/* System-dependent calls for tar.
- Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
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
static void
stat_to_env (char *name, char type, struct tar_stat_info *st)
{
+ str_to_env ("TAR_VERSION", PACKAGE_VERSION);
chr_to_env ("TAR_FILETYPE", type);
oct_to_env ("TAR_MODE", st->stat.st_mode);
str_to_env ("TAR_FILENAME", name);
pid = -1;
}
+int
+sys_exec_info_script (const char **archive_name, int volume_number)
+{
+ pid_t pid;
+ char *argv[4];
+ char uintbuf[UINTMAX_STRSIZE_BOUND];
+ int p[2];
+
+ xpipe (p);
+ pipe_handler = signal (SIGPIPE, SIG_IGN);
+
+ pid = xfork ();
+
+ if (pid != 0)
+ {
+ /* Master */
+
+ int rc;
+ int status;
+ char *buf;
+ size_t size = 0;
+ FILE *fp;
+
+ xclose (p[PWRITE]);
+ fp = fdopen (p[PREAD], "r");
+ rc = getline (&buf, &size, fp);
+ fclose (fp);
+
+ if (rc > 0 && buf[rc-1] == '\n')
+ buf[--rc] = 0;
+
+ while (waitpid (pid, &status, 0) == -1)
+ if (errno != EINTR)
+ {
+ waitpid_error (info_script_option);
+ return -1;
+ }
+
+ if (WIFEXITED (status))
+ {
+ if (WEXITSTATUS (status) == 0 && rc > 0)
+ *archive_name = buf;
+ else
+ free (buf);
+ return WEXITSTATUS (status);
+ }
+
+ free (buf);
+ return -1;
+ }
+
+ /* Child */
+ setenv ("TAR_VERSION", PACKAGE_VERSION, 1);
+ setenv ("TAR_ARCHIVE", *archive_name, 1);
+ setenv ("TAR_VOLUME", STRINGIFY_BIGINT (volume_number, uintbuf), 1);
+ setenv ("TAR_SUBCOMMAND", subcommand_string (subcommand_option), 1);
+ setenv ("TAR_FORMAT",
+ archive_format_string (current_format == DEFAULT_FORMAT ?
+ archive_format : current_format), 1);
+
+ xclose (p[PREAD]);
+ xdup2 (p[PWRITE], 3);
+
+ argv[0] = "/bin/sh";
+ argv[1] = "-c";
+ argv[2] = (char*) info_script_option;
+ argv[3] = NULL;
+
+ execv (argv[0], argv);
+
+ exec_fatal (info_script_option);
+}
+
+
#endif /* not MSDOS */