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[PATCH] update cdsymlinks to latest version

diff -ur udev-057.orig/extras/cdsymlinks.c udev-057/extras/cdsymlinks.c
This commit is contained in:
Darren Salt 2005-05-19 22:24:38 +01:00 committed by Greg KH
parent 539876083d
commit d514329ee2
3 changed files with 132 additions and 80 deletions

View File

@ -11,7 +11,12 @@
* BUS="scsi", KERNEL="scd[0-9]*", PROGRAM="/etc/udev/cdsymlinks.sh %k", SYMLINK="%c{1} %c{2} %c{3} %c{4} %c{5} %c{6}"
* (this last one is "just in case")
*
* (c) 2004 Darren Salt <linux@youmustbejoking.demon.co.uk>
* (c) 2004, 2005 Darren Salt <linux@youmustbejoking.demon.co.uk>
*
* Contributors:
* - J A Magallon <jamagallon@able.es> (bug fixes)
*
* Last modified: 2005-02-15
*/
#define _GNU_SOURCE
@ -56,6 +61,7 @@ struct list_t {
/* Configuration variables */
static struct list_t allowed_output = {0};
static int numbered_links = 1;
static int link_zero = 0;
/* Available devices */
static struct list_t Devices = {0};
@ -65,14 +71,40 @@ static struct list_t Devices = {0};
*/
static struct list_t cap_DVDRAM = {0}, cap_DVDRW = {0}, cap_DVD = {0},
cap_CDRW = {0}, cap_CDR = {0}, cap_CDWMRW = {0},
cap_CDMRW = {0};
cap_CDMRW = {0}, cap_CDRAM = {0};
/* Device capabilities by name */
static struct list_t dev_DVDRAM = {0}, dev_DVDRW = {0}, dev_DVD = {0},
dev_CDRW = {0}, dev_CDR = {0}, dev_CDWMRW = {0},
dev_CDMRW = {0};
dev_CDMRW = {0}, dev_CDRAM = {0};
#define dev_CD Devices
typedef struct {
struct list_t *cap, *dev;
const char label[8], symlink[8];
const char *captext;
int captextlen;
} cap_dev_t;
#define CAPDEV(X) &cap_##X, &dev_##X
static const cap_dev_t cap_dev_info[] = {
{ NULL, &dev_CD, "CD", "cdrom", NULL, 0 },
{ CAPDEV(CDR), "CDR", "cd-r", "Can write CD-R:", 15 },
{ CAPDEV(CDRW), "CDRW", "cdrw", "Can write CD-RW:", 16 },
{ CAPDEV(DVD), "DVD", "dvd", "Can read DVD:", 13 },
{ CAPDEV(DVDRW), "DVDRW", "dvdrw", "Can write DVD-R:", 16 },
{ CAPDEV(DVDRAM), "DVDRAM", "dvdram", "Can write DVD-RAM:", 18 },
{ CAPDEV(CDMRW), "CDMRW", "cdm", "Can read MRW:", 13 }, /* CDC-MRW R */
{ CAPDEV(CDWMRW), "CDWMRW", "cdmrw", "Can write MRW:", 14 }, /* CDC-MRW W */
{ CAPDEV(CDRAM), "CDRAM", "cdram", "Can write RAM:", 14 }, /* CDC-RAM W */
{ NULL }
};
#define foreach_cap_dev(loop) \
for ((loop) = cap_dev_info; (loop)->label[0]; ++(loop))
#define foreach_cap_dev_noCD(loop) \
for ((loop) = cap_dev_info + 1; (loop)->label[0]; ++(loop))
/*
* Some library-like bits first...
