feat: defined unsigned char as byte_t

1 files changed, 8 insertions, 7 deletions

diff --git a/analyzer/utils/pcap.h b/analyzer/utils/pcap.h
index a423083..10f01f1 100644
--- a/analyzer/utils/pcap.h
+++ b/analyzer/utils/pcap.h
@@ -5,6 +5,8 @@
 
 #include "hashmap.h"
 
+typedef unsigned char byte_t;
+
 // get payload from a TCP/IP packet
 // params:
 //      - packet - captured packet
@@ -13,11 +15,11 @@
 //      - tcp_seq - pointer to save the TCP sequence number
 // returns:
 //      pointer to the payload or NULL if not a correct packet
-extern const unsigned char *get_payload_from_packet(const unsigned char *packet, const struct pcap_pkthdr *packet_data, int *payload_len, uint32_t *tcp_seq);
+extern const byte_t *get_payload_from_packet(const byte_t *packet, const struct pcap_pkthdr *packet_data, int *payload_len, uint32_t *tcp_seq);
 
 // struct to persistently store pending payloads
 typedef struct {
-    unsigned char *payload;
+    byte_t *payload;
     int payload_len;
 } PendingPayload;
 
@@ -27,7 +29,7 @@ typedef struct {
 //      - payload_len - length of the payload to store
 // returns:
 //      PendingPayload struct with stored payload
-extern PendingPayload new_pending(const unsigned char *payload, int payload_len);
+extern PendingPayload new_pending(const byte_t *payload, int payload_len);
 
 // remove parsed part of the stream from memory and return only unparsed part
 // params:
@@ -37,7 +39,7 @@ extern PendingPayload new_pending(const unsigned char *payload, int payload_len)
 //      - parsed_len - count of n first bytes of the stream that were parsed
 // returns:
 //      pointer to the new, reduced stream
-extern unsigned char *free_parsed_data(unsigned char *stream, uint32_t stream_seq, int stream_len, int parsed_len);
+extern byte_t *free_parsed_data(byte_t *stream, uint32_t stream_seq, int stream_len, int parsed_len);
 
 // add TCP segment to stream
 // params:
@@ -50,6 +52,5 @@ extern unsigned char *free_parsed_data(unsigned char *stream, uint32_t stream_se
 //      - pending - hashmap (seq -> PendingPayload) of pending payloads to be added to stream
 // returns:
 //      1 if the payload was added to the stream, 0 if it was discarded or saved to pending
-extern int add_segment_to_stream(
-    unsigned char *stream, uint32_t stream_seq, int stream_len, const unsigned char *payload, uint32_t payload_seq, int payload_len, HashMap *pending
-);
+extern int
+add_segment_to_stream(byte_t *stream, uint32_t stream_seq, int stream_len, const byte_t *payload, uint32_t payload_seq, int payload_len, HashMap *pending);