Revision 8
pointer validation in util_sys_inb
| lab2/timer.c | ||
|---|---|---|
| 61 | 61 |
} |
| 62 | 62 |
if(timer_print_config(timer, field, conf)) return 1; |
| 63 | 63 |
} |
| 64 |
if(field == tsf_all || field == tsf_mode){
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|
| 64 |
if(field == tsf_mode){
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|
| 65 | 65 |
conf.count_mode = (st & TIMER_MODE_MASK)>>TIMER_MODE_POS; |
| 66 | 66 |
if(timer_print_config(timer, field, conf)) return 1; |
| 67 | 67 |
} |
| 68 |
if(field == tsf_all || field == tsf_base){
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| 68 |
if(field == tsf_base){
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|
| 69 | 69 |
conf.bcd = st & TIMER_BCD; |
| 70 | 70 |
if(timer_print_config(timer, field, conf)) return 1; |
| 71 | 71 |
} |
| lab2/utils.c | ||
|---|---|---|
| 19 | 19 |
|
| 20 | 20 |
int (util_sys_inb)(int port, uint8_t *value) {
|
| 21 | 21 |
/* To be implemented by the students */ |
| 22 |
if(value == NULL) return 1; |
|
| 22 | 23 |
uint32_t n = 0; |
| 23 | 24 |
int ret = sys_inb(port, &n); |
| 24 | 25 |
*value = n; |
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