@ -218,7 +250,7 @@ static void
list_assign_split (struct list_t *list, char *text)
{
char *token = strchr (text, ':');
token = strtok (token ? token + 1 : text, " \t");
token = strtok (token ? token + 1 : text, " \t\n");
while (token)
{
list_prepend (list, token);
@ -267,8 +299,10 @@ read_defaults (void)
list_delete (&allowed_output);
list_assign_split (&allowed_output, p.we_wordv[0] + 7);
}
else if (!strncmp (p.we_wordv[0], "NUMBERED_LINKS=", 14))
numbered_links = atoi (p.we_wordv[0] + 14);
else if (!strncmp (p.we_wordv[0], "NUMBERED_LINKS=", 15))
numbered_links = atoi (p.we_wordv[0] + 15);
else if (!strncmp (p.we_wordv[0], "LINK_ZERO=", 15))
link_zero = atoi (p.we_wordv[0] + 15);
break;
}
/* fall through */
@ -315,20 +349,16 @@ populate_capability_lists (void)
{
if (!strncasecmp (text, "drive name", 10))
list_assign_split (&Devices, text);
else if (!strncasecmp (text, "Can write DVD-RAM", 17))
list_assign_split (&cap_DVDRAM, text);
else if (!strncasecmp (text, "Can write DVD-R", 15))
list_assign_split (&cap_DVDRW, text);
else if (!strncasecmp (text, "Can read DVD", 12))
list_assign_split (&cap_DVD, text);
else if (!strncasecmp (text, "Can write CD-RW", 15))
list_assign_split (&cap_CDRW, text);
else if (!strncasecmp (text, "Can write CD-R", 14))
list_assign_split (&cap_CDR, text);
else if (!strncasecmp (text, "Can read MRW", 14))
list_assign_split (&cap_CDMRW, text);
else if (!strncasecmp (text, "Can write MRW", 14))
list_assign_split (&cap_CDWMRW, text);
else
{
const cap_dev_t *cap;
foreach_cap_dev_noCD (cap)
if (!strncasecmp (text, cap->captext, cap->captextlen))
{
list_assign_split (cap->cap, text);
break;
}
}
}
if (!feof (info))
errexit ("error accessing CD/DVD info");
@ -341,7 +371,8 @@ populate_capability_lists (void)
* taking into account existing links and the capability list for type LINK.
*/
static void
do_output (const char *name, const char *link, const struct list_t *dev)
do_output (const char *name, const char *link, const struct list_t *dev,
int do_link_zero)
{
const struct list_item_t *i = (const struct list_item_t *)dev;
if (!i->next)
@ -406,6 +437,8 @@ do_output (const char *name, const char *link, const struct list_t *dev)
/* Existing symlink found - don't output a new one.
* If ISDEV, we output the name of the existing symlink.
*/
if (do_link_zero)
return;
present = 1;
if (isdev)
printf (" %s", list_nth (&devls, li)->data);
@ -415,14 +448,19 @@ do_output (const char *name, const char *link, const struct list_t *dev)
if (!present)
{
char buf[256];
snprintf (buf, sizeof (buf), count ? "%s%d" : "%s", link, count);
snprintf (buf, sizeof (buf), count || do_link_zero ? "%s%d" : "%s",
link, count);
/* Find the next available (not present) symlink name.
* We always need to do this for reasons of output consistency: if a
* symlink is created by udev as a result of use of this program, we
* DON'T want different output!
*/
while (list_search (&devls, buf))
{
if (do_link_zero)
return;
snprintf (buf, sizeof (buf), "%s%d", link, ++count);
}
/* If ISDEV, output it. */
if (isdev && (numbered_links || count == 0))
printf (" %s", buf);
@ -431,6 +469,8 @@ do_output (const char *name, const char *link, const struct list_t *dev)
*/
if (!list_search (&devls, buf))
{
if (do_link_zero)
return;
list_append (&devls, buf);
++count;
}
@ -458,6 +498,8 @@ populate_device_list (struct list_t *out, const struct list_t *caps)
int
main (int argc, char *argv[])
{
const cap_dev_t *capdev;
progname = argv[0];
debug = argc > 2 && !strcmp (argv[2], "-d");
@ -470,62 +512,43 @@ main (int argc, char *argv[])
read_defaults ();
populate_capability_lists ();
/* Construct the device lists from the capability lists. */
populate_device_list (&dev_DVDRAM, &cap_DVDRAM);
populate_device_list (&dev_DVDRW, &cap_DVDRW);
populate_device_list (&dev_DVD, &cap_DVD);
populate_device_list (&dev_CDRW, &cap_CDRW);
populate_device_list (&dev_CDR, &cap_CDR);
populate_device_list (&dev_CDWMRW, &cap_CDWMRW);
populate_device_list (&dev_CDMRW, &cap_CDMRW);
/* (All devices can read CDs.) */
/* Construct the device lists from the capability lists.
