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[PATCH] namedev config files are fully parsed.

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now to do something with the data...
This commit is contained in:
greg@kroah.com 2003-07-18 07:46:17 -07:00 committed by Greg KH
parent 3cc78d2637
commit 469c7cff3b
1 changed files with 136 additions and 16 deletions
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152
namedev.c
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@ -80,13 +80,51 @@ struct config_device {
static LIST_HEAD(config_device_list);
static void dump_dev(struct config_device *dev)
{
switch (dev->type) {
case KERNEL_NAME:
dbg("KERNEL name ='%s'"
" owner = '%s', group = '%s', mode = '%d'",
dev->name,
dev->owner, dev->group, dev->mode);
break;
case LABEL:
dbg("LABEL name = '%s', bus = '%s', sysfs_file = '%s', sysfs_value = '%s'"
" owner = '%s', group = '%s', mode = '%d'",
dev->name, dev->bus, dev->sysfs_file, dev->sysfs_value,
dev->owner, dev->group, dev->mode);
break;
case NUMBER:
dbg("NUMBER name = '%s', bus = '%s', id = '%s'"
" owner = '%s', group = '%s', mode = '%d'",
dev->name, dev->bus, dev->id,
dev->owner, dev->group, dev->mode);
break;
case TOPOLOGY:
dbg("TOPOLOGY name = '%s', bus = '%s', place = '%s'"
" owner = '%s', group = '%s', mode = '%d'",
dev->name, dev->bus, dev->place,
dev->owner, dev->group, dev->mode);
break;
case REPLACE:
dbg("REPLACE name = %s, kernel_name = %s"
" owner = '%s', group = '%s', mode = '%d'",
dev->name, dev->kernel_name,
dev->owner, dev->group, dev->mode);
break;
default:
dbg("Unknown type of device!");
}
}
#define copy_var(a, b, var) \
if (b->var) \
b->var = a->var;
a->var = b->var;
#define copy_string(a, b, var) \
if (strlen(b->var)) \
strcpy(b->var, a->var);
strcpy(a->var, b->var);
static int add_dev(struct config_device *new_dev)
{
@ -99,16 +137,16 @@ static int add_dev(struct config_device *new_dev)
struct config_device *dev = list_entry(tmp, struct config_device, node);
if (strcmp(dev->name, new_dev->name) == 0) {
/* the same, copy the new info into this structure */
copy_var(new_dev, dev, type);
copy_var(new_dev, dev, mode);
copy_string(new_dev, dev, bus);
copy_string(new_dev, dev, sysfs_file);
copy_string(new_dev, dev, sysfs_value);
copy_string(new_dev, dev, id);
copy_string(new_dev, dev, place);
copy_string(new_dev, dev, kernel_name);
copy_string(new_dev, dev, owner);
copy_string(new_dev, dev, group);
copy_var(dev, new_dev, type);
copy_var(dev, new_dev, mode);
copy_string(dev, new_dev, bus);
copy_string(dev, new_dev, sysfs_file);
copy_string(dev, new_dev, sysfs_value);
copy_string(dev, new_dev, id);
copy_string(dev, new_dev, place);
copy_string(dev, new_dev, kernel_name);
copy_string(dev, new_dev, owner);
copy_string(dev, new_dev, group);
return 0;
}
}
@ -119,9 +157,20 @@ static int add_dev(struct config_device *new_dev)
return -ENOMEM;
memcpy(tmp_dev, new_dev, sizeof(*tmp_dev));
list_add(&tmp_dev->node, &config_device_list);
//dump_dev(tmp_dev);
return 0;
}
static void dump_dev_list(void)
{
struct list_head *tmp;
list_for_each(tmp, &config_device_list) {
struct config_device *dev = list_entry(tmp, struct config_device, node);
dump_dev(dev);
}
}
static int get_value(const char *left, char **orig_string, char **ret_string)
{
char *temp;
@ -147,6 +196,30 @@ static int get_value(const char *left, char **orig_string, char **ret_string)
return -ENODEV;
}
static int get_pair(char **orig_string, char **left, char **right)
{
char *temp;
char *string = *orig_string;
/* eat any whitespace */
while (isspace(*string))
++string;
/* split based on '=' */
temp = strsep(&string, "=");
*left = temp;
/* take the right side and strip off the '"' */
while (isspace(*string))
++string;
if (*string == '"')
++string;
temp = strsep(&string, "\"");
*right = temp;
*orig_string = string;
return 0;
}
static int namedev_init_config(void)
{
@ -188,7 +261,7 @@ static int namedev_init_config(void)
if (*temp == COMMENT_CHARACTER)
continue;
memset(&dev, 0x00, sizeof(dev));
memset(&dev, 0x00, sizeof(struct config_device));
/* parse the line */
temp2 = strsep(&temp, ",");
@ -201,7 +274,23 @@ static int namedev_init_config(void)
if (retval)
continue;
strcpy(dev.bus, temp3);
dbg("LABEL name = %s, bus = %s", dev.name, dev.bus);
/* file="value" */
temp2 = strsep(&temp, ",");
retval = get_pair(&temp, &temp2, &temp3);
if (retval)
continue;
strcpy(dev.sysfs_file, temp2);
strcpy(dev.sysfs_value, temp3);
/* NAME="new_name" */
temp2 = strsep(&temp, ",");
retval = get_value("NAME", &temp, &temp3);
if (retval)
continue;
strcpy(dev.name, temp3);
dbg("LABEL name = '%s', bus = '%s', sysfs_file = '%s', sysfs_value = '%s'", dev.name, dev.bus, dev.sysfs_file, dev.sysfs_value);
}
if (strcasecmp(temp2, TYPE_NUMBER) == 0) {
@ -213,7 +302,22 @@ static int namedev_init_config(void)
if (retval)
continue;
strcpy(dev.bus, temp3);
dbg("NUMBER name = %s, bus = %s", dev.name, dev.bus);
/* ID="id" */
temp2 = strsep(&temp, ",");
retval = get_value("id", &temp, &temp3);
if (retval)
continue;
strcpy(dev.id, temp3);
/* NAME="new_name" */
temp2 = strsep(&temp, ",");
retval = get_value("NAME", &temp, &temp3);
if (retval)
continue;
strcpy(dev.name, temp3);
dbg("NUMBER name = '%s', bus = '%s', id = '%s'", dev.name, dev.bus, dev.id);
}
if (strcasecmp(temp2, TYPE_TOPOLOGY) == 0) {
@ -225,7 +329,22 @@ static int namedev_init_config(void)
if (retval)
continue;
strcpy(dev.bus, temp3);
dbg("TOPOLOGY name = %s, bus = %s", dev.name, dev.bus);
/* PLACE="place" */
temp2 = strsep(&temp, ",");
retval = get_value("place", &temp, &temp3);
if (retval)
continue;
strcpy(dev.place, temp3);
/* NAME="new_name" */
temp2 = strsep(&temp, ",");
retval = get_value("NAME", &temp, &temp3);
if (retval)
continue;
strcpy(dev.name, temp3);
dbg("TOPOLOGY name = '%s', bus = '%s', place = '%s'", dev.name, dev.bus, dev.place);
}
if (strcasecmp(temp2, TYPE_REPLACE) == 0) {
@ -340,6 +459,7 @@ int namedev_init(void)
if (retval)
return retval;
dump_dev_list();
return retval;
}