mirror of
https://codeberg.org/libreboot/lbmk.git
synced 2026-07-11 14:02:52 +02:00
Leah Rowe
1539aff302
the functions no longer return errors, so i don't need to handle them. furthermore, the handling in state.c is redundant, so i've removed that too. Signed-off-by: Leah Rowe <leah@libreboot.org>
100 lines
2.0 KiB
C
100 lines
2.0 KiB
C
/* SPDX-License-Identifier: MIT
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* Copyright (c) 2022-2026 Leah Rowe <leah@libreboot.org>
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*
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* This tool lets you modify Intel GbE NVM (Gigabit Ethernet
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* Non-Volatile Memory) images, e.g. change the MAC address.
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* These images configure your Intel Gigabit Ethernet adapter.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <stdarg.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "include/common.h"
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static void
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exit_cleanup(void);
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int
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main(int argc, char *argv[])
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{
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struct xstate *x;
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struct commands *cmd;
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struct xfile *f;
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size_t c;
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(void) errhook(exit_cleanup);
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(void) lbsetprogname(argv[0]);
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/* https://man.openbsd.org/pledge.2 */
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/* https://man.openbsd.org/unveil.2 */
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xpledgex("stdio flock rpath wpath cpath unveil", NULL);
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xunveilx("/dev/urandom", "r");
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#ifndef S_ISREG
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err_exit(ECANCELED,
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"Can't determine file types (S_ISREG undefined)");
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#endif
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#if ((CHAR_BIT) != 8)
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err_exit(ECANCELED, "Unsupported char size");
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#endif
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if ((x = xstart(argc, argv)) == NULL)
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err_exit(ECANCELED, "NULL state on init");
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/* parse user command */
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/* TODO: CHECK ACCESSES VIA xstatus() */
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set_cmd(argc, argv);
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set_cmd_args(argc, argv);
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cmd = &x->cmd[x->i];
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f = &x->f;
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if ((cmd->flags & O_ACCMODE) == O_RDONLY)
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xunveilx(f->fname, "r");
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else
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xunveilx(f->fname, "rwc");
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xunveilx(f->tname, "rwc");
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xunveilx(NULL, NULL);
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xpledgex("stdio flock rpath wpath cpath", NULL);
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if (cmd->run == NULL)
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err_exit(errno, "Command not set");
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sanitize_command_list();
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open_gbe_file();
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copy_gbe();
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read_checksums();
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cmd->run();
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for (c = 0; c < items(x->cmd); c++)
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x->cmd[c].run = cmd_helper_err;
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if ((cmd->flags & O_ACCMODE) == O_RDWR)
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write_to_gbe_bin();
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exit_cleanup();
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if (f->io_err_gbe_bin)
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err_exit(EIO, "%s: error writing final file");
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free_and_set_null(&f->tname);
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return EXIT_SUCCESS;
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}
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static void
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exit_cleanup(void)
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{
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return;
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}
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