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Prettification, set errno on errors

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XANTRONIX Development 2020-05-23 13:21:34 -04:00 • committed by XANTRONIX Industrial
parent 3074af45c1
commit dc55a7fc6c
1 changed files with 18 additions and 6 deletions
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24
src/frame.c
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@ -3,7 +3,9 @@
#include <patty/ax25.h>
static ssize_t frame_decode_station(patty_ax25_address *address, void *data, off_t offset) {
static ssize_t frame_decode_station(patty_ax25_address *address,
void *data,
off_t offset) {
int i, space = 0;
uint8_t ssid = ((uint8_t *)data + offset)[6];
@ -59,7 +61,9 @@ error:
return -1;
}
static ssize_t frame_decode_hops(patty_ax25_frame *frame, void *data, off_t start) {
static ssize_t frame_decode_hops(patty_ax25_frame *frame,
void *data,
off_t start) {
ssize_t decoded;
off_t offset = start;
@ -101,7 +105,9 @@ error:
return -1;
}
static ssize_t frame_decode_address(patty_ax25_frame *frame, void *data, off_t start) {
static ssize_t frame_decode_address(patty_ax25_frame *frame,
void *data,
off_t start) {
off_t offset = start;
ssize_t decoded;
@ -153,7 +159,9 @@ error:
return -1;
}
static ssize_t frame_decode_payload(patty_ax25_frame *frame, void *data, off_t offset) {
static ssize_t frame_decode_payload(patty_ax25_frame *frame,
void *data,
off_t offset) {
uint8_t control = ((uint8_t *)data + offset)[0];
size_t decoded = 0;
@ -206,7 +214,7 @@ error:
int patty_ax25_frame_decode(patty_ax25_frame *frame, void *data, size_t size) {
ssize_t decoded;
off_t offset = 0;
off_t offset = 0;
memset(frame, '\0', sizeof(*frame));
@ -216,16 +224,20 @@ int patty_ax25_frame_decode(patty_ax25_frame *frame, void *data, size_t size) {
* First, decode the variable-length Address field.
*/
if ((decoded = frame_decode_address(frame, data, offset)) < 0) {
errno = EIO;
goto error_decode;
} else {
offset += decoded;
}
/*
* Now, decode the remaining Control Field, optional Protocol Identifier
* Next, decode the remaining Control Field, optional Protocol Identifier
* field, and payload that may follow.
*/
if ((decoded = frame_decode_payload(frame, data, offset)) < 0) {
errno = EIO;
goto error_decode;
} else {
offset += decoded;