-/*
- * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
+/*
+ * at.c : Put file into atrun queue
+ * Copyright (C) 1993, 1994 Thomas Koenig
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-/*
- * at.c : Put file into atrun queue
- * Copyright (C) 1993 Thomas Koenig
- *
- * Atrun & Atq modifications
- * Copyright (C) 1993 David Parsons
- * All rights reserved.
+ * Atrun & Atq modifications
+ * Copyright (C) 1993 David Parsons
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/usr.bin/at/at.c,v 1.29 2002/07/22 11:32:16 robert Exp $");
+
#define _USE_BSD 1
/* System Headers */
-#include <sys/types.h>
+
+#include <sys/param.h>
#include <sys/stat.h>
+#include <sys/time.h>
#include <sys/wait.h>
#include <ctype.h>
#include <dirent.h>
+#include <err.h>
#include <errno.h>
#include <fcntl.h>
+#ifndef __FreeBSD__
+#include <getopt.h>
+#endif
+#include <glob.h>
+#ifdef __FreeBSD__
+#include <locale.h>
+#endif
#include <pwd.h>
#include <signal.h>
#include <stddef.h>
#include <time.h>
#include <unistd.h>
+#ifdef __APPLE__
+#include <get_compat.h>
+#else /* !__APPLE */
+#define COMPAT_MODE(a,b) (1)
+#endif /* __APPLE__ */
+
/* Local headers */
+
#include "at.h"
#include "panic.h"
#include "parsetime.h"
#include "pathnames.h"
+#include "perm.h"
+
#define MAIN
#include "privs.h"
-#include "perm.h"
/* Macros */
-#define ALARMC 10 /* Number of seconds to wait for timeout */
+
+#ifndef ATJOB_DIR
+#define ATJOB_DIR _PATH_ATJOBS
+#endif
+
+#ifndef LFILE
+#define LFILE ATJOB_DIR ".lockfile"
+#endif
+
+#ifndef ATJOB_MX
+#define ATJOB_MX 255
+#endif
+
+#define ALARMC 10 /* Number of seconds to wait for timeout */
#define SIZE 255
#define TIMESIZE 50
+enum { ATQ, ATRM, AT, BATCH, CAT }; /* what program we want to run */
+
/* File scope variables */
-static char rcsid[] = "$Id: at.c,v 1.2 2003/10/15 22:48:12 lindak Exp $";
-char *no_export[] =
+
+const char *no_export[] =
{
- "TERM", "TERMCAP", "DISPLAY", "_"
-};
-static send_mail = 0;
+ "TERM", "TERMCAP", "DISPLAY", "_"
+} ;
+static int send_mail = 0;
/* External variables */
+
extern char **environ;
int fcreated;
-char *namep;
-char atfile[FILENAME_MAX];
+char atfile[] = ATJOB_DIR "12345678901234";
-char *atinput = (char *) 0; /* where to get input from */
+char *atinput = (char*)0; /* where to get input from */
char atqueue = 0; /* which queue to examine for jobs (atq) */
char atverify = 0; /* verify time instead of queuing job */
+char *namep;
+int posixly_correct; /* Behave as per POSIX */
+/* http://www.opengroup.org/onlinepubs/009695399/utilities/at.html */
/* Function declarations */
-static void sigc __P((int signo));
-static void alarmc __P((int signo));
-static char *cwdname __P((void));
-static void writefile __P((time_t runtimer, char queue));
-static void list_jobs __P((void));
+
+static void sigc(int signo);
+static void alarmc(int signo);
+static char *cwdname(void);
+static void writefile(time_t runtimer, char queue);
+static void list_jobs(long *, int);
+static long nextjob(void);
+static time_t ttime(const char *arg);
+static int in_job_list(long, long *, int);
+static long *get_job_list(int, char *[], int *);
/* Signal catching functions */
-static void
-sigc(signo)
- int signo;
+static void sigc(int signo __unused)
{
-/* If the user presses ^C, remove the spool file and exit
+/* If the user presses ^C, remove the spool file and exit
*/
- if (fcreated) {
- PRIV_START
- unlink(atfile);
- PRIV_END
- }
+ if (fcreated)
+ {
+ PRIV_START
+ unlink(atfile);
+ PRIV_END
+ }
- exit(EXIT_FAILURE);
+ _exit(EXIT_FAILURE);
}
-static void
-alarmc(signo)
- int signo;
+static void alarmc(int signo __unused)
{
-/* Time out after some seconds
- */
- panic("File locking timed out");
+ char buf[1024];
+
+ /* Time out after some seconds. */
+ strlcpy(buf, namep, sizeof(buf));
+ strlcat(buf, ": file locking timed out\n", sizeof(buf));
+ write(STDERR_FILENO, buf, strlen(buf));
+ sigc(0);
}
/* Local functions */
-static char *
-cwdname()
+static char *cwdname(void)
{
/* Read in the current directory; the name will be overwritten on
* subsequent calls.
