aboutsummaryrefslogtreecommitdiff
path: root/lib
diff options
context:
space:
mode:
Diffstat (limited to 'lib')
-rw-r--r--lib/Makemodule.am9
-rw-r--r--lib/cron/cronscan.c77
-rw-r--r--lib/cron/crontab.c50
-rw-r--r--lib/cron/delcron.c38
-rw-r--r--lib/cron/rdcron.c503
-rw-r--r--lib/include/crontab.h55
6 files changed, 2 insertions, 730 deletions
diff --git a/lib/Makemodule.am b/lib/Makemodule.am
index 11a96e5..5ce7239 100644
--- a/lib/Makemodule.am
+++ b/lib/Makemodule.am
@@ -17,11 +17,6 @@ libcfg_a_SOURCES += lib/libcfg/pack_argv.c lib/include/libcfg.h
libcfg_a_CPPFLAGS = $(AM_CPPFLAGS)
libcfg_a_CFLAGS = $(AM_CFLAGS)
-libcron_a_SOURCES = lib/cron/rdcron.c lib/cron/delcron.c lib/cron/crontab.c
-libcron_a_SOURCES += lib/cron/cronscan.c lib/include/crontab.h
-libcron_a_CPPFLAGS = $(AM_CPPFLAGS)
-libcron_a_CFLAGS = $(AM_CFLAGS)
+EXTRA_DIST += $(HEADRS) lib/include/libcfg.h
-EXTRA_DIST += $(HEADRS) lib/include/libcfg.h lib/include/crontab.h
-
-noinst_LIBRARIES += libinit.a libcfg.a libcron.a libutil.a
+noinst_LIBRARIES += libinit.a libcfg.a libutil.a
diff --git a/lib/cron/cronscan.c b/lib/cron/cronscan.c
deleted file mode 100644
index e28fb03..0000000
--- a/lib/cron/cronscan.c
+++ /dev/null
@@ -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>
-#include <stddef.h>
-#include <dirent.h>
-#include <string.h>
-#include <errno.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <ctype.h>
-
-#include "crontab.h"
-
-int cronscan(const char *directory, crontab_t **list)
-{
- struct dirent *ent;
- int dfd, ret = 0;
- crontab_t *cron;
- DIR *dir;
-
- dir = opendir(directory);
- if (dir == NULL) {
- perror(directory);
- return -1;
- }
-
- dfd = dirfd(dir);
- if (dfd < 0) {
- perror(directory);
- closedir(dir);
- return -1;
- }
-
- for (;;) {
- errno = 0;
- ent = readdir(dir);
-
- if (ent == NULL) {
- if (errno != 0) {
- perror(directory);
- ret = -1;
- }
- break;
- }
-
- if (!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, ".."))
- continue;
-
- cron = rdcron(dfd, ent->d_name);
- if (cron == NULL) {
- ret = -1;
- continue;
- }
-
- cron->next = *list;
- *list = cron;
- }
-
- closedir(dir);
- return ret;
-}
diff --git a/lib/cron/crontab.c b/lib/cron/crontab.c
deleted file mode 100644
index f761ec0..0000000
--- a/lib/cron/crontab.c
+++ /dev/null
@@ -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;
-}
diff --git a/lib/cron/delcron.c b/lib/cron/delcron.c
deleted file mode 100644
index 1877db1..0000000
--- a/lib/cron/delcron.c
+++ /dev/null
@@ -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);
-}
diff --git a/lib/cron/rdcron.c b/lib/cron/rdcron.c
deleted file mode 100644
index 8781a6f..0000000
--- a/lib/cron/rdcron.c
+++ /dev/null
@@ -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;
-}
diff --git a/lib/include/crontab.h b/lib/include/crontab.h
deleted file mode 100644
index 1ea3883..0000000
--- a/lib/include/crontab.h
+++ /dev/null
@@ -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 */