unzip applet by Laurence Anderson

[oweals/busybox.git] / libbb / gz_open.c

diff --git a/libbb/gz_open.c b/libbb/gz_open.c
index 19ec0a066fded86f9eb7605f592898881ca59e0c..dbaf3bb023bceebd90694a4b7282fea0241a9692 100644 (file)
--- a/libbb/gz_open.c
+++ b/libbb/gz_open.c
@@ -1,3 +1,26 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) many different people.  If you wrote this, please
+ * acknowledge your work.
+ *
+ * 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 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <signal.h>
@@ -6,17 +29,17 @@
 #include <unistd.h>
 #include "libbb.h"
 
-extern int gz_open(FILE *compressed_file, int *pid)
+extern FILE *gz_open(FILE *compressed_file, int *pid)
 {
        int unzip_pipe[2];
 
        if (pipe(unzip_pipe)!=0) {
                error_msg("pipe error");
-               return(EXIT_FAILURE);
+               return(NULL);
        }
        if ((*pid = fork()) == -1) {
-               error_msg("fork failured");
-               return(EXIT_FAILURE);
+               error_msg("fork failed");
+               return(NULL);
        }
        if (*pid==0) {
                /* child process */
@@ -27,7 +50,9 @@ extern int gz_open(FILE *compressed_file, int *pid)
                close(unzip_pipe[1]);
                exit(EXIT_SUCCESS);
        }
-       
        close(unzip_pipe[1]);
-       return(unzip_pipe[0]);
-}
\ No newline at end of file
+       if (unzip_pipe[0] == -1) {
+               error_msg("gzip stream init failed");
+       }
+       return(fdopen(unzip_pipe[0], "r"));
+}