*/
- static char *ptr = NULL;
- static size_t size = SIZE;
-
- if (ptr == NULL)
- ptr = (char *) malloc(size);
-
- while (1) {
- if (ptr == NULL)
- panic("Out of memory");
+ static char *ptr = NULL;
+ static size_t size = SIZE;
- if (getcwd(ptr, size - 1) != NULL)
- return ptr;
+ if (ptr == NULL)
+ if ((ptr = malloc(size)) == NULL)
+ errx(EXIT_FAILURE, "virtual memory exhausted");
- if (errno != ERANGE)
- perr("Cannot get directory");
+ while (1)
+ {
+ if (ptr == NULL)
+ panic("out of memory");
+
+ if (getcwd(ptr, size-1) != NULL)
+ return ptr;
+
+ if (errno != ERANGE)
+ perr("cannot get directory");
+
+ free (ptr);
+ size += SIZE;
+ if ((ptr = malloc(size)) == NULL)
+ errx(EXIT_FAILURE, "virtual memory exhausted");
+ }
+}
- free(ptr);
- size += SIZE;
- ptr = (char *) malloc(size);
+static long
+nextjob()
+{
+ long jobno;
+ FILE *fid;
+
+ if ((fid = fopen(ATJOB_DIR ".SEQ", "r+")) != (FILE*)0) {
+ if (fscanf(fid, "%5lx", &jobno) == 1) {
+ rewind(fid);
+ jobno = (1+jobno) % 0xfffff; /* 2^20 jobs enough? */
+ fprintf(fid, "%05lx\n", jobno);
}
+ else
+ jobno = EOF;
+ fclose(fid);
+ return jobno;
+ }
+ else if ((fid = fopen(ATJOB_DIR ".SEQ", "w")) != (FILE*)0) {
+ fprintf(fid, "%05lx\n", jobno = 1);
+ fclose(fid);
+ return 1;
+ }
+ return EOF;
}
static void
-writefile(runtimer, queue)
- time_t runtimer;
- char queue;
+writefile(time_t runtimer, char queue)
{
- /*
- * This does most of the work if at or batch are invoked for
- * writing a job.
- */
- int i;
- char *ap, *ppos, *mailname;
- struct passwd *pass_entry;
- struct stat statbuf;
- int fdes, lockdes, fd2;
- FILE *fp, *fpin;
- struct sigaction act;
- char **atenv;
- int ch;
- mode_t cmask;
- struct flock lock;
-
- /*
- * Install the signal handler for SIGINT; terminate after removing the
- * spool file if necessary
- */
- act.sa_handler = sigc;
- sigemptyset(&(act.sa_mask));
- act.sa_flags = 0;
+/* This does most of the work if at or batch are invoked for writing a job.
+ */
+ long jobno;
+ char *ap, *ppos, *mailname;
+ struct passwd *pass_entry;
+ struct stat statbuf;
+ int fdes, lockdes, fd2;
+ FILE *fp, *fpin;
+ struct sigaction act;
+ char **atenv;
+ int ch;
+ mode_t cmask;
+ struct flock lock;
+
+#ifdef __FreeBSD__
+ (void) setlocale(LC_TIME, "");
+#endif
+
+/* Install the signal handler for SIGINT; terminate after removing the
+ * spool file if necessary
+ */
+ act.sa_handler = sigc;
+ sigemptyset(&(act.sa_mask));
+ act.sa_flags = 0;
+
+ sigaction(SIGINT, &act, NULL);
+
+ ppos = atfile + strlen(ATJOB_DIR);
+
+ /* Loop over all possible file names for running something at this
+ * particular time, see if a file is there; the first empty slot at any
+ * particular time is used. Lock the file LFILE first to make sure
+ * we're alone when doing this.
+ */
+
+ PRIV_START
+
+ if ((lockdes = open(LFILE, O_WRONLY | O_CREAT, S_IWUSR | S_IRUSR)) < 0)
+ perr("cannot open lockfile " LFILE);
+
+ lock.l_type = F_WRLCK; lock.l_whence = SEEK_SET; lock.l_start = 0;
+ lock.l_len = 0;
+
+ act.sa_handler = alarmc;
+ sigemptyset(&(act.sa_mask));
+ act.sa_flags = 0;
+
+ /* Set an alarm so a timeout occurs after ALARMC seconds, in case
+ * something is seriously broken.
+ */
+ sigaction(SIGALRM, &act, NULL);
+ alarm(ALARMC);
+ fcntl(lockdes, F_SETLKW, &lock);
+ alarm(0);
+
+ if ((jobno = nextjob()) == EOF)
+ perr("cannot generate job number");
+
+ sprintf(ppos, "%c%5lx%8lx", queue,
+ jobno, (unsigned long) (runtimer/60));
+
+ for(ap=ppos; *ap != '\0'; ap ++)
+ if (*ap == ' ')
+ *ap = '0';
+
+ if (stat(atfile, &statbuf) != 0)
+ if (errno != ENOENT)
+ perr("cannot access " ATJOB_DIR);
+
+ /* Create the file. The x bit is only going to be set after it has
+ * been completely written out, to make sure it is not executed in the
+ * meantime. To make sure they do not get deleted, turn off their r
+ * bit. Yes, this is a kluge.
