<commit_before>/*
 * Copyright (c) 1988 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software written by <NAME> and
 * published in UNIX Review, Vol. 6, No. 8.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 */

/* this came out of the ftpd sources; it's been modified to avoid the
 * globbing stuff since we don't need it.  also execvp instead of execv.
 */

#ifndef lint
#if 0
static char sccsid[] = "@(#)popen.c	5.7 (Berkeley) 2/14/89";
#endif
static const char rcsid[] =
  "$FreeBSD$";
#endif /* not lint */

#include "cron.h"
#include <sys/signal.h>
#include <fcntl.h>
#include <paths.h>
#if defined(SYSLOG)
# include <syslog.h>
#endif
#if defined(LOGIN_CAP)
# include <login_cap.h>
#endif


#define MAX_ARGS 100
#define WANT_GLOBBING 0

/*
 * Special version of popen which avoids call to shell.  This insures noone
 * may create a pipe to a hidden program as a side effect of a list or dir
 * command.
 */
static PID_T *pids;
static int fds;

FILE *
cron_popen(program, type, e)
	char *program, *type;
	entry *e;
{
	register char *cp;
	FILE *iop;
	int argc, pdes[2];
	PID_T pid;
	char *usernm;
	char *argv[MAX_ARGS + 1];
# if defined(LOGIN_CAP)
	struct passwd	*pwd;
	login_cap_t *lc;
# endif
#if WANT_GLOBBING
	char **pop, *vv[2];
	int gargc;
	char *gargv[1000];
	extern char **glob(), **copyblk();
#endif

	if ((*type != 'r' && *type != 'w') || type[1])
		return(NULL);

	if (!pids) {
		if ((fds = getdtablesize()) <= 0)
			return(NULL);
		if (!(pids = (PID_T *)malloc((u_int)(fds * sizeof(PID_T)))))
			return(NULL);
		bzero((char *)pids, fds * sizeof(PID_T));
	}
	if (pipe(pdes) < 0)
		return(NULL);

	/* break up string into pieces */
	for (argc = 0, cp = program; argc < MAX_ARGS; cp = NULL)
		if (!(argv[argc++] = strtok(cp, " \t\n")))
			break;
	argv[MAX_ARGS] = NULL;

#if WANT_GLOBBING
	/* glob each piece */
	gargv[0] = argv[0];
	for (gargc = argc = 1; argv[argc]; argc++) {
		if (!(pop = glob(argv[argc]))) {	/* globbing failed */
			vv[0] = argv[argc];
			vv[1] = NULL;
			pop = copyblk(vv);
		}
		argv[argc] = (char *)pop;		/* save to free later */
		while (*pop && gargc < 1000)
			gargv[gargc++] = *pop++;
	}
	gargv[gargc] = NULL;
#endif

	iop = NULL;
	switch(pid = vfork()) {
	case -1:			/* error */
		(void)close(pdes[0]);
		(void)close(pdes[1]);
		goto pfree;
		/* NOTREACHED */
	case 0:				/* child */
		if (e != NULL) {
#ifdef SYSLOG
			closelog();
#endif

			/* get new pgrp, void tty, etc.
			 */
			(void) setsid();
		}
		if (*type == 'r') {
			/* Do not share our parent's stdin */
			(void)close(0);
			(void)open(_PATH_DEVNULL, O_RDWR);
			if (pdes[1] != 1) {
				dup2(pdes[1], 1);
				dup2(pdes[1], 2);	/* stderr, too! */
				(void)close(pdes[1]);
			}
			(void)close(pdes[0]);
		} else {
			if (pdes[0] != 0) {
				dup2(pdes[0], 0);
				(void)close(pdes[0]);
			}
			/* Hack: stdout gets revoked */
			(void)close(1);
			(void)open(_PATH_DEVNULL, O_RDWR);
			(void)close(2);
			(void)open(_PATH_DEVNULL, O_RDWR);
			(void)close(pdes[1]);
		}
# if defined(LOGIN_CAP)
		if (e != NULL) {
			/* Set user's entire context, but skip the environment
			 * as cron provides a separate interface for this
			 */
			usernm = env_get("LOGNAME", e->envp);
			if ((pwd = getpwnam(usernm)) == NULL)
				pwd = getpwuid(e->uid);
			lc = NULL;
			if (pwd != NULL) {
				pwd->pw_gid = e->gid;
				if (e->class != NULL)
					lc = login_getclass(e->class);
			}
			if (pwd &&
			    setusercontext(lc, pwd, e->uid,<commit_msg>Make cron actually build without defining LOGIN_CAP.<commit_after>/*
 * Copyright (c) 1988 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software written by <NAME> and
 * published in UNIX Review, Vol. 6, No. 8.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 */

