case '/':
case ' ':
to[j++] = '_';
+ break;
default:
to[j++] = from[i];
}
-# Makefile for udev_volume_id
+# Makefile for volume_id
#
-# Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
+# Copyright (C) 2004, 2005 Kay Sievers <kay.sievers@vrfy.org>
#
# 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; version 2 of the License.
#
-PROG = udev_volume_id
+PROG = vol_id
all: $(PROG)
VOLUME_ID_BASE=volume_id
include $(VOLUME_ID_BASE)/Makefile.inc
-OBJS = udev_volume_id.o $(VOLUME_ID_OBJS) ../../udev.a
+OBJS = vol_id.o $(VOLUME_ID_OBJS) ../../udev.a
HEADERS = $(VOLUME_ID_HEADERS)
$(OBJS): $(HEADERS)
-
-udev_volume_id - partition, filesystem, disklabel reader
+vol_id - partition, filesystem, disklabel reader
This program is normally called from a udev rule, to provide udev with the
name, uuid or the filesystem type of a partition to name a device node.
-udev_volume_id opens the blockdevice node specified at the commandline.
-The following commandline switches are supported to specify what udev_volume_id
-should print to stdout:
+vol_id opens the blockdevice node specified at the commandline.
+The following commandline switches are supported to specify what vol_id
+should print:
- no option prints all values
- -h prints help text
- -l prints the label of the partition
- -u prints the uuid of the partition
+ --export prints all values
+ -h prints help text
+ -l prints the label of the partition
+ -u prints the uuid of the partition
-udev_volume_id will only return successful if the string asked for, is not
+vol_id will only return successful if the string asked for, is not
empty. All trailing whitespace will be removed, spaces replaced by underscore
and slashes ignored.
+fstype probe label uuid fsversion
+----------------------------------------------------
+ext * * * *
+reiserfs jr/3.5/3.6/4 * * * *
+fat (12, 16, 32) * * * *
+ntfs * * * *
+jfs * * * -
+xfs * * * -
+hfs (plus, wrapped) * * * -
+udf * * - -
+iso9660 * * n/a -
+ufs * - - -
+linux swap * * * *
+LVM 1 * - - -
+LVM 2 * - - *
+linux raid * - * *
+cramfs * * - -
+sysv * * - *
+luks * - * -
+hpfs * - - -
+romfs *
+minix *
+dasd *
+highpoint *
+isw_raid *
+lsi_raid *
+nvidia_raid *
+promise_raid *
+silicon_raid *
+via_raid *
+mac partitons *
+msdos partitions *
+
+
The following rule will create a symlink named with the label string:
- KERNEL="[hs]d*", PROGRAM="/sbin/udev_volume_id -l %N", SYMLINK="%c"
+ KERNEL=="[hs]d*", PROGRAM=="/sbin/vol_id -l %N", SYMLINK+="%c"
-If no label is found udev_volume_id exits with nonzero and the rule will be
+If no label is found vol_id exits with nonzero and the rule will be
ignored.
To give it a try, you may call it on the commandline:
-
- [root@pim udev.kay]# extras/volume_id/udev_volume_id /dev/hda3
+ [root@pim udev.kay]# extras/volume_id/vol_id /dev/hda3
T:ext3
L:Music Store
N:Music_Store
U:d2da42b5-bbd9-44eb-a72c-cc4542fcb71e
- [root@pim udev.kay]# extras/volume_id/udev_volume_id -l /dev/hda3
+ [root@pim udev.kay]# extras/volume_id/vol_id -l /dev/hda3
Music_Store
- [root@pim udev.kay]# extras/volume_id/udev_volume_id -t /dev/hda3
+ [root@pim udev.kay]# extras/volume_id/vol_id -t /dev/hda3
swap
-Please send any comment/questions/concerns to me or:
- linux-hotplug-devel@lists.sourceforge.net
-
+Any comment/questions/concerns to me:
Kay Sievers <kay.sievers@vrfy.org>
+++ /dev/null
-# s390 block devices named by disk label
-KERNEL="dasd*[a-z]", PROGRAM="/sbin/udev_volume_id -d -l" RESULT="[0-9A-Z]*", SYMLINK="dasd/%c/disc dasd/%b/disc"
-KERNEL="dasd*[0-9]", PROGRAM="/sbin/udev_volume_id -d -l" RESULT="[0-9A-Z]*", SYMLINK="dasd/%c/part%n dasd/%b/part%n"
-KERNEL="dasd*[a-z]", SYMLINK="dasd/%b/disc"