+ */
+ cmask = umask(S_IRUSR | S_IWUSR | S_IXUSR);
+ if ((fdes = creat(atfile, O_WRONLY)) == -1)
+ perr("cannot create atjob file");
+
+ if ((fd2 = dup(fdes)) <0)
+ perr("error in dup() of job file");
+
+ if(fchown(fd2, real_uid, real_gid) != 0)
+ perr("cannot give away file");
+
+ PRIV_END
+
+ /* We no longer need suid root; now we just need to be able to write
+ * to the directory, if necessary.
+ */
+
+ REDUCE_PRIV(DAEMON_UID, DAEMON_GID)
+
+ /* We've successfully created the file; let's set the flag so it
+ * gets removed in case of an interrupt or error.
+ */
+ fcreated = 1;
+
+ /* Now we can release the lock, so other people can access it
+ */
+ lock.l_type = F_UNLCK; lock.l_whence = SEEK_SET; lock.l_start = 0;
+ lock.l_len = 0;
+ fcntl(lockdes, F_SETLKW, &lock);
+ close(lockdes);
+
+ if((fp = fdopen(fdes, "w")) == NULL)
+ panic("cannot reopen atjob file");
+
+ /* Get the userid to mail to, first by trying getlogin(),
+ * then from LOGNAME, finally from getpwuid().
+ */
+ mailname = getlogin();
+ if (mailname == NULL)
+ mailname = getenv("LOGNAME");
+
+ if ((mailname == NULL) || (mailname[0] == '\0')
+ || (strlen(mailname) >= MAXLOGNAME) || (getpwnam(mailname)==NULL))
+ {
+ pass_entry = getpwuid(real_uid);
+ if (pass_entry != NULL)
+ mailname = pass_entry->pw_name;
+ }
+
+ if (atinput != (char *) NULL)
+ {
+ fpin = freopen(atinput, "r", stdin);
+ if (fpin == NULL)
+ perr("cannot open input file");
+ }
+ fprintf(fp, "#!/bin/sh\n# atrun uid=%ld gid=%ld\n# mail %.*s %d\n",
+ (long) real_uid, (long) real_gid, MAXLOGNAME - 1, mailname,
+ send_mail);
+
+ /* Write out the umask at the time of invocation
+ */
+ fprintf(fp, "umask %lo\n", (unsigned long) cmask);
+
+ /* Write out the environment. Anything that may look like a
+ * special character to the shell is quoted, except for \n, which is
+ * done with a pair of "'s. Don't export the no_export list (such
+ * as TERM or DISPLAY) because we don't want these.
+ */
+ for (atenv= environ; *atenv != NULL; atenv++)
+ {
+ int export = 1;
+ char *eqp;
+
+ eqp = strchr(*atenv, '=');
+ if (ap == NULL)
+ eqp = *atenv;
+ else
+ {
+ size_t i;
+ for (i=0; i<sizeof(no_export)/sizeof(no_export[0]); i++)
+ {
+ export = export
+ && (strncmp(*atenv, no_export[i],
+ (size_t) (eqp-*atenv)) != 0);
+ }
+ eqp++;
+ }
- sigaction(SIGINT, &act, NULL);
+ if (export)
+ {
+ fwrite(*atenv, sizeof(char), eqp-*atenv, fp);
+ for(ap = eqp;*ap != '\0'; ap++)
+ {
+ if (*ap == '\n')
+ fprintf(fp, "\"\n\"");
+ else
+ {
+ if (!isalnum(*ap)) {
+ switch (*ap) {
+ case '%': case '/': case '{': case '[':
+ case ']': case '=': case '}': case '@':
+ case '+': case '#': case ',': case '.':
+ case ':': case '-': case '_':
+ break;
+ default:
+ fputc('\\', fp);
+ break;
+ }
+ }
+ fputc(*ap, fp);
+ }
+ }
+ fputs("; export ", fp);
+ fwrite(*atenv, sizeof(char), eqp-*atenv -1, fp);
+ fputc('\n', fp);
+
+ }
+ }
+ /* Cd to the directory at the time and write out all the
+ * commands the user supplies from stdin.
+ */
+ fprintf(fp, "cd ");
+ for (ap = cwdname(); *ap != '\0'; ap++)
+ {
+ if (*ap == '\n')
+ fprintf(fp, "\"\n\"");
+ else
+ {
+ if (*ap != '/' && !isalnum(*ap))
+ fputc('\\', fp);
+
+ fputc(*ap, fp);
+ }
+ }
+ /* Test cd's exit status: die if the original directory has been
+ * removed, become unreadable or whatever
+ */
+ fprintf(fp, " || {\n\t echo 'Execution directory "
+ "inaccessible' >&2\n\t exit 1\n}\n");
- (void)strlcpy(atfile, _PATH_ATJOBS, sizeof atfile);
- ppos = atfile + strlen(_PATH_ATJOBS);
+ while((ch = getchar()) != EOF)
+ fputc(ch, fp);
- /*
- * Loop over all possible file names for running something at this
- * particular time, see if a file is there; the first empty slot at
- * any particular time is used. Lock the file _PATH_LOCKFILE first
- * to make sure we're alone when doing this.
