X-Git-Url: https://pd.if.org/git/?p=pdclib;a=blobdiff_plain;f=functions%2Fstdio%2Ffputs.c;h=9bd0b5c5d6da50317412330b214d68217498f2b3;hp=716fef838b5ebddaba629c760c52e777f268eadb;hb=da0f3f353d417fed71f358a48d5d5394145e460d;hpb=13ee02fa27a739d9d602f801126eadcfbfeab8a8

diff --git a/functions/stdio/fputs.c b/functions/stdio/fputs.c
index 716fef8..9bd0b5c 100644
--- a/functions/stdio/fputs.c
+++ b/functions/stdio/fputs.c
@@ -1,5 +1,3 @@
-/* $Id$ */
-
 /* fputs( const char *, FILE * )
 
    This file is part of the Public Domain C Library (PDCLib).
@@ -9,40 +7,70 @@
 #include <stdio.h>
 
 #ifndef REGTEST
+#include "_PDCLIB_io.h"
 
-int fputs( const char * _PDCLIB_restrict s, struct _PDCLIB_file_t * _PDCLIB_restrict stream )
+int _PDCLIB_fputs_unlocked( const char * _PDCLIB_restrict s, 
+                    FILE * _PDCLIB_restrict stream )
 {
-    /* FIXME: This is devoid of any error checking (file writeable? r/w
-       constraints honored?)
-    */
-    /* FIXME: Proper buffering handling. */
-    while ( stream->bufidx < stream->bufsize )
+    if ( _PDCLIB_prepwrite( stream ) == EOF )
     {
-        if ( ( stream->buffer[stream->bufidx++] = *(s++) ) == '\0' )
-        {
-            break;
-        }
+        return EOF;
     }
-    fflush( stream );
-    if ( *(s-1) != '\0' )
+    while ( *s != '\0' )
     {
-        return fputs( s, stream );
+        /* Unbuffered and line buffered streams get flushed when fputs() does
+           write the terminating end-of-line. All streams get flushed if the
+           buffer runs full.
+        */
+        stream->buffer[ stream->bufidx++ ] = *s;
+        if ( ( stream->bufidx == stream->bufsize ) ||
+             ( ( stream->status & _IOLBF ) && *s == '\n' )
+           )
+        {
+            if ( _PDCLIB_flushbuffer( stream ) == EOF )
+            {
+                return EOF;
+            }
+        }
+        ++s;
     }
-    else
+    if ( stream->status & _IONBF )
     {
-        return 1;
+        if ( _PDCLIB_flushbuffer( stream ) == EOF )
+        {
+            return EOF;
+        }
     }
+    return 0;
 }
 
-#endif
+int fputs( const char * _PDCLIB_restrict s,
+           FILE * _PDCLIB_restrict stream )
+{
+    _PDCLIB_flockfile( stream );
+    int r = _PDCLIB_fputs_unlocked( s, stream );
+    _PDCLIB_funlockfile( stream );
+    return r;
+}
 
+#endif
 #ifdef TEST
-#include <_PDCLIB_test.h>
+#include "_PDCLIB_test.h"
 
 int main( void )
 {
-    TESTCASE( NO_TESTDRIVER );
+    char const * const message = "SUCCESS testing fputs()";
+    FILE * fh;
+    TESTCASE( ( fh = tmpfile() ) != NULL );
+    TESTCASE( fputs( message, fh ) >= 0 );
+    rewind( fh );
+    for ( size_t i = 0; i < 23; ++i )
+    {
+        TESTCASE( fgetc( fh ) == message[i] );
+    }
+    TESTCASE( fclose( fh ) == 0 );
     return TEST_RESULTS;
 }
 
 #endif
+