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/* Copyright 1988,1990,1993,1994 by Paul Vixie
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* All rights reserved
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*
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* Distribute freely, except: don't remove my name from the source or
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* documentation (don't take credit for my work), mark your changes (don't
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* get me blamed for your possible bugs), don't alter or remove this
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* notice. May be sold if buildable source is provided to buyer. No
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* warrantee of any kind, express or implied, is included with this
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* software; use at your own risk, responsibility for damages (if any) to
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* anyone resulting from the use of this software rests entirely with the
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* user.
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*
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* Send bug reports, bug fixes, enhancements, requests, flames, etc., and
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* I'll try to keep a version up to date. I can be reached as follows:
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* Paul Vixie <paul@vix.com> uunet!decwrl!vixie!paul
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*/
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#if !defined(lint) && !defined(LINT)
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static char rcsid[] = "$Id: do_command.c,v 2.12 1994/01/15 20:43:43 vixie Exp $";
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#endif
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#include "cron.h"
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#include <signal.h>
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#include <grp.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#if defined(sequent)
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# include <sys/universe.h>
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#endif
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#if defined(SYSLOG)
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# include <syslog.h>
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#endif
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#if defined(USE_PAM)
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#include <security/pam_appl.h>
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static pam_handle_t *pamh = NULL;
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static const struct pam_conv conv = {
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NULL
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};
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#define PAM_FAIL_CHECK if (retcode != PAM_SUCCESS) { \
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fprintf(stderr,"\n%s\n",pam_strerror(pamh, retcode)); \
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syslog(LOG_ERR,"%s",pam_strerror(pamh, retcode)); \
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pam_end(pamh, retcode); exit(1); \
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}
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#endif
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#ifdef WITH_SELINUX
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#include <selinux/selinux.h>
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/* #include <selinux/get_context_list.h> */
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#endif
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static void child_process __P((entry *, user *)),
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do_univ __P((user *));
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/* Build up the job environment from the PAM environment plus the
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crontab environment */
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static char ** build_env(char **cronenv)
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{
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char **jobenv = cronenv;
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#if defined(USE_PAM)
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char **pamenv = pam_getenvlist(pamh);
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char *cronvar;
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int count = 0;
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jobenv = env_copy(pamenv);
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/* Now add the cron environment variables. Since env_set()
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overwrites existing variables, this will let cron's
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environment settings override pam's */
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while ((cronvar = cronenv[count++])) {
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if (!(jobenv = env_set(jobenv, cronvar))) {
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syslog(LOG_ERR, "Setting Cron environment variable %s failed", cronvar);
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return NULL;
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}
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}
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#endif
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return jobenv;
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}
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void
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do_command(e, u)
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entry *e;
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user *u;
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{
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Debug(DPROC, ("[%d] do_command(%s, (%s,%d,%d))\n",
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getpid(), e->cmd, u->name, e->uid, e->gid))
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/* fork to become asynchronous -- parent process is done immediately,
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* and continues to run the normal cron code, which means return to
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* tick(). the child and grandchild don't leave this function, alive.
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*
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* vfork() is unsuitable, since we have much to do, and the parent
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* needs to be able to run off and fork other processes.
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*/
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switch (fork()) {
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case -1:
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log_it("CRON",getpid(),"error","can't fork");
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break;
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case 0:
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/* child process */
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acquire_daemonlock(1);
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child_process(e, u);
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Debug(DPROC, ("[%d] child process done, exiting\n", getpid()))
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_exit(OK_EXIT);
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break;
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default:
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/* parent process */
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break;
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}
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Debug(DPROC, ("[%d] main process returning to work\n", getpid()))
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}
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/*
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* CROND
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* - cron (runs child_process);
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* - cron (runs exec sh -c 'tab entry');
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* - cron (writes any %-style stdin to the command);
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* - mail (popen writes any stdout to mailcmd);
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*/
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static void
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child_process(e, u)
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entry *e;
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user *u;
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{
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int stdin_pipe[2];
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FILE *tmpout;
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register char *input_data;
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char *usernm, *mailto;
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int children = 0;
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#if defined(USE_PAM)
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int retcode = 0;
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#endif
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Debug(DPROC, ("[%d] child_process('%s')\n", getpid(), e->cmd))
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/* mark ourselves as different to PS command watchers by upshifting
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* our program name. This has no effect on some kernels.
