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Diffstat (limited to 'usr/src/cmd/cron/cron.c')
-rw-r--r--usr/src/cmd/cron/cron.c142
1 files changed, 114 insertions, 28 deletions
diff --git a/usr/src/cmd/cron/cron.c b/usr/src/cmd/cron/cron.c
index 54d3c9d971..8c5c54fb64 100644
--- a/usr/src/cmd/cron/cron.c
+++ b/usr/src/cmd/cron/cron.c
@@ -23,6 +23,7 @@
* Use is subject to license terms.
*
* Copyright 2013 Joshua M. Clulow <josh@sysmgr.org>
+ * Copyright 2012 Joyent, Inc. All rights reserved.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
@@ -313,7 +314,8 @@ static int ex(struct event *e);
static void read_dirs(int);
static void mail(char *, char *, int);
static char *next_field(int, int);
-static void readcron(struct usr *, time_t);
+static void readcron(char *, struct usr *, time_t);
+static void readcronfile(FILE *, struct usr *, time_t);
static int next_ge(int, char *);
static void free_if_unused(struct usr *);
static void del_atjob(char *, char *);
@@ -418,7 +420,7 @@ extern void el_delete(void);
static int valid_entry(char *, int);
static struct usr *create_ulist(char *, int);
-static void init_cronevent(char *, int);
+static void init_cronevent(char *, char *, int);
static void init_atevent(char *, time_t, int, int);
static void update_atevent(struct usr *, char *, time_t, int);
@@ -757,6 +759,18 @@ read_dirs(int first)
time_t tim;
+ if (chdir(SYSCRONDIR) != -1) {
+ cwd = CRON;
+ if ((dir = opendir(".")) != NULL) {
+ while ((dp = readdir(dir)) != NULL) {
+ if (!valid_entry(dp->d_name, CRONEVENT))
+ continue;
+ init_cronevent(SYSCRONDIR, dp->d_name, first);
+ }
+ (void) closedir(dir);
+ }
+ }
+
if (chdir(CRONDIR) == -1)
crabort(BADCD, REMOVE_FIFO|CONSOLE_MSG);
cwd = CRON;
@@ -765,7 +779,7 @@ read_dirs(int first)
while ((dp = readdir(dir)) != NULL) {
if (!valid_entry(dp->d_name, CRONEVENT))
continue;
- init_cronevent(dp->d_name, first);
+ init_cronevent(CRONDIR, dp->d_name, !first);
}
(void) closedir(dir);
@@ -851,22 +865,22 @@ create_ulist(char *name, int type)
}
void
-init_cronevent(char *name, int first)
+init_cronevent(char *basedir, char *name, int first)
{
struct usr *u;
if (first) {
u = create_ulist(name, CRONEVENT);
- readcron(u, 0);
+ readcron(basedir, u, 0);
} else {
if ((u = find_usr(name)) == NULL) {
u = create_ulist(name, CRONEVENT);
- readcron(u, 0);
+ readcron(basedir, u, 0);
} else {
u->ctexists = TRUE;
rm_ctevents(u);
el_remove(u->ctid, 0);
- readcron(u, 0);
+ readcron(basedir, u, 0);
}
}
}
@@ -948,7 +962,7 @@ mod_ctab(char *name, time_t reftime)
(void) strcpy(u->home, pw->pw_dir);
u->uid = pw->pw_uid;
u->gid = pw->pw_gid;
- readcron(u, reftime);
+ readcron(CRONDIR, u, reftime);
} else {
u->uid = pw->pw_uid;
u->gid = pw->pw_gid;
@@ -971,7 +985,7 @@ mod_ctab(char *name, time_t reftime)
/* user didnt have a crontab last time */
u->ctid = ecid++;
u->ctevents = NULL;
- readcron(u, reftime);
+ readcron(CRONDIR, u, reftime);
return;
}
#ifdef DEBUG
@@ -979,7 +993,7 @@ mod_ctab(char *name, time_t reftime)
#endif
rm_ctevents(u);
el_remove(u->ctid, 0);
- readcron(u, reftime);
+ readcron(CRONDIR, u, reftime);
}
}
@@ -1114,8 +1128,94 @@ update_atevent(struct usr *u, char *name, time_t tim, int jobtype)
static char line[CTLINESIZE]; /* holds a line from a crontab file */
