mirror of
https://github.com/pygos/init.git
synced 2024-11-24 03:50:43 +01:00
Remove cron daemon, rewritten and split off into seperate repo
Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
This commit is contained in:
David Oberhollenzer
parent
dc6358b0e1
commit
bf878d08dd
18 changed files with 2 additions and 1266 deletions
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@ -21,7 +21,6 @@ dist_man8_MANS =
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include lib/Makemodule.am
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include lib/Makemodule.am
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include cmd/Makemodule.am
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include cmd/Makemodule.am
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include initd/Makemodule.am
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include initd/Makemodule.am
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include crond/Makemodule.am
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install-exec-hook:
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install-exec-hook:
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(cd $(DESTDIR)$(sbindir); $(LN_S) shutdown reboot)
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(cd $(DESTDIR)$(sbindir); $(LN_S) shutdown reboot)
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@ -31,6 +30,3 @@ install-data-local:
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(cd $(DESTDIR)$(man8dir); $(LN_S) shutdown.8 reboot.8)
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(cd $(DESTDIR)$(man8dir); $(LN_S) shutdown.8 reboot.8)
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$(MKDIR_P) $(DESTDIR)$(SVCDIR)
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$(MKDIR_P) $(DESTDIR)$(SVCDIR)
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$(MKDIR_P) $(DESTDIR)$(TEMPLATEDIR)
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$(MKDIR_P) $(DESTDIR)$(TEMPLATEDIR)
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if GCROND
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$(MKDIR_P) $(DESTDIR)$(GCRONDIR)
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endif
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@ -1,9 +1,8 @@
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# About
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# About
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This directory contains the source code for a tiny service supervision
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This directory contains the source code for a tiny service supervision
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framework devised for the Pygos system, consisting of an init daemon,
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framework devised for the Pygos system, consisting of an init daemon and
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a _definitely_ non standards compliant cron implementation and various
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accompanying command line utilities.
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command line utilities.
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The programs of this package are developed first and foremost for GNU/Linux
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The programs of this package are developed first and foremost for GNU/Linux
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@ -46,8 +45,6 @@ command line tools.
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See [docs/services.md](docs/services.md) for more information on service
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See [docs/services.md](docs/services.md) for more information on service
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description files.
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description files.
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See [docs/gcron.md](docs/gcron.md) for details on the cron implementation.
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## Why
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## Why
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@ -26,11 +26,6 @@ service_CFLAGS = $(AM_CFLAGS)
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service_LDFLAGS = $(AM_LDFLAGS)
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service_LDFLAGS = $(AM_LDFLAGS)
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service_LDADD = libinit.a libcfg.a libutil.a
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service_LDADD = libinit.a libcfg.a libutil.a
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if GCROND
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service_SOURCES += cmd/service/schedule.c
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service_SOURCES += cmd/service/unschedule.c
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endif
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dist_man8_MANS += cmd/shutdown.8 cmd/service/service.8
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dist_man8_MANS += cmd/shutdown.8 cmd/service/service.8
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EXTRA_DIST += $(SRVHEADERS)
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EXTRA_DIST += $(SRVHEADERS)
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@ -1,90 +0,0 @@
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/* SPDX-License-Identifier: GPL-3.0-or-later */
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/*
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* Copyright (C) 2018 - David Oberhollenzer
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdio.h>
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#include <errno.h>
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#include "servicecmd.h"
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static int cmd_schedule(int argc, char **argv)
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{
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char *target, *linkname, *ptr;
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int ret = EXIT_FAILURE;
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struct stat sb;
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if (check_arguments(argv[0], argc, 2, 2))
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return EXIT_FAILURE;
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for (ptr = argv[1]; isalnum(*ptr) || *ptr == '_'; ++ptr)
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;
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if (*ptr != '\0') {
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fprintf(stderr, "Invalid service name '%s'\n", argv[1]);
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tell_read_help(argv[0]);
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return EXIT_FAILURE;
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}
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if (asprintf(&target, "%s/%s.gcron", TEMPLATEDIR, argv[1]) < 0) {
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perror("asprintf");
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return EXIT_FAILURE;
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}
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if (stat(target, &sb)) {
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fprintf(stderr, "%s: %s\n", target, strerror(errno));
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goto out_tgt;
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}
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if ((sb.st_mode & S_IFMT) != S_IFREG) {
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fprintf(stderr, "%s: must be a regular file\n", target);
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goto out_tgt;
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}
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if (asprintf(&linkname, "%s/%s", GCRONDIR, argv[1]) < 0) {
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perror("asprintf");
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goto out_tgt;
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}
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if (symlink(target, linkname)) {
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fprintf(stderr, "creating symlink '%s' -> '%s: %s\n",
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linkname, target, strerror(errno));
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goto out;
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}
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ret = EXIT_SUCCESS;
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out:
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free(linkname);
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out_tgt:
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free(target);
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return ret;
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}
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static command_t schedule = {
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.cmd = "schedule",
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.usage = "<name>",
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.s_desc = "enable a gcrond service",
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.l_desc = "This marks a gcrond service as enabled by creating a "
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"symlink in " GCRONDIR " pointing to a template file in "
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TEMPLATEDIR " with a .gcron extension.",
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.run_cmd = cmd_schedule,
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};
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REGISTER_COMMAND(schedule)
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@ -28,12 +28,6 @@ configuration directory, pointing to the service template file.
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An optional argument can be supplied to parameterize the template.
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An optional argument can be supplied to parameterize the template.
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.TP
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.TP
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.BR schedule " " \fI<service>\fP
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If built with support for gcrond, enable a gcron service by creating a symlink
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in the gcrond configuration directory, pointing to the service file.
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The extension \fB.gcron\fP is automatically appended to the service name.
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.TP
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.BR disable " " \fI<service>\fP " " \fI[arguments]\fP
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.BR disable " " \fI<service>\fP " " \fI[arguments]\fP
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Disable (but do not stop) a system service by removing the corresponding
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Disable (but do not stop) a system service by removing the corresponding
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symlink in the configuration directory.
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symlink in the configuration directory.
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@ -41,10 +35,6 @@ symlink in the configuration directory.
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If the service is parameterized, arguments have to be specified to disable
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If the service is parameterized, arguments have to be specified to disable
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the desired service instance.
