Changeset 647 for trunk/libs/mini-libc/stdio.c

Timestamp:

Oct 22, 2019, 1:48:51 PM (4 years ago)

Author:

alain

Message:

...miscelaneous...

File:

• trunk/libs/mini-libc/stdio.c (modified) (3 diffs)

trunk/libs/mini-libc/stdio.c

@@ -412 +412 @@
 
     // compute nbytes
-    unsigned int nbytes = size * nitems;
+    int nbytes = size * nitems;
 
     if( hal_user_syscall( SYS_READ,
@@ -435 +435 @@
 
     // compute nbytes
-    unsigned int nbytes = size * nitems;
+    int nbytes = size * nitems;
 
     if( hal_user_syscall( SYS_WRITE,
@@ -444 +444 @@
 
 }  // end fwrite() 
+
+//////////////////////////////////////////
+unsigned int fseek( FILE         * stream,
+                    unsigned int   offset,
+                    int            whence )
+{
+    // check stream valid
+    if( stream->key != VALID_OPEN_FILE ) return -1;
+
+    // get file descriptor from stream pointer
+    int fd = stream->fd;
+
+    return( hal_user_syscall( SYS_LSEEK,
+                              (reg_t)fd,
+                              (reg_t)offset,
+                              (reg_t)whence, 0 ) );
+}  // end fseek() 
 
 /////////////////////////////////