diff options
Diffstat (limited to 'util/grub-syslinux2cfg.c')
| -rw-r--r-- | util/grub-syslinux2cfg.c | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/util/grub-syslinux2cfg.c b/util/grub-syslinux2cfg.c new file mode 100644 index 0000000..85fa0da --- /dev/null +++ b/util/grub-syslinux2cfg.c @@ -0,0 +1,246 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2010,2012,2013 Free Software Foundation, Inc. + * + * GRUB 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 3 of the License, or + * (at your option) any later version. + * + * GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + + +#include <config.h> + +#include <grub/util/misc.h> +#include <grub/i18n.h> +#include <grub/term.h> +#include <grub/font.h> +#include <grub/emu/hostdisk.h> + +#define _GNU_SOURCE 1 + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <errno.h> +#include <grub/err.h> +#include <grub/types.h> +#include <grub/dl.h> +#include <grub/misc.h> +#include <grub/mm.h> +#include <grub/syslinux_parse.h> + +#pragma GCC diagnostic ignored "-Wmissing-prototypes" +#pragma GCC diagnostic ignored "-Wmissing-declarations" +#include <argp.h> +#pragma GCC diagnostic error "-Wmissing-prototypes" +#pragma GCC diagnostic error "-Wmissing-declarations" + +#include "progname.h" + +struct arguments +{ + char *input; + char *root; + char *target_root; + char *cwd; + char *target_cwd; + char *output; + int verbosity; + grub_syslinux_flavour_t flav; +}; + +static struct argp_option options[] = { + {"target-root", 't', N_("DIR"), 0, + N_("root directory as it will be seen on runtime [default=/]."), 0}, + {"root", 'r', N_("DIR"), 0, + N_("root directory of the syslinux disk [default=/]."), 0}, + {"target-cwd", 'T', N_("DIR"), 0, + N_( + "current directory of syslinux as it will be seen on runtime [default is parent directory of input file]." +), 0}, + {"cwd", 'c', N_("DIR"), 0, + N_("current directory of syslinux [default is parent directory of input file]."), 0}, + + {"output", 'o', N_("FILE"), 0, N_("write output to FILE [default=stdout]."), 0}, + {"isolinux", 'i', 0, 0, N_("assume input is an isolinux configuration file."), 0}, + {"pxelinux", 'p', 0, 0, N_("assume input is a pxelinux configuration file."), 0}, + {"syslinux", 's', 0, 0, N_("assume input is a syslinux configuration file."), 0}, + {"verbose", 'v', 0, 0, N_("print verbose messages."), 0}, + { 0, 0, 0, 0, 0, 0 } +}; + +static error_t +argp_parser (int key, char *arg, struct argp_state *state) +{ + /* Get the input argument from argp_parse, which we + know is a pointer to our arguments structure. */ + struct arguments *arguments = state->input; + + switch (key) + { + case 't': + free (arguments->target_root); + arguments->target_root = xstrdup (arg); + break; + + case 'T': + free (arguments->target_cwd); + arguments->target_cwd = xstrdup (arg); + break; + + case 'c': + free (arguments->cwd); + arguments->cwd = xstrdup (arg); + break; + + case 'o': + free (arguments->output); + arguments->output = xstrdup (arg); + break; + + case ARGP_KEY_ARG: + if (!arguments->input) + { + arguments->input = xstrdup (arg); + return 0; + } + return ARGP_ERR_UNKNOWN; + + case 'r': + free (arguments->root); + arguments->root = xstrdup (arg); + return 0; + + case 'i': + arguments->flav = GRUB_SYSLINUX_ISOLINUX; + break; + + case 's': + arguments->flav = GRUB_SYSLINUX_SYSLINUX; + break; + case 'p': + arguments->flav = GRUB_SYSLINUX_PXELINUX; + break; + + case 'v': + arguments->verbosity++; + break; + + default: + return ARGP_ERR_UNKNOWN; + } + + return 0; +} + +static struct argp argp = { + options, argp_parser, N_("FILE"), + N_("Transform syslinux config into GRUB one."), + NULL, NULL, NULL +}; + +int +main (int argc, char *argv[]) +{ + struct arguments arguments; + + grub_util_host_init (&argc, &argv); + + /* Check for options. */ + memset (&arguments, 0, sizeof (struct arguments)); + if (argp_parse (&argp, argc, argv, 0, 0, &arguments) != 0) + { + fprintf (stderr, "%s", _("Error in parsing command line arguments\n")); + exit(1); + } + + if (!arguments.input) + { + fprintf (stderr, "%s", _("Missing arguments\n")); + exit(1); + } + + grub_init_all (); + grub_hostfs_init (); + grub_host_init (); + + char *t, *inpfull, *rootfull, *res; + t = grub_canonicalize_file_name (arguments.input); + if (!t) + { + grub_util_error (_("cannot open `%s': %s"), arguments.input, + strerror (errno)); + } + + inpfull = xasprintf ("(host)/%s", t); + free (t); + + t = grub_canonicalize_file_name (arguments.root ? : "/"); + if (!t) + { + grub_util_error (_("cannot open `%s': %s"), arguments.root, + strerror (errno)); + } + + rootfull = xasprintf ("(host)/%s", t); + free (t); + + char *cwd = xstrdup (arguments.input); + char *p = strrchr (cwd, '/'); + char *cwdfull; + if (p) + *p = '\0'; + else + { + free (cwd); + cwd = xstrdup ("."); + } + + t = grub_canonicalize_file_name (arguments.cwd ? : cwd); + if (!t) + { + grub_util_error (_("cannot open `%s': %s"), arguments.root, + strerror (errno)); + } + + cwdfull = xasprintf ("(host)/%s", t); + free (t); + + res = grub_syslinux_config_file (rootfull, arguments.target_root ? : "/", + cwdfull, arguments.target_cwd ? : cwd, + inpfull, arguments.flav); + if (!res) + grub_util_error ("%s", grub_errmsg); + if (arguments.output) + { + FILE *f = grub_util_fopen (arguments.output, "wb"); + if (!f) + grub_util_error (_("cannot open `%s': %s"), arguments.output, + strerror (errno)); + fwrite (res, 1, strlen (res), f); + fclose (f); + } + else + printf ("%s\n", res); + free (res); + free (rootfull); + free (inpfull); + free (arguments.root); + free (arguments.output); + free (arguments.target_root); + free (arguments.input); + free (cwdfull); + free (cwd); + + return 0; +} |