Peter M. Groen / libmodbus

Commit 5fd7ec5c1d268ddd74997c458210a4bfcf31359a

Authored by Stéphane Raimbault
1 parent 5f77c114

Fix too short uint8_t for rsp_length (bug introduced by 018cdd6)

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Showing 1 changed file with 2 additions and 4 deletions
src/modbus.c
  View file @5fd7ec5
@@ -107,9 +107,7 @@ int modbus_flush(modbus_t *ctx) @@ -107,9 +107,7 @@ int modbus_flush(modbus_t *ctx)
107 static unsigned int compute_response_length_from_request(modbus_t *ctx, uint8_t *req) 107 static unsigned int compute_response_length_from_request(modbus_t *ctx, uint8_t *req)
108 { 108 {
109 int length; 109 int length;
110 - int offset;  
111 -  
112 - offset = ctx->backend->header_length; 110 + const int offset = ctx->backend->header_length;
113 111
114 switch (req[offset]) { 112 switch (req[offset]) {
115 case _FC_READ_COILS: 113 case _FC_READ_COILS:
@@ -450,7 +448,7 @@ int modbus_receive_confirmation(modbus_t *ctx, uint8_t *rsp) @@ -450,7 +448,7 @@ int modbus_receive_confirmation(modbus_t *ctx, uint8_t *rsp)
450 } 448 }
451 449
452 static int check_confirmation(modbus_t *ctx, uint8_t *req, 450 static int check_confirmation(modbus_t *ctx, uint8_t *req,
453 - uint8_t *rsp, uint8_t rsp_length) 451 + uint8_t *rsp, int rsp_length)
454 { 452 {
455 int rc; 453 int rc;
456 int rsp_length_computed; 454 int rsp_length_computed;