- */
+ fprintf(fp, "\n");
+ if (ferror(fp))
+ panic("output error");
+
+ if (ferror(stdin))
+ panic("input error");
- PRIV_START
+ fclose(fp);
- if ((lockdes = open(_PATH_LOCKFILE, O_WRONLY | O_CREAT, 0600)) < 0)
- perr2("Cannot open lockfile ", _PATH_LOCKFILE);
+ /* Set the x bit so that we're ready to start executing
+ */
- lock.l_type = F_WRLCK;
- lock.l_whence = SEEK_SET;
- lock.l_start = 0;
- lock.l_len = 0;
+ if (fchmod(fd2, S_IRUSR | S_IWUSR | S_IXUSR) < 0)
+ perr("cannot give away file");
- act.sa_handler = alarmc;
- sigemptyset(&(act.sa_mask));
- act.sa_flags = 0;
+ close(fd2);
+ if (posixly_correct) {
+ struct tm runtime;
+ char timestr[TIMESIZE];
+ runtime = *localtime(&runtimer);
+ strftime(timestr, TIMESIZE, "%a %b %e %T %Y", &runtime);
+ fprintf(stderr, "job %ld at %s\n", jobno, timestr);
+ } else
+ fprintf(stderr, "Job %ld will be executed using /bin/sh\n", jobno);
+}
- /*
- * Set an alarm so a timeout occurs after ALARMC seconds, in case
- * something is seriously broken.
- */
- sigaction(SIGALRM, &act, NULL);
- alarm(ALARMC);
- fcntl(lockdes, F_SETLKW, &lock);
- alarm(0);
-
- for (i = 0; i < AT_MAXJOBS; i++) {
- sprintf(ppos, "%c%8lx.%3x", queue,
- (unsigned long) (runtimer / 60), i);
- for (ap = ppos; *ap != '\0'; ap++)
- if (*ap == ' ')
- *ap = '0';
-
- if (stat(atfile, &statbuf) != 0) {
- if (errno == ENOENT)
- break;
- else
- perr2("Cannot access ", _PATH_ATJOBS);
- }
- } /* for */
+static int
+in_job_list(long job, long *joblist, int len)
+{
+ int i;
- if (i >= AT_MAXJOBS)
- panic("Too many jobs already");
+ for (i = 0; i < len; i++)
+ if (job == joblist[i])
+ return 1;
- /*
- * Create the file. The x bit is only going to be set after it has
- * been completely written out, to make sure it is not executed in
- * the meantime. To make sure they do not get deleted, turn off
- * their r bit. Yes, this is a kluge.
- */
- cmask = umask(S_IRUSR | S_IWUSR | S_IXUSR);
- if ((fdes = creat(atfile, O_WRONLY)) == -1)
- perr("Cannot create atjob file");
+ return 0;
+}
- if ((fd2 = dup(fdes)) < 0)
- perr("Error in dup() of job file");
+static void
+list_one_job(char *name, long *joblist, int len, int *first)
+{
+ struct stat buf;
+ struct tm runtime;
+ unsigned long ctm;
+ char queue;
+ long jobno;
+ time_t runtimer;
+ char timestr[TIMESIZE];
+
+ if (stat(name, &buf) != 0)
+ perr("cannot stat in " ATJOB_DIR);
+
+ /* See it's a regular file and has its x bit turned on and
+ * is the user's
+ */
+ if (!S_ISREG(buf.st_mode)
+ || ((buf.st_uid != real_uid) && ! (real_uid == 0))
+ || !(S_IXUSR & buf.st_mode || atverify))
+ return;
+
+ if(sscanf(name, "%c%5lx%8lx", &queue, &jobno, &ctm)!=3)
+ return;
+
+ /* If jobs are given, only list those jobs */
+ if (joblist && !in_job_list(jobno, joblist, len))
+ return;
+
+ if (atqueue && (queue != atqueue))
+ return;
+
+ runtimer = 60*(time_t) ctm;
+ runtime = *localtime(&runtimer);
+ strftime(timestr, TIMESIZE, "%a %b %e %T %Y", &runtime);
+ if (*first) {
+ if (!posixly_correct)
+ printf("Date\t\t\t\tOwner\t\tQueue\tJob#\n");
+ *first=0;
+ }
+ if (posixly_correct)
+ printf("%ld\t%s\n", jobno, timestr);
+ else {
+ struct passwd *pw = getpwuid(buf.st_uid);
+
+ printf("%s\t%s\t%c%s\t%s\n",
+ timestr,
+ pw ? pw->pw_name : "???",
+ queue,
+ (S_IXUSR & buf.st_mode) ? "":"(done)",
