diff options
| -rw-r--r-- | libdiskfs/opts-runtime-parse.c | 28 | ||||
| -rw-r--r-- | libdiskfs/opts-set.c | 94 | ||||
| -rw-r--r-- | libdiskfs/opts-std-startup.c | 77 |
3 files changed, 199 insertions, 0 deletions
diff --git a/libdiskfs/opts-runtime-parse.c b/libdiskfs/opts-runtime-parse.c new file mode 100644 index 00000000..d46d3175 --- /dev/null +++ b/libdiskfs/opts-runtime-parse.c @@ -0,0 +1,28 @@ +/* A default diskfs_parse_runtime_options routine + + Copyright (C) 1995 Free Software Foundation, Inc. + + This file is part of the GNU Hurd. + + The GNU Hurd 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) any later version. + + The GNU Hurd 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include "priv.h" + +error_t +diskfs_parse_runtime_options (int argc, char **argv, + struct options *standard_options) +{ + return options_parse (standard_options, argc, argv, 0, 0); +} diff --git a/libdiskfs/opts-set.c b/libdiskfs/opts-set.c new file mode 100644 index 00000000..77929e7e --- /dev/null +++ b/libdiskfs/opts-set.c @@ -0,0 +1,94 @@ +/* Parse run-time options + + Copyright (C) 1995 Free Software Foundation, Inc. + + This file is part of the GNU Hurd. + + The GNU Hurd 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) any later version. + + The GNU Hurd 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include "priv.h" + +#define SHORT_OPTIONS "rwsnm" + +static struct option long_options[] = +{ + {"readonly", no_argument, 0, 'r'}, + {"writable", no_argument, 0, 'w'}, + {"sync", optional_argument, 0, 's'}, + {"nosync", no_argument, 0, 'n'}, + {"remount", no_argument, 0, 'm'}, + {0, 0, 0, 0} +}; + +error_t +diskfs_set_options (int argc, char **argv) +{ + int readonly = diskfs_readonly; + int sync = diskfs_synchronous; + int sync_interval = -1; + error_t parse_opt (int opt, char *arg) + { + switch (opt) + { + case 'r': + readonly = 1; break; + case 'w': + readonly = 0; break; + case 'n': + sync_interval = 0; sync = 0; break; + case 's': + if (optarg) + sync_interval = atoi (arg); + else + sync = 1; + default: + return EINVAL; + } + return 0; + } + struct options options = { SHORT_OPTIONS, long_options, parse_opt, 0 }; + + /* Call the user option parsing routine, giving it our set of options to do + with as it pleases. */ + error_t err = diskfs_parse_runtime_options (argc, argv, &options); + + if (err) + return err; + + /* Do things in this order: change-read/write, remount, change-sync. */ + + /* Going writable seems easy, but how do we switch to readonly mode? There + might be thread that are past the initial readonly checks which would + fail a !readonly assertion if we just set the variable... */ + if (!readonly) + diskfs_readonly = 0; + + /* Remount... */ + + /* Change sync mode. */ + if (sync) + { + diskfs_synchronous = 1; + diskfs_set_sync_interval (0); /* Don't waste time syncing. */ + } + else + { + diskfs_synchronous = 0; + if (sync_interval >= 0) + diskfs_set_sync_interval (sync_interval); + } + + return 0; +} diff --git a/libdiskfs/opts-std-startup.c b/libdiskfs/opts-std-startup.c new file mode 100644 index 00000000..699d516d --- /dev/null +++ b/libdiskfs/opts-std-startup.c @@ -0,0 +1,77 @@ +/* Standard startup-time command line options + + Copyright (C) 1995 Free Software Foundation, Inc. + + Written by Miles Bader <miles@gnu.ai.mit.edu> + + This file is part of the GNU Hurd. + + The GNU Hurd 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) any later version. + + The GNU Hurd 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include <stdio.h> +#include <options.h> +#include "priv.h" + +/* ---------------------------------------------------------------- */ + +#define STD_SHORT_OPTS "rwsnV" + +static struct option +std_long_opts[] = +{ + {"readonly", no_argument, 0, 'r'}, + {"writable", no_argument, 0, 'w'}, + {"sync", optional_argument, 0, 's'}, + {"nosync", no_argument, 0, 'n'}, + {"version", no_argument, 0, 'V'}, + {0, 0, 0, 0} +}; + +static error_t +parse_std_startup_opt (int opt, char *arg) +{ + switch (opt) + { + case 'r': + diskfs_readonly = 1; break; + case 'w': + diskfs_readonly = 0; break; + case 's': + if (arg == NULL) + diskfs_synchronous = 1; + else + diskfs_default_sync_interval = atoi (arg); + break; + case 'n': + diskfs_synchronous = 0; + diskfs_default_sync_interval = 0; + break; + case 'V': + printf("%s %d.%d.%d\n", diskfs_server_name, diskfs_major_version, + diskfs_minor_version, diskfs_edit_version); + exit(0); + default: + return EINVAL; + } + + return 0; +} + +/* This may be used with options_parse to parse standard diskfs startup + options, possible chained onto the end of a user options structure. */ +static struct options std_startup_opts = + { STD_SHORT_OPTS, std_long_opts, parse_std_startup_opt, 0 }; + +struct options *diskfs_standard_startup_options = &std_startup_opts; |