X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdio%2Ffsetpos.c;h=ed3c0a8cfc0372ffbc40fc97e403fbe9a020793a;hb=0a419d48138f1411d6e3e50a367b9ece5a2cf893;hp=e40be0b948cb1a36bc38d9388081349e06f8e2a2;hpb=e5112b619d1aae8ffc439389cfcbd3b2b4bd2454;p=pdclib

diff --git a/functions/stdio/fsetpos.c b/functions/stdio/fsetpos.c
index e40be0b..ed3c0a8 100644
--- a/functions/stdio/fsetpos.c
+++ b/functions/stdio/fsetpos.c
@@ -9,13 +9,36 @@
 #include <stdio.h>
 
 #ifndef REGTEST
+#include <_PDCLIB_io.h>
 
-int fsetpos( struct _PDCLIB_file_t * stream, const _PDCLIB_fpos_t * pos )
+int fsetpos_unlocked( FILE * stream, 
+                      const _PDCLIB_fpos_t * pos )
 {
-    /* TODO: Implement. */
+    if ( stream->status & _PDCLIB_FWRITE )
+    {
+        if ( _PDCLIB_flushbuffer( stream ) == EOF )
+        {
+            return EOF;
+        }
+    }
+    if ( _PDCLIB_seek( stream, pos->offset, SEEK_SET ) == EOF )
+    {
+        return EOF;
+    }
+    stream->pos.mbs = pos->mbs;
+    
     return 0;
 }
 
+int fsetpos( FILE * stream, 
+             const _PDCLIB_fpos_t * pos )
+{
+    flockfile( stream );
+    int res = fsetpos_unlocked( stream, pos );
+    funlockfile( stream );
+    return res;
+}
+
 #endif
 
 #ifdef TEST
@@ -23,7 +46,7 @@ int fsetpos( struct _PDCLIB_file_t * stream, const _PDCLIB_fpos_t * pos )
 
 int main( void )
 {
-    TESTCASE( NO_TESTDRIVER );
+    /* fsetpos() tested together with fsetpos(). */
     return TEST_RESULTS;
 }