+ name);
+ }
+}
- if (fchown(fd2, real_uid, -1) != 0)
- perr("Cannot give away file");
+static void
+list_jobs(long *joblist, int len)
+{
+ /* List all a user's jobs in the queue, by looping through ATJOB_DIR,
+ * or everybody's if we are root
+ */
+ DIR *spool;
+ struct dirent *dirent;
+ int first=1;
+
+#ifdef __FreeBSD__
+ (void) setlocale(LC_TIME, "");
+#endif
+
+ PRIV_START
+
+ if (chdir(ATJOB_DIR) != 0)
+ perr("cannot change to " ATJOB_DIR);
+
+ if (joblist) { /* Force order to match POSIX */
+ char jobglob[32];
+ glob_t g;
+ int i;
- PRIV_END
+ sprintf(jobglob, "?%05lx*", joblist[0]);
+ g.gl_offs = 0;
+ glob(jobglob, GLOB_DOOFFS, NULL, &g);
+ for (i = 1; i < len; i++) {
+ sprintf(jobglob, "?%05lx*", joblist[i]);
+ glob(jobglob, GLOB_DOOFFS | GLOB_APPEND, NULL, &g);
+ }
+ for (i = 0; i < g.gl_pathc; i++) {
+ list_one_job(g.gl_pathv[i], joblist, len, &first);
+ }
+ globfree(&g);
+ } else {
+ if ((spool = opendir(".")) == NULL)
+ perr("cannot open " ATJOB_DIR);
- /*
- * We no longer need suid root; now we just need to be able to
- * write to the directory, if necessary.
+ /* Loop over every file in the directory
*/
+ while((dirent = readdir(spool)) != NULL) {
+ list_one_job(dirent->d_name, joblist, len, &first);
+ }
+ closedir(spool);
+ }
+ PRIV_END
+}
- REDUCE_PRIV(0);
+static void
+process_jobs(int argc, char **argv, int what)
+{
+ /* Delete every argument (job - ID) given
+ */
+ int i;
+ struct stat buf;
+ DIR *spool;
+ struct dirent *dirent;
+ unsigned long ctm;
+ char queue;
+ long jobno;
- /*
- * We've successfully created the file; let's set the flag so it
- * gets removed in case of an interrupt or error.
- */
- fcreated = 1;
+ PRIV_START
- /* Now we can release the lock, so other people can access it */
- lock.l_type = F_UNLCK;
- lock.l_whence = SEEK_SET;
- lock.l_start = 0;
- lock.l_len = 0;
- fcntl(lockdes, F_SETLKW, &lock);
- close(lockdes);
+ if (chdir(ATJOB_DIR) != 0)
+ perr("cannot change to " ATJOB_DIR);
- if ((fp = fdopen(fdes, "w")) == NULL)
- panic("Cannot reopen atjob file");
+ if ((spool = opendir(".")) == NULL)
+ perr("cannot open " ATJOB_DIR);
- /*
- * Get the userid to mail to, first by trying getlogin(), which
- * reads /etc/utmp, then from LOGNAME, finally from getpwuid().
- */
- mailname = getlogin();
- if (mailname == NULL)
- mailname = getenv("LOGNAME");
-
- if ((mailname == NULL) || (mailname[0] == '\0')
- || (strlen(mailname) > 8)) {
- pass_entry = getpwuid(getuid());
- if (pass_entry != NULL)
- mailname = pass_entry->pw_name;
- }
+ PRIV_END
- if (atinput != (char *) NULL) {
- fpin = freopen(atinput, "r", stdin);
- if (fpin == NULL)
- perr("Cannot open input file");
- }
- fprintf(fp, "#! /bin/sh\n# mail %8s %d\n", mailname, send_mail);
+ /* Loop over every file in the directory
+ */
+ while((dirent = readdir(spool)) != NULL) {
- /* Write out the umask at the time of invocation */
- fprintf(fp, "umask %lo\n", (unsigned long) cmask);
+ PRIV_START
+ if (stat(dirent->d_name, &buf) != 0)
+ perr("cannot stat in " ATJOB_DIR);
+ PRIV_END
- /*
- * Write out the environment. Anything that may look like a special
- * character to the shell is quoted, except for \n, which is done
- * with a pair of "'s. Dont't export the no_export list (such as
- * TERM or DISPLAY) because we don't want these.