/* this came out of the ftpd sources; it's been modified to avoid the
 * globbing stuff since we don't need it.  also execvp instead of execv.
 */

#ifndef lint
#if 0
static char sccsid[] = "@(#)popen.c	5.7 (Berkeley) 2/14/89";
#endif
static const char rcsid[] =
  "$FreeBSD$";
#endif /* not lint */

#include "cron.h"
#include <sys/signal.h>
#include <fcntl.h>
#include <paths.h>
#if defined(SYSLOG)
# include <syslog.h>
#endif
#if defined(LOGIN_CAP)
# include <login_cap.h>
#endif


#define MAX_ARGS 100
#define WANT_GLOBBING 0

/*
 * Special version of popen which avoids call to shell.  This insures noone
 * may create a pipe to a hidden program as a side effect of a list or dir
 * command.
 */
static PID_T *pids;
static int fds;

FILE *
cron_popen(program, type, e)
	char *program, *type;
	entry *e;
{
	register char *cp;
	FILE *iop;
	int argc, pdes[2];
	PID_T pid;
	char *usernm;
	char *argv[MAX_ARGS + 1];
# if defined(LOGIN_CAP)
	struct passwd	*pwd;
	login_cap_t *lc;
# endif
#if WANT_GLOBBING
	char **pop, *vv[2];
	int gargc;
	char *gargv[1000];
	extern char **glob(), **copyblk();
#endif

	if ((*type != 'r' && *type != 'w') || type[1])
		return(NULL);

	if (!pids) {
		if ((fds = getdtablesize()) <= 0)
			return(NULL);
		if (!(pids = (PID_T *)malloc((u_int)(fds * sizeof(PID_T)))))
			return(NULL);
		bzero((char *)pids, fds * sizeof(PID_T));
	}
	if (pipe(pdes) < 0)
		return(NULL);

	/* break up string into pieces */
	for (argc = 0, cp = program; argc < MAX_ARGS; cp = NULL)
		if (!(argv[argc++] = strtok(cp, " \t\n")))
			break;
	argv[MAX_ARGS] = NULL;

#if WANT_GLOBBING
	/* glob each piece */
	gargv[0] = argv[0];
	for (gargc = argc = 1; argv[argc]; argc++) {
		if (!(pop = glob(argv[argc]))) {	/* globbing failed */
			vv[0] = argv[argc];
			vv[1] = NULL;
			pop = copyblk(vv);
		}
		argv[argc] = (char *)pop;		/* save to free later */
		while (*pop && gargc < 1000)
			gargv[gargc++] = *pop++;
	}
	gargv[gargc] = NULL;
#endif

	iop = NULL;
	switch(pid = vfork()) {
	case -1:			/* error */
		(void)close(pdes[0]);
		(void)close(pdes[1]);
		goto pfree;
		/* NOTREACHED */
	case 0:				/* child */
		if (e != NULL) {
#ifdef SYSLOG
			closelog();
#endif

			/* get new pgrp, void tty, etc.
			 */
			(void) setsid();
		}
		if (*type == 'r') {
			/* Do not share our parent's stdin */
			(void)close(0);
			(void)open(_PATH_DEVNULL, O_RDWR);
			if (pdes[1] != 1) {
				dup2(pdes[1], 1);
				dup2(pdes[1], 2);	/* stderr, too! */
				(void)close(pdes[1]);
			}
			(void)close(pdes[0]);
		} else {
			if (pdes[0] != 0) {
				dup2(pdes[0], 0);
				(void)close(pdes[0]);
			}
			/* Hack: stdout gets revoked */
			(void)close(1);
			(void)open(_PATH_DEVNULL, O_RDWR);
			(void)close(2);
			(void)open(_PATH_DEVNULL, O_RDWR);
			(void)close(pdes[1]);
		}
		if (e != NULL) {
			/* Set user's entire context, but skip the environment
			 * as cron provides a separate interface for this
			 */
			usernm = env_get("LOGNAME", e->envp);
# if defined(LOGIN_CAP)
			if ((pwd = getpwnam(usernm)) == NULL)
				pwd = getpwuid(e->uid);
			lc = NULL;
			if (pwd != NULL) {
				pwd->pw_gid = e->gid;
				if (e->class != NULL)
					lc = login_getclass(e->class);
			}
			if (pwd &&
			    setusercontext(lc, pwd, e->uid,
{'fraction_non_alphanumeric': 0.15561376354327897, 'fraction_numerical': 0.014763662340754852, 'mean_word_length': 3.3795620437956204, 'pattern_counts': {'":': 0, '<': 23, '<?xml version=': 0, '>': 29, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 2, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
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