PDCLIB-7: When fseek is called with SEEK_CUR, internally calculate the new offset...

[pdclib.old] / functions / stdio / fseek.c

diff --git a/functions/stdio/fseek.c b/functions/stdio/fseek.c
index ab6679bfb7ae590336b16abcb722ecd66971bfc6..18c38c324ecc7dbacaa8fe734550360f28a4f0f9 100644 (file)
--- a/functions/stdio/fseek.c
+++ b/functions/stdio/fseek.c
@@ -12,8 +12,9 @@
 
 #include <_PDCLIB_glue.h>
 
-int fseek( struct _PDCLIB_file_t * stream, long offset, int whence )
+int fseek( struct _PDCLIB_file_t * stream, long loffset, int whence )
 {
+    _PDCLIB_int64_t offset = loffset;
     if ( stream->status & _PDCLIB_FWRITE )
     {
         if ( _PDCLIB_flushbuffer( stream ) == EOF )
@@ -26,6 +27,13 @@ int fseek( struct _PDCLIB_file_t * stream, long offset, int whence )
     {
         stream->status &= ~ ( _PDCLIB_FREAD | _PDCLIB_FWRITE );
     }
+
+    if ( whence == SEEK_CUR )
+    {
+        whence  = SEEK_SET;
+        offset += stream->pos.offset;
+    }
+
     return ( _PDCLIB_seek( stream, offset, whence ) != EOF ) ? 0 : EOF;
 }