- */
- for (atenv = environ; *atenv != NULL; atenv++) {
- int export = 1;
- char *eqp;
-
- eqp = strchr(*atenv, '=');
- if (ap == NULL)
- eqp = *atenv;
- else {
- int i;
-
- for (i = 0;i < sizeof(no_export) /
- sizeof(no_export[0]); i++) {
- export = export
- && (strncmp(*atenv, no_export[i],
- (size_t) (eqp - *atenv)) != 0);
- }
- eqp++;
- }
+ if(sscanf(dirent->d_name, "%c%5lx%8lx", &queue, &jobno, &ctm)!=3)
+ continue;
- if (export) {
- fwrite(*atenv, sizeof(char), eqp - *atenv, fp);
- for (ap = eqp; *ap != '\0'; ap++) {
- if (*ap == '\n')
- fprintf(fp, "\"\n\"");
- else {
- if (!isalnum(*ap))
- fputc('\\', fp);
-
- fputc(*ap, fp);
- }
- }
- fputs("; export ", fp);
- fwrite(*atenv, sizeof(char), eqp - *atenv - 1, fp);
- fputc('\n', fp);
+ for (i=optind; i < argc; i++) {
+ if (atoi(argv[i]) == jobno || strcmp(argv[i], dirent->d_name)==0) {
+ if ((buf.st_uid != real_uid) && !(real_uid == 0))
+ errx(EXIT_FAILURE, "%s: not owner", argv[i]);
+ switch (what) {
+ case ATRM:
- }
- }
- /*
- * Cd to the directory at the time and write out all the commands
- * the user supplies from stdin.
- */
- fprintf(fp, "cd %s\n", cwdname());
+ PRIV_START
- while ((ch = getchar()) != EOF)
- fputc(ch, fp);
+ if (unlink(dirent->d_name) != 0)
+ perr(dirent->d_name);
- fprintf(fp, "\n");
- if (ferror(fp))
- panic("Output error");
+ PRIV_END
- if (ferror(stdin))
- panic("Input error");
+ break;
- fclose(fp);
+ case CAT:
+ {
+ FILE *fp;
+ int ch;
- /*
- * Set the x bit so that we're ready to start executing
- */
- if (fchmod(fd2, S_IRUSR | S_IWUSR | S_IXUSR) < 0)
- perr("Cannot give away file");
+ PRIV_START
- close(fd2);
- fprintf(stderr, "Job %s will be executed using /bin/sh\n", ppos);
-}
+ fp = fopen(dirent->d_name,"r");
-static void
-list_jobs()
-{
- /*
- * List all a user's jobs in the queue, by looping through
- * _PATH_ATJOBS, or everybody's if we are root
- */
- struct passwd *pw;
- DIR *spool;
- struct dirent *dirent;
- struct stat buf;
- struct tm runtime;
- unsigned long ctm;
- char queue;
- time_t runtimer;
- char timestr[TIMESIZE];
- int first = 1;
+ PRIV_END
- PRIV_START
+ if (!fp) {
+ perr("cannot open file");
+ }
+ while((ch = getc(fp)) != EOF) {
+ putchar(ch);
+ }
+ }
+ break;
+
+ default:
+ errx(EXIT_FAILURE, "internal error, process_jobs = %d",
+ what);
+ }
+ }
+ }
+ }
+} /* process_jobs */
- if (chdir(_PATH_ATJOBS) != 0)
- perr2("Cannot change to ", _PATH_ATJOBS);
+#define ATOI2(ar) ((ar)[0] - '0') * 10 + ((ar)[1] - '0'); (ar) += 2;
- if ((spool = opendir(".")) == NULL)
- perr2("Cannot open ", _PATH_ATJOBS);
-
- /* Loop over every file in the directory */
- while ((dirent = readdir(spool)) != NULL) {
- if (stat(dirent->d_name, &buf) != 0)
- perr2("Cannot stat in ", _PATH_ATJOBS);
-
- /*
- * See it's a regular file and has its x bit turned on and
- * is the user's
- */
- if (!S_ISREG(buf.st_mode)
- || ((buf.st_uid != real_uid) && !(real_uid == 0))
- || !(S_IXUSR & buf.st_mode || atverify))
- continue;
-
- if (sscanf(dirent->d_name, "%c%8lx", &queue, &ctm) != 2)
- continue;
-
- if (atqueue && (queue != atqueue))
- continue;
-
- runtimer = 60 * (time_t) ctm;
- runtime = *localtime(&runtimer);
- strftime(timestr, TIMESIZE, "%X %x", &runtime);
- if (first) {
- printf("Date\t\t\tOwner\tQueue\tJob#\n");
- first = 0;
- }
- pw = getpwuid(buf.st_uid);
-
- printf("%s\t%s\t%c%s\t%s\n",
- timestr,
- pw ? pw->pw_name : "???",
- queue,
- (S_IXUSR & buf.st_mode) ? "" : "(done)",
- dirent->d_name);
+static time_t
+ttime(const char *arg)
+{
+ /*
+ * This is pretty much a copy of stime_arg1() from touch.c. I changed
+ * the return value and the argument list because it's more convenient
+ * (IMO) to do everything in one place. - Joe Halpin
