chiark / gitweb /
path_id: fix fibre channel handling
[elogind.git] / extras / ata_id / ata_id.c
index 59e2b3987b376b6dc58aed5144c0b32d345c393b..dae464a4dc8121cb323168f6338f8ef8fc47282f 100644 (file)
@@ -1,21 +1,20 @@
 /*
  * ata_id - reads product/serial number from ATA drives
  *
- * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
+ * Copyright (C) 2005-2008 Kay Sievers <kay.sievers@vrfy.org>
  *
- *     This library is free software; you can redistribute it and/or
- *     modify it under the terms of the GNU Lesser General Public
- *     License as published by the Free Software Foundation; either
- *     version 2.1 of the License, or (at your option) any later version.
+ * 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 2 of the License, or
+ * (at your option) any later version.
  *
- *     This library 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
- *     Lesser General Public License for more details.
+ * 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 Lesser General Public
- *     License along with this library; if not, write to the Free Software
- *     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #ifndef _GNU_SOURCE
 #include <unistd.h>
 #include <fcntl.h>
 #include <ctype.h>
+#include <string.h>
 #include <errno.h>
+#include <getopt.h>
 #include <sys/ioctl.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <linux/types.h>
 #include <linux/hdreg.h>
 
-#include "../../logging.h"
-#include "../../udev_utils.h"
+#include "../../udev/udev.h"
 
-#ifdef USE_LOG
-void log_message(int priority, const char *format, ...)
+static void log_fn(struct udev *udev, int priority,
+                  const char *file, int line, const char *fn,
+                  const char *format, va_list args)
 {
-       va_list args;
-       static int udev_log = -1;
-
-       if (udev_log == -1) {
-               const char *value;
-
-               value = getenv("UDEV_LOG");
-               if (value)
-                       udev_log = log_priority(value);
-               else
-                       udev_log = LOG_ERR;
-       }
-
-       if (priority > udev_log)
-               return;
-
-       va_start(args, format);
        vsyslog(priority, format, args);
-       va_end(args);
-}
-#endif
-
-static void set_str(char *to, const unsigned char *from, int count)
-{
-       int i, j;
-       int len;
-
-       len = strnlen(from, count);
-       while (isspace(from[len-1]))
-               len--;
-
-       i = 0;
-       while (isspace(from[i]) && (i < len))
-               i++;
-
-       j = 0;
-       while (i < len) {
-               switch(from[i]) {
-               case '/':
-               case ' ':
-                       to[j++] = '_';
-                       break;
-               default:
-                       to[j++] = from[i];
-               }
-               i++;
-       }
-       to[j] = '\0';
 }
 
 int main(int argc, char *argv[])
 {
+       struct udev *udev;
        struct hd_driveid id;
        char model[41];
        char serial[21];
        char revision[9];
        const char *node = NULL;
-       int i;
        int export = 0;
        int fd;
        int rc = 0;
+       static const struct option options[] = {
+               { "export", no_argument, NULL, 'x' },
+               { "help", no_argument, NULL, 'h' },
+               {}
+       };
+
+       udev = udev_new();
+       if (udev == NULL)
+               goto exit;
 
-       for (i = 1 ; i < argc; i++) {
-               char *arg = argv[i];
+       logging_init("ata_id");
+       udev_set_log_fn(udev, log_fn);
 
-               if (strcmp(arg, "--export") == 0) {
+       while (1) {
+               int option;
+
+               option = getopt_long(argc, argv, "xh", options, NULL);
+               if (option == -1)
+                       break;
+
+               switch (option) {
+               case 'x':
                        export = 1;
-               } else
-                       node = arg;
+                       break;
+               case 'h':
+                       printf("Usage: ata_id [--export] [--help] <device>\n"
+                              "  --export    print values as environemt keys\n"
+                              "  --help      print this help text\n\n");
+               default:
+                       rc = 1;
+                       goto exit;
+               }
        }
-       if (!node) {
-               err("no node specified");
+
+       node = argv[optind];
+       if (node == NULL) {
+               err(udev, "no node specified\n");
                rc = 1;
                goto exit;
        }
 
-       fd = open(node, O_RDONLY);
-       if (fd < 0)
-               if (errno == ENOMEDIUM)
-                       fd = open(node, O_RDONLY|O_NONBLOCK);
+       fd = open(node, O_RDONLY|O_NONBLOCK);
        if (fd < 0) {
-               err("unable to open '%s'", node);
+               err(udev, "unable to open '%s'\n", node);
                rc = 1;
                goto exit;
        }
 
        if (ioctl(fd, HDIO_GET_IDENTITY, &id)) {
-               err("HDIO_GET_IDENTITY failed for '%s'", node);
-               rc = 3;
+               if (errno == ENOTTY) {
+                       info(udev, "HDIO_GET_IDENTITY unsupported for '%s'\n", node);
+                       rc = 2;
+               } else {
+                       err(udev, "HDIO_GET_IDENTITY failed for '%s'\n", node);
+                       rc = 3;
+               }
                goto close;
        }
 
-       set_str(model, id.model, 40);
-       set_str(serial, id.serial_no, 20);
-       set_str(revision, id.fw_rev, 8);
+       udev_util_replace_whitespace((char *) id.model, model, 40);
+       udev_util_replace_chars(model, NULL);
+       udev_util_replace_whitespace((char *) id.serial_no, serial, 20);
+       udev_util_replace_chars(serial, NULL);
+       udev_util_replace_whitespace((char *) id.fw_rev, revision, 8);
+       udev_util_replace_chars(revision, NULL);
 
        if (export) {
+               if ((id.config >> 8) & 0x80) {
+                       /* This is an ATAPI device */
+                       switch ((id.config >> 8) & 0x1f) {
+                       case 0:
+                               printf("ID_TYPE=cd\n");
+                               break;
+                       case 1:
+                               printf("ID_TYPE=tape\n");
+                               break;
+                       case 5:
+                               printf("ID_TYPE=cd\n");
+                               break;
+                       case 7:
+                               printf("ID_TYPE=optical\n");
+                               break;
+                       default:
+                               printf("ID_TYPE=generic\n");
+                               break;
+                       }
+               } else {
+                       printf("ID_TYPE=disk\n");
+               }
                printf("ID_MODEL=%s\n", model);
                printf("ID_SERIAL=%s\n", serial);
                printf("ID_REVISION=%s\n", revision);
-       } else
-               printf("%s_%s\n", model, serial);
+               printf("ID_BUS=ata\n");
+       } else {
+               if (serial[0] != '\0')
+                       printf("%s_%s\n", model, serial);
+               else
+                       printf("%s\n", model);
+       }
 
 close:
        close(fd);
 exit:
+       udev_unref(udev);
        logging_close();
        return rc;
 }