static int cursor; /* cursor for the above line */
+static int
+copyfile(char *name, FILE *dp)
+{
+ FILE *tf;
+
+ if ((tf = fopen(name, "r")) == NULL) {
+ (void) fclose(dp);
+ return (1);
+ }
+
+ while (fgets(line, CTLINESIZE, tf) != NULL) {
+ if (fputs(line, dp) == EOF) {
+ (void) fclose(tf);
+ (void) fclose(dp);
+ return (1);
+ }
+ }
+ (void) fclose(tf);
+
+ return (0);
+}
+
static void
-readcron(struct usr *u, time_t reftime)
+readcron(char *basedir, struct usr *u, time_t reftime)
+{
+ char *altpath;
+ struct stat sb;
+ FILE *cf; /* cf will be a user's crontab file */
+ char altnamebuf[PATH_MAX];
+ char namebuf[PATH_MAX];
+
+ if (strcmp(basedir, SYSCRONDIR) == 0)
+ altpath = CRONDIR;
+ else
+ altpath = SYSCRONDIR;
+
+ if (snprintf(altnamebuf, sizeof (altnamebuf), "%s/%s", altpath,
+ u->name) >= sizeof (altnamebuf))
+ return;
+
+ if (snprintf(namebuf, sizeof (namebuf), "%s/%s", basedir, u->name) >=
+ sizeof (namebuf))
+ return;
+
+ if (stat(altnamebuf, &sb) != -1) {
+ /*
+ * There is a secondary crontab for this user. We need to
+ * merge the two crontabs into a temporary file for loading.
+ */
+ int fd;
+ char tmpfile[PATH_MAX];
+
+ (void) strlcpy(tmpfile, "/tmp/cronXXXXXX", sizeof (tmpfile));
+ if ((fd = mkstemp(tmpfile)) == -1)
+ return;
+
+ unlink(tmpfile);
+ if ((cf = fdopen(fd, "w+")) == NULL) {
+ close(fd);
+ return;
+ }
+
+ if (copyfile(namebuf, cf) != 0)
+ return;
+
+ if (copyfile(altnamebuf, cf) != 0)
+ return;
+
+ (void) fflush(cf);
+ rewind(cf);
+
+ } else {
+ /*
+ * Only one crontab, open it directly.
+ */
+ if ((cf = fopen(namebuf, "r")) == NULL) {
+ mail(u->name, NOREAD, ERR_UNIXERR);
+ return;
+ }
+ }
+
+ readcronfile(cf, u, reftime);
+
+ (void) fclose(cf);
+}
+
+static void
+readcronfile(FILE *cf, struct usr *u, time_t reftime)
{
/*
* readcron reads in a crontab file for a user (u). The list of
@@ -1123,12 +1223,9 @@ readcron(struct usr *u, time_t reftime)
* this list. Each event is also entered into the main event
* list.
*/
- FILE *cf; /* cf will be a user's crontab file */
struct event *e;
int start;
unsigned int i;
- char namebuf[PATH_MAX];
- char *pname;
struct shared *tz = NULL;
struct shared *home = NULL;
struct shared *shell = NULL;
@@ -1136,19 +1233,6 @@ readcron(struct usr *u, time_t reftime)
/* read the crontab file */
cte_init(); /* Init error handling */
- if (cwd != CRON) {
- if (snprintf(namebuf, sizeof (namebuf), "%s/%s",
- CRONDIR, u->name) >= sizeof (namebuf)) {
- return;
- }
- pname = namebuf;
- } else {
- pname = u->name;
- }
- if ((cf = fopen(pname, "r")) == NULL) {
- mail(u->name, NOREAD, ERR_UNIXERR);
- return;
- }
while (fgets(line, CTLINESIZE, cf) != NULL) {
char *tmp;
/* process a line of a crontab file */
@@ -1277,7 +1361,6 @@ again:
#endif
}
cte_sendmail(u->name); /* mail errors if any to user */
- (void) fclose(cf);
rel_shared(tz);
rel_shared(shell);
rel_shared(home);
@@ -2440,6 +2523,9 @@ ex(struct event *e)
} else {
r = audit_cron_session(e->u->name, CRONDIR,
e->u->uid, e->u->gid, NULL);
+ if (r != 0)
+ r = audit_cron_session(e->u->name, SYSCRONDIR,
+ e->u->uid, e->u->gid, NULL);
}
if (r != 0) {
msg("cron audit problem. job failed (%s) for user %s",
generated by cgit v1.2.3 (git 2.46.0) at 2025-10-15 02:12:11 +0000