+ */
+ struct timeval tv[2];
+ time_t now;
+ struct tm *t;
+ int yearset;
+ char *p;
+
+ if (gettimeofday(&tv[0], NULL))
+ panic("Cannot get current time");
+
+ /* Start with the current time. */
+ now = tv[0].tv_sec;
+ if ((t = localtime(&now)) == NULL)
+ panic("localtime");
+ /* [[CC]YY]MMDDhhmm[.SS] */
+ if ((p = strchr(arg, '.')) == NULL)
+ t->tm_sec = 0; /* Seconds defaults to 0. */
+ else {
+ if (strlen(p + 1) != 2)
+ goto terr;
+ *p++ = '\0';
+ t->tm_sec = ATOI2(p);
+ }
+
+ yearset = 0;
+ switch(strlen(arg)) {
+ case 12: /* CCYYMMDDhhmm */
+ t->tm_year = ATOI2(arg);
+ t->tm_year *= 100;
+ yearset = 1;
+ /* FALLTHROUGH */
+ case 10: /* YYMMDDhhmm */
+ if (yearset) {
+ yearset = ATOI2(arg);
+ t->tm_year += yearset;
+ } else {
+ yearset = ATOI2(arg);
+ t->tm_year = yearset + 2000;
}
- PRIV_END
+ t->tm_year -= 1900; /* Convert to UNIX time. */
+ /* FALLTHROUGH */
+ case 8: /* MMDDhhmm */
+ t->tm_mon = ATOI2(arg);
+ --t->tm_mon; /* Convert from 01-12 to 00-11 */
+ t->tm_mday = ATOI2(arg);
+ t->tm_hour = ATOI2(arg);
+ t->tm_min = ATOI2(arg);
+ break;
+ default:
+ goto terr;
+ }
+
+ t->tm_isdst = -1; /* Figure out DST. */
+ tv[0].tv_sec = tv[1].tv_sec = mktime(t);
+ if (tv[0].tv_sec != -1)
+ return tv[0].tv_sec;
+ else
+terr:
+ panic(
+ "out of range or illegal time specification: [[CC]YY]MMDDhhmm[.SS]");
}
-static void
-delete_jobs(argc, argv)
- int argc;
- char **argv;
+static long *
+get_job_list(int argc, char *argv[], int *joblen)
{
- /* Delete every argument (job - ID) given */
- int i;
- struct stat buf;
-
- PRIV_START
-
- if (chdir(_PATH_ATJOBS) != 0)
- perr2("Cannot change to ", _PATH_ATJOBS);
-
- for (i = optind; i < argc; i++) {
- if (stat(argv[i], &buf) != 0)
- perr(argv[i]);
- if ((buf.st_uid != real_uid) && !(real_uid == 0)) {
- fprintf(stderr, "%s: Not owner\n", argv[i]);
- exit(EXIT_FAILURE);
- }
- if (unlink(argv[i]) != 0)
- perr(argv[i]);
+ int i, len;
+ long *joblist;
+ char *ep;
+
+ joblist = NULL;
+ len = argc;
+ if (len > 0) {
+ if ((joblist = malloc(len * sizeof(*joblist))) == NULL)
+ panic("out of memory");
+
+ for (i = 0; i < argc; i++) {
+ errno = 0;
+ if ((joblist[i] = strtol(argv[i], &ep, 10)) < 0 ||
+ ep == argv[i] || *ep != '\0' || errno)
+ panic("invalid job number");
}
- PRIV_END
-} /* delete_jobs */
+ }
-/* Global functions */
+ *joblen = len;
+ return joblist;
+}
int
-main(argc, argv)
- int argc;
- char **argv;
+main(int argc, char **argv)
{
- int c;
- char queue = 'a';
- char *pgm;
-
- enum {
- ATQ, ATRM, AT, BATCH
- }; /* what program we want to run */
- int program = AT; /* our default program */
- char *options = "q:f:mv"; /* default options for at */
- time_t timer;
-
- RELINQUISH_PRIVS
-
- /* Eat any leading paths */
- if ((pgm = strrchr(argv[0], '/')) == NULL)
- pgm = argv[0];
- else
- pgm++;
-
- namep = pgm;
-
- /* find out what this program is supposed to do */
- if (strcmp(pgm, "atq") == 0) {
- program = ATQ;
- options = "q:v";
- } else if (strcmp(pgm, "atrm") == 0) {
- program = ATRM;
- options = "";
- } else if (strcmp(pgm, "batch") == 0) {
- program = BATCH;
- options = "f:mv";
+ int c;
+ char queue = DEFAULT_AT_QUEUE;
+ char queue_set = 0;
+ char *pgm;
+
+ int program = AT; /* our default program */
+ const char *options = "q:f:t:rmvldbc"; /* default options for at */
+ time_t timer;
+ long *joblist;
+ int joblen;
+
+ posixly_correct = COMPAT_MODE("bin/at", "Unix2003");
+ joblist = NULL;
+ joblen = 0;
+ timer = -1;
+ RELINQUISH_PRIVS
+
+ /* Eat any leading paths
+ */
+ if ((pgm = strrchr(argv[0], '/')) == NULL)
+ pgm = argv[0];
+ else
+ pgm++;
+
+ namep = pgm;
+
+ /* find out what this program is supposed to do
+ */
