2008-01-15 Christian Franke <franke@computer.org>
* util/grub-emu.c: Replace <argp.h> by <getopt.h>.
(argp_program_version): Remove variable.
(argp_program_bug_address): Likewise.
(options): Convert from struct argp_option to struct option.
(struct arguments): Remove.
(parse_opt): Remove.
(usage): New function.
(main): Replace struct args members by simple variables.
Replace argp_parse() by getopt_long().
Add switch to evaluate options.
Add missing "(...)" around root_dev in prefix string.
This commit is contained in:
robertmh
parent
c86f14693a
commit
47bf09a4ed
2 changed files with 99 additions and 74 deletions
14
ChangeLog
14
ChangeLog
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@ -1,3 +1,17 @@
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2008-01-15 Christian Franke <franke@computer.org>
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* util/grub-emu.c: Replace <argp.h> by <getopt.h>.
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(argp_program_version): Remove variable.
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(argp_program_bug_address): Likewise.
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(options): Convert from struct argp_option to struct option.
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(struct arguments): Remove.
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(parse_opt): Remove.
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(usage): New function.
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(main): Replace struct args members by simple variables.
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Replace argp_parse() by getopt_long().
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Add switch to evaluate options.
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Add missing "(...)" around root_dev in prefix string.
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2008-01-14 Robert Millan <rmh@aybabtu.com>
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* kern/powerpc/ieee1275/init.c (grub_exit): Reimplement as a wrapper
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159
util/grub-emu.c
159
util/grub-emu.c
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@ -1,6 +1,6 @@
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2003,2004,2005,2006,2007 Free Software Foundation, Inc.
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* Copyright (C) 2003,2004,2005,2006,2007,2008 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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@ -18,7 +18,7 @@
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <argp.h>
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#include <getopt.h>
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#include <string.h>
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#include <signal.h>
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#include <sys/types.h>
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@ -90,104 +90,115 @@ grub_machine_fini (void)
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}
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const char *argp_program_version = PACKAGE_STRING;
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const char *argp_program_bug_address = PACKAGE_BUGREPORT;
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static char doc[] = "GRUB emulator";
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static struct option options[] =
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{
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{"root-device", required_argument, 0, 'r'},
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{"device-map", required_argument, 0, 'm'},
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{"directory", required_argument, 0, 'd'},
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{"hold", optional_argument, 0, 'H'},
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{"help", no_argument, 0, 'h'},
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{"version", no_argument, 0, 'V'},
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{"verbose", no_argument, 0, 'v'},
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{ 0, 0, 0, 0 }
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};
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static struct argp_option options[] = {
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{"root-device", 'r', "DEV", 0, "use DEV as the root device [default=guessed]", 0},
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{"device-map", 'm', "FILE", 0, "use FILE as the device map", 0},
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{"directory", 'd', "DIR", 0, "use GRUB files in the directory DIR", 0},
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{"verbose", 'v', 0 , 0, "print verbose messages", 0},
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{"hold", 'H', "SECONDS", OPTION_ARG_OPTIONAL, "wait until a debugger will attach", 0},
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{ 0, 0, 0, 0, 0, 0 }
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};
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struct arguments
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static int
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usage (int status)
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{
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char *root_dev;
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char *dev_map;
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char *dir;
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int hold;
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};
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static error_t
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parse_opt (int key, char *arg, struct argp_state *state)
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{
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struct arguments *args = state->input;
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switch (key)
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{
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case 'r':
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args->root_dev = arg;
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break;
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case 'd':
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args->dir = arg;
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break;
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case 'm':
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args->dev_map = arg;
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break;
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case 'v':
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verbosity++;
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break;
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case 'H':
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args->hold = arg ? atoi (arg) : -1;
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break;
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case ARGP_KEY_END:
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break;
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default:
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return ARGP_ERR_UNKNOWN;
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}
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return 0;
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if (status)
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fprintf (stderr,
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"Try ``grub-emu --help'' for more information.\n");
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else
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printf (
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"Usage: grub-emu [OPTION]...\n"
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"\n"
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"GRUB emulator.\n"
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"\n"
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" -r, --root-device=DEV use DEV as the root device [default=guessed]\n"
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" -m, --device-map=FILE use FILE as the device map [default=%s]\n"