* (We assume that all relevant devices can read CDs.)
*/
foreach_cap_dev_noCD (capdev)
populate_device_list (capdev->dev, capdev->cap);
if (debug)
{
#define printdev(DEV) \
printf ("%-7s:", #DEV); \
list_print (&cap_##DEV, stdout); \
list_print (&dev_##DEV, stdout); \
puts ("");
printf ("Devices:");
const struct list_item_t *item = (const struct list_item_t *)&Devices;
while ((item = item->next) != NULL)
printf (" %s", item->data);
puts ("");
printdev (DVDRAM);
printdev (DVDRW);
printdev (DVD);
printdev (CDRW);
printdev (CDR);
printdev (CDWMRW);
printdev (CDMRW);
printf ("CDROM : (all)");
printf ("\nCDROM : (all)");
item = (const struct list_item_t *)&dev_CD;
while ((item = item->next) != NULL)
printf (" %s", item->data);
puts ("");
foreach_cap_dev_noCD (capdev)
{
printf ("%-10s:", capdev->label);
list_print (capdev->cap, stdout);
list_print (capdev->dev, stdout);
puts ("");
}
}
/* Write the symlink names. */
if (list_search (&allowed_output, "CD"))
do_output (argv[1], "cdrom", &dev_CD);
if (list_search (&allowed_output, "CDR"))
do_output (argv[1], "cd-r", &dev_CDR);
if (list_search (&allowed_output, "CDRW"))
do_output (argv[1], "cdrw", &dev_CDRW);
if (list_search (&allowed_output, "DVD"))
do_output (argv[1], "dvd", &dev_DVD);
if (list_search (&allowed_output, "DVDRW"))
do_output (argv[1], "dvdrw", &dev_DVDRW);
if (list_search (&allowed_output, "DVDRAM"))
do_output (argv[1], "dvdram", &dev_DVDRAM);
if (list_search (&allowed_output, "CDMRW"))
do_output (argv[1], "cdmrw", &dev_CDMRW);
if (list_search (&allowed_output, "CDWMRW"))
do_output (argv[1], "cdwmrw", &dev_CDWMRW);
foreach_cap_dev (capdev)
if (list_search (&allowed_output, capdev->label))
{
do_output (argv[1], capdev->symlink, capdev->dev, 0);
if (link_zero)
do_output (argv[1], capdev->symlink, capdev->dev, 1);
}
puts ("");
return 0;

View File

@ -1,8 +1,13 @@
# Configuration file for cdsymlinks
# Output links for these types of devices.
# Allowed keywords are CD, CDR, CDRW, DVD, DVDRW, DVDRAM, CDMRW, CDWMRW.
# Allowed keywords are: corresponding to device names:
# CD CDR CDRW cdrom cd-r cdrw
# DVD DVDRW DVDRAM dvd dvdrw dvdram
# CDMRW CDWMRW cdm cdmrw
# CDRAM cdram
# Other words are accepted but ignored.
# Devices with multiple recognised capabilities WILL get multiple links.
#OUTPUT="CD CDRW DVD DVDRW DVDRAM"
