Allow the sniffer to print the trace to STDOUT

wolfSSL · Sep 26, 2024 · 889c8f4 · 889c8f4
1 parent 71d37bf
commit 889c8f4
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Showing 2 changed files with 10 additions and 6 deletions.
diff --git a/src/sniffer.c b/src/sniffer.c
@@ -6866,11 +6866,15 @@ int ssl_Trace(const char* traceFile, char* error)
  if (traceFile) {
  /* Don't try to reopen the file */
  if (TraceFile == NULL) {
- TraceFile = XFOPEN(traceFile, "a");
- if (!TraceFile) {
- SetError(BAD_TRACE_FILE_STR, error, NULL, 0);
- return WOLFSSL_FATAL_ERROR;
- }
+ if (XSTRCMP(traceFile, "-") == 0) {
+ TraceFile = stdout;
+ } else {
+ TraceFile = XFOPEN(traceFile, "a");
+ if (!TraceFile) {
+ SetError(BAD_TRACE_FILE_STR, error, NULL, 0);
+ return WOLFSSL_FATAL_ERROR;
+ }
+ }
  TraceOn = 1;
  }
  }

diff --git a/sslSniffer/README.md b/sslSniffer/README.md
@@ -197,7 +197,7 @@ Frees all resources consumed by the wolfSSL sniffer and should be called when us
 int ssl_Trace(const char* traceFile, char* error);
 ```
 
-Enables Tracing when a file is passed in. Disables Tracing if previously on and a NULL value is passed in for the file.
+Enables Tracing when a file is passed in. When `traceFile` is "-", then the trace will be printed to STDOUT. Disables Tracing if previously on and a NULL value is passed in for the file.
 
 Returns Values: