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http: fix potential memory corruption

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This commit is contained in:
Kamil Trzcinski
2023-06-01 23:05:09 +02:00
parent e3a4d2768f
commit e1a5f987c4
3 changed files with 11 additions and 8 deletions
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13
output/http_jpeg.c
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@ -8,7 +8,7 @@
#include "device/buffer_lock.h"
#define SNAPSHOT_TIMEOUT_MS 3000
#define SNAPSHOT_DEFAULT_DELAY_PARAM "300"
#define SNAPSHOT_DEFAULT_DELAY_PARAM 300
#define PART_BOUNDARY "123456789000000000000987654321"
#define CONTENT_TYPE "image/jpeg"
@ -47,15 +47,18 @@ int http_snapshot_buf_part(buffer_lock_t *buf_lock, buffer_t *buf, int frame, ht
void http_snapshot(http_worker_t *worker, FILE *stream)
{
int max_delay_value = SNAPSHOT_DEFAULT_DELAY_PARAM;
// passing the max_delay=0 will ensure that frame is capture at this exact moment
const char *max_delay = http_get_param(worker, "max_delay");
if (!max_delay) {
max_delay = SNAPSHOT_DEFAULT_DELAY_PARAM;
char *max_delay = http_get_param(worker, "max_delay");
if (max_delay) {
max_delay_value = atoi(max_delay);
free(max_delay);
}
http_snapshot_t snapshot = {
.stream = stream,
.start_time_us = get_monotonic_time_us(NULL, NULL) - atoi(max_delay) * 1000
.start_time_us = get_monotonic_time_us(NULL, NULL) - max_delay_value * 1000
};
int n = buffer_lock_write_loop(&snapshot_lock, 1, SNAPSHOT_TIMEOUT_MS,