
+ fputs(line, stdout);
+ fclose(f);
+ }
+ else
+ #endif
+ printf("%s\n\t%s %s\n\n",
+ "Copyright (c) 1980, 1983, 1986, 1988, 1990, 1991, 1993, 1994",
+ "The Regents of the University of California. ",
+ "All rights reserved.");
+ }
+ #endif
+
/* Print /etc/motd unless a command was specified or printing it was
disabled in server options. Note that some machines appear to
print it in /etc/profile or similar. */
***************
*** 2758,2764 ****
--- 2799,2809 ----
FILE *f;
/* Print /etc/motd if it exists. */
+ #ifdef HAVE_LOGIN_CAP_H
+ f = fopen(login_getcapstr(lc, "welcome", "/etc/motd", "/etc/motd"), "r");
+ #else
f = fopen("/etc/motd", "r");
+ #endif
if (f)
{
while (fgets(line, sizeof(line), f))
***************
*** 2766,2771 ****
--- 2811,2839 ----
fclose(f);
}
}
+ #ifdef __FreeBSD__
+ if (command == NULL && !quiet_login)
+ {
+ #ifdef broken_HAVE_LOGIN_CAP_H
+ char *mp = getenv("MAIL");
+
+ if (mp != NULL)
+ {
+ strncpy(line, mp, sizeof line);
+ line[sizeof line - 1] = '\0';
+ }
+ else
+ #endif
+ sprintf(line, "%s/%.200s", _PATH_MAILDIR, pw->pw_name);
+ if (stat(line, &st) == 0 && st.st_size != 0)
+ printf("You have %smail.\n",
+ (st.st_mtime > st.st_atime) ? "new " : "");
+ }
+ #endif
+
+ #ifdef HAVE_LOGIN_CAP_H
+ login_close(lc);
+ #endif
/* Do common processing for the child, such as execing the command. */
do_child(command, pw, term, display, auth_proto, auth_data, ttyname);
***************
*** 3017,3023 ****
char *user_shell;
char *remote_ip;
int remote_port;
!
/* Check /etc/nologin. */
f = fopen("/etc/nologin", "r");
if (f)
--- 3085,3097 ----
char *user_shell;
char *remote_ip;
int remote_port;
! #ifdef HAVE_LOGIN_CAP_H
! login_cap_t *lc;
! char *real_shell;
!
! lc = login_getclass(pw);
! auth_checknologin(lc);
! #else /* !HAVE_LOGIN_CAP_H */
/* Check /etc/nologin. */
f = fopen("/etc/nologin", "r");
if (f)
***************
*** 3031,3036 ****
--- 3105,3111 ----
if (pw->pw_uid != UID_ROOT)
exit(254);
}
+ #endif /* HAVE_LOGIN_CAP_H */
if (command != NULL)
{
***************
*** 3043,3049 ****
else
log_msg("executing remote command as user %.200s", pw->pw_name);
}
!
#ifdef HAVE_SETLOGIN
/* Set login name in the kernel. Warning: setsid() must be called before
this. */
--- 3118,3125 ----
else
log_msg("executing remote command as user %.200s", pw->pw_name);
}
!
! #ifndef HAVE_LOGIN_CAP_H
#ifdef HAVE_SETLOGIN
/* Set login name in the kernel. Warning: setsid() must be called before
this. */
***************
*** 3064,3069 ****
--- 3140,3146 ----
if (setpcred((char *)pw->pw_name, NULL))
log_msg("setpcred %.100s: %.100s", strerror(errno));
#endif /* HAVE_USERSEC_H */
+ #endif /* !HAVE_LOGIN_CAP_H */
/* Save some data that will be needed so that we can do certain cleanups
before we switch to user's uid. (We must clear all sensitive data
***************
*** 3134,3139 ****
--- 3211,3276 ----
if (command != NULL || !options.use_login)
#endif /* USELOGIN */
{
+ #ifdef HAVE_LOGIN_CAP_H
+ char *p, *s, **tmpenv;
+
+ /* Initialize the new environment.
