3 files changed, 6 insertions, 6 deletions
diff --git a/sal/osl/unx/pipe.cxx b/sal/osl/unx/pipe.cxx
index c38ab152dada..10cb87770128 100644
--- a/sal/osl/unx/pipe.cxx
+++ b/sal/osl/unx/pipe.cxx
@@ -392,7 +392,7 @@ void SAL_CALL osl_closePipe(oslPipe pPipe)
         SAL_WARN("sal.osl.pipe", "close() failed: " << UnixErrnoString(errno));
 
     /* remove filesystem entry */
-    if (strlen(pPipe->m_Name) > 0)
+    if (pPipe->m_Name[0] != '\0')
         unlink(pPipe->m_Name);
 
     pPipe->m_bClosed = true;
@@ -407,7 +407,7 @@ oslPipe SAL_CALL osl_acceptPipe(oslPipe pPipe)
     if (!pPipe)
         return nullptr;
 
-    assert(strlen(pPipe->m_Name) > 0);  // you cannot have an empty pipe name
+    assert(pPipe->m_Name[0] != '\0');  // you cannot have an empty pipe name
 
 #if defined(CLOSESOCKET_DOESNT_WAKE_UP_ACCEPT)
     pPipe->m_bIsAccepting = true;
diff --git a/sal/osl/unx/security.cxx b/sal/osl/unx/security.cxx
index 29897d8e75de..982b7c940c2f 100644
--- a/sal/osl/unx/security.cxx
+++ b/sal/osl/unx/security.cxx
@@ -320,7 +320,7 @@ static bool osl_psz_getHomeDir(oslSecurity Security, OString* pszDirectory)
         pStr = getenv("HOME");
 #endif
 
-        if (pStr != nullptr && strlen(pStr) > 0 && access(pStr, 0) == 0)
+        if (pStr != nullptr && pStr[0] != '\0' && access(pStr, 0) == 0)
         {
             auto const len = std::strlen(pStr);
             if (len > sal_uInt32(std::numeric_limits<sal_Int32>::max())) {
@@ -389,7 +389,7 @@ static bool osl_psz_getConfigDir(oslSecurity Security, OString* pszDirectory)
 
     sal_Char *pStr = getenv("XDG_CONFIG_HOME");
 
-    if (pStr == nullptr || strlen(pStr) == 0 || access(pStr, 0) != 0)
+    if (pStr == nullptr || pStr[0] == '\0' || access(pStr, 0) != 0)
     {
         // a default equal to $HOME/.config should be used.
         OString home;
diff --git a/sal/osl/unx/socket.cxx b/sal/osl/unx/socket.cxx
index dd84afc0ccc4..0765daaef2e7 100644
--- a/sal/osl/unx/socket.cxx
+++ b/sal/osl/unx/socket.cxx
@@ -903,7 +903,7 @@ oslSocketResult osl_psz_getLocalHostname (
 {
     static sal_Char LocalHostname[256] = "";
 
-    if (strlen(LocalHostname) == 0)
+    if (LocalHostname[0] == '\0')
     {
 
 #ifdef SYSV
@@ -940,7 +940,7 @@ oslSocketResult osl_psz_getLocalHostname (
         }
     }
 
-    if (strlen(LocalHostname) > 0)
+    if (LocalHostname[0] != '\0')
     {
         strncpy(pBuffer, LocalHostname, nBufLen);
         pBuffer[nBufLen - 1] = '\0';