X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdio%2Ffgetc.c;h=61f52fdd4208a84a3000a1e937619d92191b85b7;hb=29387e76cd5cd340fe7d811dc9830931d3d0ec9b;hp=5837a74178f596362053de7dfadff5e924baa960;hpb=7e1ea4998255982bbf93539e941991bcf40d2813;p=pdclib

diff --git a/functions/stdio/fgetc.c b/functions/stdio/fgetc.c
index 5837a74..61f52fd 100644
--- a/functions/stdio/fgetc.c
+++ b/functions/stdio/fgetc.c
@@ -8,21 +8,30 @@
 
 #include <stdio.h>
 
-#include <_PDCLIB_glue.h>
-
 #ifndef REGTEST
 
-int fgetc( struct _PDCLIB_file_t * stream )
+#include <_PDCLIB_glue.h>
+
+int fgetc_unlocked( struct _PDCLIB_file_t * 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( struct _PDCLIB_file_t * stream )
+{
+    flockfile( stream );
+    int c = fgetc_unlocked( stream );
+    funlockfile( stream );
+    return c;
 }
 
 #endif