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Detect failure of device information read

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If the received data is smaller than the device information size, then
something is wrong.
This commit is contained in:
Romain Vimont 2018-02-15 23:47:07 +01:00
parent 9b056f5091
commit cf59d49d25
1 changed files with 2 additions and 1 deletions
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3
app/src/device.c
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@ -3,7 +3,8 @@
SDL_bool device_read_info(socket_t device_socket, char *device_name, struct size *size) { SDL_bool device_read_info(socket_t device_socket, char *device_name, struct size *size) {
unsigned char buf[DEVICE_NAME_FIELD_LENGTH + 4]; unsigned char buf[DEVICE_NAME_FIELD_LENGTH + 4];
if (net_recv(device_socket, buf, sizeof(buf)) <= 0) { int r = net_recv(device_socket, buf, sizeof(buf));
if (r < DEVICE_NAME_FIELD_LENGTH + 4) {
LOGE("Could not retrieve device information"); LOGE("Could not retrieve device information");
return SDL_FALSE; return SDL_FALSE;
} }