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*/
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/*local*/{
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register char *pch;
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for (pch = ProgramName; *pch; pch++)
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*pch = MkUpper(*pch);
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}
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/* discover some useful and important environment settings
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*/
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usernm = env_get("LOGNAME", e->envp);
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mailto = env_get("MAILTO", e->envp);
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/* Check for arguments */
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if (mailto) {
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const char *end;
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/* These chars have to match those cron_popen()
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* uses to split the command string */
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mailto += strspn(mailto, " \t\n");
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end = mailto + strcspn(mailto, " \t\n");
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if (*mailto == '-' || *end != '\0') {
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printf("Bad Mailto karma.\n");
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log_it("CRON",getpid(),"error","bad mailto");
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mailto = NULL;
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}
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}
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#ifdef USE_SIGCHLD
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/* our parent is watching for our death by catching SIGCHLD. we
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* do not care to watch for our children's deaths this way -- we
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* use wait() explictly. so we have to disable the signal (which
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* was inherited from the parent).
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*/
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#ifdef DEBIAN
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(void) signal(SIGCHLD, SIG_DFL);
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#else
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(void) signal(SIGCHLD, SIG_IGN);
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#endif
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#else
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/* on system-V systems, we are ignoring SIGCLD. we have to stop
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* ignoring it now or the wait() in cron_pclose() won't work.
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* because of this, we have to wait() for our children here, as well.
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*/
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(void) signal(SIGCLD, SIG_DFL);
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#endif /*BSD*/
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/* create a pipe to talk to our future child
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*/
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pipe(stdin_pipe); /* child's stdin */
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/* child's stdout */
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if ((tmpout = tmpfile()) == NULL) {
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log_it("CRON", getpid(), "error", "create tmpfile");
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exit(ERROR_EXIT);
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}
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/* since we are a forked process, we can diddle the command string
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* we were passed -- nobody else is going to use it again, right?
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*
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* if a % is present in the command, previous characters are the
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* command, and subsequent characters are the additional input to
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* the command. Subsequent %'s will be transformed into newlines,
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* but that happens later.
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*
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* If there are escaped %'s, remove the escape character.
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*/
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/*local*/{
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register int escaped = FALSE;
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register int ch;
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register char *p;
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for (input_data = p = e->cmd; (ch = *input_data);
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input_data++, p++) {
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if (p != input_data)
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*p = ch;
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if (escaped) {
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if (ch == '%' || ch == '\\')
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*--p = ch;
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escaped = FALSE;
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continue;
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}
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if (ch == '\\') {
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escaped = TRUE;
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continue;
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}
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if (ch == '%') {
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*input_data++ = '\0';
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break;
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}
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}
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*p = '\0';
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}
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#if defined(USE_PAM)
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retcode = pam_start("cron", usernm, &conv, &pamh);
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PAM_FAIL_CHECK;
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retcode = pam_set_item(pamh, PAM_TTY, "cron");
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PAM_FAIL_CHECK;
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retcode = pam_acct_mgmt(pamh, PAM_SILENT);
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PAM_FAIL_CHECK;
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retcode = pam_setcred(pamh, PAM_ESTABLISH_CRED | PAM_SILENT);
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PAM_FAIL_CHECK;
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retcode = pam_open_session(pamh, PAM_SILENT);
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PAM_FAIL_CHECK;
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#endif
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/* fork again, this time so we can exec the user's command.
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*/
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switch (vfork()) {
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case -1:
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log_it("CRON",getpid(),"error","can't vfork");
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exit(ERROR_EXIT);
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/*NOTREACHED*/
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case 0:
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Debug(DPROC, ("[%d] grandchild process Vfork()'ed\n",
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getpid()))
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/* write a log message. we've waited this long to do it
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* because it was not until now that we knew the PID that
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* the actual user command shell was going to get and the
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* PID is part of the log message.