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the desired service instance.
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.TP
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.TP
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.BR unschedule " " \fI<service>\fP
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If built with support for gcrond, disable a gcron service by removing the
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corresponding symlink in the gcron configuration directory.
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.TP
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.BR dumpscript " " \fI<service>\fP " " \fI[arguments]\fP
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.BR dumpscript " " \fI<service>\fP " " \fI[arguments]\fP
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Parse a service file from and produce a pseudo shell script containing the
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Parse a service file from and produce a pseudo shell script containing the
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exact commands executed when starting the service.
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exact commands executed when starting the service.
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@ -1,82 +0,0 @@
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/* SPDX-License-Identifier: GPL-3.0-or-later */
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/*
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* Copyright (C) 2018 - David Oberhollenzer
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdio.h>
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#include <errno.h>
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#include "servicecmd.h"
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static int cmd_unschedule(int argc, char **argv)
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{
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int ret = EXIT_FAILURE;
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char *linkname, *ptr;
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struct stat sb;
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if (check_arguments(argv[0], argc, 2, 2))
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return EXIT_FAILURE;
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for (ptr = argv[1]; isalnum(*ptr) || *ptr == '_'; ++ptr)
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;
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if (*ptr != '\0') {
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fprintf(stderr, "Invalid service name '%s'\n", argv[1]);
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tell_read_help(argv[0]);
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return EXIT_FAILURE;
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}
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if (asprintf(&linkname, "%s/%s.gcron", GCRONDIR, argv[1]) < 0) {
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perror("asprintf");
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return EXIT_FAILURE;
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}
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if (lstat(linkname, &sb)) {
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fprintf(stderr, "lstat %s: %s\n", linkname, strerror(errno));
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goto out;
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}
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if ((sb.st_mode & S_IFMT) != S_IFLNK) {
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fprintf(stderr, "error: '%s' is not a symlink!", linkname);
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goto out;
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}
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if (unlink(linkname)) {
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fprintf(stderr, "removing %s: %s\n",
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linkname, strerror(errno));
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goto out;
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}
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ret = EXIT_SUCCESS;
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out:
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free(linkname);
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return ret;
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}
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static command_t unschedule = {
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.cmd = "unschedule",
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.usage = "<name>",
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.s_desc = "disable a gcrond service",
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.l_desc = "This disables a gcrond service by removing the coresponding "
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"symlink in " GCRONDIR ".",
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.run_cmd = cmd_unschedule,
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};
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REGISTER_COMMAND(unschedule)
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12
configure.ac
12
configure.ac
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@ -36,20 +36,8 @@ UL_WARN_ADD([-pedantic])
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AC_SUBST([WARN_CFLAGS])
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AC_SUBST([WARN_CFLAGS])
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AC_ARG_WITH([gcrond],
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[AS_HELP_STRING([--without-gcrond], [Build without gcron daemon])],
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[case "${withval}" in
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yes) AM_CONDITIONAL([GCROND], [true]) ;;
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no) AM_CONDITIONAL([GCROND], [false]) ;;
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*) AC_MSG_ERROR([bad value ${withval} for --without-gcron]) ;;
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esac],
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[AM_CONDITIONAL([GCROND], [true])])
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AC_CONFIG_HEADERS([lib/include/config.h])
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AC_CONFIG_HEADERS([lib/include/config.h])
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AC_DEFINE_DIR(SVCDIR, sysconfdir/init.d, [Startup service directory])
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AC_DEFINE_DIR(SVCDIR, sysconfdir/init.d, [Startup service directory])
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AC_DEFINE_DIR(GCRONDIR, sysconfdir/gcron.d, [Cron service directory])
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AC_DEFINE_DIR(TEMPLATEDIR, datadir/init, [Service template directory])
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AC_DEFINE_DIR(TEMPLATEDIR, datadir/init, [Service template directory])
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AC_DEFINE_DIR(SCRIPTDIR, libexecdir/init, [Helper script directory])
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AC_DEFINE_DIR(SCRIPTDIR, libexecdir/init, [Helper script directory])
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AC_DEFINE_DIR(SOCKDIR, localstatedir/run, [Directory for initd socket])
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AC_DEFINE_DIR(SOCKDIR, localstatedir/run, [Directory for initd socket])
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@ -1,11 +0,0 @@
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if GCROND
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gcrond_SOURCES = crond/main.c crond/gcrond.h crond/runjob.c
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gcrond_SOURCES += crond/rdcron.c crond/delcron.c crond/crontab.c
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|
||||||
gcrond_SOURCES += crond/cronscan.c crond/crontab.h
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|
||||||
gcrond_CPPFLAGS = $(AM_CPPFLAGS)
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|
||||||
gcrond_CFLAGS = $(AM_CFLAGS)
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|
||||||
gcrond_LDFLAGS = $(AM_LDFLAGS)
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||||||
gcrond_LDADD = libcfg.a libutil.a
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||||||
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||||||
sbin_PROGRAMS += gcrond
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|
||||||
endif
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|
||||||
|
|
@ -1,77 +0,0 @@
|
||||||
/* SPDX-License-Identifier: GPL-3.0-or-later */
|
|
||||||
/*
|
|
||||||
* Copyright (C) 2018 - David Oberhollenzer
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
#include <sys/types.h>
|
|
||||||
#include <sys/stat.h>
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|
||||||
#include <stddef.h>
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||||||
#include <dirent.h>
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|
||||||
#include <string.h>
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|
||||||
#include <errno.h>
|
|
||||||
#include <stdio.h>
|
|
||||||
#include <fcntl.h>
|
|
||||||
#include <ctype.h>
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|
||||||
|
|
||||||
#include "crontab.h"
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|
||||||
|
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||||||
int cronscan(const char *directory, crontab_t **list)
|
|
||||||
{
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||||||
struct dirent *ent;
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||||||
int dfd, ret = 0;
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||||||
crontab_t *cron;
|
|
||||||
DIR *dir;
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|
||||||
|
|
||||||
dir = opendir(directory);
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|
||||||
if (dir == NULL) {
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|
||||||
perror(directory);
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|
||||||
return -1;
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|
||||||
}
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|
||||||
|
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||||||
dfd = dirfd(dir);
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|
||||||
if (dfd < 0) {
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|
||||||
perror(directory);
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|
||||||
closedir(dir);
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|
||||||
return -1;
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|
||||||
}
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|
||||||
|
|
||||||
for (;;) {
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||||||
errno = 0;
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|
||||||
ent = readdir(dir);
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|
||||||
|
|
||||||
if (ent == NULL) {
|
|
||||||
if (errno != 0) {
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|
||||||
perror(directory);
|
|
||||||
ret = -1;
|
|
||||||
}
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|
||||||
break;
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|
||||||
}
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||||||
|
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||||||
if (!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, ".."))