# Whether to output numbered links.
@ -10,3 +15,7 @@
# 0 = don't output 'cdrom1', 'dvd1' etc.
# We always output 'cdrom', 'dvd' etc. for the best-match devices.
#NUMBERED_LINKS=1
# Whether to output link 0 along with each unnumbered link.
# (No effect if NUMBERED_LINKS=0.)
#LINK_ZERO=0

View File

@ -1,6 +1,7 @@
#! /bin/sh -e
#
# Map cdrom, cdm, cdmrw, cd-r, cdrw, dvd, dvdrw, dvdram to suitable devices.
# Map cdrom, cd-r, cdrw, dvd, dvdrw, dvdram, cdm, cdmrw, cdram
# to suitable devices.
# Prefers cd* for DVD-incapable and cdrom and dvd for read-only devices.
# First parameter is the kernel device name.
# Second parameter, if present, must be "-d" => output the full mapping.
@ -11,13 +12,16 @@
# BUS="scsi", KERNEL="scd[0-9]*", PROGRAM="/etc/udev/cdsymlinks.sh %k", SYMLINK="%c{1} %c{2} %c{3} %c{4} %c{5} %c{6}"
# (this last one is "just in case")
#
# (c) 2004 Darren Salt <linux@youmustbejoking.demon.co.uk>
# (c) 2004, 2005 Darren Salt <linux@youmustbejoking.demon.co.uk>
#
# Last modified: 2005-02-15
test -e /proc/sys/dev/cdrom/info || exit 0
# Defaults; it's better that you alter them in /etc/udev/cdsymlinks.conf
OUTPUT='CD CDRW DVD DVDRW DVDRAM'
NUMBERED_LINKS=1
LINK_ZERO=0
test -e /etc/udev/cdsymlinks.conf && . /etc/udev/cdsymlinks.conf
@ -61,6 +65,7 @@ setArray CDRWs `sed -re '/^Can write CD-RW:/I! d; s/.*://' /proc/sys/dev/cdr
setArray CDRs `sed -re '/^Can write CD-R:/I! d; s/.*://' /proc/sys/dev/cdrom/info`
setArray CDMRWs `sed -re '/^Can write MRW:/I! d; s/.*://' /proc/sys/dev/cdrom/info`
setArray CDMs `sed -re '/^Can read MRW:/I! d; s/.*://' /proc/sys/dev/cdrom/info`
setArray CDRAMs `sed -re '/^Can write RAM:/I! d; s/.*://' /proc/sys/dev/cdrom/info`
# How many devices do we have?
NumDevs=$(($DEVICES-1))
@ -80,6 +85,7 @@ for i in $Count; do
test "`ix CDRs $i`" != '' || ixs CDRs $i 0
test "`ix CDMRWs $i`" != '' || ixs CDMRWs $i 0
test "`ix CDMs $i`" != '' || ixs CDMs $i 0
test "`ix CDRAMs $i`" != '' || ixs CDRAMs $i 0
done
DVDRAM=''
@ -89,6 +95,7 @@ CDRW=''
CDR=''
CDMRW=''
CDM=''
CDRAM=''
CD=''
# Calculate symlink->device mappings.
@ -116,6 +123,9 @@ done
for i in $Count; do
test "`ix CDMs $i`" = 1 && CDM="$CDM `ix DEVICES $i`"
done
for i in $Count; do
test "`ix CDRAMs $i`" = 1 && CDRAM="$CDRAM `ix DEVICES $i`"
done
for i in $Count; do
CD="$CD `ix DEVICES $i`"
done
@ -123,21 +133,22 @@ done
# Debug output
if test "$DEBUG" = 1; then
echo 'Devices:' `for i in $Count; do ix DEVICES $i; echo -n \ ; done`
echo 'DVDRAM :' `for i in $Count; do ix DVDRAMs $i; echo -n \ ; done` $DVDRAM
echo 'DVDRW :' `for i in $Count; do ix DVDRWs $i; echo -n \ ; done` $DVDRW
echo 'DVD :' `for i in $Count; do ix DVDs $i; echo -n \ ; done` $DVD
echo 'CDRW :' `for i in $Count; do ix CDRWs $i; echo -n \ ; done` $CDRW
echo 'CD-R :' `for i in $Count; do ix CDRs $i; echo -n \ ; done` $CDR
