"gztell()" is also affected by the libz mess on platforms where "off_t"

is bigger than a "long"; this is itojun's fix for that, turning
"file_tell()" into a wrapper function in "file_wrappers.c", just like
"file_seek()".

svn path=/trunk/; revision=1554

2 files changed, 11 insertions, 5 deletions

diff --git a/wiretap/file_wrappers.c b/wiretap/file_wrappers.c
index 83aa02ea7f..48d7558421 100644
--- a/wiretap/file_wrappers.c
+++ b/wiretap/file_wrappers.c
@@ -1,6 +1,6 @@
 /* file_wrappers.c
  *
- * $Id: file_wrappers.c,v 1.3 2000/01/22 06:22:37 guy Exp $
+ * $Id: file_wrappers.c,v 1.4 2000/01/25 04:49:55 guy Exp $
  *
  * Wiretap Library
  * Copyright (c) 1998 by Gilbert Ramirez <gram@xiexie.org>
@@ -84,10 +84,16 @@
 int
 file_seek(void *stream, long offset, int whence)
 {
-	return gzseek(stream, offset, whence);
+	return gzseek(stream, (z_off_t)offset, whence);
+}
+
+long
+file_tell(void *stream)
+{
+	return (long)gztell(stream);
 }
 #else /* HAVE_LIBZ */
-int
+long
 file_seek(FILE *stream, long offset, int whence)
 {
 	return fseek(stream, offset, whence);
diff --git a/wiretap/file_wrappers.h b/wiretap/file_wrappers.h
index 7869162731..cfda764a07 100644
--- a/wiretap/file_wrappers.h
+++ b/wiretap/file_wrappers.h
@@ -1,6 +1,6 @@
 /* file_wrappers.h
  *
- * $Id: file_wrappers.h,v 1.2 2000/01/22 06:22:37 guy Exp $
+ * $Id: file_wrappers.h,v 1.3 2000/01/25 04:49:55 guy Exp $
  *
  * Wiretap Library
  * Copyright (c) 1998 by Gilbert Ramirez <gram@xiexie.org>
@@ -31,7 +31,7 @@ extern int file_seek(void *stream, long offset, int whence);
 #define file_read(buf, bsize, count, file) gzread((file),(buf),((count)*(bsize)))
 #define file_write(buf, bsize, count, file) gzwrite((file),(buf),((count)*(bsize)))
 #define file_close gzclose
-#define file_tell gztell
+extern long file_tell(void *stream);
 #define file_getc gzgetc
 #define file_gets(buf, len, file) gzgets((file), (buf), (len))
 extern int file_error(void *fh);