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" -d, --directory=DIR use GRUB files in the directory DIR [default=%s]\n"
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" -v, --verbose print verbose messages\n"
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" -H, --hold[=SECONDS] wait until a debugger will attach\n"
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" -h, --help display this message and exit\n"
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" -V, --version print version information and exit\n"
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"\n"
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"Report bugs to <%s>.\n", DEFAULT_DEVICE_MAP, DEFAULT_DIRECTORY, PACKAGE_BUGREPORT);
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return status;
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}
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static struct argp argp = {options, parse_opt, 0, doc, 0, 0, 0};
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int
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main (int argc, char *argv[])
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{
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char *dir;
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struct arguments args =
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{
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.dir = DEFAULT_DIRECTORY,
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.dev_map = DEFAULT_DEVICE_MAP,
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.hold = 0
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};
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char *root_dev = 0;
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char *dir = DEFAULT_DIRECTORY;
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char *dev_map = DEFAULT_DEVICE_MAP;
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volatile int hold = 0;
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int opt;
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progname = "grub-emu";
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argp_parse (&argp, argc, argv, 0, 0, &args);
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while ((opt = getopt_long (argc, argv, "r:d:m:vH:hV", options, 0)) != -1)
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switch (opt)
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{
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case 'r':
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root_dev = optarg;
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break;
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case 'd':
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dir = optarg;
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break;
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case 'm':
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dev_map = optarg;
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break;
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case 'v':
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verbosity++;
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break;
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case 'H':
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hold = (optarg ? atoi (optarg) : -1);
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break;
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case 'h':
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return usage (0);
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case 'V':
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printf ("%s (%s) %s\n", progname, PACKAGE_NAME, PACKAGE_VERSION);
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return 0;
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default:
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return usage (1);
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}
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if (optind < argc)
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{
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fprintf (stderr, "Unknown extra argument `%s'.\n", argv[optind]);
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return usage (1);
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}
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/* Wait until the ARGS.HOLD variable is cleared by an attached debugger. */
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if (args.hold && verbosity > 0)
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if (hold && verbosity > 0)
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printf ("Run \"gdb %s %d\", and set ARGS.HOLD to zero.\n",
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progname, (int) getpid ());
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while (args.hold)
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while (hold)
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{
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if (args.hold > 0)
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args.hold--;
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if (hold > 0)
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hold--;
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sleep (1);
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}
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/* XXX: This is a bit unportable. */
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grub_util_biosdisk_init (args.dev_map);
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grub_util_biosdisk_init (dev_map);
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grub_hostfs_init ();
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grub_init_all ();
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/* Make sure that there is a root device. */
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if (! args.root_dev)
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if (! root_dev)
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{
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char *device_name = grub_guess_root_device (args.dir ? : DEFAULT_DIRECTORY);
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char *device_name = grub_guess_root_device (dir);
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if (! device_name)
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grub_util_error ("cannot find a device for %s.\n", args.dir ? : DEFAULT_DIRECTORY);
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grub_util_error ("cannot find a device for %s.\n", dir);
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args.root_dev = grub_util_get_grub_dev (device_name);
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if (! args.root_dev)
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root_dev = grub_util_get_grub_dev (device_name);
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if (! root_dev)
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{
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grub_util_info ("guessing the root device failed, because of `%s'",
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grub_errmsg);
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@ -195,9 +206,9 @@ main (int argc, char *argv[])
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}
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}
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dir = grub_get_prefix (args.dir ? : DEFAULT_DIRECTORY);
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prefix = xmalloc (strlen (args.root_dev) + strlen (dir) + 1);
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sprintf (prefix, "%s%s", args.root_dev, dir);
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dir = grub_get_prefix (dir);
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prefix = xmalloc (strlen (root_dev) + 2 + strlen (dir) + 1);
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sprintf (prefix, "(%s)%s", root_dev, dir);
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free (dir);
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/* Start GRUB! */
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