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||||||
continue;
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|
||||||
|
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||||||
cron = rdcron(dfd, ent->d_name);
|
|
||||||
if (cron == NULL) {
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|
||||||
ret = -1;
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|
||||||
continue;
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|
||||||
}
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|
||||||
|
|
||||||
cron->next = *list;
|
|
||||||
*list = cron;
|
|
||||||
}
|
|
||||||
|
|
||||||
closedir(dir);
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
@ -1,50 +0,0 @@
|
||||||
/* SPDX-License-Identifier: GPL-3.0-or-later */
|
|
||||||
/*
|
|
||||||
* Copyright (C) 2018 - David Oberhollenzer
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
#include <string.h>
|
|
||||||
|
|
||||||
#include "crontab.h"
|
|
||||||
|
|
||||||
void cron_tm_to_mask(crontab_t *out, struct tm *t)
|
|
||||||
{
|
|
||||||
memset(out, 0, sizeof(*out));
|
|
||||||
out->minute = 1UL << ((unsigned long)t->tm_min);
|
|
||||||
out->hour = 1 << t->tm_hour;
|
|
||||||
out->dayofmonth = 1 << (t->tm_mday - 1);
|
|
||||||
out->month = 1 << t->tm_mon;
|
|
||||||
out->dayofweek = 1 << t->tm_wday;
|
|
||||||
}
|
|
||||||
|
|
||||||
bool cron_should_run(const crontab_t *t, const crontab_t *mask)
|
|
||||||
{
|
|
||||||
if ((t->minute & mask->minute) == 0)
|
|
||||||
return false;
|
|
||||||
|
|
||||||
if ((t->hour & mask->hour) == 0)
|
|
||||||
return false;
|
|
||||||
|
|
||||||
if ((t->dayofmonth & mask->dayofmonth) == 0)
|
|
||||||
return false;
|
|
||||||
|
|
||||||
if ((t->month & mask->month) == 0)
|
|
||||||
return false;
|
|
||||||
|
|
||||||
if ((t->dayofweek & mask->dayofweek) == 0)
|
|
||||||
return false;
|
|
||||||
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
@ -1,55 +0,0 @@
|
||||||
/* SPDX-License-Identifier: GPL-3.0-or-later */
|
|
||||||
/*
|
|
||||||
* Copyright (C) 2018 - David Oberhollenzer
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
#ifndef CRONTAB_H
|
|
||||||
#define CRONTAB_H
|
|
||||||
|
|
||||||
#include <sys/types.h>
|
|
||||||
#include <stdbool.h>
|
|
||||||
#include <stdint.h>
|
|
||||||
#include <time.h>
|
|
||||||
|
|
||||||
#include "service.h"
|
|
||||||
|
|
||||||
typedef struct crontab_t {
|
|
||||||
struct crontab_t *next;
|
|
||||||
exec_t *exec;
|
|
||||||
char *ctty;
|
|
||||||
|
|
||||||
uid_t uid;
|
|
||||||
gid_t gid;
|
|
||||||
|
|
||||||
uint64_t minute;
|
|
||||||
uint32_t hour;
|
|
||||||
uint32_t dayofmonth;
|
|
||||||
uint16_t month;
|
|
||||||
uint8_t dayofweek;
|
|
||||||
|
|
||||||
unsigned int tty_truncate : 1;
|
|
||||||
} crontab_t;
|
|
||||||
|
|
||||||
crontab_t *rdcron(int dirfd, const char *filename);
|
|
||||||
|
|
||||||
void delcron(crontab_t *cron);
|
|
||||||
|
|
||||||
int cronscan(const char *directory, crontab_t **list);
|
|
||||||
|
|
||||||
void cron_tm_to_mask(crontab_t *out, struct tm *t);
|
|
||||||
|
|
||||||
bool cron_should_run(const crontab_t *t, const crontab_t *mask);
|
|
||||||
|
|
||||||
#endif /* CRONTAB_H */
|
|
||||||
|
|
@ -1,38 +0,0 @@
|
||||||
/* SPDX-License-Identifier: GPL-3.0-or-later */
|
|
||||||
/*
|
|
||||||
* Copyright (C) 2018 - David Oberhollenzer
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
#include <stdlib.h>
|
|
||||||
|
|
||||||
#include "crontab.h"
|
|
||||||
|
|
||||||
void delcron(crontab_t *cron)
|
|
||||||
{
|
|
||||||
exec_t *e;
|
|
||||||
|
|
||||||
if (cron == NULL)
|
|
||||||
return;
|
|
||||||
|
|
||||||
while (cron->exec != NULL) {
|
|
||||||
e = cron->exec;
|
|
||||||
cron->exec = e->next;
|
|
||||||
|
|
||||||
free(e);
|
|
||||||
}
|
|
||||||
|
|
||||||
free(cron->ctty);
|
|
||||||
free(cron);
|
|
||||||
}
|
|
||||||
|
|
@ -1,37 +0,0 @@
|
||||||
/* SPDX-License-Identifier: GPL-3.0-or-later */
|
|
||||||
/*
|
|
||||||
* Copyright (C) 2018 - David Oberhollenzer
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
#ifndef GCROND_H
|
|
||||||
#define GCROND_H
|
|
||||||
|
|
||||||
#include <sys/types.h>
|
|
||||||
#include <sys/wait.h>
|
|
||||||
#include <string.h>
|
|
||||||
#include <stdlib.h>
|
|
||||||
#include <unistd.h>
|
|
||||||
#include <signal.h>
|
|
||||||
#include <stdio.h>
|
|
||||||
#include <errno.h>
|
|
||||||
|
|
||||||
#include "crontab.h"
|
|
||||||
#include "config.h"
|
|
||||||
#include "util.h"
|
|
||||||
|
|
||||||
int runjob(crontab_t *tab);
|
|
||||||
|
|
||||||
#endif /* GCROND_H */
|
|
||||||
|
|
||||||
135
crond/main.c
135
crond/main.c
|
|
@ -1,135 +0,0 @@
|
||||||
/* SPDX-License-Identifier: GPL-3.0-or-later */
|
|
||||||
