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add support for starting extra processes at login and logout; always

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preserve TERM and TZ


git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@6770 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Johan Danielsson
1999-08-09 13:57:48 +00:00
parent fc943595df
commit b189f88380
1 changed files with 68 additions and 15 deletions
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83
appl/login/login.c
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@@ -83,18 +83,77 @@ copy_env(void)
extend_env(*p);
}
static int
start_login_process(void)
{
char *prog, *argv0;
prog = login_conf_get_string("login_program");
if(prog == NULL)
return 0;
argv0 = strrchr(prog, '/');
if(argv0)
argv0++;
else
argv0 = prog;
return simple_execle(prog, argv0, NULL, env);
}
static int
start_logout_process(void)
{
char *prog, *argv0;
pid_t pid;
if(prog == NULL)
return 0;
prog = login_conf_get_string("logout_program");
if(prog == NULL)
return 0;
argv0 = strrchr(prog, '/');
if(argv0)
argv0++;
else
argv0 = prog;
pid = fork();
if(pid == 0)
return 0;
if(pid == -1)
err(1, "fork");
/* wait for the real login process to exit */
while(1) {
int status;
int ret;
ret = waitpid(pid, &status, 0);
if(ret > 0) {
if(WIFEXITED(status) || WIFSIGNALED(status)) {
execle(prog, argv0, NULL, env);
err(1, "exec %s", prog);
}
} else if(ret < 0)
err(1, "waitpid");
}
}
static void
exec_shell(const char *shell, int fallback)
{
char *sh;
const char *p;
extend_env(NULL);
if(start_login_process() < 0)
warn("login process");
start_logout_process();
p = strrchr(shell, '/');
if(p)
p++;
else
p = shell;
asprintf(&sh, "-%s", p);
extend_env(NULL);
execle(shell, sh, NULL, env);
if(fallback){
warnx("Can't exec %s, trying %s",
@@ -222,14 +281,7 @@ krb5_get_afs_tokens (struct passwd *pwd)
ret = krb5_cc_default(context, &id2);
if (ret == 0) {
#ifdef _AIX
/* XXX this is a fix for a bug in AFS for AIX 4.3, w/o
this hack the kernel crashes on the following
pioctl... */
pw_dir = strdup(pwd->pw_dir);
#else
pw_dir = pwd->pw_dir;
#endif
if (!pag_set) {
k_setpag();
@@ -292,14 +344,7 @@ krb4_get_afs_tokens (struct passwd *pwd)
if (!k_hasafs ())
return;
#ifdef _AIX
/* XXX this is a fix for a bug in AFS for AIX 4.3, w/o
this hack the kernel crashes on the following
pioctl... */
pw_dir = strdup(pwd->pw_dir);
#else
pw_dir = pwd->pw_dir;
#endif
if (!pag_set) {
k_setpag();
@@ -547,6 +592,13 @@ main(int argc, char **argv)
if(p_flag)
copy_env();
else {
/* this set of variables is always preserved by BSD login */
if(getenv("TERM"))
add_env("TERM", getenv("TERM"));
if(getenv("TZ"))
add_env("TZ", getenv("TZ"));
}
if(*argv){
if(strchr(*argv, '=') == NULL && strcmp(*argv, "-") != 0){
@@ -554,6 +606,7 @@ main(int argc, char **argv)
ask = 0;
}
}
/* XXX should we care about environment on the command line? */
for(try = 0; try < max_tries; try++){
struct passwd *pwd;
char password[128];