use user's shell instead of hardwired "/bin/sh" (android needs this)

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

2 files changed, 7 insertions, 2 deletions

diff --git a/archival/libarchive/data_extract_to_command.c b/archival/libarchive/data_extract_to_command.c
index 2bbab7641..0e977049d 100644
--- a/archival/libarchive/data_extract_to_command.c
+++ b/archival/libarchive/data_extract_to_command.c
@@ -99,8 +99,12 @@ void FAST_FUNC data_extract_to_command(archive_handle_t *archive_handle)
                         close(p[1]);
                         xdup2(p[0], STDIN_FILENO);
                         signal(SIGPIPE, SIG_DFL);
-                        execl(DEFAULT_SHELL, DEFAULT_SHELL_SHORT_NAME, "-c", archive_handle->tar__to_command, NULL);
-                        bb_perror_msg_and_die("can't execute '%s'", DEFAULT_SHELL);
+                        execl(archive_handle->tar__to_command_shell,
+                                archive_handle->tar__to_command_shell,
+                                "-c",
+                                archive_handle->tar__to_command,
+                                NULL);
+                        bb_perror_msg_and_die("can't execute '%s'", archive_handle->tar__to_command_shell);
                 }
                 close(p[0]);
                 /* Our caller is expected to do signal(SIGPIPE, SIG_IGN)
diff --git a/archival/tar.c b/archival/tar.c
index d43c8dee3..01b83d5e2 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -970,6 +970,7 @@ int tar_main(int argc UNUSED_PARAM, char **argv)
                 putenv((char*)"TAR_FILETYPE=f");
                 signal(SIGPIPE, SIG_IGN);
                 tar_handle->action_data = data_extract_to_command;
+                IF_FEATURE_TAR_TO_COMMAND(tar_handle->tar__to_command_shell = xstrdup(get_shell_name());)
         }
 
         if (opt & OPT_KEEP_OLD)