/*
|
|
||||||
* Copyright (C) 2018 - David Oberhollenzer
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
#include "gcrond.h"
|
|
||||||
|
|
||||||
static crontab_t *jobs;
|
|
||||||
static sig_atomic_t run = 1;
|
|
||||||
static sig_atomic_t rescan = 1;
|
|
||||||
|
|
||||||
static void read_config(void)
|
|
||||||
{
|
|
||||||
if (cronscan(GCRONDIR, &jobs)) {
|
|
||||||
fputs("Error reading configuration. Continuing anyway.\n",
|
|
||||||
stderr);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
static void cleanup_config(void)
|
|
||||||
{
|
|
||||||
crontab_t *t;
|
|
||||||
|
|
||||||
while (jobs != NULL) {
|
|
||||||
t = jobs;
|
|
||||||
jobs = jobs->next;
|
|
||||||
delcron(t);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
static int calc_timeout(void)
|
|
||||||
{
|
|
||||||
time_t now = time(NULL), future;
|
|
||||||
struct tm tmstruct;
|
|
||||||
crontab_t mask, *t;
|
|
||||||
int minutes;
|
|
||||||
|
|
||||||
for (minutes = 0; minutes < 120; ++minutes) {
|
|
||||||
future = now + minutes * 60;
|
|
||||||
|
|
||||||
localtime_r(&future, &tmstruct);
|
|
||||||
cron_tm_to_mask(&mask, &tmstruct);
|
|
||||||
|
|
||||||
for (t = jobs; t != NULL; t = t->next) {
|
|
||||||
if (cron_should_run(t, &mask))
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
out:
|
|
||||||
return minutes ? minutes * 60 : 60;
|
|
||||||
}
|
|
||||||
|
|
||||||
static void runjobs(void)
|
|
||||||
{
|
|
||||||
time_t now = time(NULL);
|
|
||||||
struct tm tmstruct;
|
|
||||||
crontab_t mask, *t;
|
|
||||||
|
|
||||||
localtime_r(&now, &tmstruct);
|
|
||||||
cron_tm_to_mask(&mask, &tmstruct);
|
|
||||||
|
|
||||||
for (t = jobs; t != NULL; t = t->next) {
|
|
||||||
if (cron_should_run(t, &mask))
|
|
||||||
runjob(t);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
static void sighandler(int signo)
|
|
||||||
{
|
|
||||||
pid_t pid;
|
|
||||||
|
|
||||||
switch (signo) {
|
|
||||||
case SIGINT:
|
|
||||||
case SIGTERM:
|
|
||||||
run = 0;
|
|
||||||
break;
|
|
||||||
case SIGHUP:
|
|
||||||
rescan = 1;
|
|
||||||
break;
|
|
||||||
case SIGCHLD:
|
|
||||||
while ((pid = waitpid(-1, NULL, WNOHANG)) != -1)
|
|
||||||
;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
int main(void)
|
|
||||||
{
|
|
||||||
struct timespec stime;
|
|
||||||
struct sigaction act;
|
|
||||||
int timeout;
|
|
||||||
|
|
||||||
memset(&act, 0, sizeof(act));
|
|
||||||
act.sa_handler = sighandler;
|
|
||||||
sigaction(SIGINT, &act, NULL);
|
|
||||||
sigaction(SIGTERM, &act, NULL);
|
|
||||||
sigaction(SIGHUP, &act, NULL);
|
|
||||||
sigaction(SIGCHLD, &act, NULL);
|
|
||||||
|
|
||||||
while (run) {
|
|
||||||
if (rescan == 1) {
|
|
||||||
cleanup_config();
|
|
||||||
read_config();
|
|
||||||
timeout = 60;
|
|
||||||
rescan = 0;
|
|
||||||
} else {
|
|
||||||
runjobs();
|
|
||||||
timeout = calc_timeout();
|
|
||||||
}
|
|
||||||
|
|
||||||
stime.tv_sec = timeout;
|
|
||||||
stime.tv_nsec = 0;
|
|
||||||
|
|
||||||
while (nanosleep(&stime, &stime) != 0 && run && !rescan) {
|
|
||||||
if (errno != EINTR) {
|
|
||||||
perror("nanosleep");
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return EXIT_SUCCESS;
|
|
||||||
}
|
|
||||||
503
crond/rdcron.c
503
crond/rdcron.c
|
|
@ -1,503 +0,0 @@
|
||||||
/* SPDX-License-Identifier: GPL-3.0-or-later */
|
|
||||||
/*
|
|
||||||
* Copyright (C) 2018 - David Oberhollenzer
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
#include <sys/types.h>
|
|
||||||
#include <sys/stat.h>
|
|
||||||
#include <unistd.h>
|
|
||||||
#include <string.h>
|
|
||||||
#include <stdlib.h>
|
|
||||||
#include <limits.h>
|
|
||||||
#include <stdio.h>
|
|
||||||
#include <errno.h>
|
|
||||||
#include <fcntl.h>
|
|
||||||
#include <ctype.h>
|
|
||||||
#include <pwd.h>
|
|
||||||
#include <grp.h>
|
|
||||||
|
|
||||||
#include "crontab.h"
|
|
||||||
#include "libcfg.h"
|
|
||||||
#include "util.h"
|
|
||||||
|
|
||||||
|
|
||||||
static const enum_map_t weekday[] = {
|
|
||||||
{ "MON", 1 },
|
|
||||||
{ "TUE", 2 },
|
|
||||||
{ "WED", 3 },
|
|
||||||
{ "THU", 4 },
|
|
||||||
{ "FRI", 5 },
|
|
||||||
{ "SAT", 6 },
|
|
||||||
{ "SUN", 0 },
|
|
||||||
};
|
|
||||||
|
|
||||||
static const enum_map_t month[] = {
|
|
||||||
{ "JAN", 1 },
|
|
||||||
{ "FEB", 2 },
|
|
||||||
{ "MAR", 3 },
|
|
||||||
{ "APR", 4 },
|
|
||||||
{ "MAY", 5 },
|
|
||||||
{ "JUN", 6 },
|
|
||||||
{ "JUL", 7 },
|
|
||||||
{ "AUG", 8 },
|
|
||||||
{ "SEP", 9 },
|
|
||||||
{ "OCT", 10 },
|
|
||||||
{ "NOV", 11 },
|
|
||||||
{ "DEC", 12 },
|
|
||||||
};
|
|
||||||
|
|
||||||
static const struct {
|
|
||||||
const char *macro;
|
|
||||||
crontab_t tab;
|
|
||||||
} intervals[] = {
|
|
||||||
{
|
|
||||||