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*/
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if (log_level >= 1) {
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char *x = mkprints((u_char *)e->cmd, strlen(e->cmd));
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log_it(usernm, getpid(), "CMD", x);
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free(x);
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}
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/* that's the last thing we'll log. close the log files.
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*/
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| 275 |
log_close();
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| 277 |
/* get new pgrp, void tty, etc.
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*/
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| 279 |
(void) setsid();
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| 280 |
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| 281 |
/* close the pipe ends that we won't use. this doesn't affect
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* the parent, who has to read and write them; it keeps the
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* kernel from recording us as a potential client TWICE --
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* which would keep it from sending SIGPIPE in otherwise
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| 285 |
* appropriate circumstances.
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| 286 |
*/
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| 287 |
close(stdin_pipe[WRITE_PIPE]);
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| 288 |
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| 289 |
/* grandchild process. make std{in,out} be the ends of
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| 290 |
* pipes opened by our daddy; make stderr go to stdout.
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*/
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| 292 |
/* Closes are unnecessary -- let dup2() do it */
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| 293 |
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| 294 |
/* close(STDIN) */; dup2(stdin_pipe[READ_PIPE], STDIN);
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dup2(fileno(tmpout), STDOUT);
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/* close(STDERR)*/; dup2(STDOUT, STDERR);
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|
| 298 |
|
| 299 |
/* close the pipe we just dup'ed. The resources will remain.
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*/
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| 301 |
close(stdin_pipe[READ_PIPE]);
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| 302 |
// Don't do this: fclose(tmpout);
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| 303 |
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| 304 |
/* set our login universe. Do this in the grandchild
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| 305 |
* so that the child can invoke /usr/lib/sendmail
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| 306 |
* without surprises.
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*/
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do_univ(u);
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| 309 |
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| 310 |
/* set our directory, uid and gid. Set gid first, since once
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| 311 |
* we set uid, we've lost root privledges.
|
| 312 |
*/
|
| 313 |
if (setgid(e->gid) !=0) {
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| 314 |
char msg[256];
|
| 315 |
snprintf(msg, 256, "do_command:setgid(%lu) failed: %s",
|
| 316 |
(unsigned long) e->gid, strerror(errno));
|
| 317 |
log_it("CRON",getpid(),"error",msg);
|
| 318 |
exit(ERROR_EXIT);
|
| 319 |
}
|
| 320 |
# if defined(BSD) || defined(POSIX)
|
| 321 |
if (initgroups(env_get("LOGNAME", e->envp), e->gid) !=0) {
|
| 322 |
char msg[256];
|
| 323 |
snprintf(msg, 256, "do_command:initgroups(%lu) failed: %s",
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| 324 |
(unsigned long) e->gid, strerror(errno));
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| 325 |
log_it("CRON",getpid(),"error",msg);
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| 326 |
exit(ERROR_EXIT);
|
| 327 |
}
|
| 328 |
# endif
|
| 329 |
if (setuid(e->uid) !=0) { /* we aren't root after this... */
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| 330 |
char msg[256];
|
| 331 |
snprintf(msg, 256, "do_command:setuid(%lu) failed: %s",
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| 332 |
(unsigned long) e->uid, strerror(errno));
|
| 333 |
log_it("CRON",getpid(),"error",msg);
|
| 334 |
exit(ERROR_EXIT);
|
| 335 |
}
|
| 336 |
chdir(env_get("HOME", e->envp));
|
| 337 |
|
| 338 |
/* exec the command.