+ */
+ envsize = 64;
+ env = xmalloc(envsize * sizeof(char *));
+ env[0] = NULL;
+
+ child_set_env(&env, &envsize, "PATH", DEFAULT_PATH);
+
+ #ifdef MAIL_SPOOL_DIRECTORY
+ sprintf(buf, "%.200s/%.50s", MAIL_SPOOL_DIRECTORY, user_name);
+ child_set_env(&env, &envsize, "MAIL", buf);
+ #else /* MAIL_SPOOL_DIRECTORY */
+ #ifdef MAIL_SPOOL_FILE
+ sprintf(buf, "%.200s/%.50s", user_dir, MAIL_SPOOL_FILE);
+ child_set_env(&env, &envsize, "MAIL", buf);
+ #endif /* MAIL_SPOOL_FILE */
+ #endif /* MAIL_SPOOL_DIRECTORY */
+
+ /* Let it inherit timezone if we have one. */
+ if (getenv("TZ"))
+ child_set_env(&env, &envsize, "TZ", getenv("TZ"));
+
+ /* Save previous environment array
+ */
+ tmpenv = environ;
+ environ = env;
+
+ /* Set the user's login environment
+ */
+ if (setusercontext(lc, pw, user_uid, LOGIN_SETALL) < 0)
+ {
+ perror("setusercontext");
+ exit(1);
+ }
+
+ p = getenv("PATH");
+ s = xmalloc((p != NULL ? strlen(p) + 1 : 0) + sizeof(SSH_BINDIR));
+ *s = '\0';
+ if (p != NULL)
+ {
+ strcat(s, p);
+ strcat(s, ":");
+ }
+ strcat(s, SSH_BINDIR);
+
+ env = environ;
+ environ = tmpenv; /* Restore parent environment */
+ for (envsize = 0; env[envsize] != NULL; ++envsize)
+ ;
+ /* Reallocate this to what is expected */
+ envsize = (envsize < 100) ? 100 : envsize + 16;
+ env = xrealloc(env, envsize * sizeof(char *));
+
+ child_set_env(&env, &envsize, "PATH", s);
+ xfree(s);
+
+ #else /* !HAVE_LOGIN_CAP_H */
/* Set uid, gid, and groups. */
if (getuid() == UID_ROOT || geteuid() == UID_ROOT)
{
***************
*** 3165,3170 ****
--- 3302,3308 ----
if (getuid() != user_uid || geteuid() != user_uid)
fatal("Failed to set uids to %d.", (int)user_uid);
+ #endif /* HAVE_LOGIN_CAP_H */
}
/* Reset signals to their default settings before starting the user
***************
*** 3175,3185 ****
--- 3313,3328 ----
and means /bin/sh. */
shell = (user_shell[0] == '\0') ? DEFAULT_SHELL : user_shell;
+ #ifdef HAVE_LOGIN_CAP_H
+ real_shell = login_getcapstr(lc, "shell", (char*)shell, (char*)shell);
+ login_close(lc);
+ #else /* !HAVE_LOGIN_CAP_H */
/* Initialize the environment. In the first part we allocate space for
all environment variables. */
envsize = 100;
env = xmalloc(envsize * sizeof(char *));
env[0] = NULL;
+ #endif /* HAVE_LOGIN_CAP_H */
#ifdef USELOGIN
if (command != NULL || !options.use_login)
***************
*** 3189,3194 ****
--- 3332,3339 ----
child_set_env(&env, &envsize, "HOME", user_dir);
child_set_env(&env, &envsize, "USER", user_name);
child_set_env(&env, &envsize, "LOGNAME", user_name);
+
+ #ifndef HAVE_LOGIN_CAP_H
child_set_env(&env, &envsize, "PATH", DEFAULT_PATH ":" SSH_BINDIR);
#ifdef MAIL_SPOOL_DIRECTORY
***************
*** 3200,3205 ****
--- 3345,3351 ----
child_set_env(&env, &envsize, "MAIL", buf);
#endif /* MAIL_SPOOL_FILE */
#endif /* MAIL_SPOOL_DIRECTORY */
+ #endif /* !HAVE_LOGIN_CAP_H */
#ifdef HAVE_ETC_DEFAULT_LOGIN
/* Read /etc/default/login; this exists at least on Solaris 2.x. Note
***************
*** 3215,3223 ****
--- 3361,3371 ----
child_set_env(&env, &envsize, "SSH_ORIGINAL_COMMAND",
original_command);
+ #ifndef HAVE_LOGIN_CAP_H
/* Let it inherit timezone if we have one. */
if (getenv("TZ"))
child_set_env(&env, &envsize, "TZ", getenv("TZ"));
+ #endif /* !HAVE_LOGIN_CAP_H */
/* Set custom environment options from RSA authentication. */
while (custom_environment)
***************
*** 3437,3443 ****
--- 3585,3595 ----
/* Execute the shell. */
argv[0] = buf;
argv[1] = NULL;
+ #ifdef HAVE_LOGIN_CAP_H
+ execve(real_shell, argv, env);
+ #else
execve(shell, argv, env);
+ #endif /* HAVE_LOGIN_CAP_H */
/* Executing the shell failed. */
perror(shell);
exit(1);
***************
*** 3458,3464 ****
--- 3610,3620 ----
argv[1] = "-c";
argv[2] = (char *)command;
argv[3] = NULL;
+ #ifdef HAVE_LOGIN_CAP_H
+ execve(real_shell, argv, env);
+ #else
execve(shell, argv, env);
+ #endif /* HAVE_LOGIN_CAP_H */
perror(shell);
exit(1);
}
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