-KERNEL="dasd*[0-9]", SYMLINK="dasd/%b/part%n"
-KERNEL="dcssblk*", NAME="%k", SYMLINK="dcssblk/%b"
-
}
#endif
-extern int optind;
+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 '/':
+ break;
+ case ' ':
+ to[j++] = '_';
+ break;
+ default:
+ to[j++] = from[i];
+ }
+ i++;
+ }
+ to[j] = '\0';
+}
int main(int argc, char *argv[])
{
- const char help[] = "usage: udev_volume_id [-t|-l|-u] <device>\n"
+ const char help[] = "usage: udev_volume_id [--export|-t|-l|-u] <device>\n"
+ " --export\n"
" -t filesystem type\n"
" -l filesystem label\n"
" -u filesystem uuid\n"
"\n";
- static const char short_options[] = "htlu";
+ enum print_type {
+ PRINT_EXPORT,
+ PRINT_TYPE,
+ PRINT_LABEL,
+ PRINT_UUID,
+ } print = PRINT_EXPORT;
struct volume_id *vid = NULL;
- const char *device;
- char print = 'a';
static char name[VOLUME_ID_LABEL_SIZE];
- int len, i, j;
+ int i;
unsigned long long size;
- int rc = 1;
+ const char *node = NULL;
+ int rc = 0;
logging_init("udev_volume_id");
- while (1) {
- int option;
-
- option = getopt(argc, argv, short_options);
- if (option == -1)
- break;
-
- switch (option) {
- case 't':
- print = 't';
- continue;
- case 'l':
- print = 'l';
- continue;
- case 'u':
- print = 'u';
- continue;
- case 'h':
- case '?':
- default:
- printf(help);
- exit(1);
- }
+ for (i = 1 ; i < argc; i++) {
+ char *arg = argv[i];
+
+ if (strcmp(arg, "--export") == 0) {
+ print = PRINT_EXPORT;
+ } else if (strcmp(arg, "-t") == 0) {
+ print = PRINT_TYPE;
+ } else if (strcmp(arg, "-l") == 0) {
+ print = PRINT_LABEL;
+ } else if (strcmp(arg, "-u") == 0) {
+ print = PRINT_UUID;
+ } else
+ node = arg;
}
-
- device = argv[optind];
- if (device == NULL) {
- printf(help);
- exit(1);
+ if (!node) {
+ err("no node specified");
+ fprintf(stderr, help);
+ rc = 1;
+ goto exit;
}
- vid = volume_id_open_node(device);
+ vid = volume_id_open_node(node);
if (vid == NULL) {
- printf("error open volume\n");
+ fprintf(stderr, "error open volume\n");
+ rc = 2;
goto exit;
}
if (volume_id_probe_dasd(vid) == 0)
goto print;
- printf("unknown volume type\n");
+ fprintf(stderr, "unknown volume type\n");
+ rc = 3;
goto exit;
-
print:
- len = strnlen(vid->label, VOLUME_ID_LABEL_SIZE);
-
- /* remove trailing spaces */
- while (len > 0 && isspace(vid->label[len-1]))
- len--;
- name[len] = '\0';
-
- /* substitute chars */
- i = 0;
- j = 0;
- while (j < len) {
- switch(vid->label[j]) {
- case '/' :
- break;
- case ' ' :
- name[i++] = '_';
- break;
- default :
- name[i++] = vid->label[j];
- }
- j++;
- }
- name[i] = '\0';
+ set_str(name, vid->label, sizeof(vid->label));
switch (print) {
- case 't':
+ case PRINT_EXPORT:
+ printf("ID_FS_USAGE=%s\n", vid->usage);
+ printf("ID_FS_TYPE=%s\n", vid->type);
+ printf("ID_FS_VERSION=%s\n", vid->type_version);
+ printf("ID_FS_UUID=%s\n", vid->uuid);
+ printf("ID_FS_LABEL=%s\n", vid->label);
+ printf("ID_FS_LABEL_SAFE=%s\n", name);
+ break;
+ case PRINT_TYPE:
printf("%s\n", vid->type);
break;
- case 'l':
+ case PRINT_LABEL:
if (name[0] == '\0' ||
(vid->usage_id != VOLUME_ID_FILESYSTEM && vid->usage_id != VOLUME_ID_DISKLABEL)) {
- rc = 2;
+ rc = 3;
goto exit;
}
printf("%s\n", name);
break;
- case 'u':
+ case PRINT_UUID:
if (vid->uuid[0] == '\0' || vid->usage_id != VOLUME_ID_FILESYSTEM) {
- rc = 2;
+ rc = 4;
goto exit;
}
printf("%s\n", vid->uuid);
break;
- case 'a':
- printf("F:%s\n", vid->usage);
- printf("T:%s\n", vid->type);
- printf("V:%s\n", vid->type_version);
- printf("L:%s\n", vid->label);
- printf("N:%s\n", name);
- printf("U:%s\n", vid->uuid);
}
- rc = 0;
exit:
if (vid != NULL)
volume_id_close(vid);
logging_close();
-
- exit(rc);
+ return rc;
}
~ianmdlvl / elogind.git / commitdiff