Intermediate stdio work.

[pdclib] / functions / stdio / fputs.c

diff --git a/functions/stdio/fputs.c b/functions/stdio/fputs.c
index e7a04f7d670a51341a114516f4be69bc87a363ff..94af1ad6a9154dd88b36a4bbbdf7bb75f90c8975 100644 (file)
--- a/functions/stdio/fputs.c
+++ b/functions/stdio/fputs.c
@@ -1,21 +1,65 @@
-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
-
-int fputs( const char * restrict s, FILE * restrict stream ) { /* TODO */ };
-
-/* PDPC code - unreviewed
-#ifndef __MVS__
-int fputs(const char *s, FILE *stream)
+/* $Id$ */
+
+/* fputs( const char *, FILE * )
+
+   This file is part of the Public Domain C Library (PDCLib).
+   Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#include <stdio.h>
+
+#ifndef REGTEST
+
+int fputs( const char * _PDCLIB_restrict s, struct _PDCLIB_file_t * _PDCLIB_restrict stream )
 {
-    size_t len;
+    /* FIXME: This is devoid of any error checking (file writeable? r/w
+       constraints honored?)
+    */
+    /* FIXME: Proper buffering handling. */
+    char written;
+    while ( stream->bufidx < stream->bufsize )
+    {
+        written = ( stream->buffer[stream->bufidx++] = *(s++) );
+        if ( ( written == '\0' ) ||
+             ( ( stream->status & _IOLBF ) && ( written == '\n' ) ) ||
+             ( stream->status & _IONBF ) )
+        {
+            break;
+        }
+    }
+    fflush( stream );
+    if ( written != '\0' )
+    {
+        /* FIXME: For _IONBF, this recurses once per character - unacceptable. */
+        return fputs( s, stream );
+    }
+    else
+    {
+        return 1;
+    }
+}
 
-    len = strlen(s);
-    fwrite(s, len, 1, stream);
-    return (0);
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+#include <string.h>
+
+int main( void )
+{
+    FILE * fh;
+    char buffer[100];
+    char text[] = "SUCCESS testing fputs().";
+    TESTCASE( ( fh = fopen( "testfile", "w" ) ) != NULL );
+    TESTCASE( fputs( text, fh ) != EOF );
+    TESTCASE( fclose( fh ) == 0 );
+    TESTCASE( ( fh = fopen( "testfile", "r" ) ) != NULL );
+    TESTCASE( fread( buffer, 1, strlen( text ), fh ) == strlen( text ) );
+    TESTCASE( memcmp( buffer, text, strlen( text ) ) == 0 );
+    TESTCASE( fclose( fh ) == 0 );
+    TESTCASE( remove( "testfile" ) == 0 );
+    return TEST_RESULTS;
 }
+
 #endif
-*/