.macro = "yearly",
|
|
||||||
.tab = {
|
|
||||||
.minute = 0x01,
|
|
||||||
.hour = 0x01,
|
|
||||||
.dayofmonth = 0x01,
|
|
||||||
.month = 0x01,
|
|
||||||
.dayofweek = 0xFF
|
|
||||||
},
|
|
||||||
}, {
|
|
||||||
.macro = "annually",
|
|
||||||
.tab = {
|
|
||||||
.minute = 0x01,
|
|
||||||
.hour = 0x01,
|
|
||||||
.dayofmonth = 0x01,
|
|
||||||
.month = 0x01,
|
|
||||||
.dayofweek = 0xFF
|
|
||||||
},
|
|
||||||
}, {
|
|
||||||
.macro = "monthly",
|
|
||||||
.tab = {
|
|
||||||
.minute = 0x01,
|
|
||||||
.hour = 0x01,
|
|
||||||
.dayofmonth = 0x01,
|
|
||||||
.month = 0xFFFF,
|
|
||||||
.dayofweek = 0xFF
|
|
||||||
},
|
|
||||||
}, {
|
|
||||||
.macro = "weekly",
|
|
||||||
.tab = {
|
|
||||||
.minute = 0x01,
|
|
||||||
.hour = 0x01,
|
|
||||||
.dayofmonth = 0xFFFFFFFF,
|
|
||||||
.month = 0xFFFF,
|
|
||||||
.dayofweek = 0x01
|
|
||||||
},
|
|
||||||
}, {
|
|
||||||
.macro = "daily",
|
|
||||||
.tab = {
|
|
||||||
.minute = 0x01,
|
|
||||||
.hour = 0x01,
|
|
||||||
.dayofmonth = 0xFFFFFFFF,
|
|
||||||
.month = 0xFFFF,
|
|
||||||
.dayofweek = 0xFF
|
|
||||||
},
|
|
||||||
}, {
|
|
||||||
.macro = "hourly",
|
|
||||||
.tab = {
|
|
||||||
.minute = 0x01,
|
|
||||||
.hour = 0xFFFFFFFF,
|
|
||||||
.dayofmonth = 0xFFFFFFFF,
|
|
||||||
.month = 0xFFFF,
|
|
||||||
.dayofweek = 0xFF
|
|
||||||
},
|
|
||||||
},
|
|
||||||
};
|
|
||||||
|
|
||||||
/*****************************************************************************/
|
|
||||||
|
|
||||||
static int try_unescape(char *arg, rdline_t *rd)
|
|
||||||
{
|
|
||||||
if (unescape(arg)) {
|
|
||||||
fprintf(stderr, "%s: %zu: malformed string constant\n",
|
|
||||||
rd->filename, rd->lineno);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static char *try_strdup(const char *str, rdline_t *rd)
|
|
||||||
{
|
|
||||||
char *out = strdup(str);
|
|
||||||
|
|
||||||
if (out == NULL) {
|
|
||||||
fprintf(stderr, "%s: %zu: out of memory\n",
|
|
||||||
rd->filename, rd->lineno);
|
|
||||||
}
|
|
||||||
return out;
|
|
||||||
}
|
|
||||||
|
|
||||||
static char *readnum(char *line, int *out, int minval, int maxval,
|
|
||||||
const enum_map_t *mnemonic, rdline_t *rd)
|
|
||||||
{
|
|
||||||
int i, temp, value = 0;
|
|
||||||
const enum_map_t *ev;
|
|
||||||
|
|
||||||
if (!isdigit(*line)) {
|
|
||||||
if (!mnemonic)
|
|
||||||
goto fail_mn;
|
|
||||||
|
|
||||||
for (i = 0; isalnum(line[i]); ++i)
|
|
||||||
;
|
|
||||||
if (i == 0)
|
|
||||||
goto fail_mn;
|
|
||||||
|
|
||||||
temp = line[i];
|
|
||||||
line[i] = '\0';
|
|
||||||
ev = enum_by_name(mnemonic, line);
|
|
||||||
if (!ev) {
|
|
||||||
fprintf(stderr, "%s: %zu: unexpected '%s'",
|
|
||||||
rd->filename, rd->lineno, line);
|
|
||||||
}
|
|
||||||
line[i] = temp;
|
|
||||||
if (!ev)
|
|
||||||
return NULL;
|
|
||||||
*out = ev->value;
|
|
||||||
return line + i;
|
|
||||||
}
|
|
||||||
|
|
||||||
while (isdigit(*line)) {
|
|
||||||
i = ((*(line++)) - '0');
|
|
||||||
if (value > (maxval - i) / 10)
|
|
||||||
goto fail_of;
|
|
||||||
value = value * 10 + i;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (value < minval)
|
|
||||||
goto fail_uf;
|
|
||||||
|
|
||||||
*out = value;
|
|
||||||
return line;
|
|
||||||
fail_of:
|
|
||||||
fprintf(stderr, "%s: %zu: value exceeds maximum (%d > %d)\n",
|
|
||||||
rd->filename, rd->lineno, value, maxval);
|
|
||||||
return NULL;
|
|
||||||
fail_uf:
|
|
||||||
fprintf(stderr, "%s: %zu: value too small (%d < %d)\n",
|
|
||||||
rd->filename, rd->lineno, value, minval);
|
|
||||||
return NULL;
|
|
||||||
fail_mn:
|
|
||||||
fprintf(stderr, "%s: %zu: expected numeric value",
|
|
||||||
rd->filename, rd->lineno);
|
|
||||||
return NULL;
|
|
||||||
}
|
|
||||||
|
|
||||||
static char *readfield(char *line, uint64_t *out, int minval, int maxval,
|
|
||||||
const enum_map_t *mnemonic, rdline_t *rd)
|
|
||||||
{
|
|
||||||
int value, endvalue, step;
|
|
||||||
uint64_t v = 0;
|
|
||||||
next:
|
|
||||||
if (*line == '*') {
|
|
||||||
++line;
|
|
||||||
value = minval;
|
|
||||||
endvalue = maxval;
|
|
||||||
} else {
|
|
||||||
line = readnum(line, &value, minval, maxval, mnemonic, rd);
|
|
||||||
if (!line)
|
|
||||||
goto fail;
|
|
||||||
|
|
||||||
if (*line == '-') {
|
|
||||||
line = readnum(line + 1, &endvalue, minval, maxval,
|
|
||||||
mnemonic, rd);
|
|
||||||
if (!line)
|
|
||||||
goto fail;
|
|
||||||
} else {
|
|
||||||
endvalue = value;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
if (endvalue < value)
|
|
||||||
goto fail;
|
|
||||||
|
|
||||||
if (*line == '/') {
|
|
||||||
line = readnum(line + 1, &step, 1, maxval + 1, NULL, rd);
|
|
||||||
if (!line)
|
|
||||||
goto fail;
|
|
||||||
} else {
|
|
||||||
