Il 13/02/2009 00:14, Corey Hickey ha scritto:
> [...]
> It appears that slmodemd isn't creating /var/lib/slmodem/data.modem:1
> even though it should have permissions to create files in the directory
> (isn't it still running as root at that point, anyway?). Actually, now
> that I check the source, that makes sense:
>
> modem/modem_datafile.c:70, function datafile_load_info()
> ----------------------------------------------------------------------
> int fd;
>
> DBG("open file: %s...\n",file_name);
> fd = open(file_name, 0, 0);
> if(fd < 0) {
> DBG("cannot open '%s': %s\n",
> file_name,strerror(errno));
> return -errno;
> }
> ----------------------------------------------------------------------
>
> There aren't any flags on the open() system call; O_CREAT would be
> needed.
The data file is actually created on the first write:
modem/modem_datafile.c:110, function datafile_save_info()
----------------------------------------------------------------------
int fd;
fd = open(file_name,O_CREAT|O_WRONLY,(S_IRUSR|S_IWUSR));
if(fd < 0)
return -errno;
[...]
----------------------------------------------------------------------
During my quick tests the file has been created the second time I tried
to start slmodemd; notice that the first datafile_load_info() happens
before dropping privileges: if the file is created at that time it will
be root:root.
> [...]
Il 13/02/2009 01:11, Corey Hickey ha scritto:
> [...]
> In case it's of any use, I'm attaching a couple log files:
>
> slmodemd_2.6.26-1-686.log
> slmodemd_2.6.26-1-686_no-drop-privs.log
I couldn't get your logs, please send them again.
Anyway, I made some tests and - since now - I couldn't reproduce this
issue, at least with current 2.6.26-1 Lenny kernel.
Maurizio
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