Thanks to Antonio

Propagate gz_open() errors to caller function.

This is not enough, it is still needed to check deb_extract return value
everywhere in libopkg/pkg_extract.c

Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
git-svn-id: http://opkg.googlecode.com/svn/trunk@205 e8e0d7a0-c8d9-11dd-a880-a1081c7ac358

diff --git a/libbb/unarchive.c b/libbb/unarchive.c
index 84a3b6a694fe0b73efc2b281908f5854bd943820..38528a35a2a6bd91856e6f41ba2636a943bf5cf3 100644 (file)
--- a/libbb/unarchive.c
+++ b/libbb/unarchive.c
@@ -754,6 +754,10 @@ char *deb_extract(const char *package_filename, FILE *out_stream,
                        if (strcmp(ared_file, ar_header->name) == 0) {
                                /* open a stream of decompressed data */
                                uncompressed_stream = gz_open(deb_stream, &gunzip_pid);
+                               if (uncompressed_stream == NULL) {
+                                       return(NULL);
+                               }
+
                                archive_offset = 0;
                                output_buffer = unarchive(uncompressed_stream, out_stream, get_header_tar, free_header_tar, extract_function, prefix, file_list);
                        }
@@ -774,6 +778,9 @@ char *deb_extract(const char *package_filename, FILE *out_stream,
                archive_offset = 0;
                fseek(deb_stream, 0, SEEK_SET);
                unzipped_opkg_stream = gz_open(deb_stream, &unzipped_opkg_pid);
+               if (unzipped_opkg_stream == NULL) {
+                       return(NULL);
+               }
                
                 /*fprintf(stderr, __FUNCTION__ ": processing opkg %s -- ared_file=%s\n", package_filename, ared_file);*/
                /* walk through outer tar file to find ared_file */
@@ -784,6 +791,9 @@ char *deb_extract(const char *package_filename, FILE *out_stream,
                        if (strcmp(ared_file, tar_header->name+name_offset) == 0) {
                                /* open a stream of decompressed data */
                                uncompressed_stream = gz_open(unzipped_opkg_stream, &gunzip_pid);
+                               if (uncompressed_stream == NULL) {
+                                       return(NULL);
+                               }
                                archive_offset = 0;
                                 /*fprintf(stderr, __FUNCTION__ ":%d: here -- found file\n", __LINE__);*/
                                output_buffer = unarchive(uncompressed_stream,