/*
- * "$Id: cups-deviced.c 7816 2008-07-30 20:53:31Z mike $"
+ * Device scanning mini-daemon for CUPS.
*
- * Device scanning mini-daemon for the Common UNIX Printing System (CUPS).
+ * Copyright 2007-2014 by Apple Inc.
+ * Copyright 1997-2006 by Easy Software Products.
*
- * Copyright 2007-2008 by Apple Inc.
- * Copyright 1997-2006 by Easy Software Products.
- *
- * These coded instructions, statements, and computer programs are the
- * property of Apple Inc. and are protected by Federal copyright
- * law. Distribution and use rights are outlined in the file "LICENSE.txt"
- * which should have been included with this file. If this file is
- * file is missing or damaged, see the license at "http://www.cups.org/".
- *
- * Contents:
- *
- * main() - Scan for devices and return an IPP response.
- * add_device() - Add a new device to the list.
- * compare_devices() - Compare device names to eliminate duplicates.
- * create_strings_array() - Create a CUPS array of strings.
- * get_current_time() - Get the current time as a double value in seconds.
- * get_device() - Get a device from a backend.
- * process_children() - Process all dead children...
- * sigchld_handler() - Handle 'child' signals from old processes.
- * start_backend() - Run a backend to gather the available devices.
+ * These coded instructions, statements, and computer programs are the
+ * property of Apple Inc. and are protected by Federal copyright
+ * law. Distribution and use rights are outlined in the file "LICENSE.txt"
+ * which should have been included with this file. If this file is
+ * missing or damaged, see the license at "http://www.cups.org/".
*/
/*
static struct pollfd backend_fds[MAX_BACKENDS];
/* Array for poll() */
static cups_array_t *devices; /* Array of devices */
-static int normal_user; /* Normal user ID */
+static uid_t normal_user; /* Normal user ID */
static int device_limit; /* Maximum number of devices */
static int send_class, /* Send device-class attribute? */
send_info, /* Send device-info attribute? */
const char *device_location);
static int compare_devices(cupsd_device_t *p0,
cupsd_device_t *p1);
-static cups_array_t *create_strings_array(const char *s);
static double get_current_time(void);
static int get_device(cupsd_backend_t *backend);
static void process_children(void);
int num_options; /* Number of options */
cups_option_t *options; /* Options */
cups_array_t *requested, /* requested-attributes values */
- *exclude; /* exclude-schemes values */
+ *exclude, /* exclude-schemes values */
+ *include; /* include-schemes values */
#if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
struct sigaction action; /* Actions for POSIX signals */
#endif /* HAVE_SIGACTION && !HAVE_SIGSET */
return (1);
}
- normal_user = atoi(argv[4]);
+ normal_user = (uid_t)atoi(argv[4]);
if (normal_user <= 0)
{
fprintf(stderr, "ERROR: [cups-deviced] Bad user %d!\n", normal_user);
}
num_options = cupsParseOptions(argv[5], 0, &options);
- requested = create_strings_array(cupsGetOption("requested-attributes",
- num_options, options));
- exclude = create_strings_array(cupsGetOption("exclude-schemes",
- num_options, options));
+ requested = cupsdCreateStringsArray(cupsGetOption("requested-attributes",
+ num_options, options));
+ exclude = cupsdCreateStringsArray(cupsGetOption("exclude-schemes",
+ num_options, options));
+ include = cupsdCreateStringsArray(cupsGetOption("include-schemes",
+ num_options, options));
if (!requested || cupsArrayFind(requested, "all") != NULL)
{
(dent->fileinfo.st_mode & (S_IRUSR | S_IXUSR)) != (S_IRUSR | S_IXUSR))
continue;
- if (cupsArrayFind(exclude, dent->filename))
+ /*
+ * Skip excluded or not included backends...
+ */
+
+ if (cupsArrayFind(exclude, dent->filename) ||
+ (include && !cupsArrayFind(include, dent->filename)))
continue;
/*
* all others run as the unprivileged user...
*/
- start_backend(dent->filename,
- !(dent->fileinfo.st_mode & (S_IRWXG | S_IRWXO)));
+ start_backend(dent->filename, !(dent->fileinfo.st_mode & (S_IWGRP | S_IRWXO)));
}
cupsDirClose(dir);
timeout = (int)(1000 * (end_time - current_time));
- if (poll(backend_fds, num_backends, timeout) > 0)
+ if (poll(backend_fds, (nfds_t)num_backends, timeout) > 0)
{
for (i = 0; i < num_backends; i ++)
if (backend_fds[i].revents && backends[i].pipe)
- if (get_device(backends + i))
+ {
+ cups_file_t *bpipe = backends[i].pipe;
+ /* Copy of pipe for backend... */
+
+ do
{
- backend_fds[i].fd = 0;
- backend_fds[i].events = 0;
+ if (get_device(backends + i))
+ {
+ backend_fds[i].fd = 0;
+ backend_fds[i].events = 0;
+ break;
+ }
}
+ while (bpipe->ptr && memchr(bpipe->ptr, '\n', (size_t)(bpipe->end - bpipe->ptr)));
+ }
}
/*
if ((diff = cupsdCompareNames(d0->device_info, d1->device_info)) != 0)
return (diff);
- else if ((diff = strcasecmp(d0->device_class, d1->device_class)) != 0)
+ else if ((diff = _cups_strcasecmp(d0->device_class, d1->device_class)) != 0)
return (diff);
else
- return (strcasecmp(d0->device_uri, d1->device_uri));
-}
-
-
-/*
- * 'create_strings_array()' - Create a CUPS array of strings.
- */
-
-static cups_array_t * /* O - CUPS array */
-create_strings_array(const char *s) /* I - Comma-delimited strings */
-{
- cups_array_t *a; /* CUPS array */
- const char *start, /* Start of string */
- *end; /* End of string */
- char *ptr; /* New string */
-
-
- if (!s)
- return (NULL);
-
- if ((a = cupsArrayNew((cups_array_func_t)strcmp, NULL)) != NULL)
- {
- for (start = end = s; *end; start = end + 1)
- {
- /*
- * Find the end of the current delimited string...
- */
-
- if ((end = strchr(start, ',')) == NULL)
- end = start + strlen(start);
-
- /*
- * Duplicate the string and add it to the array...
- */
-
- if ((ptr = calloc(1, end - start + 1)) == NULL)
- break;
-
- memcpy(ptr, start, end - start);
- cupsArrayAdd(a, ptr);
- }
- }
-
- return (a);
+ return (_cups_strcasecmp(d0->device_uri, d1->device_uri));
}
snprintf(program, sizeof(program), "%s/backend/%s", server_bin, name);
+ if (_cupsFileCheck(program, _CUPS_FILE_CHECK_PROGRAM, !geteuid(),
+ _cupsFileCheckFilter, NULL))
+ return (-1);
+
backend = backends + num_backends;
argv[0] = (char *)name;
return (0);
}
-
-
-/*
- * End of "$Id: cups-deviced.c 7816 2008-07-30 20:53:31Z mike $".
- */
projects / thirdparty / cups.git / blobdiff