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arm, am335x, siemens: fix factoryset interpretation

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a record could contain other records, so after an ">" (begin mark)
there not always come an end mark "<", instead a ">" is possible.
Take care of this.

Signed-off-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Heiko Schocher 2014-11-18 11:51:04 +01:00 committed by Tom Rini
parent fb384c4720
commit 7dc60d81a1
1 changed files with 18 additions and 8 deletions
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26
board/siemens/common/factoryset.c
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@ -86,6 +86,7 @@ int get_factory_record_val(unsigned char *eeprom_buf, int size, uchar *record,
int i, nxt = 0;
int c;
unsigned char end = 0xff;
unsigned char tmp;
for (i = 0; fact_get_char(i) != end; i = nxt) {
nxt = i + 1;
@ -93,6 +94,7 @@ int get_factory_record_val(unsigned char *eeprom_buf, int size, uchar *record,
int pos;
int endpos;
int z;
int level = 0;
c = strncmp((char *)&eeprom_buf[i + 1], (char *)record,
strlen((char *)record));
@ -103,22 +105,30 @@ int get_factory_record_val(unsigned char *eeprom_buf, int size, uchar *record,
/* search for "<" */
c = -1;
for (z = pos; fact_get_char(z) != end; z++) {
if ((fact_get_char(z) == '<') ||
(fact_get_char(z) == '>')) {
endpos = z;
nxt = endpos;
c = 0;
break;
if (fact_get_char(z) == '<') {
if (level == 0) {
endpos = z;
nxt = endpos;
c = 0;
break;
} else {
level--;
}
}
if (fact_get_char(z) == '>')
level++;
}
} else {
continue;
}
if (c == 0) {
/* end found -> call get_factory_val */
tmp = eeprom_buf[endpos];
eeprom_buf[endpos] = end;
ret = get_factory_val(&eeprom_buf[pos],
size - pos, name, buf, len);
endpos - pos, name, buf, len);
/* fix buffer */
eeprom_buf[endpos] = '<';
eeprom_buf[endpos] = tmp;
debug("%s: %s.%s = %s\n",
__func__, record, name, buf);
return ret;