X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdio%2Ffgetc.c;h=56e96f5eca481fbdf88136fe42ffa5c03d29dcf5;hb=0a419d48138f1411d6e3e50a367b9ece5a2cf893;hp=1a90eb95dadea9780b28a024c6fb94c9bad99570;hpb=42cab9e71b49fcda5f225ea0debddce0d1123674;p=pdclib

diff --git a/functions/stdio/fgetc.c b/functions/stdio/fgetc.c
index 1a90eb9..56e96f5 100644
--- a/functions/stdio/fgetc.c
+++ b/functions/stdio/fgetc.c
@@ -8,21 +8,29 @@
 
 #include <stdio.h>
 
-#include <_PDCLIB_glue.h>
-
 #ifndef REGTEST
+#include <_PDCLIB_io.h>
 
-int fgetc( struct _PDCLIB_file_t * stream )
+int fgetc_unlocked( FILE * stream )
 {
     if ( _PDCLIB_prepread( stream ) == EOF )
     {
         return EOF;
     }
-    if ( stream->ungetidx > 0 )
-    {
-        return stream->ungetbuf[ stream->ungetidx-- ];
-    }
-    return stream->buffer[stream->bufidx++];
+
+    char c;
+
+    size_t n = _PDCLIB_getchars( &c, 1, EOF, stream );
+
+    return n == 0 ? EOF : (unsigned char) c;
+}
+
+int fgetc( FILE * stream )
+{
+    flockfile( stream );
+    int c = fgetc_unlocked( stream );
+    funlockfile( stream );
+    return c;
 }
 
 #endif