+ if (strcmp(pgm, "atq") == 0) {
+ program = ATQ;
+ options = "q:v";
+ }
+ else if (strcmp(pgm, "atrm") == 0) {
+ program = ATRM;
+ options = "";
+ }
+ else if (strcmp(pgm, "batch") == 0) {
+ program = BATCH;
+ options = "f:q:mv";
+ }
+
+ /* process whatever options we can process
+ */
+ opterr=1;
+ while ((c=getopt(argc, argv, options)) != -1)
+ switch (c) {
+ case 'v': /* verify time settings */
+ atverify = 1;
+ break;
+
+ case 'm': /* send mail when job is complete */
+ send_mail = 1;
+ break;
+
+ case 'f':
+ atinput = optarg;
+ break;
+
+ case 'q': /* specify queue */
+ if (strlen(optarg) > 1)
+ usage();
+
+ atqueue = queue = *optarg;
+ if (!(islower(queue)||isupper(queue)))
+ usage();
+
+ queue_set = 1;
+ break;
+
+ case 'd':
+ warnx("-d is deprecated; use -r instead");
+ /* fall through to 'r' */
+
+ case 'r':
+ if (program != AT)
+ usage();
+
+ program = ATRM;
+ options = "";
+ break;
+
+ case 't':
+ if (program != AT)
+ usage();
+ timer = ttime(optarg);
+ break;
+
+ case 'l':
+ if (program != AT)
+ usage();
+
+ program = ATQ;
+ options = "q:";
+ break;
+
+ case 'b':
+ if (program != AT)
+ usage();
+
+ program = BATCH;
+ options = "f:q:mv";
+ break;
+
+ case 'c':
+ program = CAT;
+ options = "";
+ break;
+
+ default:
+ usage();
+ break;
}
+ /* end of options eating
+ */
- /* process whatever options we can process */
- opterr = 1;
- while ((c = getopt(argc, argv, options)) != EOF)
- switch (c) {
- case 'v': /* verify time settings */
- atverify = 1;
- break;
-
- case 'm': /* send mail when job is complete */
- send_mail = 1;
- break;
-
- case 'f':
- atinput = optarg;
- break;
-
- case 'q': /* specify queue */
- if (strlen(optarg) > 1)
- usage();
-
- atqueue = queue = *optarg;
- if ((!islower(queue)) || (queue > 'l'))
- usage();
- break;
-
- default:
- usage();
- break;
- }
- /* end of options eating */
+ /* select our program
+ */
+ if(!check_permission())
+ errx(EXIT_FAILURE, "you do not have permission to use this program");
+ switch (program) {
+ case ATQ:
- /* select our program */
- if (!check_permission())
- {
- fprintf(stderr, "You do not have permission to use %s.\n",namep);
- exit(EXIT_FAILURE);
- }
- switch (program) {
- case ATQ:
+ REDUCE_PRIV(DAEMON_UID, DAEMON_GID)
- REDUCE_PRIV(0);
+ if (queue_set == 0)
+ joblist = get_job_list(argc - optind, argv + optind, &joblen);
+ list_jobs(joblist, joblen);
+ break;
- list_jobs();
- break;
+ case ATRM:
- case ATRM:
+ REDUCE_PRIV(DAEMON_UID, DAEMON_GID)
- REDUCE_PRIV(0);
+ process_jobs(argc, argv, ATRM);
+ break;
- delete_jobs(argc, argv);
- break;
+ case CAT:
- case AT:
- timer = parsetime(argc, argv);
- if (atverify) {
- struct tm *tm = localtime(&timer);
+ process_jobs(argc, argv, CAT);
+ break;
- fprintf(stderr, "%s\n", asctime(tm));
- }
- writefile(timer, queue);
- break;
+ case AT:
+ /*
+ * If timer is > -1, then the user gave the time with -t. In that
+ * case, it's already been set. If not, set it now.
+ */
+ if (timer == -1)
+ timer = parsetime(argc, argv);
- case BATCH:
- writefile(time(NULL), 'b');
- break;
+ if (atverify)
+ {
+ struct tm *tm = localtime(&timer);
+ fprintf(stderr, "%s\n", asctime(tm));
+ }
+ writefile(timer, queue);
+ break;
- default:
- panic("Internal error");
- break;
+ case BATCH:
+ if (queue_set)
+ queue = toupper(queue);
+ else
+ queue = DEFAULT_BATCH_QUEUE;
+
+ if (argc > optind)
+ timer = parsetime(argc, argv);
+ else
+ timer = time(NULL);
+
+ if (atverify)
+ {
+ struct tm *tm = localtime(&timer);
+ fprintf(stderr, "%s\n", asctime(tm));
}
- exit(EXIT_SUCCESS);
+
+ writefile(timer, queue);
+ break;
+
+ default:
+ panic("internal error");
+ break;
+ }
+ exit(EXIT_SUCCESS);
}
projects / apple / system_cmds.git / blobdiff