|
| 339 |
*/
|
| 340 |
{
|
| 341 |
char **jobenv = build_env(e->envp);
|
| 342 |
char *shell = env_get("SHELL", jobenv);
|
| 343 |
# if DEBUGGING
|
| 344 |
if (DebugFlags & DTEST) {
|
| 345 |
fprintf(stderr,
|
| 346 |
"debug DTEST is on, not exec'ing command.\n");
|
| 347 |
fprintf(stderr,
|
| 348 |
"\tcmd='%s' shell='%s'\n", e->cmd, shell);
|
| 349 |
_exit(OK_EXIT);
|
| 350 |
}
|
| 351 |
# endif /*DEBUGGING*/
|
| 352 |
#if 0
|
| 353 |
{
|
| 354 |
struct sigaction oact;
|
| 355 |
sigaction(SIGCHLD, NULL, &oact);
|
| 356 |
}
|
| 357 |
fprintf(stdout,"error");
|
| 358 |
#endif
|
| 359 |
#ifdef WITH_SELINUX
|
| 360 |
if (is_selinux_enabled() > 0) {
|
| 361 |
if (u->scontext != 0L) {
|
| 362 |
if (setexeccon(u->scontext) < 0) {
|
| 363 |
if (security_getenforce() > 0) {
|
| 364 |
fprintf(stderr, "Could not set exec context to %s for user %s\n", u->scontext,u->name);
|
| 365 |
_exit(ERROR_EXIT);
|
| 366 |
}
|
| 367 |
}
|
| 368 |
}
|
| 369 |
else if(security_getenforce() > 0)
|
| 370 |
{
|
| 371 |
fprintf(stderr, "Error, must have a security context for the cron job when in enforcing mode.\nUser %s.\n", u->name);
|
| 372 |
_exit(ERROR_EXIT);
|
| 373 |
}
|
| 374 |
}
|
| 375 |
#endif
|
| 376 |
execle(shell, shell, "-c", e->cmd, (char *)0, jobenv);
|
| 377 |
fprintf(stderr, "%s: execle: %s\n", shell, strerror(errno));
|
| 378 |
_exit(ERROR_EXIT);
|
| 379 |
}
|
| 380 |
break;
|
| 381 |
default:
|
| 382 |
/* parent process */
|
| 383 |
break;
|
| 384 |
}
|
| 385 |
|
| 386 |
children++;
|
| 387 |
|
| 388 |
/* middle process, child of original cron, parent of process running
|
| 389 |
* the user's command.
|
| 390 |
*/
|
| 391 |
|
| 392 |
Debug(DPROC, ("[%d] child continues, closing pipes\n", getpid()))
|
| 393 |
|
| 394 |
/* close the end of the pipe that will only be referenced in the
|
| 395 |
* grandchild process...
|
| 396 |
*/
|
| 397 |
close(stdin_pipe[READ_PIPE]);
|
| 398 |
|
| 399 |
/*
|
| 400 |
* write, to the pipe connected to child's stdin, any input specified
|
| 401 |
* after a % in the crontab entry. while we copy, convert any
|
| 402 |
* additional %'s to newlines. when done, if some characters were
|
| 403 |
* written and the last one wasn't a newline, write a newline.
|
| 404 |
*
|
| 405 |
* Note that if the input data won't fit into one pipe buffer (2K
|
| 406 |
* or 4K on most BSD systems), and the child doesn't read its stdin,
|
| 407 |
* we would block here. thus we must fork again.
|
| 408 |
*/
|
| 409 |
|
| 410 |
if (*input_data && fork() == 0) {
|
| 411 |
register FILE *out = fdopen(stdin_pipe[WRITE_PIPE], "w");
|
| 412 |
register int need_newline = FALSE;
|
| 413 |
register int escaped = FALSE;
|
| 414 |
register int ch;
|
| 415 |
|
| 416 |
Debug(DPROC, ("[%d] child2 sending data to grandchild\n", getpid()))
|
| 417 |
|
| 418 |
/* translation:
|
| 419 |
* \% -> %
|
| 420 |
* % -> \n
|
| 421 |
* \x -> \x for all x != %
|
| 422 |
*/
|
| 423 |
while ((ch = *input_data++) != '\0') {
|
| 424 |
if (escaped) {
|
| 425 |
if (ch != '%')
|
| 426 |
putc('\\', out);
|
| 427 |
} else {
|
| 428 |
if (ch == '%')
|
| 429 |
ch = '\n';
|
| 430 |
}
|
| 431 |
|
| 432 |
if (!(escaped = (ch == '\\'))) {
|
| 433 |
putc(ch, out);
|
| 434 |
need_newline = (ch != '\n');
|
| 435 |
}
|
| 436 |
}
|
| 437 |
if (escaped)
|
| 438 |
putc('\\', out);
|
| 439 |
if (need_newline)
|
| 440 |
putc('\n', out);
|
| 441 |
|
| 442 |
/* close the pipe, causing an EOF condition. fclose causes
|
| 443 |
* stdin_pipe[WRITE_PIPE] to be closed, too.
