document mingw linker fix and close associated bug

[debian/gzip] / zip.c

diff --git a/zip.c b/zip.c
index 090fbdfc9feb47be6ee4106df5f410427848acfa..be5c4b0b95267ddfaa67c3f439a87369d2e02f1c 100644 (file)
--- a/zip.c
+++ b/zip.c
@@ -1,11 +1,11 @@
 /* zip.c -- compress files to the gzip or pkzip format
 
-   Copyright (C) 1997, 1998, 1999, 2006, 2007 Free Software Foundation, Inc.
+   Copyright (C) 1997-1999, 2006-2007, 2009-2018 Free Software Foundation, Inc.
    Copyright (C) 1992-1993 Jean-loup Gailly
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -17,23 +17,11 @@
    along with this program; if not, write to the Free Software Foundation,
    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
-#ifdef RCSID
-static char rcsid[] = "$Id: zip.c,v 1.7 2007/03/20 05:09:51 eggert Exp $";
-#endif
-
 #include <config.h>
 #include <ctype.h>
 
 #include "tailor.h"
 #include "gzip.h"
-#include "crypt.h"
-
-#ifdef HAVE_UNISTD_H
-#  include <unistd.h>
-#endif
-#ifdef HAVE_FCNTL_H
-#  include <fcntl.h>
-#endif
 
 local ulg crc;       /* crc on uncompressed file data */
 off_t header_bytes;   /* number of bytes in gzip header */
@@ -63,12 +51,20 @@ int zip(in, out)
     put_byte(DEFLATED);      /* compression method */
 
     if (save_orig_name) {
-       flags |= ORIG_NAME;
+        flags |= ORIG_NAME;
     }
     put_byte(flags);         /* general flags */
-    stamp = (0 <= time_stamp.tv_sec && time_stamp.tv_sec <= 0xffffffff
-            ? (ulg) time_stamp.tv_sec
-            : (ulg) 0);
+    if (time_stamp.tv_nsec < 0)
+      stamp = 0;
+    else if (0 < time_stamp.tv_sec && time_stamp.tv_sec <= 0xffffffff)
+      stamp = time_stamp.tv_sec;
+    else
+      {
+        /* It's intended that timestamp 0 generates this warning,
+           since gzip format reserves 0 for something else.  */
+        warning ("file timestamp out of range for gzip format");
+        stamp = 0;
+      }
     put_long (stamp);
 
     /* Write deflated file to zip file */
@@ -82,29 +78,29 @@ int zip(in, out)
     put_byte(OS_CODE);            /* OS identifier */
 
     if (save_orig_name) {
-       char *p = gzip_base_name (ifname); /* Don't save the directory part. */
-       do {
-           put_char(*p);
-       } while (*p++);
+        char *p = gzip_base_name (ifname); /* Don't save the directory part. */
+        do {
+            put_byte (*p);
+        } while (*p++);
     }
     header_bytes = (off_t)outcnt;
 
     (void)deflate();
 
-#if !defined(NO_SIZE_CHECK) && !defined(RECORD_IO)
-  /* Check input size (but not in VMS -- variable record lengths mess it up)
-   * and not on MSDOS -- diet in TSR mode reports an incorrect file size)
+#ifndef NO_SIZE_CHECK
+  /* Check input size
+   * (but not on MSDOS -- diet in TSR mode reports an incorrect file size)
    */
     if (ifile_size != -1L && bytes_in != ifile_size) {
-       fprintf(stderr, "%s: %s: file size changed while zipping\n",
-               program_name, ifname);
+        fprintf(stderr, "%s: %s: file size changed while zipping\n",
+                program_name, ifname);
     }
 #endif
 
     /* Write the crc and uncompressed size */
     put_long(crc);
     put_long((ulg)bytes_in);
-    header_bytes += 2*sizeof(long);
+    header_bytes += 2*4;
 
     flush_outbuf();
     return OK;
@@ -127,8 +123,7 @@ int file_read(buf, size)
     len = read_buffer (ifd, buf, size);
     if (len == 0) return (int)len;
     if (len == (unsigned)-1) {
-       read_error();
-       return EOF;
+        read_error();
     }
 
     crc = updcrc((uch*)buf, len);