echo 'CDMRW :' `for i in $Count; do ix CDMRWs $i; echo -n \ ; done` $CDMRW
echo 'CDM :' `for i in $Count; do ix CDMs $i; echo -n \ ; done` $CDM
echo 'CDROM : (all)' $CD
echo 'CD-R :' `for i in $Count; do ix CDRs $i; echo -n \ ; done` $CDR
echo 'CDRW :' `for i in $Count; do ix CDRWs $i; echo -n \ ; done` $CDRW
echo 'DVD :' `for i in $Count; do ix DVDs $i; echo -n \ ; done` $DVD
echo 'DVDRW :' `for i in $Count; do ix DVDRWs $i; echo -n \ ; done` $DVDRW
echo 'DVDRAM :' `for i in $Count; do ix DVDRAMs $i; echo -n \ ; done` $DVDRAM
echo 'CDMRW :' `for i in $Count; do ix CDMRWs $i; echo -n \ ; done` $CDMRW
echo 'CDWMRW :' `for i in $Count; do ix CDMs $i; echo -n \ ; done` $CDM
echo 'CDRAM :' `for i in $Count; do ix CDRAMs $i; echo -n \ ; done` $CDRAM
fi
# Prepare symlink names output
output () {
do_output () {
test "`eval echo '$'$3`" = '' && return
local i
local COUNT=''
local COUNT=$4
local DEVLS="`ls -dl \"/dev/$2\" \"/dev/$2\"[0-9]* 2>/dev/null`"
local PRESENT="`echo "$DEVLS" |
sed -re 's!^.* /dev/('$2'[[:digit:]]*) -> [^[:space:]]+$!\1!'`"
@ -148,6 +159,7 @@ output () {
if test "$DEVPRESENT" != ""; then
# Existing symlinks found - don't output a new one.
# If the target dev ($1) is the current dev ($i), we output their names.
test -z "$4" || return;
test "$1" = "$i" && echo " $DEVPRESENT" | sed -e 'N; $ s/\n/ /'
else
# If we found no existing symlinks for the target device...
@ -156,15 +168,17 @@ output () {
# symlink is created by udev as a result of use of this program, we
# DON'T want different output!
until notin PRESENT "$2$COUNT"; do
test -z "$4" || return;
COUNT=$(($COUNT+1))
done
# If the target dev ($1) is the current dev ($i), we output its name.
if test $(($NUMBERED_LINKS)) -ne 0 || test "$COUNT" = ''; then
test "$i" = "$1" && echo -n " $2$COUNT"
if test $(($NUMBERED_LINKS)) -ne 0 || test -z "$COUNT"; then
test "$i" != "$1" || echo -n " $2$COUNT"
fi
# If the link isn't in our "existing links" list, add it and increment
# our counter.
if test ! -e "/dev/$2$COUNT"; then
if notin PRESENT "$2$COUNT"; then
test -z "$4" || return;
PRESENT="$PRESENT\n$2$COUNT"
COUNT=$(($COUNT+1))
fi
@ -172,13 +186,19 @@ output () {
done
}
output () {
do_output "$@"
test $(($LINK_ZERO)) -eq 0 || do_output "$@" 0
}
# And output it
notin OUTPUT CD || echo -n "`output "$1" cdrom CD`"
notin OUTPUT CDMRW || echo -n "`output "$1" cdmrw CDM`"
notin OUTPUT CDWMRW || echo -n "`output "$1" cdwmrw CDMRW`"
notin OUTPUT CDR || echo -n "`output "$1" cd-r CDR`"
notin OUTPUT CDRW || echo -n "`output "$1" cdrw CDRW`"
notin OUTPUT DVD || echo -n "`output "$1" dvd DVD`"
notin OUTPUT DVDRW || echo -n "`output "$1" dvdrw DVDRW`"
notin OUTPUT DVDRAM || echo -n "`output "$1" dvdram DVDRAM`"
notin OUTPUT CDMRW || echo -n "`output "$1" cdmrw CDM`"
notin OUTPUT CDWMRW || echo -n "`output "$1" cdwmrw CDMRW`"
notin OUTPUT CDRAM || echo -n "`output "$1" cdram CDRAM`"
echo