|
| 444 |
*/
|
| 445 |
fclose(out);
|
| 446 |
|
| 447 |
Debug(DPROC, ("[%d] child2 done sending to grandchild\n", getpid()))
|
| 448 |
exit(0);
|
| 449 |
}
|
| 450 |
|
| 451 |
/* close the pipe to the grandkiddie's stdin, since its wicked uncle
|
| 452 |
* ernie back there has it open and will close it when he's done.
|
| 453 |
*/
|
| 454 |
close(stdin_pipe[WRITE_PIPE]);
|
| 455 |
|
| 456 |
children++;
|
| 457 |
|
| 458 |
/*
|
| 459 |
* read output from the grandchild. it's stderr has been redirected to
|
| 460 |
* it's stdout, which has been redirected to our pipe. if there is any
|
| 461 |
* output, we'll be mailing it to the user whose crontab this is...
|
| 462 |
* when the grandchild exits, we'll get EOF.
|
| 463 |
*/
|
| 464 |
|
| 465 |
/* wait for children to die.
|
| 466 |
*/
|
| 467 |
int status = 0;
|
| 468 |
for (; children > 0; children--)
|
| 469 |
{
|
| 470 |
char msg[256];
|
| 471 |
WAIT_T waiter;
|
| 472 |
PID_T pid;
|
| 473 |
|
| 474 |
Debug(DPROC, ("[%d] waiting for grandchild #%d to finish\n",
|
| 475 |
getpid(), children))
|
| 476 |
pid = wait(&waiter);
|
| 477 |
if (pid < OK) {
|
| 478 |
Debug(DPROC, ("[%d] no more grandchildren\n", getpid()))
|
| 479 |
break;
|
| 480 |
}
|
| 481 |
Debug(DPROC, ("[%d] grandchild #%d finished, status=%04x\n",
|
| 482 |
getpid(), pid, WEXITSTATUS(waiter)))
|
| 483 |
|
| 484 |
if (WIFEXITED(waiter) && WEXITSTATUS(waiter)) {
|
| 485 |
status = waiter;
|
| 486 |
snprintf(msg, 256, "grandchild #%d failed with exit "
|
| 487 |
"status %d", pid, WEXITSTATUS(waiter));
|
| 488 |
log_it("CRON", getpid(), "error", msg);
|
| 489 |
} else if (WIFSIGNALED(waiter)) {
|
| 490 |
status = waiter;
|
| 491 |
snprintf(msg, 256, "grandchild #%d terminated by signal"
|
| 492 |
" %d%s", pid, WTERMSIG(waiter),
|
| 493 |
WCOREDUMP(waiter) ? ", dumped core" : "");
|
| 494 |
log_it("CRON", getpid(), "error", msg);
|
| 495 |
}
|
| 496 |
}
|
| 497 |
|
| 498 |
// Finally, send any output of the command to the mailer; also, alert
|
| 499 |
// the user if their job failed. Avoid popening the mailcmd until now
|
| 500 |
// since sendmail may time out, and to write info about the exit
|
| 501 |
// status.
|
| 502 |
|
| 503 |
long pos;
|
| 504 |
struct stat mcsb;
|
| 505 |
int statret;
|
| 506 |
|
| 507 |
fseek(tmpout, 0, SEEK_END);
|
| 508 |
pos = ftell(tmpout);
|
| 509 |
fseek(tmpout, 0, SEEK_SET);
|
| 510 |
|
| 511 |
Debug(DPROC|DEXT, ("[%d] got %ld bytes data from grandchild tmpfile\n",
|
| 512 |
getpid(), (long) pos))
|
| 513 |
if (pos == 0)
|
| 514 |
goto mail_finished;
|
| 515 |
|
| 516 |
// get name of recipient.
