3 files changed, 5 insertions, 6 deletions
diff --git a/src/bitcoin-cli.cpp b/src/bitcoin-cli.cpp
index 774a255b6..76cc19cc8 100644
--- a/src/bitcoin-cli.cpp
+++ b/src/bitcoin-cli.cpp
@@ -499,7 +499,7 @@ static int CommandLineRPC(int argc, char *argv[])
     }
 
     if (strPrint != "") {
-        fprintf((nRet == 0 ? stdout : stderr), "%s\n", strPrint.c_str());
+        tfm::format(nRet == 0 ? std::cout : std::cerr, "%s\n", strPrint.c_str());
     }
     return nRet;
 }
diff --git a/src/bitcoin-tx.cpp b/src/bitcoin-tx.cpp
index 6a7a22fb1..dcf6dddf2 100644
--- a/src/bitcoin-tx.cpp
+++ b/src/bitcoin-tx.cpp
@@ -827,7 +827,7 @@ static int CommandLineRawTx(int argc, char* argv[])
     }
 
     if (strPrint != "") {
-        fprintf((nRet == 0 ? stdout : stderr), "%s\n", strPrint.c_str());
+        tfm::format(nRet == 0 ? std::cout : std::cerr, "%s\n", strPrint.c_str());
     }
     return nRet;
 }
diff --git a/src/init.cpp b/src/init.cpp
index 1ed44821e..557102efc 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -106,14 +106,13 @@ static fs::path GetPidFile()
 
 NODISCARD static bool CreatePidFile()
 {
-    FILE* file = fsbridge::fopen(GetPidFile(), "w");
+    fsbridge::ofstream file{GetPidFile()};
     if (file) {
 #ifdef WIN32
-        fprintf(file, "%d\n", GetCurrentProcessId());
+        tfm::format(file, "%d\n", GetCurrentProcessId());
 #else
-        fprintf(file, "%d\n", getpid());
+        tfm::format(file, "%d\n", getpid());
 #endif
-        fclose(file);
         return true;
     } else {
         return InitError(strprintf(_("Unable to create the PID file '%s': %s"), GetPidFile().string(), std::strerror(errno)));