step = 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
while (value <= endvalue) {
|
|
||||||
v |= 1UL << (unsigned long)(value - minval);
|
|
||||||
value += step;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (*line == ',' || *line == ' ') {
|
|
||||||
++line;
|
|
||||||
goto next;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (*line != '\0')
|
|
||||||
goto fail;
|
|
||||||
|
|
||||||
*out = v;
|
|
||||||
return line;
|
|
||||||
fail:
|
|
||||||
fprintf(stderr, "%s: %zu: invalid time range expression\n",
|
|
||||||
rd->filename, rd->lineno);
|
|
||||||
return NULL;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*****************************************************************************/
|
|
||||||
|
|
||||||
static int cron_exec(void *user, char *arg, rdline_t *rd, int flags)
|
|
||||||
{
|
|
||||||
crontab_t *cron = user;
|
|
||||||
exec_t *e, *end;
|
|
||||||
(void)flags;
|
|
||||||
|
|
||||||
e = calloc(1, sizeof(*e) + strlen(arg) + 1);
|
|
||||||
if (e == NULL) {
|
|
||||||
fprintf(stderr, "%s: %zu: out of memory\n",
|
|
||||||
rd->filename, rd->lineno);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
strcpy(e->args, arg);
|
|
||||||
|
|
||||||
e->argc = pack_argv(e->args);
|
|
||||||
if (e->argc < 0) {
|
|
||||||
fprintf(stderr, "%s: %zu: malformed string constant\n",
|
|
||||||
rd->filename, rd->lineno);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (cron->exec == NULL) {
|
|
||||||
cron->exec = e;
|
|
||||||
} else {
|
|
||||||
for (end = cron->exec; end->next != NULL; end = end->next)
|
|
||||||
;
|
|
||||||
end->next = e;
|
|
||||||
}
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int cron_hour(void *user, char *arg, rdline_t *rd, int flags)
|
|
||||||
{
|
|
||||||
crontab_t *cron = user;
|
|
||||||
uint64_t value;
|
|
||||||
(void)flags;
|
|
||||||
|
|
||||||
if (!readfield(arg, &value, 0, 23, NULL, rd))
|
|
||||||
return -1;
|
|
||||||
|
|
||||||
cron->hour = value;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int cron_minute(void *user, char *arg, rdline_t *rd, int flags)
|
|
||||||
{
|
|
||||||
crontab_t *cron = user;
|
|
||||||
uint64_t value;
|
|
||||||
(void)flags;
|
|
||||||
|
|
||||||
if (!readfield(arg, &value, 0, 59, NULL, rd))
|
|
||||||
return -1;
|
|
||||||
|
|
||||||
cron->minute = value;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int cron_dayofmonth(void *user, char *arg, rdline_t *rd, int flags)
|
|
||||||
{
|
|
||||||
crontab_t *cron = user;
|
|
||||||
uint64_t value;
|
|
||||||
(void)flags;
|
|
||||||
|
|
||||||
if (!readfield(arg, &value, 1, 31, NULL, rd))
|
|
||||||
return -1;
|
|
||||||
|
|
||||||
cron->dayofmonth = value;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int cron_dayofweek(void *user, char *arg, rdline_t *rd, int flags)
|
|
||||||
{
|
|
||||||
crontab_t *cron = user;
|
|
||||||
uint64_t value;
|
|
||||||
(void)flags;
|
|
||||||
|
|
||||||
if (!readfield(arg, &value, 0, 6, weekday, rd))
|
|
||||||
return -1;
|
|
||||||
|
|
||||||
cron->dayofweek = value;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int cron_month(void *user, char *arg, rdline_t *rd, int flags)
|
|
||||||
{
|
|
||||||
crontab_t *cron = user;
|
|
||||||
uint64_t value;
|
|
||||||
(void)flags;
|
|
||||||
|
|
||||||
if (!readfield(arg, &value, 1, 12, month, rd))
|
|
||||||
return -1;
|
|
||||||
|
|
||||||
cron->month = value;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int cron_interval(void *user, char *arg, rdline_t *rd, int flags)
|
|
||||||
{
|
|
||||||
crontab_t *cron = user;
|
|
||||||
size_t i;
|
|
||||||
(void)flags;
|
|
||||||
|
|
||||||
for (i = 0; i < ARRAY_SIZE(intervals); ++i) {
|
|
||||||
if (!strcmp(intervals[i].macro, arg)) {
|
|
||||||
cron->minute = intervals[i].tab.minute;
|
|
||||||
cron->hour = intervals[i].tab.hour;
|
|
||||||
cron->dayofmonth = intervals[i].tab.dayofmonth;
|
|
||||||
cron->month = intervals[i].tab.month;
|
|
||||||
cron->dayofweek = intervals[i].tab.dayofweek;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fprintf(stderr, "%s: %zu: unknown interval '%s'\n",
|
|
||||||
rd->filename, rd->lineno, arg);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int cron_user(void *user, char *arg, rdline_t *rd, int flags)
|
|
||||||
{
|
|
||||||
crontab_t *cron = user;
|
|
||||||
struct passwd *pwd;
|
|
||||||
bool isnumeric;
|
|
||||||
char *ptr;
|
|
||||||
int value;
|
|
||||||
(void)flags;
|
|
||||||
|
|
||||||
for (ptr = arg; isdigit(*ptr); ++ptr)
|
|
||||||
;
|
|
||||||
|
|
||||||
isnumeric = (*ptr == '\0');
|
|
||||||
pwd = getpwnam(arg);
|
|
||||||
|
|
||||||
if (pwd == NULL && !isnumeric) {
|
|
||||||
fprintf(stderr, "%s: %zu: unknown user '%s'\n",
|
|
||||||
rd->filename, rd->lineno, arg);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (pwd != NULL) {
|
|
||||||
cron->uid = pwd->pw_uid;
|
|
||||||
} else {
|
|
||||||
if (readnum(arg, &value, 0, INT_MAX, NULL, rd))
|
|
||||||
return -1;
|
|
||||||
cron->uid = value;
|
|
||||||
}
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int cron_group(void *user, char *arg, rdline_t *rd, int flags)
|
|
||||||
{
|
|
||||||
crontab_t *cron = user;
|
|
||||||
struct group *group;
|
|
||||||
bool isnumeric;
|
|
||||||
char *ptr;
|
|
||||||
int value;
|
|
||||||
(void)flags;
|
|
||||||
|
|
||||||
for (ptr = arg; isdigit(*ptr); ++ptr)
|
|
||||||
;
|
|
||||||
|
|
||||||
isnumeric = (*ptr == '\0');
|
|
||||||
group = getgrnam(arg);
|
|
||||||
|
|
||||||
if (group == NULL && !isnumeric) {
|
|
||||||
fprintf(stderr, "%s: %zu: unknown group '%s'\n",
|
|
||||||
rd->filename, rd->lineno, arg);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (group != NULL) {
|
|
||||||
cron->gid = group->gr_gid;
|
|
||||||
} else {
|
|
||||||
if (readnum(arg, &value, 0, INT_MAX, NULL, rd))
|
|
||||||
return -1;
|
|
||||||
cron->gid = value;
|
|
||||||
}
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int cron_tty(void *user, char *arg, rdline_t *rd, int flags)
|
|
||||||
{
|
|
||||||
crontab_t *cron = user;
|
|
||||||
(void)flags;
|
|
||||||
|
|
||||||
if (strncmp(arg, "truncate", 8) == 0 && isspace(arg[8])) {
|
|
||||||
cron->tty_truncate = 1;
|
|
||||||
arg += 8;
|
|
||||||
while (isspace(*arg))
|
|
||||||
++arg;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (try_unescape(arg, rd))
|
|
||||||
return -1;
|
|
||||||
|
|
||||||
cron->ctty = try_strdup(arg, rd);
|
|
||||||
return cron->ctty == NULL ? -1 : 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
static const cfg_param_t cron_params[] = {
|
|
||||||
{ "hour", 0, cron_hour },
|
|
||||||
{ "minute", 0, cron_minute },
|
|
||||||
{ "dayofmonth", 0, cron_dayofmonth },
|
|
||||||
{ "dayofweek", 0, cron_dayofweek },
|
|
||||||
{ "month", 0, cron_month },
|
|
||||||
{ "interval", 0, cron_interval },
|
|
||||||
{ "user", 0, cron_user },
|
|
||||||
{ "group", 0, cron_group },
|
|
||||||
{ "tty", 0, cron_tty },
|
|
||||||
{ "exec", 1, cron_exec },
|
|
||||||
};
|
|
||||||
|
|
||||||
crontab_t *rdcron(int dirfd, const char *filename)
|
|
||||||
{
|
|
||||||
crontab_t *cron = NULL;
|
|
||||||
rdline_t rd;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
if (rdline_init(&rd, dirfd, filename, 0, NULL))
|
|
||||||
return NULL;
|
|
||||||
|
|
||||||
cron = calloc(1, sizeof(*cron));
|
|
||||||
if (cron == NULL) {
|
|
||||||
fputs("out of memory\n", stderr);
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
|
|
||||||
cron->minute = 0xFFFFFFFFFFFFFFFFUL;
|
|
||||||
cron->hour = 0xFFFFFFFF;
|
|
||||||
cron->dayofmonth = 0xFFFFFFFF;
|
|
||||||
cron->month = 0xFFFF;
|
|
||||||
cron->dayofweek = 0xFF;
|
|
||||||
|
|
||||||
ret = rdcfg(cron, &rd, cron_params, ARRAY_SIZE(cron_params), 0);
|
|
||||||
if (ret) {
|
|
||||||
delcron(cron);
|
|
||||||
cron = NULL;
|
|
||||||
}
|
|
||||||
out:
|
|
||||||
rdline_cleanup(&rd);
|
|
||||||
return cron;
|
|
||||||
}
|
|
||||||
|
|
@ -1,86 +0,0 @@
|
||||||
/* SPDX-License-Identifier: GPL-3.0-or-later */
|
|
||||||
/*
|
|
||||||
* Copyright (C) 2018 - David Oberhollenzer
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
#include "gcrond.h"
|
|
||||||
|
|
||||||
int runjob(crontab_t *tab)
|
|
||||||
{
|
|
||||||
struct sigaction act;
|
|
||||||
pid_t pid;
|
|
||||||
exec_t *e;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
if (tab->exec == NULL)
|
|
||||||
return 0;
|
|
||||||
|
|
||||||
pid = fork();
|
|
||||||
if (pid == -1) {
|
|
||||||
perror("fork");
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (pid != 0)
|
|
||||||
return 0;
|
|
||||||
|
|
||||||
/* XXX: inside the child process */
|
|
||||||
memset(&act, 0, sizeof(act));
|
|
||||||
act.sa_handler = SIG_DFL;
|
|
||||||
sigaction(SIGINT, &act, NULL);
|
|
||||||
sigaction(SIGTERM, &act, NULL);
|
|
||||||
sigaction(SIGHUP, &act, NULL);
|
|
||||||
sigaction(SIGCHLD, &act, NULL);
|
|
||||||
|
|
||||||
if (setup_tty(tab->ctty, tab->tty_truncate))
|
|
||||||
exit(EXIT_FAILURE);
|
|
||||||
|
|
||||||
if (tab->gid != 0) {
|
|
||||||
if (setresgid(tab->gid, tab->gid, tab->gid)) {
|
|
||||||
perror("setgid");
|
|
||||||
exit(EXIT_FAILURE);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
if (tab->uid != 0) {
|
|
||||||
if (setresuid(tab->uid, tab->uid, tab->uid)) {
|
|
||||||
perror("setuid");
|
|
||||||
exit(EXIT_FAILURE);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
if (tab->exec->next == NULL)
|
|
||||||
argv_exec(tab->exec);
|
|
||||||
|
|