|
| 517 |
if (mailto == NULL)
|
| 518 |
mailto = usernm;
|
| 519 |
else if (!*mailto)
|
| 520 |
goto mail_finished;
|
| 521 |
|
| 522 |
/* Don't send mail if MAILCMD is not available */
|
| 523 |
if ((statret = stat(MAILCMD, &mcsb)) != 0) {
|
| 524 |
Debug(DPROC|DEXT, ("%s not found, not sending mail\n", MAILCMD))
|
| 525 |
if (pos > 0) {
|
| 526 |
log_it("CRON", getpid(), "info", "No MTA installed, discarding output");
|
| 527 |
}
|
| 528 |
goto mail_finished;
|
| 529 |
} else {
|
| 530 |
Debug(DPROC|DEXT, ("%s found, will send mail\n", MAILCMD))
|
| 531 |
}
|
| 532 |
|
| 533 |
register FILE *mail = NULL;
|
| 534 |
register int bytes = 1;
|
| 535 |
|
| 536 |
register char **env;
|
| 537 |
char **jobenv = build_env(e->envp);
|
| 538 |
auto char mailcmd[MAX_COMMAND];
|
| 539 |
auto char hostname[MAXHOSTNAMELEN];
|
| 540 |
char *content_type = env_get("CONTENT_TYPE",jobenv),
|
| 541 |
*content_transfer_encoding = env_get("CONTENT_TRANSFER_ENCODING",jobenv);
|
| 542 |
|
| 543 |
(void) gethostname(hostname, MAXHOSTNAMELEN);
|
| 544 |
(void) snprintf(mailcmd, sizeof(mailcmd),
|
| 545 |
MAILARGS, MAILCMD, mailto);
|
| 546 |
if (!(mail = cron_popen(mailcmd, "w", e))) {
|
| 547 |
perror(MAILCMD);
|
| 548 |
(void) _exit(ERROR_EXIT);
|
| 549 |
}
|
| 550 |
fprintf(mail, "From: root (Cron Daemon)\n");
|
| 551 |
fprintf(mail, "To: %s\n", mailto);
|
| 552 |
fprintf(mail, "Subject: Cron <%s@%s> %s%s\n",
|
| 553 |
usernm, first_word(hostname, "."),
|
| 554 |
e->cmd, status?" (failed)":"");
|
| 555 |
# if defined(MAIL_DATE)
|
| 556 |
fprintf(mail, "Date: %s\n",
|
| 557 |
arpadate(&StartTime));
|
| 558 |
# endif /* MAIL_DATE */
|
| 559 |
if ( content_type == 0L ) {
|
| 560 |
fprintf(mail, "Content-Type: text/plain; charset=%s\n",
|
| 561 |
cron_default_mail_charset
|
| 562 |
);
|
| 563 |
} else {
|
| 564 |
/* user specified Content-Type header.
|
| 565 |
* disallow new-lines for security reasons
|
| 566 |
* (else users could specify arbitrary mail headers!)
|
| 567 |
*/
|
| 568 |
char *nl=content_type;
|
| 569 |
size_t ctlen = strlen(content_type);
|
| 570 |
|
| 571 |
while( (*nl != '\0')
|
| 572 |
&& ((nl=strchr(nl,'\n')) != 0L)
|
| 573 |
&& (nl < (content_type+ctlen))
|
| 574 |
) *nl = ' ';
|
| 575 |
fprintf(mail,"Content-Type: %s\n", content_type);
|
| 576 |
}
|
| 577 |
if ( content_transfer_encoding != 0L ) {
|
| 578 |
char *nl=content_transfer_encoding;
|
| 579 |
size_t ctlen = strlen(content_transfer_encoding);
|
| 580 |
while( (*nl != '\0')
|
| 581 |
&& ((nl=strchr(nl,'\n')) != 0L)
|
| 582 |
&& (nl < (content_transfer_encoding+ctlen))
|
| 583 |
) *nl = ' ';
|
| 584 |
|
| 585 |
fprintf(mail,"Content-Transfer-Encoding: %s\n", content_transfer_encoding);
|
| 586 |
}
|
| 587 |
|
| 588 |
for (env = e->envp; *env; env++)
|
| 589 |
fprintf(mail, "X-Cron-Env: <%s>\n",
|
| 590 |
*env);
|
| 591 |
fputc('\n', mail);
|
| 592 |
|
| 593 |
// Append the actual output of the child to the mail
|
| 594 |
|
| 595 |
char buf[4096];
|
| 596 |
int ret, remain;
|
| 597 |
|
| 598 |
while(1) {
|
| 599 |
if ((ret = fread(buf, 1, sizeof(buf), tmpout)) == 0)
|
| 600 |
break;
|
| 601 |
for (remain = ret; remain != 0; ) {
|
| 602 |
ret = fwrite(buf, 1, remain, mail);
|
| 603 |
if (ret > 0) {
|
| 604 |
remain -= ret;
|
| 605 |
continue;
|
| 606 |
}
|
| 607 |
// XXX error
|
| 608 |
break;
|
| 609 |
}
|
| 610 |
}
|
| 611 |
|
| 612 |
Debug(DPROC, ("[%d] closing pipe to mail\n", getpid()))
|
| 613 |
status = cron_pclose(mail);
|
| 614 |
|
| 615 |
/* if there was output and we could not mail it,
|
| 616 |
* log the facts so the poor user can figure out
|
| 617 |
* what's going on.
