/*
* Extract a tag of the form NAME="value" from the line.
*/
static int parse_token(char **name, char **value, char **cp)
{
char *end;
if (!name || !value || !cp)
return -BLKID_ERR_PARAM;
if (!(*value = strchr(*cp, '=')))
return 0;
**value = '\0';
*name = strip_line(*cp);
*value = skip_over_blank(*value + 1);
if (**value == '"') {
char *p = end = *value + 1;
/* convert 'foo\"bar' to 'foo"bar' */
while (*p) {
if (*p == '\\') {
p++;
*end = *p;
} else {
*end = *p;
if (*p == '"')
break;
}
p++;
end++;
}
if (*end != '"') {
DBG(READ, ul_debug("unbalanced quotes at: %s", *value));
*cp = *value;
return -BLKID_ERR_CACHE;
}
(*value)++;
*end = '\0';
end = ++p;
} else {
end = skip_over_word(*value);
if (*end) {
*end = '\0';
end++;
}
}
*cp = end;
return 1;
}
/*
* Allocate a new device struct with device name filled in. Will handle
* finding the device on lines of the form:
* <device foo=bar>devname</device>
* <device>devname<foo>bar</foo></device>
*/
static int parse_dev(blkid_cache cache, blkid_dev *dev, char **cp)
{
char *start, *tmp, *end, *name;
int ret;
if ((ret = parse_start(cp)) <= 0)
return ret;
start = tmp = strchr(*cp, '>');
if (!start) {
DBG(READ, ul_debug("blkid: short line parsing dev: %s", *cp));
return -BLKID_ERR_CACHE;
}
start = skip_over_blank(start + 1);
end = skip_over_word(start);
DBG(READ, ul_debug("device should be %*s",
(int)(end - start), start));
if (**cp == '>')
*cp = end;
else
(*cp)++;
*tmp = '\0';
if (!(tmp = strrchr(end, '<')) || parse_end(&tmp) < 0) {
DBG(READ, ul_debug("blkid: missing </device> ending: %s", end));
} else if (tmp)
*tmp = '\0';
if (end - start <= 1) {
DBG(READ, ul_debug("blkid: empty device name: %s", *cp));
return -BLKID_ERR_CACHE;
}
name = strndup(start, end - start);
if (name == NULL)
return -BLKID_ERR_MEM;
DBG(READ, ul_debug("found dev %s", name));
if (!(*dev = blkid_get_dev(cache, name, BLKID_DEV_CREATE))) {
free(name);
return -BLKID_ERR_MEM;
}
free(name);
return 1;
}
static char *parse_word(char **buf)
{
char *word, *next;
word = *buf;
if (*word == 0)
return 0;
word = skip_over_blank(word);
next = skip_over_word(word);
if (*next)
*next++ = 0;
*buf = next;
return word;
}
static char *parse_word(char **buf)
{
char *word, *next;
word = *buf;
if (*word == '\0')
return NULL;
word = skip_over_blank(word);
next = skip_over_word(word);
if (*next) {
char *end = next - 1;
if (*end == '"' || *end == '\'')
*end = '\0';
*next++ = '\0';
}
*buf = next;
if (*word == '"' || *word == '\'')
word++;
return word;
}
