LibC: Replace fprintf(stderr) with warnln()

3 files changed, 11 insertions, 16 deletions

diff --git a/Userland/Libraries/LibC/grp.cpp b/Userland/Libraries/LibC/grp.cpp
index 16c2eb011a..a3032b569d 100644
--- a/Userland/Libraries/LibC/grp.cpp
+++ b/Userland/Libraries/LibC/grp.cpp
@@ -77,7 +77,7 @@ static bool parse_grpdb_entry(const String& line)
 {
     auto parts = line.split_view(':', true);
     if (parts.size() != 4) {
-        fprintf(stderr, "getgrent(): Malformed entry on line %u: '%s' has %zu parts\n", s_line_number, line.characters(), parts.size());
+        warnln("getgrent(): Malformed entry on line {}: '{}' has {} parts", s_line_number, line, parts.size());
         return false;
     }
 
@@ -89,7 +89,7 @@ static bool parse_grpdb_entry(const String& line)
 
     auto gid = gid_string.to_uint();
     if (!gid.has_value()) {
-        fprintf(stderr, "getgrent(): Malformed GID on line %u\n", s_line_number);
+        warnln("getgrent(): Malformed GID on line {}", s_line_number);
         return false;
     }
 
@@ -119,7 +119,7 @@ struct group* getgrent()
             return nullptr;
 
         if (ferror(s_stream)) {
-            fprintf(stderr, "getgrent(): Read error: %s\n", strerror(ferror(s_stream)));
+            warnln("getgrent(): Read error: {}", strerror(ferror(s_stream)));
             return nullptr;
         }
 
diff --git a/Userland/Libraries/LibC/netdb.cpp b/Userland/Libraries/LibC/netdb.cpp
index 77d0b790dd..fad14c2b40 100644
--- a/Userland/Libraries/LibC/netdb.cpp
+++ b/Userland/Libraries/LibC/netdb.cpp
@@ -433,14 +433,14 @@ static bool fill_getserv_buffers(const char* line, ssize_t read)
     // Services file entries should always at least contain
     // name and port/protocol, separated by tabs.
     if (split_line.size() < 2) {
-        fprintf(stderr, "getservent(): malformed services file\n");
+        warnln("getservent(): malformed services file");
         return false;
     }
     __getserv_name_buffer = split_line[0];
 
     auto port_protocol_split = String(split_line[1]).split('/');
     if (port_protocol_split.size() < 2) {
-        fprintf(stderr, "getservent(): malformed services file\n");
+        warnln("getservent(): malformed services file");
         return false;
     }
     auto number = port_protocol_split[0].to_int();
@@ -615,7 +615,7 @@ static bool fill_getproto_buffers(const char* line, ssize_t read)
     // This indicates an incorrect file format. Protocols file entries should
     // always have at least a name and a protocol.
     if (split_line.size() < 2) {
-        fprintf(stderr, "getprotoent(): malformed protocols file\n");
+        warnln("getprotoent(): malformed protocols file");
         return false;
     }
     __getproto_name_buffer = split_line[0];
diff --git a/Userland/Libraries/LibC/termcap.cpp b/Userland/Libraries/LibC/termcap.cpp
index 30216da2a7..93c4d9f1be 100644
--- a/Userland/Libraries/LibC/termcap.cpp
+++ b/Userland/Libraries/LibC/termcap.cpp
@@ -9,7 +9,6 @@
 #include <AK/String.h>
 #include <AK/Vector.h>
 #include <assert.h>
-#include <stdio.h>
 #include <string.h>
 #include <termcap.h>
 
@@ -21,8 +20,7 @@ char* BC;
 
 int tgetent([[maybe_unused]] char* bp, [[maybe_unused]] const char* name)
 {
-    if constexpr (TERMCAP_DEBUG)
-        fprintf(stderr, "tgetent: bp=%p, name='%s'\n", bp, name);
+    warnln_if(TERMCAP_DEBUG, "tgetent: bp={:p}, name='{}'", bp, name);
     PC = '\0';
     BC = const_cast<char*>("\033[D");
     UP = const_cast<char*>("\033[A");
@@ -80,8 +78,7 @@ static void ensure_caps()
 char* tgetstr(const char* id, char** area)
 {
     ensure_caps();
-    if constexpr (TERMCAP_DEBUG)
-        fprintf(stderr, "tgetstr: id='%s'\n", id);
+    warnln_if(TERMCAP_DEBUG, "tgetstr: id='{}'", id);
     auto it = caps->find(id);
     if (it != caps->end()) {
         char* ret = *area;
@@ -90,7 +87,7 @@ char* tgetstr(const char* id, char** area)
         *area += strlen(val) + 1;
         return ret;
     }
-    fprintf(stderr, "tgetstr: missing cap id='%s'\n", id);
+    warnln_if(TERMCAP_DEBUG, "tgetstr: missing cap id='{}'", id);
     return nullptr;
 }
 
@@ -98,8 +95,7 @@ char* tgetstr(const char* id, char** area)
 
 int tgetflag([[maybe_unused]] const char* id)
 {
-    if constexpr (TERMCAP_DEBUG)
-        fprintf(stderr, "tgetflag: '%s'\n", id);
+    warnln_if(TERMCAP_DEBUG, "tgetflag: '{}'", id);
     auto it = caps->find(id);
     if (it != caps->end())
         return 1;
@@ -108,8 +104,7 @@ int tgetflag([[maybe_unused]] const char* id)
 
 int tgetnum(const char* id)
 {
-    if constexpr (TERMCAP_DEBUG)
-        fprintf(stderr, "tgetnum: '%s'\n", id);
+    warnln_if(TERMCAP_DEBUG, "tgetnum: '{}'", id);
     auto it = caps->find(id);
     if (it != caps->end())
         return atoi((*it).value);