|
| 618 |
*/
|
| 619 |
if (status) {
|
| 620 |
char buf[MAX_TEMPSTR];
|
| 621 |
snprintf(buf, MAX_TEMPSTR,
|
| 622 |
"mailed %d byte%s of output; "
|
| 623 |
"but got status 0x%04x, "
|
| 624 |
"\n",
|
| 625 |
bytes, (bytes==1)?"":"s", status);
|
| 626 |
log_it(usernm, getpid(), "MAIL", buf);
|
| 627 |
}
|
| 628 |
|
| 629 |
if (ferror(tmpout)) {
|
| 630 |
log_it(usernm, getpid(), "MAIL", "stream error reading output");
|
| 631 |
}
|
| 632 |
|
| 633 |
mail_finished:
|
| 634 |
fclose(tmpout);
|
| 635 |
|
| 636 |
if (log_level >= 2) {
|
| 637 |
char *x = mkprints((u_char *)e->cmd, strlen(e->cmd));
|
| 638 |
log_it(usernm, getpid(), "END", x);
|
| 639 |
free(x);
|
| 640 |
}
|
| 641 |
|
| 642 |
#if defined(USE_PAM)
|
| 643 |
pam_setcred(pamh, PAM_DELETE_CRED | PAM_SILENT);
|
| 644 |
retcode = pam_close_session(pamh, PAM_SILENT);
|
| 645 |
pam_end(pamh, retcode);
|
| 646 |
#endif
|
| 647 |
}
|
| 648 |
|
| 649 |
|
| 650 |
static void
|
| 651 |
do_univ(u)
|
| 652 |
user *u;
|
| 653 |
{
|
| 654 |
#if defined(sequent)
|
| 655 |
/* Dynix (Sequent) hack to put the user associated with
|
| 656 |
* the passed user structure into the ATT universe if
|
| 657 |
* necessary. We have to dig the gecos info out of
|
| 658 |
* the user's password entry to see if the magic
|
| 659 |
* "universe(att)" string is present.
|
| 660 |
*/
|
| 661 |
|
| 662 |
struct passwd *p;
|
| 663 |
char *s;
|
| 664 |
int i;
|
| 665 |
|
| 666 |
p = getpwuid(u->uid);
|
| 667 |
(void) endpwent();
|
| 668 |
|
| 669 |
if (p == NULL)
|
| 670 |
return;
|
| 671 |
|
| 672 |
s = p->pw_gecos;
|
| 673 |
|
| 674 |
for (i = 0; i < 4; i++)
|
| 675 |
{
|
| 676 |
if ((s = strchr(s, ',')) == NULL)
|
| 677 |
return;
|
| 678 |
s++;
|
| 679 |
}
|
| 680 |
if (strcmp(s, "universe(att)"))
|
| 681 |
return;
|
| 682 |
|
| 683 |
(void) universe(U_ATT);
|
| 684 |
#endif
|
| 685 |
}
|
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