As we talked in debian.users.russian about that problem best workaround (in our
opinion) is add -i (inform) key to crontab. It's let backward compatibility to
all users scripts that must be silent and give way for user make alias to
crontab -r -i instead crontab -r in shell.
P.S. Patch is kindly gave by Dmitry E. Oboukhov
=begin of remove_crontab_warning_patch.diff
--- crontab.c 2007-03-12 11:35:54.000000000 +0300
+++ crontab.c.new 2007-03-12 11:52:10.000000000 +0300
@@ -15,6 +15,13 @@
* Paul Vixie <[EMAIL PROTECTED]> uunet!decwrl!vixie!paul
*/
+/*
+ * Modified by Dmitry E. Oboukhov <[EMAIL PROTECTED]>
+ * [+] added the request of deleting crontab
+ * [+] added option '-i'
+ *
+ */
+
#if !defined(lint) && !defined(LINT)
static char rcsid[] = "$Id: crontab.c,v 2.13 1994/01/17 03:20:37 vixie Exp $";
#endif
@@ -54,6 +61,7 @@
#endif
+static int warning_remove=0;
static PID_T Pid;
static char *User, *RealUser;
static char Filename[MAX_FNAME];
@@ -86,6 +94,7 @@
fprintf(stderr, "\t-e\t(edit user's crontab)\n");
fprintf(stderr, "\t-l\t(list user's crontab)\n");
fprintf(stderr, "\t-r\t(delete user's crontab)\n");
+ fprintf(stderr, "\t-i\t(warning for remove crontab)\n");
exit(ERROR_EXIT);
}
@@ -140,9 +149,9 @@
}
#if DEBUGGING
-char *getoptarg = "u:lerx:";
+char *getoptarg = "u:lerx:i";
#else
-char *getoptarg = "u:ler";
+char *getoptarg = "u:leri";
#endif
@@ -177,6 +186,10 @@
usage("unrecognized option");
break;
#endif
+ case 'i':
+ warning_remove=1;
+ break;
+
case 'u':
if (!(pw = getpwnam(optarg)))
{
@@ -336,7 +349,22 @@
delete_cmd() {
char n[MAX_FNAME];
- log_it(RealUser, Pid, "DELETE", User);
+ if (warning_remove)
+ {
+ fprintf(stderr, "Are You sure that You want to delete crontab? [Y/N]: ");
+ int ch=getchar();
+ if (ch==EOF)
+ {
+ fprintf(stderr, "Error getchar: EOF\n");
+ exit(ERROR_EXIT);
+ }
+ if (ch!='Y' && ch!='y')
+ {
+ exit(OK_EXIT);
+ }
+ }
+
+ log_it(RealUser, Pid, "DELETE", User);
(void) snprintf(n, MAX_FNAME, CRON_TAB(User));
if (unlink(n)) {
if (errno == ENOENT)
=end of remove_crontab_warning_patch.diff
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