||||||
for (e = tab->exec; e != NULL; e = e->next) {
|
|
||||||
pid = fork();
|
|
||||||
if (pid == -1) {
|
|
||||||
perror("fork");
|
|
||||||
exit(EXIT_FAILURE);
|
|
||||||
}
|
|
||||||
|
|
||||||
if (pid == 0)
|
|
||||||
argv_exec(e);
|
|
||||||
|
|
||||||
while (waitpid(pid, &ret, 0) != pid)
|
|
||||||
;
|
|
||||||
|
|
||||||
ret = WIFEXITED(ret) ? WEXITSTATUS(ret) : EXIT_FAILURE;
|
|
||||||
if (ret != EXIT_SUCCESS)
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
exit(ret);
|
|
||||||
}
|
|
||||||
|
|
@ -13,10 +13,6 @@ Currently available service commands are:
|
||||||
* disable - disable a service. If the service is parameterized, requires the
|
* disable - disable a service. If the service is parameterized, requires the
|
||||||
same arguments used for enabling, to disable the specific instance of the
|
same arguments used for enabling, to disable the specific instance of the
|
||||||
service.
|
service.
|
||||||
* schedule - enable a gcrond service. Only available if this package is built
|
|
||||||
with gcrond.
|
|
||||||
* unschedule - disnable a gcrond service. Only available if this package is
|
|
||||||
built with gcrond.
|
|
||||||
* dumpscript - generate an equivalent shell script from the `exec` lines of
|
* dumpscript - generate an equivalent shell script from the `exec` lines of
|
||||||
a service after applying all parameter substitutions.
|
a service after applying all parameter substitutions.
|
||||||
* list - list all enabled service. A target can be specified to only list
|
* list - list all enabled service. A target can be specified to only list
|
||||||
|
|
|
||||||
|
|
@ -1,62 +0,0 @@
|
||||||
# Gcron
|
|
||||||
|
|
||||||
Gcron is a small daemon that executes batch commands once a certain
|
|
||||||
condition is met.
|
|
||||||
|
|
||||||
In a typical installation, it reads configuration files from `/etc/gcron.d`.
|
|
||||||
If used together with the init system in this package, the `service` command
|
|
||||||
can be used to administer symlinks in that directory, pointing
|
|
||||||
to `/usr/share/init/<name>.gcron`.
|
|
||||||
|
|
||||||
Each file in the configuration directory represents a single scheduled batch
|
|
||||||
job. The syntax and most of the keywords are similar to `initd` service files
|
|
||||||
(See [services.md](services.md)).
|
|
||||||
|
|
||||||
## Cron Style Patterns
|
|
||||||
|
|
||||||
The following keywords can be used to specify classic cron style patterns for
|
|
||||||
when a job should be run:
|
|
||||||
|
|
||||||
* `hour`
|
|
||||||
* `minute`
|
|
||||||
* `dayofmonth`
|
|
||||||
* `dayofweek`
|
|
||||||
* `month`
|
|
||||||
|
|
||||||
For each of those keywords, a comma separated sequence of times can be
|
|
||||||
specified. Time ranges can be specified using the syntax `<start>-<end>`,
|
|
||||||
or using `*` for every possible value. A sequence (either range or star)
|
|
||||||
can be suffixed with `/<step>` to specify an increment.
|
|
||||||
For instance, `minute */5` means every five minutes and `minute 15-30/2`
|
|
||||||
means every two minutes between quarter past and half past.
|
|
||||||
|
|
||||||
In addition to numeric values, the keywords `dayofweek` and `month` allow
|
|
||||||
specifying 3 letter, uppercase week day and moth names such as `MON`, `TUE`,
|
|
||||||
etc and `JAN`, `FEB`, ...
|
|
||||||
|
|
||||||
The job is only run when all specified conditions are met. Omitting a field
|
|
||||||
is the same as specifying `*`.
|
|
||||||
|
|
||||||
## Named Intervals
|
|
||||||
|
|
||||||
Alternatively to the above, the keyword `interval` can be used. The following
|
|
||||||
intervals can be specified:
|
|
||||||
|
|
||||||
* `yearly` or `annually` means on every January the first at midnight.
|
|
||||||
* `monthly` means on every first of the month at midnight.
|
|
||||||
* `weekly` means every Sunday at midnight.
|
|
||||||
* `daily` means every day at midnight.
|
|
||||||
* `hourly` means every first minute of the hour.
|
|
||||||
|
|
||||||
## Command Specification
|
|
||||||
|
|
||||||
To specify *what* should be done once the condition is met, the following
|
|
||||||
keywords can be used:
|
|
||||||
|
|
||||||
* `exec` - the command to run. Multiple commands can be grouped
|
|
||||||
using curly braces.
|
|
||||||
* `user` - a user name or ID to set before running the commands.
|
|
||||||
* `group` - a group name or ID to set before running the commands.
|
|
||||||
* `tty` - similar to init service files, the controlling tty or output file
|
|
||||||
for the batch commands. Like init service files, the `truncate` keyword
|
|
||||||
can be used.
|
|
||||||
Loading…
Reference in a new issue